xref: /petsc/include/petscsys.h (revision cb3ff29fa5c880872e59c11fa7fc2fbe1f738e0e)
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    Portions of this code are under:
5    Copyright (c) 2022 Advanced Micro Devices, Inc. All rights reserved.
6 */
7 #pragma once
8 
9 /* ========================================================================== */
10 /*
11    petscconf.h is contained in ${PETSC_ARCH}/include/petscconf.h it is
12    found automatically by the compiler due to the -I${PETSC_DIR}/${PETSC_ARCH}/include that
13    PETSc's makefiles add to the compiler rules.
14    For --prefix installs the directory ${PETSC_ARCH} does not exist and petscconf.h is in the same
15    directory as the other PETSc include files.
16 */
17 #include <petscconf.h>
18 #include <petscconf_poison.h>
19 #include <petscfix.h>
20 #include <petscmacros.h>
21 
22 /* SUBMANSEC = Sys */
23 
24 #if defined(PETSC_DESIRE_FEATURE_TEST_MACROS)
25   /*
26    Feature test macros must be included before headers defined by IEEE Std 1003.1-2001
27    We only turn these in PETSc source files that require them by setting PETSC_DESIRE_FEATURE_TEST_MACROS
28 */
29   #if defined(PETSC__POSIX_C_SOURCE_200112L) && !defined(_POSIX_C_SOURCE)
30     #define _POSIX_C_SOURCE 200112L
31   #endif
32   #if defined(PETSC__BSD_SOURCE) && !defined(_BSD_SOURCE)
33     #define _BSD_SOURCE
34   #endif
35   #if defined(PETSC__DEFAULT_SOURCE) && !defined(_DEFAULT_SOURCE)
36     #define _DEFAULT_SOURCE
37   #endif
38   #if defined(PETSC__GNU_SOURCE) && !defined(_GNU_SOURCE)
39     #define _GNU_SOURCE
40   #endif
41 #endif
42 
43 #include <petscsystypes.h>
44 
45 /* ========================================================================== */
46 
47 /*
48     Defines the interface to MPI allowing the use of all MPI functions.
49 
50     PETSc does not use the C++ binding of MPI at ALL. The following flag
51     makes sure the C++ bindings are not included. The C++ bindings REQUIRE
52     putting mpi.h before ANY C++ include files, we cannot control this
53     with all PETSc users. Users who want to use the MPI C++ bindings can include
54     mpicxx.h directly in their code
55 */
56 #if !defined(MPICH_SKIP_MPICXX)
57   #define MPICH_SKIP_MPICXX 1
58 #endif
59 #if !defined(OMPI_SKIP_MPICXX)
60   #define OMPI_SKIP_MPICXX 1
61 #endif
62 #if defined(PETSC_HAVE_MPIUNI)
63   #include <petsc/mpiuni/mpi.h>
64 #else
65   #include <mpi.h>
66 #endif
67 
68 /*
69    Perform various sanity checks that the correct mpi.h is being included at compile time.
70    This usually happens because
71       * either an unexpected mpi.h is in the default compiler path (i.e. in /usr/include) or
72       * an extra include path -I/something (which contains the unexpected mpi.h) is being passed to the compiler
73 */
74 #if defined(PETSC_HAVE_MPIUNI)
75   #ifndef MPIUNI_H
76     #error "PETSc was configured with --with-mpi=0 but now appears to be compiling using a different mpi.h"
77   #endif
78 #elif defined(PETSC_HAVE_I_MPI_NUMVERSION)
79   #if !defined(I_MPI_NUMVERSION)
80     #error "PETSc was configured with I_MPI but now appears to be compiling using a non-I_MPI mpi.h"
81   #elif I_MPI_NUMVERSION != PETSC_HAVE_I_MPI_NUMVERSION
82     #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"
83   #endif
84 #elif defined(PETSC_HAVE_MVAPICH2_NUMVERSION)
85   #if !defined(MVAPICH2_NUMVERSION)
86     #error "PETSc was configured with MVAPICH2 but now appears to be compiling using a non-MVAPICH2 mpi.h"
87   #elif MVAPICH2_NUMVERSION != PETSC_HAVE_MVAPICH2_NUMVERSION
88     #error "PETSc was configured with one MVAPICH2 mpi.h version but now appears to be compiling using a different MVAPICH2 mpi.h version"
89   #endif
90 #elif defined(PETSC_HAVE_MPICH_NUMVERSION)
91   #if !defined(MPICH_NUMVERSION) || defined(MVAPICH2_NUMVERSION) || defined(I_MPI_NUMVERSION)
92     #error "PETSc was configured with MPICH but now appears to be compiling using a non-MPICH mpi.h"
93   #elif (MPICH_NUMVERSION / 100000000 != PETSC_HAVE_MPICH_NUMVERSION / 100000000) || (MPICH_NUMVERSION / 100000 < PETSC_HAVE_MPICH_NUMVERSION / 100000) || (MPICH_NUMVERSION / 100000 == PETSC_HAVE_MPICH_NUMVERSION / 100000 && MPICH_NUMVERSION % 100000 / 1000 < PETSC_HAVE_MPICH_NUMVERSION % 100000 / 1000)
94     #error "PETSc was configured with one MPICH mpi.h version but now appears to be compiling using a different MPICH mpi.h version"
95   #endif
96 #elif defined(PETSC_HAVE_OMPI_MAJOR_VERSION)
97   #if !defined(OMPI_MAJOR_VERSION)
98     #error "PETSc was configured with Open MPI but now appears to be compiling using a non-Open MPI mpi.h"
99   #elif (OMPI_MAJOR_VERSION != PETSC_HAVE_OMPI_MAJOR_VERSION) || (OMPI_MINOR_VERSION < PETSC_HAVE_OMPI_MINOR_VERSION) || (OMPI_MINOR_VERSION == PETSC_HAVE_OMPI_MINOR_VERSION && OMPI_RELEASE_VERSION < PETSC_HAVE_OMPI_RELEASE_VERSION)
100     #error "PETSc was configured with one Open MPI mpi.h version but now appears to be compiling using a different Open MPI mpi.h version"
101   #endif
102 #elif defined(PETSC_HAVE_MSMPI_VERSION)
103   #if !defined(MSMPI_VER)
104     #error "PETSc was configured with MSMPI but now appears to be compiling using a non-MSMPI mpi.h"
105   #elif (MSMPI_VER != PETSC_HAVE_MSMPI_VERSION)
106     #error "PETSc was configured with one MSMPI mpi.h version but now appears to be compiling using a different MSMPI mpi.h version"
107   #endif
108 #elif defined(OMPI_MAJOR_VERSION) || defined(MPICH_NUMVERSION) || defined(MSMPI_VER)
109   #error "PETSc was configured with undetermined MPI - but now appears to be compiling using any of Open MPI, MS-MPI or a MPICH variant"
110 #endif
111 
112 /*
113     Need to put stdio.h AFTER mpi.h for MPICH2 with C++ compiler
114     see the top of mpicxx.h in the MPICH2 distribution.
115 */
116 #include <stdio.h>
117 
118 /* MSMPI on 32-bit Microsoft Windows requires this yukky hack - that breaks MPI standard compliance */
119 #if !defined(MPIAPI)
120   #define MPIAPI
121 #endif
122 
123 PETSC_EXTERN MPI_Datatype MPIU_ENUM PETSC_ATTRIBUTE_MPI_TYPE_TAG(PetscEnum);
124 PETSC_EXTERN MPI_Datatype MPIU_BOOL PETSC_ATTRIBUTE_MPI_TYPE_TAG(PetscBool);
125 
126 /*MC
127    MPIU_INT - Portable MPI datatype corresponding to `PetscInt` independent of the precision of `PetscInt`
128 
129    Level: beginner
130 
131    Note:
132    In MPI calls that require an MPI datatype that matches a `PetscInt` or array of `PetscInt` values, pass this value.
133 
134 .seealso: `PetscReal`, `PetscScalar`, `PetscComplex`, `PetscInt`, `MPIU_COUNT`, `MPIU_REAL`, `MPIU_SCALAR`, `MPIU_COMPLEX`
135 M*/
136 
137 PETSC_EXTERN MPI_Datatype MPIU_FORTRANADDR;
138 
139 #if defined(PETSC_USE_64BIT_INDICES)
140   #define MPIU_INT MPIU_INT64
141 #else
142   #define MPIU_INT MPI_INT
143 #endif
144 
145 /*MC
146    MPIU_COUNT - Portable MPI datatype corresponding to `PetscCount` independent of the precision of `PetscCount`
147 
148    Level: beginner
149 
150    Note:
151    In MPI calls that require an MPI datatype that matches a `PetscCount` or array of `PetscCount` values, pass this value.
152 
153   Developer Note:
154   It seems `MPI_AINT` is unsigned so this may be the wrong choice here since `PetscCount` is signed
155 
156 .seealso: `PetscReal`, `PetscScalar`, `PetscComplex`, `PetscInt`, `MPIU_INT`, `MPIU_REAL`, `MPIU_SCALAR`, `MPIU_COMPLEX`
157 M*/
158 #define MPIU_COUNT MPI_AINT
159 
160 /*
161     For the rare cases when one needs to send a size_t object with MPI
162 */
163 PETSC_EXTERN MPI_Datatype MPIU_SIZE_T PETSC_ATTRIBUTE_MPI_TYPE_TAG(size_t);
164 
165 /*
166       You can use PETSC_STDOUT as a replacement of stdout. You can also change
167     the value of PETSC_STDOUT to redirect all standard output elsewhere
168 */
169 PETSC_EXTERN FILE *PETSC_STDOUT;
170 
171 /*
172       You can use PETSC_STDERR as a replacement of stderr. You can also change
173     the value of PETSC_STDERR to redirect all standard error elsewhere
174 */
175 PETSC_EXTERN FILE *PETSC_STDERR;
176 
177 /*
178   Handle inclusion when using clang compiler with CUDA support
179   __float128 is not available for the device
180 */
181 #if defined(__clang__) && defined(__CUDA_ARCH__)
182   #define PETSC_SKIP_REAL___FLOAT128
183 #endif
184 
185 /*
186     Declare extern C stuff after including external header files
187 */
188 
189 PETSC_EXTERN PetscBool PETSC_RUNNING_ON_VALGRIND;
190 /*
191     Defines elementary mathematics functions and constants.
192 */
193 #include <petscmath.h>
194 
195 /*MC
196     PETSC_IGNORE - same as `NULL`, means PETSc will ignore this argument
197 
198    Level: beginner
199 
200    Note:
201    Accepted by many PETSc functions to not set a parameter and instead use a default value
202 
203    Fortran Note:
204    Use `PETSC_NULL_INTEGER`, `PETSC_NULL_DOUBLE_PRECISION` etc
205 
206 .seealso: `PETSC_DECIDE`, `PETSC_DEFAULT`, `PETSC_DETERMINE`
207 M*/
208 #define PETSC_IGNORE PETSC_NULLPTR
209 #define PETSC_NULL   PETSC_DEPRECATED_MACRO(3, 19, 0, "PETSC_NULLPTR", ) PETSC_NULLPTR
210 
211 /*MC
212     PETSC_DECIDE - standard way of passing in integer or floating point parameter
213        where you wish PETSc to use the default.
214 
215    Level: beginner
216 
217 .seealso: `PETSC_DEFAULT`, `PETSC_IGNORE`, `PETSC_DETERMINE`
218 M*/
219 
220 /*MC
221    PETSC_DETERMINE - standard way of passing in integer or floating point parameter where you wish PETSc to compute the required value.
222 
223    Level: beginner
224 
225    Developer Note:
226    I would like to use const `PetscInt` `PETSC_DETERMINE` = `PETSC_DECIDE`; but for
227    some reason this is not allowed by the standard even though `PETSC_DECIDE` is a constant value.
228 
229 .seealso: `PETSC_DECIDE`, `PETSC_DEFAULT`, `PETSC_IGNORE`, `VecSetSizes()`
230 M*/
231 
232 /*MC
233    PETSC_DEFAULT - standard way of passing in integer or floating point parameter where you wish PETSc to use the default.
234 
235    Level: beginner
236 
237    Fortran Note:
238    You need to use `PETSC_DEFAULT_INTEGER` or `PETSC_DEFAULT_REAL`.
239 
240 .seealso: `PETSC_DECIDE`, `PETSC_IGNORE`, `PETSC_DETERMINE`
241 M*/
242 
243 /* These MUST be preprocessor defines! see https://gitlab.com/petsc/petsc/-/issues/1370 */
244 #define PETSC_DECIDE    (-1)
245 #define PETSC_DETERMINE PETSC_DECIDE
246 #define PETSC_DEFAULT   (-2)
247 
248 /*MC
249    PETSC_COMM_WORLD - the equivalent of the `MPI_COMM_WORLD` communicator which represents all the processes that PETSc knows about.
250 
251    Level: beginner
252 
253    Notes:
254    By default `PETSC_COMM_WORLD` and `MPI_COMM_WORLD` are identical unless you wish to
255    run PETSc on ONLY a subset of `MPI_COMM_WORLD`. In that case create your new (smaller)
256    communicator, call it, say comm, and set `PETSC_COMM_WORLD` = comm BEFORE calling
257    `PetscInitialize()`, but after `MPI_Init()` has been called.
258 
259    The value of `PETSC_COMM_WORLD` should never be used or accessed before `PetscInitialize()`
260    is called because it may not have a valid value yet.
261 
262 .seealso: `PETSC_COMM_SELF`
263 M*/
264 PETSC_EXTERN MPI_Comm PETSC_COMM_WORLD;
265 
266 /*MC
267    PETSC_COMM_SELF - This is always `MPI_COMM_SELF`
268 
269    Level: beginner
270 
271    Note:
272    Do not USE/access or set this variable before `PetscInitialize()` has been called.
273 
274 .seealso: `PETSC_COMM_WORLD`
275 M*/
276 #define PETSC_COMM_SELF MPI_COMM_SELF
277 
278 /*MC
279    PETSC_MPI_THREAD_REQUIRED - the required threading support used if PETSc initializes MPI with `MPI_Init_thread()`.
280 
281    Level: beginner
282 
283    Note:
284    By default `PETSC_MPI_THREAD_REQUIRED` equals `MPI_THREAD_FUNNELED` when the MPI implementation provides MPI_Init_thread(), otherwise it equals `MPI_THREAD_SINGLE`
285 
286 .seealso: `PetscInitialize()`
287 M*/
288 PETSC_EXTERN PetscMPIInt PETSC_MPI_THREAD_REQUIRED;
289 
290 PETSC_EXTERN PetscBool PetscBeganMPI;
291 PETSC_EXTERN PetscBool PetscErrorHandlingInitialized;
292 PETSC_EXTERN PetscBool PetscInitializeCalled;
293 PETSC_EXTERN PetscBool PetscFinalizeCalled;
294 PETSC_EXTERN PetscBool PetscViennaCLSynchronize;
295 
296 PETSC_EXTERN PetscErrorCode PetscSetHelpVersionFunctions(PetscErrorCode (*)(MPI_Comm), PetscErrorCode (*)(MPI_Comm));
297 PETSC_EXTERN PetscErrorCode PetscCommDuplicate(MPI_Comm, MPI_Comm *, int *);
298 PETSC_EXTERN PetscErrorCode PetscCommDestroy(MPI_Comm *);
299 PETSC_EXTERN PetscErrorCode PetscCommGetComm(MPI_Comm, MPI_Comm *);
300 PETSC_EXTERN PetscErrorCode PetscCommRestoreComm(MPI_Comm, MPI_Comm *);
301 
302 #if defined(PETSC_HAVE_KOKKOS)
303 PETSC_EXTERN PetscErrorCode PetscKokkosInitializeCheck(void); /* Initialize Kokkos if not yet. */
304 #endif
305 
306 #if defined(PETSC_HAVE_NVSHMEM)
307 PETSC_EXTERN PetscBool      PetscBeganNvshmem;
308 PETSC_EXTERN PetscBool      PetscNvshmemInitialized;
309 PETSC_EXTERN PetscErrorCode PetscNvshmemFinalize(void);
310 #endif
311 
312 #if defined(PETSC_HAVE_ELEMENTAL)
313 PETSC_EXTERN PetscErrorCode PetscElementalInitializePackage(void);
314 PETSC_EXTERN PetscErrorCode PetscElementalInitialized(PetscBool *);
315 PETSC_EXTERN PetscErrorCode PetscElementalFinalizePackage(void);
316 #endif
317 
318 /*MC
319    PetscMalloc - Allocates memory, One should use `PetscNew()`, `PetscMalloc1()` or `PetscCalloc1()` usually instead of this
320 
321    Synopsis:
322     #include <petscsys.h>
323    PetscErrorCode PetscMalloc(size_t m,void **result)
324 
325    Not Collective
326 
327    Input Parameter:
328 .  m - number of bytes to allocate
329 
330    Output Parameter:
331 .  result - memory allocated
332 
333    Level: beginner
334 
335    Notes:
336    Memory is always allocated at least double aligned
337 
338    It is safe to allocate size 0 and pass the resulting pointer (which may or may not be `NULL`) to `PetscFree()`.
339 
340 .seealso: `PetscFree()`, `PetscNew()`
341 M*/
342 #define PetscMalloc(a, b) ((*PetscTrMalloc)((a), PETSC_FALSE, __LINE__, PETSC_FUNCTION_NAME, __FILE__, (void **)(b)))
343 
344 /*MC
345    PetscRealloc - Reallocates memory
346 
347    Synopsis:
348     #include <petscsys.h>
349    PetscErrorCode PetscRealloc(size_t m,void **result)
350 
351    Not Collective
352 
353    Input Parameters:
354 +  m - number of bytes to allocate
355 -  result - previous memory
356 
357    Output Parameter:
358 .  result - new memory allocated
359 
360    Level: developer
361 
362    Note:
363    Memory is always allocated at least double aligned
364 
365 .seealso: `PetscMalloc()`, `PetscFree()`, `PetscNew()`
366 M*/
367 #define PetscRealloc(a, b) ((*PetscTrRealloc)((a), __LINE__, PETSC_FUNCTION_NAME, __FILE__, (void **)(b)))
368 
369 /*MC
370    PetscAddrAlign - Rounds up an address to `PETSC_MEMALIGN` alignment
371 
372    Synopsis:
373     #include <petscsys.h>
374    void *PetscAddrAlign(void *addr)
375 
376    Not Collective
377 
378    Input Parameter:
379 .  addr - address to align (any pointer type)
380 
381    Level: developer
382 
383 .seealso: `PetscMallocAlign()`
384 M*/
385 #define PetscAddrAlign(a) ((void *)((((PETSC_UINTPTR_T)(a)) + (PETSC_MEMALIGN - 1)) & ~(PETSC_MEMALIGN - 1)))
386 
387 /*MC
388    PetscCalloc - Allocates a cleared (zeroed) memory region aligned to `PETSC_MEMALIGN`
389 
390    Synopsis:
391     #include <petscsys.h>
392    PetscErrorCode PetscCalloc(size_t m,void **result)
393 
394    Not Collective
395 
396    Input Parameter:
397 .  m - number of bytes to allocate
398 
399    Output Parameter:
400 .  result - memory allocated
401 
402    Level: beginner
403 
404    Notes:
405    Memory is always allocated at least double aligned. This macro is useful in allocating memory pointed by void pointers
406 
407    It is safe to allocate size 0 and pass the resulting pointer (which may or may not be `NULL`) to `PetscFree()`.
408 
409 .seealso: `PetscFree()`, `PetscNew()`
410 M*/
411 #define PetscCalloc(m, result) PetscMallocA(1, PETSC_TRUE, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ((size_t)m), (result))
412 
413 /*MC
414    PetscMalloc1 - Allocates an array of memory aligned to `PETSC_MEMALIGN`
415 
416    Synopsis:
417     #include <petscsys.h>
418    PetscErrorCode PetscMalloc1(size_t m1,type **r1)
419 
420    Not Collective
421 
422    Input Parameter:
423 .  m1 - number of elements to allocate  (may be zero)
424 
425    Output Parameter:
426 .  r1 - memory allocated
427 
428    Level: beginner
429 
430    Note:
431    This uses the sizeof() of the memory type requested to determine the total memory to be allocated, therefore you should not
432          multiply the number of elements requested by the `sizeof()` the type. For example use
433 .vb
434   PetscInt *id;
435   PetscMalloc1(10,&id);
436 .ve
437        not
438 .vb
439   PetscInt *id;
440   PetscMalloc1(10*sizeof(PetscInt),&id);
441 .ve
442 
443         Does not zero the memory allocated, use `PetscCalloc1()` to obtain memory that has been zeroed.
444 
445 .seealso: `PetscFree()`, `PetscNew()`, `PetscMalloc()`, `PetscCalloc1()`, `PetscMalloc2()`
446 M*/
447 #define PetscMalloc1(m1, r1) PetscMallocA(1, PETSC_FALSE, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ((size_t)((size_t)m1) * sizeof(**(r1))), (r1))
448 
449 /*MC
450    PetscCalloc1 - Allocates a cleared (zeroed) array of memory aligned to `PETSC_MEMALIGN`
451 
452    Synopsis:
453     #include <petscsys.h>
454    PetscErrorCode PetscCalloc1(size_t m1,type **r1)
455 
456    Not Collective
457 
458    Input Parameter:
459 .  m1 - number of elements to allocate in 1st chunk  (may be zero)
460 
461    Output Parameter:
462 .  r1 - memory allocated
463 
464    Level: beginner
465 
466    Note:
467    See `PetsMalloc1()` for more details on usage.
468 
469 .seealso: `PetscFree()`, `PetscNew()`, `PetscMalloc()`, `PetscMalloc1()`, `PetscCalloc2()`
470 M*/
471 #define PetscCalloc1(m1, r1) PetscMallocA(1, PETSC_TRUE, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ((size_t)((size_t)m1) * sizeof(**(r1))), (r1))
472 
473 /*MC
474    PetscMalloc2 - Allocates 2 arrays of memory both aligned to `PETSC_MEMALIGN`
475 
476    Synopsis:
477     #include <petscsys.h>
478    PetscErrorCode PetscMalloc2(size_t m1,type **r1,size_t m2,type **r2)
479 
480    Not Collective
481 
482    Input Parameters:
483 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
484 -  m2 - number of elements to allocate in 2nd chunk  (may be zero)
485 
486    Output Parameters:
487 +  r1 - memory allocated in first chunk
488 -  r2 - memory allocated in second chunk
489 
490    Level: developer
491 
492 .seealso: `PetscFree()`, `PetscNew()`, `PetscMalloc()`, `PetscMalloc1()`, `PetscCalloc2()`
493 M*/
494 #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))
495 
496 /*MC
497    PetscCalloc2 - Allocates 2 cleared (zeroed) arrays of memory both aligned to `PETSC_MEMALIGN`
498 
499    Synopsis:
500     #include <petscsys.h>
501    PetscErrorCode PetscCalloc2(size_t m1,type **r1,size_t m2,type **r2)
502 
503    Not Collective
504 
505    Input Parameters:
506 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
507 -  m2 - number of elements to allocate in 2nd chunk  (may be zero)
508 
509    Output Parameters:
510 +  r1 - memory allocated in first chunk
511 -  r2 - memory allocated in second chunk
512 
513    Level: developer
514 
515 .seealso: `PetscFree()`, `PetscNew()`, `PetscMalloc()`, `PetscCalloc1()`, `PetscMalloc2()`
516 M*/
517 #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))
518 
519 /*MC
520    PetscMalloc3 - Allocates 3 arrays of memory, all aligned to `PETSC_MEMALIGN`
521 
522    Synopsis:
523     #include <petscsys.h>
524    PetscErrorCode PetscMalloc3(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3)
525 
526    Not Collective
527 
528    Input Parameters:
529 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
530 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
531 -  m3 - number of elements to allocate in 3rd chunk  (may be zero)
532 
533    Output Parameters:
534 +  r1 - memory allocated in first chunk
535 .  r2 - memory allocated in second chunk
536 -  r3 - memory allocated in third chunk
537 
538    Level: developer
539 
540 .seealso: `PetscFree()`, `PetscNew()`, `PetscMalloc()`, `PetscMalloc2()`, `PetscCalloc3()`, `PetscFree3()`
541 M*/
542 #define PetscMalloc3(m1, r1, m2, r2, m3, r3) \
543   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))
544 
545 /*MC
546    PetscCalloc3 - Allocates 3 cleared (zeroed) arrays of memory, all aligned to `PETSC_MEMALIGN`
547 
548    Synopsis:
549     #include <petscsys.h>
550    PetscErrorCode PetscCalloc3(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3)
551 
552    Not Collective
553 
554    Input Parameters:
555 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
556 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
557 -  m3 - number of elements to allocate in 3rd chunk  (may be zero)
558 
559    Output Parameters:
560 +  r1 - memory allocated in first chunk
561 .  r2 - memory allocated in second chunk
562 -  r3 - memory allocated in third chunk
563 
564    Level: developer
565 
566 .seealso: `PetscFree()`, `PetscNew()`, `PetscMalloc()`, `PetscCalloc2()`, `PetscMalloc3()`, `PetscFree3()`
567 M*/
568 #define PetscCalloc3(m1, r1, m2, r2, m3, r3) \
569   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))
570 
571 /*MC
572    PetscMalloc4 - Allocates 4 arrays of memory, all aligned to `PETSC_MEMALIGN`
573 
574    Synopsis:
575     #include <petscsys.h>
576    PetscErrorCode PetscMalloc4(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4)
577 
578    Not Collective
579 
580    Input Parameters:
581 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
582 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
583 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
584 -  m4 - number of elements to allocate in 4th 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 -  r4 - memory allocated in fourth chunk
591 
592    Level: developer
593 
594 .seealso: `PetscFree()`, `PetscNew()`, `PetscMalloc()`, `PetscMalloc2()`, `PetscCalloc4()`, `PetscFree4()`
595 M*/
596 #define PetscMalloc4(m1, r1, m2, r2, m3, r3, m4, r4) \
597   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))
598 
599 /*MC
600    PetscCalloc4 - Allocates 4 cleared (zeroed) arrays of memory, all aligned to `PETSC_MEMALIGN`
601 
602    Synopsis:
603     #include <petscsys.h>
604    PetscErrorCode PetscCalloc4(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4)
605 
606    Not Collective
607 
608    Input Parameters:
609 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
610 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
611 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
612 -  m4 - number of elements to allocate in 4th chunk  (may be zero)
613 
614    Output Parameters:
615 +  r1 - memory allocated in first chunk
616 .  r2 - memory allocated in second chunk
617 .  r3 - memory allocated in third chunk
618 -  r4 - memory allocated in fourth chunk
619 
620    Level: developer
621 
622 .seealso: `PetscFree()`, `PetscNew()`, `PetscMalloc()`, `PetscMalloc2()`, `PetscCalloc4()`, `PetscFree4()`
623 M*/
624 #define PetscCalloc4(m1, r1, m2, r2, m3, r3, m4, r4) \
625   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))
626 
627 /*MC
628    PetscMalloc5 - Allocates 5 arrays of memory, all aligned to `PETSC_MEMALIGN`
629 
630    Synopsis:
631     #include <petscsys.h>
632    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)
633 
634    Not Collective
635 
636    Input Parameters:
637 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
638 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
639 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
640 .  m4 - number of elements to allocate in 4th chunk  (may be zero)
641 -  m5 - number of elements to allocate in 5th chunk  (may be zero)
642 
643    Output Parameters:
644 +  r1 - memory allocated in first chunk
645 .  r2 - memory allocated in second chunk
646 .  r3 - memory allocated in third chunk
647 .  r4 - memory allocated in fourth chunk
648 -  r5 - memory allocated in fifth chunk
649 
650    Level: developer
651 
652 .seealso: `PetscFree()`, `PetscNew()`, `PetscMalloc()`, `PetscMalloc2()`, `PetscCalloc5()`, `PetscFree5()`
653 M*/
654 #define PetscMalloc5(m1, r1, m2, r2, m3, r3, m4, r4, m5, r5) \
655   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))
656 
657 /*MC
658    PetscCalloc5 - Allocates 5 cleared (zeroed) arrays of memory, all aligned to `PETSC_MEMALIGN`
659 
660    Synopsis:
661     #include <petscsys.h>
662    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)
663 
664    Not Collective
665 
666    Input Parameters:
667 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
668 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
669 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
670 .  m4 - number of elements to allocate in 4th chunk  (may be zero)
671 -  m5 - number of elements to allocate in 5th chunk  (may be zero)
672 
673    Output Parameters:
674 +  r1 - memory allocated in first chunk
675 .  r2 - memory allocated in second chunk
676 .  r3 - memory allocated in third chunk
677 .  r4 - memory allocated in fourth chunk
678 -  r5 - memory allocated in fifth chunk
679 
680    Level: developer
681 
682 .seealso: `PetscFree()`, `PetscNew()`, `PetscMalloc()`, `PetscMalloc5()`, `PetscFree5()`
683 M*/
684 #define PetscCalloc5(m1, r1, m2, r2, m3, r3, m4, r4, m5, r5) \
685   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))
686 
687 /*MC
688    PetscMalloc6 - Allocates 6 arrays of memory, all aligned to `PETSC_MEMALIGN`
689 
690    Synopsis:
691     #include <petscsys.h>
692    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)
693 
694    Not Collective
695 
696    Input Parameters:
697 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
698 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
699 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
700 .  m4 - number of elements to allocate in 4th chunk  (may be zero)
701 .  m5 - number of elements to allocate in 5th chunk  (may be zero)
702 -  m6 - number of elements to allocate in 6th chunk  (may be zero)
703 
704    Output Parameteasr:
705 +  r1 - memory allocated in first chunk
706 .  r2 - memory allocated in second chunk
707 .  r3 - memory allocated in third chunk
708 .  r4 - memory allocated in fourth chunk
709 .  r5 - memory allocated in fifth chunk
710 -  r6 - memory allocated in sixth chunk
711 
712    Level: developer
713 
714 .seealso: `PetscFree()`, `PetscNew()`, `PetscMalloc()`, `PetscMalloc2()`, `PetscCalloc6()`, `PetscFree3()`, `PetscFree4()`, `PetscFree5()`, `PetscFree6()`
715 M*/
716 #define PetscMalloc6(m1, r1, m2, r2, m3, r3, m4, r4, m5, r5, m6, r6) \
717   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))
718 
719 /*MC
720    PetscCalloc6 - Allocates 6 cleared (zeroed) arrays of memory, all aligned to `PETSC_MEMALIGN`
721 
722    Synopsis:
723     #include <petscsys.h>
724    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)
725 
726    Not Collective
727 
728    Input Parameters:
729 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
730 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
731 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
732 .  m4 - number of elements to allocate in 4th chunk  (may be zero)
733 .  m5 - number of elements to allocate in 5th chunk  (may be zero)
734 -  m6 - number of elements to allocate in 6th chunk  (may be zero)
735 
736    Output Parameters:
737 +  r1 - memory allocated in first chunk
738 .  r2 - memory allocated in second chunk
739 .  r3 - memory allocated in third chunk
740 .  r4 - memory allocated in fourth chunk
741 .  r5 - memory allocated in fifth chunk
742 -  r6 - memory allocated in sixth chunk
743 
744    Level: developer
745 
746 .seealso: `PetscFree()`, `PetscNew()`, `PetscMalloc()`, `PetscMalloc2()`, `PetscMalloc6()`, `PetscFree6()`
747 M*/
748 #define PetscCalloc6(m1, r1, m2, r2, m3, r3, m4, r4, m5, r5, m6, r6) \
749   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))
750 
751 /*MC
752    PetscMalloc7 - Allocates 7 arrays of memory, all aligned to `PETSC_MEMALIGN`
753 
754    Synopsis:
755     #include <petscsys.h>
756    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)
757 
758    Not Collective
759 
760    Input Parameters:
761 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
762 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
763 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
764 .  m4 - number of elements to allocate in 4th chunk  (may be zero)
765 .  m5 - number of elements to allocate in 5th chunk  (may be zero)
766 .  m6 - number of elements to allocate in 6th chunk  (may be zero)
767 -  m7 - number of elements to allocate in 7th chunk  (may be zero)
768 
769    Output Parameters:
770 +  r1 - memory allocated in first chunk
771 .  r2 - memory allocated in second chunk
772 .  r3 - memory allocated in third chunk
773 .  r4 - memory allocated in fourth chunk
774 .  r5 - memory allocated in fifth chunk
775 .  r6 - memory allocated in sixth chunk
776 -  r7 - memory allocated in seventh chunk
777 
778    Level: developer
779 
780 .seealso: `PetscFree()`, `PetscNew()`, `PetscMalloc()`, `PetscMalloc2()`, `PetscCalloc7()`, `PetscFree7()`
781 M*/
782 #define PetscMalloc7(m1, r1, m2, r2, m3, r3, m4, r4, m5, r5, m6, r6, m7, r7) \
783   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))
784 
785 /*MC
786    PetscCalloc7 - Allocates 7 cleared (zeroed) arrays of memory, all aligned to `PETSC_MEMALIGN`
787 
788    Synopsis:
789     #include <petscsys.h>
790    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)
791 
792    Not Collective
793 
794    Input Parameters:
795 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
796 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
797 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
798 .  m4 - number of elements to allocate in 4th chunk  (may be zero)
799 .  m5 - number of elements to allocate in 5th chunk  (may be zero)
800 .  m6 - number of elements to allocate in 6th chunk  (may be zero)
801 -  m7 - number of elements to allocate in 7th chunk  (may be zero)
802 
803    Output Parameters:
804 +  r1 - memory allocated in first chunk
805 .  r2 - memory allocated in second chunk
806 .  r3 - memory allocated in third chunk
807 .  r4 - memory allocated in fourth chunk
808 .  r5 - memory allocated in fifth chunk
809 .  r6 - memory allocated in sixth chunk
810 -  r7 - memory allocated in seventh chunk
811 
812    Level: developer
813 
814 .seealso: `PetscFree()`, `PetscNew()`, `PetscMalloc()`, `PetscMalloc2()`, `PetscMalloc7()`, `PetscFree7()`
815 M*/
816 #define PetscCalloc7(m1, r1, m2, r2, m3, r3, m4, r4, m5, r5, m6, r6, m7, r7) \
817   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))
818 
819 /*MC
820    PetscNew - Allocates memory of a particular type, zeros the memory! Aligned to `PETSC_MEMALIGN`
821 
822    Synopsis:
823     #include <petscsys.h>
824    PetscErrorCode PetscNew(type **result)
825 
826    Not Collective
827 
828    Output Parameter:
829 .  result - memory allocated, sized to match pointer type
830 
831    Level: beginner
832 
833 .seealso: `PetscFree()`, `PetscMalloc()`, `PetscCalloc1()`, `PetscMalloc1()`
834 M*/
835 #define PetscNew(b) PetscCalloc1(1, (b))
836 
837 #define PetscNewLog(o, b) PETSC_DEPRECATED_MACRO(3, 18, 0, "PetscNew()", ) PetscNew((b))
838 
839 /*MC
840    PetscFree - Frees memory
841 
842    Synopsis:
843     #include <petscsys.h>
844    PetscErrorCode PetscFree(void *memory)
845 
846    Not Collective
847 
848    Input Parameter:
849 .   memory - memory to free (the pointer is ALWAYS set to `NULL` upon success)
850 
851    Level: beginner
852 
853    Notes:
854    Do not free memory obtained with `PetscMalloc2()`, `PetscCalloc2()` etc, they must be freed with `PetscFree2()` etc.
855 
856    It is safe to call `PetscFree()` on a `NULL` pointer.
857 
858 .seealso: `PetscNew()`, `PetscMalloc()`, `PetscMalloc1()`, `PetscCalloc1()`
859 M*/
860 #define PetscFree(a) ((PetscErrorCode)((*PetscTrFree)((void *)(a), __LINE__, PETSC_FUNCTION_NAME, __FILE__) || ((a) = PETSC_NULLPTR, PETSC_SUCCESS)))
861 
862 /*MC
863    PetscFree2 - Frees 2 chunks of memory obtained with `PetscMalloc2()`
864 
865    Synopsis:
866     #include <petscsys.h>
867    PetscErrorCode PetscFree2(void *memory1,void *memory2)
868 
869    Not Collective
870 
871    Input Parameters:
872 +   memory1 - memory to free
873 -   memory2 - 2nd memory to free
874 
875    Level: developer
876 
877    Notes:
878     Memory must have been obtained with `PetscMalloc2()`
879 
880     The arguments need to be in the same order as they were in the call to `PetscMalloc2()`
881 
882 .seealso: `PetscNew()`, `PetscMalloc()`, `PetscMalloc2()`, `PetscFree()`
883 M*/
884 #define PetscFree2(m1, m2) PetscFreeA(2, __LINE__, PETSC_FUNCTION_NAME, __FILE__, &(m1), &(m2))
885 
886 /*MC
887    PetscFree3 - Frees 3 chunks of memory obtained with `PetscMalloc3()`
888 
889    Synopsis:
890     #include <petscsys.h>
891    PetscErrorCode PetscFree3(void *memory1,void *memory2,void *memory3)
892 
893    Not Collective
894 
895    Input Parameters:
896 +   memory1 - memory to free
897 .   memory2 - 2nd memory to free
898 -   memory3 - 3rd memory to free
899 
900    Level: developer
901 
902    Notes:
903     Memory must have been obtained with `PetscMalloc3()`
904 
905     The arguments need to be in the same order as they were in the call to `PetscMalloc3()`
906 
907 .seealso: `PetscNew()`, `PetscMalloc()`, `PetscMalloc2()`, `PetscFree()`, `PetscMalloc3()`
908 M*/
909 #define PetscFree3(m1, m2, m3) PetscFreeA(3, __LINE__, PETSC_FUNCTION_NAME, __FILE__, &(m1), &(m2), &(m3))
910 
911 /*MC
912    PetscFree4 - Frees 4 chunks of memory obtained with `PetscMalloc4()`
913 
914    Synopsis:
915     #include <petscsys.h>
916    PetscErrorCode PetscFree4(void *m1,void *m2,void *m3,void *m4)
917 
918    Not Collective
919 
920    Input Parameters:
921 +   m1 - memory to free
922 .   m2 - 2nd memory to free
923 .   m3 - 3rd memory to free
924 -   m4 - 4th memory to free
925 
926    Level: developer
927 
928    Notes:
929     Memory must have been obtained with `PetscMalloc4()`
930 
931     The arguments need to be in the same order as they were in the call to `PetscMalloc4()`
932 
933 .seealso: `PetscNew()`, `PetscMalloc()`, `PetscMalloc2()`, `PetscFree()`, `PetscMalloc3()`, `PetscMalloc4()`
934 M*/
935 #define PetscFree4(m1, m2, m3, m4) PetscFreeA(4, __LINE__, PETSC_FUNCTION_NAME, __FILE__, &(m1), &(m2), &(m3), &(m4))
936 
937 /*MC
938    PetscFree5 - Frees 5 chunks of memory obtained with `PetscMalloc5()`
939 
940    Synopsis:
941     #include <petscsys.h>
942    PetscErrorCode PetscFree5(void *m1,void *m2,void *m3,void *m4,void *m5)
943 
944    Not Collective
945 
946    Input Parameters:
947 +   m1 - memory to free
948 .   m2 - 2nd memory to free
949 .   m3 - 3rd memory to free
950 .   m4 - 4th memory to free
951 -   m5 - 5th memory to free
952 
953    Level: developer
954 
955    Notes:
956     Memory must have been obtained with `PetscMalloc5()`
957 
958     The arguments need to be in the same order as they were in the call to `PetscMalloc5()`
959 
960 .seealso: `PetscNew()`, `PetscMalloc()`, `PetscMalloc2()`, `PetscFree()`, `PetscMalloc3()`, `PetscMalloc4()`, `PetscMalloc5()`
961 M*/
962 #define PetscFree5(m1, m2, m3, m4, m5) PetscFreeA(5, __LINE__, PETSC_FUNCTION_NAME, __FILE__, &(m1), &(m2), &(m3), &(m4), &(m5))
963 
964 /*MC
965    PetscFree6 - Frees 6 chunks of memory obtained with `PetscMalloc6()`
966 
967    Synopsis:
968     #include <petscsys.h>
969    PetscErrorCode PetscFree6(void *m1,void *m2,void *m3,void *m4,void *m5,void *m6)
970 
971    Not Collective
972 
973    Input Parameters:
974 +   m1 - memory to free
975 .   m2 - 2nd memory to free
976 .   m3 - 3rd memory to free
977 .   m4 - 4th memory to free
978 .   m5 - 5th memory to free
979 -   m6 - 6th memory to free
980 
981    Level: developer
982 
983    Notes:
984     Memory must have been obtained with `PetscMalloc6()`
985 
986     The arguments need to be in the same order as they were in the call to `PetscMalloc6()`
987 
988 .seealso: `PetscNew()`, `PetscMalloc()`, `PetscMalloc2()`, `PetscFree()`, `PetscMalloc3()`, `PetscMalloc4()`, `PetscMalloc5()`, `PetscMalloc6()`
989 M*/
990 #define PetscFree6(m1, m2, m3, m4, m5, m6) PetscFreeA(6, __LINE__, PETSC_FUNCTION_NAME, __FILE__, &(m1), &(m2), &(m3), &(m4), &(m5), &(m6))
991 
992 /*MC
993    PetscFree7 - Frees 7 chunks of memory obtained with `PetscMalloc7()`
994 
995    Synopsis:
996     #include <petscsys.h>
997    PetscErrorCode PetscFree7(void *m1,void *m2,void *m3,void *m4,void *m5,void *m6,void *m7)
998 
999    Not Collective
1000 
1001    Input Parameters:
1002 +   m1 - memory to free
1003 .   m2 - 2nd memory to free
1004 .   m3 - 3rd memory to free
1005 .   m4 - 4th memory to free
1006 .   m5 - 5th memory to free
1007 .   m6 - 6th memory to free
1008 -   m7 - 7th memory to free
1009 
1010    Level: developer
1011 
1012    Notes:
1013     Memory must have been obtained with `PetscMalloc7()`
1014 
1015     The arguments need to be in the same order as they were in the call to `PetscMalloc7()`
1016 
1017 .seealso: `PetscNew()`, `PetscMalloc()`, `PetscMalloc2()`, `PetscFree()`, `PetscMalloc3()`, `PetscMalloc4()`, `PetscMalloc5()`, `PetscMalloc6()`,
1018           `PetscMalloc7()`
1019 M*/
1020 #define PetscFree7(m1, m2, m3, m4, m5, m6, m7) PetscFreeA(7, __LINE__, PETSC_FUNCTION_NAME, __FILE__, &(m1), &(m2), &(m3), &(m4), &(m5), &(m6), &(m7))
1021 
1022 PETSC_EXTERN PetscErrorCode PetscMallocA(int, PetscBool, int, const char *, const char *, size_t, void *, ...);
1023 PETSC_EXTERN PetscErrorCode PetscFreeA(int, int, const char *, const char *, void *, ...);
1024 PETSC_EXTERN                PetscErrorCode (*PetscTrMalloc)(size_t, PetscBool, int, const char[], const char[], void **);
1025 PETSC_EXTERN                PetscErrorCode (*PetscTrFree)(void *, int, const char[], const char[]);
1026 PETSC_EXTERN                PetscErrorCode (*PetscTrRealloc)(size_t, int, const char[], const char[], void **);
1027 PETSC_EXTERN PetscErrorCode PetscMallocSetCoalesce(PetscBool);
1028 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 **));
1029 PETSC_EXTERN PetscErrorCode PetscMallocClear(void);
1030 
1031 /*
1032   Unlike PetscMallocSet and PetscMallocClear which overwrite the existing settings, these two functions save the previous choice of allocator, and should be used in pair.
1033 */
1034 PETSC_EXTERN PetscErrorCode PetscMallocSetDRAM(void);
1035 PETSC_EXTERN PetscErrorCode PetscMallocResetDRAM(void);
1036 #if defined(PETSC_HAVE_CUDA)
1037 PETSC_EXTERN PetscErrorCode PetscMallocSetCUDAHost(void);
1038 PETSC_EXTERN PetscErrorCode PetscMallocResetCUDAHost(void);
1039 #endif
1040 #if defined(PETSC_HAVE_HIP)
1041 PETSC_EXTERN PetscErrorCode PetscMallocSetHIPHost(void);
1042 PETSC_EXTERN PetscErrorCode PetscMallocResetHIPHost(void);
1043 #endif
1044 
1045 #define MPIU_PETSCLOGDOUBLE  MPI_DOUBLE
1046 #define MPIU_2PETSCLOGDOUBLE MPI_2DOUBLE_PRECISION
1047 
1048 /*
1049    Routines for tracing memory corruption/bleeding with default PETSc memory allocation
1050 */
1051 PETSC_EXTERN PetscErrorCode PetscMallocDump(FILE *);
1052 PETSC_EXTERN PetscErrorCode PetscMallocView(FILE *);
1053 PETSC_EXTERN PetscErrorCode PetscMallocGetCurrentUsage(PetscLogDouble *);
1054 PETSC_EXTERN PetscErrorCode PetscMallocGetMaximumUsage(PetscLogDouble *);
1055 PETSC_EXTERN PetscErrorCode PetscMallocPushMaximumUsage(int);
1056 PETSC_EXTERN PetscErrorCode PetscMallocPopMaximumUsage(int, PetscLogDouble *);
1057 PETSC_EXTERN PetscErrorCode PetscMallocSetDebug(PetscBool, PetscBool);
1058 PETSC_EXTERN PetscErrorCode PetscMallocGetDebug(PetscBool *, PetscBool *, PetscBool *);
1059 PETSC_EXTERN PetscErrorCode PetscMallocValidate(int, const char[], const char[]);
1060 PETSC_EXTERN PetscErrorCode PetscMallocViewSet(PetscLogDouble);
1061 PETSC_EXTERN PetscErrorCode PetscMallocViewGet(PetscBool *);
1062 PETSC_EXTERN PetscErrorCode PetscMallocLogRequestedSizeSet(PetscBool);
1063 PETSC_EXTERN PetscErrorCode PetscMallocLogRequestedSizeGet(PetscBool *);
1064 
1065 PETSC_EXTERN PetscErrorCode PetscDataTypeToMPIDataType(PetscDataType, MPI_Datatype *);
1066 PETSC_EXTERN PetscErrorCode PetscMPIDataTypeToPetscDataType(MPI_Datatype, PetscDataType *);
1067 PETSC_EXTERN PetscErrorCode PetscDataTypeGetSize(PetscDataType, size_t *);
1068 PETSC_EXTERN PetscErrorCode PetscDataTypeFromString(const char *, PetscDataType *, PetscBool *);
1069 
1070 /*
1071    These are MPI operations for MPI_Allreduce() etc
1072 */
1073 PETSC_EXTERN MPI_Op MPIU_MAXSUM_OP;
1074 #if defined(PETSC_USE_REAL___FLOAT128) || defined(PETSC_USE_REAL___FP16)
1075 PETSC_EXTERN MPI_Op MPIU_SUM;
1076 PETSC_EXTERN MPI_Op MPIU_MAX;
1077 PETSC_EXTERN MPI_Op MPIU_MIN;
1078 #else
1079   #define MPIU_SUM MPI_SUM
1080   #define MPIU_MAX MPI_MAX
1081   #define MPIU_MIN MPI_MIN
1082 #endif
1083 PETSC_EXTERN MPI_Op         Petsc_Garbage_SetIntersectOp;
1084 PETSC_EXTERN PetscErrorCode PetscMaxSum(MPI_Comm, const PetscInt[], PetscInt *, PetscInt *);
1085 
1086 #if (defined(PETSC_HAVE_REAL___FLOAT128) && !defined(PETSC_SKIP_REAL___FLOAT128)) || (defined(PETSC_HAVE_REAL___FP16) && !defined(PETSC_SKIP_REAL___FP16))
1087 /*MC
1088    MPIU_SUM___FP16___FLOAT128 - MPI_Op that acts as a replacement for `MPI_SUM` with
1089    custom `MPI_Datatype` `MPIU___FLOAT128`, `MPIU___COMPLEX128`, and `MPIU___FP16`.
1090 
1091    Level: advanced
1092 
1093    Developer Note:
1094    This should be unified with `MPIU_SUM`
1095 
1096 .seealso: `MPIU_REAL`, `MPIU_SCALAR`, `MPIU_COMPLEX`
1097 M*/
1098 PETSC_EXTERN MPI_Op MPIU_SUM___FP16___FLOAT128;
1099 #endif
1100 PETSC_EXTERN PetscErrorCode PetscMaxSum(MPI_Comm, const PetscInt[], PetscInt *, PetscInt *);
1101 
1102 PETSC_EXTERN PetscErrorCode MPIULong_Send(void *, PetscInt, MPI_Datatype, PetscMPIInt, PetscMPIInt, MPI_Comm) PETSC_ATTRIBUTE_MPI_POINTER_WITH_TYPE(1, 3);
1103 PETSC_EXTERN PetscErrorCode MPIULong_Recv(void *, PetscInt, MPI_Datatype, PetscMPIInt, PetscMPIInt, MPI_Comm) PETSC_ATTRIBUTE_MPI_POINTER_WITH_TYPE(1, 3);
1104 
1105 /*
1106     Defines PETSc error handling.
1107 */
1108 #include <petscerror.h>
1109 
1110 PETSC_EXTERN PetscBool   PetscCIEnabled;                    /* code is running in the PETSc test harness CI */
1111 PETSC_EXTERN PetscBool   PetscCIEnabledPortableErrorOutput; /* error output is stripped to ensure portability of error messages across systems */
1112 PETSC_EXTERN const char *PetscCIFilename(const char *);
1113 PETSC_EXTERN int         PetscCILinenumber(int);
1114 
1115 #define PETSC_SMALLEST_CLASSID ((PetscClassId)1211211)
1116 PETSC_EXTERN PetscClassId   PETSC_LARGEST_CLASSID;
1117 PETSC_EXTERN PetscClassId   PETSC_OBJECT_CLASSID;
1118 PETSC_EXTERN PetscErrorCode PetscClassIdRegister(const char[], PetscClassId *);
1119 PETSC_EXTERN PetscErrorCode PetscObjectGetId(PetscObject, PetscObjectId *);
1120 PETSC_EXTERN PetscErrorCode PetscObjectCompareId(PetscObject, PetscObjectId, PetscBool *);
1121 
1122 /*
1123    Routines that get memory usage information from the OS
1124 */
1125 PETSC_EXTERN PetscErrorCode PetscMemoryGetCurrentUsage(PetscLogDouble *);
1126 PETSC_EXTERN PetscErrorCode PetscMemoryGetMaximumUsage(PetscLogDouble *);
1127 PETSC_EXTERN PetscErrorCode PetscMemorySetGetMaximumUsage(void);
1128 PETSC_EXTERN PetscErrorCode PetscMemoryTrace(const char[]);
1129 
1130 PETSC_EXTERN PetscErrorCode PetscSleep(PetscReal);
1131 
1132 /*
1133    Initialization of PETSc
1134 */
1135 PETSC_EXTERN PetscErrorCode PetscInitialize(int *, char ***, const char[], const char[]);
1136 PETSC_EXTERN PetscErrorCode PetscInitializeNoPointers(int, char **, const char[], const char[]);
1137 PETSC_EXTERN PetscErrorCode PetscInitializeNoArguments(void);
1138 PETSC_EXTERN PetscErrorCode PetscInitialized(PetscBool *);
1139 PETSC_EXTERN PetscErrorCode PetscFinalized(PetscBool *);
1140 PETSC_EXTERN PetscErrorCode PetscFinalize(void);
1141 PETSC_EXTERN PetscErrorCode PetscInitializeFortran(void);
1142 PETSC_EXTERN PetscErrorCode PetscGetArgs(int *, char ***);
1143 PETSC_EXTERN PetscErrorCode PetscGetArguments(char ***);
1144 PETSC_EXTERN PetscErrorCode PetscFreeArguments(char **);
1145 
1146 PETSC_EXTERN PetscErrorCode PetscEnd(void);
1147 PETSC_EXTERN PetscErrorCode PetscSysInitializePackage(void);
1148 PETSC_EXTERN PetscErrorCode PetscSysFinalizePackage(void);
1149 
1150 PETSC_EXTERN PetscErrorCode PetscPythonInitialize(const char[], const char[]);
1151 PETSC_EXTERN PetscErrorCode PetscPythonFinalize(void);
1152 PETSC_EXTERN PetscErrorCode PetscPythonPrintError(void);
1153 PETSC_EXTERN PetscErrorCode PetscPythonMonitorSet(PetscObject, const char[]);
1154 
1155 PETSC_EXTERN PetscErrorCode PetscMonitorCompare(PetscErrorCode (*)(void), void *, PetscErrorCode (*)(void **), PetscErrorCode (*)(void), void *, PetscErrorCode (*)(void **), PetscBool *);
1156 
1157 /*
1158      These are so that in extern C code we can caste function pointers to non-extern C
1159    function pointers. Since the regular C++ code expects its function pointers to be C++
1160 */
1161 PETSC_EXTERN_TYPEDEF typedef void (**PetscVoidStarFunction)(void);
1162 PETSC_EXTERN_TYPEDEF typedef void (*PetscVoidFunction)(void);
1163 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*PetscErrorCodeFunction)(void);
1164 
1165 /*
1166     Functions that can act on any PETSc object.
1167 */
1168 PETSC_EXTERN PetscErrorCode PetscObjectDestroy(PetscObject *);
1169 PETSC_EXTERN PetscErrorCode PetscObjectGetComm(PetscObject, MPI_Comm *);
1170 PETSC_EXTERN PetscErrorCode PetscObjectGetClassId(PetscObject, PetscClassId *);
1171 PETSC_EXTERN PetscErrorCode PetscObjectGetClassName(PetscObject, const char *[]);
1172 PETSC_EXTERN PetscErrorCode PetscObjectGetType(PetscObject, const char *[]);
1173 PETSC_EXTERN PetscErrorCode PetscObjectSetName(PetscObject, const char[]);
1174 PETSC_EXTERN PetscErrorCode PetscObjectGetName(PetscObject, const char *[]);
1175 PETSC_EXTERN PetscErrorCode PetscObjectSetTabLevel(PetscObject, PetscInt);
1176 PETSC_EXTERN PetscErrorCode PetscObjectGetTabLevel(PetscObject, PetscInt *);
1177 PETSC_EXTERN PetscErrorCode PetscObjectIncrementTabLevel(PetscObject, PetscObject, PetscInt);
1178 PETSC_EXTERN PetscErrorCode PetscObjectReference(PetscObject);
1179 PETSC_EXTERN PetscErrorCode PetscObjectGetReference(PetscObject, PetscInt *);
1180 PETSC_EXTERN PetscErrorCode PetscObjectDereference(PetscObject);
1181 PETSC_EXTERN PetscErrorCode PetscObjectGetNewTag(PetscObject, PetscMPIInt *);
1182 PETSC_EXTERN PetscErrorCode PetscObjectCompose(PetscObject, const char[], PetscObject);
1183 PETSC_EXTERN PetscErrorCode PetscObjectRemoveReference(PetscObject, const char[]);
1184 PETSC_EXTERN PetscErrorCode PetscObjectQuery(PetscObject, const char[], PetscObject *);
1185 PETSC_EXTERN PetscErrorCode PetscObjectComposeFunction_Private(PetscObject, const char[], void (*)(void));
1186 #define PetscObjectComposeFunction(a, b, ...) PetscObjectComposeFunction_Private((a), (b), (PetscVoidFunction)(__VA_ARGS__))
1187 PETSC_EXTERN PetscErrorCode PetscObjectSetFromOptions(PetscObject);
1188 PETSC_EXTERN PetscErrorCode PetscObjectSetUp(PetscObject);
1189 PETSC_EXTERN PetscErrorCode PetscObjectSetPrintedOptions(PetscObject);
1190 PETSC_EXTERN PetscErrorCode PetscObjectInheritPrintedOptions(PetscObject, PetscObject);
1191 PETSC_EXTERN PetscErrorCode PetscCommGetNewTag(MPI_Comm, PetscMPIInt *);
1192 
1193 #include <petscviewertypes.h>
1194 #include <petscoptions.h>
1195 
1196 PETSC_EXTERN PetscErrorCode PetscMallocTraceSet(PetscViewer, PetscBool, PetscLogDouble);
1197 PETSC_EXTERN PetscErrorCode PetscMallocTraceGet(PetscBool *);
1198 
1199 PETSC_EXTERN PetscErrorCode PetscObjectsListGetGlobalNumbering(MPI_Comm, PetscInt, PetscObject *, PetscInt *, PetscInt *);
1200 
1201 PETSC_EXTERN PetscErrorCode PetscMemoryView(PetscViewer, const char[]);
1202 PETSC_EXTERN PetscErrorCode PetscObjectPrintClassNamePrefixType(PetscObject, PetscViewer);
1203 PETSC_EXTERN PetscErrorCode PetscObjectView(PetscObject, PetscViewer);
1204 #define PetscObjectQueryFunction(obj, name, fptr) PetscObjectQueryFunction_Private((obj), (name), (PetscVoidFunction *)(fptr))
1205 PETSC_EXTERN PetscErrorCode PetscObjectQueryFunction_Private(PetscObject, const char[], void (**)(void));
1206 PETSC_EXTERN PetscErrorCode PetscObjectSetOptionsPrefix(PetscObject, const char[]);
1207 PETSC_EXTERN PetscErrorCode PetscObjectAppendOptionsPrefix(PetscObject, const char[]);
1208 PETSC_EXTERN PetscErrorCode PetscObjectPrependOptionsPrefix(PetscObject, const char[]);
1209 PETSC_EXTERN PetscErrorCode PetscObjectGetOptionsPrefix(PetscObject, const char *[]);
1210 PETSC_EXTERN PetscErrorCode PetscObjectChangeTypeName(PetscObject, const char[]);
1211 PETSC_EXTERN PetscErrorCode PetscObjectRegisterDestroy(PetscObject);
1212 PETSC_EXTERN PetscErrorCode PetscObjectRegisterDestroyAll(void);
1213 PETSC_EXTERN PetscErrorCode PetscObjectViewFromOptions(PetscObject, PetscObject, const char[]);
1214 PETSC_EXTERN PetscErrorCode PetscObjectName(PetscObject);
1215 PETSC_EXTERN PetscErrorCode PetscObjectTypeCompare(PetscObject, const char[], PetscBool *);
1216 PETSC_EXTERN PetscErrorCode PetscObjectObjectTypeCompare(PetscObject, PetscObject, PetscBool *);
1217 PETSC_EXTERN PetscErrorCode PetscObjectBaseTypeCompare(PetscObject, const char[], PetscBool *);
1218 PETSC_EXTERN PetscErrorCode PetscObjectTypeCompareAny(PetscObject, PetscBool *, const char[], ...);
1219 PETSC_EXTERN PetscErrorCode PetscObjectBaseTypeCompareAny(PetscObject, PetscBool *, const char[], ...);
1220 PETSC_EXTERN PetscErrorCode PetscRegisterFinalize(PetscErrorCode (*)(void));
1221 PETSC_EXTERN PetscErrorCode PetscRegisterFinalizeAll(void);
1222 
1223 #if defined(PETSC_HAVE_SAWS)
1224 PETSC_EXTERN PetscErrorCode PetscSAWsBlock(void);
1225 PETSC_EXTERN PetscErrorCode PetscObjectSAWsViewOff(PetscObject);
1226 PETSC_EXTERN PetscErrorCode PetscObjectSAWsSetBlock(PetscObject, PetscBool);
1227 PETSC_EXTERN PetscErrorCode PetscObjectSAWsBlock(PetscObject);
1228 PETSC_EXTERN PetscErrorCode PetscObjectSAWsGrantAccess(PetscObject);
1229 PETSC_EXTERN PetscErrorCode PetscObjectSAWsTakeAccess(PetscObject);
1230 PETSC_EXTERN void           PetscStackSAWsGrantAccess(void);
1231 PETSC_EXTERN void           PetscStackSAWsTakeAccess(void);
1232 PETSC_EXTERN PetscErrorCode PetscStackViewSAWs(void);
1233 PETSC_EXTERN PetscErrorCode PetscStackSAWsViewOff(void);
1234 
1235 #else
1236   #define PetscSAWsBlock()                  PETSC_SUCCESS
1237   #define PetscObjectSAWsViewOff(obj)       PETSC_SUCCESS
1238   #define PetscObjectSAWsSetBlock(obj, flg) PETSC_SUCCESS
1239   #define PetscObjectSAWsBlock(obj)         PETSC_SUCCESS
1240   #define PetscObjectSAWsGrantAccess(obj)   PETSC_SUCCESS
1241   #define PetscObjectSAWsTakeAccess(obj)    PETSC_SUCCESS
1242   #define PetscStackViewSAWs()              PETSC_SUCCESS
1243   #define PetscStackSAWsViewOff()           PETSC_SUCCESS
1244   #define PetscStackSAWsTakeAccess()
1245   #define PetscStackSAWsGrantAccess()
1246 
1247 #endif
1248 
1249 PETSC_EXTERN PetscErrorCode PetscDLOpen(const char[], PetscDLMode, PetscDLHandle *);
1250 PETSC_EXTERN PetscErrorCode PetscDLClose(PetscDLHandle *);
1251 PETSC_EXTERN PetscErrorCode PetscDLSym(PetscDLHandle, const char[], void **);
1252 PETSC_EXTERN PetscErrorCode PetscDLAddr(void (*)(void), char **);
1253 #ifdef PETSC_HAVE_CXX
1254 PETSC_EXTERN PetscErrorCode PetscDemangleSymbol(const char *, char **);
1255 #endif
1256 
1257 PETSC_EXTERN PetscErrorCode PetscMallocGetStack(void *, PetscStack **);
1258 
1259 PETSC_EXTERN PetscErrorCode PetscObjectsDump(FILE *, PetscBool);
1260 PETSC_EXTERN PetscErrorCode PetscObjectsView(PetscViewer);
1261 PETSC_EXTERN PetscErrorCode PetscObjectsGetObject(const char *, PetscObject *, char **);
1262 PETSC_EXTERN PetscErrorCode PetscObjectListDestroy(PetscObjectList *);
1263 PETSC_EXTERN PetscErrorCode PetscObjectListFind(PetscObjectList, const char[], PetscObject *);
1264 PETSC_EXTERN PetscErrorCode PetscObjectListReverseFind(PetscObjectList, PetscObject, char **, PetscBool *);
1265 PETSC_EXTERN PetscErrorCode PetscObjectListAdd(PetscObjectList *, const char[], PetscObject);
1266 PETSC_EXTERN PetscErrorCode PetscObjectListRemoveReference(PetscObjectList *, const char[]);
1267 PETSC_EXTERN PetscErrorCode PetscObjectListDuplicate(PetscObjectList, PetscObjectList *);
1268 
1269 /*
1270     Dynamic library lists. Lists of names of routines in objects or in dynamic
1271   link libraries that will be loaded as needed.
1272 */
1273 
1274 #define PetscFunctionListAdd(list, name, fptr) PetscFunctionListAdd_Private((list), (name), (PetscVoidFunction)(fptr))
1275 PETSC_EXTERN PetscErrorCode PetscFunctionListAdd_Private(PetscFunctionList *, const char[], PetscVoidFunction);
1276 PETSC_EXTERN PetscErrorCode PetscFunctionListDestroy(PetscFunctionList *);
1277 PETSC_EXTERN PetscErrorCode PetscFunctionListClear(PetscFunctionList);
1278 #define PetscFunctionListFind(list, name, fptr) PetscFunctionListFind_Private((list), (name), (PetscVoidFunction *)(fptr))
1279 PETSC_EXTERN PetscErrorCode PetscFunctionListFind_Private(PetscFunctionList, const char[], PetscVoidFunction *);
1280 PETSC_EXTERN PetscErrorCode PetscFunctionListPrintTypes(MPI_Comm, FILE *, const char[], const char[], const char[], const char[], PetscFunctionList, const char[], const char[]);
1281 PETSC_EXTERN PetscErrorCode PetscFunctionListDuplicate(PetscFunctionList, PetscFunctionList *);
1282 PETSC_EXTERN PetscErrorCode PetscFunctionListView(PetscFunctionList, PetscViewer);
1283 PETSC_EXTERN PetscErrorCode PetscFunctionListGet(PetscFunctionList, const char ***, int *);
1284 PETSC_EXTERN PetscErrorCode PetscFunctionListPrintNonEmpty(PetscFunctionList);
1285 PETSC_EXTERN PetscErrorCode PetscFunctionListPrintAll(void);
1286 
1287 PETSC_EXTERN PetscDLLibrary PetscDLLibrariesLoaded;
1288 PETSC_EXTERN PetscErrorCode PetscDLLibraryAppend(MPI_Comm, PetscDLLibrary *, const char[]);
1289 PETSC_EXTERN PetscErrorCode PetscDLLibraryPrepend(MPI_Comm, PetscDLLibrary *, const char[]);
1290 PETSC_EXTERN PetscErrorCode PetscDLLibrarySym(MPI_Comm, PetscDLLibrary *, const char[], const char[], void **);
1291 PETSC_EXTERN PetscErrorCode PetscDLLibraryPrintPath(PetscDLLibrary);
1292 PETSC_EXTERN PetscErrorCode PetscDLLibraryRetrieve(MPI_Comm, const char[], char *, size_t, PetscBool *);
1293 PETSC_EXTERN PetscErrorCode PetscDLLibraryOpen(MPI_Comm, const char[], PetscDLLibrary *);
1294 PETSC_EXTERN PetscErrorCode PetscDLLibraryClose(PetscDLLibrary);
1295 
1296 /*
1297      Useful utility routines
1298 */
1299 PETSC_EXTERN PetscErrorCode PetscSplitOwnership(MPI_Comm, PetscInt *, PetscInt *);
1300 PETSC_EXTERN PetscErrorCode PetscSplitOwnershipBlock(MPI_Comm, PetscInt, PetscInt *, PetscInt *);
1301 PETSC_EXTERN PetscErrorCode PetscSplitOwnershipEqual(MPI_Comm, PetscInt *, PetscInt *);
1302 PETSC_EXTERN PetscErrorCode PetscSequentialPhaseBegin(MPI_Comm, PetscMPIInt);
1303 PETSC_EXTERN PetscErrorCode PetscSequentialPhaseEnd(MPI_Comm, PetscMPIInt);
1304 PETSC_EXTERN PetscErrorCode PetscBarrier(PetscObject);
1305 PETSC_EXTERN PetscErrorCode PetscMPIDump(FILE *);
1306 PETSC_EXTERN PetscErrorCode PetscGlobalMinMaxInt(MPI_Comm, const PetscInt[2], PetscInt[2]);
1307 PETSC_EXTERN PetscErrorCode PetscGlobalMinMaxReal(MPI_Comm, const PetscReal[2], PetscReal[2]);
1308 
1309 /*MC
1310     PetscNot - negates a logical type value and returns result as a `PetscBool`
1311 
1312     Level: beginner
1313 
1314     Note:
1315     This is useful in cases like
1316 .vb
1317      int        *a;
1318      PetscBool  flag = PetscNot(a)
1319 .ve
1320      where !a would not return a `PetscBool` because we cannot provide a cast from int to `PetscBool` in C.
1321 
1322 .seealso: `PetscBool`, `PETSC_TRUE`, `PETSC_FALSE`
1323 M*/
1324 #define PetscNot(a) ((a) ? PETSC_FALSE : PETSC_TRUE)
1325 
1326 /*MC
1327    PetscHelpPrintf - Prints help messages.
1328 
1329    Synopsis:
1330     #include <petscsys.h>
1331      PetscErrorCode (*PetscHelpPrintf)(MPI_Comm comm, const char format[],args);
1332 
1333    Not Collective, only applies on MPI rank 0; No Fortran Support
1334 
1335    Input Parameters:
1336 +  comm - the MPI communicator over which the help message is printed
1337 .  format - the usual printf() format string
1338 -  args - arguments to be printed
1339 
1340    Level: developer
1341 
1342    Notes:
1343    You can change how help messages are printed by replacing the function pointer with a function that does not simply write to stdout.
1344 
1345    To use, write your own function, for example,
1346 .vb
1347    PetscErrorCode mypetschelpprintf(MPI_Comm comm,const char format[],....)
1348    {
1349      PetscFunctionReturn(PETSC_SUCCESS);
1350    }
1351 .ve
1352 then do the assignment
1353 .vb
1354   PetscHelpPrintf = mypetschelpprintf;
1355 .ve
1356 
1357   You can do the assignment before `PetscInitialize()`.
1358 
1359   The default routine used is called `PetscHelpPrintfDefault()`.
1360 
1361 .seealso: `PetscFPrintf()`, `PetscSynchronizedPrintf()`, `PetscErrorPrintf()`, `PetscHelpPrintfDefault()`
1362 M*/
1363 PETSC_EXTERN PetscErrorCode (*PetscHelpPrintf)(MPI_Comm, const char[], ...) PETSC_ATTRIBUTE_FORMAT(2, 3);
1364 
1365 /*
1366      Defines PETSc profiling.
1367 */
1368 #include <petsclog.h>
1369 
1370 /*
1371       Simple PETSc parallel IO for ASCII printing
1372 */
1373 PETSC_EXTERN PetscErrorCode PetscFixFilename(const char[], char[]);
1374 PETSC_EXTERN PetscErrorCode PetscFOpen(MPI_Comm, const char[], const char[], FILE **);
1375 PETSC_EXTERN PetscErrorCode PetscFClose(MPI_Comm, FILE *);
1376 PETSC_EXTERN PetscErrorCode PetscFPrintf(MPI_Comm, FILE *, const char[], ...) PETSC_ATTRIBUTE_FORMAT(3, 4);
1377 PETSC_EXTERN PetscErrorCode PetscFFlush(FILE *);
1378 PETSC_EXTERN PetscErrorCode PetscPrintf(MPI_Comm, const char[], ...) PETSC_ATTRIBUTE_FORMAT(2, 3);
1379 PETSC_EXTERN PetscErrorCode PetscSNPrintf(char *, size_t, const char[], ...) PETSC_ATTRIBUTE_FORMAT(3, 4);
1380 PETSC_EXTERN PetscErrorCode PetscSNPrintfCount(char *, size_t, const char[], size_t *, ...) PETSC_ATTRIBUTE_FORMAT(3, 5);
1381 PETSC_EXTERN PetscErrorCode PetscFormatRealArray(char[], size_t, const char *, PetscInt, const PetscReal[]);
1382 
1383 PETSC_EXTERN PetscErrorCode PetscErrorPrintfDefault(const char[], ...) PETSC_ATTRIBUTE_FORMAT(1, 2);
1384 PETSC_EXTERN PetscErrorCode PetscErrorPrintfNone(const char[], ...) PETSC_ATTRIBUTE_FORMAT(1, 2);
1385 PETSC_EXTERN PetscErrorCode PetscHelpPrintfDefault(MPI_Comm, const char[], ...) PETSC_ATTRIBUTE_FORMAT(2, 3);
1386 
1387 PETSC_EXTERN PetscErrorCode PetscFormatConvertGetSize(const char *, size_t *);
1388 PETSC_EXTERN PetscErrorCode PetscFormatConvert(const char *, char *);
1389 
1390 #if defined(PETSC_HAVE_POPEN)
1391 PETSC_EXTERN PetscErrorCode PetscPOpen(MPI_Comm, const char[], const char[], const char[], FILE **);
1392 PETSC_EXTERN PetscErrorCode PetscPClose(MPI_Comm, FILE *);
1393 PETSC_EXTERN PetscErrorCode PetscPOpenSetMachine(const char[]);
1394 #endif
1395 
1396 PETSC_EXTERN PetscErrorCode PetscSynchronizedPrintf(MPI_Comm, const char[], ...) PETSC_ATTRIBUTE_FORMAT(2, 3);
1397 PETSC_EXTERN PetscErrorCode PetscSynchronizedFPrintf(MPI_Comm, FILE *, const char[], ...) PETSC_ATTRIBUTE_FORMAT(3, 4);
1398 PETSC_EXTERN PetscErrorCode PetscSynchronizedFlush(MPI_Comm, FILE *);
1399 PETSC_EXTERN PetscErrorCode PetscSynchronizedFGets(MPI_Comm, FILE *, size_t, char[]);
1400 PETSC_EXTERN PetscErrorCode PetscStartMatlab(MPI_Comm, const char[], const char[], FILE **);
1401 PETSC_EXTERN PetscErrorCode PetscGetPetscDir(const char *[]);
1402 
1403 PETSC_EXTERN PetscClassId   PETSC_CONTAINER_CLASSID;
1404 PETSC_EXTERN PetscErrorCode PetscContainerGetPointer(PetscContainer, void **);
1405 PETSC_EXTERN PetscErrorCode PetscContainerSetPointer(PetscContainer, void *);
1406 PETSC_EXTERN PetscErrorCode PetscContainerDestroy(PetscContainer *);
1407 PETSC_EXTERN PetscErrorCode PetscContainerCreate(MPI_Comm, PetscContainer *);
1408 PETSC_EXTERN PetscErrorCode PetscContainerSetUserDestroy(PetscContainer, PetscErrorCode (*)(void *));
1409 PETSC_EXTERN PetscErrorCode PetscContainerUserDestroyDefault(void *);
1410 
1411 /*
1412    For use in debuggers
1413 */
1414 PETSC_EXTERN PetscMPIInt    PetscGlobalRank;
1415 PETSC_EXTERN PetscMPIInt    PetscGlobalSize;
1416 PETSC_EXTERN PetscErrorCode PetscIntView(PetscInt, const PetscInt[], PetscViewer);
1417 PETSC_EXTERN PetscErrorCode PetscRealView(PetscInt, const PetscReal[], PetscViewer);
1418 PETSC_EXTERN PetscErrorCode PetscScalarView(PetscInt, const PetscScalar[], PetscViewer);
1419 
1420 /*
1421     Basic memory and string operations. These are usually simple wrappers
1422    around the basic Unix system calls, but a few of them have additional
1423    functionality and/or error checking.
1424 */
1425 #include <petscstring.h>
1426 
1427 #include <stddef.h>
1428 #include <stdlib.h>
1429 
1430 #if defined(PETSC_CLANG_STATIC_ANALYZER)
1431   #define PetscPrefetchBlock(a, b, c, d)
1432 #else
1433   /*MC
1434    PetscPrefetchBlock - Prefetches a block of memory
1435 
1436    Synopsis:
1437     #include <petscsys.h>
1438     void PetscPrefetchBlock(const anytype *a,size_t n,int rw,int t)
1439 
1440    Not Collective
1441 
1442    Input Parameters:
1443 +  a  - pointer to first element to fetch (any type but usually `PetscInt` or `PetscScalar`)
1444 .  n  - number of elements to fetch
1445 .  rw - 1 if the memory will be written to, otherwise 0 (ignored by many processors)
1446 -  t  - temporal locality (PETSC_PREFETCH_HINT_{NTA,T0,T1,T2}), see note
1447 
1448    Level: developer
1449 
1450    Notes:
1451    The last two arguments (`rw` and `t`) must be compile-time constants.
1452 
1453    Adopting Intel's x86/x86-64 conventions, there are four levels of temporal locality.  Not all architectures offer
1454    equivalent locality hints, but the following macros are always defined to their closest analogue.
1455 +  `PETSC_PREFETCH_HINT_NTA` - Non-temporal.  Prefetches directly to L1, evicts to memory (skips higher level cache unless it was already there when prefetched).
1456 .  `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.
1457 .  `PETSC_PREFETCH_HINT_T1`  - Fetch to level 2 and higher (not L1).
1458 -  `PETSC_PREFETCH_HINT_T2`  - Fetch to high-level cache only.  (On many systems, T0 and T1 are equivalent.)
1459 
1460    This function does nothing on architectures that do not support prefetch and never errors (even if passed an invalid
1461    address).
1462 
1463 M*/
1464   #define PetscPrefetchBlock(a, n, rw, t) \
1465     do { \
1466       const char *_p = (const char *)(a), *_end = (const char *)((a) + (n)); \
1467       for (; _p < _end; _p += PETSC_LEVEL1_DCACHE_LINESIZE) PETSC_Prefetch(_p, (rw), (t)); \
1468     } while (0)
1469 #endif
1470 /*
1471       Determine if some of the kernel computation routines use
1472    Fortran (rather than C) for the numerical calculations. On some machines
1473    and compilers (like complex numbers) the Fortran version of the routines
1474    is faster than the C/C++ versions. The flag --with-fortran-kernels
1475    should be used with ./configure to turn these on.
1476 */
1477 #if defined(PETSC_USE_FORTRAN_KERNELS)
1478 
1479   #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTCRL)
1480     #define PETSC_USE_FORTRAN_KERNEL_MULTCRL
1481   #endif
1482 
1483   #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTAIJPERM)
1484     #define PETSC_USE_FORTRAN_KERNEL_MULTAIJPERM
1485   #endif
1486 
1487   #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTAIJ)
1488     #define PETSC_USE_FORTRAN_KERNEL_MULTAIJ
1489   #endif
1490 
1491   #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTTRANSPOSEAIJ)
1492     #define PETSC_USE_FORTRAN_KERNEL_MULTTRANSPOSEAIJ
1493   #endif
1494 
1495   #if !defined(PETSC_USE_FORTRAN_KERNEL_NORM)
1496     #define PETSC_USE_FORTRAN_KERNEL_NORM
1497   #endif
1498 
1499   #if !defined(PETSC_USE_FORTRAN_KERNEL_MAXPY)
1500     #define PETSC_USE_FORTRAN_KERNEL_MAXPY
1501   #endif
1502 
1503   #if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ)
1504     #define PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ
1505   #endif
1506 
1507   #if !defined(PETSC_USE_FORTRAN_KERNEL_RELAXAIJ)
1508     #define PETSC_USE_FORTRAN_KERNEL_RELAXAIJ
1509   #endif
1510 
1511   #if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ)
1512     #define PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ
1513   #endif
1514 
1515   #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ)
1516     #define PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ
1517   #endif
1518 
1519   #if !defined(PETSC_USE_FORTRAN_KERNEL_MDOT)
1520     #define PETSC_USE_FORTRAN_KERNEL_MDOT
1521   #endif
1522 
1523   #if !defined(PETSC_USE_FORTRAN_KERNEL_XTIMESY)
1524     #define PETSC_USE_FORTRAN_KERNEL_XTIMESY
1525   #endif
1526 
1527   #if !defined(PETSC_USE_FORTRAN_KERNEL_AYPX)
1528     #define PETSC_USE_FORTRAN_KERNEL_AYPX
1529   #endif
1530 
1531   #if !defined(PETSC_USE_FORTRAN_KERNEL_WAXPY)
1532     #define PETSC_USE_FORTRAN_KERNEL_WAXPY
1533   #endif
1534 
1535 #endif
1536 
1537 /*
1538     Macros for indicating code that should be compiled with a C interface,
1539    rather than a C++ interface. Any routines that are dynamically loaded
1540    (such as the PCCreate_XXX() routines) must be wrapped so that the name
1541    mangler does not change the functions symbol name. This just hides the
1542    ugly extern "C" {} wrappers.
1543 */
1544 #if defined(__cplusplus)
1545   #define EXTERN_C_BEGIN extern "C" {
1546   #define EXTERN_C_END   }
1547 #else
1548   #define EXTERN_C_BEGIN
1549   #define EXTERN_C_END
1550 #endif
1551 
1552 /*MC
1553    MPI_Comm - the basic object used by MPI to determine which processes are involved in a
1554    communication
1555 
1556    Level: beginner
1557 
1558    Note:
1559    This manual page is a place-holder because MPICH does not have a manual page for `MPI_Comm`
1560 
1561 .seealso: `PETSC_COMM_WORLD`, `PETSC_COMM_SELF`
1562 M*/
1563 
1564 #if defined(PETSC_HAVE_MPIIO)
1565 PETSC_EXTERN PetscErrorCode MPIU_File_write_all(MPI_File, void *, PetscMPIInt, MPI_Datatype, MPI_Status *) PETSC_ATTRIBUTE_MPI_POINTER_WITH_TYPE(2, 4);
1566 PETSC_EXTERN PetscErrorCode MPIU_File_read_all(MPI_File, void *, PetscMPIInt, MPI_Datatype, MPI_Status *) PETSC_ATTRIBUTE_MPI_POINTER_WITH_TYPE(2, 4);
1567 PETSC_EXTERN PetscErrorCode MPIU_File_write_at(MPI_File, MPI_Offset, void *, PetscMPIInt, MPI_Datatype, MPI_Status *) PETSC_ATTRIBUTE_MPI_POINTER_WITH_TYPE(3, 5);
1568 PETSC_EXTERN PetscErrorCode MPIU_File_read_at(MPI_File, MPI_Offset, void *, PetscMPIInt, MPI_Datatype, MPI_Status *) PETSC_ATTRIBUTE_MPI_POINTER_WITH_TYPE(3, 5);
1569 PETSC_EXTERN PetscErrorCode MPIU_File_write_at_all(MPI_File, MPI_Offset, void *, PetscMPIInt, MPI_Datatype, MPI_Status *) PETSC_ATTRIBUTE_MPI_POINTER_WITH_TYPE(3, 5);
1570 PETSC_EXTERN PetscErrorCode MPIU_File_read_at_all(MPI_File, MPI_Offset, void *, PetscMPIInt, MPI_Datatype, MPI_Status *) PETSC_ATTRIBUTE_MPI_POINTER_WITH_TYPE(3, 5);
1571 #endif
1572 
1573 /*@C
1574    PetscIntCast - casts a `PetscInt64` (which is 64 bits in size) to a `PetscInt` (which may be 32-bits in size), generates an
1575    error if the `PetscInt` is not large enough to hold the number.
1576 
1577    Not Collective; No Fortran Support
1578 
1579    Input Parameter:
1580 .  a - the `PetscInt64` value
1581 
1582    Output Parameter:
1583 .  b - the resulting `PetscInt` value
1584 
1585    Level: advanced
1586 
1587    Note:
1588    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 integers
1589 
1590 .seealso: `PetscBLASInt`, `PetscMPIInt`, `PetscInt`, `PetscMPIIntCast()`, `PetscBLASIntCast()`, `PetscIntMultError()`, `PetscIntSumError()`
1591 @*/
1592 static inline PetscErrorCode PetscIntCast(PetscInt64 a, PetscInt *b)
1593 {
1594   PetscFunctionBegin;
1595   *b = 0;
1596   // if using 64-bit indices already then this comparison is tautologically true
1597   PetscCheck(a < PETSC_MAX_INT, 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);
1598   *b = (PetscInt)a;
1599   PetscFunctionReturn(PETSC_SUCCESS);
1600 }
1601 
1602 /*@C
1603    PetscCountCast - casts a `PetscCount` to a `PetscInt` (which may be 32-bits in size), generates an
1604    error if the `PetscInt` is not large enough to hold the number.
1605 
1606    Not Collective; No Fortran Support
1607 
1608    Input Parameter:
1609 .  a - the `PetscCount` value
1610 
1611    Output Parameter:
1612 .  b - the resulting `PetscInt` value
1613 
1614    Level: advanced
1615 
1616    Note:
1617    If integers needed for the applications are too large to fit in 32-bit integers you can ./configure using `--with-64-bit-indices` to make `PetscInt` use 64-bit integers
1618 
1619 .seealso: `PetscCount`, `PetscBLASInt`, `PetscMPIInt`, `PetscInt`, `PetscMPIIntCast()`, `PetscBLASIntCast()`, `PetscIntMultError()`, `PetscIntSumError()`, `PetscIntCast()`
1620 @*/
1621 static inline PetscErrorCode PetscCountCast(PetscCount a, PetscInt *b)
1622 {
1623   PetscFunctionBegin;
1624   *b = 0;
1625   PetscCheck(sizeof(PetscCount) <= sizeof(PetscInt) || a <= PETSC_MAX_INT, 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);
1626   *b = (PetscInt)a;
1627   PetscFunctionReturn(PETSC_SUCCESS);
1628 }
1629 
1630 /*@C
1631    PetscBLASIntCast - casts a `PetscInt` (which may be 64-bits in size) to a `PetscBLASInt` (which may be 32-bits in size), generates an
1632    error if the `PetscBLASInt` is not large enough to hold the number.
1633 
1634    Not Collective; No Fortran Support
1635 
1636    Input Parameter:
1637 .  a - the `PetscInt` value
1638 
1639    Output Parameter:
1640 .  b - the resulting `PetscBLASInt` value
1641 
1642    Level: advanced
1643 
1644    Note:
1645    Errors if the integer is negative since PETSc calls to BLAS/LAPACK never need to cast negative integer inputs
1646 
1647 .seealso: `PetscBLASInt`, `PetscMPIInt`, `PetscInt`, `PetscMPIIntCast()`, `PetscIntCast()`, `PetscCountCast()`
1648 @*/
1649 static inline PetscErrorCode PetscBLASIntCast(PetscInt a, PetscBLASInt *b)
1650 {
1651   PetscFunctionBegin;
1652   *b = 0;
1653   if (PetscDefined(USE_64BIT_INDICES) && !PetscDefined(HAVE_64BIT_BLAS_INDICES)) {
1654     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);
1655   }
1656   PetscCheck(a >= 0, PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Passing negative integer to BLAS/LAPACK routine");
1657   *b = (PetscBLASInt)a;
1658   PetscFunctionReturn(PETSC_SUCCESS);
1659 }
1660 
1661 /*@C
1662    PetscCuBLASIntCast - like `PetscBLASIntCast()`, but for `PetscCuBLASInt`.
1663 
1664    Not Collective; No Fortran Support
1665 
1666    Input Parameter:
1667 .  a - the `PetscInt` value
1668 
1669    Output Parameter:
1670 .  b - the resulting `PetscCuBLASInt` value
1671 
1672    Level: advanced
1673 
1674    Note:
1675    Errors if the integer is negative since PETSc calls to cuBLAS and friends never need to cast negative integer inputs
1676 
1677 .seealso: `PetscCuBLASInt`, `PetscBLASInt`, `PetscMPIInt`, `PetscInt`, `PetscBLASIntCast()`, `PetscMPIIntCast()`, `PetscIntCast()`
1678 @*/
1679 static inline PetscErrorCode PetscCuBLASIntCast(PetscInt a, PetscCuBLASInt *b)
1680 {
1681   PetscFunctionBegin;
1682   *b = 0;
1683   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);
1684   PetscCheck(a >= 0, PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Passing negative integer %" PetscInt_FMT "to cuBLAS routine", a);
1685   *b = (PetscCuBLASInt)a;
1686   PetscFunctionReturn(PETSC_SUCCESS);
1687 }
1688 
1689 /*@C
1690    PetscHipBLASIntCast - like `PetscBLASIntCast()`, but for `PetscHipBLASInt`.
1691 
1692    Not Collective; No Fortran Support
1693 
1694    Input Parameter:
1695 .  a - the `PetscInt` value
1696 
1697    Output Parameter:
1698 .  b - the resulting `PetscHipBLASInt` value
1699 
1700    Level: advanced
1701 
1702    Note:
1703    Errors if the integer is negative since PETSc calls to hipBLAS and friends never need to cast negative integer inputs
1704 
1705 .seealso: `PetscHipBLASInt`, `PetscBLASInt`, `PetscMPIInt`, `PetscInt`, `PetscBLASIntCast()`, `PetscMPIIntCast()`, `PetscIntCast()`
1706 @*/
1707 static inline PetscErrorCode PetscHipBLASIntCast(PetscInt a, PetscHipBLASInt *b)
1708 {
1709   PetscFunctionBegin;
1710   *b = 0;
1711   PetscCheck(a <= PETSC_HIPBLAS_INT_MAX, PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "%" PetscInt_FMT " is too big for hipBLAS, which is restricted to 32-bit integers.", a);
1712   PetscCheck(a >= 0, PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Passing negative integer %" PetscInt_FMT "to hipBLAS routine", a);
1713   *b = (PetscHipBLASInt)a;
1714   PetscFunctionReturn(PETSC_SUCCESS);
1715 }
1716 
1717 /*@C
1718    PetscMPIIntCast - casts a `PetscInt` (which may be 64-bits in size) to a `PetscMPIInt` (which may be 32-bits in size), generates an
1719    error if the `PetscMPIInt` is not large enough to hold the number.
1720 
1721    Not Collective; No Fortran Support
1722 
1723    Input Parameter:
1724 .  a - the `PetscInt` value
1725 
1726    Output Parameter:
1727 .  b - the resulting `PetscMPIInt` value
1728 
1729    Level: advanced
1730 
1731 .seealso: `PetscBLASInt`, `PetscMPIInt`, `PetscInt`, `PetscBLASIntCast()`, `PetscIntCast()`
1732 @*/
1733 static inline PetscErrorCode PetscMPIIntCast(PetscInt a, PetscMPIInt *b)
1734 {
1735   PetscFunctionBegin;
1736   *b = 0;
1737   PetscCheck(a <= PETSC_MPI_INT_MAX, PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "%" PetscInt_FMT " is too big for MPI buffer length. Maximum supported value is %d", a, PETSC_MPI_INT_MAX);
1738   *b = (PetscMPIInt)a;
1739   PetscFunctionReturn(PETSC_SUCCESS);
1740 }
1741 
1742 #define PetscInt64Mult(a, b) (((PetscInt64)(a)) * ((PetscInt64)(b)))
1743 
1744 /*@C
1745   PetscRealIntMultTruncate - Computes the product of a positive `PetscReal` and a positive
1746   `PetscInt` and truncates the value to slightly less than the maximal possible value.
1747 
1748   Not Collective; No Fortran Support
1749 
1750   Input Parameters:
1751 + a - The `PetscReal` value
1752 - b - The `PetscInt` value
1753 
1754   Level: advanced
1755 
1756   Notes:
1757   Returns the result as a `PetscInt` value.
1758 
1759   Use `PetscInt64Mult()` to compute the product of two `PetscInt` as a `PetscInt64`.
1760 
1761   Use `PetscIntMultTruncate()` to compute the product of two positive `PetscInt` and truncate
1762   to fit a `PetscInt`.
1763 
1764   Use `PetscIntMultError()` to compute the product of two `PetscInt` if you wish to generate an
1765   error if the result will not fit in a `PetscInt`.
1766 
1767   Developers Notes:
1768   We currently assume that `PetscInt` addition can never overflow, this is obviously wrong but
1769   requires many more checks.
1770 
1771   This is used where we compute approximate sizes for workspace and need to insure the
1772   workspace is index-able.
1773 
1774 .seealso: `PetscReal`, `PetscInt`, `PetscInt64Mult()`, `PetscIntMultError()`, `PetscIntSumError()`
1775 @*/
1776 static inline PetscInt PetscRealIntMultTruncate(PetscReal a, PetscInt b)
1777 {
1778   PetscInt64 r = (PetscInt64)(a * (PetscReal)b);
1779   if (r > PETSC_MAX_INT - 100) r = PETSC_MAX_INT - 100;
1780   return (PetscInt)r;
1781 }
1782 
1783 /*@C
1784    PetscIntMultTruncate - Computes the product of two positive `PetscInt` and truncates the value to slightly less than the maximal possible value
1785 
1786    Not Collective; No Fortran Support
1787 
1788    Input Parameters:
1789 +  a - the `PetscInt` value
1790 -  b - the second value
1791 
1792    Returns:
1793    The result as a `PetscInt` value
1794 
1795    Level: advanced
1796 
1797    Notes:
1798    Use `PetscInt64Mult()` to compute the product of two `PetscInt` as a `PetscInt64`
1799 
1800    Use `PetscRealIntMultTruncate()` to compute the product of a `PetscReal` and a `PetscInt` and truncate to fit a `PetscInt`
1801 
1802    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`
1803 
1804    Developers Notes:
1805    We currently assume that `PetscInt` addition can never overflow, this is obviously wrong but requires many more checks.
1806 
1807    This is used where we compute approximate sizes for workspace and need to insure the workspace is index-able.
1808 
1809 .seealso: `PetscBLASInt`, `PetscMPIInt`, `PetscInt`, `PetscBLASIntCast()`, `PetscInt64Mult()`, `PetscIntMultError()`, `PetscIntSumError()`,
1810           `PetscIntSumTruncate()`
1811 @*/
1812 static inline PetscInt PetscIntMultTruncate(PetscInt a, PetscInt b)
1813 {
1814   PetscInt64 r = PetscInt64Mult(a, b);
1815   if (r > PETSC_MAX_INT - 100) r = PETSC_MAX_INT - 100;
1816   return (PetscInt)r;
1817 }
1818 
1819 /*@C
1820    PetscIntSumTruncate - Computes the sum of two positive `PetscInt` and truncates the value to slightly less than the maximal possible value
1821 
1822    Not Collective; No Fortran Support
1823 
1824    Input Parameters:
1825 +  a - the `PetscInt` value
1826 -  b - the second value
1827 
1828    Returns:
1829    The result as a `PetscInt` value
1830 
1831    Level: advanced
1832 
1833    Notes:
1834    Use `PetscInt64Mult()` to compute the product of two `PetscInt` as a `PetscInt64`
1835 
1836    Use `PetscRealIntMultTruncate()` to compute the product of a `PetscReal` and a `PetscInt` and truncate to fit a `PetscInt`
1837 
1838    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`
1839 
1840    Developers Note:
1841    This is used where we compute approximate sizes for workspace and need to insure the workspace is index-able.
1842 
1843 .seealso: `PetscBLASInt`, `PetscMPIInt`, `PetscInt`, `PetscBLASIntCast()`, `PetscInt64Mult()`, `PetscIntMultError()`
1844 @*/
1845 static inline PetscInt PetscIntSumTruncate(PetscInt a, PetscInt b)
1846 {
1847   PetscInt64 r = ((PetscInt64)a) + ((PetscInt64)b);
1848   if (r > PETSC_MAX_INT - 100) r = PETSC_MAX_INT - 100;
1849   return (PetscInt)r;
1850 }
1851 
1852 /*@C
1853    PetscIntMultError - Computes the product of two positive `PetscInt` and generates an error with overflow.
1854 
1855    Not Collective; No Fortran Support
1856 
1857    Input Parameters:
1858 +  a - the `PetscInt` value
1859 -  b - the second value
1860 
1861    Output Parameter:
1862 .  result - the result as a `PetscInt` value, or `NULL` if you do not want the result, you just want to check if it overflows
1863 
1864    Level: advanced
1865 
1866    Notes:
1867    Use `PetscInt64Mult()` to compute the product of two `PetscInt` and store in a `PetscInt64`
1868 
1869    Use `PetscIntMultTruncate()` to compute the product of two `PetscInt` and truncate it to fit in a `PetscInt`
1870 
1871    Developers Note:
1872    In most places in the source code we currently assume that `PetscInt` addition does not overflow, this is obviously wrong but requires many more checks.
1873    `PetscIntSumError()` can be used to check for this situation.
1874 
1875 .seealso: `PetscBLASInt`, `PetscMPIInt`, `PetscInt`, `PetscBLASIntCast()`, `PetscIntMult64()`, `PetscIntSumError()`
1876 @*/
1877 static inline PetscErrorCode PetscIntMultError(PetscInt a, PetscInt b, PetscInt *result)
1878 {
1879   PetscInt64 r = PetscInt64Mult(a, b);
1880 
1881   PetscFunctionBegin;
1882   if (result) *result = (PetscInt)r;
1883   if (!PetscDefined(USE_64BIT_INDICES)) {
1884     PetscCheck(r <= PETSC_MAX_INT, PETSC_COMM_SELF, PETSC_ERR_SUP, "Product of two integers %" PetscInt_FMT " %" PetscInt_FMT " 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);
1885   }
1886   PetscFunctionReturn(PETSC_SUCCESS);
1887 }
1888 
1889 /*@C
1890 
1891    PetscIntSumError - Computes the sum of two positive `PetscInt` and generates an error with overflow.
1892 
1893    Not Collective; No Fortran Support
1894 
1895    Input Parameters:
1896 +  a - the `PetscInt` value
1897 -  b - the second value
1898 
1899    Output Parameter:
1900 .  c - the result as a `PetscInt` value,  or `NULL` if you do not want the result, you just want to check if it overflows
1901 
1902    Level: advanced
1903 
1904    Notes:
1905    Use `PetscInt64Mult()` to compute the product of two 32-bit `PetscInt` and store in a `PetscInt64`
1906 
1907    Use `PetscIntMultTruncate()` to compute the product of two `PetscInt` and truncate it to fit in a `PetscInt`
1908 
1909 .seealso: `PetscBLASInt`, `PetscMPIInt`, `PetscInt`, `PetscBLASIntCast()`, `PetscInt64Mult()`, `PetscIntMultError()`
1910 @*/
1911 static inline PetscErrorCode PetscIntSumError(PetscInt a, PetscInt b, PetscInt *result)
1912 {
1913   PetscInt64 r = ((PetscInt64)a) + ((PetscInt64)b);
1914 
1915   PetscFunctionBegin;
1916   if (result) *result = (PetscInt)r;
1917   if (!PetscDefined(USE_64BIT_INDICES)) {
1918     PetscCheck(r <= PETSC_MAX_INT, PETSC_COMM_SELF, PETSC_ERR_SUP, "Sum of two integers %" PetscInt_FMT " %" PetscInt_FMT " 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);
1919   }
1920   PetscFunctionReturn(PETSC_SUCCESS);
1921 }
1922 
1923 /*
1924      The IBM include files define hz, here we hide it so that it may be used as a regular user variable.
1925 */
1926 #if defined(hz)
1927   #undef hz
1928 #endif
1929 
1930 #if defined(PETSC_HAVE_SYS_TYPES_H)
1931   #include <sys/types.h>
1932 #endif
1933 
1934 /*MC
1935 
1936     PETSC_VERSION - This manual page provides information about how PETSc documents and uses its version information. This information is available to both C/C++
1937                     and Fortran compilers when `petscsys.h` is included.
1938 
1939     The current PETSc version and the API for accessing it are defined in <A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/include/petscversion.h.html">include/petscversion.html</A>
1940 
1941     The complete version number is given as the triple  PETSC_VERSION_MAJOR.PETSC_VERSION_MINOR.PETSC_VERSION_SUBMINOR (in short hand x.y.z)
1942 
1943     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
1944     where only a change in the major version number (x) indicates a change in the API.
1945 
1946     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
1947 
1948     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),
1949     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
1950     version number (x.y.z).
1951 
1952     `PETSC_RELEASE_DATE` is the date the x.y version was released (i.e. the version before any patch releases)
1953 
1954     `PETSC_VERSION_DATE` is the date the x.y.z version was released
1955 
1956     `PETSC_VERSION_GIT` is the last git commit to the repository given in the form vx.y.z-wwwww
1957 
1958     `PETSC_VERSION_DATE_GIT` is the date of the last git commit to the repository
1959 
1960     `PETSC_VERSION_()` is deprecated and will eventually be removed.
1961 
1962     Level: intermediate
1963 M*/
1964 
1965 PETSC_EXTERN PetscErrorCode PetscGetArchType(char[], size_t);
1966 PETSC_EXTERN PetscErrorCode PetscGetHostName(char[], size_t);
1967 PETSC_EXTERN PetscErrorCode PetscGetUserName(char[], size_t);
1968 PETSC_EXTERN PetscErrorCode PetscGetProgramName(char[], size_t);
1969 PETSC_EXTERN PetscErrorCode PetscSetProgramName(const char[]);
1970 PETSC_EXTERN PetscErrorCode PetscGetDate(char[], size_t);
1971 PETSC_EXTERN PetscErrorCode PetscGetVersion(char[], size_t);
1972 PETSC_EXTERN PetscErrorCode PetscGetVersionNumber(PetscInt *, PetscInt *, PetscInt *, PetscInt *);
1973 
1974 PETSC_EXTERN PetscErrorCode PetscSortedInt(PetscInt, const PetscInt[], PetscBool *);
1975 PETSC_EXTERN PetscErrorCode PetscSortedInt64(PetscInt, const PetscInt64[], PetscBool *);
1976 PETSC_EXTERN PetscErrorCode PetscSortedMPIInt(PetscInt, const PetscMPIInt[], PetscBool *);
1977 PETSC_EXTERN PetscErrorCode PetscSortedReal(PetscInt, const PetscReal[], PetscBool *);
1978 PETSC_EXTERN PetscErrorCode PetscSortInt(PetscInt, PetscInt[]);
1979 PETSC_EXTERN PetscErrorCode PetscSortInt64(PetscInt, PetscInt64[]);
1980 PETSC_EXTERN PetscErrorCode PetscSortCount(PetscInt, PetscCount[]);
1981 PETSC_EXTERN PetscErrorCode PetscSortReverseInt(PetscInt, PetscInt[]);
1982 PETSC_EXTERN PetscErrorCode PetscSortedRemoveDupsInt(PetscInt *, PetscInt[]);
1983 PETSC_EXTERN PetscErrorCode PetscSortedCheckDupsInt(PetscInt, const PetscInt[], PetscBool *);
1984 PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsInt(PetscInt *, PetscInt[]);
1985 PETSC_EXTERN PetscErrorCode PetscCheckDupsInt(PetscInt, const PetscInt[], PetscBool *);
1986 PETSC_EXTERN PetscErrorCode PetscFindInt(PetscInt, PetscInt, const PetscInt[], PetscInt *);
1987 PETSC_EXTERN PetscErrorCode PetscFindMPIInt(PetscMPIInt, PetscInt, const PetscMPIInt[], PetscInt *);
1988 PETSC_EXTERN PetscErrorCode PetscSortIntWithPermutation(PetscInt, const PetscInt[], PetscInt[]);
1989 PETSC_EXTERN PetscErrorCode PetscSortStrWithPermutation(PetscInt, const char *[], PetscInt[]);
1990 PETSC_EXTERN PetscErrorCode PetscSortIntWithArray(PetscInt, PetscInt[], PetscInt[]);
1991 PETSC_EXTERN PetscErrorCode PetscSortIntWithCountArray(PetscCount, PetscInt[], PetscCount[]);
1992 PETSC_EXTERN PetscErrorCode PetscSortIntWithArrayPair(PetscInt, PetscInt[], PetscInt[], PetscInt[]);
1993 PETSC_EXTERN PetscErrorCode PetscSortIntWithIntCountArrayPair(PetscCount, PetscInt[], PetscInt[], PetscCount[]);
1994 PETSC_EXTERN PetscErrorCode PetscSortMPIInt(PetscInt, PetscMPIInt[]);
1995 PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsMPIInt(PetscInt *, PetscMPIInt[]);
1996 PETSC_EXTERN PetscErrorCode PetscSortMPIIntWithArray(PetscMPIInt, PetscMPIInt[], PetscMPIInt[]);
1997 PETSC_EXTERN PetscErrorCode PetscSortMPIIntWithIntArray(PetscMPIInt, PetscMPIInt[], PetscInt[]);
1998 PETSC_EXTERN PetscErrorCode PetscSortIntWithScalarArray(PetscInt, PetscInt[], PetscScalar[]);
1999 PETSC_EXTERN PetscErrorCode PetscSortIntWithDataArray(PetscInt, PetscInt[], void *, size_t, void *);
2000 PETSC_EXTERN PetscErrorCode PetscSortReal(PetscInt, PetscReal[]);
2001 PETSC_EXTERN PetscErrorCode PetscSortRealWithArrayInt(PetscInt, PetscReal[], PetscInt[]);
2002 PETSC_EXTERN PetscErrorCode PetscSortRealWithPermutation(PetscInt, const PetscReal[], PetscInt[]);
2003 PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsReal(PetscInt *, PetscReal[]);
2004 PETSC_EXTERN PetscErrorCode PetscFindReal(PetscReal, PetscInt, const PetscReal[], PetscReal, PetscInt *);
2005 PETSC_EXTERN PetscErrorCode PetscSortSplit(PetscInt, PetscInt, PetscScalar[], PetscInt[]);
2006 PETSC_EXTERN PetscErrorCode PetscSortSplitReal(PetscInt, PetscInt, PetscReal[], PetscInt[]);
2007 PETSC_EXTERN PetscErrorCode PetscProcessTree(PetscInt, const PetscBool[], const PetscInt[], PetscInt *, PetscInt **, PetscInt **, PetscInt **, PetscInt **);
2008 PETSC_EXTERN PetscErrorCode PetscMergeIntArrayPair(PetscInt, const PetscInt[], const PetscInt[], PetscInt, const PetscInt[], const PetscInt[], PetscInt *, PetscInt **, PetscInt **);
2009 PETSC_EXTERN PetscErrorCode PetscMergeIntArray(PetscInt, const PetscInt[], PetscInt, const PetscInt[], PetscInt *, PetscInt **);
2010 PETSC_EXTERN PetscErrorCode PetscMergeMPIIntArray(PetscInt, const PetscMPIInt[], PetscInt, const PetscMPIInt[], PetscInt *, PetscMPIInt **);
2011 PETSC_EXTERN PetscErrorCode PetscParallelSortedInt(MPI_Comm, PetscInt, const PetscInt[], PetscBool *);
2012 
2013 PETSC_EXTERN PetscErrorCode PetscTimSort(PetscInt, void *, size_t, int (*)(const void *, const void *, void *), void *);
2014 PETSC_EXTERN PetscErrorCode PetscIntSortSemiOrdered(PetscInt, PetscInt[]);
2015 PETSC_EXTERN PetscErrorCode PetscMPIIntSortSemiOrdered(PetscInt, PetscMPIInt[]);
2016 PETSC_EXTERN PetscErrorCode PetscRealSortSemiOrdered(PetscInt, PetscReal[]);
2017 PETSC_EXTERN PetscErrorCode PetscTimSortWithArray(PetscInt, void *, size_t, void *, size_t, int (*)(const void *, const void *, void *), void *);
2018 PETSC_EXTERN PetscErrorCode PetscIntSortSemiOrderedWithArray(PetscInt, PetscInt[], PetscInt[]);
2019 PETSC_EXTERN PetscErrorCode PetscMPIIntSortSemiOrderedWithArray(PetscInt, PetscMPIInt[], PetscMPIInt[]);
2020 PETSC_EXTERN PetscErrorCode PetscRealSortSemiOrderedWithArrayInt(PetscInt, PetscReal[], PetscInt[]);
2021 
2022 PETSC_EXTERN PetscErrorCode PetscSetDisplay(void);
2023 PETSC_EXTERN PetscErrorCode PetscGetDisplay(char[], size_t);
2024 
2025 /*J
2026     PetscRandomType - String with the name of a PETSc randomizer
2027 
2028    Level: beginner
2029 
2030    Note:
2031    To use `PETSCSPRNG` or `PETSCRANDOM123` you must have ./configure PETSc
2032    with the option `--download-sprng` or `--download-random123`. We recommend the default provided with PETSc.
2033 
2034 .seealso: `PetscRandomSetType()`, `PetscRandom`, `PetscRandomCreate()`
2035 J*/
2036 typedef const char *PetscRandomType;
2037 #define PETSCRAND      "rand"
2038 #define PETSCRAND48    "rand48"
2039 #define PETSCSPRNG     "sprng"
2040 #define PETSCRANDER48  "rander48"
2041 #define PETSCRANDOM123 "random123"
2042 #define PETSCCURAND    "curand"
2043 
2044 /* Logging support */
2045 PETSC_EXTERN PetscClassId PETSC_RANDOM_CLASSID;
2046 
2047 PETSC_EXTERN PetscErrorCode PetscRandomInitializePackage(void);
2048 PETSC_EXTERN PetscErrorCode PetscRandomFinalizePackage(void);
2049 
2050 /* Dynamic creation and loading functions */
2051 PETSC_EXTERN PetscFunctionList PetscRandomList;
2052 
2053 PETSC_EXTERN PetscErrorCode PetscRandomRegister(const char[], PetscErrorCode (*)(PetscRandom));
2054 PETSC_EXTERN PetscErrorCode PetscRandomSetType(PetscRandom, PetscRandomType);
2055 PETSC_EXTERN PetscErrorCode PetscRandomSetFromOptions(PetscRandom);
2056 PETSC_EXTERN PetscErrorCode PetscRandomGetType(PetscRandom, PetscRandomType *);
2057 PETSC_EXTERN PetscErrorCode PetscRandomViewFromOptions(PetscRandom, PetscObject, const char[]);
2058 PETSC_EXTERN PetscErrorCode PetscRandomView(PetscRandom, PetscViewer);
2059 
2060 PETSC_EXTERN PetscErrorCode PetscRandomCreate(MPI_Comm, PetscRandom *);
2061 PETSC_EXTERN PetscErrorCode PetscRandomGetValue(PetscRandom, PetscScalar *);
2062 PETSC_EXTERN PetscErrorCode PetscRandomGetValueReal(PetscRandom, PetscReal *);
2063 PETSC_EXTERN PetscErrorCode PetscRandomGetValues(PetscRandom, PetscInt, PetscScalar *);
2064 PETSC_EXTERN PetscErrorCode PetscRandomGetValuesReal(PetscRandom, PetscInt, PetscReal *);
2065 PETSC_EXTERN PetscErrorCode PetscRandomGetInterval(PetscRandom, PetscScalar *, PetscScalar *);
2066 PETSC_EXTERN PetscErrorCode PetscRandomSetInterval(PetscRandom, PetscScalar, PetscScalar);
2067 PETSC_EXTERN PetscErrorCode PetscRandomSetSeed(PetscRandom, unsigned long);
2068 PETSC_EXTERN PetscErrorCode PetscRandomGetSeed(PetscRandom, unsigned long *);
2069 PETSC_EXTERN PetscErrorCode PetscRandomSeed(PetscRandom);
2070 PETSC_EXTERN PetscErrorCode PetscRandomDestroy(PetscRandom *);
2071 
2072 PETSC_EXTERN PetscErrorCode PetscGetFullPath(const char[], char[], size_t);
2073 PETSC_EXTERN PetscErrorCode PetscGetRelativePath(const char[], char[], size_t);
2074 PETSC_EXTERN PetscErrorCode PetscGetWorkingDirectory(char[], size_t);
2075 PETSC_EXTERN PetscErrorCode PetscGetRealPath(const char[], char[]);
2076 PETSC_EXTERN PetscErrorCode PetscGetHomeDirectory(char[], size_t);
2077 PETSC_EXTERN PetscErrorCode PetscTestFile(const char[], char, PetscBool *);
2078 PETSC_EXTERN PetscErrorCode PetscTestDirectory(const char[], char, PetscBool *);
2079 PETSC_EXTERN PetscErrorCode PetscMkdir(const char[]);
2080 PETSC_EXTERN PetscErrorCode PetscMkdtemp(char[]);
2081 PETSC_EXTERN PetscErrorCode PetscRMTree(const char[]);
2082 
2083 static inline PetscBool PetscBinaryBigEndian(void)
2084 {
2085   long _petsc_v = 1;
2086   return ((char *)&_petsc_v)[0] ? PETSC_FALSE : PETSC_TRUE;
2087 }
2088 
2089 PETSC_EXTERN PetscErrorCode PetscBinaryRead(int, void *, PetscInt, PetscInt *, PetscDataType);
2090 PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedRead(MPI_Comm, int, void *, PetscInt, PetscInt *, PetscDataType);
2091 PETSC_EXTERN PetscErrorCode PetscBinaryWrite(int, const void *, PetscInt, PetscDataType);
2092 PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedWrite(MPI_Comm, int, const void *, PetscInt, PetscDataType);
2093 PETSC_EXTERN PetscErrorCode PetscBinaryOpen(const char[], PetscFileMode, int *);
2094 PETSC_EXTERN PetscErrorCode PetscBinaryClose(int);
2095 PETSC_EXTERN PetscErrorCode PetscSharedTmp(MPI_Comm, PetscBool *);
2096 PETSC_EXTERN PetscErrorCode PetscSharedWorkingDirectory(MPI_Comm, PetscBool *);
2097 PETSC_EXTERN PetscErrorCode PetscGetTmp(MPI_Comm, char[], size_t);
2098 PETSC_EXTERN PetscErrorCode PetscFileRetrieve(MPI_Comm, const char[], char[], size_t, PetscBool *);
2099 PETSC_EXTERN PetscErrorCode PetscLs(MPI_Comm, const char[], char[], size_t, PetscBool *);
2100 #if defined(PETSC_USE_SOCKET_VIEWER)
2101 PETSC_EXTERN PetscErrorCode PetscOpenSocket(const char[], int, int *);
2102 #endif
2103 
2104 PETSC_EXTERN PetscErrorCode PetscBinarySeek(int, off_t, PetscBinarySeekType, off_t *);
2105 PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedSeek(MPI_Comm, int, off_t, PetscBinarySeekType, off_t *);
2106 PETSC_EXTERN PetscErrorCode PetscByteSwap(void *, PetscDataType, PetscInt);
2107 
2108 PETSC_EXTERN PetscErrorCode PetscSetDebugTerminal(const char[]);
2109 PETSC_EXTERN PetscErrorCode PetscSetDebugger(const char[], PetscBool);
2110 PETSC_EXTERN PetscErrorCode PetscSetDefaultDebugger(void);
2111 PETSC_EXTERN PetscErrorCode PetscSetDebuggerFromString(const char *);
2112 PETSC_EXTERN PetscErrorCode PetscAttachDebugger(void);
2113 PETSC_EXTERN PetscErrorCode PetscStopForDebugger(void);
2114 PETSC_EXTERN PetscErrorCode PetscWaitOnError(void);
2115 
2116 PETSC_EXTERN PetscErrorCode PetscGatherNumberOfMessages(MPI_Comm, const PetscMPIInt[], const PetscMPIInt[], PetscMPIInt *);
2117 PETSC_EXTERN PetscErrorCode PetscGatherMessageLengths(MPI_Comm, PetscMPIInt, PetscMPIInt, const PetscMPIInt[], PetscMPIInt **, PetscMPIInt **);
2118 PETSC_EXTERN PetscErrorCode PetscGatherMessageLengths2(MPI_Comm, PetscMPIInt, PetscMPIInt, const PetscMPIInt[], const PetscMPIInt[], PetscMPIInt **, PetscMPIInt **, PetscMPIInt **);
2119 PETSC_EXTERN PetscErrorCode PetscPostIrecvInt(MPI_Comm, PetscMPIInt, PetscMPIInt, const PetscMPIInt[], const PetscMPIInt[], PetscInt ***, MPI_Request **);
2120 PETSC_EXTERN PetscErrorCode PetscPostIrecvScalar(MPI_Comm, PetscMPIInt, PetscMPIInt, const PetscMPIInt[], const PetscMPIInt[], PetscScalar ***, MPI_Request **);
2121 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSided(MPI_Comm, PetscMPIInt, MPI_Datatype, PetscMPIInt, const PetscMPIInt *, const void *, PetscMPIInt *, PetscMPIInt **, void *) PETSC_ATTRIBUTE_MPI_POINTER_WITH_TYPE(6, 3);
2122 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedF(MPI_Comm, PetscMPIInt, MPI_Datatype, PetscMPIInt, const PetscMPIInt[], const void *, PetscMPIInt *, PetscMPIInt **, void *, PetscMPIInt, PetscErrorCode (*send)(MPI_Comm, const PetscMPIInt[], PetscMPIInt, PetscMPIInt, void *, MPI_Request[], void *), PetscErrorCode (*recv)(MPI_Comm, const PetscMPIInt[], PetscMPIInt, void *, MPI_Request[], void *), void *ctx) PETSC_ATTRIBUTE_MPI_POINTER_WITH_TYPE(6, 3);
2123 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedFReq(MPI_Comm, PetscMPIInt, MPI_Datatype, PetscMPIInt, const PetscMPIInt[], const void *, PetscMPIInt *, PetscMPIInt **, void *, PetscMPIInt, MPI_Request **, MPI_Request **, PetscErrorCode (*send)(MPI_Comm, const PetscMPIInt[], PetscMPIInt, PetscMPIInt, void *, MPI_Request[], void *), PetscErrorCode (*recv)(MPI_Comm, const PetscMPIInt[], PetscMPIInt, void *, MPI_Request[], void *), void *ctx) PETSC_ATTRIBUTE_MPI_POINTER_WITH_TYPE(6, 3);
2124 
2125 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedSetType(MPI_Comm, PetscBuildTwoSidedType);
2126 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedGetType(MPI_Comm, PetscBuildTwoSidedType *);
2127 
2128 PETSC_EXTERN PetscErrorCode PetscSSEIsEnabled(MPI_Comm, PetscBool *, PetscBool *);
2129 
2130 PETSC_EXTERN MPI_Comm PetscObjectComm(PetscObject);
2131 
2132 struct _n_PetscSubcomm {
2133   MPI_Comm         parent;    /* parent communicator */
2134   MPI_Comm         dupparent; /* duplicate parent communicator, under which the processors of this subcomm have contiguous rank */
2135   MPI_Comm         child;     /* the sub-communicator */
2136   PetscMPIInt      n;         /* num of subcommunicators under the parent communicator */
2137   PetscMPIInt      color;     /* color of processors belong to this communicator */
2138   PetscMPIInt     *subsize;   /* size of subcommunicator[color] */
2139   PetscSubcommType type;
2140   char            *subcommprefix;
2141 };
2142 
2143 static inline MPI_Comm PetscSubcommParent(PetscSubcomm scomm)
2144 {
2145   return scomm->parent;
2146 }
2147 static inline MPI_Comm PetscSubcommChild(PetscSubcomm scomm)
2148 {
2149   return scomm->child;
2150 }
2151 static inline MPI_Comm PetscSubcommContiguousParent(PetscSubcomm scomm)
2152 {
2153   return scomm->dupparent;
2154 }
2155 PETSC_EXTERN PetscErrorCode PetscSubcommCreate(MPI_Comm, PetscSubcomm *);
2156 PETSC_EXTERN PetscErrorCode PetscSubcommDestroy(PetscSubcomm *);
2157 PETSC_EXTERN PetscErrorCode PetscSubcommSetNumber(PetscSubcomm, PetscInt);
2158 PETSC_EXTERN PetscErrorCode PetscSubcommSetType(PetscSubcomm, PetscSubcommType);
2159 PETSC_EXTERN PetscErrorCode PetscSubcommSetTypeGeneral(PetscSubcomm, PetscMPIInt, PetscMPIInt);
2160 PETSC_EXTERN PetscErrorCode PetscSubcommView(PetscSubcomm, PetscViewer);
2161 PETSC_EXTERN PetscErrorCode PetscSubcommSetFromOptions(PetscSubcomm);
2162 PETSC_EXTERN PetscErrorCode PetscSubcommSetOptionsPrefix(PetscSubcomm, const char[]);
2163 PETSC_EXTERN PetscErrorCode PetscSubcommGetParent(PetscSubcomm, MPI_Comm *);
2164 PETSC_EXTERN PetscErrorCode PetscSubcommGetContiguousParent(PetscSubcomm, MPI_Comm *);
2165 PETSC_EXTERN PetscErrorCode PetscSubcommGetChild(PetscSubcomm, MPI_Comm *);
2166 
2167 PETSC_EXTERN PetscErrorCode PetscHeapCreate(PetscInt, PetscHeap *);
2168 PETSC_EXTERN PetscErrorCode PetscHeapAdd(PetscHeap, PetscInt, PetscInt);
2169 PETSC_EXTERN PetscErrorCode PetscHeapPop(PetscHeap, PetscInt *, PetscInt *);
2170 PETSC_EXTERN PetscErrorCode PetscHeapPeek(PetscHeap, PetscInt *, PetscInt *);
2171 PETSC_EXTERN PetscErrorCode PetscHeapStash(PetscHeap, PetscInt, PetscInt);
2172 PETSC_EXTERN PetscErrorCode PetscHeapUnstash(PetscHeap);
2173 PETSC_EXTERN PetscErrorCode PetscHeapDestroy(PetscHeap *);
2174 PETSC_EXTERN PetscErrorCode PetscHeapView(PetscHeap, PetscViewer);
2175 
2176 PETSC_EXTERN PetscErrorCode PetscProcessPlacementView(PetscViewer);
2177 PETSC_EXTERN PetscErrorCode PetscShmCommGet(MPI_Comm, PetscShmComm *);
2178 PETSC_EXTERN PetscErrorCode PetscShmCommGlobalToLocal(PetscShmComm, PetscMPIInt, PetscMPIInt *);
2179 PETSC_EXTERN PetscErrorCode PetscShmCommLocalToGlobal(PetscShmComm, PetscMPIInt, PetscMPIInt *);
2180 PETSC_EXTERN PetscErrorCode PetscShmCommGetMpiShmComm(PetscShmComm, MPI_Comm *);
2181 
2182 /* routines to better support OpenMP multithreading needs of some PETSc third party libraries */
2183 PETSC_EXTERN PetscErrorCode PetscOmpCtrlCreate(MPI_Comm, PetscInt, PetscOmpCtrl *);
2184 PETSC_EXTERN PetscErrorCode PetscOmpCtrlGetOmpComms(PetscOmpCtrl, MPI_Comm *, MPI_Comm *, PetscBool *);
2185 PETSC_EXTERN PetscErrorCode PetscOmpCtrlDestroy(PetscOmpCtrl *);
2186 PETSC_EXTERN PetscErrorCode PetscOmpCtrlBarrier(PetscOmpCtrl);
2187 PETSC_EXTERN PetscErrorCode PetscOmpCtrlOmpRegionOnMasterBegin(PetscOmpCtrl);
2188 PETSC_EXTERN PetscErrorCode PetscOmpCtrlOmpRegionOnMasterEnd(PetscOmpCtrl);
2189 
2190 PETSC_EXTERN PetscErrorCode PetscSegBufferCreate(size_t, size_t, PetscSegBuffer *);
2191 PETSC_EXTERN PetscErrorCode PetscSegBufferDestroy(PetscSegBuffer *);
2192 PETSC_EXTERN PetscErrorCode PetscSegBufferGet(PetscSegBuffer, size_t, void *);
2193 PETSC_EXTERN PetscErrorCode PetscSegBufferExtractAlloc(PetscSegBuffer, void *);
2194 PETSC_EXTERN PetscErrorCode PetscSegBufferExtractTo(PetscSegBuffer, void *);
2195 PETSC_EXTERN PetscErrorCode PetscSegBufferExtractInPlace(PetscSegBuffer, void *);
2196 PETSC_EXTERN PetscErrorCode PetscSegBufferGetSize(PetscSegBuffer, size_t *);
2197 PETSC_EXTERN PetscErrorCode PetscSegBufferUnuse(PetscSegBuffer, size_t);
2198 
2199 /* Type-safe wrapper to encourage use of PETSC_RESTRICT. Does not use PetscFunctionBegin because the error handling
2200  * prevents the compiler from completely erasing the stub. This is called in inner loops so it has to be as fast as
2201  * possible. */
2202 static inline PetscErrorCode PetscSegBufferGetInts(PetscSegBuffer seg, size_t count, PetscInt *PETSC_RESTRICT *slot)
2203 {
2204   return PetscSegBufferGet(seg, count, (void **)slot);
2205 }
2206 
2207 extern PetscOptionsHelpPrinted PetscOptionsHelpPrintedSingleton;
2208 PETSC_EXTERN PetscErrorCode    PetscOptionsHelpPrintedDestroy(PetscOptionsHelpPrinted *);
2209 PETSC_EXTERN PetscErrorCode    PetscOptionsHelpPrintedCreate(PetscOptionsHelpPrinted *);
2210 PETSC_EXTERN PetscErrorCode    PetscOptionsHelpPrintedCheck(PetscOptionsHelpPrinted, const char *, const char *, PetscBool *);
2211 
2212 #include <stdarg.h>
2213 PETSC_EXTERN PetscErrorCode PetscVSNPrintf(char *, size_t, const char[], size_t *, va_list);
2214 PETSC_EXTERN                PetscErrorCode (*PetscVFPrintf)(FILE *, const char[], va_list);
2215 
2216 PETSC_EXTERN PetscSegBuffer PetscCitationsList;
2217 
2218 /*@C
2219      PetscCitationsRegister - Register a bibtex item to obtain credit for an implemented algorithm used in the code.
2220 
2221      Not Collective; No Fortran Support
2222 
2223      Input Parameters:
2224 +    cite - the bibtex item, formatted to displayed on multiple lines nicely
2225 -    set - a boolean variable initially set to `PETSC_FALSE`; this is used to insure only a single registration of the citation
2226 
2227      Options Database Key:
2228 .     -citations [filename]   - print out the bibtex entries for the given computation
2229 
2230      Level: intermediate
2231 @*/
2232 static inline PetscErrorCode PetscCitationsRegister(const char cit[], PetscBool *set)
2233 {
2234   size_t len;
2235   char  *vstring;
2236 
2237   PetscFunctionBegin;
2238   if (set && *set) PetscFunctionReturn(PETSC_SUCCESS);
2239   PetscCall(PetscStrlen(cit, &len));
2240   PetscCall(PetscSegBufferGet(PetscCitationsList, len, &vstring));
2241   PetscCall(PetscArraycpy(vstring, cit, len));
2242   if (set) *set = PETSC_TRUE;
2243   PetscFunctionReturn(PETSC_SUCCESS);
2244 }
2245 
2246 PETSC_EXTERN PetscErrorCode PetscGoogleDriveAuthorize(MPI_Comm, char[], char[], size_t);
2247 PETSC_EXTERN PetscErrorCode PetscGoogleDriveRefresh(MPI_Comm, const char[], char[], size_t);
2248 PETSC_EXTERN PetscErrorCode PetscGoogleDriveUpload(MPI_Comm, const char[], const char[]);
2249 
2250 PETSC_EXTERN PetscErrorCode PetscBoxAuthorize(MPI_Comm, char[], char[], size_t);
2251 PETSC_EXTERN PetscErrorCode PetscBoxRefresh(MPI_Comm, const char[], char[], char[], size_t);
2252 PETSC_EXTERN PetscErrorCode PetscBoxUpload(MPI_Comm, const char[], const char[]);
2253 
2254 PETSC_EXTERN PetscErrorCode PetscGlobusGetTransfers(MPI_Comm, const char[], char[], size_t);
2255 PETSC_EXTERN PetscErrorCode PetscGlobusAuthorize(MPI_Comm, char[], size_t);
2256 PETSC_EXTERN PetscErrorCode PetscGlobusUpload(MPI_Comm, const char[], const char[]);
2257 
2258 PETSC_EXTERN PetscErrorCode PetscPullJSONValue(const char[], const char[], char[], size_t, PetscBool *);
2259 PETSC_EXTERN PetscErrorCode PetscPushJSONValue(char[], const char[], const char[], size_t);
2260 
2261 #if defined(PETSC_USE_DEBUG)
2262 static inline unsigned int PetscStrHash(const char *str)
2263 {
2264   unsigned int c, hash = 5381;
2265 
2266   while ((c = (unsigned int)*str++)) hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
2267   return hash;
2268 }
2269 
2270   /*MC
2271    MPIU_Allreduce - a PETSc replacement for `MPI_Allreduce()` that tries to determine if the call from all the MPI ranks occur from the
2272                     same place in the PETSc code. This helps to detect bugs where different MPI ranks follow different code paths
2273                     resulting in inconsistent and incorrect calls to `MPI_Allreduce()`.
2274 
2275    Synopsis:
2276      #include <petscsys.h>
2277      PetscErrorCode MPIU_Allreduce(void *indata,void *outdata,PetscMPIInt count,MPI_Datatype datatype, MPI_Op op, MPI_Comm comm);
2278 
2279    Collective
2280 
2281    Input Parameters:
2282 +  a - pointer to the input data to be reduced
2283 .  c - the number of MPI data items in a and b
2284 .  d - the MPI datatype, for example `MPI_INT`
2285 .  e - the MPI operation, for example `MPI_SUM`
2286 -  fcomm - the MPI communicator on which the operation occurs
2287 
2288    Output Parameter:
2289 .  b - the reduced values
2290 
2291    Level: developer
2292 
2293    Notes:
2294    In optimized mode this directly calls `MPI_Allreduce()`
2295 
2296    This is defined as a macro that can return error codes internally so it cannot be used in a subroutine that returns void.
2297 
2298    The error code this returns should be checked with `PetscCall()` even though it looks like an MPI function because it always returns PETSc error codes
2299 
2300 .seealso: `MPI_Allreduce()`
2301 M*/
2302   #define MPIU_Allreduce(a, b, c, d, e, fcomm) \
2303     PetscMacroReturnStandard( \
2304     PetscMPIInt a_b1[6], a_b2[6]; \
2305     int _mpiu_allreduce_c_int = (int)(c); \
2306     a_b1[0] = -(PetscMPIInt)__LINE__; \
2307     a_b1[1] = -a_b1[0]; \
2308     a_b1[2] = -(PetscMPIInt)PetscStrHash(PETSC_FUNCTION_NAME); \
2309     a_b1[3] = -a_b1[2]; \
2310     a_b1[4] = -(PetscMPIInt)(c); \
2311     a_b1[5] = -a_b1[4]; \
2312     \
2313     PetscCallMPI(MPI_Allreduce(a_b1, a_b2, 6, MPI_INT, MPI_MAX, fcomm)); \
2314     PetscCheck(-a_b2[0] == a_b2[1], PETSC_COMM_SELF, PETSC_ERR_PLIB, "MPI_Allreduce() called in different locations (code lines) on different processors"); \
2315     PetscCheck(-a_b2[2] == a_b2[3], PETSC_COMM_SELF, PETSC_ERR_PLIB, "MPI_Allreduce() called in different locations (functions) on different processors"); \
2316     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); \
2317     PetscCallMPI(MPI_Allreduce((a), (b), (c), (d), (e), (fcomm)));)
2318 #else
2319   #define MPIU_Allreduce(a, b, c, d, e, fcomm) PetscMacroReturnStandard(PetscCallMPI(MPI_Allreduce((a), (b), (c), (d), (e), (fcomm))))
2320 #endif
2321 
2322 #if defined(PETSC_HAVE_MPI_PROCESS_SHARED_MEMORY)
2323 PETSC_EXTERN PetscErrorCode MPIU_Win_allocate_shared(MPI_Aint, PetscMPIInt, MPI_Info, MPI_Comm, void *, MPI_Win *);
2324 PETSC_EXTERN PetscErrorCode MPIU_Win_shared_query(MPI_Win, PetscMPIInt, MPI_Aint *, PetscMPIInt *, void *);
2325 #endif
2326 
2327 /* this is a vile hack */
2328 #if defined(PETSC_HAVE_NECMPI)
2329   #if !defined(PETSC_NECMPI_VERSION_MAJOR) || !defined(PETSC_NECMPI_VERSION_MINOR) || PETSC_NECMPI_VERSION_MAJOR < 2 || (PETSC_NECMPI_VERSION_MAJOR == 2 && PETSC_NECMPI_VERSION_MINOR < 18)
2330     #define MPI_Type_free(a) (*(a) = MPI_DATATYPE_NULL, 0);
2331   #endif
2332 #endif
2333 
2334 /*
2335     List of external packages and queries on it
2336 */
2337 PETSC_EXTERN PetscErrorCode PetscHasExternalPackage(const char[], PetscBool *);
2338 
2339 /* this cannot go here because it may be in a different shared library */
2340 PETSC_EXTERN PetscErrorCode PCMPIServerBegin(void);
2341 PETSC_EXTERN PetscErrorCode PCMPIServerEnd(void);
2342 PETSC_EXTERN PetscErrorCode PCMPICommsDestroy(void);
2343 PETSC_EXTERN PetscBool      PCMPIServerActive;
2344 
2345 #define PETSC_HAVE_FORTRAN PETSC_DEPRECATED_MACRO(3, 20, 0, "PETSC_USE_FORTRAN_BINDINGS", ) PETSC_USE_FORTRAN_BINDINGS
2346