xref: /petsc/include/petscsys.h (revision 64eb36536758ba5fde9eda0d4d7f84c5f43dcef0)
1 /*
2    This is the main PETSc include file (for C and C++).  It is included by all
3    other PETSc include files, so it almost never has to be specifically included.
4 */
5 #if !defined(PETSCSYS_H)
6 #define PETSCSYS_H
7 
8 /* ========================================================================== */
9 /*
10    petscconf.h is contained in ${PETSC_ARCH}/include/petscconf.h it is
11    found automatically by the compiler due to the -I${PETSC_DIR}/${PETSC_ARCH}/include that
12    PETSc's makefiles add to the compiler rules.
13    For --prefix installs the directory ${PETSC_ARCH} does not exist and petscconf.h is in the same
14    directory as the other PETSc include files.
15 */
16 #include <petscconf.h>
17 #include <petscconf_poison.h>
18 #include <petscfix.h>
19 #include <petscmacros.h>
20 
21 /* placeholder defines */
22 #if PetscHasAttribute(format)
23 #  define PETSC_ATTRIBUTE_FORMAT(strIdx,vaArgIdx)
24 #else
25 #  define PETSC_ATTRIBUTE_FORMAT(strIdx,vaArgIdx)
26 #endif
27 
28 #if defined(PETSC_DESIRE_FEATURE_TEST_MACROS)
29 /*
30    Feature test macros must be included before headers defined by IEEE Std 1003.1-2001
31    We only turn these in PETSc source files that require them by setting PETSC_DESIRE_FEATURE_TEST_MACROS
32 */
33 #  if defined(PETSC__POSIX_C_SOURCE_200112L) && !defined(_POSIX_C_SOURCE)
34 #    define _POSIX_C_SOURCE 200112L
35 #  endif
36 #  if defined(PETSC__BSD_SOURCE) && !defined(_BSD_SOURCE)
37 #    define _BSD_SOURCE
38 #  endif
39 #  if defined(PETSC__DEFAULT_SOURCE) && !defined(_DEFAULT_SOURCE)
40 #    define _DEFAULT_SOURCE
41 #  endif
42 #  if defined(PETSC__GNU_SOURCE) && !defined(_GNU_SOURCE)
43 #    define _GNU_SOURCE
44 #  endif
45 #endif
46 
47 #include <petscsystypes.h>
48 
49 /* ========================================================================== */
50 
51 /*
52     Defines the interface to MPI allowing the use of all MPI functions.
53 
54     PETSc does not use the C++ binding of MPI at ALL. The following flag
55     makes sure the C++ bindings are not included. The C++ bindings REQUIRE
56     putting mpi.h before ANY C++ include files, we cannot control this
57     with all PETSc users. Users who want to use the MPI C++ bindings can include
58     mpicxx.h directly in their code
59 */
60 #if !defined(MPICH_SKIP_MPICXX)
61 #  define MPICH_SKIP_MPICXX 1
62 #endif
63 #if !defined(OMPI_SKIP_MPICXX)
64 #  define OMPI_SKIP_MPICXX 1
65 #endif
66 #if defined(PETSC_HAVE_MPIUNI)
67 #  include <petsc/mpiuni/mpi.h>
68 #else
69 #  include <mpi.h>
70 #endif
71 
72 /*
73    Perform various sanity checks that the correct mpi.h is being included at compile time.
74    This usually happens because
75       * either an unexpected mpi.h is in the default compiler path (i.e. in /usr/include) or
76       * an extra include path -I/something (which contains the unexpected mpi.h) is being passed to the compiler
77 */
78 #if defined(PETSC_HAVE_MPIUNI)
79 #  if !defined(MPIUNI_H)
80 #    error "PETSc was configured with --with-mpi=0 but now appears to be compiling using a different mpi.h"
81 #  endif
82 #elif defined(PETSC_HAVE_I_MPI_NUMVERSION)
83 #  if !defined(I_MPI_NUMVERSION)
84 #    error "PETSc was configured with I_MPI but now appears to be compiling using a non-I_MPI mpi.h"
85 #  elif I_MPI_NUMVERSION != PETSC_HAVE_I_MPI_NUMVERSION
86 #    error "PETSc was configured with one I_MPI mpi.h version but now appears to be compiling using a different I_MPI mpi.h version"
87 #  endif
88 #elif defined(PETSC_HAVE_MVAPICH2_NUMVERSION)
89 #  if !defined(MVAPICH2_NUMVERSION)
90 #    error "PETSc was configured with MVAPICH2 but now appears to be compiling using a non-MVAPICH2 mpi.h"
91 #  elif MVAPICH2_NUMVERSION != PETSC_HAVE_MVAPICH2_NUMVERSION
92 #    error "PETSc was configured with one MVAPICH2 mpi.h version but now appears to be compiling using a different MVAPICH2 mpi.h version"
93 #  endif
94 #elif defined(PETSC_HAVE_MPICH_NUMVERSION)
95 #  if !defined(MPICH_NUMVERSION) || defined(MVAPICH2_NUMVERSION) || defined(I_MPI_NUMVERSION)
96 #    error "PETSc was configured with MPICH but now appears to be compiling using a non-MPICH mpi.h"
97 #  elif (MPICH_NUMVERSION/100000 != PETSC_HAVE_MPICH_NUMVERSION/100000) || (MPICH_NUMVERSION%100000/1000 < PETSC_HAVE_MPICH_NUMVERSION%100000/1000)
98 #    error "PETSc was configured with one MPICH mpi.h version but now appears to be compiling using a different MPICH mpi.h version"
99 #  endif
100 #elif defined(PETSC_HAVE_OMPI_MAJOR_VERSION)
101 #  if !defined(OMPI_MAJOR_VERSION)
102 #    error "PETSc was configured with OpenMPI but now appears to be compiling using a non-OpenMPI mpi.h"
103 #  elif (OMPI_MAJOR_VERSION != PETSC_HAVE_OMPI_MAJOR_VERSION) || (OMPI_MINOR_VERSION != PETSC_HAVE_OMPI_MINOR_VERSION) || (OMPI_RELEASE_VERSION < PETSC_HAVE_OMPI_RELEASE_VERSION)
104 #    error "PETSc was configured with one OpenMPI mpi.h version but now appears to be compiling using a different OpenMPI mpi.h version"
105 #  endif
106 #  define PETSC_MPI_COMM_FMT "p"
107 #  define PETSC_MPI_WIN_FMT  "p"
108 #elif defined(PETSC_HAVE_MSMPI_VERSION)
109 #  if !defined(MSMPI_VER)
110 #    error "PETSc was configured with MSMPI but now appears to be compiling using a non-MSMPI mpi.h"
111 #  elif (MSMPI_VER != PETSC_HAVE_MSMPI_VERSION)
112 #    error "PETSc was configured with one MSMPI mpi.h version but now appears to be compiling using a different MSMPI mpi.h version"
113 #  endif
114 #elif defined(OMPI_MAJOR_VERSION) || defined(MPICH_NUMVERSION) || defined(MSMPI_VER)
115 #  error "PETSc was configured with undetermined MPI - but now appears to be compiling using any of OpenMPI, MS-MPI or a MPICH variant"
116 #endif
117 
118 /* Format specifier for printing MPI_Comm (most implementations use 'int' as type) */
119 #if !defined(PETSC_MPI_COMM_FMT)
120 #  define PETSC_MPI_COMM_FMT "d"
121 #endif
122 
123 #if !defined(PETSC_MPI_WIN_FMT)
124 #  define PETSC_MPI_WIN_FMT "d"
125 #endif
126 
127 /*
128     Need to put stdio.h AFTER mpi.h for MPICH2 with C++ compiler
129     see the top of mpicxx.h in the MPICH2 distribution.
130 */
131 #include <stdio.h>
132 
133 /* MSMPI on 32bit windows requires this yukky hack - that breaks MPI standard compliance */
134 #if !defined(MPIAPI)
135 #define MPIAPI
136 #endif
137 
138 /*
139    Support for Clang (>=3.2) matching type tag arguments with void* buffer types.
140    This allows the compiler to detect cases where the MPI datatype argument passed to a MPI routine
141    does not match the actual type of the argument being passed in
142 */
143 #if defined(__has_attribute) && defined(works_with_const_which_is_not_true)
144 #  if __has_attribute(argument_with_type_tag) && __has_attribute(pointer_with_type_tag) && __has_attribute(type_tag_for_datatype)
145 #    define PetscAttrMPIPointerWithType(bufno,typeno) __attribute__((pointer_with_type_tag(MPI,bufno,typeno)))
146 #    define PetscAttrMPITypeTag(type)                 __attribute__((type_tag_for_datatype(MPI,type)))
147 #    define PetscAttrMPITypeTagLayoutCompatible(type) __attribute__((type_tag_for_datatype(MPI,type,layout_compatible)))
148 #  endif
149 #endif
150 #if !defined(PetscAttrMPIPointerWithType)
151 #  define PetscAttrMPIPointerWithType(bufno,typeno)
152 #  define PetscAttrMPITypeTag(type)
153 #  define PetscAttrMPITypeTagLayoutCompatible(type)
154 #endif
155 
156 PETSC_EXTERN MPI_Datatype MPIU_ENUM PetscAttrMPITypeTag(PetscEnum);
157 PETSC_EXTERN MPI_Datatype MPIU_BOOL PetscAttrMPITypeTag(PetscBool);
158 
159 /*MC
160    MPIU_INT - MPI datatype corresponding to PetscInt
161 
162    Notes:
163    In MPI calls that require an MPI datatype that matches a PetscInt or array of PetscInt values, pass this value.
164 
165    Level: beginner
166 
167 .seealso: PetscReal, PetscScalar, PetscComplex, PetscInt, MPIU_REAL, MPIU_SCALAR, MPIU_COMPLEX
168 M*/
169 
170 PETSC_EXTERN MPI_Datatype MPIU_FORTRANADDR;
171 
172 #if defined(PETSC_USE_64BIT_INDICES)
173 #  define MPIU_INT MPIU_INT64
174 #  define PetscInt_FMT PetscInt64_FMT
175 #else
176 #  define MPIU_INT MPI_INT
177 #  define PetscInt_FMT "d"
178 #endif
179 
180 /*
181     For the rare cases when one needs to send a size_t object with MPI
182 */
183 PETSC_EXTERN MPI_Datatype MPIU_SIZE_T;
184 
185 /*
186       You can use PETSC_STDOUT as a replacement of stdout. You can also change
187     the value of PETSC_STDOUT to redirect all standard output elsewhere
188 */
189 PETSC_EXTERN FILE* PETSC_STDOUT;
190 
191 /*
192       You can use PETSC_STDERR as a replacement of stderr. You can also change
193     the value of PETSC_STDERR to redirect all standard error elsewhere
194 */
195 PETSC_EXTERN FILE* PETSC_STDERR;
196 
197 /* PetscPragmaSIMD - from CeedPragmaSIMD */
198 
199 #if defined(__NEC__)
200 #  define PetscPragmaSIMD _Pragma("_NEC ivdep")
201 #elif defined(__INTEL_COMPILER) && !defined(_WIN32)
202 #  define PetscPragmaSIMD _Pragma("vector")
203 #elif defined(__GNUC__) && __GNUC__ >= 5 && !defined(__PGI)
204 #  define PetscPragmaSIMD _Pragma("GCC ivdep")
205 #elif defined(_OPENMP) && _OPENMP >= 201307
206 #  if defined(_MSC_VER)
207 #    define PetscPragmaSIMD __pragma(omp simd)
208 #  else
209 #    define PetscPragmaSIMD _Pragma("omp simd")
210 #  endif
211 #elif defined(PETSC_HAVE_CRAY_VECTOR)
212 #  define PetscPragmaSIMD _Pragma("_CRI ivdep")
213 #else
214 #  define PetscPragmaSIMD
215 #endif
216 
217 /*
218     Declare extern C stuff after including external header files
219 */
220 
221 PETSC_EXTERN const char *const PetscBools[];
222 
223 PETSC_EXTERN PetscBool PETSC_RUNNING_ON_VALGRIND;
224 /*
225     Defines elementary mathematics functions and constants.
226 */
227 #include <petscmath.h>
228 
229 PETSC_EXTERN const char *const PetscCopyModes[];
230 
231 /*MC
232     PETSC_IGNORE - same as NULL, means PETSc will ignore this argument
233 
234    Level: beginner
235 
236    Note:
237    Accepted by many PETSc functions to not set a parameter and instead use
238           some default
239 
240    Fortran Notes:
241    This macro does not exist in Fortran; you must use PETSC_NULL_INTEGER,
242           PETSC_NULL_DOUBLE_PRECISION etc
243 
244 .seealso: PETSC_DECIDE, PETSC_DEFAULT, PETSC_DETERMINE
245 
246 M*/
247 #define PETSC_IGNORE NULL
248 
249 /* This is deprecated */
250 #define PETSC_NULL NULL
251 
252 /*MC
253     PETSC_DECIDE - standard way of passing in integer or floating point parameter
254        where you wish PETSc to use the default.
255 
256    Level: beginner
257 
258 .seealso: PETSC_DEFAULT, PETSC_IGNORE, PETSC_DETERMINE
259 
260 M*/
261 #define PETSC_DECIDE -1
262 
263 /*MC
264     PETSC_DETERMINE - standard way of passing in integer or floating point parameter
265        where you wish PETSc to compute the required value.
266 
267    Level: beginner
268 
269    Developer Note:
270    I would like to use const PetscInt PETSC_DETERMINE = PETSC_DECIDE; but for
271      some reason this is not allowed by the standard even though PETSC_DECIDE is a constant value.
272 
273 .seealso: PETSC_DECIDE, PETSC_DEFAULT, PETSC_IGNORE, VecSetSizes()
274 
275 M*/
276 #define PETSC_DETERMINE PETSC_DECIDE
277 
278 /*MC
279     PETSC_DEFAULT - standard way of passing in integer or floating point parameter
280        where you wish PETSc to use the default.
281 
282    Level: beginner
283 
284    Fortran Notes:
285    You need to use PETSC_DEFAULT_INTEGER or PETSC_DEFAULT_REAL.
286 
287 .seealso: PETSC_DECIDE, PETSC_IGNORE, PETSC_DETERMINE
288 
289 M*/
290 #define PETSC_DEFAULT -2
291 
292 /*MC
293     PETSC_COMM_WORLD - the equivalent of the MPI_COMM_WORLD communicator which represents
294            all the processes that PETSc knows about.
295 
296    Level: beginner
297 
298    Notes:
299    By default PETSC_COMM_WORLD and MPI_COMM_WORLD are identical unless you wish to
300           run PETSc on ONLY a subset of MPI_COMM_WORLD. In that case create your new (smaller)
301           communicator, call it, say comm, and set PETSC_COMM_WORLD = comm BEFORE calling
302           PetscInitialize(), but after MPI_Init() has been called.
303 
304           The value of PETSC_COMM_WORLD should never be USED/accessed before PetscInitialize()
305           is called because it may not have a valid value yet.
306 
307 .seealso: PETSC_COMM_SELF
308 
309 M*/
310 PETSC_EXTERN MPI_Comm PETSC_COMM_WORLD;
311 
312 /*MC
313     PETSC_COMM_SELF - This is always MPI_COMM_SELF
314 
315    Level: beginner
316 
317    Notes:
318    Do not USE/access or set this variable before PetscInitialize() has been called.
319 
320 .seealso: PETSC_COMM_WORLD
321 
322 M*/
323 #define PETSC_COMM_SELF MPI_COMM_SELF
324 
325 /*MC
326     PETSC_MPI_THREAD_REQUIRED - the required threading support used if PETSc initializes
327            MPI with MPI_Init_thread.
328 
329    Level: beginner
330 
331    Notes:
332    By default PETSC_MPI_THREAD_REQUIRED equals MPI_THREAD_FUNNELED.
333 
334 .seealso: PetscInitialize()
335 
336 M*/
337 PETSC_EXTERN PetscMPIInt PETSC_MPI_THREAD_REQUIRED;
338 
339 PETSC_EXTERN PetscBool PetscBeganMPI;
340 PETSC_EXTERN PetscBool PetscErrorHandlingInitialized;
341 PETSC_EXTERN PetscBool PetscInitializeCalled;
342 PETSC_EXTERN PetscBool PetscFinalizeCalled;
343 PETSC_EXTERN PetscBool PetscViennaCLSynchronize;
344 
345 PETSC_EXTERN PetscErrorCode PetscSetHelpVersionFunctions(PetscErrorCode (*)(MPI_Comm),PetscErrorCode (*)(MPI_Comm));
346 PETSC_EXTERN PetscErrorCode PetscCommDuplicate(MPI_Comm,MPI_Comm*,int*);
347 PETSC_EXTERN PetscErrorCode PetscCommDestroy(MPI_Comm*);
348 PETSC_EXTERN PetscErrorCode PetscCommGetComm(MPI_Comm,MPI_Comm*);
349 PETSC_EXTERN PetscErrorCode PetscCommRestoreComm(MPI_Comm,MPI_Comm*);
350 
351 #if defined(PETSC_HAVE_KOKKOS)
352 PETSC_EXTERN PetscErrorCode PetscKokkosInitializeCheck(void);  /* Initialize Kokkos if not yet. */
353 #endif
354 
355 #if defined(PETSC_HAVE_NVSHMEM)
356 PETSC_EXTERN PetscBool      PetscBeganNvshmem;
357 PETSC_EXTERN PetscBool      PetscNvshmemInitialized;
358 PETSC_EXTERN PetscErrorCode PetscNvshmemFinalize(void);
359 #endif
360 
361 #if defined(PETSC_HAVE_ELEMENTAL)
362 PETSC_EXTERN PetscErrorCode PetscElementalInitializePackage(void);
363 PETSC_EXTERN PetscErrorCode PetscElementalInitialized(PetscBool*);
364 PETSC_EXTERN PetscErrorCode PetscElementalFinalizePackage(void);
365 #endif
366 
367 /*MC
368    PetscMalloc - Allocates memory, One should use PetscNew(), PetscMalloc1() or PetscCalloc1() usually instead of this
369 
370    Synopsis:
371     #include <petscsys.h>
372    PetscErrorCode PetscMalloc(size_t m,void **result)
373 
374    Not Collective
375 
376    Input Parameter:
377 .  m - number of bytes to allocate
378 
379    Output Parameter:
380 .  result - memory allocated
381 
382    Level: beginner
383 
384    Notes:
385    Memory is always allocated at least double aligned
386 
387    It is safe to allocate size 0 and pass the resulting pointer (which may or may not be NULL) to PetscFree().
388 
389 .seealso: PetscFree(), PetscNew()
390 
391 M*/
392 #define PetscMalloc(a,b)  ((*PetscTrMalloc)((a),PETSC_FALSE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(void**)(b)))
393 
394 /*MC
395    PetscRealloc - Rellocates memory
396 
397    Synopsis:
398     #include <petscsys.h>
399    PetscErrorCode PetscRealloc(size_t m,void **result)
400 
401    Not Collective
402 
403    Input Parameters:
404 +  m - number of bytes to allocate
405 -  result - previous memory
406 
407    Output Parameter:
408 .  result - new memory allocated
409 
410    Level: developer
411 
412    Notes:
413    Memory is always allocated at least double aligned
414 
415 .seealso: PetscMalloc(), PetscFree(), PetscNew()
416 
417 M*/
418 #define PetscRealloc(a,b)  ((*PetscTrRealloc)((a),__LINE__,PETSC_FUNCTION_NAME,__FILE__,(void**)(b)))
419 
420 /*MC
421    PetscAddrAlign - Rounds up an address to PETSC_MEMALIGN alignment
422 
423    Synopsis:
424     #include <petscsys.h>
425    void *PetscAddrAlign(void *addr)
426 
427    Not Collective
428 
429    Input Parameters:
430 .  addr - address to align (any pointer type)
431 
432    Level: developer
433 
434 .seealso: PetscMallocAlign()
435 
436 M*/
437 #define PetscAddrAlign(a) (void*)((((PETSC_UINTPTR_T)(a))+(PETSC_MEMALIGN-1)) & ~(PETSC_MEMALIGN-1))
438 
439 /*MC
440    PetscCalloc - Allocates a cleared (zeroed) memory region aligned to PETSC_MEMALIGN
441 
442    Synopsis:
443     #include <petscsys.h>
444    PetscErrorCode PetscCalloc(size_t m,void **result)
445 
446    Not Collective
447 
448    Input Parameter:
449 .  m - number of bytes to allocate
450 
451    Output Parameter:
452 .  result - memory allocated
453 
454    Level: beginner
455 
456    Notes:
457    Memory is always allocated at least double aligned. This macro is useful in allocating memory pointed by void pointers
458 
459    It is safe to allocate size 0 and pass the resulting pointer (which may or may not be NULL) to PetscFree().
460 
461 .seealso: PetscFree(), PetscNew()
462 
463 M*/
464 #define PetscCalloc(m,result)  PetscMallocA(1,PETSC_TRUE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)((size_t)m),(result))
465 
466 /*MC
467    PetscMalloc1 - Allocates an array of memory aligned to PETSC_MEMALIGN
468 
469    Synopsis:
470     #include <petscsys.h>
471    PetscErrorCode PetscMalloc1(size_t m1,type **r1)
472 
473    Not Collective
474 
475    Input Parameter:
476 .  m1 - number of elements to allocate  (may be zero)
477 
478    Output Parameter:
479 .  r1 - memory allocated
480 
481    Note:
482    This uses the sizeof() of the memory type requested to determine the total memory to be allocated, therefore you should not
483          multiply the number of elements requested by the sizeof() the type. For example use
484 $  PetscInt *id;
485 $  PetscMalloc1(10,&id);
486         not
487 $  PetscInt *id;
488 $  PetscMalloc1(10*sizeof(PetscInt),&id);
489 
490         Does not zero the memory allocated, use PetscCalloc1() to obtain memory that has been zeroed.
491 
492    Level: beginner
493 
494 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscCalloc1(), PetscMalloc2()
495 
496 M*/
497 #define PetscMalloc1(m1,r1) PetscMallocA(1,PETSC_FALSE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)((size_t)m1)*sizeof(**(r1)),(r1))
498 
499 /*MC
500    PetscCalloc1 - Allocates a cleared (zeroed) array of memory aligned to PETSC_MEMALIGN
501 
502    Synopsis:
503     #include <petscsys.h>
504    PetscErrorCode PetscCalloc1(size_t m1,type **r1)
505 
506    Not Collective
507 
508    Input Parameter:
509 .  m1 - number of elements to allocate in 1st chunk  (may be zero)
510 
511    Output Parameter:
512 .  r1 - memory allocated
513 
514    Notes:
515    See PetsMalloc1() for more details on usage.
516 
517    Level: beginner
518 
519 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc1(), PetscCalloc2()
520 
521 M*/
522 #define PetscCalloc1(m1,r1) PetscMallocA(1,PETSC_TRUE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)((size_t)m1)*sizeof(**(r1)),(r1))
523 
524 /*MC
525    PetscMalloc2 - Allocates 2 arrays of memory both aligned to PETSC_MEMALIGN
526 
527    Synopsis:
528     #include <petscsys.h>
529    PetscErrorCode PetscMalloc2(size_t m1,type **r1,size_t m2,type **r2)
530 
531    Not Collective
532 
533    Input Parameters:
534 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
535 -  m2 - number of elements to allocate in 2nd chunk  (may be zero)
536 
537    Output Parameters:
538 +  r1 - memory allocated in first chunk
539 -  r2 - memory allocated in second chunk
540 
541    Level: developer
542 
543 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc1(), PetscCalloc2()
544 
545 M*/
546 #define PetscMalloc2(m1,r1,m2,r2) PetscMallocA(2,PETSC_FALSE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)((size_t)m1)*sizeof(**(r1)),(r1),(size_t)((size_t)m2)*sizeof(**(r2)),(r2))
547 
548 /*MC
549    PetscCalloc2 - Allocates 2 cleared (zeroed) arrays of memory both aligned to PETSC_MEMALIGN
550 
551    Synopsis:
552     #include <petscsys.h>
553    PetscErrorCode PetscCalloc2(size_t m1,type **r1,size_t m2,type **r2)
554 
555    Not Collective
556 
557    Input Parameters:
558 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
559 -  m2 - number of elements to allocate in 2nd chunk  (may be zero)
560 
561    Output Parameters:
562 +  r1 - memory allocated in first chunk
563 -  r2 - memory allocated in second chunk
564 
565    Level: developer
566 
567 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscCalloc1(), PetscMalloc2()
568 
569 M*/
570 #define PetscCalloc2(m1,r1,m2,r2) PetscMallocA(2,PETSC_TRUE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)((size_t)m1)*sizeof(**(r1)),(r1),(size_t)((size_t)m2)*sizeof(**(r2)),(r2))
571 
572 /*MC
573    PetscMalloc3 - Allocates 3 arrays of memory, all aligned to PETSC_MEMALIGN
574 
575    Synopsis:
576     #include <petscsys.h>
577    PetscErrorCode PetscMalloc3(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3)
578 
579    Not Collective
580 
581    Input Parameters:
582 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
583 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
584 -  m3 - number of elements to allocate in 3rd chunk  (may be zero)
585 
586    Output Parameters:
587 +  r1 - memory allocated in first chunk
588 .  r2 - memory allocated in second chunk
589 -  r3 - memory allocated in third chunk
590 
591    Level: developer
592 
593 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc3(), PetscFree3()
594 
595 M*/
596 #define PetscMalloc3(m1,r1,m2,r2,m3,r3) PetscMallocA(3,PETSC_FALSE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)((size_t)m1)*sizeof(**(r1)),(r1),(size_t)((size_t)m2)*sizeof(**(r2)),(r2),(size_t)((size_t)m3)*sizeof(**(r3)),(r3))
597 
598 /*MC
599    PetscCalloc3 - Allocates 3 cleared (zeroed) arrays of memory, all aligned to PETSC_MEMALIGN
600 
601    Synopsis:
602     #include <petscsys.h>
603    PetscErrorCode PetscCalloc3(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3)
604 
605    Not Collective
606 
607    Input Parameters:
608 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
609 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
610 -  m3 - number of elements to allocate in 3rd chunk  (may be zero)
611 
612    Output Parameters:
613 +  r1 - memory allocated in first chunk
614 .  r2 - memory allocated in second chunk
615 -  r3 - memory allocated in third chunk
616 
617    Level: developer
618 
619 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscCalloc2(), PetscMalloc3(), PetscFree3()
620 
621 M*/
622 #define PetscCalloc3(m1,r1,m2,r2,m3,r3) PetscMallocA(3,PETSC_TRUE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)((size_t)m1)*sizeof(**(r1)),(r1),(size_t)((size_t)m2)*sizeof(**(r2)),(r2),(size_t)((size_t)m3)*sizeof(**(r3)),(r3))
623 
624 /*MC
625    PetscMalloc4 - Allocates 4 arrays of memory, all aligned to PETSC_MEMALIGN
626 
627    Synopsis:
628     #include <petscsys.h>
629    PetscErrorCode PetscMalloc4(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4)
630 
631    Not Collective
632 
633    Input Parameters:
634 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
635 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
636 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
637 -  m4 - number of elements to allocate in 4th chunk  (may be zero)
638 
639    Output Parameters:
640 +  r1 - memory allocated in first chunk
641 .  r2 - memory allocated in second chunk
642 .  r3 - memory allocated in third chunk
643 -  r4 - memory allocated in fourth chunk
644 
645    Level: developer
646 
647 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc4(), PetscFree4()
648 
649 M*/
650 #define PetscMalloc4(m1,r1,m2,r2,m3,r3,m4,r4) PetscMallocA(4,PETSC_FALSE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)((size_t)m1)*sizeof(**(r1)),(r1),(size_t)((size_t)m2)*sizeof(**(r2)),(r2),(size_t)((size_t)m3)*sizeof(**(r3)),(r3),(size_t)((size_t)m4)*sizeof(**(r4)),(r4))
651 
652 /*MC
653    PetscCalloc4 - Allocates 4 cleared (zeroed) arrays of memory, all aligned to PETSC_MEMALIGN
654 
655    Synopsis:
656     #include <petscsys.h>
657    PetscErrorCode PetscCalloc4(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4)
658 
659    Not Collective
660 
661    Input Parameters:
662 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
663 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
664 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
665 -  m4 - number of elements to allocate in 4th chunk  (may be zero)
666 
667    Output Parameters:
668 +  r1 - memory allocated in first chunk
669 .  r2 - memory allocated in second chunk
670 .  r3 - memory allocated in third chunk
671 -  r4 - memory allocated in fourth chunk
672 
673    Level: developer
674 
675 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc4(), PetscFree4()
676 
677 M*/
678 #define PetscCalloc4(m1,r1,m2,r2,m3,r3,m4,r4) PetscMallocA(4,PETSC_TRUE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)((size_t)m1)*sizeof(**(r1)),(r1),(size_t)((size_t)m2)*sizeof(**(r2)),(r2),(size_t)((size_t)m3)*sizeof(**(r3)),(r3),(size_t)((size_t)m4)*sizeof(**(r4)),(r4))
679 
680 /*MC
681    PetscMalloc5 - Allocates 5 arrays of memory, all aligned to PETSC_MEMALIGN
682 
683    Synopsis:
684     #include <petscsys.h>
685    PetscErrorCode PetscMalloc5(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5)
686 
687    Not Collective
688 
689    Input Parameters:
690 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
691 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
692 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
693 .  m4 - number of elements to allocate in 4th chunk  (may be zero)
694 -  m5 - number of elements to allocate in 5th chunk  (may be zero)
695 
696    Output Parameters:
697 +  r1 - memory allocated in first chunk
698 .  r2 - memory allocated in second chunk
699 .  r3 - memory allocated in third chunk
700 .  r4 - memory allocated in fourth chunk
701 -  r5 - memory allocated in fifth chunk
702 
703    Level: developer
704 
705 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc5(), PetscFree5()
706 
707 M*/
708 #define PetscMalloc5(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5) PetscMallocA(5,PETSC_FALSE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)((size_t)m1)*sizeof(**(r1)),(r1),(size_t)((size_t)m2)*sizeof(**(r2)),(r2),(size_t)((size_t)m3)*sizeof(**(r3)),(r3),(size_t)((size_t)m4)*sizeof(**(r4)),(r4),(size_t)((size_t)m5)*sizeof(**(r5)),(r5))
709 
710 /*MC
711    PetscCalloc5 - Allocates 5 cleared (zeroed) arrays of memory, all aligned to PETSC_MEMALIGN
712 
713    Synopsis:
714     #include <petscsys.h>
715    PetscErrorCode PetscCalloc5(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5)
716 
717    Not Collective
718 
719    Input Parameters:
720 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
721 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
722 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
723 .  m4 - number of elements to allocate in 4th chunk  (may be zero)
724 -  m5 - number of elements to allocate in 5th chunk  (may be zero)
725 
726    Output Parameters:
727 +  r1 - memory allocated in first chunk
728 .  r2 - memory allocated in second chunk
729 .  r3 - memory allocated in third chunk
730 .  r4 - memory allocated in fourth chunk
731 -  r5 - memory allocated in fifth chunk
732 
733    Level: developer
734 
735 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc5(), PetscFree5()
736 
737 M*/
738 #define PetscCalloc5(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5) PetscMallocA(5,PETSC_TRUE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)((size_t)m1)*sizeof(**(r1)),(r1),(size_t)((size_t)m2)*sizeof(**(r2)),(r2),(size_t)((size_t)m3)*sizeof(**(r3)),(r3),(size_t)((size_t)m4)*sizeof(**(r4)),(r4),(size_t)((size_t)m5)*sizeof(**(r5)),(r5))
739 
740 /*MC
741    PetscMalloc6 - Allocates 6 arrays of memory, all aligned to PETSC_MEMALIGN
742 
743    Synopsis:
744     #include <petscsys.h>
745    PetscErrorCode PetscMalloc6(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5,size_t m6,type **r6)
746 
747    Not Collective
748 
749    Input Parameters:
750 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
751 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
752 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
753 .  m4 - number of elements to allocate in 4th chunk  (may be zero)
754 .  m5 - number of elements to allocate in 5th chunk  (may be zero)
755 -  m6 - number of elements to allocate in 6th chunk  (may be zero)
756 
757    Output Parameteasr:
758 +  r1 - memory allocated in first chunk
759 .  r2 - memory allocated in second chunk
760 .  r3 - memory allocated in third chunk
761 .  r4 - memory allocated in fourth chunk
762 .  r5 - memory allocated in fifth chunk
763 -  r6 - memory allocated in sixth chunk
764 
765    Level: developer
766 
767 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc6(), PetscFree3(), PetscFree4(), PetscFree5(), PetscFree6()
768 
769 M*/
770 #define PetscMalloc6(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5,m6,r6) PetscMallocA(6,PETSC_FALSE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)((size_t)m1)*sizeof(**(r1)),(r1),(size_t)((size_t)m2)*sizeof(**(r2)),(r2),(size_t)((size_t)m3)*sizeof(**(r3)),(r3),(size_t)((size_t)m4)*sizeof(**(r4)),(r4),(size_t)((size_t)m5)*sizeof(**(r5)),(r5),(size_t)((size_t)m6)*sizeof(**(r6)),(r6))
771 
772 /*MC
773    PetscCalloc6 - Allocates 6 cleared (zeroed) arrays of memory, all aligned to PETSC_MEMALIGN
774 
775    Synopsis:
776     #include <petscsys.h>
777    PetscErrorCode PetscCalloc6(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5,size_t m6,type **r6)
778 
779    Not Collective
780 
781    Input Parameters:
782 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
783 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
784 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
785 .  m4 - number of elements to allocate in 4th chunk  (may be zero)
786 .  m5 - number of elements to allocate in 5th chunk  (may be zero)
787 -  m6 - number of elements to allocate in 6th chunk  (may be zero)
788 
789    Output Parameters:
790 +  r1 - memory allocated in first chunk
791 .  r2 - memory allocated in second chunk
792 .  r3 - memory allocated in third chunk
793 .  r4 - memory allocated in fourth chunk
794 .  r5 - memory allocated in fifth chunk
795 -  r6 - memory allocated in sixth chunk
796 
797    Level: developer
798 
799 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscMalloc6(), PetscFree6()
800 
801 M*/
802 #define PetscCalloc6(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5,m6,r6) PetscMallocA(6,PETSC_TRUE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)((size_t)m1)*sizeof(**(r1)),(r1),(size_t)((size_t)m2)*sizeof(**(r2)),(r2),(size_t)((size_t)m3)*sizeof(**(r3)),(r3),(size_t)((size_t)m4)*sizeof(**(r4)),(r4),(size_t)((size_t)m5)*sizeof(**(r5)),(r5),(size_t)((size_t)m6)*sizeof(**(r6)),(r6))
803 
804 /*MC
805    PetscMalloc7 - Allocates 7 arrays of memory, all aligned to PETSC_MEMALIGN
806 
807    Synopsis:
808     #include <petscsys.h>
809    PetscErrorCode PetscMalloc7(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5,size_t m6,type **r6,size_t m7,type **r7)
810 
811    Not Collective
812 
813    Input Parameters:
814 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
815 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
816 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
817 .  m4 - number of elements to allocate in 4th chunk  (may be zero)
818 .  m5 - number of elements to allocate in 5th chunk  (may be zero)
819 .  m6 - number of elements to allocate in 6th chunk  (may be zero)
820 -  m7 - number of elements to allocate in 7th chunk  (may be zero)
821 
822    Output Parameters:
823 +  r1 - memory allocated in first chunk
824 .  r2 - memory allocated in second chunk
825 .  r3 - memory allocated in third chunk
826 .  r4 - memory allocated in fourth chunk
827 .  r5 - memory allocated in fifth chunk
828 .  r6 - memory allocated in sixth chunk
829 -  r7 - memory allocated in seventh chunk
830 
831    Level: developer
832 
833 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc7(), PetscFree7()
834 
835 M*/
836 #define PetscMalloc7(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5,m6,r6,m7,r7) PetscMallocA(7,PETSC_FALSE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)((size_t)m1)*sizeof(**(r1)),(r1),(size_t)((size_t)m2)*sizeof(**(r2)),(r2),(size_t)((size_t)m3)*sizeof(**(r3)),(r3),(size_t)((size_t)m4)*sizeof(**(r4)),(r4),(size_t)((size_t)m5)*sizeof(**(r5)),(r5),(size_t)((size_t)m6)*sizeof(**(r6)),(r6),(size_t)((size_t)m7)*sizeof(**(r7)),(r7))
837 
838 /*MC
839    PetscCalloc7 - Allocates 7 cleared (zeroed) arrays of memory, all aligned to PETSC_MEMALIGN
840 
841    Synopsis:
842     #include <petscsys.h>
843    PetscErrorCode PetscCalloc7(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5,size_t m6,type **r6,size_t m7,type **r7)
844 
845    Not Collective
846 
847    Input Parameters:
848 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
849 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
850 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
851 .  m4 - number of elements to allocate in 4th chunk  (may be zero)
852 .  m5 - number of elements to allocate in 5th chunk  (may be zero)
853 .  m6 - number of elements to allocate in 6th chunk  (may be zero)
854 -  m7 - number of elements to allocate in 7th chunk  (may be zero)
855 
856    Output Parameters:
857 +  r1 - memory allocated in first chunk
858 .  r2 - memory allocated in second chunk
859 .  r3 - memory allocated in third chunk
860 .  r4 - memory allocated in fourth chunk
861 .  r5 - memory allocated in fifth chunk
862 .  r6 - memory allocated in sixth chunk
863 -  r7 - memory allocated in seventh chunk
864 
865    Level: developer
866 
867 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscMalloc7(), PetscFree7()
868 
869 M*/
870 #define PetscCalloc7(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5,m6,r6,m7,r7) PetscMallocA(7,PETSC_TRUE,__LINE__,PETSC_FUNCTION_NAME,__FILE__,(size_t)((size_t)m1)*sizeof(**(r1)),(r1),(size_t)((size_t)m2)*sizeof(**(r2)),(r2),(size_t)((size_t)m3)*sizeof(**(r3)),(r3),(size_t)((size_t)m4)*sizeof(**(r4)),(r4),(size_t)((size_t)m5)*sizeof(**(r5)),(r5),(size_t)((size_t)m6)*sizeof(**(r6)),(r6),(size_t)((size_t)m7)*sizeof(**(r7)),(r7))
871 
872 /*MC
873    PetscNew - Allocates memory of a particular type, zeros the memory! Aligned to PETSC_MEMALIGN
874 
875    Synopsis:
876     #include <petscsys.h>
877    PetscErrorCode PetscNew(type **result)
878 
879    Not Collective
880 
881    Output Parameter:
882 .  result - memory allocated, sized to match pointer type
883 
884    Level: beginner
885 
886 .seealso: PetscFree(), PetscMalloc(), PetscNewLog(), PetscCalloc1(), PetscMalloc1()
887 
888 M*/
889 #define PetscNew(b)      PetscCalloc1(1,(b))
890 
891 /*MC
892    PetscNewLog - Allocates memory of a type matching pointer, zeros the memory! Aligned to PETSC_MEMALIGN. Associates the memory allocated
893          with the given object using PetscLogObjectMemory().
894 
895    Synopsis:
896     #include <petscsys.h>
897    PetscErrorCode PetscNewLog(PetscObject obj,type **result)
898 
899    Not Collective
900 
901    Input Parameter:
902 .  obj - object memory is logged to
903 
904    Output Parameter:
905 .  result - memory allocated, sized to match pointer type
906 
907    Level: developer
908 
909 .seealso: PetscFree(), PetscMalloc(), PetscNew(), PetscLogObjectMemory(), PetscCalloc1(), PetscMalloc1()
910 
911 M*/
912 #define PetscNewLog(o,b) (PetscNew((b)) || PetscLogObjectMemory((PetscObject)o,sizeof(**(b))))
913 
914 /*MC
915    PetscFree - Frees memory
916 
917    Synopsis:
918     #include <petscsys.h>
919    PetscErrorCode PetscFree(void *memory)
920 
921    Not Collective
922 
923    Input Parameter:
924 .   memory - memory to free (the pointer is ALWAYS set to NULL upon success)
925 
926    Level: beginner
927 
928    Notes:
929    Do not free memory obtained with PetscMalloc2(), PetscCalloc2() etc, they must be freed with PetscFree2() etc.
930 
931    It is safe to call PetscFree() on a NULL pointer.
932 
933 .seealso: PetscNew(), PetscMalloc(), PetscNewLog(), PetscMalloc1(), PetscCalloc1()
934 
935 M*/
936 #define PetscFree(a)   ((*PetscTrFree)((void*)(a),__LINE__,PETSC_FUNCTION_NAME,__FILE__) || ((a) = NULL,0))
937 
938 /*MC
939    PetscFree2 - Frees 2 chunks of memory obtained with PetscMalloc2()
940 
941    Synopsis:
942     #include <petscsys.h>
943    PetscErrorCode PetscFree2(void *memory1,void *memory2)
944 
945    Not Collective
946 
947    Input Parameters:
948 +   memory1 - memory to free
949 -   memory2 - 2nd memory to free
950 
951    Level: developer
952 
953    Notes:
954     Memory must have been obtained with PetscMalloc2()
955 
956 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree()
957 
958 M*/
959 #define PetscFree2(m1,m2)   PetscFreeA(2,__LINE__,PETSC_FUNCTION_NAME,__FILE__,&(m1),&(m2))
960 
961 /*MC
962    PetscFree3 - Frees 3 chunks of memory obtained with PetscMalloc3()
963 
964    Synopsis:
965     #include <petscsys.h>
966    PetscErrorCode PetscFree3(void *memory1,void *memory2,void *memory3)
967 
968    Not Collective
969 
970    Input Parameters:
971 +   memory1 - memory to free
972 .   memory2 - 2nd memory to free
973 -   memory3 - 3rd memory to free
974 
975    Level: developer
976 
977    Notes:
978     Memory must have been obtained with PetscMalloc3()
979 
980 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3()
981 
982 M*/
983 #define PetscFree3(m1,m2,m3)   PetscFreeA(3,__LINE__,PETSC_FUNCTION_NAME,__FILE__,&(m1),&(m2),&(m3))
984 
985 /*MC
986    PetscFree4 - Frees 4 chunks of memory obtained with PetscMalloc4()
987 
988    Synopsis:
989     #include <petscsys.h>
990    PetscErrorCode PetscFree4(void *m1,void *m2,void *m3,void *m4)
991 
992    Not Collective
993 
994    Input Parameters:
995 +   m1 - memory to free
996 .   m2 - 2nd memory to free
997 .   m3 - 3rd memory to free
998 -   m4 - 4th memory to free
999 
1000    Level: developer
1001 
1002    Notes:
1003     Memory must have been obtained with PetscMalloc4()
1004 
1005 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4()
1006 
1007 M*/
1008 #define PetscFree4(m1,m2,m3,m4)   PetscFreeA(4,__LINE__,PETSC_FUNCTION_NAME,__FILE__,&(m1),&(m2),&(m3),&(m4))
1009 
1010 /*MC
1011    PetscFree5 - Frees 5 chunks of memory obtained with PetscMalloc5()
1012 
1013    Synopsis:
1014     #include <petscsys.h>
1015    PetscErrorCode PetscFree5(void *m1,void *m2,void *m3,void *m4,void *m5)
1016 
1017    Not Collective
1018 
1019    Input Parameters:
1020 +   m1 - memory to free
1021 .   m2 - 2nd memory to free
1022 .   m3 - 3rd memory to free
1023 .   m4 - 4th memory to free
1024 -   m5 - 5th memory to free
1025 
1026    Level: developer
1027 
1028    Notes:
1029     Memory must have been obtained with PetscMalloc5()
1030 
1031 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4(), PetscMalloc5()
1032 
1033 M*/
1034 #define PetscFree5(m1,m2,m3,m4,m5)   PetscFreeA(5,__LINE__,PETSC_FUNCTION_NAME,__FILE__,&(m1),&(m2),&(m3),&(m4),&(m5))
1035 
1036 /*MC
1037    PetscFree6 - Frees 6 chunks of memory obtained with PetscMalloc6()
1038 
1039    Synopsis:
1040     #include <petscsys.h>
1041    PetscErrorCode PetscFree6(void *m1,void *m2,void *m3,void *m4,void *m5,void *m6)
1042 
1043    Not Collective
1044 
1045    Input Parameters:
1046 +   m1 - memory to free
1047 .   m2 - 2nd memory to free
1048 .   m3 - 3rd memory to free
1049 .   m4 - 4th memory to free
1050 .   m5 - 5th memory to free
1051 -   m6 - 6th memory to free
1052 
1053    Level: developer
1054 
1055    Notes:
1056     Memory must have been obtained with PetscMalloc6()
1057 
1058 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4(), PetscMalloc5(), PetscMalloc6()
1059 
1060 M*/
1061 #define PetscFree6(m1,m2,m3,m4,m5,m6)   PetscFreeA(6,__LINE__,PETSC_FUNCTION_NAME,__FILE__,&(m1),&(m2),&(m3),&(m4),&(m5),&(m6))
1062 
1063 /*MC
1064    PetscFree7 - Frees 7 chunks of memory obtained with PetscMalloc7()
1065 
1066    Synopsis:
1067     #include <petscsys.h>
1068    PetscErrorCode PetscFree7(void *m1,void *m2,void *m3,void *m4,void *m5,void *m6,void *m7)
1069 
1070    Not Collective
1071 
1072    Input Parameters:
1073 +   m1 - memory to free
1074 .   m2 - 2nd memory to free
1075 .   m3 - 3rd memory to free
1076 .   m4 - 4th memory to free
1077 .   m5 - 5th memory to free
1078 .   m6 - 6th memory to free
1079 -   m7 - 7th memory to free
1080 
1081    Level: developer
1082 
1083    Notes:
1084     Memory must have been obtained with PetscMalloc7()
1085 
1086 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4(), PetscMalloc5(), PetscMalloc6(),
1087           PetscMalloc7()
1088 
1089 M*/
1090 #define PetscFree7(m1,m2,m3,m4,m5,m6,m7)   PetscFreeA(7,__LINE__,PETSC_FUNCTION_NAME,__FILE__,&(m1),&(m2),&(m3),&(m4),&(m5),&(m6),&(m7))
1091 
1092 PETSC_EXTERN PetscErrorCode PetscMallocA(int,PetscBool,int,const char *,const char *,size_t,void *,...);
1093 PETSC_EXTERN PetscErrorCode PetscFreeA(int,int,const char *,const char *,void *,...);
1094 PETSC_EXTERN PetscErrorCode (*PetscTrMalloc)(size_t,PetscBool,int,const char[],const char[],void**);
1095 PETSC_EXTERN PetscErrorCode (*PetscTrFree)(void*,int,const char[],const char[]);
1096 PETSC_EXTERN PetscErrorCode (*PetscTrRealloc)(size_t,int,const char[],const char[],void**);
1097 PETSC_EXTERN PetscErrorCode PetscMallocSetCoalesce(PetscBool);
1098 PETSC_EXTERN PetscErrorCode PetscMallocSet(PetscErrorCode (*)(size_t,PetscBool,int,const char[],const char[],void**),PetscErrorCode (*)(void*,int,const char[],const char[]),PetscErrorCode (*)(size_t,int,const char[],const char[], void **));
1099 PETSC_EXTERN PetscErrorCode PetscMallocClear(void);
1100 
1101 /*
1102   Unlike PetscMallocSet and PetscMallocClear which overwrite the existing settings, these two functions save the previous choice of allocator, and should be used in pair.
1103 */
1104 PETSC_EXTERN PetscErrorCode PetscMallocSetDRAM(void);
1105 PETSC_EXTERN PetscErrorCode PetscMallocResetDRAM(void);
1106 #if defined(PETSC_HAVE_CUDA)
1107 PETSC_EXTERN PetscErrorCode PetscMallocSetCUDAHost(void);
1108 PETSC_EXTERN PetscErrorCode PetscMallocResetCUDAHost(void);
1109 #endif
1110 #if defined(PETSC_HAVE_HIP)
1111 PETSC_EXTERN PetscErrorCode PetscMallocSetHIPHost(void);
1112 PETSC_EXTERN PetscErrorCode PetscMallocResetHIPHost(void);
1113 #endif
1114 
1115 #define MPIU_PETSCLOGDOUBLE  MPI_DOUBLE
1116 #define MPIU_2PETSCLOGDOUBLE MPI_2DOUBLE_PRECISION
1117 
1118 /*
1119    Routines for tracing memory corruption/bleeding with default PETSc memory allocation
1120 */
1121 PETSC_EXTERN PetscErrorCode PetscMallocDump(FILE *);
1122 PETSC_EXTERN PetscErrorCode PetscMallocView(FILE *);
1123 PETSC_EXTERN PetscErrorCode PetscMallocGetCurrentUsage(PetscLogDouble *);
1124 PETSC_EXTERN PetscErrorCode PetscMallocGetMaximumUsage(PetscLogDouble *);
1125 PETSC_EXTERN PetscErrorCode PetscMallocPushMaximumUsage(int);
1126 PETSC_EXTERN PetscErrorCode PetscMallocPopMaximumUsage(int,PetscLogDouble*);
1127 PETSC_EXTERN PetscErrorCode PetscMallocSetDebug(PetscBool,PetscBool);
1128 PETSC_EXTERN PetscErrorCode PetscMallocGetDebug(PetscBool*,PetscBool*,PetscBool*);
1129 PETSC_EXTERN PetscErrorCode PetscMallocValidate(int,const char[],const char[]);
1130 PETSC_EXTERN PetscErrorCode PetscMallocViewSet(PetscLogDouble);
1131 PETSC_EXTERN PetscErrorCode PetscMallocViewGet(PetscBool*);
1132 PETSC_EXTERN PetscErrorCode PetscMallocLogRequestedSizeSet(PetscBool);
1133 PETSC_EXTERN PetscErrorCode PetscMallocLogRequestedSizeGet(PetscBool*);
1134 
1135 PETSC_EXTERN const char *const PetscDataTypes[];
1136 PETSC_EXTERN PetscErrorCode PetscDataTypeToMPIDataType(PetscDataType,MPI_Datatype*);
1137 PETSC_EXTERN PetscErrorCode PetscMPIDataTypeToPetscDataType(MPI_Datatype,PetscDataType*);
1138 PETSC_EXTERN PetscErrorCode PetscDataTypeGetSize(PetscDataType,size_t*);
1139 PETSC_EXTERN PetscErrorCode PetscDataTypeFromString(const char*,PetscDataType*,PetscBool*);
1140 
1141 /*
1142     Basic memory and string operations. These are usually simple wrappers
1143    around the basic Unix system calls, but a few of them have additional
1144    functionality and/or error checking.
1145 */
1146 PETSC_EXTERN PetscErrorCode PetscMemcmp(const void*,const void*,size_t,PetscBool  *);
1147 PETSC_EXTERN PetscErrorCode PetscStrlen(const char[],size_t*);
1148 PETSC_EXTERN PetscErrorCode PetscStrToArray(const char[],char,int*,char ***);
1149 PETSC_EXTERN PetscErrorCode PetscStrToArrayDestroy(int,char **);
1150 PETSC_EXTERN PetscErrorCode PetscStrcmp(const char[],const char[],PetscBool  *);
1151 PETSC_EXTERN PetscErrorCode PetscStrgrt(const char[],const char[],PetscBool  *);
1152 PETSC_EXTERN PetscErrorCode PetscStrcasecmp(const char[],const char[],PetscBool *);
1153 PETSC_EXTERN PetscErrorCode PetscStrncmp(const char[],const char[],size_t,PetscBool *);
1154 PETSC_EXTERN PetscErrorCode PetscStrcpy(char[],const char[]);
1155 PETSC_EXTERN PetscErrorCode PetscStrcat(char[],const char[]);
1156 PETSC_EXTERN PetscErrorCode PetscStrlcat(char[],const char[],size_t);
1157 PETSC_EXTERN PetscErrorCode PetscStrncpy(char[],const char[],size_t);
1158 PETSC_EXTERN PetscErrorCode PetscStrchr(const char[],char,char *[]);
1159 PETSC_EXTERN PetscErrorCode PetscStrtolower(char[]);
1160 PETSC_EXTERN PetscErrorCode PetscStrtoupper(char[]);
1161 PETSC_EXTERN PetscErrorCode PetscStrrchr(const char[],char,char *[]);
1162 PETSC_EXTERN PetscErrorCode PetscStrstr(const char[],const char[],char *[]);
1163 PETSC_EXTERN PetscErrorCode PetscStrrstr(const char[],const char[],char *[]);
1164 PETSC_EXTERN PetscErrorCode PetscStrendswith(const char[],const char[],PetscBool*);
1165 PETSC_EXTERN PetscErrorCode PetscStrbeginswith(const char[],const char[],PetscBool*);
1166 PETSC_EXTERN PetscErrorCode PetscStrendswithwhich(const char[],const char *const*,PetscInt*);
1167 PETSC_EXTERN PetscErrorCode PetscStrallocpy(const char[],char *[]);
1168 PETSC_EXTERN PetscErrorCode PetscStrArrayallocpy(const char *const*,char***);
1169 PETSC_EXTERN PetscErrorCode PetscStrArrayDestroy(char***);
1170 PETSC_EXTERN PetscErrorCode PetscStrNArrayallocpy(PetscInt,const char *const*,char***);
1171 PETSC_EXTERN PetscErrorCode PetscStrNArrayDestroy(PetscInt,char***);
1172 PETSC_EXTERN PetscErrorCode PetscStrreplace(MPI_Comm,const char[],char[],size_t);
1173 
1174 PETSC_EXTERN void PetscStrcmpNoError(const char[],const char[],PetscBool  *);
1175 
1176 PETSC_EXTERN PetscErrorCode PetscTokenCreate(const char[],const char,PetscToken*);
1177 PETSC_EXTERN PetscErrorCode PetscTokenFind(PetscToken,char *[]);
1178 PETSC_EXTERN PetscErrorCode PetscTokenDestroy(PetscToken*);
1179 
1180 PETSC_EXTERN PetscErrorCode PetscStrInList(const char[],const char[],char,PetscBool*);
1181 PETSC_EXTERN PetscErrorCode PetscEListFind(PetscInt,const char *const*,const char*,PetscInt*,PetscBool*);
1182 PETSC_EXTERN PetscErrorCode PetscEnumFind(const char *const*,const char*,PetscEnum*,PetscBool*);
1183 
1184 /*
1185    These are MPI operations for MPI_Allreduce() etc
1186 */
1187 PETSC_EXTERN MPI_Op MPIU_MAXSUM_OP;
1188 #if defined(PETSC_USE_REAL___FLOAT128) || defined(PETSC_USE_REAL___FP16)
1189 PETSC_EXTERN MPI_Op MPIU_SUM;
1190 PETSC_EXTERN MPI_Op MPIU_MAX;
1191 PETSC_EXTERN MPI_Op MPIU_MIN;
1192 #else
1193 #define MPIU_SUM MPI_SUM
1194 #define MPIU_MAX MPI_MAX
1195 #define MPIU_MIN MPI_MIN
1196 #endif
1197 PETSC_EXTERN PetscErrorCode PetscMaxSum(MPI_Comm,const PetscInt[],PetscInt*,PetscInt*);
1198 
1199 PETSC_EXTERN PetscErrorCode MPIULong_Send(void*,PetscInt,MPI_Datatype,PetscMPIInt,PetscMPIInt,MPI_Comm);
1200 PETSC_EXTERN PetscErrorCode MPIULong_Recv(void*,PetscInt,MPI_Datatype,PetscMPIInt,PetscMPIInt,MPI_Comm);
1201 
1202 PETSC_EXTERN const char *const PetscFileModes[];
1203 
1204 /*
1205     Defines PETSc error handling.
1206 */
1207 #include <petscerror.h>
1208 
1209 #define PETSC_SMALLEST_CLASSID  1211211
1210 PETSC_EXTERN PetscClassId PETSC_LARGEST_CLASSID;
1211 PETSC_EXTERN PetscClassId PETSC_OBJECT_CLASSID;
1212 PETSC_EXTERN PetscErrorCode PetscClassIdRegister(const char[],PetscClassId *);
1213 PETSC_EXTERN PetscErrorCode PetscObjectGetId(PetscObject,PetscObjectId*);
1214 PETSC_EXTERN PetscErrorCode PetscObjectCompareId(PetscObject,PetscObjectId,PetscBool*);
1215 
1216 /*
1217    Routines that get memory usage information from the OS
1218 */
1219 PETSC_EXTERN PetscErrorCode PetscMemoryGetCurrentUsage(PetscLogDouble *);
1220 PETSC_EXTERN PetscErrorCode PetscMemoryGetMaximumUsage(PetscLogDouble *);
1221 PETSC_EXTERN PetscErrorCode PetscMemorySetGetMaximumUsage(void);
1222 PETSC_EXTERN PetscErrorCode PetscMemoryTrace(const char[]);
1223 
1224 PETSC_EXTERN PetscErrorCode PetscSleep(PetscReal);
1225 
1226 /*
1227    Initialization of PETSc
1228 */
1229 PETSC_EXTERN PetscErrorCode PetscInitialize(int*,char***,const char[],const char[]);
1230 PETSC_EXTERN PetscErrorCode PetscInitializeNoPointers(int,char**,const char[],const char[]);
1231 PETSC_EXTERN PetscErrorCode PetscInitializeNoArguments(void);
1232 PETSC_EXTERN PetscErrorCode PetscInitialized(PetscBool *);
1233 PETSC_EXTERN PetscErrorCode PetscFinalized(PetscBool *);
1234 PETSC_EXTERN PetscErrorCode PetscFinalize(void);
1235 PETSC_EXTERN PetscErrorCode PetscInitializeFortran(void);
1236 PETSC_EXTERN PetscErrorCode PetscGetArgs(int*,char ***);
1237 PETSC_EXTERN PetscErrorCode PetscGetArguments(char ***);
1238 PETSC_EXTERN PetscErrorCode PetscFreeArguments(char **);
1239 
1240 PETSC_EXTERN PetscErrorCode PetscEnd(void);
1241 PETSC_EXTERN PetscErrorCode PetscSysInitializePackage(void);
1242 
1243 PETSC_EXTERN PetscErrorCode PetscPythonInitialize(const char[],const char[]);
1244 PETSC_EXTERN PetscErrorCode PetscPythonFinalize(void);
1245 PETSC_EXTERN PetscErrorCode PetscPythonPrintError(void);
1246 PETSC_EXTERN PetscErrorCode PetscPythonMonitorSet(PetscObject,const char[]);
1247 
1248 PETSC_EXTERN PetscErrorCode PetscMonitorCompare(PetscErrorCode (*)(void),void *,PetscErrorCode (*)(void**),PetscErrorCode (*)(void),void *,PetscErrorCode (*)(void**),PetscBool *);
1249 
1250 /*
1251      These are so that in extern C code we can caste function pointers to non-extern C
1252    function pointers. Since the regular C++ code expects its function pointers to be C++
1253 */
1254 PETSC_EXTERN_TYPEDEF typedef void (**PetscVoidStarFunction)(void);
1255 PETSC_EXTERN_TYPEDEF typedef void (*PetscVoidFunction)(void);
1256 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*PetscErrorCodeFunction)(void);
1257 
1258 /*
1259     Functions that can act on any PETSc object.
1260 */
1261 PETSC_EXTERN PetscErrorCode PetscObjectDestroy(PetscObject*);
1262 PETSC_EXTERN PetscErrorCode PetscObjectGetComm(PetscObject,MPI_Comm *);
1263 PETSC_EXTERN PetscErrorCode PetscObjectGetClassId(PetscObject,PetscClassId *);
1264 PETSC_EXTERN PetscErrorCode PetscObjectGetClassName(PetscObject,const char *[]);
1265 PETSC_EXTERN PetscErrorCode PetscObjectGetType(PetscObject,const char *[]);
1266 PETSC_EXTERN PetscErrorCode PetscObjectSetName(PetscObject,const char[]);
1267 PETSC_EXTERN PetscErrorCode PetscObjectGetName(PetscObject,const char*[]);
1268 PETSC_EXTERN PetscErrorCode PetscObjectSetTabLevel(PetscObject,PetscInt);
1269 PETSC_EXTERN PetscErrorCode PetscObjectGetTabLevel(PetscObject,PetscInt*);
1270 PETSC_EXTERN PetscErrorCode PetscObjectIncrementTabLevel(PetscObject,PetscObject,PetscInt);
1271 PETSC_EXTERN PetscErrorCode PetscObjectReference(PetscObject);
1272 PETSC_EXTERN PetscErrorCode PetscObjectGetReference(PetscObject,PetscInt*);
1273 PETSC_EXTERN PetscErrorCode PetscObjectDereference(PetscObject);
1274 PETSC_EXTERN PetscErrorCode PetscObjectGetNewTag(PetscObject,PetscMPIInt*);
1275 PETSC_EXTERN PetscErrorCode PetscObjectCompose(PetscObject,const char[],PetscObject);
1276 PETSC_EXTERN PetscErrorCode PetscObjectRemoveReference(PetscObject,const char[]);
1277 PETSC_EXTERN PetscErrorCode PetscObjectQuery(PetscObject,const char[],PetscObject*);
1278 PETSC_EXTERN PetscErrorCode PetscObjectComposeFunction_Private(PetscObject,const char[],void (*)(void));
1279 #define PetscObjectComposeFunction(a,b,d) PetscObjectComposeFunction_Private(a,b,(PetscVoidFunction)(d))
1280 PETSC_EXTERN PetscErrorCode PetscObjectSetFromOptions(PetscObject);
1281 PETSC_EXTERN PetscErrorCode PetscObjectSetUp(PetscObject);
1282 PETSC_EXTERN PetscErrorCode PetscObjectSetPrintedOptions(PetscObject);
1283 PETSC_EXTERN PetscErrorCode PetscObjectInheritPrintedOptions(PetscObject,PetscObject);
1284 PETSC_EXTERN PetscErrorCode PetscCommGetNewTag(MPI_Comm,PetscMPIInt*);
1285 
1286 #include <petscviewertypes.h>
1287 #include <petscoptions.h>
1288 
1289 PETSC_EXTERN PetscErrorCode PetscMallocTraceSet(PetscViewer,PetscBool,PetscLogDouble);
1290 PETSC_EXTERN PetscErrorCode PetscMallocTraceGet(PetscBool*);
1291 
1292 PETSC_EXTERN PetscErrorCode PetscObjectsListGetGlobalNumbering(MPI_Comm,PetscInt,PetscObject*,PetscInt*,PetscInt*);
1293 
1294 PETSC_EXTERN PetscErrorCode PetscMemoryView(PetscViewer,const char[]);
1295 PETSC_EXTERN PetscErrorCode PetscObjectPrintClassNamePrefixType(PetscObject,PetscViewer);
1296 PETSC_EXTERN PetscErrorCode PetscObjectView(PetscObject,PetscViewer);
1297 #define PetscObjectQueryFunction(obj,name,fptr) PetscObjectQueryFunction_Private((obj),(name),(PetscVoidFunction*)(fptr))
1298 PETSC_EXTERN PetscErrorCode PetscObjectQueryFunction_Private(PetscObject,const char[],void (**)(void));
1299 PETSC_EXTERN PetscErrorCode PetscObjectSetOptionsPrefix(PetscObject,const char[]);
1300 PETSC_EXTERN PetscErrorCode PetscObjectAppendOptionsPrefix(PetscObject,const char[]);
1301 PETSC_EXTERN PetscErrorCode PetscObjectPrependOptionsPrefix(PetscObject,const char[]);
1302 PETSC_EXTERN PetscErrorCode PetscObjectGetOptionsPrefix(PetscObject,const char*[]);
1303 PETSC_EXTERN PetscErrorCode PetscObjectChangeTypeName(PetscObject,const char[]);
1304 PETSC_EXTERN PetscErrorCode PetscObjectRegisterDestroy(PetscObject);
1305 PETSC_EXTERN PetscErrorCode PetscObjectRegisterDestroyAll(void);
1306 PETSC_EXTERN PetscErrorCode PetscObjectViewFromOptions(PetscObject,PetscObject,const char[]);
1307 PETSC_EXTERN PetscErrorCode PetscObjectName(PetscObject);
1308 PETSC_EXTERN PetscErrorCode PetscObjectTypeCompare(PetscObject,const char[],PetscBool *);
1309 PETSC_EXTERN PetscErrorCode PetscObjectBaseTypeCompare(PetscObject,const char[],PetscBool *);
1310 PETSC_EXTERN PetscErrorCode PetscObjectTypeCompareAny(PetscObject,PetscBool*,const char[],...);
1311 PETSC_EXTERN PetscErrorCode PetscObjectBaseTypeCompareAny(PetscObject,PetscBool*,const char[],...);
1312 PETSC_EXTERN PetscErrorCode PetscRegisterFinalize(PetscErrorCode (*)(void));
1313 PETSC_EXTERN PetscErrorCode PetscRegisterFinalizeAll(void);
1314 
1315 #if defined(PETSC_HAVE_SAWS)
1316 PETSC_EXTERN PetscErrorCode PetscSAWsBlock(void);
1317 PETSC_EXTERN PetscErrorCode PetscObjectSAWsViewOff(PetscObject);
1318 PETSC_EXTERN PetscErrorCode PetscObjectSAWsSetBlock(PetscObject,PetscBool);
1319 PETSC_EXTERN PetscErrorCode PetscObjectSAWsBlock(PetscObject);
1320 PETSC_EXTERN PetscErrorCode PetscObjectSAWsGrantAccess(PetscObject);
1321 PETSC_EXTERN PetscErrorCode PetscObjectSAWsTakeAccess(PetscObject);
1322 PETSC_EXTERN void           PetscStackSAWsGrantAccess(void);
1323 PETSC_EXTERN void           PetscStackSAWsTakeAccess(void);
1324 PETSC_EXTERN PetscErrorCode PetscStackViewSAWs(void);
1325 PETSC_EXTERN PetscErrorCode PetscStackSAWsViewOff(void);
1326 
1327 #else
1328 #define PetscSAWsBlock()                        0
1329 #define PetscObjectSAWsViewOff(obj)             0
1330 #define PetscObjectSAWsSetBlock(obj,flg)        0
1331 #define PetscObjectSAWsBlock(obj)               0
1332 #define PetscObjectSAWsGrantAccess(obj)         0
1333 #define PetscObjectSAWsTakeAccess(obj)          0
1334 #define PetscStackViewSAWs()                    0
1335 #define PetscStackSAWsViewOff()                 0
1336 #define PetscStackSAWsTakeAccess()
1337 #define PetscStackSAWsGrantAccess()
1338 
1339 #endif
1340 
1341 PETSC_EXTERN PetscErrorCode PetscDLOpen(const char[],PetscDLMode,PetscDLHandle *);
1342 PETSC_EXTERN PetscErrorCode PetscDLClose(PetscDLHandle *);
1343 PETSC_EXTERN PetscErrorCode PetscDLSym(PetscDLHandle,const char[],void **);
1344 PETSC_EXTERN PetscErrorCode PetscDLAddr(void (*)(void), char **);
1345 #ifdef PETSC_HAVE_CXX
1346 PETSC_EXTERN PetscErrorCode PetscDemangleSymbol(const char *, char **);
1347 #endif
1348 
1349 #if defined(PETSC_USE_DEBUG)
1350 PETSC_EXTERN PetscErrorCode PetscMallocGetStack(void*,PetscStack**);
1351 #endif
1352 PETSC_EXTERN PetscErrorCode PetscObjectsDump(FILE*,PetscBool);
1353 
1354 PETSC_EXTERN PetscErrorCode PetscObjectListDestroy(PetscObjectList*);
1355 PETSC_EXTERN PetscErrorCode PetscObjectListFind(PetscObjectList,const char[],PetscObject*);
1356 PETSC_EXTERN PetscErrorCode PetscObjectListReverseFind(PetscObjectList,PetscObject,char**,PetscBool*);
1357 PETSC_EXTERN PetscErrorCode PetscObjectListAdd(PetscObjectList *,const char[],PetscObject);
1358 PETSC_EXTERN PetscErrorCode PetscObjectListRemoveReference(PetscObjectList *,const char[]);
1359 PETSC_EXTERN PetscErrorCode PetscObjectListDuplicate(PetscObjectList,PetscObjectList *);
1360 
1361 /*
1362     Dynamic library lists. Lists of names of routines in objects or in dynamic
1363   link libraries that will be loaded as needed.
1364 */
1365 
1366 #define PetscFunctionListAdd(list,name,fptr) PetscFunctionListAdd_Private((list),(name),(PetscVoidFunction)(fptr))
1367 PETSC_EXTERN PetscErrorCode PetscFunctionListAdd_Private(PetscFunctionList*,const char[],void (*)(void));
1368 PETSC_EXTERN PetscErrorCode PetscFunctionListDestroy(PetscFunctionList*);
1369 #define PetscFunctionListFind(list,name,fptr) PetscFunctionListFind_Private((list),(name),(PetscVoidFunction*)(fptr))
1370 PETSC_EXTERN PetscErrorCode PetscFunctionListFind_Private(PetscFunctionList,const char[],void (**)(void));
1371 PETSC_EXTERN PetscErrorCode PetscFunctionListPrintTypes(MPI_Comm,FILE*,const char[],const char[],const char[],const char[],PetscFunctionList,const char[],const char[]);
1372 PETSC_EXTERN PetscErrorCode PetscFunctionListDuplicate(PetscFunctionList,PetscFunctionList *);
1373 PETSC_EXTERN PetscErrorCode PetscFunctionListView(PetscFunctionList,PetscViewer);
1374 PETSC_EXTERN PetscErrorCode PetscFunctionListGet(PetscFunctionList,const char ***,int*);
1375 
1376 PETSC_EXTERN PetscDLLibrary  PetscDLLibrariesLoaded;
1377 PETSC_EXTERN PetscErrorCode PetscDLLibraryAppend(MPI_Comm,PetscDLLibrary *,const char[]);
1378 PETSC_EXTERN PetscErrorCode PetscDLLibraryPrepend(MPI_Comm,PetscDLLibrary *,const char[]);
1379 PETSC_EXTERN PetscErrorCode PetscDLLibrarySym(MPI_Comm,PetscDLLibrary *,const char[],const char[],void **);
1380 PETSC_EXTERN PetscErrorCode PetscDLLibraryPrintPath(PetscDLLibrary);
1381 PETSC_EXTERN PetscErrorCode PetscDLLibraryRetrieve(MPI_Comm,const char[],char *,size_t,PetscBool  *);
1382 PETSC_EXTERN PetscErrorCode PetscDLLibraryOpen(MPI_Comm,const char[],PetscDLLibrary *);
1383 PETSC_EXTERN PetscErrorCode PetscDLLibraryClose(PetscDLLibrary);
1384 
1385 /*
1386      Useful utility routines
1387 */
1388 PETSC_EXTERN PetscErrorCode PetscSplitOwnership(MPI_Comm,PetscInt*,PetscInt*);
1389 PETSC_EXTERN PetscErrorCode PetscSplitOwnershipBlock(MPI_Comm,PetscInt,PetscInt*,PetscInt*);
1390 PETSC_EXTERN PetscErrorCode PetscSplitOwnershipEqual(MPI_Comm,PetscInt*,PetscInt*);
1391 PETSC_EXTERN PetscErrorCode PetscSequentialPhaseBegin(MPI_Comm,PetscMPIInt);
1392 PETSC_EXTERN PetscErrorCode PetscSequentialPhaseEnd(MPI_Comm,PetscMPIInt);
1393 PETSC_EXTERN PetscErrorCode PetscBarrier(PetscObject);
1394 PETSC_EXTERN PetscErrorCode PetscMPIDump(FILE*);
1395 PETSC_EXTERN PetscErrorCode PetscGlobalMinMaxInt(MPI_Comm,const PetscInt[2],PetscInt[2]);
1396 PETSC_EXTERN PetscErrorCode PetscGlobalMinMaxReal(MPI_Comm,const PetscReal[2],PetscReal[2]);
1397 
1398 /*MC
1399     PetscNot - negates a logical type value and returns result as a PetscBool
1400 
1401     Notes:
1402     This is useful in cases like
1403 $     int        *a;
1404 $     PetscBool  flag = PetscNot(a)
1405      where !a would not return a PetscBool because we cannot provide a cast from int to PetscBool in C.
1406 
1407     Level: beginner
1408 
1409     .seealso : PetscBool, PETSC_TRUE, PETSC_FALSE
1410 M*/
1411 #define PetscNot(a) ((a) ? PETSC_FALSE : PETSC_TRUE)
1412 
1413 /*MC
1414     PetscHelpPrintf - Prints help messages.
1415 
1416    Synopsis:
1417     #include <petscsys.h>
1418      PetscErrorCode (*PetscHelpPrintf)(MPI_Comm comm, const char format[],args);
1419 
1420     Collective on comm
1421 
1422     Input Parameters:
1423 +  comm - the MPI communicator over which the help message is printed
1424 .  format - the usual printf() format string
1425 -  args - arguments to be printed
1426 
1427    Level: developer
1428 
1429    Fortran Note:
1430      This routine is not supported in Fortran.
1431 
1432    Note:
1433      You can change how help messages are printed by replacing the function pointer with a function that does not simply write to stdout.
1434 
1435       To use, write your own function, for example,
1436 $PetscErrorCode mypetschelpprintf(MPI_Comm comm,const char format[],....)
1437 ${
1438 $ PetscFunctionReturn(0);
1439 $}
1440 then do the assigment
1441 $    PetscHelpPrintf = mypetschelpprintf;
1442    You can do the assignment before PetscInitialize().
1443 
1444   The default routine used is called PetscHelpPrintfDefault().
1445 
1446 .seealso: PetscFPrintf(), PetscSynchronizedPrintf(), PetscErrorPrintf()
1447 M*/
1448 PETSC_EXTERN PetscErrorCode (*PetscHelpPrintf)(MPI_Comm,const char[],...) PETSC_ATTRIBUTE_FORMAT(2,3);
1449 
1450 /*
1451      Defines PETSc profiling.
1452 */
1453 #include <petsclog.h>
1454 
1455 /*
1456       Simple PETSc parallel IO for ASCII printing
1457 */
1458 PETSC_EXTERN PetscErrorCode PetscFixFilename(const char[],char[]);
1459 PETSC_EXTERN PetscErrorCode PetscFOpen(MPI_Comm,const char[],const char[],FILE**);
1460 PETSC_EXTERN PetscErrorCode PetscFClose(MPI_Comm,FILE*);
1461 PETSC_EXTERN PetscErrorCode PetscFPrintf(MPI_Comm,FILE*,const char[],...) PETSC_ATTRIBUTE_FORMAT(3,4);
1462 PETSC_EXTERN PetscErrorCode PetscPrintf(MPI_Comm,const char[],...) PETSC_ATTRIBUTE_FORMAT(2,3);
1463 PETSC_EXTERN PetscErrorCode PetscSNPrintf(char*,size_t,const char [],...) PETSC_ATTRIBUTE_FORMAT(3,4);
1464 PETSC_EXTERN PetscErrorCode PetscSNPrintfCount(char*,size_t,const char [],size_t*,...) PETSC_ATTRIBUTE_FORMAT(3,5);
1465 PETSC_EXTERN PetscErrorCode PetscFormatRealArray(char[],size_t,const char*,PetscInt,const PetscReal[]);
1466 
1467 PETSC_EXTERN PetscErrorCode PetscErrorPrintfDefault(const char [],...) PETSC_ATTRIBUTE_FORMAT(1,2);
1468 PETSC_EXTERN PetscErrorCode PetscErrorPrintfNone(const char [],...) PETSC_ATTRIBUTE_FORMAT(1,2);
1469 PETSC_EXTERN PetscErrorCode PetscHelpPrintfDefault(MPI_Comm,const char [],...) PETSC_ATTRIBUTE_FORMAT(2,3);
1470 
1471 PETSC_EXTERN PetscErrorCode PetscFormatConvertGetSize(const char*,size_t*);
1472 PETSC_EXTERN PetscErrorCode PetscFormatConvert(const char*,char *);
1473 
1474 #if defined(PETSC_HAVE_POPEN)
1475 PETSC_EXTERN PetscErrorCode PetscPOpen(MPI_Comm,const char[],const char[],const char[],FILE **);
1476 PETSC_EXTERN PetscErrorCode PetscPClose(MPI_Comm,FILE*);
1477 PETSC_EXTERN PetscErrorCode PetscPOpenSetMachine(const char[]);
1478 #endif
1479 
1480 PETSC_EXTERN PetscErrorCode PetscSynchronizedPrintf(MPI_Comm,const char[],...) PETSC_ATTRIBUTE_FORMAT(2,3);
1481 PETSC_EXTERN PetscErrorCode PetscSynchronizedFPrintf(MPI_Comm,FILE*,const char[],...) PETSC_ATTRIBUTE_FORMAT(3,4);
1482 PETSC_EXTERN PetscErrorCode PetscSynchronizedFlush(MPI_Comm,FILE*);
1483 PETSC_EXTERN PetscErrorCode PetscSynchronizedFGets(MPI_Comm,FILE*,size_t,char[]);
1484 PETSC_EXTERN PetscErrorCode PetscStartMatlab(MPI_Comm,const char[],const char[],FILE**);
1485 PETSC_EXTERN PetscErrorCode PetscStartJava(MPI_Comm,const char[],const char[],FILE**);
1486 PETSC_EXTERN PetscErrorCode PetscGetPetscDir(const char*[]);
1487 
1488 PETSC_EXTERN PetscClassId PETSC_CONTAINER_CLASSID;
1489 PETSC_EXTERN PetscErrorCode PetscContainerGetPointer(PetscContainer,void**);
1490 PETSC_EXTERN PetscErrorCode PetscContainerSetPointer(PetscContainer,void*);
1491 PETSC_EXTERN PetscErrorCode PetscContainerDestroy(PetscContainer*);
1492 PETSC_EXTERN PetscErrorCode PetscContainerCreate(MPI_Comm,PetscContainer*);
1493 PETSC_EXTERN PetscErrorCode PetscContainerSetUserDestroy(PetscContainer,PetscErrorCode (*)(void*));
1494 PETSC_EXTERN PetscErrorCode PetscContainerUserDestroyDefault(void*);
1495 
1496 /*
1497    For use in debuggers
1498 */
1499 PETSC_EXTERN PetscMPIInt PetscGlobalRank;
1500 PETSC_EXTERN PetscMPIInt PetscGlobalSize;
1501 PETSC_EXTERN PetscErrorCode PetscIntView(PetscInt,const PetscInt[],PetscViewer);
1502 PETSC_EXTERN PetscErrorCode PetscRealView(PetscInt,const PetscReal[],PetscViewer);
1503 PETSC_EXTERN PetscErrorCode PetscScalarView(PetscInt,const PetscScalar[],PetscViewer);
1504 
1505 #include <stddef.h>
1506 #include <string.h>             /* for memcpy, memset */
1507 #include <stdlib.h>
1508 
1509 #if defined(PETSC_HAVE_XMMINTRIN_H) && !defined(__CUDACC__)
1510 #include <xmmintrin.h>
1511 #endif
1512 
1513 /*@C
1514    PetscMemmove - Copies n bytes, beginning at location b, to the space
1515    beginning at location a. Copying  between regions that overlap will
1516    take place correctly. Use PetscMemcpy() if the locations do not overlap
1517 
1518    Not Collective
1519 
1520    Input Parameters:
1521 +  b - pointer to initial memory space
1522 .  a - pointer to copy space
1523 -  n - length (in bytes) of space to copy
1524 
1525    Level: intermediate
1526 
1527    Note:
1528    PetscArraymove() is preferred
1529    This routine is analogous to memmove().
1530 
1531    Developers Note: This is inlined for performance
1532 
1533 .seealso: PetscMemcpy(), PetscMemcmp(), PetscArrayzero(), PetscMemzero(), PetscArraycmp(), PetscArraycpy(), PetscStrallocpy(),
1534           PetscArraymove()
1535 @*/
1536 static inline PetscErrorCode PetscMemmove(void *a,const void *b,size_t n)
1537 {
1538   PetscFunctionBegin;
1539   if (n > 0) {
1540     PetscCheck(a,PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to copy to null pointer");
1541     PetscCheck(b,PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to copy from a null pointer");
1542   }
1543 #if !defined(PETSC_HAVE_MEMMOVE)
1544   if (a < b) {
1545     if (a <= b - n) memcpy(a,b,n);
1546     else {
1547       memcpy(a,b,(int)(b - a));
1548       PetscMemmove(b,b + (int)(b - a),n - (int)(b - a));
1549     }
1550   } else {
1551     if (b <= a - n) memcpy(a,b,n);
1552     else {
1553       memcpy(b + n,b + (n - (int)(a - b)),(int)(a - b));
1554       PetscMemmove(a,b,n - (int)(a - b));
1555     }
1556   }
1557 #else
1558   memmove((char*)(a),(char*)(b),n);
1559 #endif
1560   PetscFunctionReturn(0);
1561 }
1562 
1563 /*@C
1564    PetscMemcpy - Copies n bytes, beginning at location b, to the space
1565    beginning at location a. The two memory regions CANNOT overlap, use
1566    PetscMemmove() in that case.
1567 
1568    Not Collective
1569 
1570    Input Parameters:
1571 +  b - pointer to initial memory space
1572 -  n - length (in bytes) of space to copy
1573 
1574    Output Parameter:
1575 .  a - pointer to copy space
1576 
1577    Level: intermediate
1578 
1579    Compile Option:
1580     PETSC_PREFER_DCOPY_FOR_MEMCPY will cause the BLAS dcopy() routine to be used
1581                                   for memory copies on double precision values.
1582     PETSC_PREFER_COPY_FOR_MEMCPY will cause C code to be used
1583                                   for memory copies on double precision values.
1584     PETSC_PREFER_FORTRAN_FORMEMCPY will cause Fortran code to be used
1585                                   for memory copies on double precision values.
1586 
1587    Note:
1588    Prefer PetscArraycpy()
1589    This routine is analogous to memcpy().
1590    Not available from Fortran
1591 
1592    Developer Note: this is inlined for fastest performance
1593 
1594 .seealso: PetscMemzero(), PetscMemcmp(), PetscArrayzero(), PetscArraycmp(), PetscArraycpy(), PetscMemmove(), PetscStrallocpy()
1595 
1596 @*/
1597 static inline PetscErrorCode PetscMemcpy(void *a,const void *b,size_t n)
1598 {
1599 #if defined(PETSC_USE_DEBUG)
1600   size_t al = (size_t) a,bl = (size_t) b;
1601   size_t nl = (size_t) n;
1602   PetscFunctionBegin;
1603   if (n > 0) {
1604     PetscCheck(b,PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to copy from a null pointer");
1605     PetscCheck(a,PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to copy to a null pointer");
1606   }
1607 #else
1608   PetscFunctionBegin;
1609 #endif
1610   if (a != b && n > 0) {
1611 #if defined(PETSC_USE_DEBUG)
1612     PetscCheck(!((al > bl && (al - bl) < nl) || (bl - al) < nl),PETSC_COMM_SELF,PETSC_ERR_ARG_INCOMP,"Memory regions overlap: either use PetscMemmov()\n\
1613               or make sure your copy regions and lengths are correct. \n\
1614               Length (bytes) %ld first address %ld second address %ld",nl,al,bl);
1615 #endif
1616 #if (defined(PETSC_PREFER_DCOPY_FOR_MEMCPY) || defined(PETSC_PREFER_COPY_FOR_MEMCPY) || defined(PETSC_PREFER_FORTRAN_FORMEMCPY))
1617    if (!(a % sizeof(PetscScalar)) && !(n % sizeof(PetscScalar))) {
1618       size_t len = n/sizeof(PetscScalar);
1619 #if defined(PETSC_PREFER_DCOPY_FOR_MEMCPY)
1620       PetscBLASInt one = 1,blen;
1621       PetscCall(PetscBLASIntCast(len,&blen));
1622       PetscStackCallBLAS("BLAScopy",BLAScopy_(&blen,(PetscScalar *)b,&one,(PetscScalar *)a,&one));
1623 #elif defined(PETSC_PREFER_FORTRAN_FORMEMCPY)
1624       fortrancopy_(&len,(PetscScalar*)b,(PetscScalar*)a);
1625 #else
1626       PetscScalar *x = (PetscScalar*)b, *y = (PetscScalar*)a;
1627       for (size_t i=0; i<len; i++) y[i] = x[i];
1628 #endif
1629     } else {
1630       memcpy((char*)(a),(char*)(b),n);
1631     }
1632 #else
1633     memcpy((char*)(a),(char*)(b),n);
1634 #endif
1635   }
1636   PetscFunctionReturn(0);
1637 }
1638 
1639 /*@C
1640    PetscMemzero - Zeros the specified memory.
1641 
1642    Not Collective
1643 
1644    Input Parameters:
1645 +  a - pointer to beginning memory location
1646 -  n - length (in bytes) of memory to initialize
1647 
1648    Level: intermediate
1649 
1650    Compile Option:
1651    PETSC_PREFER_BZERO - on certain machines (the IBM RS6000) the bzero() routine happens
1652   to be faster than the memset() routine. This flag causes the bzero() routine to be used.
1653 
1654    Not available from Fortran
1655    Prefer PetscArrayzero()
1656 
1657    Developer Note: this is inlined for fastest performance
1658 
1659 .seealso: PetscMemcpy(), PetscMemcmp(), PetscArrayzero(), PetscArraycmp(), PetscArraycpy(), PetscMemmove(), PetscStrallocpy()
1660 @*/
1661 static inline PetscErrorCode PetscMemzero(void *a,size_t n)
1662 {
1663   if (n > 0) {
1664 #if defined(PETSC_USE_DEBUG)
1665     PetscCheck(a,PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to zero at a null pointer with %zu bytes",n);
1666 #endif
1667 #if defined(PETSC_PREFER_ZERO_FOR_MEMZERO)
1668     if (!(((long) a) % sizeof(PetscScalar)) && !(n % sizeof(PetscScalar))) {
1669       size_t      i,len = n/sizeof(PetscScalar);
1670       PetscScalar *x = (PetscScalar*)a;
1671       for (i=0; i<len; i++) x[i] = 0.0;
1672     } else {
1673 #elif defined(PETSC_PREFER_FORTRAN_FOR_MEMZERO)
1674     if (!(((long) a) % sizeof(PetscScalar)) && !(n % sizeof(PetscScalar))) {
1675       PetscInt len = n/sizeof(PetscScalar);
1676       fortranzero_(&len,(PetscScalar*)a);
1677     } else {
1678 #endif
1679 #if defined(PETSC_PREFER_BZERO)
1680       bzero((char *)a,n);
1681 #else
1682       memset((char*)a,0,n);
1683 #endif
1684 #if defined(PETSC_PREFER_ZERO_FOR_MEMZERO) || defined(PETSC_PREFER_FORTRAN_FOR_MEMZERO)
1685     }
1686 #endif
1687   }
1688   return 0;
1689 }
1690 
1691 /*MC
1692    PetscArraycmp - Compares two arrays in memory.
1693 
1694    Synopsis:
1695     #include <petscsys.h>
1696     PetscErrorCode PetscArraycmp(const anytype *str1,const anytype *str2,size_t cnt,PetscBool *e)
1697 
1698    Not Collective
1699 
1700    Input Parameters:
1701 +  str1 - First array
1702 .  str2 - Second array
1703 -  cnt  - Count of the array, not in bytes, but number of entries in the arrays
1704 
1705    Output Parameters:
1706 .   e - PETSC_TRUE if equal else PETSC_FALSE.
1707 
1708    Level: intermediate
1709 
1710    Note:
1711    This routine is a preferred replacement to PetscMemcmp()
1712    The arrays must be of the same type
1713 
1714 .seealso: PetscMemcpy(), PetscMemcmp(), PetscArrayzero(), PetscMemzero(), PetscArraycpy(), PetscMemmove(), PetscStrallocpy(),
1715           PetscArraymove()
1716 M*/
1717 #define  PetscArraycmp(str1,str2,cnt,e) ((sizeof(*(str1)) != sizeof(*(str2))) || PetscMemcmp(str1,str2,(size_t)(cnt)*sizeof(*(str1)),e))
1718 
1719 /*MC
1720    PetscArraymove - Copies from one array in memory to another, the arrays may overlap. Use PetscArraycpy() when the arrays
1721                     do not overlap
1722 
1723    Synopsis:
1724     #include <petscsys.h>
1725     PetscErrorCode PetscArraymove(anytype *str1,const anytype *str2,size_t cnt)
1726 
1727    Not Collective
1728 
1729    Input Parameters:
1730 +  str1 - First array
1731 .  str2 - Second array
1732 -  cnt  - Count of the array, not in bytes, but number of entries in the arrays
1733 
1734    Level: intermediate
1735 
1736    Note:
1737    This routine is a preferred replacement to PetscMemmove()
1738    The arrays must be of the same type
1739 
1740 .seealso: PetscMemcpy(), PetscMemcmp(), PetscArrayzero(), PetscMemzero(), PetscArraycpy(), PetscMemmove(), PetscArraycmp(), PetscStrallocpy()
1741 M*/
1742 #define  PetscArraymove(str1,str2,cnt) ((sizeof(*(str1)) != sizeof(*(str2))) || PetscMemmove(str1,str2,(size_t)(cnt)*sizeof(*(str1))))
1743 
1744 /*MC
1745    PetscArraycpy - Copies from one array in memory to another
1746 
1747    Synopsis:
1748     #include <petscsys.h>
1749     PetscErrorCode PetscArraycpy(anytype *str1,const anytype *str2,size_t cnt)
1750 
1751    Not Collective
1752 
1753    Input Parameters:
1754 +  str1 - First array (destination)
1755 .  str2 - Second array (source)
1756 -  cnt  - Count of the array, not in bytes, but number of entries in the arrays
1757 
1758    Level: intermediate
1759 
1760    Note:
1761    This routine is a preferred replacement to PetscMemcpy()
1762    The arrays must be of the same type
1763 
1764 .seealso: PetscMemcpy(), PetscMemcmp(), PetscArrayzero(), PetscMemzero(), PetscArraymove(), PetscMemmove(), PetscArraycmp(), PetscStrallocpy()
1765 M*/
1766 #define  PetscArraycpy(str1,str2,cnt) ((sizeof(*(str1)) != sizeof(*(str2))) || PetscMemcpy(str1,str2,(size_t)(cnt)*sizeof(*(str1))))
1767 
1768 /*MC
1769    PetscArrayzero - Zeros an array in memory.
1770 
1771    Synopsis:
1772     #include <petscsys.h>
1773     PetscErrorCode PetscArrayzero(anytype *str1,size_t cnt)
1774 
1775    Not Collective
1776 
1777    Input Parameters:
1778 +  str1 - array
1779 -  cnt  - Count of the array, not in bytes, but number of entries in the array
1780 
1781    Level: intermediate
1782 
1783    Note:
1784    This routine is a preferred replacement to PetscMemzero()
1785 
1786 .seealso: PetscMemcpy(), PetscMemcmp(), PetscMemzero(), PetscArraycmp(), PetscArraycpy(), PetscMemmove(), PetscStrallocpy(), PetscArraymove()
1787 M*/
1788 #define  PetscArrayzero(str1,cnt) PetscMemzero(str1,(size_t)(cnt)*sizeof(*(str1)))
1789 
1790 /*MC
1791    PetscPrefetchBlock - Prefetches a block of memory
1792 
1793    Synopsis:
1794     #include <petscsys.h>
1795     void PetscPrefetchBlock(const anytype *a,size_t n,int rw,int t)
1796 
1797    Not Collective
1798 
1799    Input Parameters:
1800 +  a - pointer to first element to fetch (any type but usually PetscInt or PetscScalar)
1801 .  n - number of elements to fetch
1802 .  rw - 1 if the memory will be written to, otherwise 0 (ignored by many processors)
1803 -  t - temporal locality (PETSC_PREFETCH_HINT_{NTA,T0,T1,T2}), see note
1804 
1805    Level: developer
1806 
1807    Notes:
1808    The last two arguments (rw and t) must be compile-time constants.
1809 
1810    Adopting Intel's x86/x86-64 conventions, there are four levels of temporal locality.  Not all architectures offer
1811    equivalent locality hints, but the following macros are always defined to their closest analogue.
1812 +  PETSC_PREFETCH_HINT_NTA - Non-temporal.  Prefetches directly to L1, evicts to memory (skips higher level cache unless it was already there when prefetched).
1813 .  PETSC_PREFETCH_HINT_T0 - Fetch to all levels of cache and evict to the closest level.  Use this when the memory will be reused regularly despite necessary eviction from L1.
1814 .  PETSC_PREFETCH_HINT_T1 - Fetch to level 2 and higher (not L1).
1815 -  PETSC_PREFETCH_HINT_T2 - Fetch to high-level cache only.  (On many systems, T0 and T1 are equivalent.)
1816 
1817    This function does nothing on architectures that do not support prefetch and never errors (even if passed an invalid
1818    address).
1819 
1820 M*/
1821 #define PetscPrefetchBlock(a,n,rw,t) do {                               \
1822     const char *_p = (const char*)(a),*_end = (const char*)((a)+(n));   \
1823     for (; _p < _end; _p += PETSC_LEVEL1_DCACHE_LINESIZE) PETSC_Prefetch(_p,(rw),(t)); \
1824   } while (0)
1825 
1826 /*
1827       Determine if some of the kernel computation routines use
1828    Fortran (rather than C) for the numerical calculations. On some machines
1829    and compilers (like complex numbers) the Fortran version of the routines
1830    is faster than the C/C++ versions. The flag --with-fortran-kernels
1831    should be used with ./configure to turn these on.
1832 */
1833 #if defined(PETSC_USE_FORTRAN_KERNELS)
1834 
1835 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTCRL)
1836 #define PETSC_USE_FORTRAN_KERNEL_MULTCRL
1837 #endif
1838 
1839 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTAIJPERM)
1840 #define PETSC_USE_FORTRAN_KERNEL_MULTAIJPERM
1841 #endif
1842 
1843 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTAIJ)
1844 #define PETSC_USE_FORTRAN_KERNEL_MULTAIJ
1845 #endif
1846 
1847 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTTRANSPOSEAIJ)
1848 #define PETSC_USE_FORTRAN_KERNEL_MULTTRANSPOSEAIJ
1849 #endif
1850 
1851 #if !defined(PETSC_USE_FORTRAN_KERNEL_NORM)
1852 #define PETSC_USE_FORTRAN_KERNEL_NORM
1853 #endif
1854 
1855 #if !defined(PETSC_USE_FORTRAN_KERNEL_MAXPY)
1856 #define PETSC_USE_FORTRAN_KERNEL_MAXPY
1857 #endif
1858 
1859 #if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ)
1860 #define PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ
1861 #endif
1862 
1863 #if !defined(PETSC_USE_FORTRAN_KERNEL_RELAXAIJ)
1864 #define PETSC_USE_FORTRAN_KERNEL_RELAXAIJ
1865 #endif
1866 
1867 #if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ)
1868 #define PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ
1869 #endif
1870 
1871 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ)
1872 #define PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ
1873 #endif
1874 
1875 #if !defined(PETSC_USE_FORTRAN_KERNEL_MDOT)
1876 #define PETSC_USE_FORTRAN_KERNEL_MDOT
1877 #endif
1878 
1879 #if !defined(PETSC_USE_FORTRAN_KERNEL_XTIMESY)
1880 #define PETSC_USE_FORTRAN_KERNEL_XTIMESY
1881 #endif
1882 
1883 #if !defined(PETSC_USE_FORTRAN_KERNEL_AYPX)
1884 #define PETSC_USE_FORTRAN_KERNEL_AYPX
1885 #endif
1886 
1887 #if !defined(PETSC_USE_FORTRAN_KERNEL_WAXPY)
1888 #define PETSC_USE_FORTRAN_KERNEL_WAXPY
1889 #endif
1890 
1891 #endif
1892 
1893 /*
1894     Macros for indicating code that should be compiled with a C interface,
1895    rather than a C++ interface. Any routines that are dynamically loaded
1896    (such as the PCCreate_XXX() routines) must be wrapped so that the name
1897    mangler does not change the functions symbol name. This just hides the
1898    ugly extern "C" {} wrappers.
1899 */
1900 #if defined(__cplusplus)
1901 #  define EXTERN_C_BEGIN extern "C" {
1902 #  define EXTERN_C_END }
1903 #else
1904 #  define EXTERN_C_BEGIN
1905 #  define EXTERN_C_END
1906 #endif
1907 
1908 /* --------------------------------------------------------------------*/
1909 
1910 /*MC
1911     MPI_Comm - the basic object used by MPI to determine which processes are involved in a
1912         communication
1913 
1914    Level: beginner
1915 
1916    Note: This manual page is a place-holder because MPICH does not have a manual page for MPI_Comm
1917 
1918 .seealso: PETSC_COMM_WORLD, PETSC_COMM_SELF
1919 M*/
1920 
1921 #if defined(PETSC_HAVE_MPIIO)
1922 PETSC_EXTERN PetscErrorCode MPIU_File_write_all(MPI_File,void*,PetscMPIInt,MPI_Datatype,MPI_Status*);
1923 PETSC_EXTERN PetscErrorCode MPIU_File_read_all(MPI_File,void*,PetscMPIInt,MPI_Datatype,MPI_Status*);
1924 PETSC_EXTERN PetscErrorCode MPIU_File_write_at(MPI_File,MPI_Offset,void*,PetscMPIInt,MPI_Datatype,MPI_Status*);
1925 PETSC_EXTERN PetscErrorCode MPIU_File_read_at(MPI_File,MPI_Offset,void*,PetscMPIInt,MPI_Datatype,MPI_Status*);
1926 PETSC_EXTERN PetscErrorCode MPIU_File_write_at_all(MPI_File,MPI_Offset,void*,PetscMPIInt,MPI_Datatype,MPI_Status*);
1927 PETSC_EXTERN PetscErrorCode MPIU_File_read_at_all(MPI_File,MPI_Offset,void*,PetscMPIInt,MPI_Datatype,MPI_Status*);
1928 #endif
1929 
1930 /* the following petsc_static_inline require petscerror.h */
1931 
1932 /* Limit MPI to 32-bits */
1933 #define PETSC_MPI_INT_MAX  2147483647
1934 #define PETSC_MPI_INT_MIN -2147483647
1935 /* Limit BLAS to 32-bits */
1936 #define PETSC_BLAS_INT_MAX  2147483647
1937 #define PETSC_BLAS_INT_MIN -2147483647
1938 #define PETSC_CUBLAS_INT_MAX  2147483647
1939 
1940 /*@C
1941     PetscIntCast - casts a PetscInt64 (which is 64 bits in size) to a PetscInt (which may be 32 bits in size), generates an
1942          error if the PetscInt is not large enough to hold the number.
1943 
1944    Not Collective
1945 
1946    Input Parameter:
1947 .     a - the PetscInt64 value
1948 
1949    Output Parameter:
1950 .     b - the resulting PetscInt value
1951 
1952    Level: advanced
1953 
1954    Notes: If integers needed for the applications are too large to fit in 32 bit ints you can ./configure using --with-64-bit-indices to make PetscInt use 64 bit ints
1955 
1956    Not available from Fortran
1957 
1958 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscMPIIntCast(), PetscBLASIntCast(), PetscIntMultError(), PetscIntSumError()
1959 @*/
1960 static inline PetscErrorCode PetscIntCast(PetscInt64 a,PetscInt *b)
1961 {
1962   PetscFunctionBegin;
1963 #if !defined(PETSC_USE_64BIT_INDICES)
1964   if (a > PETSC_MAX_INT) {
1965     *b = 0;
1966     SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"%" PetscInt64_FMT " is too big for PetscInt, you may need to ./configure using --with-64-bit-indices",a);
1967   }
1968 #endif
1969   *b = (PetscInt)(a);
1970   PetscFunctionReturn(0);
1971 }
1972 
1973 /*@C
1974     PetscCountCast - casts a PetscCount to a PetscInt (which may be 32 bits in size), generates an
1975          error if the PetscInt is not large enough to hold the number.
1976 
1977    Not Collective
1978 
1979    Input Parameter:
1980 .     a - the PetscCount value
1981 
1982    Output Parameter:
1983 .     b - the resulting PetscInt value
1984 
1985    Level: advanced
1986 
1987    Notes:
1988      If integers needed for the applications are too large to fit in 32 bit ints you can ./configure using --with-64-bit-indices to make PetscInt use 64 bit ints
1989 
1990    Not available from Fortran
1991 
1992 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscMPIIntCast(), PetscBLASIntCast(), PetscIntMultError(), PetscIntSumError(), PetscIntCast()
1993 @*/
1994 static inline PetscErrorCode PetscCountCast(PetscCount a,PetscInt *b)
1995 {
1996   PetscFunctionBegin;
1997   if (sizeof(PetscCount) > sizeof(PetscInt) && a > PETSC_MAX_INT) {
1998     *b = 0;
1999     SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"%" PetscCount_FMT " is too big for PetscInt, you may need to ./configure using --with-64-bit-indices",a);
2000   }
2001   *b = (PetscInt)(a);
2002   PetscFunctionReturn(0);
2003 }
2004 
2005 /*@C
2006     PetscBLASIntCast - casts a PetscInt (which may be 64 bits in size) to a PetscBLASInt (which may be 32 bits in size), generates an
2007          error if the PetscBLASInt is not large enough to hold the number.
2008 
2009    Not Collective
2010 
2011    Input Parameter:
2012 .     a - the PetscInt value
2013 
2014    Output Parameter:
2015 .     b - the resulting PetscBLASInt value
2016 
2017    Level: advanced
2018 
2019    Notes:
2020       Not available from Fortran
2021       Errors if the integer is negative since PETSc calls to BLAS/LAPACK never need to cast negative integer inputs
2022 
2023 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscMPIIntCast(), PetscIntCast(), PetscCountCast()
2024 @*/
2025 static inline PetscErrorCode PetscBLASIntCast(PetscInt a,PetscBLASInt *b)
2026 {
2027   PetscFunctionBegin;
2028   *b = 0;
2029   if (PetscDefined(USE_64BIT_INDICES) && !PetscDefined(HAVE_64BIT_BLAS_INDICES)) {
2030     PetscCheck(a <= PETSC_BLAS_INT_MAX,PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"%" PetscInt_FMT " is too big for BLAS/LAPACK, which is restricted to 32 bit integers. Either you have an invalidly large integer error in your code or you must ./configure PETSc with --with-64-bit-blas-indices for the case you are running",a);
2031   }
2032   PetscCheck(a >= 0,PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Passing negative integer to BLAS/LAPACK routine");
2033   *b = (PetscBLASInt)(a);
2034   PetscFunctionReturn(0);
2035 }
2036 
2037 /*@C
2038     PetscCuBLASIntCast - like PetscBLASIntCast(), but for PetscCuBLASInt.
2039 
2040    Not Collective
2041 
2042    Input Parameter:
2043 .     a - the PetscInt value
2044 
2045    Output Parameter:
2046 .     b - the resulting PetscCuBLASInt value
2047 
2048    Level: advanced
2049 
2050    Notes:
2051       Errors if the integer is negative since PETSc calls to cuBLAS and friends never need to cast negative integer inputs
2052 
2053 .seealso: PetscCuBLASInt, PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscMPIIntCast(), PetscIntCast()
2054 @*/
2055 static inline PetscErrorCode PetscCuBLASIntCast(PetscInt a,PetscCuBLASInt *b)
2056 {
2057   PetscFunctionBegin;
2058   *b = 0;
2059   if (PetscDefined(USE_64BIT_INDICES)) PetscCheck(a <= PETSC_CUBLAS_INT_MAX,PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"%" PetscInt_FMT " is too big for cuBLAS, which is restricted to 32 bit integers.",a);
2060   PetscCheck(a >= 0,PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Passing negative integer to cuBLAS routine");
2061   *b = (PetscCuBLASInt)(a);
2062   PetscFunctionReturn(0);
2063 }
2064 
2065 /*@C
2066     PetscMPIIntCast - casts a PetscInt (which may be 64 bits in size) to a PetscMPIInt (which may be 32 bits in size), generates an
2067          error if the PetscMPIInt is not large enough to hold the number.
2068 
2069    Not Collective
2070 
2071    Input Parameter:
2072 .     a - the PetscInt value
2073 
2074    Output Parameter:
2075 .     b - the resulting PetscMPIInt value
2076 
2077    Level: advanced
2078 
2079    Not available from Fortran
2080 
2081 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscIntCast()
2082 @*/
2083 static inline PetscErrorCode PetscMPIIntCast(PetscInt a,PetscMPIInt *b)
2084 {
2085   PetscFunctionBegin;
2086   *b = 0;
2087   if (PetscDefined(USE_64BIT_INDICES)) PetscCheck(a <= PETSC_MPI_INT_MAX,PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"%" PetscInt_FMT " is too big for MPI buffer length. We currently only support 32 bit integers",a);
2088   *b = (PetscMPIInt)(a);
2089   PetscFunctionReturn(0);
2090 }
2091 
2092 #define PetscInt64Mult(a,b)   ((PetscInt64)(a))*((PetscInt64)(b))
2093 
2094 /*@C
2095 
2096    PetscRealIntMultTruncate - Computes the product of a positive PetscReal and a positive PetscInt and truncates the value to slightly less than the maximal possible value
2097 
2098    Not Collective
2099 
2100    Input Parameters:
2101 +     a - the PetscReal value
2102 -     b - the second value
2103 
2104    Returns:
2105       the result as a PetscInt value
2106 
2107    Use PetscInt64Mult() to compute the product of two PetscInt as a PetscInt64
2108    Use PetscIntMultTruncate() to compute the product of two positive PetscInt and truncate to fit a PetscInt
2109    Use PetscIntMultError() to compute the product of two PetscInt if you wish to generate an error if the result will not fit in a PetscInt
2110 
2111    Developers Note:
2112    We currently assume that PetscInt addition can never overflow, this is obviously wrong but requires many more checks.
2113 
2114    This is used where we compute approximate sizes for workspace and need to insure the workspace is index-able.
2115 
2116    Not available from Fortran
2117 
2118    Level: advanced
2119 
2120 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscInt64Mult(), PetscIntMultError(), PetscIntSumError()
2121 @*/
2122 static inline PetscInt PetscRealIntMultTruncate(PetscReal a,PetscInt b)
2123 {
2124   PetscInt64 r = (PetscInt64)(a*(PetscReal)b);
2125   if (r > PETSC_MAX_INT - 100) r = PETSC_MAX_INT - 100;
2126   return (PetscInt)r;
2127 }
2128 
2129 /*@C
2130 
2131    PetscIntMultTruncate - Computes the product of two positive PetscInt and truncates the value to slightly less than the maximal possible value
2132 
2133    Not Collective
2134 
2135    Input Parameters:
2136 +     a - the PetscInt value
2137 -     b - the second value
2138 
2139    Returns:
2140       the result as a PetscInt value
2141 
2142    Use PetscInt64Mult() to compute the product of two PetscInt as a PetscInt64
2143    Use PetscRealIntMultTruncate() to compute the product of a PetscReal and a PetscInt and truncate to fit a PetscInt
2144    Use PetscIntMultError() to compute the product of two PetscInt if you wish to generate an error if the result will not fit in a PetscInt
2145 
2146    Not available from Fortran
2147 
2148    Developers Note: We currently assume that PetscInt addition can never overflow, this is obviously wrong but requires many more checks.
2149 
2150    This is used where we compute approximate sizes for workspace and need to insure the workspace is index-able.
2151 
2152    Level: advanced
2153 
2154 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscInt64Mult(), PetscIntMultError(), PetscIntSumError()
2155 @*/
2156 static inline PetscInt PetscIntMultTruncate(PetscInt a,PetscInt b)
2157 {
2158   PetscInt64 r = PetscInt64Mult(a,b);
2159   if (r > PETSC_MAX_INT - 100) r = PETSC_MAX_INT - 100;
2160   return (PetscInt)r;
2161 }
2162 
2163 /*@C
2164 
2165    PetscIntSumTruncate - Computes the sum of two positive PetscInt and truncates the value to slightly less than the maximal possible value
2166 
2167    Not Collective
2168 
2169    Input Parameters:
2170 +     a - the PetscInt value
2171 -     b - the second value
2172 
2173    Returns:
2174      the result as a PetscInt value
2175 
2176    Use PetscInt64Mult() to compute the product of two PetscInt as a PetscInt64
2177    Use PetscRealIntMultTruncate() to compute the product of a PetscReal and a PetscInt and truncate to fit a PetscInt
2178    Use PetscIntMultError() to compute the product of two PetscInt if you wish to generate an error if the result will not fit in a PetscInt
2179 
2180    This is used where we compute approximate sizes for workspace and need to insure the workspace is index-able.
2181 
2182    Not available from Fortran
2183 
2184    Level: advanced
2185 
2186 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscInt64Mult(), PetscIntMultError()
2187 @*/
2188 static inline PetscInt PetscIntSumTruncate(PetscInt a,PetscInt b)
2189 {
2190   PetscInt64 r = ((PetscInt64)a) + ((PetscInt64)b);
2191   if (r > PETSC_MAX_INT - 100) r = PETSC_MAX_INT - 100;
2192   return (PetscInt)r;
2193 }
2194 
2195 /*@C
2196 
2197    PetscIntMultError - Computes the product of two positive PetscInt and generates an error with overflow.
2198 
2199    Not Collective
2200 
2201    Input Parameters:
2202 +     a - the PetscInt value
2203 -     b - the second value
2204 
2205    Output Parameter:
2206 .     result - the result as a PetscInt value, or NULL if you do not want the result, you just want to check if it overflows
2207 
2208    Use PetscInt64Mult() to compute the product of two 32 bit PetscInt and store in a PetscInt64
2209    Use PetscIntMultTruncate() to compute the product of two PetscInt and truncate it to fit in a PetscInt
2210 
2211    Not available from Fortran
2212 
2213    Developers Note: We currently assume that PetscInt addition does not overflow, this is obviously wrong but requires many more checks.
2214 
2215    Level: advanced
2216 
2217 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscIntMult64(), PetscIntSumError()
2218 @*/
2219 static inline PetscErrorCode PetscIntMultError(PetscInt a,PetscInt b,PetscInt *result)
2220 {
2221   PetscInt64 r;
2222 
2223   PetscFunctionBegin;
2224   r = PetscInt64Mult(a,b);
2225 #if !defined(PETSC_USE_64BIT_INDICES)
2226   PetscCheck(r <= PETSC_MAX_INT,PETSC_COMM_SELF,PETSC_ERR_SUP,"Product of two integers %d %d overflow, either you have an invalidly large integer error in your code or you must ./configure PETSc with --with-64-bit-indices for the case you are running",a,b);
2227 #endif
2228   if (result) *result = (PetscInt)r;
2229   PetscFunctionReturn(0);
2230 }
2231 
2232 /*@C
2233 
2234    PetscIntSumError - Computes the sum of two positive PetscInt and generates an error with overflow.
2235 
2236    Not Collective
2237 
2238    Input Parameters:
2239 +     a - the PetscInt value
2240 -     b - the second value
2241 
2242    Output Parameter:
2243 .     c - the result as a PetscInt value,  or NULL if you do not want the result, you just want to check if it overflows
2244 
2245    Use PetscInt64Mult() to compute the product of two 32 bit PetscInt and store in a PetscInt64
2246    Use PetscIntMultTruncate() to compute the product of two PetscInt and truncate it to fit in a PetscInt
2247 
2248    Not available from Fortran
2249 
2250    Level: advanced
2251 
2252 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscInt64Mult(), PetscIntMultError()
2253 @*/
2254 static inline PetscErrorCode PetscIntSumError(PetscInt a,PetscInt b,PetscInt *result)
2255 {
2256   PetscInt64 r;
2257 
2258   PetscFunctionBegin;
2259   r  =  ((PetscInt64)a) + ((PetscInt64)b);
2260 #if !defined(PETSC_USE_64BIT_INDICES)
2261   PetscCheck(r <= PETSC_MAX_INT,PETSC_COMM_SELF,PETSC_ERR_SUP,"Sum of two integers %d %d overflow, either you have an invalidly large integer error in your code or you must ./configure PETSc with --with-64-bit-indices for the case you are running",a,b);
2262 #endif
2263   if (result) *result = (PetscInt) r;
2264   PetscFunctionReturn(0);
2265 }
2266 
2267 /*
2268      The IBM include files define hz, here we hide it so that it may be used as a regular user variable.
2269 */
2270 #if defined(hz)
2271 #  undef hz
2272 #endif
2273 
2274 #include <limits.h>
2275 
2276 /* The number of bits in a byte */
2277 
2278 #define PETSC_BITS_PER_BYTE CHAR_BIT
2279 
2280 #if defined(PETSC_HAVE_SYS_TYPES_H)
2281 #  include <sys/types.h>
2282 #endif
2283 
2284 /*MC
2285 
2286     PETSC_VERSION - This manual page provides information about how PETSc documents and uses its version information. This information is available to both C/C++
2287                     and Fortran compilers when petscsys.h is included.
2288 
2289     The current PETSc version and the API for accessing it are defined in petscversion.h
2290 
2291     The complete version number is given as the triple  PETSC_VERSION_MAJOR.PETSC_VERSION_MINOR.PETSC_VERSION_SUBMINOR (in short hand x.y.z)
2292 
2293     A change in the minor version number (y) indicates possible/likely changes in the PETSc API. Note this is different than with the semantic versioning convention
2294     where only a change in the major version number (x) indicates a change in the API.
2295 
2296     A subminor greater than zero indicates a patch release. Version x.y.z maintains source and binary compatibility with version x.y.w for all z and w
2297 
2298     Use the macros PETSC_VERSION_EQ(x,y,z), PETSC_VERSION_LT(x,y,z), PETSC_VERSION_LE(x,y,z), PETSC_VERSION_GT(x,y,z),
2299     PETSC_VERSION_GE(x,y,z) to determine if the current version is equal to, less than, less than or equal to, greater than or greater than or equal to a given
2300     version number (x.y.z).
2301 
2302     PETSC_RELEASE_DATE is the date the x.y version was released (i.e. the version before any patch releases)
2303 
2304     PETSC_VERSION_DATE is the date the x.y.z version was released
2305 
2306     PETSC_VERSION_GIT is the last git commit to the repository given in the form vx.y.z-wwwww
2307 
2308     PETSC_VERSION_DATE_GIT is the date of the last git commit to the repository
2309 
2310     PETSC_VERSION_() is deprecated and will eventually be removed.
2311 
2312     Level: intermediate
2313 
2314 M*/
2315 
2316 PETSC_EXTERN PetscErrorCode PetscGetArchType(char[],size_t);
2317 PETSC_EXTERN PetscErrorCode PetscGetHostName(char[],size_t);
2318 PETSC_EXTERN PetscErrorCode PetscGetUserName(char[],size_t);
2319 PETSC_EXTERN PetscErrorCode PetscGetProgramName(char[],size_t);
2320 PETSC_EXTERN PetscErrorCode PetscSetProgramName(const char[]);
2321 PETSC_EXTERN PetscErrorCode PetscGetDate(char[],size_t);
2322 PETSC_EXTERN PetscErrorCode PetscGetVersion(char[], size_t);
2323 PETSC_EXTERN PetscErrorCode PetscGetVersionNumber(PetscInt*,PetscInt*,PetscInt*,PetscInt*);
2324 
2325 PETSC_EXTERN PetscErrorCode PetscSortedInt(PetscInt,const PetscInt[],PetscBool*);
2326 PETSC_EXTERN PetscErrorCode PetscSortedMPIInt(PetscInt,const PetscMPIInt[],PetscBool*);
2327 PETSC_EXTERN PetscErrorCode PetscSortedReal(PetscInt,const PetscReal[],PetscBool*);
2328 PETSC_EXTERN PetscErrorCode PetscSortInt(PetscInt,PetscInt[]);
2329 PETSC_EXTERN PetscErrorCode PetscSortReverseInt(PetscInt,PetscInt[]);
2330 PETSC_EXTERN PetscErrorCode PetscSortedRemoveDupsInt(PetscInt*,PetscInt[]);
2331 PETSC_EXTERN PetscErrorCode PetscSortedCheckDupsInt(PetscInt,const PetscInt[],PetscBool*);
2332 PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsInt(PetscInt*,PetscInt[]);
2333 PETSC_EXTERN PetscErrorCode PetscCheckDupsInt(PetscInt,const PetscInt[],PetscBool*);
2334 PETSC_EXTERN PetscErrorCode PetscFindInt(PetscInt, PetscInt, const PetscInt[], PetscInt*);
2335 PETSC_EXTERN PetscErrorCode PetscFindMPIInt(PetscMPIInt, PetscInt, const PetscMPIInt[], PetscInt*);
2336 PETSC_EXTERN PetscErrorCode PetscSortIntWithPermutation(PetscInt,const PetscInt[],PetscInt[]);
2337 PETSC_EXTERN PetscErrorCode PetscSortStrWithPermutation(PetscInt,const char*[],PetscInt[]);
2338 PETSC_EXTERN PetscErrorCode PetscSortIntWithArray(PetscInt,PetscInt[],PetscInt[]);
2339 PETSC_EXTERN PetscErrorCode PetscSortIntWithCountArray(PetscCount,PetscInt[],PetscCount[]);
2340 PETSC_EXTERN PetscErrorCode PetscSortIntWithArrayPair(PetscInt,PetscInt[],PetscInt[],PetscInt[]);
2341 PETSC_EXTERN PetscErrorCode PetscSortIntWithIntCountArrayPair(PetscCount,PetscInt[],PetscInt[],PetscCount[]);
2342 PETSC_EXTERN PetscErrorCode PetscSortMPIInt(PetscInt,PetscMPIInt[]);
2343 PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsMPIInt(PetscInt*,PetscMPIInt[]);
2344 PETSC_EXTERN PetscErrorCode PetscSortMPIIntWithArray(PetscMPIInt,PetscMPIInt[],PetscMPIInt[]);
2345 PETSC_EXTERN PetscErrorCode PetscSortMPIIntWithIntArray(PetscMPIInt,PetscMPIInt[],PetscInt[]);
2346 PETSC_EXTERN PetscErrorCode PetscSortIntWithScalarArray(PetscInt,PetscInt[],PetscScalar[]);
2347 PETSC_EXTERN PetscErrorCode PetscSortIntWithDataArray(PetscInt,PetscInt[],void*,size_t,void*);
2348 PETSC_EXTERN PetscErrorCode PetscSortReal(PetscInt,PetscReal[]);
2349 PETSC_EXTERN PetscErrorCode PetscSortRealWithArrayInt(PetscInt,PetscReal[],PetscInt[]);
2350 PETSC_EXTERN PetscErrorCode PetscSortRealWithPermutation(PetscInt,const PetscReal[],PetscInt[]);
2351 PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsReal(PetscInt*,PetscReal[]);
2352 PETSC_EXTERN PetscErrorCode PetscFindReal(PetscReal,PetscInt,const PetscReal[],PetscReal,PetscInt*);
2353 PETSC_EXTERN PetscErrorCode PetscSortSplit(PetscInt,PetscInt,PetscScalar[],PetscInt[]);
2354 PETSC_EXTERN PetscErrorCode PetscSortSplitReal(PetscInt,PetscInt,PetscReal[],PetscInt[]);
2355 PETSC_EXTERN PetscErrorCode PetscProcessTree(PetscInt,const PetscBool [],const PetscInt[],PetscInt*,PetscInt**,PetscInt**,PetscInt**,PetscInt**);
2356 PETSC_EXTERN PetscErrorCode PetscMergeIntArrayPair(PetscInt,const PetscInt[],const PetscInt[],PetscInt,const PetscInt[],const PetscInt[],PetscInt*,PetscInt**,PetscInt**);
2357 PETSC_EXTERN PetscErrorCode PetscMergeIntArray(PetscInt,const PetscInt[],PetscInt,const PetscInt[],PetscInt*,PetscInt**);
2358 PETSC_EXTERN PetscErrorCode PetscMergeMPIIntArray(PetscInt,const PetscMPIInt[],PetscInt,const PetscMPIInt[],PetscInt*,PetscMPIInt**);
2359 PETSC_EXTERN PetscErrorCode PetscParallelSortedInt(MPI_Comm, PetscInt, const PetscInt[], PetscBool *);
2360 
2361 PETSC_EXTERN PetscErrorCode PetscTimSort(PetscInt,void*,size_t,int(*)(const void*,const void*,void*),void*);
2362 PETSC_EXTERN PetscErrorCode PetscIntSortSemiOrdered(PetscInt,PetscInt[]);
2363 PETSC_EXTERN PetscErrorCode PetscMPIIntSortSemiOrdered(PetscInt,PetscMPIInt[]);
2364 PETSC_EXTERN PetscErrorCode PetscRealSortSemiOrdered(PetscInt,PetscReal[]);
2365 PETSC_EXTERN PetscErrorCode PetscTimSortWithArray(PetscInt,void*,size_t,void*,size_t,int(*)(const void*,const void*,void*),void*);
2366 PETSC_EXTERN PetscErrorCode PetscIntSortSemiOrderedWithArray(PetscInt,PetscInt[],PetscInt[]);
2367 PETSC_EXTERN PetscErrorCode PetscMPIIntSortSemiOrderedWithArray(PetscInt,PetscMPIInt[],PetscMPIInt[]);
2368 PETSC_EXTERN PetscErrorCode PetscRealSortSemiOrderedWithArrayInt(PetscInt,PetscReal[],PetscInt[]);
2369 
2370 PETSC_EXTERN PetscErrorCode PetscSetDisplay(void);
2371 PETSC_EXTERN PetscErrorCode PetscGetDisplay(char[],size_t);
2372 
2373 /*J
2374     PetscRandomType - String with the name of a PETSc randomizer
2375 
2376    Level: beginner
2377 
2378    Notes:
2379    To use SPRNG or RANDOM123 you must have ./configure PETSc
2380    with the option --download-sprng or --download-random123
2381 
2382 .seealso: PetscRandomSetType(), PetscRandom, PetscRandomCreate()
2383 J*/
2384 typedef const char* PetscRandomType;
2385 #define PETSCRAND       "rand"
2386 #define PETSCRAND48     "rand48"
2387 #define PETSCSPRNG      "sprng"
2388 #define PETSCRANDER48   "rander48"
2389 #define PETSCRANDOM123  "random123"
2390 #define PETSCCURAND     "curand"
2391 
2392 /* Logging support */
2393 PETSC_EXTERN PetscClassId PETSC_RANDOM_CLASSID;
2394 
2395 PETSC_EXTERN PetscErrorCode PetscRandomInitializePackage(void);
2396 
2397 /* Dynamic creation and loading functions */
2398 PETSC_EXTERN PetscFunctionList PetscRandomList;
2399 
2400 PETSC_EXTERN PetscErrorCode PetscRandomRegister(const char[],PetscErrorCode (*)(PetscRandom));
2401 PETSC_EXTERN PetscErrorCode PetscRandomSetType(PetscRandom,PetscRandomType);
2402 PETSC_EXTERN PetscErrorCode PetscRandomSetFromOptions(PetscRandom);
2403 PETSC_EXTERN PetscErrorCode PetscRandomGetType(PetscRandom,PetscRandomType*);
2404 PETSC_EXTERN PetscErrorCode PetscRandomViewFromOptions(PetscRandom,PetscObject,const char[]);
2405 PETSC_EXTERN PetscErrorCode PetscRandomView(PetscRandom,PetscViewer);
2406 
2407 PETSC_EXTERN PetscErrorCode PetscRandomCreate(MPI_Comm,PetscRandom*);
2408 PETSC_EXTERN PetscErrorCode PetscRandomGetValue(PetscRandom,PetscScalar*);
2409 PETSC_EXTERN PetscErrorCode PetscRandomGetValueReal(PetscRandom,PetscReal*);
2410 PETSC_EXTERN PetscErrorCode PetscRandomGetValues(PetscRandom,PetscInt,PetscScalar*);
2411 PETSC_EXTERN PetscErrorCode PetscRandomGetValuesReal(PetscRandom,PetscInt,PetscReal*);
2412 PETSC_EXTERN PetscErrorCode PetscRandomGetInterval(PetscRandom,PetscScalar*,PetscScalar*);
2413 PETSC_EXTERN PetscErrorCode PetscRandomSetInterval(PetscRandom,PetscScalar,PetscScalar);
2414 PETSC_EXTERN PetscErrorCode PetscRandomSetSeed(PetscRandom,unsigned long);
2415 PETSC_EXTERN PetscErrorCode PetscRandomGetSeed(PetscRandom,unsigned long *);
2416 PETSC_EXTERN PetscErrorCode PetscRandomSeed(PetscRandom);
2417 PETSC_EXTERN PetscErrorCode PetscRandomDestroy(PetscRandom*);
2418 
2419 PETSC_EXTERN PetscErrorCode PetscGetFullPath(const char[],char[],size_t);
2420 PETSC_EXTERN PetscErrorCode PetscGetRelativePath(const char[],char[],size_t);
2421 PETSC_EXTERN PetscErrorCode PetscGetWorkingDirectory(char[],size_t);
2422 PETSC_EXTERN PetscErrorCode PetscGetRealPath(const char[],char[]);
2423 PETSC_EXTERN PetscErrorCode PetscGetHomeDirectory(char[],size_t);
2424 PETSC_EXTERN PetscErrorCode PetscTestFile(const char[],char,PetscBool *);
2425 PETSC_EXTERN PetscErrorCode PetscTestDirectory(const char[],char,PetscBool *);
2426 PETSC_EXTERN PetscErrorCode PetscMkdir(const char[]);
2427 PETSC_EXTERN PetscErrorCode PetscMkdtemp(char[]);
2428 PETSC_EXTERN PetscErrorCode PetscRMTree(const char[]);
2429 
2430 static inline PetscBool PetscBinaryBigEndian(void) {long _petsc_v = 1; return ((char*)&_petsc_v)[0] ? PETSC_FALSE : PETSC_TRUE;}
2431 
2432 PETSC_EXTERN PetscErrorCode PetscBinaryRead(int,void*,PetscInt,PetscInt*,PetscDataType);
2433 PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedRead(MPI_Comm,int,void*,PetscInt,PetscInt*,PetscDataType);
2434 PETSC_EXTERN PetscErrorCode PetscBinaryWrite(int,const void*,PetscInt,PetscDataType);
2435 PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedWrite(MPI_Comm,int,const void*,PetscInt,PetscDataType);
2436 PETSC_EXTERN PetscErrorCode PetscBinaryOpen(const char[],PetscFileMode,int *);
2437 PETSC_EXTERN PetscErrorCode PetscBinaryClose(int);
2438 PETSC_EXTERN PetscErrorCode PetscSharedTmp(MPI_Comm,PetscBool  *);
2439 PETSC_EXTERN PetscErrorCode PetscSharedWorkingDirectory(MPI_Comm,PetscBool  *);
2440 PETSC_EXTERN PetscErrorCode PetscGetTmp(MPI_Comm,char[],size_t);
2441 PETSC_EXTERN PetscErrorCode PetscFileRetrieve(MPI_Comm,const char[],char[],size_t,PetscBool *);
2442 PETSC_EXTERN PetscErrorCode PetscLs(MPI_Comm,const char[],char[],size_t,PetscBool *);
2443 #if defined(PETSC_USE_SOCKET_VIEWER)
2444 PETSC_EXTERN PetscErrorCode PetscOpenSocket(const char[],int,int*);
2445 #endif
2446 
2447 PETSC_EXTERN PetscErrorCode PetscBinarySeek(int,off_t,PetscBinarySeekType,off_t*);
2448 PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedSeek(MPI_Comm,int,off_t,PetscBinarySeekType,off_t*);
2449 PETSC_EXTERN PetscErrorCode PetscByteSwap(void *,PetscDataType,PetscInt);
2450 
2451 PETSC_EXTERN PetscErrorCode PetscSetDebugTerminal(const char[]);
2452 PETSC_EXTERN PetscErrorCode PetscSetDebugger(const char[],PetscBool);
2453 PETSC_EXTERN PetscErrorCode PetscSetDefaultDebugger(void);
2454 PETSC_EXTERN PetscErrorCode PetscSetDebuggerFromString(const char*);
2455 PETSC_EXTERN PetscErrorCode PetscAttachDebugger(void);
2456 PETSC_EXTERN PetscErrorCode PetscStopForDebugger(void);
2457 PETSC_EXTERN PetscErrorCode PetscWaitOnError(void);
2458 
2459 PETSC_EXTERN PetscErrorCode PetscGatherNumberOfMessages(MPI_Comm,const PetscMPIInt[],const PetscMPIInt[],PetscMPIInt*);
2460 PETSC_EXTERN PetscErrorCode PetscGatherMessageLengths(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],PetscMPIInt**,PetscMPIInt**);
2461 PETSC_EXTERN PetscErrorCode PetscGatherMessageLengths2(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],const PetscMPIInt[],PetscMPIInt**,PetscMPIInt**,PetscMPIInt**);
2462 PETSC_EXTERN PetscErrorCode PetscPostIrecvInt(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],const PetscMPIInt[],PetscInt***,MPI_Request**);
2463 PETSC_EXTERN PetscErrorCode PetscPostIrecvScalar(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],const PetscMPIInt[],PetscScalar***,MPI_Request**);
2464 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSided(MPI_Comm,PetscMPIInt,MPI_Datatype,PetscMPIInt,const PetscMPIInt*,const void*,PetscMPIInt*,PetscMPIInt**,void*)
2465   PetscAttrMPIPointerWithType(6,3);
2466 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedF(MPI_Comm,PetscMPIInt,MPI_Datatype,PetscMPIInt,const PetscMPIInt[],const void*,PetscMPIInt*,PetscMPIInt**,void*,PetscMPIInt,
2467                                                     PetscErrorCode (*send)(MPI_Comm,const PetscMPIInt[],PetscMPIInt,PetscMPIInt,void*,MPI_Request[],void*),
2468                                                     PetscErrorCode (*recv)(MPI_Comm,const PetscMPIInt[],PetscMPIInt,void*,MPI_Request[],void*),void *ctx)
2469   PetscAttrMPIPointerWithType(6,3);
2470 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedFReq(MPI_Comm,PetscMPIInt,MPI_Datatype,PetscMPIInt,const PetscMPIInt[],const void*,PetscMPIInt*,PetscMPIInt**,void*,PetscMPIInt,
2471                                                        MPI_Request**,MPI_Request**,
2472                                                        PetscErrorCode (*send)(MPI_Comm,const PetscMPIInt[],PetscMPIInt,PetscMPIInt,void*,MPI_Request[],void*),
2473                                                        PetscErrorCode (*recv)(MPI_Comm,const PetscMPIInt[],PetscMPIInt,void*,MPI_Request[],void*),void *ctx)
2474   PetscAttrMPIPointerWithType(6,3);
2475 
2476 PETSC_EXTERN const char *const PetscBuildTwoSidedTypes[];
2477 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedSetType(MPI_Comm,PetscBuildTwoSidedType);
2478 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedGetType(MPI_Comm,PetscBuildTwoSidedType*);
2479 
2480 PETSC_EXTERN PetscErrorCode PetscSSEIsEnabled(MPI_Comm,PetscBool*,PetscBool*);
2481 
2482 PETSC_EXTERN MPI_Comm PetscObjectComm(PetscObject);
2483 
2484 PETSC_EXTERN const char *const PetscSubcommTypes[];
2485 
2486 struct _n_PetscSubcomm {
2487   MPI_Comm         parent;           /* parent communicator */
2488   MPI_Comm         dupparent;        /* duplicate parent communicator, under which the processors of this subcomm have contiguous rank */
2489   MPI_Comm         child;            /* the sub-communicator */
2490   PetscMPIInt      n;                /* num of subcommunicators under the parent communicator */
2491   PetscMPIInt      color;            /* color of processors belong to this communicator */
2492   PetscMPIInt      *subsize;         /* size of subcommunicator[color] */
2493   PetscSubcommType type;
2494   char             *subcommprefix;
2495 };
2496 
2497 static inline MPI_Comm PetscSubcommParent(PetscSubcomm scomm) {return scomm->parent;}
2498 static inline MPI_Comm PetscSubcommChild(PetscSubcomm scomm) {return scomm->child;}
2499 static inline MPI_Comm PetscSubcommContiguousParent(PetscSubcomm scomm) {return scomm->dupparent;}
2500 PETSC_EXTERN PetscErrorCode PetscSubcommCreate(MPI_Comm,PetscSubcomm*);
2501 PETSC_EXTERN PetscErrorCode PetscSubcommDestroy(PetscSubcomm*);
2502 PETSC_EXTERN PetscErrorCode PetscSubcommSetNumber(PetscSubcomm,PetscInt);
2503 PETSC_EXTERN PetscErrorCode PetscSubcommSetType(PetscSubcomm,PetscSubcommType);
2504 PETSC_EXTERN PetscErrorCode PetscSubcommSetTypeGeneral(PetscSubcomm,PetscMPIInt,PetscMPIInt);
2505 PETSC_EXTERN PetscErrorCode PetscSubcommView(PetscSubcomm,PetscViewer);
2506 PETSC_EXTERN PetscErrorCode PetscSubcommSetFromOptions(PetscSubcomm);
2507 PETSC_EXTERN PetscErrorCode PetscSubcommSetOptionsPrefix(PetscSubcomm,const char[]);
2508 PETSC_EXTERN PetscErrorCode PetscSubcommGetParent(PetscSubcomm,MPI_Comm*);
2509 PETSC_EXTERN PetscErrorCode PetscSubcommGetContiguousParent(PetscSubcomm,MPI_Comm*);
2510 PETSC_EXTERN PetscErrorCode PetscSubcommGetChild(PetscSubcomm,MPI_Comm*);
2511 
2512 PETSC_EXTERN PetscErrorCode PetscHeapCreate(PetscInt,PetscHeap*);
2513 PETSC_EXTERN PetscErrorCode PetscHeapAdd(PetscHeap,PetscInt,PetscInt);
2514 PETSC_EXTERN PetscErrorCode PetscHeapPop(PetscHeap,PetscInt*,PetscInt*);
2515 PETSC_EXTERN PetscErrorCode PetscHeapPeek(PetscHeap,PetscInt*,PetscInt*);
2516 PETSC_EXTERN PetscErrorCode PetscHeapStash(PetscHeap,PetscInt,PetscInt);
2517 PETSC_EXTERN PetscErrorCode PetscHeapUnstash(PetscHeap);
2518 PETSC_EXTERN PetscErrorCode PetscHeapDestroy(PetscHeap*);
2519 PETSC_EXTERN PetscErrorCode PetscHeapView(PetscHeap,PetscViewer);
2520 
2521 PETSC_EXTERN PetscErrorCode PetscProcessPlacementView(PetscViewer);
2522 PETSC_EXTERN PetscErrorCode PetscShmCommGet(MPI_Comm,PetscShmComm*);
2523 PETSC_EXTERN PetscErrorCode PetscShmCommGlobalToLocal(PetscShmComm,PetscMPIInt,PetscMPIInt*);
2524 PETSC_EXTERN PetscErrorCode PetscShmCommLocalToGlobal(PetscShmComm,PetscMPIInt,PetscMPIInt*);
2525 PETSC_EXTERN PetscErrorCode PetscShmCommGetMpiShmComm(PetscShmComm,MPI_Comm*);
2526 
2527 /* routines to better support OpenMP multithreading needs of some PETSc third party libraries */
2528 PETSC_EXTERN PetscErrorCode PetscOmpCtrlCreate(MPI_Comm,PetscInt,PetscOmpCtrl*);
2529 PETSC_EXTERN PetscErrorCode PetscOmpCtrlGetOmpComms(PetscOmpCtrl,MPI_Comm*,MPI_Comm*,PetscBool*);
2530 PETSC_EXTERN PetscErrorCode PetscOmpCtrlDestroy(PetscOmpCtrl*);
2531 PETSC_EXTERN PetscErrorCode PetscOmpCtrlBarrier(PetscOmpCtrl);
2532 PETSC_EXTERN PetscErrorCode PetscOmpCtrlOmpRegionOnMasterBegin(PetscOmpCtrl);
2533 PETSC_EXTERN PetscErrorCode PetscOmpCtrlOmpRegionOnMasterEnd(PetscOmpCtrl);
2534 
2535 PETSC_EXTERN PetscErrorCode PetscSegBufferCreate(size_t,size_t,PetscSegBuffer*);
2536 PETSC_EXTERN PetscErrorCode PetscSegBufferDestroy(PetscSegBuffer*);
2537 PETSC_EXTERN PetscErrorCode PetscSegBufferGet(PetscSegBuffer,size_t,void*);
2538 PETSC_EXTERN PetscErrorCode PetscSegBufferExtractAlloc(PetscSegBuffer,void*);
2539 PETSC_EXTERN PetscErrorCode PetscSegBufferExtractTo(PetscSegBuffer,void*);
2540 PETSC_EXTERN PetscErrorCode PetscSegBufferExtractInPlace(PetscSegBuffer,void*);
2541 PETSC_EXTERN PetscErrorCode PetscSegBufferGetSize(PetscSegBuffer,size_t*);
2542 PETSC_EXTERN PetscErrorCode PetscSegBufferUnuse(PetscSegBuffer,size_t);
2543 
2544 /* Type-safe wrapper to encourage use of PETSC_RESTRICT. Does not use PetscFunctionBegin because the error handling
2545  * prevents the compiler from completely erasing the stub. This is called in inner loops so it has to be as fast as
2546  * possible. */
2547 static inline PetscErrorCode PetscSegBufferGetInts(PetscSegBuffer seg,size_t count,PetscInt *PETSC_RESTRICT *slot) {return PetscSegBufferGet(seg,count,(void**)slot);}
2548 
2549 extern PetscOptionsHelpPrinted PetscOptionsHelpPrintedSingleton;
2550 PETSC_EXTERN PetscErrorCode PetscOptionsHelpPrintedDestroy(PetscOptionsHelpPrinted*);
2551 PETSC_EXTERN PetscErrorCode PetscOptionsHelpPrintedCreate(PetscOptionsHelpPrinted*);
2552 PETSC_EXTERN PetscErrorCode PetscOptionsHelpPrintedCheck(PetscOptionsHelpPrinted,const char*,const char*,PetscBool*);
2553 
2554 #include <stdarg.h>
2555 PETSC_EXTERN PetscErrorCode PetscVSNPrintf(char*,size_t,const char[],size_t*,va_list);
2556 PETSC_EXTERN PetscErrorCode (*PetscVFPrintf)(FILE*,const char[],va_list);
2557 
2558 PETSC_EXTERN PetscSegBuffer PetscCitationsList;
2559 
2560 /*@C
2561       PetscCitationsRegister - Register a bibtex item to obtain credit for an implemented algorithm used in the code.
2562 
2563      Not Collective - only what is registered on rank 0 of PETSC_COMM_WORLD will be printed
2564 
2565      Input Parameters:
2566 +      cite - the bibtex item, formated to displayed on multiple lines nicely
2567 -      set - a boolean variable initially set to PETSC_FALSE; this is used to insure only a single registration of the citation
2568 
2569    Level: intermediate
2570 
2571    Not available from Fortran
2572 
2573      Options Database:
2574 .     -citations [filename]   - print out the bibtex entries for the given computation
2575 @*/
2576 static inline PetscErrorCode PetscCitationsRegister(const char cit[],PetscBool *set)
2577 {
2578   size_t  len;
2579   char   *vstring;
2580 
2581   PetscFunctionBegin;
2582   if (set && *set) PetscFunctionReturn(0);
2583   PetscCall(PetscStrlen(cit,&len));
2584   PetscCall(PetscSegBufferGet(PetscCitationsList,len,&vstring));
2585   PetscCall(PetscArraycpy(vstring,cit,len));
2586   if (set) *set = PETSC_TRUE;
2587   PetscFunctionReturn(0);
2588 }
2589 
2590 PETSC_EXTERN PetscErrorCode PetscURLShorten(const char[],char[],size_t);
2591 PETSC_EXTERN PetscErrorCode PetscGoogleDriveAuthorize(MPI_Comm,char[],char[],size_t);
2592 PETSC_EXTERN PetscErrorCode PetscGoogleDriveRefresh(MPI_Comm,const char[],char[],size_t);
2593 PETSC_EXTERN PetscErrorCode PetscGoogleDriveUpload(MPI_Comm,const char[],const char []);
2594 
2595 PETSC_EXTERN PetscErrorCode PetscBoxAuthorize(MPI_Comm,char[],char[],size_t);
2596 PETSC_EXTERN PetscErrorCode PetscBoxRefresh(MPI_Comm,const char[],char[],char[],size_t);
2597 
2598 PETSC_EXTERN PetscErrorCode PetscGlobusGetTransfers(MPI_Comm,const char[],char[],size_t);
2599 
2600 PETSC_EXTERN PetscErrorCode PetscTextBelt(MPI_Comm,const char[],const char[],PetscBool*);
2601 PETSC_EXTERN PetscErrorCode PetscTellMyCell(MPI_Comm,const char[],const char[],PetscBool*);
2602 
2603 PETSC_EXTERN PetscErrorCode PetscPullJSONValue(const char[],const char[],char[],size_t,PetscBool*);
2604 PETSC_EXTERN PetscErrorCode PetscPushJSONValue(char[],const char[],const char[],size_t);
2605 
2606 #if defined(PETSC_USE_DEBUG)
2607 static inline unsigned int PetscStrHash(const char *str)
2608 {
2609   unsigned int c,hash = 5381;
2610 
2611   while ((c = (unsigned int)*str++)) hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
2612   return hash;
2613 }
2614 
2615 /*MC
2616    MPIU_Allreduce - a PETSc replacement for MPI_Allreduce() that tries to determine if the call from all the MPI processes occur from the
2617                     same place in the PETSc code. This helps to detect bugs where different MPI processes follow different code paths
2618                     resulting in inconsistent and incorrect calls to MPI_Allreduce().
2619 
2620    Collective
2621 
2622    Synopsis:
2623      #include <petscsys.h>
2624      PetscErrorCode MPIU_Allreduce(void *indata,void *outdata,PetscMPIInt count,MPI_Datatype datatype, MPI_Op op, MPI_Comm comm);
2625 
2626    Input Parameters:
2627 +  a - pointer to the input data to be reduced
2628 .  c - the number of MPI data items in a and b
2629 .  d - the MPI datatype, for example MPI_INT
2630 .  e - the MPI operation, for example MPI_SUM
2631 -  fcomm - the MPI communicator on which the operation occurs
2632 
2633    Output Parameter:
2634 .  b - the reduced values
2635 
2636    Notes:
2637      In optimized mode this directly calls MPI_Allreduce()
2638 
2639      This is defined as a macro that can return error codes internally so it cannot be used in a subroutine that returns void.
2640 
2641      The error code this returns should be checked with PetscCall() even though it looks like an MPI function because it always returns PETSc error codes
2642 
2643    Level: developer
2644 
2645 .seealso: MPI_Allreduce()
2646 M*/
2647 #define MPIU_Allreduce(a,b,c,d,e,fcomm) PetscMacroReturnStandard(                           \
2648     PetscMPIInt a_b1[6],a_b2[6];                                                               \
2649     int         _mpiu_allreduce_c_int = (int)c;                                                \
2650     a_b1[0] = -(PetscMPIInt)__LINE__;                          a_b1[1] = -a_b1[0];             \
2651     a_b1[2] = -(PetscMPIInt)PetscStrHash(PETSC_FUNCTION_NAME); a_b1[3] = -a_b1[2];             \
2652     a_b1[4] = -(PetscMPIInt)(c);                               a_b1[5] = -a_b1[4];             \
2653     PetscCallMPI(MPI_Allreduce(a_b1,a_b2,6,MPI_INT,MPI_MAX,fcomm));                               \
2654     PetscCheck(-a_b2[0] == a_b2[1],PETSC_COMM_SELF,PETSC_ERR_PLIB,"MPI_Allreduce() called in different locations (code lines) on different processors"); \
2655     PetscCheck(-a_b2[2] == a_b2[3],PETSC_COMM_SELF,PETSC_ERR_PLIB,"MPI_Allreduce() called in different locations (functions) on different processors"); \
2656     PetscCheck(-a_b2[4] == a_b2[5],PETSC_COMM_SELF,PETSC_ERR_PLIB,"MPI_Allreduce() called with different counts %d on different processors",_mpiu_allreduce_c_int); \
2657     PetscCallMPI(MPI_Allreduce((a),(b),(c),d,e,(fcomm)));                                         \
2658   )
2659 #else
2660 #define MPIU_Allreduce(a,b,c,d,e,fcomm) PetscMacroReturnStandard(PetscCallMPI(MPI_Allreduce((a),(b),(c),d,e,(fcomm))))
2661 #endif
2662 
2663 #if defined(PETSC_HAVE_MPI_PROCESS_SHARED_MEMORY)
2664 PETSC_EXTERN PetscErrorCode MPIU_Win_allocate_shared(MPI_Aint,PetscMPIInt,MPI_Info,MPI_Comm,void*,MPI_Win*);
2665 PETSC_EXTERN PetscErrorCode MPIU_Win_shared_query(MPI_Win,PetscMPIInt,MPI_Aint*,PetscMPIInt*,void*);
2666 #endif
2667 
2668 /* this is a vile hack */
2669 #if defined(PETSC_HAVE_NECMPI)
2670 #if !defined(PETSC_NECMPI_VERSION_MAJOR) ||                              \
2671     !defined(PETSC_NECMPI_VERSION_MINOR) ||                              \
2672     PETSC_NECMPI_VERSION_MAJOR < 2       ||                              \
2673     (PETSC_NECMPI_VERSION_MAJOR == 2 && PETSC_NECMPI_VERSION_MINOR < 18)
2674 #define MPI_Type_free(a) (*(a) = MPI_DATATYPE_NULL,0);
2675 #endif
2676 #endif
2677 
2678 /*
2679     List of external packages and queries on it
2680 */
2681 PETSC_EXTERN PetscErrorCode  PetscHasExternalPackage(const char[],PetscBool*);
2682 
2683 /*
2684  OpenMP support
2685 */
2686 #if defined(_OPENMP)
2687 #define PetscPragmaOMP(...) _Pragma(PetscStringize(omp __VA_ARGS__))
2688 #else // no OpenMP so no threads
2689 #define PetscPragmaOMP(...)
2690 #endif
2691 
2692 #endif
2693