1 /* 2 This is the main PETSc include file (for C and C++). It is included by all 3 other PETSc include files, so it almost never has to be specifically included. 4 */ 5 #if !defined(__PETSCSYS_H) 6 #define __PETSCSYS_H 7 /* ========================================================================== */ 8 /* 9 petscconf.h is contained in ${PETSC_ARCH}/include/petscconf.h it is 10 found automatically by the compiler due to the -I${PETSC_DIR}/${PETSC_ARCH}/include 11 in the conf/variables definition of PETSC_INCLUDE. For --prefix installs the ${PETSC_ARCH}/ 12 does not exist and petscconf.h is in the same directory as the other PETSc include files. 13 */ 14 #include <petscconf.h> 15 #include <petscfix.h> 16 17 #if defined(PETSC_DESIRE_FEATURE_TEST_MACROS) 18 /* 19 Feature test macros must be included before headers defined by IEEE Std 1003.1-2001 20 We only turn these in PETSc source files that require them by setting PETSC_DESIRE_FEATURE_TEST_MACROS 21 */ 22 #if defined(PETSC__POSIX_C_SOURCE_200112L) && !defined(_POSIX_C_SOURCE) 23 #define _POSIX_C_SOURCE 200112L 24 #endif 25 #if defined(PETSC__BSD_SOURCE) && !defined(_BSD_SOURCE) 26 #define _BSD_SOURCE 27 #endif 28 #if defined(PETSC__GNU_SOURCE) && !defined(_GNU_SOURCE) 29 #define _GNU_SOURCE 30 #endif 31 #endif 32 33 /* ========================================================================== */ 34 /* 35 This facilitates using the C version of PETSc from C++ and the C++ version from C. 36 */ 37 #if defined(__cplusplus) 38 # define PETSC_FUNCTION_NAME PETSC_FUNCTION_NAME_CXX 39 #else 40 # define PETSC_FUNCTION_NAME PETSC_FUNCTION_NAME_C 41 #endif 42 43 #if defined(__cplusplus) 44 # define PETSC_RESTRICT PETSC_CXX_RESTRICT 45 #else 46 # define PETSC_RESTRICT PETSC_C_RESTRICT 47 #endif 48 49 #if defined(__cplusplus) 50 # define PETSC_STATIC_INLINE PETSC_CXX_STATIC_INLINE 51 #else 52 # define PETSC_STATIC_INLINE PETSC_C_STATIC_INLINE 53 #endif 54 55 #if defined(_WIN32) && defined(PETSC_USE_SHARED_LIBRARIES) /* For Win32 shared libraries */ 56 # define PETSC_DLLEXPORT __declspec(dllexport) 57 # define PETSC_DLLIMPORT __declspec(dllimport) 58 # define PETSC_VISIBILITY_INTERNAL 59 #elif defined(PETSC_USE_VISIBILITY) 60 # define PETSC_DLLEXPORT __attribute__((visibility ("default"))) 61 # define PETSC_DLLIMPORT __attribute__((visibility ("default"))) 62 # define PETSC_VISIBILITY_INTERNAL __attribute__((visibility ("hidden"))) 63 #else 64 # define PETSC_DLLEXPORT 65 # define PETSC_DLLIMPORT 66 # define PETSC_VISIBILITY_INTERNAL 67 #endif 68 69 #if defined(petsc_EXPORTS) /* CMake defines this when building the shared library */ 70 # define PETSC_VISIBILITY_PUBLIC PETSC_DLLEXPORT 71 #else /* Win32 users need this to import symbols from petsc.dll */ 72 # define PETSC_VISIBILITY_PUBLIC PETSC_DLLIMPORT 73 #endif 74 75 #if defined(__cplusplus) 76 #define PETSC_EXTERN extern "C" PETSC_VISIBILITY_PUBLIC 77 #define PETSC_EXTERN_TYPEDEF extern "C" 78 #define PETSC_INTERN extern "C" PETSC_VISIBILITY_INTERNAL 79 #else 80 #define PETSC_EXTERN extern PETSC_VISIBILITY_PUBLIC 81 #define PETSC_EXTERN_TYPEDEF 82 #define PETSC_INTERN extern PETSC_VISIBILITY_INTERNAL 83 #endif 84 85 #include <petscversion.h> 86 #define PETSC_AUTHOR_INFO " The PETSc Team\n petsc-maint@mcs.anl.gov\n http://www.mcs.anl.gov/petsc/\n" 87 88 /* ========================================================================== */ 89 90 /* 91 Defines the interface to MPI allowing the use of all MPI functions. 92 93 PETSc does not use the C++ binding of MPI at ALL. The following flag 94 makes sure the C++ bindings are not included. The C++ bindings REQUIRE 95 putting mpi.h before ANY C++ include files, we cannot control this 96 with all PETSc users. Users who want to use the MPI C++ bindings can include 97 mpicxx.h directly in their code 98 */ 99 #if !defined(MPICH_SKIP_MPICXX) 100 # define MPICH_SKIP_MPICXX 1 101 #endif 102 #if !defined(OMPI_SKIP_MPICXX) 103 # define OMPI_SKIP_MPICXX 1 104 #endif 105 #include <mpi.h> 106 107 /* 108 Need to put stdio.h AFTER mpi.h for MPICH2 with C++ compiler 109 see the top of mpicxx.h in the MPICH2 distribution. 110 */ 111 #include <stdio.h> 112 113 /* MSMPI on 32bit windows requires this yukky hack - that breaks MPI standard compliance */ 114 #if !defined(MPIAPI) 115 #define MPIAPI 116 #endif 117 118 /* Support for Clang (>=3.2) matching type tag arguments with void* buffer types */ 119 #if defined(__has_attribute) 120 # if __has_attribute(argument_with_type_tag) && __has_attribute(pointer_with_type_tag) && __has_attribute(type_tag_for_datatype) 121 # define PetscAttrMPIPointerWithType(bufno,typeno) __attribute__((pointer_with_type_tag(MPI,bufno,typeno))) 122 # define PetscAttrMPITypeTag(type) __attribute__((type_tag_for_datatype(MPI,type))) 123 # define PetscAttrMPITypeTagLayoutCompatible(type) __attribute__((type_tag_for_datatype(MPI,type,layout_compatible))) 124 # endif 125 #endif 126 #if !defined(PetscAttrMPIPointerWithType) 127 # define PetscAttrMPIPointerWithType(bufno,typeno) 128 # define PetscAttrMPITypeTag(type) 129 # define PetscAttrMPITypeTagLayoutCompatible(type) 130 #endif 131 132 /*MC 133 PetscErrorCode - datatype used for return error code from all PETSc functions 134 135 Level: beginner 136 137 .seealso: CHKERRQ, SETERRQ 138 M*/ 139 typedef int PetscErrorCode; 140 141 /*MC 142 143 PetscClassId - A unique id used to identify each PETSc class. 144 (internal integer in the data structure used for error 145 checking). These are all computed by an offset from the lowest 146 one, PETSC_SMALLEST_CLASSID. 147 148 Level: advanced 149 150 .seealso: PetscClassIdRegister(), PetscLogEventRegister(), PetscHeaderCreate() 151 M*/ 152 typedef int PetscClassId; 153 154 155 /*MC 156 PetscMPIInt - datatype used to represent 'int' parameters to MPI functions. 157 158 Level: intermediate 159 160 Notes: usually this is the same as PetscInt, but if PETSc was built with --with-64-bit-indices but 161 standard C/Fortran integers are 32 bit then this is NOT the same as PetscInt it remains 32 bit 162 163 PetscMPIIntCast(a,&b) checks if the given PetscInt a will fit in a PetscMPIInt, if not it 164 generates a PETSC_ERR_ARG_OUTOFRANGE error. 165 166 .seealso: PetscBLASInt, PetscInt 167 168 M*/ 169 typedef int PetscMPIInt; 170 171 /*MC 172 PetscEnum - datatype used to pass enum types within PETSc functions. 173 174 Level: intermediate 175 176 .seealso: PetscOptionsGetEnum(), PetscOptionsEnum(), PetscBagRegisterEnum() 177 M*/ 178 typedef enum { ENUM_DUMMY } PetscEnum; 179 PETSC_EXTERN MPI_Datatype MPIU_ENUM PetscAttrMPITypeTag(PetscEnum); 180 181 /*MC 182 PetscInt - PETSc type that represents integer - used primarily to 183 represent size of arrays and indexing into arrays. Its size can be configured with the option 184 --with-64-bit-indices - to be either 32bit or 64bit [default 32 bit ints] 185 186 Level: intermediate 187 188 .seealso: PetscScalar, PetscBLASInt, PetscMPIInt 189 M*/ 190 #if (PETSC_SIZEOF_LONG_LONG == 8) 191 typedef long long Petsc64bitInt; 192 #elif defined(PETSC_HAVE___INT64) 193 typedef __int64 Petsc64bitInt; 194 #else 195 typedef unknown64bit Petsc64bitInt 196 #endif 197 #if defined(PETSC_USE_64BIT_INDICES) 198 typedef Petsc64bitInt PetscInt; 199 #define MPIU_INT MPI_LONG_LONG_INT 200 #else 201 typedef int PetscInt; 202 #define MPIU_INT MPI_INT 203 #endif 204 205 206 /*MC 207 PetscBLASInt - datatype used to represent 'int' parameters to BLAS/LAPACK functions. 208 209 Level: intermediate 210 211 Notes: usually this is the same as PetscInt, but if PETSc was built with --with-64-bit-indices but 212 standard C/Fortran integers are 32 bit then this is NOT the same as PetscInt it remains 32 bit 213 (except on very rare BLAS/LAPACK implementations that support 64 bit integers see the note below). 214 215 PetscErrorCode PetscBLASIntCast(a,&b) checks if the given PetscInt a will fit in a PetscBLASInt, if not it 216 generates a PETSC_ERR_ARG_OUTOFRANGE error 217 218 Installation Notes: The 64bit versions of MATLAB ship with BLAS and LAPACK that use 64 bit integers for sizes etc, 219 if you run ./configure with the option 220 --with-blas-lapack-lib=[/Applications/MATLAB_R2010b.app/bin/maci64/libmwblas.dylib,/Applications/MATLAB_R2010b.app/bin/maci64/libmwlapack.dylib] 221 but you need to also use --known-64-bit-blas-indices. 222 223 MKL also ships with 64 bit integer versions of the BLAS and LAPACK, if you select those you must also ./configure with --known-64-bit-blas-indices 224 225 Developer Notes: Eventually ./configure should automatically determine the size of the integers used by BLAS/LAPACK. 226 227 External packages such as hypre, ML, SuperLU etc do not provide any support for passing 64 bit integers to BLAS/LAPACK so cannot 228 be used with PETSc if you have set PetscBLASInt to long int. 229 230 .seealso: PetscMPIInt, PetscInt 231 232 M*/ 233 #if defined(PETSC_HAVE_64BIT_BLAS_INDICES) 234 typedef Petsc64bitInt PetscBLASInt; 235 #else 236 typedef int PetscBLASInt; 237 #endif 238 239 /*EC 240 241 PetscPrecision - indicates what precision the object is using. This is currently not used. 242 243 Level: advanced 244 245 .seealso: PetscObjectSetPrecision() 246 E*/ 247 typedef enum { PETSC_PRECISION_SINGLE=4,PETSC_PRECISION_DOUBLE=8 } PetscPrecision; 248 PETSC_EXTERN const char *PetscPrecisions[]; 249 250 /* 251 For the rare cases when one needs to send a size_t object with MPI 252 */ 253 #if (PETSC_SIZEOF_SIZE_T) == (PETSC_SIZEOF_INT) 254 #define MPIU_SIZE_T MPI_UNSIGNED 255 #elif (PETSC_SIZEOF_SIZE_T) == (PETSC_SIZEOF_LONG) 256 #define MPIU_SIZE_T MPI_UNSIGNED_LONG 257 #elif (PETSC_SIZEOF_SIZE_T) == (PETSC_SIZEOF_LONG_LONG) 258 #define MPIU_SIZE_T MPI_UNSIGNED_LONG_LONG 259 #else 260 #error "Unknown size for size_t! Send us a bugreport at petsc-maint@mcs.anl.gov" 261 #endif 262 263 264 /* 265 You can use PETSC_STDOUT as a replacement of stdout. You can also change 266 the value of PETSC_STDOUT to redirect all standard output elsewhere 267 */ 268 PETSC_EXTERN FILE* PETSC_STDOUT; 269 270 /* 271 You can use PETSC_STDERR as a replacement of stderr. You can also change 272 the value of PETSC_STDERR to redirect all standard error elsewhere 273 */ 274 PETSC_EXTERN FILE* PETSC_STDERR; 275 276 /*MC 277 PetscUnlikely - hints the compiler that the given condition is usually FALSE 278 279 Synopsis: 280 #include "petscsys.h" 281 PetscBool PetscUnlikely(PetscBool cond) 282 283 Not Collective 284 285 Input Parameters: 286 . cond - condition or expression 287 288 Note: This returns the same truth value, it is only a hint to compilers that the resulting 289 branch is unlikely. 290 291 Level: advanced 292 293 .seealso: PetscLikely(), CHKERRQ 294 M*/ 295 296 /*MC 297 PetscLikely - hints the compiler that the given condition is usually TRUE 298 299 Synopsis: 300 #include "petscsys.h" 301 PetscBool PetscUnlikely(PetscBool cond) 302 303 Not Collective 304 305 Input Parameters: 306 . cond - condition or expression 307 308 Note: This returns the same truth value, it is only a hint to compilers that the resulting 309 branch is likely. 310 311 Level: advanced 312 313 .seealso: PetscUnlikely() 314 M*/ 315 #if defined(PETSC_HAVE_BUILTIN_EXPECT) 316 # define PetscUnlikely(cond) __builtin_expect(!!(cond),0) 317 # define PetscLikely(cond) __builtin_expect(!!(cond),1) 318 #else 319 # define PetscUnlikely(cond) (cond) 320 # define PetscLikely(cond) (cond) 321 #endif 322 323 /* 324 Defines some elementary mathematics functions and constants. 325 */ 326 #include <petscmath.h> 327 328 /* 329 Declare extern C stuff after including external header files 330 */ 331 332 333 /* 334 Basic PETSc constants 335 */ 336 337 /*E 338 PetscBool - Logical variable. Actually an int in C and a logical in Fortran. 339 340 Level: beginner 341 342 Developer Note: Why have PetscBool , why not use bool in C? The problem is that K and R C, C99 and C++ all have different mechanisms for 343 boolean values. It is not easy to have a simple macro that that will work properly in all circumstances with all three mechanisms. 344 345 E*/ 346 typedef enum { PETSC_FALSE,PETSC_TRUE } PetscBool; 347 PETSC_EXTERN const char *const PetscBools[]; 348 PETSC_EXTERN MPI_Datatype MPIU_BOOL PetscAttrMPITypeTag(PetscBool); 349 350 /*E 351 PetscCopyMode - Determines how an array passed to certain functions is copied or retained 352 353 Level: beginner 354 355 $ PETSC_COPY_VALUES - the array values are copied into new space, the user is free to reuse or delete the passed in array 356 $ PETSC_OWN_POINTER - the array values are NOT copied, the object takes ownership of the array and will free it later, the user cannot change or 357 $ delete the array. The array MUST have been obtained with PetscMalloc(). Hence this mode cannot be used in Fortran. 358 $ PETSC_USE_POINTER - the array values are NOT copied, the object uses the array but does NOT take ownership of the array. The user cannot use 359 the array but the user must delete the array after the object is destroyed. 360 361 E*/ 362 typedef enum { PETSC_COPY_VALUES, PETSC_OWN_POINTER, PETSC_USE_POINTER} PetscCopyMode; 363 PETSC_EXTERN const char *const PetscCopyModes[]; 364 365 /*MC 366 PETSC_FALSE - False value of PetscBool 367 368 Level: beginner 369 370 Note: Zero integer 371 372 .seealso: PetscBool , PETSC_TRUE 373 M*/ 374 375 /*MC 376 PETSC_TRUE - True value of PetscBool 377 378 Level: beginner 379 380 Note: Nonzero integer 381 382 .seealso: PetscBool , PETSC_FALSE 383 M*/ 384 385 /*MC 386 PETSC_NULL - standard way of passing in a null or array or pointer. This is deprecated in C/C++ simply use NULL 387 388 Level: beginner 389 390 Notes: accepted by many PETSc functions to not set a parameter and instead use 391 some default 392 393 This macro does not exist in Fortran; you must use PETSC_NULL_INTEGER, 394 PETSC_NULL_DOUBLE_PRECISION, PETSC_NULL_FUNCTION, PETSC_NULL_OBJECT etc 395 396 .seealso: PETSC_DECIDE, PETSC_DEFAULT, PETSC_IGNORE, PETSC_DETERMINE 397 398 M*/ 399 #define PETSC_NULL NULL 400 401 /*MC 402 PETSC_IGNORE - same as NULL, means PETSc will ignore this argument 403 404 Level: beginner 405 406 Note: accepted by many PETSc functions to not set a parameter and instead use 407 some default 408 409 Fortran Notes: This macro does not exist in Fortran; you must use PETSC_NULL_INTEGER, 410 PETSC_NULL_DOUBLE_PRECISION etc 411 412 .seealso: PETSC_DECIDE, PETSC_DEFAULT, PETSC_NULL, PETSC_DETERMINE 413 414 M*/ 415 #define PETSC_IGNORE NULL 416 417 /*MC 418 PETSC_DECIDE - standard way of passing in integer or floating point parameter 419 where you wish PETSc to use the default. 420 421 Level: beginner 422 423 .seealso: PETSC_NULL, PETSC_DEFAULT, PETSC_IGNORE, PETSC_DETERMINE 424 425 M*/ 426 #define PETSC_DECIDE -1 427 428 /*MC 429 PETSC_DETERMINE - standard way of passing in integer or floating point parameter 430 where you wish PETSc to compute the required value. 431 432 Level: beginner 433 434 435 Developer Note: I would like to use const PetscInt PETSC_DETERMINE = PETSC_DECIDE; but for 436 some reason this is not allowed by the standard even though PETSC_DECIDE is a constant value. 437 438 .seealso: PETSC_DECIDE, PETSC_DEFAULT, PETSC_IGNORE, VecSetSizes() 439 440 M*/ 441 #define PETSC_DETERMINE PETSC_DECIDE 442 443 /*MC 444 PETSC_DEFAULT - standard way of passing in integer or floating point parameter 445 where you wish PETSc to use the default. 446 447 Level: beginner 448 449 Fortran Notes: You need to use PETSC_DEFAULT_INTEGER or PETSC_DEFAULT_DOUBLE_PRECISION. 450 451 .seealso: PETSC_DECIDE, PETSC_IGNORE, PETSC_DETERMINE 452 453 M*/ 454 #define PETSC_DEFAULT -2 455 456 /*MC 457 PETSC_COMM_WORLD - the equivalent of the MPI_COMM_WORLD communicator which represents 458 all the processs that PETSc knows about. 459 460 Level: beginner 461 462 Notes: By default PETSC_COMM_WORLD and MPI_COMM_WORLD are identical unless you wish to 463 run PETSc on ONLY a subset of MPI_COMM_WORLD. In that case create your new (smaller) 464 communicator, call it, say comm, and set PETSC_COMM_WORLD = comm BEFORE calling 465 PetscInitialize() 466 467 .seealso: PETSC_COMM_SELF 468 469 M*/ 470 PETSC_EXTERN MPI_Comm PETSC_COMM_WORLD; 471 472 /*MC 473 PETSC_COMM_SELF - This is always MPI_COMM_SELF 474 475 Level: beginner 476 477 .seealso: PETSC_COMM_WORLD 478 479 M*/ 480 #define PETSC_COMM_SELF MPI_COMM_SELF 481 482 PETSC_EXTERN PetscBool PetscBeganMPI; 483 PETSC_EXTERN PetscBool PetscInitializeCalled; 484 PETSC_EXTERN PetscBool PetscFinalizeCalled; 485 PETSC_EXTERN PetscBool PetscCUSPSynchronize; 486 487 PETSC_EXTERN PetscErrorCode PetscSetHelpVersionFunctions(PetscErrorCode (*)(MPI_Comm),PetscErrorCode (*)(MPI_Comm)); 488 PETSC_EXTERN PetscErrorCode PetscCommDuplicate(MPI_Comm,MPI_Comm*,int*); 489 PETSC_EXTERN PetscErrorCode PetscCommDestroy(MPI_Comm*); 490 491 /*MC 492 PetscMalloc - Allocates memory 493 494 Synopsis: 495 #include "petscsys.h" 496 PetscErrorCode PetscMalloc(size_t m,void **result) 497 498 Not Collective 499 500 Input Parameter: 501 . m - number of bytes to allocate 502 503 Output Parameter: 504 . result - memory allocated 505 506 Level: beginner 507 508 Notes: Memory is always allocated at least double aligned 509 510 If you request memory of zero size it will allocate no space and assign the pointer to 0; PetscFree() will 511 properly handle not freeing the null pointer. 512 513 .seealso: PetscFree(), PetscNew() 514 515 Concepts: memory allocation 516 517 M*/ 518 #define PetscMalloc(a,b) ((a != 0) ? (*PetscTrMalloc)((a),__LINE__,PETSC_FUNCTION_NAME,__FILE__,__SDIR__,(void**)(b)) : (*(b) = 0,0) ) 519 520 /*MC 521 PetscAddrAlign - Rounds up an address to PETSC_MEMALIGN alignment 522 523 Synopsis: 524 #include "petscsys.h" 525 void *PetscAddrAlign(void *addr) 526 527 Not Collective 528 529 Input Parameters: 530 . addr - address to align (any pointer type) 531 532 Level: developer 533 534 .seealso: PetscMallocAlign() 535 536 Concepts: memory allocation 537 M*/ 538 #define PetscAddrAlign(a) (void*)((((PETSC_UINTPTR_T)(a))+(PETSC_MEMALIGN-1)) & ~(PETSC_MEMALIGN-1)) 539 540 /*MC 541 PetscMalloc2 - Allocates 2 chunks of memory both aligned to PETSC_MEMALIGN 542 543 Synopsis: 544 #include "petscsys.h" 545 PetscErrorCode PetscMalloc2(size_t m1,type, t1,void **r1,size_t m2,type t2,void **r2) 546 547 Not Collective 548 549 Input Parameter: 550 + m1 - number of elements to allocate in 1st chunk (may be zero) 551 . t1 - type of first memory elements 552 . m2 - number of elements to allocate in 2nd chunk (may be zero) 553 - t2 - type of second memory elements 554 555 Output Parameter: 556 + r1 - memory allocated in first chunk 557 - r2 - memory allocated in second chunk 558 559 Level: developer 560 561 .seealso: PetscFree(), PetscNew(), PetscMalloc() 562 563 Concepts: memory allocation 564 565 M*/ 566 #if defined(PETSC_USE_DEBUG) 567 #define PetscMalloc2(m1,t1,r1,m2,t2,r2) (PetscMalloc((m1)*sizeof(t1),r1) || PetscMalloc((m2)*sizeof(t2),r2)) 568 #else 569 #define PetscMalloc2(m1,t1,r1,m2,t2,r2) ((*(r2) = 0,PetscMalloc((m1)*sizeof(t1)+(m2)*sizeof(t2)+(PETSC_MEMALIGN-1),r1)) || (*(r2) = (t2*)PetscAddrAlign(*(r1)+m1),0)) 570 #endif 571 572 /*MC 573 PetscMalloc3 - Allocates 3 chunks of memory all aligned to PETSC_MEMALIGN 574 575 Synopsis: 576 #include "petscsys.h" 577 PetscErrorCode PetscMalloc3(size_t m1,type, t1,void **r1,size_t m2,type t2,void **r2,size_t m3,type t3,void **r3) 578 579 Not Collective 580 581 Input Parameter: 582 + m1 - number of elements to allocate in 1st chunk (may be zero) 583 . t1 - type of first memory elements 584 . m2 - number of elements to allocate in 2nd chunk (may be zero) 585 . t2 - type of second memory elements 586 . m3 - number of elements to allocate in 3rd chunk (may be zero) 587 - t3 - type of third memory elements 588 589 Output Parameter: 590 + r1 - memory allocated in first chunk 591 . r2 - memory allocated in second chunk 592 - r3 - memory allocated in third chunk 593 594 Level: developer 595 596 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree3() 597 598 Concepts: memory allocation 599 600 M*/ 601 #if defined(PETSC_USE_DEBUG) 602 #define PetscMalloc3(m1,t1,r1,m2,t2,r2,m3,t3,r3) (PetscMalloc((m1)*sizeof(t1),r1) || PetscMalloc((m2)*sizeof(t2),r2) || PetscMalloc((m3)*sizeof(t3),r3)) 603 #else 604 #define PetscMalloc3(m1,t1,r1,m2,t2,r2,m3,t3,r3) ((*(r2) = 0,*(r3) = 0,PetscMalloc((m1)*sizeof(t1)+(m2)*sizeof(t2)+(m3)*sizeof(t3)+2*(PETSC_MEMALIGN-1),r1)) \ 605 || (*(r2) = (t2*)PetscAddrAlign(*(r1)+m1),*(r3) = (t3*)PetscAddrAlign(*(r2)+m2),0)) 606 #endif 607 608 /*MC 609 PetscMalloc4 - Allocates 4 chunks of memory all aligned to PETSC_MEMALIGN 610 611 Synopsis: 612 #include "petscsys.h" 613 PetscErrorCode PetscMalloc4(size_t m1,type, t1,void **r1,size_t m2,type t2,void **r2,size_t m3,type t3,void **r3,size_t m4,type t4,void **r4) 614 615 Not Collective 616 617 Input Parameter: 618 + m1 - number of elements to allocate in 1st chunk (may be zero) 619 . t1 - type of first memory elements 620 . m2 - number of elements to allocate in 2nd chunk (may be zero) 621 . t2 - type of second memory elements 622 . m3 - number of elements to allocate in 3rd chunk (may be zero) 623 . t3 - type of third memory elements 624 . m4 - number of elements to allocate in 4th chunk (may be zero) 625 - t4 - type of fourth memory elements 626 627 Output Parameter: 628 + r1 - memory allocated in first chunk 629 . r2 - memory allocated in second chunk 630 . r3 - memory allocated in third chunk 631 - r4 - memory allocated in fourth chunk 632 633 Level: developer 634 635 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree3(), PetscFree4() 636 637 Concepts: memory allocation 638 639 M*/ 640 #if defined(PETSC_USE_DEBUG) 641 #define PetscMalloc4(m1,t1,r1,m2,t2,r2,m3,t3,r3,m4,t4,r4) (PetscMalloc((m1)*sizeof(t1),r1) || PetscMalloc((m2)*sizeof(t2),r2) || PetscMalloc((m3)*sizeof(t3),r3) || PetscMalloc((m4)*sizeof(t4),r4)) 642 #else 643 #define PetscMalloc4(m1,t1,r1,m2,t2,r2,m3,t3,r3,m4,t4,r4) \ 644 ((*(r2) = 0, *(r3) = 0, *(r4) = 0,PetscMalloc((m1)*sizeof(t1)+(m2)*sizeof(t2)+(m3)*sizeof(t3)+(m4)*sizeof(t4)+3*(PETSC_MEMALIGN-1),r1)) \ 645 || (*(r2) = (t2*)PetscAddrAlign(*(r1)+m1),*(r3) = (t3*)PetscAddrAlign(*(r2)+m2),*(r4) = (t4*)PetscAddrAlign(*(r3)+m3),0)) 646 #endif 647 648 /*MC 649 PetscMalloc5 - Allocates 5 chunks of memory all aligned to PETSC_MEMALIGN 650 651 Synopsis: 652 #include "petscsys.h" 653 PetscErrorCode PetscMalloc5(size_t m1,type, t1,void **r1,size_t m2,type t2,void **r2,size_t m3,type t3,void **r3,size_t m4,type t4,void **r4,size_t m5,type t5,void **r5) 654 655 Not Collective 656 657 Input Parameter: 658 + m1 - number of elements to allocate in 1st chunk (may be zero) 659 . t1 - type of first memory elements 660 . m2 - number of elements to allocate in 2nd chunk (may be zero) 661 . t2 - type of second memory elements 662 . m3 - number of elements to allocate in 3rd chunk (may be zero) 663 . t3 - type of third memory elements 664 . m4 - number of elements to allocate in 4th chunk (may be zero) 665 . t4 - type of fourth memory elements 666 . m5 - number of elements to allocate in 5th chunk (may be zero) 667 - t5 - type of fifth memory elements 668 669 Output Parameter: 670 + r1 - memory allocated in first chunk 671 . r2 - memory allocated in second chunk 672 . r3 - memory allocated in third chunk 673 . r4 - memory allocated in fourth chunk 674 - r5 - memory allocated in fifth chunk 675 676 Level: developer 677 678 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree3(), PetscFree4(), PetscFree5() 679 680 Concepts: memory allocation 681 682 M*/ 683 #if defined(PETSC_USE_DEBUG) 684 #define PetscMalloc5(m1,t1,r1,m2,t2,r2,m3,t3,r3,m4,t4,r4,m5,t5,r5) (PetscMalloc((m1)*sizeof(t1),r1) || PetscMalloc((m2)*sizeof(t2),r2) || PetscMalloc((m3)*sizeof(t3),r3) || PetscMalloc((m4)*sizeof(t4),r4) || PetscMalloc((m5)*sizeof(t5),r5)) 685 #else 686 #define PetscMalloc5(m1,t1,r1,m2,t2,r2,m3,t3,r3,m4,t4,r4,m5,t5,r5) \ 687 ((*(r2) = 0, *(r3) = 0, *(r4) = 0,*(r5) = 0,PetscMalloc((m1)*sizeof(t1)+(m2)*sizeof(t2)+(m3)*sizeof(t3)+(m4)*sizeof(t4)+(m5)*sizeof(t5)+4*(PETSC_MEMALIGN-1),r1)) \ 688 || (*(r2) = (t2*)PetscAddrAlign(*(r1)+m1),*(r3) = (t3*)PetscAddrAlign(*(r2)+m2),*(r4) = (t4*)PetscAddrAlign(*(r3)+m3),*(r5) = (t5*)PetscAddrAlign(*(r4)+m4),0)) 689 #endif 690 691 692 /*MC 693 PetscMalloc6 - Allocates 6 chunks of memory all aligned to PETSC_MEMALIGN 694 695 Synopsis: 696 #include "petscsys.h" 697 PetscErrorCode PetscMalloc6(size_t m1,type, t1,void **r1,size_t m2,type t2,void **r2,size_t m3,type t3,void **r3,size_t m4,type t4,void **r4,size_t m5,type t5,void **r5,size_t m6,type t6,void **r6) 698 699 Not Collective 700 701 Input Parameter: 702 + m1 - number of elements to allocate in 1st chunk (may be zero) 703 . t1 - type of first memory elements 704 . m2 - number of elements to allocate in 2nd chunk (may be zero) 705 . t2 - type of second memory elements 706 . m3 - number of elements to allocate in 3rd chunk (may be zero) 707 . t3 - type of third memory elements 708 . m4 - number of elements to allocate in 4th chunk (may be zero) 709 . t4 - type of fourth memory elements 710 . m5 - number of elements to allocate in 5th chunk (may be zero) 711 . t5 - type of fifth memory elements 712 . m6 - number of elements to allocate in 6th chunk (may be zero) 713 - t6 - type of sixth memory elements 714 715 Output Parameter: 716 + r1 - memory allocated in first chunk 717 . r2 - memory allocated in second chunk 718 . r3 - memory allocated in third chunk 719 . r4 - memory allocated in fourth chunk 720 . r5 - memory allocated in fifth chunk 721 - r6 - memory allocated in sixth chunk 722 723 Level: developer 724 725 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree3(), PetscFree4(), PetscFree5(), PetscFree6() 726 727 Concepts: memory allocation 728 729 M*/ 730 #if defined(PETSC_USE_DEBUG) 731 #define PetscMalloc6(m1,t1,r1,m2,t2,r2,m3,t3,r3,m4,t4,r4,m5,t5,r5,m6,t6,r6) (PetscMalloc((m1)*sizeof(t1),r1) || PetscMalloc((m2)*sizeof(t2),r2) || PetscMalloc((m3)*sizeof(t3),r3) || PetscMalloc((m4)*sizeof(t4),r4) || PetscMalloc((m5)*sizeof(t5),r5) || PetscMalloc((m6)*sizeof(t6),r6)) 732 #else 733 #define PetscMalloc6(m1,t1,r1,m2,t2,r2,m3,t3,r3,m4,t4,r4,m5,t5,r5,m6,t6,r6) \ 734 ((*(r2) = 0, *(r3) = 0, *(r4) = 0,*(r5) = 0,*(r6) = 0,PetscMalloc((m1)*sizeof(t1)+(m2)*sizeof(t2)+(m3)*sizeof(t3)+(m4)*sizeof(t4)+(m5)*sizeof(t5)+(m6)*sizeof(t6)+5*(PETSC_MEMALIGN-1),r1)) \ 735 || (*(r2) = (t2*)PetscAddrAlign(*(r1)+m1),*(r3) = (t3*)PetscAddrAlign(*(r2)+m2),*(r4) = (t4*)PetscAddrAlign(*(r3)+m3),*(r5) = (t5*)PetscAddrAlign(*(r4)+m4),*(r6) = (t6*)PetscAddrAlign(*(r5)+m5),0)) 736 #endif 737 738 /*MC 739 PetscMalloc7 - Allocates 7 chunks of memory all aligned to PETSC_MEMALIGN 740 741 Synopsis: 742 #include "petscsys.h" 743 PetscErrorCode PetscMalloc7(size_t m1,type, t1,void **r1,size_t m2,type t2,void **r2,size_t m3,type t3,void **r3,size_t m4,type t4,void **r4,size_t m5,type t5,void **r5,size_t m6,type t6,void **r6,size_t m7,type t7,void **r7) 744 745 Not Collective 746 747 Input Parameter: 748 + m1 - number of elements to allocate in 1st chunk (may be zero) 749 . t1 - type of first memory elements 750 . m2 - number of elements to allocate in 2nd chunk (may be zero) 751 . t2 - type of second memory elements 752 . m3 - number of elements to allocate in 3rd chunk (may be zero) 753 . t3 - type of third memory elements 754 . m4 - number of elements to allocate in 4th chunk (may be zero) 755 . t4 - type of fourth memory elements 756 . m5 - number of elements to allocate in 5th chunk (may be zero) 757 . t5 - type of fifth memory elements 758 . m6 - number of elements to allocate in 6th chunk (may be zero) 759 . t6 - type of sixth memory elements 760 . m7 - number of elements to allocate in 7th chunk (may be zero) 761 - t7 - type of sixth memory elements 762 763 Output Parameter: 764 + r1 - memory allocated in first chunk 765 . r2 - memory allocated in second chunk 766 . r3 - memory allocated in third chunk 767 . r4 - memory allocated in fourth chunk 768 . r5 - memory allocated in fifth chunk 769 . r6 - memory allocated in sixth chunk 770 - r7 - memory allocated in seventh chunk 771 772 Level: developer 773 774 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree3(), PetscFree4(), PetscFree5(), PetscFree6(), PetscFree7() 775 776 Concepts: memory allocation 777 778 M*/ 779 #if defined(PETSC_USE_DEBUG) 780 #define PetscMalloc7(m1,t1,r1,m2,t2,r2,m3,t3,r3,m4,t4,r4,m5,t5,r5,m6,t6,r6,m7,t7,r7) (PetscMalloc((m1)*sizeof(t1),r1) || PetscMalloc((m2)*sizeof(t2),r2) || PetscMalloc((m3)*sizeof(t3),r3) || PetscMalloc((m4)*sizeof(t4),r4) || PetscMalloc((m5)*sizeof(t5),r5) || PetscMalloc((m6)*sizeof(t6),r6) || PetscMalloc((m7)*sizeof(t7),r7)) 781 #else 782 #define PetscMalloc7(m1,t1,r1,m2,t2,r2,m3,t3,r3,m4,t4,r4,m5,t5,r5,m6,t6,r6,m7,t7,r7) \ 783 ((*(r2) = 0, *(r3) = 0, *(r4) = 0,*(r5) = 0,*(r6) = 0,*(r7) = 0,PetscMalloc((m1)*sizeof(t1)+(m2)*sizeof(t2)+(m3)*sizeof(t3)+(m4)*sizeof(t4)+(m5)*sizeof(t5)+(m6)*sizeof(t6)+(m7)*sizeof(t7)+6*(PETSC_MEMALIGN-1),r1)) \ 784 || (*(r2) = (t2*)PetscAddrAlign(*(r1)+m1),*(r3) = (t3*)PetscAddrAlign(*(r2)+m2),*(r4) = (t4*)PetscAddrAlign(*(r3)+m3),*(r5) = (t5*)PetscAddrAlign(*(r4)+m4),*(r6) = (t6*)PetscAddrAlign(*(r5)+m5),*(r7) = (t7*)PetscAddrAlign(*(r6)+m6),0)) 785 #endif 786 787 /*MC 788 PetscNew - Allocates memory of a particular type, zeros the memory! Aligned to PETSC_MEMALIGN 789 790 Synopsis: 791 #include "petscsys.h" 792 PetscErrorCode PetscNew(struct type,((type *))result) 793 794 Not Collective 795 796 Input Parameter: 797 . type - structure name of space to be allocated. Memory of size sizeof(type) is allocated 798 799 Output Parameter: 800 . result - memory allocated 801 802 Level: beginner 803 804 .seealso: PetscFree(), PetscMalloc(), PetscNewLog() 805 806 Concepts: memory allocation 807 808 M*/ 809 #define PetscNew(A,b) (PetscMalloc(sizeof(A),(b)) || PetscMemzero(*(b),sizeof(A))) 810 811 /*MC 812 PetscNewLog - Allocates memory of a particular type, zeros the memory! Aligned to PETSC_MEMALIGN. Associates the memory allocated 813 with the given object using PetscLogObjectMemory(). 814 815 Synopsis: 816 #include "petscsys.h" 817 PetscErrorCode PetscNewLog(PetscObject obj,struct type,((type *))result) 818 819 Not Collective 820 821 Input Parameter: 822 + obj - object memory is logged to 823 - type - structure name of space to be allocated. Memory of size sizeof(type) is allocated 824 825 Output Parameter: 826 . result - memory allocated 827 828 Level: developer 829 830 .seealso: PetscFree(), PetscMalloc(), PetscNew(), PetscLogObjectMemory() 831 832 Concepts: memory allocation 833 834 M*/ 835 #define PetscNewLog(o,A,b) (PetscNew(A,b) || ((o) ? PetscLogObjectMemory(o,sizeof(A)) : 0)) 836 837 /*MC 838 PetscFree - Frees memory 839 840 Synopsis: 841 #include "petscsys.h" 842 PetscErrorCode PetscFree(void *memory) 843 844 Not Collective 845 846 Input Parameter: 847 . memory - memory to free (the pointer is ALWAYS set to 0 upon sucess) 848 849 Level: beginner 850 851 Notes: Memory must have been obtained with PetscNew() or PetscMalloc() 852 853 .seealso: PetscNew(), PetscMalloc(), PetscFreeVoid() 854 855 Concepts: memory allocation 856 857 M*/ 858 #define PetscFree(a) ((a) && ((*PetscTrFree)((void*)(a),__LINE__,PETSC_FUNCTION_NAME,__FILE__,__SDIR__) || ((a) = 0,0))) 859 860 /*MC 861 PetscFreeVoid - Frees memory 862 863 Synopsis: 864 #include "petscsys.h" 865 void PetscFreeVoid(void *memory) 866 867 Not Collective 868 869 Input Parameter: 870 . memory - memory to free 871 872 Level: beginner 873 874 Notes: This is different from PetscFree() in that no error code is returned 875 876 .seealso: PetscFree(), PetscNew(), PetscMalloc() 877 878 Concepts: memory allocation 879 880 M*/ 881 #define PetscFreeVoid(a) ((*PetscTrFree)((a),__LINE__,PETSC_FUNCTION_NAME,__FILE__,__SDIR__),(a) = 0) 882 883 884 /*MC 885 PetscFree2 - Frees 2 chunks of memory obtained with PetscMalloc2() 886 887 Synopsis: 888 #include "petscsys.h" 889 PetscErrorCode PetscFree2(void *memory1,void *memory2) 890 891 Not Collective 892 893 Input Parameter: 894 + memory1 - memory to free 895 - memory2 - 2nd memory to free 896 897 Level: developer 898 899 Notes: Memory must have been obtained with PetscMalloc2() 900 901 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree() 902 903 Concepts: memory allocation 904 905 M*/ 906 #if defined(PETSC_USE_DEBUG) 907 #define PetscFree2(m1,m2) (PetscFree(m2) || PetscFree(m1)) 908 #else 909 #define PetscFree2(m1,m2) ((m2)=0, PetscFree(m1)) 910 #endif 911 912 /*MC 913 PetscFree3 - Frees 3 chunks of memory obtained with PetscMalloc3() 914 915 Synopsis: 916 #include "petscsys.h" 917 PetscErrorCode PetscFree3(void *memory1,void *memory2,void *memory3) 918 919 Not Collective 920 921 Input Parameter: 922 + memory1 - memory to free 923 . memory2 - 2nd memory to free 924 - memory3 - 3rd memory to free 925 926 Level: developer 927 928 Notes: Memory must have been obtained with PetscMalloc3() 929 930 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3() 931 932 Concepts: memory allocation 933 934 M*/ 935 #if defined(PETSC_USE_DEBUG) 936 #define PetscFree3(m1,m2,m3) (PetscFree(m3) || PetscFree(m2) || PetscFree(m1)) 937 #else 938 #define PetscFree3(m1,m2,m3) ((m3)=0,(m2)=0,PetscFree(m1)) 939 #endif 940 941 /*MC 942 PetscFree4 - Frees 4 chunks of memory obtained with PetscMalloc4() 943 944 Synopsis: 945 #include "petscsys.h" 946 PetscErrorCode PetscFree4(void *m1,void *m2,void *m3,void *m4) 947 948 Not Collective 949 950 Input Parameter: 951 + m1 - memory to free 952 . m2 - 2nd memory to free 953 . m3 - 3rd memory to free 954 - m4 - 4th memory to free 955 956 Level: developer 957 958 Notes: Memory must have been obtained with PetscMalloc4() 959 960 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4() 961 962 Concepts: memory allocation 963 964 M*/ 965 #if defined(PETSC_USE_DEBUG) 966 #define PetscFree4(m1,m2,m3,m4) (PetscFree(m4) || PetscFree(m3) || PetscFree(m2) || PetscFree(m1)) 967 #else 968 #define PetscFree4(m1,m2,m3,m4) ((m4)=0,(m3)=0,(m2)=0,PetscFree(m1)) 969 #endif 970 971 /*MC 972 PetscFree5 - Frees 5 chunks of memory obtained with PetscMalloc5() 973 974 Synopsis: 975 #include "petscsys.h" 976 PetscErrorCode PetscFree5(void *m1,void *m2,void *m3,void *m4,void *m5) 977 978 Not Collective 979 980 Input Parameter: 981 + m1 - memory to free 982 . m2 - 2nd memory to free 983 . m3 - 3rd memory to free 984 . m4 - 4th memory to free 985 - m5 - 5th memory to free 986 987 Level: developer 988 989 Notes: Memory must have been obtained with PetscMalloc5() 990 991 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4(), PetscMalloc5() 992 993 Concepts: memory allocation 994 995 M*/ 996 #if defined(PETSC_USE_DEBUG) 997 #define PetscFree5(m1,m2,m3,m4,m5) (PetscFree(m5) || PetscFree(m4) || PetscFree(m3) || PetscFree(m2) || PetscFree(m1)) 998 #else 999 #define PetscFree5(m1,m2,m3,m4,m5) ((m5)=0,(m4)=0,(m3)=0,(m2)=0,PetscFree(m1)) 1000 #endif 1001 1002 1003 /*MC 1004 PetscFree6 - Frees 6 chunks of memory obtained with PetscMalloc6() 1005 1006 Synopsis: 1007 #include "petscsys.h" 1008 PetscErrorCode PetscFree6(void *m1,void *m2,void *m3,void *m4,void *m5,void *m6) 1009 1010 Not Collective 1011 1012 Input Parameter: 1013 + m1 - memory to free 1014 . m2 - 2nd memory to free 1015 . m3 - 3rd memory to free 1016 . m4 - 4th memory to free 1017 . m5 - 5th memory to free 1018 - m6 - 6th memory to free 1019 1020 1021 Level: developer 1022 1023 Notes: Memory must have been obtained with PetscMalloc6() 1024 1025 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4(), PetscMalloc5(), PetscMalloc6() 1026 1027 Concepts: memory allocation 1028 1029 M*/ 1030 #if defined(PETSC_USE_DEBUG) 1031 #define PetscFree6(m1,m2,m3,m4,m5,m6) (PetscFree(m6) || PetscFree(m5) || PetscFree(m4) || PetscFree(m3) || PetscFree(m2) || PetscFree(m1)) 1032 #else 1033 #define PetscFree6(m1,m2,m3,m4,m5,m6) ((m6)=0,(m5)=0,(m4)=0,(m3)=0,(m2)=0,PetscFree(m1)) 1034 #endif 1035 1036 /*MC 1037 PetscFree7 - Frees 7 chunks of memory obtained with PetscMalloc7() 1038 1039 Synopsis: 1040 #include "petscsys.h" 1041 PetscErrorCode PetscFree7(void *m1,void *m2,void *m3,void *m4,void *m5,void *m6,void *m7) 1042 1043 Not Collective 1044 1045 Input Parameter: 1046 + m1 - memory to free 1047 . m2 - 2nd memory to free 1048 . m3 - 3rd memory to free 1049 . m4 - 4th memory to free 1050 . m5 - 5th memory to free 1051 . m6 - 6th memory to free 1052 - m7 - 7th memory to free 1053 1054 1055 Level: developer 1056 1057 Notes: Memory must have been obtained with PetscMalloc7() 1058 1059 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4(), PetscMalloc5(), PetscMalloc6(), 1060 PetscMalloc7() 1061 1062 Concepts: memory allocation 1063 1064 M*/ 1065 #if defined(PETSC_USE_DEBUG) 1066 #define PetscFree7(m1,m2,m3,m4,m5,m6,m7) (PetscFree(m7) || PetscFree(m6) || PetscFree(m5) || PetscFree(m4) || PetscFree(m3) || PetscFree(m2) || PetscFree(m1)) 1067 #else 1068 #define PetscFree7(m1,m2,m3,m4,m5,m6,m7) ((m7)=0,(m6)=0,(m5)=0,(m4)=0,(m3)=0,(m2)=0,PetscFree(m1)) 1069 #endif 1070 1071 PETSC_EXTERN PetscErrorCode (*PetscTrMalloc)(size_t,int,const char[],const char[],const char[],void**); 1072 PETSC_EXTERN PetscErrorCode (*PetscTrFree)(void*,int,const char[],const char[],const char[]); 1073 PETSC_EXTERN PetscErrorCode PetscMallocSet(PetscErrorCode (*)(size_t,int,const char[],const char[],const char[],void**),PetscErrorCode (*)(void*,int,const char[],const char[],const char[])); 1074 PETSC_EXTERN PetscErrorCode PetscMallocClear(void); 1075 1076 /* 1077 PetscLogDouble variables are used to contain double precision numbers 1078 that are not used in the numerical computations, but rather in logging, 1079 timing etc. 1080 */ 1081 typedef double PetscLogDouble; 1082 #define MPIU_PETSCLOGDOUBLE MPI_DOUBLE 1083 1084 /* 1085 Routines for tracing memory corruption/bleeding with default PETSc memory allocation 1086 */ 1087 PETSC_EXTERN PetscErrorCode PetscMallocDump(FILE *); 1088 PETSC_EXTERN PetscErrorCode PetscMallocDumpLog(FILE *); 1089 PETSC_EXTERN PetscErrorCode PetscMallocGetCurrentUsage(PetscLogDouble *); 1090 PETSC_EXTERN PetscErrorCode PetscMallocGetMaximumUsage(PetscLogDouble *); 1091 PETSC_EXTERN PetscErrorCode PetscMallocDebug(PetscBool); 1092 PETSC_EXTERN PetscErrorCode PetscMallocGetDebug(PetscBool*); 1093 PETSC_EXTERN PetscErrorCode PetscMallocValidate(int,const char[],const char[],const char[]); 1094 PETSC_EXTERN PetscErrorCode PetscMallocSetDumpLog(void); 1095 PETSC_EXTERN PetscErrorCode PetscMallocSetDumpLogThreshold(PetscLogDouble); 1096 PETSC_EXTERN PetscErrorCode PetscMallocGetDumpLog(PetscBool*); 1097 1098 /*E 1099 PetscDataType - Used for handling different basic data types. 1100 1101 Level: beginner 1102 1103 Developer comment: It would be nice if we could always just use MPI Datatypes, why can we not? 1104 1105 .seealso: PetscBinaryRead(), PetscBinaryWrite(), PetscDataTypeToMPIDataType(), 1106 PetscDataTypeGetSize() 1107 1108 E*/ 1109 typedef enum {PETSC_INT = 0,PETSC_DOUBLE = 1,PETSC_COMPLEX = 2, PETSC_LONG = 3 ,PETSC_SHORT = 4,PETSC_FLOAT = 5, 1110 PETSC_CHAR = 6,PETSC_BIT_LOGICAL = 7,PETSC_ENUM = 8,PETSC_BOOL=9, PETSC___FLOAT128 = 10,PETSC_OBJECT = 11, PETSC_FUNCTION = 12} PetscDataType; 1111 PETSC_EXTERN const char *const PetscDataTypes[]; 1112 1113 #if defined(PETSC_USE_COMPLEX) 1114 #define PETSC_SCALAR PETSC_COMPLEX 1115 #else 1116 #if defined(PETSC_USE_REAL_SINGLE) 1117 #define PETSC_SCALAR PETSC_FLOAT 1118 #elif defined(PETSC_USE_REAL___FLOAT128) 1119 #define PETSC_SCALAR PETSC___FLOAT128 1120 #else 1121 #define PETSC_SCALAR PETSC_DOUBLE 1122 #endif 1123 #endif 1124 #if defined(PETSC_USE_REAL_SINGLE) 1125 #define PETSC_REAL PETSC_FLOAT 1126 #elif defined(PETSC_USE_REAL___FLOAT128) 1127 #define PETSC_REAL PETSC___FLOAT128 1128 #else 1129 #define PETSC_REAL PETSC_DOUBLE 1130 #endif 1131 #define PETSC_FORTRANADDR PETSC_LONG 1132 1133 PETSC_EXTERN PetscErrorCode PetscDataTypeToMPIDataType(PetscDataType,MPI_Datatype*); 1134 PETSC_EXTERN PetscErrorCode PetscMPIDataTypeToPetscDataType(MPI_Datatype,PetscDataType*); 1135 PETSC_EXTERN PetscErrorCode PetscDataTypeGetSize(PetscDataType,size_t*); 1136 PETSC_EXTERN PetscErrorCode PetscDataTypeFromString(const char*,PetscDataType*,PetscBool*); 1137 1138 /* 1139 Basic memory and string operations. These are usually simple wrappers 1140 around the basic Unix system calls, but a few of them have additional 1141 functionality and/or error checking. 1142 */ 1143 PETSC_EXTERN PetscErrorCode PetscBitMemcpy(void*,PetscInt,const void*,PetscInt,PetscInt,PetscDataType); 1144 PETSC_EXTERN PetscErrorCode PetscMemmove(void*,void *,size_t); 1145 PETSC_EXTERN PetscErrorCode PetscMemcmp(const void*,const void*,size_t,PetscBool *); 1146 PETSC_EXTERN PetscErrorCode PetscStrlen(const char[],size_t*); 1147 PETSC_EXTERN PetscErrorCode PetscStrToArray(const char[],char,int*,char ***); 1148 PETSC_EXTERN PetscErrorCode PetscStrToArrayDestroy(int,char **); 1149 PETSC_EXTERN PetscErrorCode PetscStrcmp(const char[],const char[],PetscBool *); 1150 PETSC_EXTERN PetscErrorCode PetscStrgrt(const char[],const char[],PetscBool *); 1151 PETSC_EXTERN PetscErrorCode PetscStrcasecmp(const char[],const char[],PetscBool *); 1152 PETSC_EXTERN PetscErrorCode PetscStrncmp(const char[],const char[],size_t,PetscBool *); 1153 PETSC_EXTERN PetscErrorCode PetscStrcpy(char[],const char[]); 1154 PETSC_EXTERN PetscErrorCode PetscStrcat(char[],const char[]); 1155 PETSC_EXTERN PetscErrorCode PetscStrncat(char[],const char[],size_t); 1156 PETSC_EXTERN PetscErrorCode PetscStrncpy(char[],const char[],size_t); 1157 PETSC_EXTERN PetscErrorCode PetscStrchr(const char[],char,char *[]); 1158 PETSC_EXTERN PetscErrorCode PetscStrtolower(char[]); 1159 PETSC_EXTERN PetscErrorCode PetscStrtoupper(char[]); 1160 PETSC_EXTERN PetscErrorCode PetscStrrchr(const char[],char,char *[]); 1161 PETSC_EXTERN PetscErrorCode PetscStrstr(const char[],const char[],char *[]); 1162 PETSC_EXTERN PetscErrorCode PetscStrrstr(const char[],const char[],char *[]); 1163 PETSC_EXTERN PetscErrorCode PetscStrendswith(const char[],const char[],PetscBool*); 1164 PETSC_EXTERN PetscErrorCode PetscStrbeginswith(const char[],const char[],PetscBool*); 1165 PETSC_EXTERN PetscErrorCode PetscStrendswithwhich(const char[],const char *const*,PetscInt*); 1166 PETSC_EXTERN PetscErrorCode PetscStrallocpy(const char[],char *[]); 1167 PETSC_EXTERN PetscErrorCode PetscStrArrayallocpy(const char *const*,char***); 1168 PETSC_EXTERN PetscErrorCode PetscStrArrayDestroy(char***); 1169 PETSC_EXTERN PetscErrorCode PetscStrreplace(MPI_Comm,const char[],char[],size_t); 1170 1171 PETSC_EXTERN void PetscStrcmpNoError(const char[],const char[],PetscBool *); 1172 1173 /*S 1174 PetscToken - 'Token' used for managing tokenizing strings 1175 1176 Level: intermediate 1177 1178 .seealso: PetscTokenCreate(), PetscTokenFind(), PetscTokenDestroy() 1179 S*/ 1180 typedef struct _p_PetscToken* PetscToken; 1181 1182 PETSC_EXTERN PetscErrorCode PetscTokenCreate(const char[],const char,PetscToken*); 1183 PETSC_EXTERN PetscErrorCode PetscTokenFind(PetscToken,char *[]); 1184 PETSC_EXTERN PetscErrorCode PetscTokenDestroy(PetscToken*); 1185 1186 PETSC_EXTERN PetscErrorCode PetscEListFind(PetscInt,const char *const*,const char*,PetscInt*,PetscBool*); 1187 PETSC_EXTERN PetscErrorCode PetscEnumFind(const char *const*,const char*,PetscEnum*,PetscBool*); 1188 1189 /* 1190 These are MPI operations for MPI_Allreduce() etc 1191 */ 1192 PETSC_EXTERN MPI_Op PetscMaxSum_Op; 1193 #if (defined(PETSC_HAVE_COMPLEX) && !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX)) || defined(PETSC_USE_REAL___FLOAT128) 1194 PETSC_EXTERN MPI_Op MPIU_SUM; 1195 #else 1196 #define MPIU_SUM MPI_SUM 1197 #endif 1198 #if defined(PETSC_USE_REAL___FLOAT128) 1199 PETSC_EXTERN MPI_Op MPIU_MAX; 1200 PETSC_EXTERN MPI_Op MPIU_MIN; 1201 #else 1202 #define MPIU_MAX MPI_MAX 1203 #define MPIU_MIN MPI_MIN 1204 #endif 1205 PETSC_EXTERN PetscErrorCode PetscMaxSum(MPI_Comm,const PetscInt[],PetscInt*,PetscInt*); 1206 1207 PETSC_EXTERN PetscErrorCode MPIULong_Send(void*,PetscInt,MPI_Datatype,PetscMPIInt,PetscMPIInt,MPI_Comm); 1208 PETSC_EXTERN PetscErrorCode MPIULong_Recv(void*,PetscInt,MPI_Datatype,PetscMPIInt,PetscMPIInt,MPI_Comm); 1209 1210 /*S 1211 PetscObject - any PETSc object, PetscViewer, Mat, Vec, KSP etc 1212 1213 Level: beginner 1214 1215 Note: This is the base class from which all PETSc objects are derived from. 1216 1217 .seealso: PetscObjectDestroy(), PetscObjectView(), PetscObjectGetName(), PetscObjectSetName(), PetscObjectReference(), PetscObjectDereferenc() 1218 S*/ 1219 typedef struct _p_PetscObject* PetscObject; 1220 1221 /*S 1222 PetscFunctionList - Linked list of functions, possibly stored in dynamic libraries, accessed 1223 by string name 1224 1225 Level: advanced 1226 1227 .seealso: PetscFunctionListAdd(), PetscFunctionListDestroy(), PetscOpFlist 1228 S*/ 1229 typedef struct _n_PetscFunctionList *PetscFunctionList; 1230 1231 /*E 1232 PetscFileMode - Access mode for a file. 1233 1234 Level: beginner 1235 1236 FILE_MODE_READ - open a file at its beginning for reading 1237 1238 FILE_MODE_WRITE - open a file at its beginning for writing (will create if the file does not exist) 1239 1240 FILE_MODE_APPEND - open a file at end for writing 1241 1242 FILE_MODE_UPDATE - open a file for updating, meaning for reading and writing 1243 1244 FILE_MODE_APPEND_UPDATE - open a file for updating, meaning for reading and writing, at the end 1245 1246 .seealso: PetscViewerFileSetMode() 1247 E*/ 1248 typedef enum {FILE_MODE_READ, FILE_MODE_WRITE, FILE_MODE_APPEND, FILE_MODE_UPDATE, FILE_MODE_APPEND_UPDATE} PetscFileMode; 1249 extern const char *const PetscFileModes[]; 1250 1251 /* 1252 Defines PETSc error handling. 1253 */ 1254 #include <petscerror.h> 1255 1256 #define PETSC_SMALLEST_CLASSID 1211211 1257 PETSC_EXTERN PetscClassId PETSC_LARGEST_CLASSID; 1258 PETSC_EXTERN PetscClassId PETSC_OBJECT_CLASSID; 1259 PETSC_EXTERN PetscErrorCode PetscClassIdRegister(const char[],PetscClassId *); 1260 1261 /* 1262 Routines that get memory usage information from the OS 1263 */ 1264 PETSC_EXTERN PetscErrorCode PetscMemoryGetCurrentUsage(PetscLogDouble *); 1265 PETSC_EXTERN PetscErrorCode PetscMemoryGetMaximumUsage(PetscLogDouble *); 1266 PETSC_EXTERN PetscErrorCode PetscMemorySetGetMaximumUsage(void); 1267 1268 PETSC_EXTERN PetscErrorCode PetscInfoAllow(PetscBool ,const char []); 1269 PETSC_EXTERN PetscErrorCode PetscSleep(PetscReal); 1270 1271 /* 1272 Initialization of PETSc 1273 */ 1274 PETSC_EXTERN PetscErrorCode PetscInitialize(int*,char***,const char[],const char[]); 1275 PETSC_EXTERN PetscErrorCode PetscInitializeNoPointers(int,char**,const char[],const char[]); 1276 PETSC_EXTERN PetscErrorCode PetscInitializeNoArguments(void); 1277 PETSC_EXTERN PetscErrorCode PetscInitialized(PetscBool *); 1278 PETSC_EXTERN PetscErrorCode PetscFinalized(PetscBool *); 1279 PETSC_EXTERN PetscErrorCode PetscFinalize(void); 1280 PETSC_EXTERN PetscErrorCode PetscInitializeFortran(void); 1281 PETSC_EXTERN PetscErrorCode PetscGetArgs(int*,char ***); 1282 PETSC_EXTERN PetscErrorCode PetscGetArguments(char ***); 1283 PETSC_EXTERN PetscErrorCode PetscFreeArguments(char **); 1284 1285 PETSC_EXTERN PetscErrorCode PetscEnd(void); 1286 PETSC_EXTERN PetscErrorCode PetscSysInitializePackage(void); 1287 1288 PETSC_EXTERN MPI_Comm PETSC_COMM_LOCAL_WORLD; 1289 PETSC_EXTERN PetscErrorCode PetscHMPIMerge(PetscMPIInt,PetscErrorCode (*)(void*),void*); 1290 PETSC_EXTERN PetscErrorCode PetscHMPISpawn(PetscMPIInt); 1291 PETSC_EXTERN PetscErrorCode PetscHMPIFinalize(void); 1292 PETSC_EXTERN PetscErrorCode PetscHMPIRun(MPI_Comm,PetscErrorCode (*)(MPI_Comm,void *),void*); 1293 PETSC_EXTERN PetscErrorCode PetscHMPIRunCtx(MPI_Comm,PetscErrorCode (*)(MPI_Comm,void*,void *),void*); 1294 PETSC_EXTERN PetscErrorCode PetscHMPIFree(MPI_Comm,void*); 1295 PETSC_EXTERN PetscErrorCode PetscHMPIMalloc(MPI_Comm,size_t,void**); 1296 1297 PETSC_EXTERN PetscErrorCode PetscPythonInitialize(const char[],const char[]); 1298 PETSC_EXTERN PetscErrorCode PetscPythonFinalize(void); 1299 PETSC_EXTERN PetscErrorCode PetscPythonPrintError(void); 1300 PETSC_EXTERN PetscErrorCode PetscPythonMonitorSet(PetscObject,const char[]); 1301 1302 /* 1303 These are so that in extern C code we can caste function pointers to non-extern C 1304 function pointers. Since the regular C++ code expects its function pointers to be C++ 1305 */ 1306 PETSC_EXTERN_TYPEDEF typedef void (**PetscVoidStarFunction)(void); 1307 PETSC_EXTERN_TYPEDEF typedef void (*PetscVoidFunction)(void); 1308 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*PetscErrorCodeFunction)(void); 1309 1310 /* 1311 Functions that can act on any PETSc object. 1312 */ 1313 PETSC_EXTERN PetscErrorCode PetscObjectDestroy(PetscObject*); 1314 PETSC_EXTERN PetscErrorCode PetscObjectGetComm(PetscObject,MPI_Comm *); 1315 PETSC_EXTERN PetscErrorCode PetscObjectGetClassId(PetscObject,PetscClassId *); 1316 PETSC_EXTERN PetscErrorCode PetscObjectGetClassName(PetscObject,const char *[]); 1317 PETSC_EXTERN PetscErrorCode PetscObjectSetType(PetscObject,const char []); 1318 PETSC_EXTERN PetscErrorCode PetscObjectSetPrecision(PetscObject,PetscPrecision); 1319 PETSC_EXTERN PetscErrorCode PetscObjectGetType(PetscObject,const char *[]); 1320 PETSC_EXTERN PetscErrorCode PetscObjectSetName(PetscObject,const char[]); 1321 PETSC_EXTERN PetscErrorCode PetscObjectGetName(PetscObject,const char*[]); 1322 PETSC_EXTERN PetscErrorCode PetscObjectSetTabLevel(PetscObject,PetscInt); 1323 PETSC_EXTERN PetscErrorCode PetscObjectGetTabLevel(PetscObject,PetscInt*); 1324 PETSC_EXTERN PetscErrorCode PetscObjectIncrementTabLevel(PetscObject,PetscObject,PetscInt); 1325 PETSC_EXTERN PetscErrorCode PetscObjectReference(PetscObject); 1326 PETSC_EXTERN PetscErrorCode PetscObjectGetReference(PetscObject,PetscInt*); 1327 PETSC_EXTERN PetscErrorCode PetscObjectDereference(PetscObject); 1328 PETSC_EXTERN PetscErrorCode PetscObjectGetNewTag(PetscObject,PetscMPIInt *); 1329 PETSC_EXTERN PetscErrorCode PetscObjectCompose(PetscObject,const char[],PetscObject); 1330 PETSC_EXTERN PetscErrorCode PetscObjectRemoveReference(PetscObject,const char[]); 1331 PETSC_EXTERN PetscErrorCode PetscObjectQuery(PetscObject,const char[],PetscObject *); 1332 PETSC_EXTERN PetscErrorCode PetscObjectComposeFunction_Private(PetscObject,const char[],void (*)(void)); 1333 #define PetscObjectComposeFunction(a,b,d) PetscObjectComposeFunction_Private(a,b,(PetscVoidFunction)(d)) 1334 PETSC_EXTERN PetscErrorCode PetscObjectSetFromOptions(PetscObject); 1335 PETSC_EXTERN PetscErrorCode PetscObjectSetUp(PetscObject); 1336 PETSC_EXTERN PetscErrorCode PetscCommGetNewTag(MPI_Comm,PetscMPIInt *); 1337 PETSC_EXTERN PetscErrorCode PetscObjectAddOptionsHandler(PetscObject,PetscErrorCode (*)(PetscObject,void*),PetscErrorCode (*)(PetscObject,void*),void*); 1338 PETSC_EXTERN PetscErrorCode PetscObjectProcessOptionsHandlers(PetscObject); 1339 PETSC_EXTERN PetscErrorCode PetscObjectDestroyOptionsHandlers(PetscObject); 1340 PETSC_EXTERN PetscErrorCode PetscObjectsGetGlobalNumbering(MPI_Comm,PetscInt,PetscObject*,PetscInt*,PetscInt*); 1341 1342 #include <petscviewertypes.h> 1343 #include <petscoptions.h> 1344 1345 PETSC_EXTERN PetscErrorCode PetscMemoryShowUsage(PetscViewer,const char[]); 1346 PETSC_EXTERN PetscErrorCode PetscObjectPrintClassNamePrefixType(PetscObject,PetscViewer,const char[]); 1347 PETSC_EXTERN PetscErrorCode PetscObjectView(PetscObject,PetscViewer); 1348 #define PetscObjectQueryFunction(obj,name,fptr) PetscObjectQueryFunction_Private((obj),(name),(PetscVoidFunction*)(fptr)) 1349 PETSC_EXTERN PetscErrorCode PetscObjectQueryFunction_Private(PetscObject,const char[],void (**)(void)); 1350 PETSC_EXTERN PetscErrorCode PetscObjectSetOptionsPrefix(PetscObject,const char[]); 1351 PETSC_EXTERN PetscErrorCode PetscObjectAppendOptionsPrefix(PetscObject,const char[]); 1352 PETSC_EXTERN PetscErrorCode PetscObjectPrependOptionsPrefix(PetscObject,const char[]); 1353 PETSC_EXTERN PetscErrorCode PetscObjectGetOptionsPrefix(PetscObject,const char*[]); 1354 PETSC_EXTERN PetscErrorCode PetscObjectChangeTypeName(PetscObject,const char[]); 1355 PETSC_EXTERN PetscErrorCode PetscObjectRegisterDestroy(PetscObject); 1356 PETSC_EXTERN PetscErrorCode PetscObjectRegisterDestroyAll(void); 1357 PETSC_EXTERN PetscErrorCode PetscObjectName(PetscObject); 1358 PETSC_EXTERN PetscErrorCode PetscObjectTypeCompare(PetscObject,const char[],PetscBool *); 1359 PETSC_EXTERN PetscErrorCode PetscObjectTypeCompareAny(PetscObject,PetscBool*,const char[],...); 1360 PETSC_EXTERN PetscErrorCode PetscRegisterFinalize(PetscErrorCode (*)(void)); 1361 PETSC_EXTERN PetscErrorCode PetscRegisterFinalizeAll(void); 1362 1363 #if defined(PETSC_HAVE_AMS) 1364 PETSC_EXTERN PetscErrorCode PetscObjectAMSViewOff(PetscObject); 1365 PETSC_EXTERN PetscErrorCode PetscObjectAMSSetBlock(PetscObject,PetscBool); 1366 PETSC_EXTERN PetscErrorCode PetscObjectAMSBlock(PetscObject); 1367 PETSC_EXTERN PetscErrorCode PetscObjectAMSGrantAccess(PetscObject); 1368 PETSC_EXTERN PetscErrorCode PetscObjectAMSTakeAccess(PetscObject); 1369 PETSC_EXTERN void PetscStackAMSGrantAccess(void); 1370 PETSC_EXTERN void PetscStackAMSTakeAccess(void); 1371 PETSC_EXTERN PetscErrorCode PetscStackViewAMS(void); 1372 PETSC_EXTERN PetscErrorCode PetscStackAMSViewOff(void); 1373 1374 #else 1375 #define PetscObjectAMSViewOff(obj) 0 1376 #define PetscObjectAMSSetBlock(obj,flg) 0 1377 #define PetscObjectAMSBlock(obj) 0 1378 #define PetscObjectAMSGrantAccess(obj) 0 1379 #define PetscObjectAMSTakeAccess(obj) 0 1380 #define PetscStackViewAMS() 0 1381 #define PetscStackAMSViewOff() 0 1382 #define PetscStackAMSTakeAccess() 1383 #define PetscStackAMSGrantAccess() 1384 1385 #endif 1386 1387 typedef void* PetscDLHandle; 1388 typedef enum {PETSC_DL_DECIDE=0,PETSC_DL_NOW=1,PETSC_DL_LOCAL=2} PetscDLMode; 1389 PETSC_EXTERN PetscErrorCode PetscDLOpen(const char[],PetscDLMode,PetscDLHandle *); 1390 PETSC_EXTERN PetscErrorCode PetscDLClose(PetscDLHandle *); 1391 PETSC_EXTERN PetscErrorCode PetscDLSym(PetscDLHandle,const char[],void **); 1392 1393 1394 #if defined(PETSC_USE_DEBUG) 1395 PETSC_EXTERN PetscErrorCode PetscMallocGetStack(void*,PetscStack**); 1396 #endif 1397 PETSC_EXTERN PetscErrorCode PetscObjectsDump(FILE*,PetscBool); 1398 1399 /*S 1400 PetscObjectList - Linked list of PETSc objects, each accessable by string name 1401 1402 Level: developer 1403 1404 Notes: Used by PetscObjectCompose() and PetscObjectQuery() 1405 1406 .seealso: PetscObjectListAdd(), PetscObjectListDestroy(), PetscObjectListFind(), PetscObjectCompose(), PetscObjectQuery(), PetscFunctionList 1407 S*/ 1408 typedef struct _n_PetscObjectList *PetscObjectList; 1409 1410 PETSC_EXTERN PetscErrorCode PetscObjectListDestroy(PetscObjectList*); 1411 PETSC_EXTERN PetscErrorCode PetscObjectListFind(PetscObjectList,const char[],PetscObject*); 1412 PETSC_EXTERN PetscErrorCode PetscObjectListReverseFind(PetscObjectList,PetscObject,char**,PetscBool*); 1413 PETSC_EXTERN PetscErrorCode PetscObjectListAdd(PetscObjectList *,const char[],PetscObject); 1414 PETSC_EXTERN PetscErrorCode PetscObjectListRemoveReference(PetscObjectList *,const char[]); 1415 PETSC_EXTERN PetscErrorCode PetscObjectListDuplicate(PetscObjectList,PetscObjectList *); 1416 1417 /* 1418 Dynamic library lists. Lists of names of routines in objects or in dynamic 1419 link libraries that will be loaded as needed. 1420 */ 1421 1422 #define PetscFunctionListAdd(list,name,fptr) PetscFunctionListAdd_Private((list),(name),(PetscVoidFunction)(fptr)) 1423 PETSC_EXTERN PetscErrorCode PetscFunctionListAdd_Private(PetscFunctionList*,const char[],void (*)(void)); 1424 PETSC_EXTERN PetscErrorCode PetscFunctionListDestroy(PetscFunctionList*); 1425 #define PetscFunctionListFind(list,name,fptr) PetscFunctionListFind_Private((list),(name),(PetscVoidFunction*)(fptr)) 1426 PETSC_EXTERN PetscErrorCode PetscFunctionListFind_Private(PetscFunctionList,const char[],void (**)(void)); 1427 PETSC_EXTERN PetscErrorCode PetscFunctionListPrintTypes(MPI_Comm,FILE*,const char[],const char[],const char[],const char[],PetscFunctionList,const char[]); 1428 PETSC_EXTERN PetscErrorCode PetscFunctionListDuplicate(PetscFunctionList,PetscFunctionList *); 1429 PETSC_EXTERN PetscErrorCode PetscFunctionListView(PetscFunctionList,PetscViewer); 1430 PETSC_EXTERN PetscErrorCode PetscFunctionListGet(PetscFunctionList,const char ***,int*); 1431 1432 /*S 1433 PetscDLLibrary - Linked list of dynamics libraries to search for functions 1434 1435 Level: advanced 1436 1437 --with-shared-libraries --with-dynamic-loading must be used with ./configure to use dynamic libraries 1438 1439 .seealso: PetscDLLibraryOpen() 1440 S*/ 1441 typedef struct _n_PetscDLLibrary *PetscDLLibrary; 1442 PETSC_EXTERN PetscDLLibrary PetscDLLibrariesLoaded; 1443 PETSC_EXTERN PetscErrorCode PetscDLLibraryAppend(MPI_Comm,PetscDLLibrary *,const char[]); 1444 PETSC_EXTERN PetscErrorCode PetscDLLibraryPrepend(MPI_Comm,PetscDLLibrary *,const char[]); 1445 PETSC_EXTERN PetscErrorCode PetscDLLibrarySym(MPI_Comm,PetscDLLibrary *,const char[],const char[],void **); 1446 PETSC_EXTERN PetscErrorCode PetscDLLibraryPrintPath(PetscDLLibrary); 1447 PETSC_EXTERN PetscErrorCode PetscDLLibraryRetrieve(MPI_Comm,const char[],char *,size_t,PetscBool *); 1448 PETSC_EXTERN PetscErrorCode PetscDLLibraryOpen(MPI_Comm,const char[],PetscDLLibrary *); 1449 PETSC_EXTERN PetscErrorCode PetscDLLibraryClose(PetscDLLibrary); 1450 1451 /* 1452 Useful utility routines 1453 */ 1454 PETSC_EXTERN PetscErrorCode PetscSplitOwnership(MPI_Comm,PetscInt*,PetscInt*); 1455 PETSC_EXTERN PetscErrorCode PetscSplitOwnershipBlock(MPI_Comm,PetscInt,PetscInt*,PetscInt*); 1456 PETSC_EXTERN PetscErrorCode PetscSequentialPhaseBegin(MPI_Comm,PetscMPIInt); 1457 PETSC_EXTERN PetscErrorCode PetscSequentialPhaseEnd(MPI_Comm,PetscMPIInt); 1458 PETSC_EXTERN PetscErrorCode PetscBarrier(PetscObject); 1459 PETSC_EXTERN PetscErrorCode PetscMPIDump(FILE*); 1460 1461 /* 1462 PetscNot - negates a logical type value and returns result as a PetscBool 1463 1464 Notes: This is useful in cases like 1465 $ int *a; 1466 $ PetscBool flag = PetscNot(a) 1467 where !a does not return a PetscBool because we cannot provide a cast from int to PetscBool in C. 1468 */ 1469 #define PetscNot(a) ((a) ? PETSC_FALSE : PETSC_TRUE) 1470 1471 #if defined(PETSC_HAVE_VALGRIND) 1472 # include <valgrind/valgrind.h> 1473 # define PETSC_RUNNING_ON_VALGRIND RUNNING_ON_VALGRIND 1474 #else 1475 # define PETSC_RUNNING_ON_VALGRIND PETSC_FALSE 1476 #endif 1477 1478 1479 /*MC 1480 PetscHelpPrintf - Prints help messages. 1481 1482 Synopsis: 1483 #include "petscsys.h" 1484 PetscErrorCode (*PetscHelpPrintf)(const char format[],...); 1485 1486 Not Collective 1487 1488 Input Parameters: 1489 . format - the usual printf() format string 1490 1491 Level: developer 1492 1493 Fortran Note: 1494 This routine is not supported in Fortran. 1495 1496 Concepts: help messages^printing 1497 Concepts: printing^help messages 1498 1499 .seealso: PetscFPrintf(), PetscSynchronizedPrintf(), PetscErrorPrintf() 1500 M*/ 1501 PETSC_EXTERN PetscErrorCode (*PetscHelpPrintf)(MPI_Comm,const char[],...); 1502 1503 /* 1504 Defines PETSc profiling. 1505 */ 1506 #include <petsclog.h> 1507 1508 1509 1510 /* 1511 Simple PETSc parallel IO for ASCII printing 1512 */ 1513 PETSC_EXTERN PetscErrorCode PetscFixFilename(const char[],char[]); 1514 PETSC_EXTERN PetscErrorCode PetscFOpen(MPI_Comm,const char[],const char[],FILE**); 1515 PETSC_EXTERN PetscErrorCode PetscFClose(MPI_Comm,FILE*); 1516 PETSC_EXTERN PetscErrorCode PetscFPrintf(MPI_Comm,FILE*,const char[],...); 1517 PETSC_EXTERN PetscErrorCode PetscPrintf(MPI_Comm,const char[],...); 1518 PETSC_EXTERN PetscErrorCode PetscSNPrintf(char*,size_t,const char [],...); 1519 PETSC_EXTERN PetscErrorCode PetscSNPrintfCount(char*,size_t,const char [],size_t*,...); 1520 1521 /* These are used internally by PETSc ASCII IO routines*/ 1522 #include <stdarg.h> 1523 PETSC_EXTERN PetscErrorCode PetscVSNPrintf(char*,size_t,const char[],size_t*,va_list); 1524 PETSC_EXTERN PetscErrorCode (*PetscVFPrintf)(FILE*,const char[],va_list); 1525 PETSC_EXTERN PetscErrorCode PetscVFPrintfDefault(FILE*,const char[],va_list); 1526 1527 #if defined(PETSC_HAVE_MATLAB_ENGINE) 1528 PETSC_EXTERN PetscErrorCode PetscVFPrintf_Matlab(FILE*,const char[],va_list); 1529 #endif 1530 1531 PETSC_EXTERN PetscErrorCode PetscErrorPrintfDefault(const char [],...); 1532 PETSC_EXTERN PetscErrorCode PetscErrorPrintfNone(const char [],...); 1533 PETSC_EXTERN PetscErrorCode PetscHelpPrintfDefault(MPI_Comm,const char [],...); 1534 1535 #if defined(PETSC_HAVE_POPEN) 1536 PETSC_EXTERN PetscErrorCode PetscPOpen(MPI_Comm,const char[],const char[],const char[],FILE **); 1537 PETSC_EXTERN PetscErrorCode PetscPClose(MPI_Comm,FILE*,PetscInt*); 1538 #endif 1539 1540 PETSC_EXTERN PetscErrorCode PetscSynchronizedPrintf(MPI_Comm,const char[],...); 1541 PETSC_EXTERN PetscErrorCode PetscSynchronizedFPrintf(MPI_Comm,FILE*,const char[],...); 1542 PETSC_EXTERN PetscErrorCode PetscSynchronizedFlush(MPI_Comm); 1543 PETSC_EXTERN PetscErrorCode PetscSynchronizedFGets(MPI_Comm,FILE*,size_t,char[]); 1544 PETSC_EXTERN PetscErrorCode PetscStartMatlab(MPI_Comm,const char[],const char[],FILE**); 1545 PETSC_EXTERN PetscErrorCode PetscStartJava(MPI_Comm,const char[],const char[],FILE**); 1546 PETSC_EXTERN PetscErrorCode PetscGetPetscDir(const char*[]); 1547 1548 PETSC_EXTERN PetscErrorCode PetscPopUpSelect(MPI_Comm,const char*,const char*,int,const char**,int*); 1549 1550 /*S 1551 PetscContainer - Simple PETSc object that contains a pointer to any required data 1552 1553 Level: advanced 1554 1555 .seealso: PetscObject, PetscContainerCreate() 1556 S*/ 1557 PETSC_EXTERN PetscClassId PETSC_CONTAINER_CLASSID; 1558 typedef struct _p_PetscContainer* PetscContainer; 1559 PETSC_EXTERN PetscErrorCode PetscContainerGetPointer(PetscContainer,void **); 1560 PETSC_EXTERN PetscErrorCode PetscContainerSetPointer(PetscContainer,void *); 1561 PETSC_EXTERN PetscErrorCode PetscContainerDestroy(PetscContainer*); 1562 PETSC_EXTERN PetscErrorCode PetscContainerCreate(MPI_Comm,PetscContainer *); 1563 PETSC_EXTERN PetscErrorCode PetscContainerSetUserDestroy(PetscContainer, PetscErrorCode (*)(void*)); 1564 1565 /* 1566 For use in debuggers 1567 */ 1568 PETSC_EXTERN PetscMPIInt PetscGlobalRank; 1569 PETSC_EXTERN PetscMPIInt PetscGlobalSize; 1570 PETSC_EXTERN PetscErrorCode PetscIntView(PetscInt,const PetscInt[],PetscViewer); 1571 PETSC_EXTERN PetscErrorCode PetscRealView(PetscInt,const PetscReal[],PetscViewer); 1572 PETSC_EXTERN PetscErrorCode PetscScalarView(PetscInt,const PetscScalar[],PetscViewer); 1573 1574 #include <stddef.h> 1575 #if defined(PETSC_HAVE_MEMORY_H) 1576 #include <memory.h> 1577 #endif 1578 #if defined(PETSC_HAVE_STDLIB_H) 1579 #include <stdlib.h> 1580 #endif 1581 1582 #if defined(PETSC_HAVE_XMMINTRIN_H) && !defined(__CUDACC__) 1583 #include <xmmintrin.h> 1584 #endif 1585 #if defined(PETSC_HAVE_STDINT_H) 1586 #include <stdint.h> 1587 #endif 1588 1589 #undef __FUNCT__ 1590 #define __FUNCT__ "PetscMemcpy" 1591 /*@C 1592 PetscMemcpy - Copies n bytes, beginning at location b, to the space 1593 beginning at location a. The two memory regions CANNOT overlap, use 1594 PetscMemmove() in that case. 1595 1596 Not Collective 1597 1598 Input Parameters: 1599 + b - pointer to initial memory space 1600 - n - length (in bytes) of space to copy 1601 1602 Output Parameter: 1603 . a - pointer to copy space 1604 1605 Level: intermediate 1606 1607 Compile Option: 1608 PETSC_PREFER_DCOPY_FOR_MEMCPY will cause the BLAS dcopy() routine to be used 1609 for memory copies on double precision values. 1610 PETSC_PREFER_COPY_FOR_MEMCPY will cause C code to be used 1611 for memory copies on double precision values. 1612 PETSC_PREFER_FORTRAN_FORMEMCPY will cause Fortran code to be used 1613 for memory copies on double precision values. 1614 1615 Note: 1616 This routine is analogous to memcpy(). 1617 1618 Developer Note: this is inlined for fastest performance 1619 1620 Concepts: memory^copying 1621 Concepts: copying^memory 1622 1623 .seealso: PetscMemmove() 1624 1625 @*/ 1626 PETSC_STATIC_INLINE PetscErrorCode PetscMemcpy(void *a,const void *b,size_t n) 1627 { 1628 #if defined(PETSC_USE_DEBUG) 1629 unsigned long al = (unsigned long) a,bl = (unsigned long) b; 1630 unsigned long nl = (unsigned long) n; 1631 PetscFunctionBegin; 1632 if (n > 0 && !b) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to copy from a null pointer"); 1633 if (n > 0 && !a) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to copy to a null pointer"); 1634 #else 1635 PetscFunctionBegin; 1636 #endif 1637 if (a != b) { 1638 #if defined(PETSC_USE_DEBUG) 1639 if ((al > bl && (al - bl) < nl) || (bl - al) < nl) SETERRQ3(PETSC_COMM_SELF,PETSC_ERR_ARG_INCOMP,"Memory regions overlap: either use PetscMemmov()\n\ 1640 or make sure your copy regions and lengths are correct. \n\ 1641 Length (bytes) %ld first address %ld second address %ld",nl,al,bl); 1642 #endif 1643 #if (defined(PETSC_PREFER_DCOPY_FOR_MEMCPY) || defined(PETSC_PREFER_COPY_FOR_MEMCPY) || defined(PETSC_PREFER_FORTRAN_FORMEMCPY)) 1644 if (!(((long) a) % sizeof(PetscScalar)) && !(n % sizeof(PetscScalar))) { 1645 size_t len = n/sizeof(PetscScalar); 1646 #if defined(PETSC_PREFER_DCOPY_FOR_MEMCPY) 1647 PetscBLASInt one = 1,blen; 1648 PetscErrorCode ierr; 1649 ierr = PetscBLASIntCast(len,&blen);CHKERRQ(ierr); 1650 PetscStackCallBLAS("BLAScopy",BLAScopy_(&blen,(PetscScalar *)b,&one,(PetscScalar *)a,&one)); 1651 #elif defined(PETSC_PREFER_FORTRAN_FORMEMCPY) 1652 fortrancopy_(&len,(PetscScalar*)b,(PetscScalar*)a); 1653 #else 1654 size_t i; 1655 PetscScalar *x = (PetscScalar*)b, *y = (PetscScalar*)a; 1656 for (i=0; i<len; i++) y[i] = x[i]; 1657 #endif 1658 } else { 1659 memcpy((char*)(a),(char*)(b),n); 1660 } 1661 #else 1662 memcpy((char*)(a),(char*)(b),n); 1663 #endif 1664 } 1665 PetscFunctionReturn(0); 1666 } 1667 1668 /*@C 1669 PetscMemzero - Zeros the specified memory. 1670 1671 Not Collective 1672 1673 Input Parameters: 1674 + a - pointer to beginning memory location 1675 - n - length (in bytes) of memory to initialize 1676 1677 Level: intermediate 1678 1679 Compile Option: 1680 PETSC_PREFER_BZERO - on certain machines (the IBM RS6000) the bzero() routine happens 1681 to be faster than the memset() routine. This flag causes the bzero() routine to be used. 1682 1683 Developer Note: this is inlined for fastest performance 1684 1685 Concepts: memory^zeroing 1686 Concepts: zeroing^memory 1687 1688 .seealso: PetscMemcpy() 1689 @*/ 1690 PETSC_STATIC_INLINE PetscErrorCode PetscMemzero(void *a,size_t n) 1691 { 1692 if (n > 0) { 1693 #if defined(PETSC_USE_DEBUG) 1694 if (!a) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to zero at a null pointer"); 1695 #endif 1696 #if defined(PETSC_PREFER_ZERO_FOR_MEMZERO) 1697 if (!(((long) a) % sizeof(PetscScalar)) && !(n % sizeof(PetscScalar))) { 1698 size_t i,len = n/sizeof(PetscScalar); 1699 PetscScalar *x = (PetscScalar*)a; 1700 for (i=0; i<len; i++) x[i] = 0.0; 1701 } else { 1702 #elif defined(PETSC_PREFER_FORTRAN_FOR_MEMZERO) 1703 if (!(((long) a) % sizeof(PetscScalar)) && !(n % sizeof(PetscScalar))) { 1704 PetscInt len = n/sizeof(PetscScalar); 1705 fortranzero_(&len,(PetscScalar*)a); 1706 } else { 1707 #endif 1708 #if defined(PETSC_PREFER_BZERO) 1709 bzero((char *)a,n); 1710 #else 1711 memset((char*)a,0,n); 1712 #endif 1713 #if defined(PETSC_PREFER_ZERO_FOR_MEMZERO) || defined(PETSC_PREFER_FORTRAN_FOR_MEMZERO) 1714 } 1715 #endif 1716 } 1717 return 0; 1718 } 1719 1720 /*MC 1721 PetscPrefetchBlock - Prefetches a block of memory 1722 1723 Synopsis: 1724 #include "petscsys.h" 1725 void PetscPrefetchBlock(const anytype *a,size_t n,int rw,int t) 1726 1727 Not Collective 1728 1729 Input Parameters: 1730 + a - pointer to first element to fetch (any type but usually PetscInt or PetscScalar) 1731 . n - number of elements to fetch 1732 . rw - 1 if the memory will be written to, otherwise 0 (ignored by many processors) 1733 - t - temporal locality (PETSC_PREFETCH_HINT_{NTA,T0,T1,T2}), see note 1734 1735 Level: developer 1736 1737 Notes: 1738 The last two arguments (rw and t) must be compile-time constants. 1739 1740 Adopting Intel's x86/x86-64 conventions, there are four levels of temporal locality. Not all architectures offer 1741 equivalent locality hints, but the following macros are always defined to their closest analogue. 1742 + PETSC_PREFETCH_HINT_NTA - Non-temporal. Prefetches directly to L1, evicts to memory (skips higher level cache unless it was already there when prefetched). 1743 . 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. 1744 . PETSC_PREFETCH_HINT_T1 - Fetch to level 2 and higher (not L1). 1745 - PETSC_PREFETCH_HINT_T2 - Fetch to high-level cache only. (On many systems, T0 and T1 are equivalent.) 1746 1747 This function does nothing on architectures that do not support prefetch and never errors (even if passed an invalid 1748 address). 1749 1750 Concepts: memory 1751 M*/ 1752 #define PetscPrefetchBlock(a,n,rw,t) do { \ 1753 const char *_p = (const char*)(a),*_end = (const char*)((a)+(n)); \ 1754 for ( ; _p < _end; _p += PETSC_LEVEL1_DCACHE_LINESIZE) PETSC_Prefetch(_p,(rw),(t)); \ 1755 } while (0) 1756 1757 /* 1758 Determine if some of the kernel computation routines use 1759 Fortran (rather than C) for the numerical calculations. On some machines 1760 and compilers (like complex numbers) the Fortran version of the routines 1761 is faster than the C/C++ versions. The flag --with-fortran-kernels 1762 should be used with ./configure to turn these on. 1763 */ 1764 #if defined(PETSC_USE_FORTRAN_KERNELS) 1765 1766 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTCRL) 1767 #define PETSC_USE_FORTRAN_KERNEL_MULTCRL 1768 #endif 1769 1770 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTAIJPERM) 1771 #define PETSC_USE_FORTRAN_KERNEL_MULTAIJPERM 1772 #endif 1773 1774 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTAIJ) 1775 #define PETSC_USE_FORTRAN_KERNEL_MULTAIJ 1776 #endif 1777 1778 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTTRANSPOSEAIJ) 1779 #define PETSC_USE_FORTRAN_KERNEL_MULTTRANSPOSEAIJ 1780 #endif 1781 1782 #if !defined(PETSC_USE_FORTRAN_KERNEL_NORM) 1783 #define PETSC_USE_FORTRAN_KERNEL_NORM 1784 #endif 1785 1786 #if !defined(PETSC_USE_FORTRAN_KERNEL_MAXPY) 1787 #define PETSC_USE_FORTRAN_KERNEL_MAXPY 1788 #endif 1789 1790 #if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ) 1791 #define PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ 1792 #endif 1793 1794 #if !defined(PETSC_USE_FORTRAN_KERNEL_RELAXAIJ) 1795 #define PETSC_USE_FORTRAN_KERNEL_RELAXAIJ 1796 #endif 1797 1798 #if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ) 1799 #define PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ 1800 #endif 1801 1802 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ) 1803 #define PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ 1804 #endif 1805 1806 #if !defined(PETSC_USE_FORTRAN_KERNEL_MDOT) 1807 #define PETSC_USE_FORTRAN_KERNEL_MDOT 1808 #endif 1809 1810 #if !defined(PETSC_USE_FORTRAN_KERNEL_XTIMESY) 1811 #define PETSC_USE_FORTRAN_KERNEL_XTIMESY 1812 #endif 1813 1814 #if !defined(PETSC_USE_FORTRAN_KERNEL_AYPX) 1815 #define PETSC_USE_FORTRAN_KERNEL_AYPX 1816 #endif 1817 1818 #if !defined(PETSC_USE_FORTRAN_KERNEL_WAXPY) 1819 #define PETSC_USE_FORTRAN_KERNEL_WAXPY 1820 #endif 1821 1822 #endif 1823 1824 /* 1825 Macros for indicating code that should be compiled with a C interface, 1826 rather than a C++ interface. Any routines that are dynamically loaded 1827 (such as the PCCreate_XXX() routines) must be wrapped so that the name 1828 mangler does not change the functions symbol name. This just hides the 1829 ugly extern "C" {} wrappers. 1830 */ 1831 #if defined(__cplusplus) 1832 #define EXTERN_C_BEGIN extern "C" { 1833 #define EXTERN_C_END } 1834 #else 1835 #define EXTERN_C_BEGIN 1836 #define EXTERN_C_END 1837 #endif 1838 1839 /* --------------------------------------------------------------------*/ 1840 1841 /*MC 1842 MPI_Comm - the basic object used by MPI to determine which processes are involved in a 1843 communication 1844 1845 Level: beginner 1846 1847 Note: This manual page is a place-holder because MPICH does not have a manual page for MPI_Comm 1848 1849 .seealso: PETSC_COMM_WORLD, PETSC_COMM_SELF 1850 M*/ 1851 1852 /*MC 1853 PetscScalar - PETSc type that represents either a double precision real number, a double precision 1854 complex number, a single precision real number, a long double or an int - if the code is configured 1855 with --with-scalar-type=real,complex --with-precision=single,double,longdouble,int,matsingle 1856 1857 1858 Level: beginner 1859 1860 .seealso: PetscReal, PassiveReal, PassiveScalar, MPIU_SCALAR, PetscInt 1861 M*/ 1862 1863 /*MC 1864 PetscComplex - PETSc type that represents a complex number with precision matching that of PetscReal. 1865 1866 Synopsis: 1867 #define PETSC_DESIRE_COMPLEX 1868 #include <petscsys.h> 1869 PetscComplex number = 1. + 2.*PETSC_i; 1870 1871 Level: beginner 1872 1873 Note: 1874 Complex numbers are automatically available if PETSc was configured --with-scalar-type=complex (in which case 1875 PetscComplex will match PetscScalar), otherwise the macro PETSC_DESIRE_COMPLEX must be defined before including any 1876 PETSc headers. If the compiler supports complex numbers, PetscComplex and associated variables and functions will be 1877 defined and PETSC_HAVE_COMPLEX will be set. 1878 1879 .seealso: PetscReal, PetscComplex, MPIU_COMPLEX, PetscInt, PETSC_i 1880 M*/ 1881 1882 /*MC 1883 PetscReal - PETSc type that represents a real number version of PetscScalar 1884 1885 Level: beginner 1886 1887 .seealso: PetscScalar, PassiveReal, PassiveScalar 1888 M*/ 1889 1890 /*MC 1891 PassiveScalar - PETSc type that represents a PetscScalar 1892 Level: beginner 1893 1894 This is the same as a PetscScalar except in code that is automatically differentiated it is 1895 treated as a constant (not an indendent or dependent variable) 1896 1897 .seealso: PetscReal, PassiveReal, PetscScalar 1898 M*/ 1899 1900 /*MC 1901 PassiveReal - PETSc type that represents a PetscReal 1902 1903 Level: beginner 1904 1905 This is the same as a PetscReal except in code that is automatically differentiated it is 1906 treated as a constant (not an indendent or dependent variable) 1907 1908 .seealso: PetscScalar, PetscReal, PassiveScalar 1909 M*/ 1910 1911 /*MC 1912 MPIU_SCALAR - MPI datatype corresponding to PetscScalar 1913 1914 Level: beginner 1915 1916 Note: In MPI calls that require an MPI datatype that matches a PetscScalar or array of PetscScalars 1917 pass this value 1918 1919 .seealso: PetscReal, PassiveReal, PassiveScalar, PetscScalar, MPIU_INT 1920 M*/ 1921 1922 #if defined(PETSC_HAVE_MPIIO) 1923 #if !defined(PETSC_WORDS_BIGENDIAN) 1924 PETSC_EXTERN PetscErrorCode MPIU_File_write_all(MPI_File,void*,PetscMPIInt,MPI_Datatype,MPI_Status*); 1925 PETSC_EXTERN PetscErrorCode MPIU_File_read_all(MPI_File,void*,PetscMPIInt,MPI_Datatype,MPI_Status*); 1926 #else 1927 #define MPIU_File_write_all(a,b,c,d,e) MPI_File_write_all(a,b,c,d,e) 1928 #define MPIU_File_read_all(a,b,c,d,e) MPI_File_read_all(a,b,c,d,e) 1929 #endif 1930 #endif 1931 1932 /* the following petsc_static_inline require petscerror.h */ 1933 1934 /* Limit MPI to 32-bits */ 1935 #define PETSC_MPI_INT_MAX 2147483647 1936 #define PETSC_MPI_INT_MIN -2147483647 1937 /* Limit BLAS to 32-bits */ 1938 #define PETSC_BLAS_INT_MAX 2147483647 1939 #define PETSC_BLAS_INT_MIN -2147483647 1940 1941 #undef __FUNCT__ 1942 #define __FUNCT__ "PetscBLASIntCast" 1943 PETSC_STATIC_INLINE PetscErrorCode PetscBLASIntCast(PetscInt a,PetscBLASInt *b) 1944 { 1945 PetscFunctionBegin; 1946 #if defined(PETSC_USE_64BIT_INDICES) && !defined(PETSC_HAVE_64BIT_BLAS_INDICES) 1947 if ((a) > PETSC_BLAS_INT_MAX) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Array too long for BLAS/LAPACK"); 1948 #endif 1949 *b = (PetscBLASInt)(a); 1950 PetscFunctionReturn(0); 1951 } 1952 1953 #undef __FUNCT__ 1954 #define __FUNCT__ "PetscMPIIntCast" 1955 PETSC_STATIC_INLINE PetscErrorCode PetscMPIIntCast(PetscInt a,PetscMPIInt *b) 1956 { 1957 PetscFunctionBegin; 1958 #if defined(PETSC_USE_64BIT_INDICES) 1959 if ((a) > PETSC_MPI_INT_MAX) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Array too long for MPI"); 1960 #endif 1961 *b = (PetscMPIInt)(a); 1962 PetscFunctionReturn(0); 1963 } 1964 1965 1966 /* 1967 The IBM include files define hz, here we hide it so that it may be used as a regular user variable. 1968 */ 1969 #if defined(hz) 1970 #undef hz 1971 #endif 1972 1973 /* For arrays that contain filenames or paths */ 1974 1975 1976 #if defined(PETSC_HAVE_LIMITS_H) 1977 #include <limits.h> 1978 #endif 1979 #if defined(PETSC_HAVE_SYS_PARAM_H) 1980 #include <sys/param.h> 1981 #endif 1982 #if defined(PETSC_HAVE_SYS_TYPES_H) 1983 #include <sys/types.h> 1984 #endif 1985 #if defined(MAXPATHLEN) 1986 # define PETSC_MAX_PATH_LEN MAXPATHLEN 1987 #elif defined(MAX_PATH) 1988 # define PETSC_MAX_PATH_LEN MAX_PATH 1989 #elif defined(_MAX_PATH) 1990 # define PETSC_MAX_PATH_LEN _MAX_PATH 1991 #else 1992 # define PETSC_MAX_PATH_LEN 4096 1993 #endif 1994 1995 /* Special support for C++ */ 1996 #if defined(PETSC_CLANGUAGE_CXX) && defined(__cplusplus) 1997 #include <petscsys.hh> 1998 #endif 1999 2000 /*MC 2001 2002 UsingFortran - Fortran can be used with PETSc in four distinct approaches 2003 2004 $ 1) classic Fortran 77 style 2005 $#include "finclude/petscXXX.h" to work with material from the XXX component of PETSc 2006 $ XXX variablename 2007 $ You cannot use this approach if you wish to use the Fortran 90 specific PETSc routines 2008 $ which end in F90; such as VecGetArrayF90() 2009 $ 2010 $ 2) classic Fortran 90 style 2011 $#include "finclude/petscXXX.h" 2012 $#include "finclude/petscXXX.h90" to work with material from the XXX component of PETSc 2013 $ XXX variablename 2014 $ 2015 $ 3) Using Fortran modules 2016 $#include "finclude/petscXXXdef.h" 2017 $ use petscXXXX 2018 $ XXX variablename 2019 $ 2020 $ 4) Use Fortran modules and Fortran data types for PETSc types 2021 $#include "finclude/petscXXXdef.h" 2022 $ use petscXXXX 2023 $ type(XXX) variablename 2024 $ To use this approach you must ./configure PETSc with the additional 2025 $ option --with-fortran-datatypes You cannot use the type(XXX) declaration approach without using Fortran modules 2026 2027 Finally if you absolutely do not want to use any #include you can use either 2028 2029 $ 3a) skip the #include BUT you cannot use any PETSc data type names like Vec, Mat, PetscInt, PetscErrorCode etc 2030 $ and you must declare the variables as integer, for example 2031 $ integer variablename 2032 $ 2033 $ 4a) skip the #include, you use the object types like type(Vec) type(Mat) but cannot use the data type 2034 $ names like PetscErrorCode, PetscInt etc. again for those you must use integer 2035 2036 We recommend either 2 or 3. Approaches 2 and 3 provide type checking for most PETSc function calls; 4 has type checking 2037 for only a few PETSc functions. 2038 2039 Fortran type checking with interfaces is strick, this means you cannot pass a scalar value when an array value 2040 is expected (even though it is legal Fortran). For example when setting a single value in a matrix with MatSetValues() 2041 you cannot have something like 2042 $ PetscInt row,col 2043 $ PetscScalar val 2044 $ ... 2045 $ call MatSetValues(mat,1,row,1,col,val,INSERT_VALUES,ierr) 2046 You must instead have 2047 $ PetscInt row(1),col(1) 2048 $ PetscScalar val(1) 2049 $ ... 2050 $ call MatSetValues(mat,1,row,1,col,val,INSERT_VALUES,ierr) 2051 2052 2053 See the example src/vec/vec/examples/tutorials/ex20f90.F90 for an example that can use all four approaches 2054 2055 Developer Notes: The finclude/petscXXXdef.h contain all the #defines (would be typedefs in C code) these 2056 automatically include their predecessors; for example finclude/petscvecdef.h includes finclude/petscisdef.h 2057 2058 The finclude/petscXXXX.h contain all the parameter statements for that package. These automatically include 2059 their finclude/petscXXXdef.h file but DO NOT automatically include their predecessors; for example 2060 finclude/petscvec.h does NOT automatically include finclude/petscis.h 2061 2062 The finclude/ftn-custom/petscXXXdef.h90 are not intended to be used directly in code, they define the 2063 Fortran data type type(XXX) (for example type(Vec)) when PETSc is ./configure with the --with-fortran-datatypes option. 2064 2065 The finclude/ftn-custom/petscXXX.h90 (not included directly by code) contain interface definitions for 2066 the PETSc Fortran stubs that have different bindings then their C version (for example VecGetArrayF90). 2067 2068 The finclude/ftn-auto/petscXXX.h90 (not included directly by code) contain interface definitions generated 2069 automatically by "make allfortranstubs". 2070 2071 The finclude/petscXXX.h90 includes the custom finclude/ftn-custom/petscXXX.h90 and if ./configure 2072 was run with --with-fortran-interfaces it also includes the finclude/ftn-auto/petscXXX.h90 These DO NOT automatically 2073 include their predecessors 2074 2075 Level: beginner 2076 2077 M*/ 2078 2079 PETSC_EXTERN PetscErrorCode PetscGetArchType(char[],size_t); 2080 PETSC_EXTERN PetscErrorCode PetscGetHostName(char[],size_t); 2081 PETSC_EXTERN PetscErrorCode PetscGetUserName(char[],size_t); 2082 PETSC_EXTERN PetscErrorCode PetscGetProgramName(char[],size_t); 2083 PETSC_EXTERN PetscErrorCode PetscSetProgramName(const char[]); 2084 PETSC_EXTERN PetscErrorCode PetscGetDate(char[],size_t); 2085 PETSC_EXTERN PetscErrorCode PetscGetVersion(char[], size_t); 2086 2087 PETSC_EXTERN PetscErrorCode PetscSortInt(PetscInt,PetscInt[]); 2088 PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsInt(PetscInt*,PetscInt[]); 2089 PETSC_EXTERN PetscErrorCode PetscFindInt(PetscInt, PetscInt, const PetscInt[], PetscInt*); 2090 PETSC_EXTERN PetscErrorCode PetscSortIntWithPermutation(PetscInt,const PetscInt[],PetscInt[]); 2091 PETSC_EXTERN PetscErrorCode PetscSortStrWithPermutation(PetscInt,const char*[],PetscInt[]); 2092 PETSC_EXTERN PetscErrorCode PetscSortIntWithArray(PetscInt,PetscInt[],PetscInt[]); 2093 PETSC_EXTERN PetscErrorCode PetscSortIntWithArrayPair(PetscInt,PetscInt*,PetscInt*,PetscInt*); 2094 PETSC_EXTERN PetscErrorCode PetscSortMPIInt(PetscInt,PetscMPIInt[]); 2095 PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsMPIInt(PetscInt*,PetscMPIInt[]); 2096 PETSC_EXTERN PetscErrorCode PetscSortMPIIntWithArray(PetscMPIInt,PetscMPIInt[],PetscMPIInt[]); 2097 PETSC_EXTERN PetscErrorCode PetscSortIntWithScalarArray(PetscInt,PetscInt[],PetscScalar[]); 2098 PETSC_EXTERN PetscErrorCode PetscSortReal(PetscInt,PetscReal[]); 2099 PETSC_EXTERN PetscErrorCode PetscSortRealWithPermutation(PetscInt,const PetscReal[],PetscInt[]); 2100 PETSC_EXTERN PetscErrorCode PetscSortSplit(PetscInt,PetscInt,PetscScalar[],PetscInt[]); 2101 PETSC_EXTERN PetscErrorCode PetscSortSplitReal(PetscInt,PetscInt,PetscReal[],PetscInt[]); 2102 PETSC_EXTERN PetscErrorCode PetscProcessTree(PetscInt,const PetscBool [],const PetscInt[],PetscInt*,PetscInt**,PetscInt**,PetscInt**,PetscInt**); 2103 PETSC_EXTERN PetscErrorCode PetscMergeIntArrayPair(PetscInt,const PetscInt*,const PetscInt*,PetscInt,const PetscInt*,const PetscInt*,PetscInt*,PetscInt**,PetscInt**); 2104 2105 PETSC_EXTERN PetscErrorCode PetscSetDisplay(void); 2106 PETSC_EXTERN PetscErrorCode PetscGetDisplay(char[],size_t); 2107 2108 /*J 2109 PetscRandomType - String with the name of a PETSc randomizer 2110 2111 Level: beginner 2112 2113 Notes: to use the SPRNG you must have ./configure PETSc 2114 with the option --download-sprng 2115 2116 .seealso: PetscRandomSetType(), PetscRandom, PetscRandomCreate() 2117 J*/ 2118 typedef const char* PetscRandomType; 2119 #define PETSCRAND "rand" 2120 #define PETSCRAND48 "rand48" 2121 #define PETSCSPRNG "sprng" 2122 2123 /* Logging support */ 2124 PETSC_EXTERN PetscClassId PETSC_RANDOM_CLASSID; 2125 2126 PETSC_EXTERN PetscErrorCode PetscRandomInitializePackage(void); 2127 2128 /*S 2129 PetscRandom - Abstract PETSc object that manages generating random numbers 2130 2131 Level: intermediate 2132 2133 Concepts: random numbers 2134 2135 .seealso: PetscRandomCreate(), PetscRandomGetValue(), PetscRandomType 2136 S*/ 2137 typedef struct _p_PetscRandom* PetscRandom; 2138 2139 /* Dynamic creation and loading functions */ 2140 PETSC_EXTERN PetscFunctionList PetscRandomList; 2141 PETSC_EXTERN PetscBool PetscRandomRegisterAllCalled; 2142 2143 PETSC_EXTERN PetscErrorCode PetscRandomRegisterAll(void); 2144 PETSC_EXTERN PetscErrorCode PetscRandomRegister(const char[],PetscErrorCode (*)(PetscRandom)); 2145 PETSC_EXTERN PetscErrorCode PetscRandomSetType(PetscRandom, PetscRandomType); 2146 PETSC_EXTERN PetscErrorCode PetscRandomSetFromOptions(PetscRandom); 2147 PETSC_EXTERN PetscErrorCode PetscRandomGetType(PetscRandom, PetscRandomType*); 2148 PETSC_EXTERN PetscErrorCode PetscRandomViewFromOptions(PetscRandom,const char[],const char[]); 2149 PETSC_EXTERN PetscErrorCode PetscRandomView(PetscRandom,PetscViewer); 2150 2151 PETSC_EXTERN PetscErrorCode PetscRandomCreate(MPI_Comm,PetscRandom*); 2152 PETSC_EXTERN PetscErrorCode PetscRandomGetValue(PetscRandom,PetscScalar*); 2153 PETSC_EXTERN PetscErrorCode PetscRandomGetValueReal(PetscRandom,PetscReal*); 2154 PETSC_EXTERN PetscErrorCode PetscRandomGetInterval(PetscRandom,PetscScalar*,PetscScalar*); 2155 PETSC_EXTERN PetscErrorCode PetscRandomSetInterval(PetscRandom,PetscScalar,PetscScalar); 2156 PETSC_EXTERN PetscErrorCode PetscRandomSetSeed(PetscRandom,unsigned long); 2157 PETSC_EXTERN PetscErrorCode PetscRandomGetSeed(PetscRandom,unsigned long *); 2158 PETSC_EXTERN PetscErrorCode PetscRandomSeed(PetscRandom); 2159 PETSC_EXTERN PetscErrorCode PetscRandomDestroy(PetscRandom*); 2160 2161 PETSC_EXTERN PetscErrorCode PetscGetFullPath(const char[],char[],size_t); 2162 PETSC_EXTERN PetscErrorCode PetscGetRelativePath(const char[],char[],size_t); 2163 PETSC_EXTERN PetscErrorCode PetscGetWorkingDirectory(char[],size_t); 2164 PETSC_EXTERN PetscErrorCode PetscGetRealPath(const char[],char[]); 2165 PETSC_EXTERN PetscErrorCode PetscGetHomeDirectory(char[],size_t); 2166 PETSC_EXTERN PetscErrorCode PetscTestFile(const char[],char,PetscBool *); 2167 PETSC_EXTERN PetscErrorCode PetscTestDirectory(const char[],char,PetscBool *); 2168 2169 PETSC_EXTERN PetscErrorCode PetscBinaryRead(int,void*,PetscInt,PetscDataType); 2170 PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedRead(MPI_Comm,int,void*,PetscInt,PetscDataType); 2171 PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedWrite(MPI_Comm,int,void*,PetscInt,PetscDataType,PetscBool ); 2172 PETSC_EXTERN PetscErrorCode PetscBinaryWrite(int,void*,PetscInt,PetscDataType,PetscBool ); 2173 PETSC_EXTERN PetscErrorCode PetscBinaryOpen(const char[],PetscFileMode,int *); 2174 PETSC_EXTERN PetscErrorCode PetscBinaryClose(int); 2175 PETSC_EXTERN PetscErrorCode PetscSharedTmp(MPI_Comm,PetscBool *); 2176 PETSC_EXTERN PetscErrorCode PetscSharedWorkingDirectory(MPI_Comm,PetscBool *); 2177 PETSC_EXTERN PetscErrorCode PetscGetTmp(MPI_Comm,char[],size_t); 2178 PETSC_EXTERN PetscErrorCode PetscFileRetrieve(MPI_Comm,const char[],char[],size_t,PetscBool *); 2179 PETSC_EXTERN PetscErrorCode PetscLs(MPI_Comm,const char[],char[],size_t,PetscBool *); 2180 PETSC_EXTERN PetscErrorCode PetscOpenSocket(char*,int,int*); 2181 PETSC_EXTERN PetscErrorCode PetscWebServe(MPI_Comm,int); 2182 2183 /* 2184 In binary files variables are stored using the following lengths, 2185 regardless of how they are stored in memory on any one particular 2186 machine. Use these rather then sizeof() in computing sizes for 2187 PetscBinarySeek(). 2188 */ 2189 #define PETSC_BINARY_INT_SIZE (32/8) 2190 #define PETSC_BINARY_FLOAT_SIZE (32/8) 2191 #define PETSC_BINARY_CHAR_SIZE (8/8) 2192 #define PETSC_BINARY_SHORT_SIZE (16/8) 2193 #define PETSC_BINARY_DOUBLE_SIZE (64/8) 2194 #define PETSC_BINARY_SCALAR_SIZE sizeof(PetscScalar) 2195 2196 /*E 2197 PetscBinarySeekType - argument to PetscBinarySeek() 2198 2199 Level: advanced 2200 2201 .seealso: PetscBinarySeek(), PetscBinarySynchronizedSeek() 2202 E*/ 2203 typedef enum {PETSC_BINARY_SEEK_SET = 0,PETSC_BINARY_SEEK_CUR = 1,PETSC_BINARY_SEEK_END = 2} PetscBinarySeekType; 2204 PETSC_EXTERN PetscErrorCode PetscBinarySeek(int,off_t,PetscBinarySeekType,off_t*); 2205 PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedSeek(MPI_Comm,int,off_t,PetscBinarySeekType,off_t*); 2206 PETSC_EXTERN PetscErrorCode PetscByteSwap(void *,PetscDataType,PetscInt); 2207 2208 PETSC_EXTERN PetscErrorCode PetscSetDebugTerminal(const char[]); 2209 PETSC_EXTERN PetscErrorCode PetscSetDebugger(const char[],PetscBool ); 2210 PETSC_EXTERN PetscErrorCode PetscSetDefaultDebugger(void); 2211 PETSC_EXTERN PetscErrorCode PetscSetDebuggerFromString(const char*); 2212 PETSC_EXTERN PetscErrorCode PetscAttachDebugger(void); 2213 PETSC_EXTERN PetscErrorCode PetscStopForDebugger(void); 2214 2215 PETSC_EXTERN PetscErrorCode PetscGatherNumberOfMessages(MPI_Comm,const PetscMPIInt[],const PetscMPIInt[],PetscMPIInt*); 2216 PETSC_EXTERN PetscErrorCode PetscGatherMessageLengths(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],PetscMPIInt**,PetscMPIInt**); 2217 PETSC_EXTERN PetscErrorCode PetscGatherMessageLengths2(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],const PetscMPIInt[],PetscMPIInt**,PetscMPIInt**,PetscMPIInt**); 2218 PETSC_EXTERN PetscErrorCode PetscPostIrecvInt(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],const PetscMPIInt[],PetscInt***,MPI_Request**); 2219 PETSC_EXTERN PetscErrorCode PetscPostIrecvScalar(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],const PetscMPIInt[],PetscScalar***,MPI_Request**); 2220 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSided(MPI_Comm,PetscMPIInt,MPI_Datatype,PetscInt,const PetscMPIInt*,const void*,PetscInt*,PetscMPIInt**,void*) PetscAttrMPIPointerWithType(6,3); 2221 2222 /*E 2223 PetscBuildTwoSidedType - algorithm for setting up two-sided communication 2224 2225 $ PETSC_BUILDTWOSIDED_ALLREDUCE - classical algorithm using an MPI_Allreduce with 2226 $ a buffer of length equal to the communicator size. Not memory-scalable due to 2227 $ the large reduction size. Requires only MPI-1. 2228 $ PETSC_BUILDTWOSIDED_IBARRIER - nonblocking algorithm based on MPI_Issend and MPI_Ibarrier. 2229 $ Proved communication-optimal in Hoefler, Siebert, and Lumsdaine (2010). Requires MPI-3. 2230 2231 Level: developer 2232 2233 .seealso: PetscCommBuildTwoSided(), PetscCommBuildTwoSidedSetType(), PetscCommBuildTwoSidedGetType() 2234 E*/ 2235 typedef enum { 2236 PETSC_BUILDTWOSIDED_NOTSET = -1, 2237 PETSC_BUILDTWOSIDED_ALLREDUCE = 0, 2238 PETSC_BUILDTWOSIDED_IBARRIER = 1 2239 /* Updates here must be accompanied by updates in finclude/petscsys.h and the string array in mpits.c */ 2240 } PetscBuildTwoSidedType; 2241 PETSC_EXTERN const char *const PetscBuildTwoSidedTypes[]; 2242 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedSetType(MPI_Comm,PetscBuildTwoSidedType); 2243 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedGetType(MPI_Comm,PetscBuildTwoSidedType*); 2244 2245 PETSC_EXTERN PetscErrorCode PetscSSEIsEnabled(MPI_Comm,PetscBool *,PetscBool *); 2246 2247 /*E 2248 InsertMode - Whether entries are inserted or added into vectors or matrices 2249 2250 Level: beginner 2251 2252 .seealso: VecSetValues(), MatSetValues(), VecSetValue(), VecSetValuesBlocked(), 2253 VecSetValuesLocal(), VecSetValuesBlockedLocal(), MatSetValuesBlocked(), 2254 MatSetValuesBlockedLocal(), MatSetValuesLocal(), VecScatterBegin(), VecScatterEnd() 2255 E*/ 2256 typedef enum {NOT_SET_VALUES, INSERT_VALUES, ADD_VALUES, MAX_VALUES, INSERT_ALL_VALUES, ADD_ALL_VALUES, INSERT_BC_VALUES, ADD_BC_VALUES} InsertMode; 2257 2258 /*MC 2259 INSERT_VALUES - Put a value into a vector or matrix, overwrites any previous value 2260 2261 Level: beginner 2262 2263 .seealso: InsertMode, VecSetValues(), MatSetValues(), VecSetValue(), VecSetValuesBlocked(), 2264 VecSetValuesLocal(), VecSetValuesBlockedLocal(), MatSetValuesBlocked(), ADD_VALUES, 2265 MatSetValuesBlockedLocal(), MatSetValuesLocal(), VecScatterBegin(), VecScatterEnd(), MAX_VALUES 2266 2267 M*/ 2268 2269 /*MC 2270 ADD_VALUES - Adds a value into a vector or matrix, if there previously was no value, just puts the 2271 value into that location 2272 2273 Level: beginner 2274 2275 .seealso: InsertMode, VecSetValues(), MatSetValues(), VecSetValue(), VecSetValuesBlocked(), 2276 VecSetValuesLocal(), VecSetValuesBlockedLocal(), MatSetValuesBlocked(), INSERT_VALUES, 2277 MatSetValuesBlockedLocal(), MatSetValuesLocal(), VecScatterBegin(), VecScatterEnd(), MAX_VALUES 2278 2279 M*/ 2280 2281 /*MC 2282 MAX_VALUES - Puts the maximum of the scattered/gathered value and the current value into each location 2283 2284 Level: beginner 2285 2286 .seealso: InsertMode, VecScatterBegin(), VecScatterEnd(), ADD_VALUES, INSERT_VALUES 2287 2288 M*/ 2289 2290 PETSC_EXTERN MPI_Comm PetscObjectComm(PetscObject); 2291 2292 /*S 2293 PetscSubcomm - Context of MPI subcommunicators, used by PCREDUNDANT 2294 2295 Level: advanced 2296 2297 Concepts: communicator, create 2298 S*/ 2299 typedef struct _n_PetscSubcomm* PetscSubcomm; 2300 2301 struct _n_PetscSubcomm { 2302 MPI_Comm parent; /* parent communicator */ 2303 MPI_Comm dupparent; /* duplicate parent communicator, under which the processors of this subcomm have contiguous rank */ 2304 MPI_Comm comm; /* this communicator */ 2305 PetscInt n; /* num of subcommunicators under the parent communicator */ 2306 PetscInt color; /* color of processors belong to this communicator */ 2307 }; 2308 2309 typedef enum {PETSC_SUBCOMM_GENERAL=0,PETSC_SUBCOMM_CONTIGUOUS=1,PETSC_SUBCOMM_INTERLACED=2} PetscSubcommType; 2310 PETSC_EXTERN const char *const PetscSubcommTypes[]; 2311 2312 PETSC_EXTERN PetscErrorCode PetscSubcommCreate(MPI_Comm,PetscSubcomm*); 2313 PETSC_EXTERN PetscErrorCode PetscSubcommDestroy(PetscSubcomm*); 2314 PETSC_EXTERN PetscErrorCode PetscSubcommSetNumber(PetscSubcomm,PetscInt); 2315 PETSC_EXTERN PetscErrorCode PetscSubcommSetType(PetscSubcomm,PetscSubcommType); 2316 PETSC_EXTERN PetscErrorCode PetscSubcommSetTypeGeneral(PetscSubcomm,PetscMPIInt,PetscMPIInt,PetscMPIInt); 2317 2318 /*S 2319 PetscSegBuffer - a segmented extendable buffer 2320 2321 Level: developer 2322 2323 .seealso: PetscSegBufferCreate(), PetscSegBufferGet(), PetscSegBufferExtract(), PetscSegBufferDestroy() 2324 S*/ 2325 typedef struct _n_PetscSegBuffer *PetscSegBuffer; 2326 PETSC_EXTERN PetscErrorCode PetscSegBufferCreate(size_t,size_t,PetscSegBuffer*); 2327 PETSC_EXTERN PetscErrorCode PetscSegBufferDestroy(PetscSegBuffer*); 2328 PETSC_EXTERN PetscErrorCode PetscSegBufferGet(PetscSegBuffer,size_t,void*); 2329 PETSC_EXTERN PetscErrorCode PetscSegBufferExtractAlloc(PetscSegBuffer,void*); 2330 PETSC_EXTERN PetscErrorCode PetscSegBufferExtractTo(PetscSegBuffer,void*); 2331 PETSC_EXTERN PetscErrorCode PetscSegBufferExtractInPlace(PetscSegBuffer,void*); 2332 PETSC_EXTERN PetscErrorCode PetscSegBufferGetSize(PetscSegBuffer,size_t*); 2333 PETSC_EXTERN PetscErrorCode PetscSegBufferUnuse(PetscSegBuffer,size_t); 2334 2335 /* Type-safe wrapper to encourage use of PETSC_RESTRICT. Does not use PetscFunctionBegin because the error handling 2336 * prevents the compiler from completely erasing the stub. This is called in inner loops so it has to be as fast as 2337 * possible. */ 2338 PETSC_STATIC_INLINE PetscErrorCode PetscSegBufferGetInts(PetscSegBuffer seg,PetscInt count,PetscInt *PETSC_RESTRICT *slot) {return PetscSegBufferGet(seg,count,(void**)slot);} 2339 2340 /* Reset __FUNCT__ in case the user does not define it themselves */ 2341 #undef __FUNCT__ 2342 #define __FUNCT__ "User provided function" 2343 2344 #endif 2345