xref: /petsc/include/petscsys.h (revision 91e63d38360eb9bc922f79d792328cc4769c01ac)
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 PetscObjectSetType(PetscObject,const char []);
1266 PETSC_EXTERN PetscErrorCode PetscObjectGetType(PetscObject,const char *[]);
1267 PETSC_EXTERN PetscErrorCode PetscObjectSetName(PetscObject,const char[]);
1268 PETSC_EXTERN PetscErrorCode PetscObjectGetName(PetscObject,const char*[]);
1269 PETSC_EXTERN PetscErrorCode PetscObjectSetTabLevel(PetscObject,PetscInt);
1270 PETSC_EXTERN PetscErrorCode PetscObjectGetTabLevel(PetscObject,PetscInt*);
1271 PETSC_EXTERN PetscErrorCode PetscObjectIncrementTabLevel(PetscObject,PetscObject,PetscInt);
1272 PETSC_EXTERN PetscErrorCode PetscObjectReference(PetscObject);
1273 PETSC_EXTERN PetscErrorCode PetscObjectGetReference(PetscObject,PetscInt*);
1274 PETSC_EXTERN PetscErrorCode PetscObjectDereference(PetscObject);
1275 PETSC_EXTERN PetscErrorCode PetscObjectGetNewTag(PetscObject,PetscMPIInt*);
1276 PETSC_EXTERN PetscErrorCode PetscObjectCompose(PetscObject,const char[],PetscObject);
1277 PETSC_EXTERN PetscErrorCode PetscObjectRemoveReference(PetscObject,const char[]);
1278 PETSC_EXTERN PetscErrorCode PetscObjectQuery(PetscObject,const char[],PetscObject*);
1279 PETSC_EXTERN PetscErrorCode PetscObjectComposeFunction_Private(PetscObject,const char[],void (*)(void));
1280 #define PetscObjectComposeFunction(a,b,d) PetscObjectComposeFunction_Private(a,b,(PetscVoidFunction)(d))
1281 PETSC_EXTERN PetscErrorCode PetscObjectSetFromOptions(PetscObject);
1282 PETSC_EXTERN PetscErrorCode PetscObjectSetUp(PetscObject);
1283 PETSC_EXTERN PetscErrorCode PetscObjectSetPrintedOptions(PetscObject);
1284 PETSC_EXTERN PetscErrorCode PetscObjectInheritPrintedOptions(PetscObject,PetscObject);
1285 PETSC_EXTERN PetscErrorCode PetscCommGetNewTag(MPI_Comm,PetscMPIInt*);
1286 
1287 #include <petscviewertypes.h>
1288 #include <petscoptions.h>
1289 
1290 PETSC_EXTERN PetscErrorCode PetscMallocTraceSet(PetscViewer,PetscBool,PetscLogDouble);
1291 PETSC_EXTERN PetscErrorCode PetscMallocTraceGet(PetscBool*);
1292 
1293 PETSC_EXTERN PetscErrorCode PetscObjectsListGetGlobalNumbering(MPI_Comm,PetscInt,PetscObject*,PetscInt*,PetscInt*);
1294 
1295 PETSC_EXTERN PetscErrorCode PetscMemoryView(PetscViewer,const char[]);
1296 PETSC_EXTERN PetscErrorCode PetscObjectPrintClassNamePrefixType(PetscObject,PetscViewer);
1297 PETSC_EXTERN PetscErrorCode PetscObjectView(PetscObject,PetscViewer);
1298 #define PetscObjectQueryFunction(obj,name,fptr) PetscObjectQueryFunction_Private((obj),(name),(PetscVoidFunction*)(fptr))
1299 PETSC_EXTERN PetscErrorCode PetscObjectQueryFunction_Private(PetscObject,const char[],void (**)(void));
1300 PETSC_EXTERN PetscErrorCode PetscObjectSetOptionsPrefix(PetscObject,const char[]);
1301 PETSC_EXTERN PetscErrorCode PetscObjectAppendOptionsPrefix(PetscObject,const char[]);
1302 PETSC_EXTERN PetscErrorCode PetscObjectPrependOptionsPrefix(PetscObject,const char[]);
1303 PETSC_EXTERN PetscErrorCode PetscObjectGetOptionsPrefix(PetscObject,const char*[]);
1304 PETSC_EXTERN PetscErrorCode PetscObjectChangeTypeName(PetscObject,const char[]);
1305 PETSC_EXTERN PetscErrorCode PetscObjectRegisterDestroy(PetscObject);
1306 PETSC_EXTERN PetscErrorCode PetscObjectRegisterDestroyAll(void);
1307 PETSC_EXTERN PetscErrorCode PetscObjectViewFromOptions(PetscObject,PetscObject,const char[]);
1308 PETSC_EXTERN PetscErrorCode PetscObjectName(PetscObject);
1309 PETSC_EXTERN PetscErrorCode PetscObjectTypeCompare(PetscObject,const char[],PetscBool *);
1310 PETSC_EXTERN PetscErrorCode PetscObjectBaseTypeCompare(PetscObject,const char[],PetscBool *);
1311 PETSC_EXTERN PetscErrorCode PetscObjectTypeCompareAny(PetscObject,PetscBool*,const char[],...);
1312 PETSC_EXTERN PetscErrorCode PetscObjectBaseTypeCompareAny(PetscObject,PetscBool*,const char[],...);
1313 PETSC_EXTERN PetscErrorCode PetscRegisterFinalize(PetscErrorCode (*)(void));
1314 PETSC_EXTERN PetscErrorCode PetscRegisterFinalizeAll(void);
1315 
1316 #if defined(PETSC_HAVE_SAWS)
1317 PETSC_EXTERN PetscErrorCode PetscSAWsBlock(void);
1318 PETSC_EXTERN PetscErrorCode PetscObjectSAWsViewOff(PetscObject);
1319 PETSC_EXTERN PetscErrorCode PetscObjectSAWsSetBlock(PetscObject,PetscBool);
1320 PETSC_EXTERN PetscErrorCode PetscObjectSAWsBlock(PetscObject);
1321 PETSC_EXTERN PetscErrorCode PetscObjectSAWsGrantAccess(PetscObject);
1322 PETSC_EXTERN PetscErrorCode PetscObjectSAWsTakeAccess(PetscObject);
1323 PETSC_EXTERN void           PetscStackSAWsGrantAccess(void);
1324 PETSC_EXTERN void           PetscStackSAWsTakeAccess(void);
1325 PETSC_EXTERN PetscErrorCode PetscStackViewSAWs(void);
1326 PETSC_EXTERN PetscErrorCode PetscStackSAWsViewOff(void);
1327 
1328 #else
1329 #define PetscSAWsBlock()                        0
1330 #define PetscObjectSAWsViewOff(obj)             0
1331 #define PetscObjectSAWsSetBlock(obj,flg)        0
1332 #define PetscObjectSAWsBlock(obj)               0
1333 #define PetscObjectSAWsGrantAccess(obj)         0
1334 #define PetscObjectSAWsTakeAccess(obj)          0
1335 #define PetscStackViewSAWs()                    0
1336 #define PetscStackSAWsViewOff()                 0
1337 #define PetscStackSAWsTakeAccess()
1338 #define PetscStackSAWsGrantAccess()
1339 
1340 #endif
1341 
1342 PETSC_EXTERN PetscErrorCode PetscDLOpen(const char[],PetscDLMode,PetscDLHandle *);
1343 PETSC_EXTERN PetscErrorCode PetscDLClose(PetscDLHandle *);
1344 PETSC_EXTERN PetscErrorCode PetscDLSym(PetscDLHandle,const char[],void **);
1345 PETSC_EXTERN PetscErrorCode PetscDLAddr(void (*)(void), char **);
1346 #ifdef PETSC_HAVE_CXX
1347 PETSC_EXTERN PetscErrorCode PetscDemangleSymbol(const char *, char **);
1348 #endif
1349 
1350 #if defined(PETSC_USE_DEBUG)
1351 PETSC_EXTERN PetscErrorCode PetscMallocGetStack(void*,PetscStack**);
1352 #endif
1353 PETSC_EXTERN PetscErrorCode PetscObjectsDump(FILE*,PetscBool);
1354 
1355 PETSC_EXTERN PetscErrorCode PetscObjectListDestroy(PetscObjectList*);
1356 PETSC_EXTERN PetscErrorCode PetscObjectListFind(PetscObjectList,const char[],PetscObject*);
1357 PETSC_EXTERN PetscErrorCode PetscObjectListReverseFind(PetscObjectList,PetscObject,char**,PetscBool*);
1358 PETSC_EXTERN PetscErrorCode PetscObjectListAdd(PetscObjectList *,const char[],PetscObject);
1359 PETSC_EXTERN PetscErrorCode PetscObjectListRemoveReference(PetscObjectList *,const char[]);
1360 PETSC_EXTERN PetscErrorCode PetscObjectListDuplicate(PetscObjectList,PetscObjectList *);
1361 
1362 /*
1363     Dynamic library lists. Lists of names of routines in objects or in dynamic
1364   link libraries that will be loaded as needed.
1365 */
1366 
1367 #define PetscFunctionListAdd(list,name,fptr) PetscFunctionListAdd_Private((list),(name),(PetscVoidFunction)(fptr))
1368 PETSC_EXTERN PetscErrorCode PetscFunctionListAdd_Private(PetscFunctionList*,const char[],void (*)(void));
1369 PETSC_EXTERN PetscErrorCode PetscFunctionListDestroy(PetscFunctionList*);
1370 #define PetscFunctionListFind(list,name,fptr) PetscFunctionListFind_Private((list),(name),(PetscVoidFunction*)(fptr))
1371 PETSC_EXTERN PetscErrorCode PetscFunctionListFind_Private(PetscFunctionList,const char[],void (**)(void));
1372 PETSC_EXTERN PetscErrorCode PetscFunctionListPrintTypes(MPI_Comm,FILE*,const char[],const char[],const char[],const char[],PetscFunctionList,const char[],const char[]);
1373 PETSC_EXTERN PetscErrorCode PetscFunctionListDuplicate(PetscFunctionList,PetscFunctionList *);
1374 PETSC_EXTERN PetscErrorCode PetscFunctionListView(PetscFunctionList,PetscViewer);
1375 PETSC_EXTERN PetscErrorCode PetscFunctionListGet(PetscFunctionList,const char ***,int*);
1376 
1377 PETSC_EXTERN PetscDLLibrary  PetscDLLibrariesLoaded;
1378 PETSC_EXTERN PetscErrorCode PetscDLLibraryAppend(MPI_Comm,PetscDLLibrary *,const char[]);
1379 PETSC_EXTERN PetscErrorCode PetscDLLibraryPrepend(MPI_Comm,PetscDLLibrary *,const char[]);
1380 PETSC_EXTERN PetscErrorCode PetscDLLibrarySym(MPI_Comm,PetscDLLibrary *,const char[],const char[],void **);
1381 PETSC_EXTERN PetscErrorCode PetscDLLibraryPrintPath(PetscDLLibrary);
1382 PETSC_EXTERN PetscErrorCode PetscDLLibraryRetrieve(MPI_Comm,const char[],char *,size_t,PetscBool  *);
1383 PETSC_EXTERN PetscErrorCode PetscDLLibraryOpen(MPI_Comm,const char[],PetscDLLibrary *);
1384 PETSC_EXTERN PetscErrorCode PetscDLLibraryClose(PetscDLLibrary);
1385 
1386 /*
1387      Useful utility routines
1388 */
1389 PETSC_EXTERN PetscErrorCode PetscSplitOwnership(MPI_Comm,PetscInt*,PetscInt*);
1390 PETSC_EXTERN PetscErrorCode PetscSplitOwnershipBlock(MPI_Comm,PetscInt,PetscInt*,PetscInt*);
1391 PETSC_EXTERN PetscErrorCode PetscSplitOwnershipEqual(MPI_Comm,PetscInt*,PetscInt*);
1392 PETSC_EXTERN PetscErrorCode PetscSequentialPhaseBegin(MPI_Comm,PetscMPIInt);
1393 PETSC_EXTERN PetscErrorCode PetscSequentialPhaseEnd(MPI_Comm,PetscMPIInt);
1394 PETSC_EXTERN PetscErrorCode PetscBarrier(PetscObject);
1395 PETSC_EXTERN PetscErrorCode PetscMPIDump(FILE*);
1396 PETSC_EXTERN PetscErrorCode PetscGlobalMinMaxInt(MPI_Comm,const PetscInt[2],PetscInt[2]);
1397 PETSC_EXTERN PetscErrorCode PetscGlobalMinMaxReal(MPI_Comm,const PetscReal[2],PetscReal[2]);
1398 
1399 /*MC
1400     PetscNot - negates a logical type value and returns result as a PetscBool
1401 
1402     Notes:
1403     This is useful in cases like
1404 $     int        *a;
1405 $     PetscBool  flag = PetscNot(a)
1406      where !a would not return a PetscBool because we cannot provide a cast from int to PetscBool in C.
1407 
1408     Level: beginner
1409 
1410     .seealso : PetscBool, PETSC_TRUE, PETSC_FALSE
1411 M*/
1412 #define PetscNot(a) ((a) ? PETSC_FALSE : PETSC_TRUE)
1413 
1414 /*MC
1415     PetscHelpPrintf - Prints help messages.
1416 
1417    Synopsis:
1418     #include <petscsys.h>
1419      PetscErrorCode (*PetscHelpPrintf)(MPI_Comm comm, const char format[],args);
1420 
1421     Collective on comm
1422 
1423     Input Parameters:
1424 +  comm - the MPI communicator over which the help message is printed
1425 .  format - the usual printf() format string
1426 -  args - arguments to be printed
1427 
1428    Level: developer
1429 
1430    Fortran Note:
1431      This routine is not supported in Fortran.
1432 
1433    Note:
1434      You can change how help messages are printed by replacing the function pointer with a function that does not simply write to stdout.
1435 
1436       To use, write your own function, for example,
1437 $PetscErrorCode mypetschelpprintf(MPI_Comm comm,const char format[],....)
1438 ${
1439 $ PetscFunctionReturn(0);
1440 $}
1441 then do the assigment
1442 $    PetscHelpPrintf = mypetschelpprintf;
1443    You can do the assignment before PetscInitialize().
1444 
1445   The default routine used is called PetscHelpPrintfDefault().
1446 
1447 .seealso: PetscFPrintf(), PetscSynchronizedPrintf(), PetscErrorPrintf()
1448 M*/
1449 PETSC_EXTERN PetscErrorCode (*PetscHelpPrintf)(MPI_Comm,const char[],...) PETSC_ATTRIBUTE_FORMAT(2,3);
1450 
1451 /*
1452      Defines PETSc profiling.
1453 */
1454 #include <petsclog.h>
1455 
1456 /*
1457       Simple PETSc parallel IO for ASCII printing
1458 */
1459 PETSC_EXTERN PetscErrorCode PetscFixFilename(const char[],char[]);
1460 PETSC_EXTERN PetscErrorCode PetscFOpen(MPI_Comm,const char[],const char[],FILE**);
1461 PETSC_EXTERN PetscErrorCode PetscFClose(MPI_Comm,FILE*);
1462 PETSC_EXTERN PetscErrorCode PetscFPrintf(MPI_Comm,FILE*,const char[],...) PETSC_ATTRIBUTE_FORMAT(3,4);
1463 PETSC_EXTERN PetscErrorCode PetscPrintf(MPI_Comm,const char[],...) PETSC_ATTRIBUTE_FORMAT(2,3);
1464 PETSC_EXTERN PetscErrorCode PetscSNPrintf(char*,size_t,const char [],...) PETSC_ATTRIBUTE_FORMAT(3,4);
1465 PETSC_EXTERN PetscErrorCode PetscSNPrintfCount(char*,size_t,const char [],size_t*,...) PETSC_ATTRIBUTE_FORMAT(3,5);
1466 PETSC_EXTERN PetscErrorCode PetscFormatRealArray(char[],size_t,const char*,PetscInt,const PetscReal[]);
1467 
1468 PETSC_EXTERN PetscErrorCode PetscErrorPrintfDefault(const char [],...) PETSC_ATTRIBUTE_FORMAT(1,2);
1469 PETSC_EXTERN PetscErrorCode PetscErrorPrintfNone(const char [],...) PETSC_ATTRIBUTE_FORMAT(1,2);
1470 PETSC_EXTERN PetscErrorCode PetscHelpPrintfDefault(MPI_Comm,const char [],...) PETSC_ATTRIBUTE_FORMAT(2,3);
1471 
1472 PETSC_EXTERN PetscErrorCode PetscFormatConvertGetSize(const char*,size_t*);
1473 PETSC_EXTERN PetscErrorCode PetscFormatConvert(const char*,char *);
1474 
1475 #if defined(PETSC_HAVE_POPEN)
1476 PETSC_EXTERN PetscErrorCode PetscPOpen(MPI_Comm,const char[],const char[],const char[],FILE **);
1477 PETSC_EXTERN PetscErrorCode PetscPClose(MPI_Comm,FILE*);
1478 PETSC_EXTERN PetscErrorCode PetscPOpenSetMachine(const char[]);
1479 #endif
1480 
1481 PETSC_EXTERN PetscErrorCode PetscSynchronizedPrintf(MPI_Comm,const char[],...) PETSC_ATTRIBUTE_FORMAT(2,3);
1482 PETSC_EXTERN PetscErrorCode PetscSynchronizedFPrintf(MPI_Comm,FILE*,const char[],...) PETSC_ATTRIBUTE_FORMAT(3,4);
1483 PETSC_EXTERN PetscErrorCode PetscSynchronizedFlush(MPI_Comm,FILE*);
1484 PETSC_EXTERN PetscErrorCode PetscSynchronizedFGets(MPI_Comm,FILE*,size_t,char[]);
1485 PETSC_EXTERN PetscErrorCode PetscStartMatlab(MPI_Comm,const char[],const char[],FILE**);
1486 PETSC_EXTERN PetscErrorCode PetscStartJava(MPI_Comm,const char[],const char[],FILE**);
1487 PETSC_EXTERN PetscErrorCode PetscGetPetscDir(const char*[]);
1488 
1489 PETSC_EXTERN PetscClassId PETSC_CONTAINER_CLASSID;
1490 PETSC_EXTERN PetscErrorCode PetscContainerGetPointer(PetscContainer,void**);
1491 PETSC_EXTERN PetscErrorCode PetscContainerSetPointer(PetscContainer,void*);
1492 PETSC_EXTERN PetscErrorCode PetscContainerDestroy(PetscContainer*);
1493 PETSC_EXTERN PetscErrorCode PetscContainerCreate(MPI_Comm,PetscContainer*);
1494 PETSC_EXTERN PetscErrorCode PetscContainerSetUserDestroy(PetscContainer,PetscErrorCode (*)(void*));
1495 PETSC_EXTERN PetscErrorCode PetscContainerUserDestroyDefault(void*);
1496 
1497 /*
1498    For use in debuggers
1499 */
1500 PETSC_EXTERN PetscMPIInt PetscGlobalRank;
1501 PETSC_EXTERN PetscMPIInt PetscGlobalSize;
1502 PETSC_EXTERN PetscErrorCode PetscIntView(PetscInt,const PetscInt[],PetscViewer);
1503 PETSC_EXTERN PetscErrorCode PetscRealView(PetscInt,const PetscReal[],PetscViewer);
1504 PETSC_EXTERN PetscErrorCode PetscScalarView(PetscInt,const PetscScalar[],PetscViewer);
1505 
1506 #include <stddef.h>
1507 #include <string.h>             /* for memcpy, memset */
1508 #include <stdlib.h>
1509 
1510 #if defined(PETSC_HAVE_XMMINTRIN_H) && !defined(__CUDACC__)
1511 #include <xmmintrin.h>
1512 #endif
1513 
1514 /*@C
1515    PetscMemmove - Copies n bytes, beginning at location b, to the space
1516    beginning at location a. Copying  between regions that overlap will
1517    take place correctly. Use PetscMemcpy() if the locations do not overlap
1518 
1519    Not Collective
1520 
1521    Input Parameters:
1522 +  b - pointer to initial memory space
1523 .  a - pointer to copy space
1524 -  n - length (in bytes) of space to copy
1525 
1526    Level: intermediate
1527 
1528    Note:
1529    PetscArraymove() is preferred
1530    This routine is analogous to memmove().
1531 
1532    Developers Note: This is inlined for performance
1533 
1534 .seealso: PetscMemcpy(), PetscMemcmp(), PetscArrayzero(), PetscMemzero(), PetscArraycmp(), PetscArraycpy(), PetscStrallocpy(),
1535           PetscArraymove()
1536 @*/
1537 static inline PetscErrorCode PetscMemmove(void *a,const void *b,size_t n)
1538 {
1539   PetscFunctionBegin;
1540   if (n > 0) {
1541     PetscCheck(a,PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to copy to null pointer");
1542     PetscCheck(b,PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to copy from a null pointer");
1543   }
1544 #if !defined(PETSC_HAVE_MEMMOVE)
1545   if (a < b) {
1546     if (a <= b - n) memcpy(a,b,n);
1547     else {
1548       memcpy(a,b,(int)(b - a));
1549       PetscMemmove(b,b + (int)(b - a),n - (int)(b - a));
1550     }
1551   } else {
1552     if (b <= a - n) memcpy(a,b,n);
1553     else {
1554       memcpy(b + n,b + (n - (int)(a - b)),(int)(a - b));
1555       PetscMemmove(a,b,n - (int)(a - b));
1556     }
1557   }
1558 #else
1559   memmove((char*)(a),(char*)(b),n);
1560 #endif
1561   PetscFunctionReturn(0);
1562 }
1563 
1564 /*@C
1565    PetscMemcpy - Copies n bytes, beginning at location b, to the space
1566    beginning at location a. The two memory regions CANNOT overlap, use
1567    PetscMemmove() in that case.
1568 
1569    Not Collective
1570 
1571    Input Parameters:
1572 +  b - pointer to initial memory space
1573 -  n - length (in bytes) of space to copy
1574 
1575    Output Parameter:
1576 .  a - pointer to copy space
1577 
1578    Level: intermediate
1579 
1580    Compile Option:
1581     PETSC_PREFER_DCOPY_FOR_MEMCPY will cause the BLAS dcopy() routine to be used
1582                                   for memory copies on double precision values.
1583     PETSC_PREFER_COPY_FOR_MEMCPY will cause C code to be used
1584                                   for memory copies on double precision values.
1585     PETSC_PREFER_FORTRAN_FORMEMCPY will cause Fortran code to be used
1586                                   for memory copies on double precision values.
1587 
1588    Note:
1589    Prefer PetscArraycpy()
1590    This routine is analogous to memcpy().
1591    Not available from Fortran
1592 
1593    Developer Note: this is inlined for fastest performance
1594 
1595 .seealso: PetscMemzero(), PetscMemcmp(), PetscArrayzero(), PetscArraycmp(), PetscArraycpy(), PetscMemmove(), PetscStrallocpy()
1596 
1597 @*/
1598 static inline PetscErrorCode PetscMemcpy(void *a,const void *b,size_t n)
1599 {
1600 #if defined(PETSC_USE_DEBUG)
1601   size_t al = (size_t) a,bl = (size_t) b;
1602   size_t nl = (size_t) n;
1603   PetscFunctionBegin;
1604   if (n > 0) {
1605     PetscCheck(b,PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to copy from a null pointer");
1606     PetscCheck(a,PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to copy to a null pointer");
1607   }
1608 #else
1609   PetscFunctionBegin;
1610 #endif
1611   if (a != b && n > 0) {
1612 #if defined(PETSC_USE_DEBUG)
1613     PetscCheck(!((al > bl && (al - bl) < nl) || (bl - al) < nl),PETSC_COMM_SELF,PETSC_ERR_ARG_INCOMP,"Memory regions overlap: either use PetscMemmov()\n\
1614               or make sure your copy regions and lengths are correct. \n\
1615               Length (bytes) %ld first address %ld second address %ld",nl,al,bl);
1616 #endif
1617 #if (defined(PETSC_PREFER_DCOPY_FOR_MEMCPY) || defined(PETSC_PREFER_COPY_FOR_MEMCPY) || defined(PETSC_PREFER_FORTRAN_FORMEMCPY))
1618    if (!(a % sizeof(PetscScalar)) && !(n % sizeof(PetscScalar))) {
1619       size_t len = n/sizeof(PetscScalar);
1620 #if defined(PETSC_PREFER_DCOPY_FOR_MEMCPY)
1621       PetscBLASInt   one = 1,blen;
1622       PetscErrorCode ierr;
1623       ierr = PetscBLASIntCast(len,&blen);CHKERRQ(ierr);
1624       PetscStackCallBLAS("BLAScopy",BLAScopy_(&blen,(PetscScalar *)b,&one,(PetscScalar *)a,&one));
1625 #elif defined(PETSC_PREFER_FORTRAN_FORMEMCPY)
1626       fortrancopy_(&len,(PetscScalar*)b,(PetscScalar*)a);
1627 #else
1628       size_t      i;
1629       PetscScalar *x = (PetscScalar*)b, *y = (PetscScalar*)a;
1630       for (i=0; i<len; i++) y[i] = x[i];
1631 #endif
1632     } else {
1633       memcpy((char*)(a),(char*)(b),n);
1634     }
1635 #else
1636     memcpy((char*)(a),(char*)(b),n);
1637 #endif
1638   }
1639   PetscFunctionReturn(0);
1640 }
1641 
1642 /*@C
1643    PetscMemzero - Zeros the specified memory.
1644 
1645    Not Collective
1646 
1647    Input Parameters:
1648 +  a - pointer to beginning memory location
1649 -  n - length (in bytes) of memory to initialize
1650 
1651    Level: intermediate
1652 
1653    Compile Option:
1654    PETSC_PREFER_BZERO - on certain machines (the IBM RS6000) the bzero() routine happens
1655   to be faster than the memset() routine. This flag causes the bzero() routine to be used.
1656 
1657    Not available from Fortran
1658    Prefer PetscArrayzero()
1659 
1660    Developer Note: this is inlined for fastest performance
1661 
1662 .seealso: PetscMemcpy(), PetscMemcmp(), PetscArrayzero(), PetscArraycmp(), PetscArraycpy(), PetscMemmove(), PetscStrallocpy()
1663 @*/
1664 static inline PetscErrorCode PetscMemzero(void *a,size_t n)
1665 {
1666   if (n > 0) {
1667 #if defined(PETSC_USE_DEBUG)
1668     PetscCheck(a,PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to zero at a null pointer with %zu bytes",n);
1669 #endif
1670 #if defined(PETSC_PREFER_ZERO_FOR_MEMZERO)
1671     if (!(((long) a) % sizeof(PetscScalar)) && !(n % sizeof(PetscScalar))) {
1672       size_t      i,len = n/sizeof(PetscScalar);
1673       PetscScalar *x = (PetscScalar*)a;
1674       for (i=0; i<len; i++) x[i] = 0.0;
1675     } else {
1676 #elif defined(PETSC_PREFER_FORTRAN_FOR_MEMZERO)
1677     if (!(((long) a) % sizeof(PetscScalar)) && !(n % sizeof(PetscScalar))) {
1678       PetscInt len = n/sizeof(PetscScalar);
1679       fortranzero_(&len,(PetscScalar*)a);
1680     } else {
1681 #endif
1682 #if defined(PETSC_PREFER_BZERO)
1683       bzero((char *)a,n);
1684 #else
1685       memset((char*)a,0,n);
1686 #endif
1687 #if defined(PETSC_PREFER_ZERO_FOR_MEMZERO) || defined(PETSC_PREFER_FORTRAN_FOR_MEMZERO)
1688     }
1689 #endif
1690   }
1691   return 0;
1692 }
1693 
1694 /*MC
1695    PetscArraycmp - Compares two arrays in memory.
1696 
1697    Synopsis:
1698     #include <petscsys.h>
1699     PetscErrorCode PetscArraycmp(const anytype *str1,const anytype *str2,size_t cnt,PetscBool *e)
1700 
1701    Not Collective
1702 
1703    Input Parameters:
1704 +  str1 - First array
1705 .  str2 - Second array
1706 -  cnt  - Count of the array, not in bytes, but number of entries in the arrays
1707 
1708    Output Parameters:
1709 .   e - PETSC_TRUE if equal else PETSC_FALSE.
1710 
1711    Level: intermediate
1712 
1713    Note:
1714    This routine is a preferred replacement to PetscMemcmp()
1715    The arrays must be of the same type
1716 
1717 .seealso: PetscMemcpy(), PetscMemcmp(), PetscArrayzero(), PetscMemzero(), PetscArraycpy(), PetscMemmove(), PetscStrallocpy(),
1718           PetscArraymove()
1719 M*/
1720 #define  PetscArraycmp(str1,str2,cnt,e) ((sizeof(*(str1)) != sizeof(*(str2))) || PetscMemcmp(str1,str2,(size_t)(cnt)*sizeof(*(str1)),e))
1721 
1722 /*MC
1723    PetscArraymove - Copies from one array in memory to another, the arrays may overlap. Use PetscArraycpy() when the arrays
1724                     do not overlap
1725 
1726    Synopsis:
1727     #include <petscsys.h>
1728     PetscErrorCode PetscArraymove(anytype *str1,const anytype *str2,size_t cnt)
1729 
1730    Not Collective
1731 
1732    Input Parameters:
1733 +  str1 - First array
1734 .  str2 - Second array
1735 -  cnt  - Count of the array, not in bytes, but number of entries in the arrays
1736 
1737    Level: intermediate
1738 
1739    Note:
1740    This routine is a preferred replacement to PetscMemmove()
1741    The arrays must be of the same type
1742 
1743 .seealso: PetscMemcpy(), PetscMemcmp(), PetscArrayzero(), PetscMemzero(), PetscArraycpy(), PetscMemmove(), PetscArraycmp(), PetscStrallocpy()
1744 M*/
1745 #define  PetscArraymove(str1,str2,cnt) ((sizeof(*(str1)) != sizeof(*(str2))) || PetscMemmove(str1,str2,(size_t)(cnt)*sizeof(*(str1))))
1746 
1747 /*MC
1748    PetscArraycpy - Copies from one array in memory to another
1749 
1750    Synopsis:
1751     #include <petscsys.h>
1752     PetscErrorCode PetscArraycpy(anytype *str1,const anytype *str2,size_t cnt)
1753 
1754    Not Collective
1755 
1756    Input Parameters:
1757 +  str1 - First array (destination)
1758 .  str2 - Second array (source)
1759 -  cnt  - Count of the array, not in bytes, but number of entries in the arrays
1760 
1761    Level: intermediate
1762 
1763    Note:
1764    This routine is a preferred replacement to PetscMemcpy()
1765    The arrays must be of the same type
1766 
1767 .seealso: PetscMemcpy(), PetscMemcmp(), PetscArrayzero(), PetscMemzero(), PetscArraymove(), PetscMemmove(), PetscArraycmp(), PetscStrallocpy()
1768 M*/
1769 #define  PetscArraycpy(str1,str2,cnt) ((sizeof(*(str1)) != sizeof(*(str2))) || PetscMemcpy(str1,str2,(size_t)(cnt)*sizeof(*(str1))))
1770 
1771 /*MC
1772    PetscArrayzero - Zeros an array in memory.
1773 
1774    Synopsis:
1775     #include <petscsys.h>
1776     PetscErrorCode PetscArrayzero(anytype *str1,size_t cnt)
1777 
1778    Not Collective
1779 
1780    Input Parameters:
1781 +  str1 - array
1782 -  cnt  - Count of the array, not in bytes, but number of entries in the array
1783 
1784    Level: intermediate
1785 
1786    Note:
1787    This routine is a preferred replacement to PetscMemzero()
1788 
1789 .seealso: PetscMemcpy(), PetscMemcmp(), PetscMemzero(), PetscArraycmp(), PetscArraycpy(), PetscMemmove(), PetscStrallocpy(), PetscArraymove()
1790 M*/
1791 #define  PetscArrayzero(str1,cnt) PetscMemzero(str1,(size_t)(cnt)*sizeof(*(str1)))
1792 
1793 /*MC
1794    PetscPrefetchBlock - Prefetches a block of memory
1795 
1796    Synopsis:
1797     #include <petscsys.h>
1798     void PetscPrefetchBlock(const anytype *a,size_t n,int rw,int t)
1799 
1800    Not Collective
1801 
1802    Input Parameters:
1803 +  a - pointer to first element to fetch (any type but usually PetscInt or PetscScalar)
1804 .  n - number of elements to fetch
1805 .  rw - 1 if the memory will be written to, otherwise 0 (ignored by many processors)
1806 -  t - temporal locality (PETSC_PREFETCH_HINT_{NTA,T0,T1,T2}), see note
1807 
1808    Level: developer
1809 
1810    Notes:
1811    The last two arguments (rw and t) must be compile-time constants.
1812 
1813    Adopting Intel's x86/x86-64 conventions, there are four levels of temporal locality.  Not all architectures offer
1814    equivalent locality hints, but the following macros are always defined to their closest analogue.
1815 +  PETSC_PREFETCH_HINT_NTA - Non-temporal.  Prefetches directly to L1, evicts to memory (skips higher level cache unless it was already there when prefetched).
1816 .  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.
1817 .  PETSC_PREFETCH_HINT_T1 - Fetch to level 2 and higher (not L1).
1818 -  PETSC_PREFETCH_HINT_T2 - Fetch to high-level cache only.  (On many systems, T0 and T1 are equivalent.)
1819 
1820    This function does nothing on architectures that do not support prefetch and never errors (even if passed an invalid
1821    address).
1822 
1823 M*/
1824 #define PetscPrefetchBlock(a,n,rw,t) do {                               \
1825     const char *_p = (const char*)(a),*_end = (const char*)((a)+(n));   \
1826     for (; _p < _end; _p += PETSC_LEVEL1_DCACHE_LINESIZE) PETSC_Prefetch(_p,(rw),(t)); \
1827   } while (0)
1828 
1829 /*
1830       Determine if some of the kernel computation routines use
1831    Fortran (rather than C) for the numerical calculations. On some machines
1832    and compilers (like complex numbers) the Fortran version of the routines
1833    is faster than the C/C++ versions. The flag --with-fortran-kernels
1834    should be used with ./configure to turn these on.
1835 */
1836 #if defined(PETSC_USE_FORTRAN_KERNELS)
1837 
1838 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTCRL)
1839 #define PETSC_USE_FORTRAN_KERNEL_MULTCRL
1840 #endif
1841 
1842 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTAIJPERM)
1843 #define PETSC_USE_FORTRAN_KERNEL_MULTAIJPERM
1844 #endif
1845 
1846 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTAIJ)
1847 #define PETSC_USE_FORTRAN_KERNEL_MULTAIJ
1848 #endif
1849 
1850 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTTRANSPOSEAIJ)
1851 #define PETSC_USE_FORTRAN_KERNEL_MULTTRANSPOSEAIJ
1852 #endif
1853 
1854 #if !defined(PETSC_USE_FORTRAN_KERNEL_NORM)
1855 #define PETSC_USE_FORTRAN_KERNEL_NORM
1856 #endif
1857 
1858 #if !defined(PETSC_USE_FORTRAN_KERNEL_MAXPY)
1859 #define PETSC_USE_FORTRAN_KERNEL_MAXPY
1860 #endif
1861 
1862 #if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ)
1863 #define PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ
1864 #endif
1865 
1866 #if !defined(PETSC_USE_FORTRAN_KERNEL_RELAXAIJ)
1867 #define PETSC_USE_FORTRAN_KERNEL_RELAXAIJ
1868 #endif
1869 
1870 #if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ)
1871 #define PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ
1872 #endif
1873 
1874 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ)
1875 #define PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ
1876 #endif
1877 
1878 #if !defined(PETSC_USE_FORTRAN_KERNEL_MDOT)
1879 #define PETSC_USE_FORTRAN_KERNEL_MDOT
1880 #endif
1881 
1882 #if !defined(PETSC_USE_FORTRAN_KERNEL_XTIMESY)
1883 #define PETSC_USE_FORTRAN_KERNEL_XTIMESY
1884 #endif
1885 
1886 #if !defined(PETSC_USE_FORTRAN_KERNEL_AYPX)
1887 #define PETSC_USE_FORTRAN_KERNEL_AYPX
1888 #endif
1889 
1890 #if !defined(PETSC_USE_FORTRAN_KERNEL_WAXPY)
1891 #define PETSC_USE_FORTRAN_KERNEL_WAXPY
1892 #endif
1893 
1894 #endif
1895 
1896 /*
1897     Macros for indicating code that should be compiled with a C interface,
1898    rather than a C++ interface. Any routines that are dynamically loaded
1899    (such as the PCCreate_XXX() routines) must be wrapped so that the name
1900    mangler does not change the functions symbol name. This just hides the
1901    ugly extern "C" {} wrappers.
1902 */
1903 #if defined(__cplusplus)
1904 #  define EXTERN_C_BEGIN extern "C" {
1905 #  define EXTERN_C_END }
1906 #else
1907 #  define EXTERN_C_BEGIN
1908 #  define EXTERN_C_END
1909 #endif
1910 
1911 /* --------------------------------------------------------------------*/
1912 
1913 /*MC
1914     MPI_Comm - the basic object used by MPI to determine which processes are involved in a
1915         communication
1916 
1917    Level: beginner
1918 
1919    Note: This manual page is a place-holder because MPICH does not have a manual page for MPI_Comm
1920 
1921 .seealso: PETSC_COMM_WORLD, PETSC_COMM_SELF
1922 M*/
1923 
1924 #if defined(PETSC_HAVE_MPIIO)
1925 PETSC_EXTERN PetscErrorCode MPIU_File_write_all(MPI_File,void*,PetscMPIInt,MPI_Datatype,MPI_Status*);
1926 PETSC_EXTERN PetscErrorCode MPIU_File_read_all(MPI_File,void*,PetscMPIInt,MPI_Datatype,MPI_Status*);
1927 PETSC_EXTERN PetscErrorCode MPIU_File_write_at(MPI_File,MPI_Offset,void*,PetscMPIInt,MPI_Datatype,MPI_Status*);
1928 PETSC_EXTERN PetscErrorCode MPIU_File_read_at(MPI_File,MPI_Offset,void*,PetscMPIInt,MPI_Datatype,MPI_Status*);
1929 PETSC_EXTERN PetscErrorCode MPIU_File_write_at_all(MPI_File,MPI_Offset,void*,PetscMPIInt,MPI_Datatype,MPI_Status*);
1930 PETSC_EXTERN PetscErrorCode MPIU_File_read_at_all(MPI_File,MPI_Offset,void*,PetscMPIInt,MPI_Datatype,MPI_Status*);
1931 #endif
1932 
1933 /* the following petsc_static_inline require petscerror.h */
1934 
1935 /* Limit MPI to 32-bits */
1936 #define PETSC_MPI_INT_MAX  2147483647
1937 #define PETSC_MPI_INT_MIN -2147483647
1938 /* Limit BLAS to 32-bits */
1939 #define PETSC_BLAS_INT_MAX  2147483647
1940 #define PETSC_BLAS_INT_MIN -2147483647
1941 #define PETSC_CUBLAS_INT_MAX  2147483647
1942 
1943 /*@C
1944     PetscIntCast - casts a PetscInt64 (which is 64 bits in size) to a PetscInt (which may be 32 bits in size), generates an
1945          error if the PetscInt is not large enough to hold the number.
1946 
1947    Not Collective
1948 
1949    Input Parameter:
1950 .     a - the PetscInt64 value
1951 
1952    Output Parameter:
1953 .     b - the resulting PetscInt value
1954 
1955    Level: advanced
1956 
1957    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
1958 
1959    Not available from Fortran
1960 
1961 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscMPIIntCast(), PetscBLASIntCast(), PetscIntMultError(), PetscIntSumError()
1962 @*/
1963 static inline PetscErrorCode PetscIntCast(PetscInt64 a,PetscInt *b)
1964 {
1965   PetscFunctionBegin;
1966 #if !defined(PETSC_USE_64BIT_INDICES)
1967   if (a > PETSC_MAX_INT) {
1968     *b = 0;
1969     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);
1970   }
1971 #endif
1972   *b = (PetscInt)(a);
1973   PetscFunctionReturn(0);
1974 }
1975 
1976 /*@C
1977     PetscCountCast - casts a PetscCount to a PetscInt (which may be 32 bits in size), generates an
1978          error if the PetscInt is not large enough to hold the number.
1979 
1980    Not Collective
1981 
1982    Input Parameter:
1983 .     a - the PetscCount value
1984 
1985    Output Parameter:
1986 .     b - the resulting PetscInt value
1987 
1988    Level: advanced
1989 
1990    Notes:
1991      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
1992 
1993    Not available from Fortran
1994 
1995 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscMPIIntCast(), PetscBLASIntCast(), PetscIntMultError(), PetscIntSumError(), PetscIntCast()
1996 @*/
1997 static inline PetscErrorCode PetscCountCast(PetscCount a,PetscInt *b)
1998 {
1999   PetscFunctionBegin;
2000   if (sizeof(PetscCount) > sizeof(PetscInt) && a > PETSC_MAX_INT) {
2001     *b = 0;
2002     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);
2003   }
2004   *b = (PetscInt)(a);
2005   PetscFunctionReturn(0);
2006 }
2007 
2008 /*@C
2009     PetscBLASIntCast - casts a PetscInt (which may be 64 bits in size) to a PetscBLASInt (which may be 32 bits in size), generates an
2010          error if the PetscBLASInt is not large enough to hold the number.
2011 
2012    Not Collective
2013 
2014    Input Parameter:
2015 .     a - the PetscInt value
2016 
2017    Output Parameter:
2018 .     b - the resulting PetscBLASInt value
2019 
2020    Level: advanced
2021 
2022    Notes:
2023       Not available from Fortran
2024       Errors if the integer is negative since PETSc calls to BLAS/LAPACK never need to cast negative integer inputs
2025 
2026 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscMPIIntCast(), PetscIntCast(), PetscCountCast()
2027 @*/
2028 static inline PetscErrorCode PetscBLASIntCast(PetscInt a,PetscBLASInt *b)
2029 {
2030   PetscFunctionBegin;
2031   *b = 0;
2032   if (PetscDefined(USE_64BIT_INDICES) && !PetscDefined(HAVE_64BIT_BLAS_INDICES)) {
2033     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);
2034   }
2035   PetscCheck(a >= 0,PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Passing negative integer to BLAS/LAPACK routine");
2036   *b = (PetscBLASInt)(a);
2037   PetscFunctionReturn(0);
2038 }
2039 
2040 /*@C
2041     PetscCuBLASIntCast - like PetscBLASIntCast(), but for PetscCuBLASInt.
2042 
2043    Not Collective
2044 
2045    Input Parameter:
2046 .     a - the PetscInt value
2047 
2048    Output Parameter:
2049 .     b - the resulting PetscCuBLASInt value
2050 
2051    Level: advanced
2052 
2053    Notes:
2054       Errors if the integer is negative since PETSc calls to cuBLAS and friends never need to cast negative integer inputs
2055 
2056 .seealso: PetscCuBLASInt, PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscMPIIntCast(), PetscIntCast()
2057 @*/
2058 static inline PetscErrorCode PetscCuBLASIntCast(PetscInt a,PetscCuBLASInt *b)
2059 {
2060   PetscFunctionBegin;
2061   *b = 0;
2062   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);
2063   PetscCheck(a >= 0,PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Passing negative integer to cuBLAS routine");
2064   *b = (PetscCuBLASInt)(a);
2065   PetscFunctionReturn(0);
2066 }
2067 
2068 /*@C
2069     PetscMPIIntCast - casts a PetscInt (which may be 64 bits in size) to a PetscMPIInt (which may be 32 bits in size), generates an
2070          error if the PetscMPIInt is not large enough to hold the number.
2071 
2072    Not Collective
2073 
2074    Input Parameter:
2075 .     a - the PetscInt value
2076 
2077    Output Parameter:
2078 .     b - the resulting PetscMPIInt value
2079 
2080    Level: advanced
2081 
2082    Not available from Fortran
2083 
2084 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscIntCast()
2085 @*/
2086 static inline PetscErrorCode PetscMPIIntCast(PetscInt a,PetscMPIInt *b)
2087 {
2088   PetscFunctionBegin;
2089   *b = 0;
2090   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);
2091   *b = (PetscMPIInt)(a);
2092   PetscFunctionReturn(0);
2093 }
2094 
2095 #define PetscInt64Mult(a,b)   ((PetscInt64)(a))*((PetscInt64)(b))
2096 
2097 /*@C
2098 
2099    PetscRealIntMultTruncate - Computes the product of a positive PetscReal and a positive PetscInt and truncates the value to slightly less than the maximal possible value
2100 
2101    Not Collective
2102 
2103    Input Parameters:
2104 +     a - the PetscReal value
2105 -     b - the second value
2106 
2107    Returns:
2108       the result as a PetscInt value
2109 
2110    Use PetscInt64Mult() to compute the product of two PetscInt as a PetscInt64
2111    Use PetscIntMultTruncate() to compute the product of two positive PetscInt and truncate to fit a PetscInt
2112    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
2113 
2114    Developers Note:
2115    We currently assume that PetscInt addition can never overflow, this is obviously wrong but requires many more checks.
2116 
2117    This is used where we compute approximate sizes for workspace and need to insure the workspace is index-able.
2118 
2119    Not available from Fortran
2120 
2121    Level: advanced
2122 
2123 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscInt64Mult(), PetscIntMultError(), PetscIntSumError()
2124 @*/
2125 static inline PetscInt PetscRealIntMultTruncate(PetscReal a,PetscInt b)
2126 {
2127   PetscInt64 r;
2128 
2129   r  =  (PetscInt64) (a*(PetscReal)b);
2130   if (r > PETSC_MAX_INT - 100) r = PETSC_MAX_INT - 100;
2131   return (PetscInt) r;
2132 }
2133 
2134 /*@C
2135 
2136    PetscIntMultTruncate - Computes the product of two positive PetscInt and truncates the value to slightly less than the maximal possible value
2137 
2138    Not Collective
2139 
2140    Input Parameters:
2141 +     a - the PetscInt value
2142 -     b - the second value
2143 
2144    Returns:
2145       the result as a PetscInt value
2146 
2147    Use PetscInt64Mult() to compute the product of two PetscInt as a PetscInt64
2148    Use PetscRealIntMultTruncate() to compute the product of a PetscReal and a PetscInt and truncate to fit a PetscInt
2149    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
2150 
2151    Not available from Fortran
2152 
2153    Developers Note: We currently assume that PetscInt addition can never overflow, this is obviously wrong but requires many more checks.
2154 
2155    This is used where we compute approximate sizes for workspace and need to insure the workspace is index-able.
2156 
2157    Level: advanced
2158 
2159 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscInt64Mult(), PetscIntMultError(), PetscIntSumError()
2160 @*/
2161 static inline PetscInt PetscIntMultTruncate(PetscInt a,PetscInt b)
2162 {
2163   PetscInt64 r;
2164 
2165   r  =  PetscInt64Mult(a,b);
2166   if (r > PETSC_MAX_INT - 100) r = PETSC_MAX_INT - 100;
2167   return (PetscInt) r;
2168 }
2169 
2170 /*@C
2171 
2172    PetscIntSumTruncate - Computes the sum of two positive PetscInt and truncates the value to slightly less than the maximal possible value
2173 
2174    Not Collective
2175 
2176    Input Parameters:
2177 +     a - the PetscInt value
2178 -     b - the second value
2179 
2180    Returns:
2181      the result as a PetscInt value
2182 
2183    Use PetscInt64Mult() to compute the product of two PetscInt as a PetscInt64
2184    Use PetscRealIntMultTruncate() to compute the product of a PetscReal and a PetscInt and truncate to fit a PetscInt
2185    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
2186 
2187    This is used where we compute approximate sizes for workspace and need to insure the workspace is index-able.
2188 
2189    Not available from Fortran
2190 
2191    Level: advanced
2192 
2193 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscInt64Mult(), PetscIntMultError()
2194 @*/
2195 static inline PetscInt PetscIntSumTruncate(PetscInt a,PetscInt b)
2196 {
2197   PetscInt64 r;
2198 
2199   r  =  ((PetscInt64)a) + ((PetscInt64)b);
2200   if (r > PETSC_MAX_INT - 100) r = PETSC_MAX_INT - 100;
2201   return (PetscInt) r;
2202 }
2203 
2204 /*@C
2205 
2206    PetscIntMultError - Computes the product of two positive PetscInt and generates an error with overflow.
2207 
2208    Not Collective
2209 
2210    Input Parameters:
2211 +     a - the PetscInt value
2212 -     b - the second value
2213 
2214    Output Parameter:
2215 .     result - the result as a PetscInt value, or NULL if you do not want the result, you just want to check if it overflows
2216 
2217    Use PetscInt64Mult() to compute the product of two 32 bit PetscInt and store in a PetscInt64
2218    Use PetscIntMultTruncate() to compute the product of two PetscInt and truncate it to fit in a PetscInt
2219 
2220    Not available from Fortran
2221 
2222    Developers Note: We currently assume that PetscInt addition does not overflow, this is obviously wrong but requires many more checks.
2223 
2224    Level: advanced
2225 
2226 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscIntMult64(), PetscIntSumError()
2227 @*/
2228 static inline PetscErrorCode PetscIntMultError(PetscInt a,PetscInt b,PetscInt *result)
2229 {
2230   PetscInt64 r;
2231 
2232   PetscFunctionBegin;
2233   r  =  PetscInt64Mult(a,b);
2234 #if !defined(PETSC_USE_64BIT_INDICES)
2235   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);
2236 #endif
2237   if (result) *result = (PetscInt) r;
2238   PetscFunctionReturn(0);
2239 }
2240 
2241 /*@C
2242 
2243    PetscIntSumError - Computes the sum of two positive PetscInt and generates an error with overflow.
2244 
2245    Not Collective
2246 
2247    Input Parameters:
2248 +     a - the PetscInt value
2249 -     b - the second value
2250 
2251    Output Parameter:
2252 .     c - the result as a PetscInt value,  or NULL if you do not want the result, you just want to check if it overflows
2253 
2254    Use PetscInt64Mult() to compute the product of two 32 bit PetscInt and store in a PetscInt64
2255    Use PetscIntMultTruncate() to compute the product of two PetscInt and truncate it to fit in a PetscInt
2256 
2257    Not available from Fortran
2258 
2259    Level: advanced
2260 
2261 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscInt64Mult(), PetscIntMultError()
2262 @*/
2263 static inline PetscErrorCode PetscIntSumError(PetscInt a,PetscInt b,PetscInt *result)
2264 {
2265   PetscInt64 r;
2266 
2267   PetscFunctionBegin;
2268   r  =  ((PetscInt64)a) + ((PetscInt64)b);
2269 #if !defined(PETSC_USE_64BIT_INDICES)
2270   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);
2271 #endif
2272   if (result) *result = (PetscInt) r;
2273   PetscFunctionReturn(0);
2274 }
2275 
2276 /*
2277      The IBM include files define hz, here we hide it so that it may be used as a regular user variable.
2278 */
2279 #if defined(hz)
2280 #  undef hz
2281 #endif
2282 
2283 #include <limits.h>
2284 
2285 /* The number of bits in a byte */
2286 
2287 #define PETSC_BITS_PER_BYTE CHAR_BIT
2288 
2289 #if defined(PETSC_HAVE_SYS_TYPES_H)
2290 #  include <sys/types.h>
2291 #endif
2292 
2293 /*MC
2294 
2295     PETSC_VERSION - This manual page provides information about how PETSc documents and uses its version information. This information is available to both C/C++
2296                     and Fortran compilers when petscsys.h is included.
2297 
2298     The current PETSc version and the API for accessing it are defined in petscversion.h
2299 
2300     The complete version number is given as the triple  PETSC_VERSION_MAJOR.PETSC_VERSION_MINOR.PETSC_VERSION_SUBMINOR (in short hand x.y.z)
2301 
2302     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
2303     where only a change in the major version number (x) indicates a change in the API.
2304 
2305     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
2306 
2307     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),
2308     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
2309     version number (x.y.z).
2310 
2311     PETSC_RELEASE_DATE is the date the x.y version was released (i.e. the version before any patch releases)
2312 
2313     PETSC_VERSION_DATE is the date the x.y.z version was released
2314 
2315     PETSC_VERSION_GIT is the last git commit to the repository given in the form vx.y.z-wwwww
2316 
2317     PETSC_VERSION_DATE_GIT is the date of the last git commit to the repository
2318 
2319     PETSC_VERSION_() is deprecated and will eventually be removed.
2320 
2321     Level: intermediate
2322 
2323 M*/
2324 
2325 PETSC_EXTERN PetscErrorCode PetscGetArchType(char[],size_t);
2326 PETSC_EXTERN PetscErrorCode PetscGetHostName(char[],size_t);
2327 PETSC_EXTERN PetscErrorCode PetscGetUserName(char[],size_t);
2328 PETSC_EXTERN PetscErrorCode PetscGetProgramName(char[],size_t);
2329 PETSC_EXTERN PetscErrorCode PetscSetProgramName(const char[]);
2330 PETSC_EXTERN PetscErrorCode PetscGetDate(char[],size_t);
2331 PETSC_EXTERN PetscErrorCode PetscGetVersion(char[], size_t);
2332 PETSC_EXTERN PetscErrorCode PetscGetVersionNumber(PetscInt*,PetscInt*,PetscInt*,PetscInt*);
2333 
2334 PETSC_EXTERN PetscErrorCode PetscSortedInt(PetscInt,const PetscInt[],PetscBool*);
2335 PETSC_EXTERN PetscErrorCode PetscSortedMPIInt(PetscInt,const PetscMPIInt[],PetscBool*);
2336 PETSC_EXTERN PetscErrorCode PetscSortedReal(PetscInt,const PetscReal[],PetscBool*);
2337 PETSC_EXTERN PetscErrorCode PetscSortInt(PetscInt,PetscInt[]);
2338 PETSC_EXTERN PetscErrorCode PetscSortReverseInt(PetscInt,PetscInt[]);
2339 PETSC_EXTERN PetscErrorCode PetscSortedRemoveDupsInt(PetscInt*,PetscInt[]);
2340 PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsInt(PetscInt*,PetscInt[]);
2341 PETSC_EXTERN PetscErrorCode PetscCheckDupsInt(PetscInt,const PetscInt[],PetscBool*);
2342 PETSC_EXTERN PetscErrorCode PetscFindInt(PetscInt, PetscInt, const PetscInt[], PetscInt*);
2343 PETSC_EXTERN PetscErrorCode PetscFindMPIInt(PetscMPIInt, PetscInt, const PetscMPIInt[], PetscInt*);
2344 PETSC_EXTERN PetscErrorCode PetscSortIntWithPermutation(PetscInt,const PetscInt[],PetscInt[]);
2345 PETSC_EXTERN PetscErrorCode PetscSortStrWithPermutation(PetscInt,const char*[],PetscInt[]);
2346 PETSC_EXTERN PetscErrorCode PetscSortIntWithArray(PetscInt,PetscInt[],PetscInt[]);
2347 PETSC_EXTERN PetscErrorCode PetscSortIntWithCountArray(PetscCount,PetscInt[],PetscCount[]);
2348 PETSC_EXTERN PetscErrorCode PetscSortIntWithArrayPair(PetscInt,PetscInt[],PetscInt[],PetscInt[]);
2349 PETSC_EXTERN PetscErrorCode PetscSortIntWithIntCountArrayPair(PetscCount,PetscInt[],PetscInt[],PetscCount[]);
2350 PETSC_EXTERN PetscErrorCode PetscSortMPIInt(PetscInt,PetscMPIInt[]);
2351 PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsMPIInt(PetscInt*,PetscMPIInt[]);
2352 PETSC_EXTERN PetscErrorCode PetscSortMPIIntWithArray(PetscMPIInt,PetscMPIInt[],PetscMPIInt[]);
2353 PETSC_EXTERN PetscErrorCode PetscSortMPIIntWithIntArray(PetscMPIInt,PetscMPIInt[],PetscInt[]);
2354 PETSC_EXTERN PetscErrorCode PetscSortIntWithScalarArray(PetscInt,PetscInt[],PetscScalar[]);
2355 PETSC_EXTERN PetscErrorCode PetscSortIntWithDataArray(PetscInt,PetscInt[],void*,size_t,void*);
2356 PETSC_EXTERN PetscErrorCode PetscSortReal(PetscInt,PetscReal[]);
2357 PETSC_EXTERN PetscErrorCode PetscSortRealWithArrayInt(PetscInt,PetscReal[],PetscInt[]);
2358 PETSC_EXTERN PetscErrorCode PetscSortRealWithPermutation(PetscInt,const PetscReal[],PetscInt[]);
2359 PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsReal(PetscInt*,PetscReal[]);
2360 PETSC_EXTERN PetscErrorCode PetscFindReal(PetscReal,PetscInt,const PetscReal[],PetscReal,PetscInt*);
2361 PETSC_EXTERN PetscErrorCode PetscSortSplit(PetscInt,PetscInt,PetscScalar[],PetscInt[]);
2362 PETSC_EXTERN PetscErrorCode PetscSortSplitReal(PetscInt,PetscInt,PetscReal[],PetscInt[]);
2363 PETSC_EXTERN PetscErrorCode PetscProcessTree(PetscInt,const PetscBool [],const PetscInt[],PetscInt*,PetscInt**,PetscInt**,PetscInt**,PetscInt**);
2364 PETSC_EXTERN PetscErrorCode PetscMergeIntArrayPair(PetscInt,const PetscInt[],const PetscInt[],PetscInt,const PetscInt[],const PetscInt[],PetscInt*,PetscInt**,PetscInt**);
2365 PETSC_EXTERN PetscErrorCode PetscMergeIntArray(PetscInt,const PetscInt[],PetscInt,const PetscInt[],PetscInt*,PetscInt**);
2366 PETSC_EXTERN PetscErrorCode PetscMergeMPIIntArray(PetscInt,const PetscMPIInt[],PetscInt,const PetscMPIInt[],PetscInt*,PetscMPIInt**);
2367 PETSC_EXTERN PetscErrorCode PetscParallelSortedInt(MPI_Comm, PetscInt, const PetscInt[], PetscBool *);
2368 
2369 PETSC_EXTERN PetscErrorCode PetscTimSort(PetscInt,void*,size_t,int(*)(const void*,const void*,void*),void*);
2370 PETSC_EXTERN PetscErrorCode PetscIntSortSemiOrdered(PetscInt,PetscInt[]);
2371 PETSC_EXTERN PetscErrorCode PetscMPIIntSortSemiOrdered(PetscInt,PetscMPIInt[]);
2372 PETSC_EXTERN PetscErrorCode PetscRealSortSemiOrdered(PetscInt,PetscReal[]);
2373 PETSC_EXTERN PetscErrorCode PetscTimSortWithArray(PetscInt,void*,size_t,void*,size_t,int(*)(const void*,const void*,void*),void*);
2374 PETSC_EXTERN PetscErrorCode PetscIntSortSemiOrderedWithArray(PetscInt,PetscInt[],PetscInt[]);
2375 PETSC_EXTERN PetscErrorCode PetscMPIIntSortSemiOrderedWithArray(PetscInt,PetscMPIInt[],PetscMPIInt[]);
2376 PETSC_EXTERN PetscErrorCode PetscRealSortSemiOrderedWithArrayInt(PetscInt,PetscReal[],PetscInt[]);
2377 
2378 PETSC_EXTERN PetscErrorCode PetscSetDisplay(void);
2379 PETSC_EXTERN PetscErrorCode PetscGetDisplay(char[],size_t);
2380 
2381 /*J
2382     PetscRandomType - String with the name of a PETSc randomizer
2383 
2384    Level: beginner
2385 
2386    Notes:
2387    To use SPRNG or RANDOM123 you must have ./configure PETSc
2388    with the option --download-sprng or --download-random123
2389 
2390 .seealso: PetscRandomSetType(), PetscRandom, PetscRandomCreate()
2391 J*/
2392 typedef const char* PetscRandomType;
2393 #define PETSCRAND       "rand"
2394 #define PETSCRAND48     "rand48"
2395 #define PETSCSPRNG      "sprng"
2396 #define PETSCRANDER48   "rander48"
2397 #define PETSCRANDOM123  "random123"
2398 #define PETSCCURAND     "curand"
2399 
2400 /* Logging support */
2401 PETSC_EXTERN PetscClassId PETSC_RANDOM_CLASSID;
2402 
2403 PETSC_EXTERN PetscErrorCode PetscRandomInitializePackage(void);
2404 
2405 /* Dynamic creation and loading functions */
2406 PETSC_EXTERN PetscFunctionList PetscRandomList;
2407 
2408 PETSC_EXTERN PetscErrorCode PetscRandomRegister(const char[],PetscErrorCode (*)(PetscRandom));
2409 PETSC_EXTERN PetscErrorCode PetscRandomSetType(PetscRandom,PetscRandomType);
2410 PETSC_EXTERN PetscErrorCode PetscRandomSetFromOptions(PetscRandom);
2411 PETSC_EXTERN PetscErrorCode PetscRandomGetType(PetscRandom,PetscRandomType*);
2412 PETSC_EXTERN PetscErrorCode PetscRandomViewFromOptions(PetscRandom,PetscObject,const char[]);
2413 PETSC_EXTERN PetscErrorCode PetscRandomView(PetscRandom,PetscViewer);
2414 
2415 PETSC_EXTERN PetscErrorCode PetscRandomCreate(MPI_Comm,PetscRandom*);
2416 PETSC_EXTERN PetscErrorCode PetscRandomGetValue(PetscRandom,PetscScalar*);
2417 PETSC_EXTERN PetscErrorCode PetscRandomGetValueReal(PetscRandom,PetscReal*);
2418 PETSC_EXTERN PetscErrorCode PetscRandomGetValues(PetscRandom,PetscInt,PetscScalar*);
2419 PETSC_EXTERN PetscErrorCode PetscRandomGetValuesReal(PetscRandom,PetscInt,PetscReal*);
2420 PETSC_EXTERN PetscErrorCode PetscRandomGetInterval(PetscRandom,PetscScalar*,PetscScalar*);
2421 PETSC_EXTERN PetscErrorCode PetscRandomSetInterval(PetscRandom,PetscScalar,PetscScalar);
2422 PETSC_EXTERN PetscErrorCode PetscRandomSetSeed(PetscRandom,unsigned long);
2423 PETSC_EXTERN PetscErrorCode PetscRandomGetSeed(PetscRandom,unsigned long *);
2424 PETSC_EXTERN PetscErrorCode PetscRandomSeed(PetscRandom);
2425 PETSC_EXTERN PetscErrorCode PetscRandomDestroy(PetscRandom*);
2426 
2427 PETSC_EXTERN PetscErrorCode PetscGetFullPath(const char[],char[],size_t);
2428 PETSC_EXTERN PetscErrorCode PetscGetRelativePath(const char[],char[],size_t);
2429 PETSC_EXTERN PetscErrorCode PetscGetWorkingDirectory(char[],size_t);
2430 PETSC_EXTERN PetscErrorCode PetscGetRealPath(const char[],char[]);
2431 PETSC_EXTERN PetscErrorCode PetscGetHomeDirectory(char[],size_t);
2432 PETSC_EXTERN PetscErrorCode PetscTestFile(const char[],char,PetscBool *);
2433 PETSC_EXTERN PetscErrorCode PetscTestDirectory(const char[],char,PetscBool *);
2434 PETSC_EXTERN PetscErrorCode PetscMkdir(const char[]);
2435 PETSC_EXTERN PetscErrorCode PetscMkdtemp(char[]);
2436 PETSC_EXTERN PetscErrorCode PetscRMTree(const char[]);
2437 
2438 static inline PetscBool PetscBinaryBigEndian(void) {long _petsc_v = 1; return ((char*)&_petsc_v)[0] ? PETSC_FALSE : PETSC_TRUE;}
2439 
2440 PETSC_EXTERN PetscErrorCode PetscBinaryRead(int,void*,PetscInt,PetscInt*,PetscDataType);
2441 PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedRead(MPI_Comm,int,void*,PetscInt,PetscInt*,PetscDataType);
2442 PETSC_EXTERN PetscErrorCode PetscBinaryWrite(int,const void*,PetscInt,PetscDataType);
2443 PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedWrite(MPI_Comm,int,const void*,PetscInt,PetscDataType);
2444 PETSC_EXTERN PetscErrorCode PetscBinaryOpen(const char[],PetscFileMode,int *);
2445 PETSC_EXTERN PetscErrorCode PetscBinaryClose(int);
2446 PETSC_EXTERN PetscErrorCode PetscSharedTmp(MPI_Comm,PetscBool  *);
2447 PETSC_EXTERN PetscErrorCode PetscSharedWorkingDirectory(MPI_Comm,PetscBool  *);
2448 PETSC_EXTERN PetscErrorCode PetscGetTmp(MPI_Comm,char[],size_t);
2449 PETSC_EXTERN PetscErrorCode PetscFileRetrieve(MPI_Comm,const char[],char[],size_t,PetscBool *);
2450 PETSC_EXTERN PetscErrorCode PetscLs(MPI_Comm,const char[],char[],size_t,PetscBool *);
2451 #if defined(PETSC_USE_SOCKET_VIEWER)
2452 PETSC_EXTERN PetscErrorCode PetscOpenSocket(const char[],int,int*);
2453 #endif
2454 
2455 PETSC_EXTERN PetscErrorCode PetscBinarySeek(int,off_t,PetscBinarySeekType,off_t*);
2456 PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedSeek(MPI_Comm,int,off_t,PetscBinarySeekType,off_t*);
2457 PETSC_EXTERN PetscErrorCode PetscByteSwap(void *,PetscDataType,PetscInt);
2458 
2459 PETSC_EXTERN PetscErrorCode PetscSetDebugTerminal(const char[]);
2460 PETSC_EXTERN PetscErrorCode PetscSetDebugger(const char[],PetscBool);
2461 PETSC_EXTERN PetscErrorCode PetscSetDefaultDebugger(void);
2462 PETSC_EXTERN PetscErrorCode PetscSetDebuggerFromString(const char*);
2463 PETSC_EXTERN PetscErrorCode PetscAttachDebugger(void);
2464 PETSC_EXTERN PetscErrorCode PetscStopForDebugger(void);
2465 PETSC_EXTERN PetscErrorCode PetscWaitOnError(void);
2466 
2467 PETSC_EXTERN PetscErrorCode PetscGatherNumberOfMessages(MPI_Comm,const PetscMPIInt[],const PetscMPIInt[],PetscMPIInt*);
2468 PETSC_EXTERN PetscErrorCode PetscGatherMessageLengths(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],PetscMPIInt**,PetscMPIInt**);
2469 PETSC_EXTERN PetscErrorCode PetscGatherMessageLengths2(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],const PetscMPIInt[],PetscMPIInt**,PetscMPIInt**,PetscMPIInt**);
2470 PETSC_EXTERN PetscErrorCode PetscPostIrecvInt(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],const PetscMPIInt[],PetscInt***,MPI_Request**);
2471 PETSC_EXTERN PetscErrorCode PetscPostIrecvScalar(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],const PetscMPIInt[],PetscScalar***,MPI_Request**);
2472 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSided(MPI_Comm,PetscMPIInt,MPI_Datatype,PetscMPIInt,const PetscMPIInt*,const void*,PetscMPIInt*,PetscMPIInt**,void*)
2473   PetscAttrMPIPointerWithType(6,3);
2474 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedF(MPI_Comm,PetscMPIInt,MPI_Datatype,PetscMPIInt,const PetscMPIInt[],const void*,PetscMPIInt*,PetscMPIInt**,void*,PetscMPIInt,
2475                                                     PetscErrorCode (*send)(MPI_Comm,const PetscMPIInt[],PetscMPIInt,PetscMPIInt,void*,MPI_Request[],void*),
2476                                                     PetscErrorCode (*recv)(MPI_Comm,const PetscMPIInt[],PetscMPIInt,void*,MPI_Request[],void*),void *ctx)
2477   PetscAttrMPIPointerWithType(6,3);
2478 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedFReq(MPI_Comm,PetscMPIInt,MPI_Datatype,PetscMPIInt,const PetscMPIInt[],const void*,PetscMPIInt*,PetscMPIInt**,void*,PetscMPIInt,
2479                                                        MPI_Request**,MPI_Request**,
2480                                                        PetscErrorCode (*send)(MPI_Comm,const PetscMPIInt[],PetscMPIInt,PetscMPIInt,void*,MPI_Request[],void*),
2481                                                        PetscErrorCode (*recv)(MPI_Comm,const PetscMPIInt[],PetscMPIInt,void*,MPI_Request[],void*),void *ctx)
2482   PetscAttrMPIPointerWithType(6,3);
2483 
2484 PETSC_EXTERN const char *const PetscBuildTwoSidedTypes[];
2485 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedSetType(MPI_Comm,PetscBuildTwoSidedType);
2486 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedGetType(MPI_Comm,PetscBuildTwoSidedType*);
2487 
2488 PETSC_EXTERN PetscErrorCode PetscSSEIsEnabled(MPI_Comm,PetscBool*,PetscBool*);
2489 
2490 PETSC_EXTERN MPI_Comm PetscObjectComm(PetscObject);
2491 
2492 PETSC_EXTERN const char *const PetscSubcommTypes[];
2493 
2494 struct _n_PetscSubcomm {
2495   MPI_Comm         parent;           /* parent communicator */
2496   MPI_Comm         dupparent;        /* duplicate parent communicator, under which the processors of this subcomm have contiguous rank */
2497   MPI_Comm         child;            /* the sub-communicator */
2498   PetscMPIInt      n;                /* num of subcommunicators under the parent communicator */
2499   PetscMPIInt      color;            /* color of processors belong to this communicator */
2500   PetscMPIInt      *subsize;         /* size of subcommunicator[color] */
2501   PetscSubcommType type;
2502   char             *subcommprefix;
2503 };
2504 
2505 static inline MPI_Comm PetscSubcommParent(PetscSubcomm scomm) {return scomm->parent;}
2506 static inline MPI_Comm PetscSubcommChild(PetscSubcomm scomm) {return scomm->child;}
2507 static inline MPI_Comm PetscSubcommContiguousParent(PetscSubcomm scomm) {return scomm->dupparent;}
2508 PETSC_EXTERN PetscErrorCode PetscSubcommCreate(MPI_Comm,PetscSubcomm*);
2509 PETSC_EXTERN PetscErrorCode PetscSubcommDestroy(PetscSubcomm*);
2510 PETSC_EXTERN PetscErrorCode PetscSubcommSetNumber(PetscSubcomm,PetscInt);
2511 PETSC_EXTERN PetscErrorCode PetscSubcommSetType(PetscSubcomm,PetscSubcommType);
2512 PETSC_EXTERN PetscErrorCode PetscSubcommSetTypeGeneral(PetscSubcomm,PetscMPIInt,PetscMPIInt);
2513 PETSC_EXTERN PetscErrorCode PetscSubcommView(PetscSubcomm,PetscViewer);
2514 PETSC_EXTERN PetscErrorCode PetscSubcommSetFromOptions(PetscSubcomm);
2515 PETSC_EXTERN PetscErrorCode PetscSubcommSetOptionsPrefix(PetscSubcomm,const char[]);
2516 PETSC_EXTERN PetscErrorCode PetscSubcommGetParent(PetscSubcomm,MPI_Comm*);
2517 PETSC_EXTERN PetscErrorCode PetscSubcommGetContiguousParent(PetscSubcomm,MPI_Comm*);
2518 PETSC_EXTERN PetscErrorCode PetscSubcommGetChild(PetscSubcomm,MPI_Comm*);
2519 
2520 PETSC_EXTERN PetscErrorCode PetscHeapCreate(PetscInt,PetscHeap*);
2521 PETSC_EXTERN PetscErrorCode PetscHeapAdd(PetscHeap,PetscInt,PetscInt);
2522 PETSC_EXTERN PetscErrorCode PetscHeapPop(PetscHeap,PetscInt*,PetscInt*);
2523 PETSC_EXTERN PetscErrorCode PetscHeapPeek(PetscHeap,PetscInt*,PetscInt*);
2524 PETSC_EXTERN PetscErrorCode PetscHeapStash(PetscHeap,PetscInt,PetscInt);
2525 PETSC_EXTERN PetscErrorCode PetscHeapUnstash(PetscHeap);
2526 PETSC_EXTERN PetscErrorCode PetscHeapDestroy(PetscHeap*);
2527 PETSC_EXTERN PetscErrorCode PetscHeapView(PetscHeap,PetscViewer);
2528 
2529 PETSC_EXTERN PetscErrorCode PetscProcessPlacementView(PetscViewer);
2530 PETSC_EXTERN PetscErrorCode PetscShmCommGet(MPI_Comm,PetscShmComm*);
2531 PETSC_EXTERN PetscErrorCode PetscShmCommGlobalToLocal(PetscShmComm,PetscMPIInt,PetscMPIInt*);
2532 PETSC_EXTERN PetscErrorCode PetscShmCommLocalToGlobal(PetscShmComm,PetscMPIInt,PetscMPIInt*);
2533 PETSC_EXTERN PetscErrorCode PetscShmCommGetMpiShmComm(PetscShmComm,MPI_Comm*);
2534 
2535 /* routines to better support OpenMP multithreading needs of some PETSc third party libraries */
2536 PETSC_EXTERN PetscErrorCode PetscOmpCtrlCreate(MPI_Comm,PetscInt,PetscOmpCtrl*);
2537 PETSC_EXTERN PetscErrorCode PetscOmpCtrlGetOmpComms(PetscOmpCtrl,MPI_Comm*,MPI_Comm*,PetscBool*);
2538 PETSC_EXTERN PetscErrorCode PetscOmpCtrlDestroy(PetscOmpCtrl*);
2539 PETSC_EXTERN PetscErrorCode PetscOmpCtrlBarrier(PetscOmpCtrl);
2540 PETSC_EXTERN PetscErrorCode PetscOmpCtrlOmpRegionOnMasterBegin(PetscOmpCtrl);
2541 PETSC_EXTERN PetscErrorCode PetscOmpCtrlOmpRegionOnMasterEnd(PetscOmpCtrl);
2542 
2543 PETSC_EXTERN PetscErrorCode PetscSegBufferCreate(size_t,size_t,PetscSegBuffer*);
2544 PETSC_EXTERN PetscErrorCode PetscSegBufferDestroy(PetscSegBuffer*);
2545 PETSC_EXTERN PetscErrorCode PetscSegBufferGet(PetscSegBuffer,size_t,void*);
2546 PETSC_EXTERN PetscErrorCode PetscSegBufferExtractAlloc(PetscSegBuffer,void*);
2547 PETSC_EXTERN PetscErrorCode PetscSegBufferExtractTo(PetscSegBuffer,void*);
2548 PETSC_EXTERN PetscErrorCode PetscSegBufferExtractInPlace(PetscSegBuffer,void*);
2549 PETSC_EXTERN PetscErrorCode PetscSegBufferGetSize(PetscSegBuffer,size_t*);
2550 PETSC_EXTERN PetscErrorCode PetscSegBufferUnuse(PetscSegBuffer,size_t);
2551 
2552 /* Type-safe wrapper to encourage use of PETSC_RESTRICT. Does not use PetscFunctionBegin because the error handling
2553  * prevents the compiler from completely erasing the stub. This is called in inner loops so it has to be as fast as
2554  * possible. */
2555 static inline PetscErrorCode PetscSegBufferGetInts(PetscSegBuffer seg,size_t count,PetscInt *PETSC_RESTRICT *slot) {return PetscSegBufferGet(seg,count,(void**)slot);}
2556 
2557 extern PetscOptionsHelpPrinted PetscOptionsHelpPrintedSingleton;
2558 PETSC_EXTERN PetscErrorCode PetscOptionsHelpPrintedDestroy(PetscOptionsHelpPrinted*);
2559 PETSC_EXTERN PetscErrorCode PetscOptionsHelpPrintedCreate(PetscOptionsHelpPrinted*);
2560 PETSC_EXTERN PetscErrorCode PetscOptionsHelpPrintedCheck(PetscOptionsHelpPrinted,const char*,const char*,PetscBool*);
2561 
2562 #include <stdarg.h>
2563 PETSC_EXTERN PetscErrorCode PetscVSNPrintf(char*,size_t,const char[],size_t*,va_list);
2564 PETSC_EXTERN PetscErrorCode (*PetscVFPrintf)(FILE*,const char[],va_list);
2565 
2566 PETSC_EXTERN PetscSegBuffer PetscCitationsList;
2567 
2568 /*@C
2569       PetscCitationsRegister - Register a bibtex item to obtain credit for an implemented algorithm used in the code.
2570 
2571      Not Collective - only what is registered on rank 0 of PETSC_COMM_WORLD will be printed
2572 
2573      Input Parameters:
2574 +      cite - the bibtex item, formated to displayed on multiple lines nicely
2575 -      set - a boolean variable initially set to PETSC_FALSE; this is used to insure only a single registration of the citation
2576 
2577    Level: intermediate
2578 
2579    Not available from Fortran
2580 
2581      Options Database:
2582 .     -citations [filename]   - print out the bibtex entries for the given computation
2583 @*/
2584 static inline PetscErrorCode PetscCitationsRegister(const char cit[],PetscBool *set)
2585 {
2586   size_t         len;
2587   char           *vstring;
2588   PetscErrorCode ierr;
2589 
2590   PetscFunctionBegin;
2591   if (set && *set) PetscFunctionReturn(0);
2592   ierr = PetscStrlen(cit,&len);CHKERRQ(ierr);
2593   ierr = PetscSegBufferGet(PetscCitationsList,len,&vstring);CHKERRQ(ierr);
2594   ierr = PetscArraycpy(vstring,cit,len);CHKERRQ(ierr);
2595   if (set) *set = PETSC_TRUE;
2596   PetscFunctionReturn(0);
2597 }
2598 
2599 PETSC_EXTERN PetscErrorCode PetscURLShorten(const char[],char[],size_t);
2600 PETSC_EXTERN PetscErrorCode PetscGoogleDriveAuthorize(MPI_Comm,char[],char[],size_t);
2601 PETSC_EXTERN PetscErrorCode PetscGoogleDriveRefresh(MPI_Comm,const char[],char[],size_t);
2602 PETSC_EXTERN PetscErrorCode PetscGoogleDriveUpload(MPI_Comm,const char[],const char []);
2603 
2604 PETSC_EXTERN PetscErrorCode PetscBoxAuthorize(MPI_Comm,char[],char[],size_t);
2605 PETSC_EXTERN PetscErrorCode PetscBoxRefresh(MPI_Comm,const char[],char[],char[],size_t);
2606 
2607 PETSC_EXTERN PetscErrorCode PetscGlobusGetTransfers(MPI_Comm,const char[],char[],size_t);
2608 
2609 PETSC_EXTERN PetscErrorCode PetscTextBelt(MPI_Comm,const char[],const char[],PetscBool*);
2610 PETSC_EXTERN PetscErrorCode PetscTellMyCell(MPI_Comm,const char[],const char[],PetscBool*);
2611 
2612 PETSC_EXTERN PetscErrorCode PetscPullJSONValue(const char[],const char[],char[],size_t,PetscBool*);
2613 PETSC_EXTERN PetscErrorCode PetscPushJSONValue(char[],const char[],const char[],size_t);
2614 
2615 #if defined(PETSC_USE_DEBUG)
2616 static inline unsigned int PetscStrHash(const char *str)
2617 {
2618   unsigned int c,hash = 5381;
2619 
2620   while ((c = (unsigned int)*str++)) hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
2621   return hash;
2622 }
2623 
2624 /*MC
2625    MPIU_Allreduce - a PETSc replacement for MPI_Allreduce() that tries to determine if the call from all the MPI processes occur from the
2626                     same place in the PETSc code. This helps to detect bugs where different MPI processes follow different code paths
2627                     resulting in inconsistent and incorrect calls to MPI_Allreduce().
2628 
2629    Collective
2630 
2631    Synopsis:
2632      #include <petscsys.h>
2633      PetscErrorCode MPIU_Allreduce(void *indata,void *outdata,PetscMPIInt count,MPI_Datatype datatype, MPI_Op op, MPI_Comm comm);
2634 
2635    Input Parameters:
2636 +  a - pointer to the input data to be reduced
2637 .  c - the number of MPI data items in a and b
2638 .  d - the MPI datatype, for example MPI_INT
2639 .  e - the MPI operation, for example MPI_SUM
2640 -  fcomm - the MPI communicator on which the operation occurs
2641 
2642    Output Parameter:
2643 .  b - the reduced values
2644 
2645    Notes:
2646      In optimized mode this directly calls MPI_Allreduce()
2647 
2648      This is defined as a macro that can return error codes internally so it cannot be used in a subroutine that returns void.
2649 
2650      The error code this returns should be checked with CHKERRMPI()
2651 
2652    Level: developer
2653 
2654 .seealso: MPI_Allreduce()
2655 M*/
2656 #define MPIU_Allreduce(a,b,c,d,e,fcomm) MPI_SUCCESS; do {               \
2657   PetscErrorCode _4_ierr;                                               \
2658   PetscMPIInt    a_b1[6],a_b2[6];                                       \
2659   int            _mpiu_allreduce_c_int = (int)c;                        \
2660   a_b1[0] = -(PetscMPIInt)__LINE__;                          a_b1[1] = -a_b1[0];\
2661   a_b1[2] = -(PetscMPIInt)PetscStrHash(PETSC_FUNCTION_NAME); a_b1[3] = -a_b1[2];\
2662   a_b1[4] = -(PetscMPIInt)(c);                               a_b1[5] = -a_b1[4];\
2663   _4_ierr = MPI_Allreduce(a_b1,a_b2,6,MPI_INT,MPI_MAX,fcomm);CHKERRMPI(_4_ierr);\
2664   PetscCheck(-a_b2[0] == a_b2[1],PETSC_COMM_SELF,PETSC_ERR_PLIB,"MPI_Allreduce() called in different locations (code lines) on different processors");\
2665   PetscCheck(-a_b2[2] == a_b2[3],PETSC_COMM_SELF,PETSC_ERR_PLIB,"MPI_Allreduce() called in different locations (functions) on different processors");\
2666   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); \
2667   _4_ierr = MPI_Allreduce((a),(b),(c),d,e,(fcomm));CHKERRMPI(_4_ierr);\
2668   } while (0)
2669 #else
2670 #define MPIU_Allreduce(a,b,c,d,e,fcomm) MPI_Allreduce((a),(b),(c),d,e,(fcomm))
2671 #endif
2672 
2673 #if defined(PETSC_HAVE_MPI_PROCESS_SHARED_MEMORY)
2674 PETSC_EXTERN PetscErrorCode MPIU_Win_allocate_shared(MPI_Aint,PetscMPIInt,MPI_Info,MPI_Comm,void*,MPI_Win*);
2675 PETSC_EXTERN PetscErrorCode MPIU_Win_shared_query(MPI_Win,PetscMPIInt,MPI_Aint*,PetscMPIInt*,void*);
2676 #endif
2677 
2678 /* this is a vile hack */
2679 #if defined(PETSC_HAVE_NECMPI)
2680 #if !defined(PETSC_NECMPI_VERSION_MAJOR) ||                              \
2681     !defined(PETSC_NECMPI_VERSION_MINOR) ||                              \
2682     PETSC_NECMPI_VERSION_MAJOR < 2       ||                              \
2683     (PETSC_NECMPI_VERSION_MAJOR == 2 && PETSC_NECMPI_VERSION_MINOR < 18)
2684 #define MPI_Type_free(a) (*(a) = MPI_DATATYPE_NULL,0);
2685 #endif
2686 #endif
2687 
2688 /*
2689     List of external packages and queries on it
2690 */
2691 PETSC_EXTERN PetscErrorCode  PetscHasExternalPackage(const char[],PetscBool*);
2692 
2693 /*
2694  OpenMP support
2695 */
2696 #if defined(_OPENMP)
2697 #define PetscPragmaOMP(...) _Pragma(PetscStringize(omp __VA_ARGS__))
2698 #else // no OpenMP so no threads
2699 #define PetscPragmaOMP(...)
2700 #endif
2701 
2702 #endif
2703