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