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 For --prefix installs the ${PETSC_ARCH}/ does not exist and petscconf.h is in the same 12 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__DEFAULT_SOURCE) && !defined(_DEFAULT_SOURCE) 29 #define _DEFAULT_SOURCE 30 #endif 31 #if defined(PETSC__GNU_SOURCE) && !defined(_GNU_SOURCE) 32 #define _GNU_SOURCE 33 #endif 34 #endif 35 36 /* ========================================================================== */ 37 /* 38 This facilitates using the C version of PETSc from C++ and the C++ version from C. 39 */ 40 #if defined(__cplusplus) 41 # define PETSC_FUNCTION_NAME PETSC_FUNCTION_NAME_CXX 42 #else 43 # define PETSC_FUNCTION_NAME PETSC_FUNCTION_NAME_C 44 #endif 45 46 /* ========================================================================== */ 47 /* 48 Since PETSc manages its own extern "C" handling users should never include PETSc include 49 files within extern "C". This will generate a compiler error if a user does put the include 50 file within an extern "C". 51 */ 52 #if defined(__cplusplus) 53 void assert_never_put_petsc_headers_inside_an_extern_c(int); void assert_never_put_petsc_headers_inside_an_extern_c(double); 54 #endif 55 56 #if defined(__cplusplus) 57 # define PETSC_RESTRICT PETSC_CXX_RESTRICT 58 #else 59 # define PETSC_RESTRICT PETSC_C_RESTRICT 60 #endif 61 62 #if defined(__cplusplus) 63 # define PETSC_STATIC_INLINE PETSC_CXX_STATIC_INLINE 64 #else 65 # define PETSC_STATIC_INLINE PETSC_C_STATIC_INLINE 66 #endif 67 68 #if defined(_WIN32) && defined(PETSC_USE_SHARED_LIBRARIES) /* For Win32 shared libraries */ 69 # define PETSC_DLLEXPORT __declspec(dllexport) 70 # define PETSC_DLLIMPORT __declspec(dllimport) 71 # define PETSC_VISIBILITY_INTERNAL 72 #elif defined(PETSC_USE_VISIBILITY_CXX) && defined(__cplusplus) 73 # define PETSC_DLLEXPORT __attribute__((visibility ("default"))) 74 # define PETSC_DLLIMPORT __attribute__((visibility ("default"))) 75 # define PETSC_VISIBILITY_INTERNAL __attribute__((visibility ("hidden"))) 76 #elif defined(PETSC_USE_VISIBILITY_C) && !defined(__cplusplus) 77 # define PETSC_DLLEXPORT __attribute__((visibility ("default"))) 78 # define PETSC_DLLIMPORT __attribute__((visibility ("default"))) 79 # define PETSC_VISIBILITY_INTERNAL __attribute__((visibility ("hidden"))) 80 #else 81 # define PETSC_DLLEXPORT 82 # define PETSC_DLLIMPORT 83 # define PETSC_VISIBILITY_INTERNAL 84 #endif 85 86 #if defined(petsc_EXPORTS) /* CMake defines this when building the shared library */ 87 # define PETSC_VISIBILITY_PUBLIC PETSC_DLLEXPORT 88 #else /* Win32 users need this to import symbols from petsc.dll */ 89 # define PETSC_VISIBILITY_PUBLIC PETSC_DLLIMPORT 90 #endif 91 92 /* 93 Functions tagged with PETSC_EXTERN in the header files are 94 always defined as extern "C" when compiled with C++ so they may be 95 used from C and are always visible in the shared libraries 96 */ 97 #if defined(__cplusplus) 98 #define PETSC_EXTERN extern "C" PETSC_VISIBILITY_PUBLIC 99 #define PETSC_EXTERN_TYPEDEF extern "C" 100 #define PETSC_INTERN extern "C" PETSC_VISIBILITY_INTERNAL 101 #else 102 #define PETSC_EXTERN extern PETSC_VISIBILITY_PUBLIC 103 #define PETSC_EXTERN_TYPEDEF 104 #define PETSC_INTERN extern PETSC_VISIBILITY_INTERNAL 105 #endif 106 107 #include <petscversion.h> 108 #define PETSC_AUTHOR_INFO " The PETSc Team\n petsc-maint@mcs.anl.gov\n http://www.mcs.anl.gov/petsc/\n" 109 110 /* ========================================================================== */ 111 112 /* 113 Defines the interface to MPI allowing the use of all MPI functions. 114 115 PETSc does not use the C++ binding of MPI at ALL. The following flag 116 makes sure the C++ bindings are not included. The C++ bindings REQUIRE 117 putting mpi.h before ANY C++ include files, we cannot control this 118 with all PETSc users. Users who want to use the MPI C++ bindings can include 119 mpicxx.h directly in their code 120 */ 121 #if !defined(MPICH_SKIP_MPICXX) 122 # define MPICH_SKIP_MPICXX 1 123 #endif 124 #if !defined(OMPI_SKIP_MPICXX) 125 # define OMPI_SKIP_MPICXX 1 126 #endif 127 #if !defined(OMPI_WANT_MPI_INTERFACE_WARNING) 128 # define OMPI_WANT_MPI_INTERFACE_WARNING 0 129 #endif 130 #include <mpi.h> 131 132 /* 133 Perform various sanity checks that the correct mpi.h is being included at compile time. 134 This usually happens because 135 * either an unexpected mpi.h is in the default compiler path (i.e. in /usr/include) or 136 * an extra include path -I/something (which contains the unexpected mpi.h) is being passed to the compiler 137 */ 138 #if defined(PETSC_HAVE_MPIUNI) 139 # if !defined(__MPIUNI_H) 140 # error "PETSc was configured with --with-mpi=0 but now appears to be compiling using a different mpi.h" 141 # endif 142 #elif defined(PETSC_HAVE_MPICH_NUMVERSION) 143 # if !defined(MPICH_NUMVERSION) 144 # error "PETSc was configured with MPICH but now appears to be compiling using a non-MPICH mpi.h" 145 # elif MPICH_NUMVERSION != PETSC_HAVE_MPICH_NUMVERSION 146 # error "PETSc was configured with one MPICH mpi.h version but now appears to be compiling using a different MPICH mpi.h version" 147 # endif 148 #elif defined(PETSC_HAVE_OMPI_MAJOR_VERSION) 149 # if !defined(OMPI_MAJOR_VERSION) 150 # error "PETSc was configured with OpenMPI but now appears to be compiling using a non-OpenMPI mpi.h" 151 # elif (OMPI_MAJOR_VERSION != PETSC_HAVE_OMPI_MAJOR_VERSION) || (OMPI_MINOR_VERSION != PETSC_HAVE_OMPI_MINOR_VERSION) || (OMPI_RELEASE_VERSION != PETSC_HAVE_OMPI_RELEASE_VERSION) 152 # error "PETSc was configured with one OpenMPI mpi.h version but now appears to be compiling using a different OpenMPI mpi.h version" 153 # endif 154 #endif 155 156 /* 157 Need to put stdio.h AFTER mpi.h for MPICH2 with C++ compiler 158 see the top of mpicxx.h in the MPICH2 distribution. 159 */ 160 #include <stdio.h> 161 162 /* MSMPI on 32bit windows requires this yukky hack - that breaks MPI standard compliance */ 163 #if !defined(MPIAPI) 164 #define MPIAPI 165 #endif 166 167 /* 168 Support for Clang (>=3.2) matching type tag arguments with void* buffer types. 169 This allows the compiler to detect cases where the MPI datatype argument passed to a MPI routine 170 does not match the actual type of the argument being passed in 171 */ 172 #if defined(__has_attribute) && defined(works_with_const_which_is_not_true) 173 # if __has_attribute(argument_with_type_tag) && __has_attribute(pointer_with_type_tag) && __has_attribute(type_tag_for_datatype) 174 # define PetscAttrMPIPointerWithType(bufno,typeno) __attribute__((pointer_with_type_tag(MPI,bufno,typeno))) 175 # define PetscAttrMPITypeTag(type) __attribute__((type_tag_for_datatype(MPI,type))) 176 # define PetscAttrMPITypeTagLayoutCompatible(type) __attribute__((type_tag_for_datatype(MPI,type,layout_compatible))) 177 # endif 178 #endif 179 #if !defined(PetscAttrMPIPointerWithType) 180 # define PetscAttrMPIPointerWithType(bufno,typeno) 181 # define PetscAttrMPITypeTag(type) 182 # define PetscAttrMPITypeTagLayoutCompatible(type) 183 #endif 184 185 /*MC 186 PetscErrorCode - datatype used for return error code from almost all PETSc functions 187 188 Level: beginner 189 190 .seealso: CHKERRQ, SETERRQ 191 M*/ 192 typedef int PetscErrorCode; 193 194 /*MC 195 196 PetscClassId - A unique id used to identify each PETSc class. 197 198 Notes: Use PetscClassIdRegister() to obtain a new value for a new class being created. Usually 199 XXXInitializePackage() calls it for each class it defines. 200 201 Developer Notes: Internal integer stored in the _p_PetscObject data structure. 202 These are all computed by an offset from the lowest one, PETSC_SMALLEST_CLASSID. 203 204 Level: developer 205 206 .seealso: PetscClassIdRegister(), PetscLogEventRegister(), PetscHeaderCreate() 207 M*/ 208 typedef int PetscClassId; 209 210 211 /*MC 212 PetscMPIInt - datatype used to represent 'int' parameters to MPI functions. 213 214 Level: intermediate 215 216 Notes: usually this is the same as PetscInt, but if PETSc was built with --with-64-bit-indices but 217 standard C/Fortran integers are 32 bit then this is NOT the same as PetscInt it remains 32 bit 218 219 PetscMPIIntCast(a,&b) checks if the given PetscInt a will fit in a PetscMPIInt, if not it 220 generates a PETSC_ERR_ARG_OUTOFRANGE error. 221 222 .seealso: PetscBLASInt, PetscInt, PetscMPIIntCast() 223 224 M*/ 225 typedef int PetscMPIInt; 226 227 /*MC 228 PetscEnum - datatype used to pass enum types within PETSc functions. 229 230 Level: intermediate 231 232 .seealso: PetscOptionsGetEnum(), PetscOptionsEnum(), PetscBagRegisterEnum() 233 M*/ 234 typedef enum { ENUM_DUMMY } PetscEnum; 235 PETSC_EXTERN MPI_Datatype MPIU_ENUM PetscAttrMPITypeTag(PetscEnum); 236 237 #if defined(PETSC_HAVE_STDINT_H) 238 #include <stdint.h> 239 #endif 240 #if defined (PETSC_HAVE_INTTYPES_H) 241 #define __STDC_FORMAT_MACROS /* required for using PRId64 from c++ */ 242 #include <inttypes.h> 243 # if !defined(PRId64) 244 # define PRId64 "ld" 245 # endif 246 #endif 247 248 typedef short PetscShort; 249 typedef char PetscChar; 250 typedef float PetscFloat; 251 252 /*MC 253 PetscInt - PETSc type that represents integer - used primarily to 254 represent size of arrays and indexing into arrays. Its size can be configured with the option 255 --with-64-bit-indices - to be either 32bit or 64bit [default 32 bit ints] 256 257 Level: intermediate 258 259 .seealso: PetscScalar, PetscBLASInt, PetscMPIInt 260 M*/ 261 #if defined(PETSC_HAVE_STDINT_H) && defined(PETSC_HAVE_INTTYPES_H) && defined(PETSC_HAVE_MPI_INT64_T) /* MPI_INT64_T is not guaranteed to be a macro */ 262 typedef int64_t PetscInt64; 263 # define MPIU_INT64 MPI_INT64_T 264 # define PetscInt64_FMT PRId64 265 #elif (PETSC_SIZEOF_LONG_LONG == 8) 266 typedef long long PetscInt64; 267 # define MPIU_INT64 MPI_LONG_LONG_INT 268 # define PetscInt64_FMT "lld" 269 #elif defined(PETSC_HAVE___INT64) 270 typedef __int64 PetscInt64; 271 # define MPIU_INT64 MPI_INT64_T 272 # define PetscInt64_FMT "ld" 273 #else 274 #error "cannot determine PetscInt64 type" 275 #endif 276 #if defined(PETSC_USE_64BIT_INDICES) 277 typedef PetscInt64 PetscInt; 278 #define MPIU_INT MPIU_INT64 279 #define PetscInt_FMT PetscInt64_FMT 280 #else 281 typedef int PetscInt; 282 #define MPIU_INT MPI_INT 283 #define PetscInt_FMT "d" 284 #endif 285 286 /*MC 287 PetscBLASInt - datatype used to represent 'int' parameters to BLAS/LAPACK functions. 288 289 Level: intermediate 290 291 Notes: usually this is the same as PetscInt, but if PETSc was built with --with-64-bit-indices but 292 standard C/Fortran integers are 32 bit then this is NOT the same as PetscInt it remains 32 bit 293 (except on very rare BLAS/LAPACK implementations that support 64 bit integers see the note below). 294 295 PetscErrorCode PetscBLASIntCast(a,&b) checks if the given PetscInt a will fit in a PetscBLASInt, if not it 296 generates a PETSC_ERR_ARG_OUTOFRANGE error 297 298 Installation Notes: The 64bit versions of MATLAB ship with BLAS and LAPACK that use 64 bit integers for sizes etc, 299 if you run ./configure with the option 300 --with-blas-lapack-lib=[/Applications/MATLAB_R2010b.app/bin/maci64/libmwblas.dylib,/Applications/MATLAB_R2010b.app/bin/maci64/libmwlapack.dylib] 301 but you need to also use --known-64-bit-blas-indices. 302 303 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 304 305 Developer Notes: Eventually ./configure should automatically determine the size of the integers used by BLAS/LAPACK. 306 307 External packages such as hypre, ML, SuperLU etc do not provide any support for passing 64 bit integers to BLAS/LAPACK so cannot 308 be used with PETSc if you have set PetscBLASInt to long int. 309 310 .seealso: PetscMPIInt, PetscInt, PetscBLASIntCast() 311 312 M*/ 313 #if defined(PETSC_HAVE_64BIT_BLAS_INDICES) 314 typedef PetscInt64 PetscBLASInt; 315 #else 316 typedef int PetscBLASInt; 317 #endif 318 319 /*EC 320 321 PetscPrecision - indicates what precision the object is using. This is currently not used. 322 323 Level: advanced 324 325 .seealso: PetscObjectSetPrecision() 326 E*/ 327 typedef enum { PETSC_PRECISION_SINGLE=4,PETSC_PRECISION_DOUBLE=8 } PetscPrecision; 328 PETSC_EXTERN const char *PetscPrecisions[]; 329 330 /* 331 For the rare cases when one needs to send a size_t object with MPI 332 */ 333 #if (PETSC_SIZEOF_SIZE_T) == (PETSC_SIZEOF_INT) 334 #define MPIU_SIZE_T MPI_UNSIGNED 335 #elif (PETSC_SIZEOF_SIZE_T) == (PETSC_SIZEOF_LONG) 336 #define MPIU_SIZE_T MPI_UNSIGNED_LONG 337 #elif (PETSC_SIZEOF_SIZE_T) == (PETSC_SIZEOF_LONG_LONG) 338 #define MPIU_SIZE_T MPI_UNSIGNED_LONG_LONG 339 #else 340 #error "Unknown size for size_t! Send us a bugreport at petsc-maint@mcs.anl.gov" 341 #endif 342 343 /* 344 You can use PETSC_STDOUT as a replacement of stdout. You can also change 345 the value of PETSC_STDOUT to redirect all standard output elsewhere 346 */ 347 PETSC_EXTERN FILE* PETSC_STDOUT; 348 349 /* 350 You can use PETSC_STDERR as a replacement of stderr. You can also change 351 the value of PETSC_STDERR to redirect all standard error elsewhere 352 */ 353 PETSC_EXTERN FILE* PETSC_STDERR; 354 355 /*MC 356 PetscUnlikely - hints the compiler that the given condition is usually FALSE 357 358 Synopsis: 359 #include <petscsys.h> 360 PetscBool PetscUnlikely(PetscBool cond) 361 362 Not Collective 363 364 Input Parameters: 365 . cond - condition or expression 366 367 Note: This returns the same truth value, it is only a hint to compilers that the resulting 368 branch is unlikely. 369 370 Level: advanced 371 372 .seealso: PetscLikely(), CHKERRQ 373 M*/ 374 375 /*MC 376 PetscLikely - hints the compiler that the given condition is usually TRUE 377 378 Synopsis: 379 #include <petscsys.h> 380 PetscBool PetscUnlikely(PetscBool cond) 381 382 Not Collective 383 384 Input Parameters: 385 . cond - condition or expression 386 387 Note: This returns the same truth value, it is only a hint to compilers that the resulting 388 branch is likely. 389 390 Level: advanced 391 392 .seealso: PetscUnlikely() 393 M*/ 394 #if defined(PETSC_HAVE_BUILTIN_EXPECT) 395 # define PetscUnlikely(cond) __builtin_expect(!!(cond),0) 396 # define PetscLikely(cond) __builtin_expect(!!(cond),1) 397 #else 398 # define PetscUnlikely(cond) (cond) 399 # define PetscLikely(cond) (cond) 400 #endif 401 402 /* 403 Declare extern C stuff after including external header files 404 */ 405 406 407 /* 408 Basic PETSc constants 409 */ 410 411 /*E 412 PetscBool - Logical variable. Actually an int in C and a logical in Fortran. 413 414 Level: beginner 415 416 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 417 boolean values. It is not easy to have a simple macro that that will work properly in all circumstances with all three mechanisms. 418 419 .seealso: PETSC_TRUE, PETSC_FALSE, PetscNot() 420 E*/ 421 typedef enum { PETSC_FALSE,PETSC_TRUE } PetscBool; 422 PETSC_EXTERN const char *const PetscBools[]; 423 PETSC_EXTERN MPI_Datatype MPIU_BOOL PetscAttrMPITypeTag(PetscBool); 424 425 /* 426 Defines some elementary mathematics functions and constants. 427 */ 428 #include <petscmath.h> 429 430 /*E 431 PetscCopyMode - Determines how an array passed to certain functions is copied or retained 432 433 Level: beginner 434 435 $ PETSC_COPY_VALUES - the array values are copied into new space, the user is free to reuse or delete the passed in array 436 $ 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 437 $ delete the array. The array MUST have been obtained with PetscMalloc(). Hence this mode cannot be used in Fortran. 438 $ 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 439 the array but the user must delete the array after the object is destroyed. 440 441 E*/ 442 typedef enum { PETSC_COPY_VALUES, PETSC_OWN_POINTER, PETSC_USE_POINTER} PetscCopyMode; 443 PETSC_EXTERN const char *const PetscCopyModes[]; 444 445 /*MC 446 PETSC_FALSE - False value of PetscBool 447 448 Level: beginner 449 450 Note: Zero integer 451 452 .seealso: PetscBool, PETSC_TRUE 453 M*/ 454 455 /*MC 456 PETSC_TRUE - True value of PetscBool 457 458 Level: beginner 459 460 Note: Nonzero integer 461 462 .seealso: PetscBool, PETSC_FALSE 463 M*/ 464 465 /*MC 466 PETSC_NULL - standard way of passing in a null or array or pointer. This is deprecated in C/C++ simply use NULL 467 468 Level: beginner 469 470 Notes: accepted by many PETSc functions to not set a parameter and instead use 471 some default 472 473 This macro does not exist in Fortran; you must use PETSC_NULL_INTEGER, 474 PETSC_NULL_DOUBLE_PRECISION, PETSC_NULL_FUNCTION, PETSC_NULL_VEC etc 475 476 .seealso: PETSC_DECIDE, PETSC_DEFAULT, PETSC_IGNORE, PETSC_DETERMINE 477 478 M*/ 479 #define PETSC_NULL NULL 480 481 /*MC 482 PETSC_IGNORE - same as NULL, means PETSc will ignore this argument 483 484 Level: beginner 485 486 Note: accepted by many PETSc functions to not set a parameter and instead use 487 some default 488 489 Fortran Notes: This macro does not exist in Fortran; you must use PETSC_NULL_INTEGER, 490 PETSC_NULL_DOUBLE_PRECISION etc 491 492 .seealso: PETSC_DECIDE, PETSC_DEFAULT, PETSC_NULL, PETSC_DETERMINE 493 494 M*/ 495 #define PETSC_IGNORE NULL 496 497 /*MC 498 PETSC_DECIDE - standard way of passing in integer or floating point parameter 499 where you wish PETSc to use the default. 500 501 Level: beginner 502 503 .seealso: PETSC_NULL, PETSC_DEFAULT, PETSC_IGNORE, PETSC_DETERMINE 504 505 M*/ 506 #define PETSC_DECIDE -1 507 508 /*MC 509 PETSC_DETERMINE - standard way of passing in integer or floating point parameter 510 where you wish PETSc to compute the required value. 511 512 Level: beginner 513 514 Developer Note: I would like to use const PetscInt PETSC_DETERMINE = PETSC_DECIDE; but for 515 some reason this is not allowed by the standard even though PETSC_DECIDE is a constant value. 516 517 .seealso: PETSC_DECIDE, PETSC_DEFAULT, PETSC_IGNORE, VecSetSizes() 518 519 M*/ 520 #define PETSC_DETERMINE PETSC_DECIDE 521 522 /*MC 523 PETSC_DEFAULT - standard way of passing in integer or floating point parameter 524 where you wish PETSc to use the default. 525 526 Level: beginner 527 528 Fortran Notes: You need to use PETSC_DEFAULT_INTEGER or PETSC_DEFAULT_REAL. 529 530 .seealso: PETSC_DECIDE, PETSC_IGNORE, PETSC_DETERMINE 531 532 M*/ 533 #define PETSC_DEFAULT -2 534 535 /*MC 536 PETSC_COMM_WORLD - the equivalent of the MPI_COMM_WORLD communicator which represents 537 all the processs that PETSc knows about. 538 539 Level: beginner 540 541 Notes: By default PETSC_COMM_WORLD and MPI_COMM_WORLD are identical unless you wish to 542 run PETSc on ONLY a subset of MPI_COMM_WORLD. In that case create your new (smaller) 543 communicator, call it, say comm, and set PETSC_COMM_WORLD = comm BEFORE calling 544 PetscInitialize(), but after MPI_Init() has been called. 545 546 The value of PETSC_COMM_WORLD should never be USED/accessed before PetscInitialize() 547 is called because it may not have a valid value yet. 548 549 .seealso: PETSC_COMM_SELF 550 551 M*/ 552 PETSC_EXTERN MPI_Comm PETSC_COMM_WORLD; 553 554 /*MC 555 PETSC_COMM_SELF - This is always MPI_COMM_SELF 556 557 Level: beginner 558 559 Notes: Do not USE/access or set this variable before PetscInitialize() has been called. 560 561 .seealso: PETSC_COMM_WORLD 562 563 M*/ 564 #define PETSC_COMM_SELF MPI_COMM_SELF 565 566 PETSC_EXTERN PetscBool PetscBeganMPI; 567 PETSC_EXTERN PetscBool PetscInitializeCalled; 568 PETSC_EXTERN PetscBool PetscFinalizeCalled; 569 PETSC_EXTERN PetscBool PetscCUSPSynchronize; 570 PETSC_EXTERN PetscBool PetscViennaCLSynchronize; 571 PETSC_EXTERN PetscBool PetscCUDASynchronize; 572 573 PETSC_EXTERN PetscErrorCode PetscSetHelpVersionFunctions(PetscErrorCode (*)(MPI_Comm),PetscErrorCode (*)(MPI_Comm)); 574 PETSC_EXTERN PetscErrorCode PetscCommDuplicate(MPI_Comm,MPI_Comm*,int*); 575 PETSC_EXTERN PetscErrorCode PetscCommDestroy(MPI_Comm*); 576 577 /*MC 578 PetscMalloc - Allocates memory, One should use PetscNew(), PetscMalloc1() or PetscCalloc1() usually instead of this 579 580 Synopsis: 581 #include <petscsys.h> 582 PetscErrorCode PetscMalloc(size_t m,void **result) 583 584 Not Collective 585 586 Input Parameter: 587 . m - number of bytes to allocate 588 589 Output Parameter: 590 . result - memory allocated 591 592 Level: beginner 593 594 Notes: 595 Memory is always allocated at least double aligned 596 597 It is safe to allocate size 0 and pass the resulting pointer (which may or may not be NULL) to PetscFree(). 598 599 .seealso: PetscFree(), PetscNew() 600 601 Concepts: memory allocation 602 603 M*/ 604 #define PetscMalloc(a,b) ((*PetscTrMalloc)((a),__LINE__,PETSC_FUNCTION_NAME,__FILE__,(void**)(b))) 605 606 /*MC 607 PetscRealloc - Rellocates memory 608 609 Synopsis: 610 #include <petscsys.h> 611 PetscErrorCode PetscRealloc(size_t m,void **result) 612 613 Not Collective 614 615 Input Parameters: 616 + m - number of bytes to allocate 617 - result - initial memory allocated 618 619 Output Parameter: 620 . result - new memory allocated 621 622 Level: developer 623 624 Notes: 625 Memory is always allocated at least double aligned 626 627 .seealso: PetscMalloc(), PetscFree(), PetscNew() 628 629 Concepts: memory allocation 630 631 M*/ 632 #define PetscRealloc(a,b) ((*PetscTrRealloc)((a),__LINE__,PETSC_FUNCTION_NAME,__FILE__,(void**)(b))) 633 634 /*MC 635 PetscAddrAlign - Rounds up an address to PETSC_MEMALIGN alignment 636 637 Synopsis: 638 #include <petscsys.h> 639 void *PetscAddrAlign(void *addr) 640 641 Not Collective 642 643 Input Parameters: 644 . addr - address to align (any pointer type) 645 646 Level: developer 647 648 .seealso: PetscMallocAlign() 649 650 Concepts: memory allocation 651 M*/ 652 #define PetscAddrAlign(a) (void*)((((PETSC_UINTPTR_T)(a))+(PETSC_MEMALIGN-1)) & ~(PETSC_MEMALIGN-1)) 653 654 /*MC 655 PetscMalloc1 - Allocates an array of memory aligned to PETSC_MEMALIGN 656 657 Synopsis: 658 #include <petscsys.h> 659 PetscErrorCode PetscMalloc1(size_t m1,type **r1) 660 661 Not Collective 662 663 Input Parameter: 664 . m1 - number of elements to allocate in 1st chunk (may be zero) 665 666 Output Parameter: 667 . r1 - memory allocated in first chunk 668 669 Level: developer 670 671 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscCalloc1(), PetscMalloc2() 672 673 Concepts: memory allocation 674 675 M*/ 676 #define PetscMalloc1(m1,r1) PetscMalloc((m1)*sizeof(**(r1)),r1) 677 678 /*MC 679 PetscCalloc1 - Allocates a cleared (zeroed) array of memory aligned to PETSC_MEMALIGN 680 681 Synopsis: 682 #include <petscsys.h> 683 PetscErrorCode PetscCalloc1(size_t m1,type **r1) 684 685 Not Collective 686 687 Input Parameter: 688 . m1 - number of elements to allocate in 1st chunk (may be zero) 689 690 Output Parameter: 691 . r1 - memory allocated in first chunk 692 693 Level: developer 694 695 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc1(), PetscCalloc2() 696 697 Concepts: memory allocation 698 699 M*/ 700 #define PetscCalloc1(m1,r1) (PetscMalloc1((m1),r1) || PetscMemzero(*(r1),(m1)*sizeof(**(r1)))) 701 702 /*MC 703 PetscMalloc2 - Allocates 2 arrays of memory both aligned to PETSC_MEMALIGN 704 705 Synopsis: 706 #include <petscsys.h> 707 PetscErrorCode PetscMalloc2(size_t m1,type **r1,size_t m2,type **r2) 708 709 Not Collective 710 711 Input Parameter: 712 + m1 - number of elements to allocate in 1st chunk (may be zero) 713 - m2 - number of elements to allocate in 2nd chunk (may be zero) 714 715 Output Parameter: 716 + r1 - memory allocated in first chunk 717 - r2 - memory allocated in second chunk 718 719 Level: developer 720 721 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc1(), PetscCalloc2() 722 723 Concepts: memory allocation 724 725 M*/ 726 #if !defined(PETSC_USE_MALLOC_COALESCED) 727 #define PetscMalloc2(m1,r1,m2,r2) (PetscMalloc1((m1),(r1)) || PetscMalloc1((m2),(r2))) 728 #else 729 #define PetscMalloc2(m1,r1,m2,r2) ((((m1)+(m2)) ? (*(r2) = 0,PetscMalloc((m1)*sizeof(**(r1))+(m2)*sizeof(**(r2))+(PETSC_MEMALIGN-1),r1)) : 0) \ 730 || (*(void**)(r2) = PetscAddrAlign(*(r1)+(m1)),0) \ 731 || (!(m1) ? (*(r1) = 0,0) : 0) || (!(m2) ? (*(r2) = 0,0) : 0)) 732 #endif 733 734 /*MC 735 PetscCalloc2 - Allocates 2 cleared (zeroed) arrays of memory both aligned to PETSC_MEMALIGN 736 737 Synopsis: 738 #include <petscsys.h> 739 PetscErrorCode PetscCalloc2(size_t m1,type **r1,size_t m2,type **r2) 740 741 Not Collective 742 743 Input Parameter: 744 + m1 - number of elements to allocate in 1st chunk (may be zero) 745 - m2 - number of elements to allocate in 2nd chunk (may be zero) 746 747 Output Parameter: 748 + r1 - memory allocated in first chunk 749 - r2 - memory allocated in second chunk 750 751 Level: developer 752 753 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscCalloc1(), PetscMalloc2() 754 755 Concepts: memory allocation 756 M*/ 757 #define PetscCalloc2(m1,r1,m2,r2) (PetscMalloc2((m1),(r1),(m2),(r2)) || PetscMemzero(*(r1),(m1)*sizeof(**(r1))) || PetscMemzero(*(r2),(m2)*sizeof(**(r2)))) 758 759 /*MC 760 PetscMalloc3 - Allocates 3 arrays of memory, all aligned to PETSC_MEMALIGN 761 762 Synopsis: 763 #include <petscsys.h> 764 PetscErrorCode PetscMalloc3(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3) 765 766 Not Collective 767 768 Input Parameter: 769 + m1 - number of elements to allocate in 1st chunk (may be zero) 770 . m2 - number of elements to allocate in 2nd chunk (may be zero) 771 - m3 - number of elements to allocate in 3rd chunk (may be zero) 772 773 Output Parameter: 774 + r1 - memory allocated in first chunk 775 . r2 - memory allocated in second chunk 776 - r3 - memory allocated in third chunk 777 778 Level: developer 779 780 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc3(), PetscFree3() 781 782 Concepts: memory allocation 783 784 M*/ 785 #if !defined(PETSC_USE_MALLOC_COALESCED) 786 #define PetscMalloc3(m1,r1,m2,r2,m3,r3) (PetscMalloc1((m1),(r1)) || PetscMalloc1((m2),(r2)) || PetscMalloc1((m3),(r3))) 787 #else 788 #define PetscMalloc3(m1,r1,m2,r2,m3,r3) ((((m1)+(m2)+(m3)) ? (*(r2) = 0,*(r3) = 0,PetscMalloc((m1)*sizeof(**(r1))+(m2)*sizeof(**(r2))+(m3)*sizeof(**(r3))+2*(PETSC_MEMALIGN-1),r1)) : 0) \ 789 || (*(void**)(r2) = PetscAddrAlign(*(r1)+(m1)),*(void**)(r3) = PetscAddrAlign(*(r2)+(m2)),0) \ 790 || (!(m1) ? (*(r1) = 0,0) : 0) || (!(m2) ? (*(r2) = 0,0) : 0) || (!(m3) ? (*(r3) = 0,0) : 0)) 791 #endif 792 793 /*MC 794 PetscCalloc3 - Allocates 3 cleared (zeroed) arrays of memory, all aligned to PETSC_MEMALIGN 795 796 Synopsis: 797 #include <petscsys.h> 798 PetscErrorCode PetscCalloc3(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3) 799 800 Not Collective 801 802 Input Parameter: 803 + m1 - number of elements to allocate in 1st chunk (may be zero) 804 . m2 - number of elements to allocate in 2nd chunk (may be zero) 805 - m3 - number of elements to allocate in 3rd chunk (may be zero) 806 807 Output Parameter: 808 + r1 - memory allocated in first chunk 809 . r2 - memory allocated in second chunk 810 - r3 - memory allocated in third chunk 811 812 Level: developer 813 814 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscCalloc2(), PetscMalloc3(), PetscFree3() 815 816 Concepts: memory allocation 817 M*/ 818 #define PetscCalloc3(m1,r1,m2,r2,m3,r3) \ 819 (PetscMalloc3((m1),(r1),(m2),(r2),(m3),(r3)) \ 820 || PetscMemzero(*(r1),(m1)*sizeof(**(r1))) || PetscMemzero(*(r2),(m2)*sizeof(**(r2))) || PetscMemzero(*(r3),(m3)*sizeof(**(r3)))) 821 822 /*MC 823 PetscMalloc4 - Allocates 4 arrays of memory, all aligned to PETSC_MEMALIGN 824 825 Synopsis: 826 #include <petscsys.h> 827 PetscErrorCode PetscMalloc4(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4) 828 829 Not Collective 830 831 Input Parameter: 832 + m1 - number of elements to allocate in 1st chunk (may be zero) 833 . m2 - number of elements to allocate in 2nd chunk (may be zero) 834 . m3 - number of elements to allocate in 3rd chunk (may be zero) 835 - m4 - number of elements to allocate in 4th chunk (may be zero) 836 837 Output Parameter: 838 + r1 - memory allocated in first chunk 839 . r2 - memory allocated in second chunk 840 . r3 - memory allocated in third chunk 841 - r4 - memory allocated in fourth chunk 842 843 Level: developer 844 845 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc4(), PetscFree4() 846 847 Concepts: memory allocation 848 849 M*/ 850 #if !defined(PETSC_USE_MALLOC_COALESCED) 851 #define PetscMalloc4(m1,r1,m2,r2,m3,r3,m4,r4) (PetscMalloc1((m1),(r1)) || PetscMalloc1((m2),(r2)) || PetscMalloc1((m3),(r3)) || PetscMalloc1((m4),(r4))) 852 #else 853 #define PetscMalloc4(m1,r1,m2,r2,m3,r3,m4,r4) \ 854 ((((m1)+(m2)+(m3)+(m4)) ? (*(r2) = 0, *(r3) = 0, *(r4) = 0,PetscMalloc((m1)*sizeof(**(r1))+(m2)*sizeof(**(r2))+(m3)*sizeof(**(r3))+(m4)*sizeof(**(r4))+3*(PETSC_MEMALIGN-1),r1)) : 0) \ 855 || (*(void**)(r2) = PetscAddrAlign(*(r1)+(m1)),*(void**)(r3) = PetscAddrAlign(*(r2)+(m2)),*(void**)(r4) = PetscAddrAlign(*(r3)+(m3)),0) \ 856 || (!(m1) ? (*(r1) = 0,0) : 0) || (!(m2) ? (*(r2) = 0,0) : 0) || (!(m3) ? (*(r3) = 0,0) : 0) || (!(m4) ? (*(r4) = 0,0) : 0)) 857 #endif 858 859 /*MC 860 PetscCalloc4 - Allocates 4 cleared (zeroed) arrays of memory, all aligned to PETSC_MEMALIGN 861 862 Synopsis: 863 #include <petscsys.h> 864 PetscErrorCode PetscCalloc4(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4) 865 866 Not Collective 867 868 Input Parameter: 869 + m1 - number of elements to allocate in 1st chunk (may be zero) 870 . m2 - number of elements to allocate in 2nd chunk (may be zero) 871 . m3 - number of elements to allocate in 3rd chunk (may be zero) 872 - m4 - number of elements to allocate in 4th chunk (may be zero) 873 874 Output Parameter: 875 + r1 - memory allocated in first chunk 876 . r2 - memory allocated in second chunk 877 . r3 - memory allocated in third chunk 878 - r4 - memory allocated in fourth chunk 879 880 Level: developer 881 882 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc4(), PetscFree4() 883 884 Concepts: memory allocation 885 886 M*/ 887 #define PetscCalloc4(m1,r1,m2,r2,m3,r3,m4,r4) \ 888 (PetscMalloc4(m1,r1,m2,r2,m3,r3,m4,r4) \ 889 || PetscMemzero(*(r1),(m1)*sizeof(**(r1))) || PetscMemzero(*(r2),(m2)*sizeof(**(r2))) || PetscMemzero(*(r3),(m3)*sizeof(**(r3))) \ 890 || PetscMemzero(*(r4),(m4)*sizeof(**(r4)))) 891 892 /*MC 893 PetscMalloc5 - Allocates 5 arrays of memory, all aligned to PETSC_MEMALIGN 894 895 Synopsis: 896 #include <petscsys.h> 897 PetscErrorCode PetscMalloc5(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5) 898 899 Not Collective 900 901 Input Parameter: 902 + m1 - number of elements to allocate in 1st chunk (may be zero) 903 . m2 - number of elements to allocate in 2nd chunk (may be zero) 904 . m3 - number of elements to allocate in 3rd chunk (may be zero) 905 . m4 - number of elements to allocate in 4th chunk (may be zero) 906 - m5 - number of elements to allocate in 5th chunk (may be zero) 907 908 Output Parameter: 909 + r1 - memory allocated in first chunk 910 . r2 - memory allocated in second chunk 911 . r3 - memory allocated in third chunk 912 . r4 - memory allocated in fourth chunk 913 - r5 - memory allocated in fifth chunk 914 915 Level: developer 916 917 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc5(), PetscFree5() 918 919 Concepts: memory allocation 920 921 M*/ 922 #if !defined(PETSC_USE_MALLOC_COALESCED) 923 #define PetscMalloc5(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5) (PetscMalloc1((m1),(r1)) || PetscMalloc1((m2),(r2)) || PetscMalloc1((m3),(r3)) || PetscMalloc1((m4),(r4)) || PetscMalloc1((m5),(r5))) 924 #else 925 #define PetscMalloc5(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5) \ 926 ((((m1)+(m2)+(m3)+(m4)+(m5)) ? (*(r2) = 0, *(r3) = 0, *(r4) = 0,*(r5) = 0,PetscMalloc((m1)*sizeof(**(r1))+(m2)*sizeof(**(r2))+(m3)*sizeof(**(r3))+(m4)*sizeof(**(r4))+(m5)*sizeof(**(r5))+4*(PETSC_MEMALIGN-1),r1)) : 0) \ 927 || (*(void**)(r2) = PetscAddrAlign(*(r1)+(m1)),*(void**)(r3) = PetscAddrAlign(*(r2)+(m2)),*(void**)(r4) = PetscAddrAlign(*(r3)+(m3)),*(void**)(r5) = PetscAddrAlign(*(r4)+(m4)),0) \ 928 || (!(m1) ? (*(r1) = 0,0) : 0) || (!(m2) ? (*(r2) = 0,0) : 0) || (!(m3) ? (*(r3) = 0,0) : 0) || (!(m4) ? (*(r4) = 0,0) : 0) || (!(m5) ? (*(r5) = 0,0) : 0)) 929 #endif 930 931 /*MC 932 PetscCalloc5 - Allocates 5 cleared (zeroed) arrays of memory, all aligned to PETSC_MEMALIGN 933 934 Synopsis: 935 #include <petscsys.h> 936 PetscErrorCode PetscCalloc5(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5) 937 938 Not Collective 939 940 Input Parameter: 941 + m1 - number of elements to allocate in 1st chunk (may be zero) 942 . m2 - number of elements to allocate in 2nd chunk (may be zero) 943 . m3 - number of elements to allocate in 3rd chunk (may be zero) 944 . m4 - number of elements to allocate in 4th chunk (may be zero) 945 - m5 - number of elements to allocate in 5th chunk (may be zero) 946 947 Output Parameter: 948 + r1 - memory allocated in first chunk 949 . r2 - memory allocated in second chunk 950 . r3 - memory allocated in third chunk 951 . r4 - memory allocated in fourth chunk 952 - r5 - memory allocated in fifth chunk 953 954 Level: developer 955 956 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc5(), PetscFree5() 957 958 Concepts: memory allocation 959 960 M*/ 961 #define PetscCalloc5(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5) \ 962 (PetscMalloc5(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5) \ 963 || PetscMemzero(*(r1),(m1)*sizeof(**(r1))) || PetscMemzero(*(r2),(m2)*sizeof(**(r2))) || PetscMemzero(*(r3),(m3)*sizeof(**(r3))) \ 964 || PetscMemzero(*(r4),(m4)*sizeof(**(r4))) || PetscMemzero(*(r5),(m5)*sizeof(**(r5)))) 965 966 /*MC 967 PetscMalloc6 - Allocates 6 arrays of memory, all aligned to PETSC_MEMALIGN 968 969 Synopsis: 970 #include <petscsys.h> 971 PetscErrorCode PetscMalloc6(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5,size_t m6,type **r6) 972 973 Not Collective 974 975 Input Parameter: 976 + m1 - number of elements to allocate in 1st chunk (may be zero) 977 . m2 - number of elements to allocate in 2nd chunk (may be zero) 978 . m3 - number of elements to allocate in 3rd chunk (may be zero) 979 . m4 - number of elements to allocate in 4th chunk (may be zero) 980 . m5 - number of elements to allocate in 5th chunk (may be zero) 981 - m6 - number of elements to allocate in 6th chunk (may be zero) 982 983 Output Parameter: 984 + r1 - memory allocated in first chunk 985 . r2 - memory allocated in second chunk 986 . r3 - memory allocated in third chunk 987 . r4 - memory allocated in fourth chunk 988 . r5 - memory allocated in fifth chunk 989 - r6 - memory allocated in sixth chunk 990 991 Level: developer 992 993 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc6(), PetscFree3(), PetscFree4(), PetscFree5(), PetscFree6() 994 995 Concepts: memory allocation 996 997 M*/ 998 #if !defined(PETSC_USE_MALLOC_COALESCED) 999 #define PetscMalloc6(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5,m6,r6) (PetscMalloc1((m1),(r1)) || PetscMalloc1((m2),(r2)) || PetscMalloc1((m3),(r3)) || PetscMalloc1((m4),(r4)) || PetscMalloc1((m5),(r5)) || PetscMalloc1((m6),(r6))) 1000 #else 1001 #define PetscMalloc6(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5,m6,r6) \ 1002 ((((m1)+(m2)+(m3)+(m4)+(m5)+(m6)) ? (*(r2) = 0, *(r3) = 0, *(r4) = 0,*(r5) = 0,*(r6) = 0,PetscMalloc((m1)*sizeof(**(r1))+(m2)*sizeof(**(r2))+(m3)*sizeof(**(r3))+(m4)*sizeof(**(r4))+(m5)*sizeof(**(r5))+(m6)*sizeof(**(r6))+5*(PETSC_MEMALIGN-1),r1)) : 0) \ 1003 || (*(void**)(r2) = PetscAddrAlign(*(r1)+(m1)),*(void**)(r3) = PetscAddrAlign(*(r2)+(m2)),*(void**)(r4) = PetscAddrAlign(*(r3)+(m3)),*(void**)(r5) = PetscAddrAlign(*(r4)+(m4)),*(void**)(r6) = PetscAddrAlign(*(r5)+(m5)),0) \ 1004 || (!(m1) ? (*(r1) = 0,0) : 0) || (!(m2) ? (*(r2) = 0,0) : 0) || (!(m3) ? (*(r3) = 0,0) : 0) || (!(m4) ? (*(r4) = 0,0) : 0) || (!(m5) ? (*(r5) = 0,0) : 0) || (!(m6) ? (*(r6) = 0,0) : 0)) 1005 #endif 1006 1007 /*MC 1008 PetscCalloc6 - Allocates 6 cleared (zeroed) arrays of memory, all aligned to PETSC_MEMALIGN 1009 1010 Synopsis: 1011 #include <petscsys.h> 1012 PetscErrorCode PetscCalloc6(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5,size_t m6,type **r6) 1013 1014 Not Collective 1015 1016 Input Parameter: 1017 + m1 - number of elements to allocate in 1st chunk (may be zero) 1018 . m2 - number of elements to allocate in 2nd chunk (may be zero) 1019 . m3 - number of elements to allocate in 3rd chunk (may be zero) 1020 . m4 - number of elements to allocate in 4th chunk (may be zero) 1021 . m5 - number of elements to allocate in 5th chunk (may be zero) 1022 - m6 - number of elements to allocate in 6th chunk (may be zero) 1023 1024 Output Parameter: 1025 + r1 - memory allocated in first chunk 1026 . r2 - memory allocated in second chunk 1027 . r3 - memory allocated in third chunk 1028 . r4 - memory allocated in fourth chunk 1029 . r5 - memory allocated in fifth chunk 1030 - r6 - memory allocated in sixth chunk 1031 1032 Level: developer 1033 1034 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscMalloc6(), PetscFree6() 1035 1036 Concepts: memory allocation 1037 M*/ 1038 #define PetscCalloc6(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5,m6,r6) \ 1039 (PetscMalloc6(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5,m6,r6) \ 1040 || PetscMemzero(*(r1),(m1)*sizeof(**(r1))) || PetscMemzero(*(r2),(m2)*sizeof(**(r2))) || PetscMemzero(*(r3),(m3)*sizeof(**(r3))) \ 1041 || PetscMemzero(*(r4),(m4)*sizeof(**(r4))) || PetscMemzero(*(r5),(m5)*sizeof(**(r5))) || PetscMemzero(*(r6),(m6)*sizeof(**(r6)))) 1042 1043 /*MC 1044 PetscMalloc7 - Allocates 7 arrays of memory, all aligned to PETSC_MEMALIGN 1045 1046 Synopsis: 1047 #include <petscsys.h> 1048 PetscErrorCode PetscMalloc7(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5,size_t m6,type **r6,size_t m7,type **r7) 1049 1050 Not Collective 1051 1052 Input Parameter: 1053 + m1 - number of elements to allocate in 1st chunk (may be zero) 1054 . m2 - number of elements to allocate in 2nd chunk (may be zero) 1055 . m3 - number of elements to allocate in 3rd chunk (may be zero) 1056 . m4 - number of elements to allocate in 4th chunk (may be zero) 1057 . m5 - number of elements to allocate in 5th chunk (may be zero) 1058 . m6 - number of elements to allocate in 6th chunk (may be zero) 1059 - m7 - number of elements to allocate in 7th chunk (may be zero) 1060 1061 Output Parameter: 1062 + r1 - memory allocated in first chunk 1063 . r2 - memory allocated in second chunk 1064 . r3 - memory allocated in third chunk 1065 . r4 - memory allocated in fourth chunk 1066 . r5 - memory allocated in fifth chunk 1067 . r6 - memory allocated in sixth chunk 1068 - r7 - memory allocated in seventh chunk 1069 1070 Level: developer 1071 1072 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscCalloc7(), PetscFree7() 1073 1074 Concepts: memory allocation 1075 1076 M*/ 1077 #if !defined(PETSC_USE_MALLOC_COALESCED) 1078 #define PetscMalloc7(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5,m6,r6,m7,r7) (PetscMalloc1((m1),(r1)) || PetscMalloc1((m2),(r2)) || PetscMalloc1((m3),(r3)) || PetscMalloc1((m4),(r4)) || PetscMalloc1((m5),(r5)) || PetscMalloc1((m6),(r6)) || PetscMalloc1((m7),(r7))) 1079 #else 1080 #define PetscMalloc7(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5,m6,r6,m7,r7) \ 1081 ((((m1)+(m2)+(m3)+(m4)+(m5)+(m6)+(m7)) ? (*(r2) = 0, *(r3) = 0, *(r4) = 0,*(r5) = 0,*(r6) = 0,*(r7) = 0,PetscMalloc((m1)*sizeof(**(r1))+(m2)*sizeof(**(r2))+(m3)*sizeof(**(r3))+(m4)*sizeof(**(r4))+(m5)*sizeof(**(r5))+(m6)*sizeof(**(r6))+(m7)*sizeof(**(r7))+6*(PETSC_MEMALIGN-1),r1)) : 0) \ 1082 || (*(void**)(r2) = PetscAddrAlign(*(r1)+(m1)),*(void**)(r3) = PetscAddrAlign(*(r2)+(m2)),*(void**)(r4) = PetscAddrAlign(*(r3)+(m3)),*(void**)(r5) = PetscAddrAlign(*(r4)+(m4)),*(void**)(r6) = PetscAddrAlign(*(r5)+(m5)),*(void**)(r7) = PetscAddrAlign(*(r6)+(m6)),0) \ 1083 || (!(m1) ? (*(r1) = 0,0) : 0) || (!(m2) ? (*(r2) = 0,0) : 0) || (!(m3) ? (*(r3) = 0,0) : 0) || (!(m4) ? (*(r4) = 0,0) : 0) || (!(m5) ? (*(r5) = 0,0) : 0) || (!(m6) ? (*(r6) = 0,0) : 0) || (!(m7) ? (*(r7) = 0,0) : 0)) 1084 #endif 1085 1086 /*MC 1087 PetscCalloc7 - Allocates 7 cleared (zeroed) arrays of memory, all aligned to PETSC_MEMALIGN 1088 1089 Synopsis: 1090 #include <petscsys.h> 1091 PetscErrorCode PetscCalloc7(size_t m1,type **r1,size_t m2,type **r2,size_t m3,type **r3,size_t m4,type **r4,size_t m5,type **r5,size_t m6,type **r6,size_t m7,type **r7) 1092 1093 Not Collective 1094 1095 Input Parameter: 1096 + m1 - number of elements to allocate in 1st chunk (may be zero) 1097 . m2 - number of elements to allocate in 2nd chunk (may be zero) 1098 . m3 - number of elements to allocate in 3rd chunk (may be zero) 1099 . m4 - number of elements to allocate in 4th chunk (may be zero) 1100 . m5 - number of elements to allocate in 5th chunk (may be zero) 1101 . m6 - number of elements to allocate in 6th chunk (may be zero) 1102 - m7 - number of elements to allocate in 7th chunk (may be zero) 1103 1104 Output Parameter: 1105 + r1 - memory allocated in first chunk 1106 . r2 - memory allocated in second chunk 1107 . r3 - memory allocated in third chunk 1108 . r4 - memory allocated in fourth chunk 1109 . r5 - memory allocated in fifth chunk 1110 . r6 - memory allocated in sixth chunk 1111 - r7 - memory allocated in seventh chunk 1112 1113 Level: developer 1114 1115 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscMalloc7(), PetscFree7() 1116 1117 Concepts: memory allocation 1118 M*/ 1119 #define PetscCalloc7(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5,m6,r6,m7,r7) \ 1120 (PetscMalloc7(m1,r1,m2,r2,m3,r3,m4,r4,m5,r5,m6,r6,m7,r7) \ 1121 || PetscMemzero(*(r1),(m1)*sizeof(**(r1))) || PetscMemzero(*(r2),(m2)*sizeof(**(r2))) || PetscMemzero(*(r3),(m3)*sizeof(**(r3))) \ 1122 || PetscMemzero(*(r4),(m4)*sizeof(**(r4))) || PetscMemzero(*(r5),(m5)*sizeof(**(r5))) || PetscMemzero(*(r6),(m6)*sizeof(**(r6))) \ 1123 || PetscMemzero(*(r7),(m7)*sizeof(**(r7)))) 1124 1125 /*MC 1126 PetscNew - Allocates memory of a particular type, zeros the memory! Aligned to PETSC_MEMALIGN 1127 1128 Synopsis: 1129 #include <petscsys.h> 1130 PetscErrorCode PetscNew(type **result) 1131 1132 Not Collective 1133 1134 Output Parameter: 1135 . result - memory allocated, sized to match pointer type 1136 1137 Level: beginner 1138 1139 .seealso: PetscFree(), PetscMalloc(), PetscNewLog() 1140 1141 Concepts: memory allocation 1142 1143 M*/ 1144 #define PetscNew(b) PetscCalloc1(1,(b)) 1145 1146 /*MC 1147 PetscNewLog - Allocates memory of a type matching pointer, zeros the memory! Aligned to PETSC_MEMALIGN. Associates the memory allocated 1148 with the given object using PetscLogObjectMemory(). 1149 1150 Synopsis: 1151 #include <petscsys.h> 1152 PetscErrorCode PetscNewLog(PetscObject obj,type **result) 1153 1154 Not Collective 1155 1156 Input Parameter: 1157 . obj - object memory is logged to 1158 1159 Output Parameter: 1160 . result - memory allocated, sized to match pointer type 1161 1162 Level: developer 1163 1164 .seealso: PetscFree(), PetscMalloc(), PetscNew(), PetscLogObjectMemory() 1165 1166 Concepts: memory allocation 1167 1168 M*/ 1169 #define PetscNewLog(o,b) (PetscNew((b)) || PetscLogObjectMemory((PetscObject)o,sizeof(**(b)))) 1170 1171 /*MC 1172 PetscFree - Frees memory 1173 1174 Synopsis: 1175 #include <petscsys.h> 1176 PetscErrorCode PetscFree(void *memory) 1177 1178 Not Collective 1179 1180 Input Parameter: 1181 . memory - memory to free (the pointer is ALWAYS set to 0 upon sucess) 1182 1183 Level: beginner 1184 1185 Notes: 1186 Memory must have been obtained with PetscNew() or PetscMalloc(). 1187 It is safe to call PetscFree() on a NULL pointer. 1188 1189 .seealso: PetscNew(), PetscMalloc(), PetscFreeVoid() 1190 1191 Concepts: memory allocation 1192 1193 M*/ 1194 #define PetscFree(a) ((*PetscTrFree)((void*)(a),__LINE__,PETSC_FUNCTION_NAME,__FILE__) || ((a) = 0,0)) 1195 1196 /*MC 1197 PetscFreeVoid - Frees memory 1198 1199 Synopsis: 1200 #include <petscsys.h> 1201 void PetscFreeVoid(void *memory) 1202 1203 Not Collective 1204 1205 Input Parameter: 1206 . memory - memory to free 1207 1208 Level: beginner 1209 1210 Notes: This is different from PetscFree() in that no error code is returned 1211 1212 .seealso: PetscFree(), PetscNew(), PetscMalloc() 1213 1214 Concepts: memory allocation 1215 1216 M*/ 1217 #define PetscFreeVoid(a) ((*PetscTrFree)((a),__LINE__,PETSC_FUNCTION_NAME,__FILE__),(a) = 0) 1218 1219 1220 /*MC 1221 PetscFree2 - Frees 2 chunks of memory obtained with PetscMalloc2() 1222 1223 Synopsis: 1224 #include <petscsys.h> 1225 PetscErrorCode PetscFree2(void *memory1,void *memory2) 1226 1227 Not Collective 1228 1229 Input Parameter: 1230 + memory1 - memory to free 1231 - memory2 - 2nd memory to free 1232 1233 Level: developer 1234 1235 Notes: Memory must have been obtained with PetscMalloc2() 1236 1237 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree() 1238 1239 Concepts: memory allocation 1240 1241 M*/ 1242 #if !defined(PETSC_USE_MALLOC_COALESCED) 1243 #define PetscFree2(m1,m2) (PetscFree(m2) || PetscFree(m1)) 1244 #else 1245 #define PetscFree2(m1,m2) ((m1) ? ((m2)=0,PetscFree(m1)) : ((m1)=0,PetscFree(m2))) 1246 #endif 1247 1248 /*MC 1249 PetscFree3 - Frees 3 chunks of memory obtained with PetscMalloc3() 1250 1251 Synopsis: 1252 #include <petscsys.h> 1253 PetscErrorCode PetscFree3(void *memory1,void *memory2,void *memory3) 1254 1255 Not Collective 1256 1257 Input Parameter: 1258 + memory1 - memory to free 1259 . memory2 - 2nd memory to free 1260 - memory3 - 3rd memory to free 1261 1262 Level: developer 1263 1264 Notes: Memory must have been obtained with PetscMalloc3() 1265 1266 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3() 1267 1268 Concepts: memory allocation 1269 1270 M*/ 1271 #if !defined(PETSC_USE_MALLOC_COALESCED) 1272 #define PetscFree3(m1,m2,m3) (PetscFree(m3) || PetscFree(m2) || PetscFree(m1)) 1273 #else 1274 #define PetscFree3(m1,m2,m3) ((m1) ? ((m3)=0,(m2)=0,PetscFree(m1)) : ((m2) ? ((m3)=0,(m1)=0,PetscFree(m2)) : ((m2)=0,(m1)=0,PetscFree(m3)))) 1275 #endif 1276 1277 /*MC 1278 PetscFree4 - Frees 4 chunks of memory obtained with PetscMalloc4() 1279 1280 Synopsis: 1281 #include <petscsys.h> 1282 PetscErrorCode PetscFree4(void *m1,void *m2,void *m3,void *m4) 1283 1284 Not Collective 1285 1286 Input Parameter: 1287 + m1 - memory to free 1288 . m2 - 2nd memory to free 1289 . m3 - 3rd memory to free 1290 - m4 - 4th memory to free 1291 1292 Level: developer 1293 1294 Notes: Memory must have been obtained with PetscMalloc4() 1295 1296 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4() 1297 1298 Concepts: memory allocation 1299 1300 M*/ 1301 #if !defined(PETSC_USE_MALLOC_COALESCED) 1302 #define PetscFree4(m1,m2,m3,m4) (PetscFree(m4) || PetscFree(m3) || PetscFree(m2) || PetscFree(m1)) 1303 #else 1304 #define PetscFree4(m1,m2,m3,m4) ((m1) ? ((m4)=0,(m3)=0,(m2)=0,PetscFree(m1)) : ((m2) ? ((m4)=0,(m3)=0,(m1)=0,PetscFree(m2)) : ((m3) ? ((m4)=0,(m2)=0,(m1)=0,PetscFree(m3)) : ((m3)=0,(m2)=0,(m1)=0,PetscFree(m4))))) 1305 #endif 1306 1307 /*MC 1308 PetscFree5 - Frees 5 chunks of memory obtained with PetscMalloc5() 1309 1310 Synopsis: 1311 #include <petscsys.h> 1312 PetscErrorCode PetscFree5(void *m1,void *m2,void *m3,void *m4,void *m5) 1313 1314 Not Collective 1315 1316 Input Parameter: 1317 + m1 - memory to free 1318 . m2 - 2nd memory to free 1319 . m3 - 3rd memory to free 1320 . m4 - 4th memory to free 1321 - m5 - 5th memory to free 1322 1323 Level: developer 1324 1325 Notes: Memory must have been obtained with PetscMalloc5() 1326 1327 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4(), PetscMalloc5() 1328 1329 Concepts: memory allocation 1330 1331 M*/ 1332 #if !defined(PETSC_USE_MALLOC_COALESCED) 1333 #define PetscFree5(m1,m2,m3,m4,m5) (PetscFree(m5) || PetscFree(m4) || PetscFree(m3) || PetscFree(m2) || PetscFree(m1)) 1334 #else 1335 #define PetscFree5(m1,m2,m3,m4,m5) ((m1) ? ((m5)=0,(m4)=0,(m3)=0,(m2)=0,PetscFree(m1)) : ((m2) ? ((m5)=0,(m4)=0,(m3)=0,(m1)=0,PetscFree(m2)) : ((m3) ? ((m5)=0,(m4)=0,(m2)=0,(m1)=0,PetscFree(m3)) : \ 1336 ((m4) ? ((m5)=0,(m3)=0,(m2)=0,(m1)=0,PetscFree(m4)) : ((m4)=0,(m3)=0,(m2)=0,(m1)=0,PetscFree(m5)))))) 1337 #endif 1338 1339 1340 /*MC 1341 PetscFree6 - Frees 6 chunks of memory obtained with PetscMalloc6() 1342 1343 Synopsis: 1344 #include <petscsys.h> 1345 PetscErrorCode PetscFree6(void *m1,void *m2,void *m3,void *m4,void *m5,void *m6) 1346 1347 Not Collective 1348 1349 Input Parameter: 1350 + m1 - memory to free 1351 . m2 - 2nd memory to free 1352 . m3 - 3rd memory to free 1353 . m4 - 4th memory to free 1354 . m5 - 5th memory to free 1355 - m6 - 6th memory to free 1356 1357 1358 Level: developer 1359 1360 Notes: Memory must have been obtained with PetscMalloc6() 1361 1362 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4(), PetscMalloc5(), PetscMalloc6() 1363 1364 Concepts: memory allocation 1365 1366 M*/ 1367 #if !defined(PETSC_USE_MALLOC_COALESCED) 1368 #define PetscFree6(m1,m2,m3,m4,m5,m6) (PetscFree(m6) || PetscFree(m5) || PetscFree(m4) || PetscFree(m3) || PetscFree(m2) || PetscFree(m1)) 1369 #else 1370 #define PetscFree6(m1,m2,m3,m4,m5,m6) ((m1) ? ((m6)=0,(m5)=0,(m4)=0,(m3)=0,(m2)=0,PetscFree(m1)) : ((m2) ? ((m6)=0,(m5)=0,(m4)=0,(m3)=0,(m1)=0,PetscFree(m2)) : \ 1371 ((m3) ? ((m6)=0,(m5)=0,(m4)=0,(m2)=0,(m1)=0,PetscFree(m3)) : ((m4) ? ((m6)=0,(m5)=0,(m3)=0,(m2)=0,(m1)=0,PetscFree(m4)) : \ 1372 ((m5) ? ((m6)=0,(m4)=0,(m3)=0,(m2)=0,(m1)=0,PetscFree(m5)) : ((m5)=0,(m4)=0,(m3)=0,(m2)=0,(m1)=0,PetscFree(m6))))))) 1373 #endif 1374 1375 /*MC 1376 PetscFree7 - Frees 7 chunks of memory obtained with PetscMalloc7() 1377 1378 Synopsis: 1379 #include <petscsys.h> 1380 PetscErrorCode PetscFree7(void *m1,void *m2,void *m3,void *m4,void *m5,void *m6,void *m7) 1381 1382 Not Collective 1383 1384 Input Parameter: 1385 + m1 - memory to free 1386 . m2 - 2nd memory to free 1387 . m3 - 3rd memory to free 1388 . m4 - 4th memory to free 1389 . m5 - 5th memory to free 1390 . m6 - 6th memory to free 1391 - m7 - 7th memory to free 1392 1393 1394 Level: developer 1395 1396 Notes: Memory must have been obtained with PetscMalloc7() 1397 1398 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4(), PetscMalloc5(), PetscMalloc6(), 1399 PetscMalloc7() 1400 1401 Concepts: memory allocation 1402 1403 M*/ 1404 #if !defined(PETSC_USE_MALLOC_COALESCED) 1405 #define PetscFree7(m1,m2,m3,m4,m5,m6,m7) (PetscFree(m7) || PetscFree(m6) || PetscFree(m5) || PetscFree(m4) || PetscFree(m3) || PetscFree(m2) || PetscFree(m1)) 1406 #else 1407 #define PetscFree7(m1,m2,m3,m4,m5,m6,m7) ((m1) ? ((m7)=0,(m6)=0,(m5)=0,(m4)=0,(m3)=0,(m2)=0,PetscFree(m1)) : ((m2) ? ((m7)=0,(m6)=0,(m5)=0,(m4)=0,(m3)=0,(m1)=0,PetscFree(m2)) : \ 1408 ((m3) ? ((m7)=0,(m6)=0,(m5)=0,(m4)=0,(m2)=0,(m1)=0,PetscFree(m3)) : ((m4) ? ((m7)=0,(m6)=0,(m5)=0,(m3)=0,(m2)=0,(m1)=0,PetscFree(m4)) : \ 1409 ((m5) ? ((m7)=0,(m6)=0,(m4)=0,(m3)=0,(m2)=0,(m1)=0,PetscFree(m5)) : ((m6) ? ((m7)=0,(m5)=0,(m4)=0,(m3)=0,(m2)=0,(m1)=0,PetscFree(m6)) : \ 1410 ((m6)=0,(m5)=0,(m4)=0,(m3)=0,(m2)=0,(m1)=0,PetscFree(m7)))))))) 1411 #endif 1412 1413 PETSC_EXTERN PetscErrorCode (*PetscTrMalloc)(size_t,int,const char[],const char[],void**); 1414 PETSC_EXTERN PetscErrorCode (*PetscTrFree)(void*,int,const char[],const char[]); 1415 PETSC_EXTERN PetscErrorCode (*PetscTrRealloc)(size_t,int,const char[],const char[],void**); 1416 PETSC_EXTERN PetscErrorCode PetscMallocSet(PetscErrorCode (*)(size_t,int,const char[],const char[],void**),PetscErrorCode (*)(void*,int,const char[],const char[])); 1417 PETSC_EXTERN PetscErrorCode PetscMallocClear(void); 1418 1419 /* 1420 PetscLogDouble variables are used to contain double precision numbers 1421 that are not used in the numerical computations, but rather in logging, 1422 timing etc. 1423 */ 1424 typedef double PetscLogDouble; 1425 #define MPIU_PETSCLOGDOUBLE MPI_DOUBLE 1426 1427 /* 1428 Routines for tracing memory corruption/bleeding with default PETSc memory allocation 1429 */ 1430 PETSC_EXTERN PetscErrorCode PetscMallocDump(FILE *); 1431 PETSC_EXTERN PetscErrorCode PetscMallocDumpLog(FILE *); 1432 PETSC_EXTERN PetscErrorCode PetscMallocGetCurrentUsage(PetscLogDouble *); 1433 PETSC_EXTERN PetscErrorCode PetscMallocGetMaximumUsage(PetscLogDouble *); 1434 PETSC_EXTERN PetscErrorCode PetscMallocDebug(PetscBool); 1435 PETSC_EXTERN PetscErrorCode PetscMallocGetDebug(PetscBool*); 1436 PETSC_EXTERN PetscErrorCode PetscMallocValidate(int,const char[],const char[]); 1437 PETSC_EXTERN PetscErrorCode PetscMallocSetDumpLog(void); 1438 PETSC_EXTERN PetscErrorCode PetscMallocSetDumpLogThreshold(PetscLogDouble); 1439 PETSC_EXTERN PetscErrorCode PetscMallocGetDumpLog(PetscBool*); 1440 1441 /*E 1442 PetscDataType - Used for handling different basic data types. 1443 1444 Level: beginner 1445 1446 Developer comment: It would be nice if we could always just use MPI Datatypes, why can we not? 1447 1448 .seealso: PetscBinaryRead(), PetscBinaryWrite(), PetscDataTypeToMPIDataType(), 1449 PetscDataTypeGetSize() 1450 1451 E*/ 1452 typedef enum {PETSC_INT = 0,PETSC_DOUBLE = 1,PETSC_COMPLEX = 2, PETSC_LONG = 3 ,PETSC_SHORT = 4,PETSC_FLOAT = 5, 1453 PETSC_CHAR = 6,PETSC_BIT_LOGICAL = 7,PETSC_ENUM = 8,PETSC_BOOL=9, PETSC___FLOAT128 = 10,PETSC_OBJECT = 11, PETSC_FUNCTION = 12, PETSC_STRING = 12, PETSC_STRUCT, PETSC_DATATYPE_UNKNOWN} PetscDataType; 1454 PETSC_EXTERN const char *const PetscDataTypes[]; 1455 1456 #if defined(PETSC_USE_COMPLEX) 1457 #define PETSC_SCALAR PETSC_COMPLEX 1458 #else 1459 #if defined(PETSC_USE_REAL_SINGLE) 1460 #define PETSC_SCALAR PETSC_FLOAT 1461 #elif defined(PETSC_USE_REAL___FLOAT128) 1462 #define PETSC_SCALAR PETSC___FLOAT128 1463 #else 1464 #define PETSC_SCALAR PETSC_DOUBLE 1465 #endif 1466 #endif 1467 #if defined(PETSC_USE_REAL_SINGLE) 1468 #define PETSC_REAL PETSC_FLOAT 1469 #elif defined(PETSC_USE_REAL___FLOAT128) 1470 #define PETSC_REAL PETSC___FLOAT128 1471 #else 1472 #define PETSC_REAL PETSC_DOUBLE 1473 #endif 1474 #define PETSC_FORTRANADDR PETSC_LONG 1475 1476 PETSC_EXTERN PetscErrorCode PetscDataTypeToMPIDataType(PetscDataType,MPI_Datatype*); 1477 PETSC_EXTERN PetscErrorCode PetscMPIDataTypeToPetscDataType(MPI_Datatype,PetscDataType*); 1478 PETSC_EXTERN PetscErrorCode PetscDataTypeGetSize(PetscDataType,size_t*); 1479 PETSC_EXTERN PetscErrorCode PetscDataTypeFromString(const char*,PetscDataType*,PetscBool*); 1480 1481 /* 1482 Basic memory and string operations. These are usually simple wrappers 1483 around the basic Unix system calls, but a few of them have additional 1484 functionality and/or error checking. 1485 */ 1486 PETSC_EXTERN PetscErrorCode PetscBitMemcpy(void*,PetscInt,const void*,PetscInt,PetscInt,PetscDataType); 1487 PETSC_EXTERN PetscErrorCode PetscMemmove(void*,void *,size_t); 1488 PETSC_EXTERN PetscErrorCode PetscMemcmp(const void*,const void*,size_t,PetscBool *); 1489 PETSC_EXTERN PetscErrorCode PetscStrlen(const char[],size_t*); 1490 PETSC_EXTERN PetscErrorCode PetscStrToArray(const char[],char,int*,char ***); 1491 PETSC_EXTERN PetscErrorCode PetscStrToArrayDestroy(int,char **); 1492 PETSC_EXTERN PetscErrorCode PetscStrcmp(const char[],const char[],PetscBool *); 1493 PETSC_EXTERN PetscErrorCode PetscStrgrt(const char[],const char[],PetscBool *); 1494 PETSC_EXTERN PetscErrorCode PetscStrcasecmp(const char[],const char[],PetscBool *); 1495 PETSC_EXTERN PetscErrorCode PetscStrncmp(const char[],const char[],size_t,PetscBool *); 1496 PETSC_EXTERN PetscErrorCode PetscStrcpy(char[],const char[]); 1497 PETSC_EXTERN PetscErrorCode PetscStrcat(char[],const char[]); 1498 PETSC_EXTERN PetscErrorCode PetscStrncat(char[],const char[],size_t); 1499 PETSC_EXTERN PetscErrorCode PetscStrncpy(char[],const char[],size_t); 1500 PETSC_EXTERN PetscErrorCode PetscStrchr(const char[],char,char *[]); 1501 PETSC_EXTERN PetscErrorCode PetscStrtolower(char[]); 1502 PETSC_EXTERN PetscErrorCode PetscStrtoupper(char[]); 1503 PETSC_EXTERN PetscErrorCode PetscStrrchr(const char[],char,char *[]); 1504 PETSC_EXTERN PetscErrorCode PetscStrstr(const char[],const char[],char *[]); 1505 PETSC_EXTERN PetscErrorCode PetscStrrstr(const char[],const char[],char *[]); 1506 PETSC_EXTERN PetscErrorCode PetscStrendswith(const char[],const char[],PetscBool*); 1507 PETSC_EXTERN PetscErrorCode PetscStrbeginswith(const char[],const char[],PetscBool*); 1508 PETSC_EXTERN PetscErrorCode PetscStrendswithwhich(const char[],const char *const*,PetscInt*); 1509 PETSC_EXTERN PetscErrorCode PetscStrallocpy(const char[],char *[]); 1510 PETSC_EXTERN PetscErrorCode PetscStrArrayallocpy(const char *const*,char***); 1511 PETSC_EXTERN PetscErrorCode PetscStrArrayDestroy(char***); 1512 PETSC_EXTERN PetscErrorCode PetscStrNArrayallocpy(PetscInt,const char *const*,char***); 1513 PETSC_EXTERN PetscErrorCode PetscStrNArrayDestroy(PetscInt,char***); 1514 PETSC_EXTERN PetscErrorCode PetscStrreplace(MPI_Comm,const char[],char[],size_t); 1515 1516 PETSC_EXTERN void PetscStrcmpNoError(const char[],const char[],PetscBool *); 1517 1518 /*S 1519 PetscToken - 'Token' used for managing tokenizing strings 1520 1521 Level: intermediate 1522 1523 .seealso: PetscTokenCreate(), PetscTokenFind(), PetscTokenDestroy() 1524 S*/ 1525 typedef struct _p_PetscToken* PetscToken; 1526 1527 PETSC_EXTERN PetscErrorCode PetscTokenCreate(const char[],const char,PetscToken*); 1528 PETSC_EXTERN PetscErrorCode PetscTokenFind(PetscToken,char *[]); 1529 PETSC_EXTERN PetscErrorCode PetscTokenDestroy(PetscToken*); 1530 1531 PETSC_EXTERN PetscErrorCode PetscEListFind(PetscInt,const char *const*,const char*,PetscInt*,PetscBool*); 1532 PETSC_EXTERN PetscErrorCode PetscEnumFind(const char *const*,const char*,PetscEnum*,PetscBool*); 1533 1534 /* 1535 These are MPI operations for MPI_Allreduce() etc 1536 */ 1537 PETSC_EXTERN MPI_Op MPIU_MAXSUM_OP; 1538 #if (defined(PETSC_HAVE_COMPLEX) && !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX)) || defined(PETSC_USE_REAL___FLOAT128) 1539 PETSC_EXTERN MPI_Op MPIU_SUM; 1540 #else 1541 #define MPIU_SUM MPI_SUM 1542 #endif 1543 #if defined(PETSC_USE_REAL___FLOAT128) 1544 PETSC_EXTERN MPI_Op MPIU_MAX; 1545 PETSC_EXTERN MPI_Op MPIU_MIN; 1546 #else 1547 #define MPIU_MAX MPI_MAX 1548 #define MPIU_MIN MPI_MIN 1549 #endif 1550 PETSC_EXTERN PetscErrorCode PetscMaxSum(MPI_Comm,const PetscInt[],PetscInt*,PetscInt*); 1551 1552 PETSC_EXTERN PetscErrorCode MPIULong_Send(void*,PetscInt,MPI_Datatype,PetscMPIInt,PetscMPIInt,MPI_Comm); 1553 PETSC_EXTERN PetscErrorCode MPIULong_Recv(void*,PetscInt,MPI_Datatype,PetscMPIInt,PetscMPIInt,MPI_Comm); 1554 1555 /*S 1556 PetscObject - any PETSc object, PetscViewer, Mat, Vec, KSP etc 1557 1558 Level: beginner 1559 1560 Note: This is the base class from which all PETSc objects are derived from. 1561 1562 .seealso: PetscObjectDestroy(), PetscObjectView(), PetscObjectGetName(), PetscObjectSetName(), PetscObjectReference(), PetscObjectDereference() 1563 S*/ 1564 typedef struct _p_PetscObject* PetscObject; 1565 1566 /*MC 1567 PetscObjectId - unique integer Id for a PetscObject 1568 1569 Level: developer 1570 1571 Notes: Unlike pointer values, object ids are never reused. 1572 1573 .seealso: PetscObjectState, PetscObjectGetId() 1574 M*/ 1575 #if defined(PETSC_USING_F90) && !defined(PETSC_USE_FORTRANKIND) /* compaq F90 */ 1576 typedef int PetscObjectId; 1577 #else 1578 typedef PetscInt64 PetscObjectId; 1579 #endif 1580 1581 /*MC 1582 PetscObjectState - integer state for a PetscObject 1583 1584 Level: developer 1585 1586 Notes: 1587 Object state is always-increasing and (for objects that track state) can be used to determine if an object has 1588 changed since the last time you interacted with it. It is 64-bit so that it will not overflow for a very long time. 1589 1590 .seealso: PetscObjectId, PetscObjectStateGet(), PetscObjectStateIncrease(), PetscObjectStateSet() 1591 M*/ 1592 #if defined(PETSC_USING_F90) && !defined(PETSC_USE_FORTRANKIND) /* compaq F90 */ 1593 typedef int PetscObjectState; 1594 #else 1595 typedef PetscInt64 PetscObjectState; 1596 #endif 1597 1598 /*S 1599 PetscFunctionList - Linked list of functions, possibly stored in dynamic libraries, accessed 1600 by string name 1601 1602 Level: advanced 1603 1604 .seealso: PetscFunctionListAdd(), PetscFunctionListDestroy(), PetscOpFlist 1605 S*/ 1606 typedef struct _n_PetscFunctionList *PetscFunctionList; 1607 1608 /*E 1609 PetscFileMode - Access mode for a file. 1610 1611 Level: beginner 1612 1613 $ FILE_MODE_READ - open a file at its beginning for reading 1614 $ FILE_MODE_WRITE - open a file at its beginning for writing (will create if the file does not exist) 1615 $ FILE_MODE_APPEND - open a file at end for writing 1616 $ FILE_MODE_UPDATE - open a file for updating, meaning for reading and writing 1617 $ FILE_MODE_APPEND_UPDATE - open a file for updating, meaning for reading and writing, at the end 1618 1619 .seealso: PetscViewerFileSetMode() 1620 E*/ 1621 typedef enum {FILE_MODE_READ, FILE_MODE_WRITE, FILE_MODE_APPEND, FILE_MODE_UPDATE, FILE_MODE_APPEND_UPDATE} PetscFileMode; 1622 extern const char *const PetscFileModes[]; 1623 1624 /* 1625 Defines PETSc error handling. 1626 */ 1627 #include <petscerror.h> 1628 1629 #define PETSC_SMALLEST_CLASSID 1211211 1630 PETSC_EXTERN PetscClassId PETSC_LARGEST_CLASSID; 1631 PETSC_EXTERN PetscClassId PETSC_OBJECT_CLASSID; 1632 PETSC_EXTERN PetscErrorCode PetscClassIdRegister(const char[],PetscClassId *); 1633 1634 /* 1635 Routines that get memory usage information from the OS 1636 */ 1637 PETSC_EXTERN PetscErrorCode PetscMemoryGetCurrentUsage(PetscLogDouble *); 1638 PETSC_EXTERN PetscErrorCode PetscMemoryGetMaximumUsage(PetscLogDouble *); 1639 PETSC_EXTERN PetscErrorCode PetscMemorySetGetMaximumUsage(void); 1640 PETSC_EXTERN PetscErrorCode PetscMemoryTrace(const char[]); 1641 1642 PETSC_EXTERN PetscErrorCode PetscInfoAllow(PetscBool ,const char []); 1643 PETSC_EXTERN PetscErrorCode PetscSleep(PetscReal); 1644 1645 /* 1646 Initialization of PETSc 1647 */ 1648 PETSC_EXTERN PetscErrorCode PetscInitialize(int*,char***,const char[],const char[]); 1649 PETSC_EXTERN PetscErrorCode PetscInitializeNoPointers(int,char**,const char[],const char[]); 1650 PETSC_EXTERN PetscErrorCode PetscInitializeNoArguments(void); 1651 PETSC_EXTERN PetscErrorCode PetscInitialized(PetscBool *); 1652 PETSC_EXTERN PetscErrorCode PetscFinalized(PetscBool *); 1653 PETSC_EXTERN PetscErrorCode PetscFinalize(void); 1654 PETSC_EXTERN PetscErrorCode PetscInitializeFortran(void); 1655 PETSC_EXTERN PetscErrorCode PetscGetArgs(int*,char ***); 1656 PETSC_EXTERN PetscErrorCode PetscGetArguments(char ***); 1657 PETSC_EXTERN PetscErrorCode PetscFreeArguments(char **); 1658 1659 PETSC_EXTERN PetscErrorCode PetscEnd(void); 1660 PETSC_EXTERN PetscErrorCode PetscSysInitializePackage(void); 1661 1662 PETSC_EXTERN PetscErrorCode PetscPythonInitialize(const char[],const char[]); 1663 PETSC_EXTERN PetscErrorCode PetscPythonFinalize(void); 1664 PETSC_EXTERN PetscErrorCode PetscPythonPrintError(void); 1665 PETSC_EXTERN PetscErrorCode PetscPythonMonitorSet(PetscObject,const char[]); 1666 1667 /* 1668 These are so that in extern C code we can caste function pointers to non-extern C 1669 function pointers. Since the regular C++ code expects its function pointers to be C++ 1670 */ 1671 PETSC_EXTERN_TYPEDEF typedef void (**PetscVoidStarFunction)(void); 1672 PETSC_EXTERN_TYPEDEF typedef void (*PetscVoidFunction)(void); 1673 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*PetscErrorCodeFunction)(void); 1674 1675 /* 1676 Functions that can act on any PETSc object. 1677 */ 1678 PETSC_EXTERN PetscErrorCode PetscObjectDestroy(PetscObject*); 1679 PETSC_EXTERN PetscErrorCode PetscObjectGetComm(PetscObject,MPI_Comm *); 1680 PETSC_EXTERN PetscErrorCode PetscObjectGetClassId(PetscObject,PetscClassId *); 1681 PETSC_EXTERN PetscErrorCode PetscObjectGetClassName(PetscObject,const char *[]); 1682 PETSC_EXTERN PetscErrorCode PetscObjectSetType(PetscObject,const char []); 1683 PETSC_EXTERN PetscErrorCode PetscObjectSetPrecision(PetscObject,PetscPrecision); 1684 PETSC_EXTERN PetscErrorCode PetscObjectGetType(PetscObject,const char *[]); 1685 PETSC_EXTERN PetscErrorCode PetscObjectSetName(PetscObject,const char[]); 1686 PETSC_EXTERN PetscErrorCode PetscObjectGetName(PetscObject,const char*[]); 1687 PETSC_EXTERN PetscErrorCode PetscObjectSetTabLevel(PetscObject,PetscInt); 1688 PETSC_EXTERN PetscErrorCode PetscObjectGetTabLevel(PetscObject,PetscInt*); 1689 PETSC_EXTERN PetscErrorCode PetscObjectIncrementTabLevel(PetscObject,PetscObject,PetscInt); 1690 PETSC_EXTERN PetscErrorCode PetscObjectReference(PetscObject); 1691 PETSC_EXTERN PetscErrorCode PetscObjectGetReference(PetscObject,PetscInt*); 1692 PETSC_EXTERN PetscErrorCode PetscObjectDereference(PetscObject); 1693 PETSC_EXTERN PetscErrorCode PetscObjectGetNewTag(PetscObject,PetscMPIInt *); 1694 PETSC_EXTERN PetscErrorCode PetscObjectCompose(PetscObject,const char[],PetscObject); 1695 PETSC_EXTERN PetscErrorCode PetscObjectRemoveReference(PetscObject,const char[]); 1696 PETSC_EXTERN PetscErrorCode PetscObjectQuery(PetscObject,const char[],PetscObject *); 1697 PETSC_EXTERN PetscErrorCode PetscObjectComposeFunction_Private(PetscObject,const char[],void (*)(void)); 1698 #define PetscObjectComposeFunction(a,b,d) PetscObjectComposeFunction_Private(a,b,(PetscVoidFunction)(d)) 1699 PETSC_EXTERN PetscErrorCode PetscObjectSetFromOptions(PetscObject); 1700 PETSC_EXTERN PetscErrorCode PetscObjectSetUp(PetscObject); 1701 PETSC_EXTERN PetscErrorCode PetscObjectSetPrintedOptions(PetscObject); 1702 PETSC_EXTERN PetscErrorCode PetscObjectInheritPrintedOptions(PetscObject,PetscObject); 1703 PETSC_EXTERN PetscErrorCode PetscCommGetNewTag(MPI_Comm,PetscMPIInt *); 1704 1705 #include <petscviewertypes.h> 1706 #include <petscoptions.h> 1707 1708 PETSC_EXTERN PetscErrorCode PetscObjectsListGetGlobalNumbering(MPI_Comm,PetscInt,PetscObject*,PetscInt*,PetscInt*); 1709 1710 PETSC_EXTERN PetscErrorCode PetscMemoryShowUsage(PetscViewer,const char[]); 1711 PETSC_EXTERN PetscErrorCode PetscMemoryView(PetscViewer,const char[]); 1712 PETSC_EXTERN PetscErrorCode PetscObjectPrintClassNamePrefixType(PetscObject,PetscViewer); 1713 PETSC_EXTERN PetscErrorCode PetscObjectView(PetscObject,PetscViewer); 1714 #define PetscObjectQueryFunction(obj,name,fptr) PetscObjectQueryFunction_Private((obj),(name),(PetscVoidFunction*)(fptr)) 1715 PETSC_EXTERN PetscErrorCode PetscObjectQueryFunction_Private(PetscObject,const char[],void (**)(void)); 1716 PETSC_EXTERN PetscErrorCode PetscObjectSetOptionsPrefix(PetscObject,const char[]); 1717 PETSC_EXTERN PetscErrorCode PetscObjectAppendOptionsPrefix(PetscObject,const char[]); 1718 PETSC_EXTERN PetscErrorCode PetscObjectPrependOptionsPrefix(PetscObject,const char[]); 1719 PETSC_EXTERN PetscErrorCode PetscObjectGetOptionsPrefix(PetscObject,const char*[]); 1720 PETSC_EXTERN PetscErrorCode PetscObjectChangeTypeName(PetscObject,const char[]); 1721 PETSC_EXTERN PetscErrorCode PetscObjectRegisterDestroy(PetscObject); 1722 PETSC_EXTERN PetscErrorCode PetscObjectRegisterDestroyAll(void); 1723 PETSC_EXTERN PetscErrorCode PetscObjectViewFromOptions(PetscObject,PetscObject,const char[]); 1724 PETSC_EXTERN PetscErrorCode PetscObjectName(PetscObject); 1725 PETSC_EXTERN PetscErrorCode PetscObjectTypeCompare(PetscObject,const char[],PetscBool *); 1726 PETSC_EXTERN PetscErrorCode PetscObjectTypeCompareAny(PetscObject,PetscBool*,const char[],...); 1727 PETSC_EXTERN PetscErrorCode PetscRegisterFinalize(PetscErrorCode (*)(void)); 1728 PETSC_EXTERN PetscErrorCode PetscRegisterFinalizeAll(void); 1729 1730 #if defined(PETSC_HAVE_SAWS) 1731 PETSC_EXTERN PetscErrorCode PetscSAWsBlock(void); 1732 PETSC_EXTERN PetscErrorCode PetscObjectSAWsViewOff(PetscObject); 1733 PETSC_EXTERN PetscErrorCode PetscObjectSAWsSetBlock(PetscObject,PetscBool); 1734 PETSC_EXTERN PetscErrorCode PetscObjectSAWsBlock(PetscObject); 1735 PETSC_EXTERN PetscErrorCode PetscObjectSAWsGrantAccess(PetscObject); 1736 PETSC_EXTERN PetscErrorCode PetscObjectSAWsTakeAccess(PetscObject); 1737 PETSC_EXTERN void PetscStackSAWsGrantAccess(void); 1738 PETSC_EXTERN void PetscStackSAWsTakeAccess(void); 1739 PETSC_EXTERN PetscErrorCode PetscStackViewSAWs(void); 1740 PETSC_EXTERN PetscErrorCode PetscStackSAWsViewOff(void); 1741 1742 #else 1743 #define PetscSAWsBlock() 0 1744 #define PetscObjectSAWsViewOff(obj) 0 1745 #define PetscObjectSAWsSetBlock(obj,flg) 0 1746 #define PetscObjectSAWsBlock(obj) 0 1747 #define PetscObjectSAWsGrantAccess(obj) 0 1748 #define PetscObjectSAWsTakeAccess(obj) 0 1749 #define PetscStackViewSAWs() 0 1750 #define PetscStackSAWsViewOff() 0 1751 #define PetscStackSAWsTakeAccess() 1752 #define PetscStackSAWsGrantAccess() 1753 1754 #endif 1755 1756 typedef void* PetscDLHandle; 1757 typedef enum {PETSC_DL_DECIDE=0,PETSC_DL_NOW=1,PETSC_DL_LOCAL=2} PetscDLMode; 1758 PETSC_EXTERN PetscErrorCode PetscDLOpen(const char[],PetscDLMode,PetscDLHandle *); 1759 PETSC_EXTERN PetscErrorCode PetscDLClose(PetscDLHandle *); 1760 PETSC_EXTERN PetscErrorCode PetscDLSym(PetscDLHandle,const char[],void **); 1761 1762 #if defined(PETSC_USE_DEBUG) 1763 PETSC_EXTERN PetscErrorCode PetscMallocGetStack(void*,PetscStack**); 1764 #endif 1765 PETSC_EXTERN PetscErrorCode PetscObjectsDump(FILE*,PetscBool); 1766 1767 /*S 1768 PetscObjectList - Linked list of PETSc objects, each accessable by string name 1769 1770 Level: developer 1771 1772 Notes: Used by PetscObjectCompose() and PetscObjectQuery() 1773 1774 .seealso: PetscObjectListAdd(), PetscObjectListDestroy(), PetscObjectListFind(), PetscObjectCompose(), PetscObjectQuery(), PetscFunctionList 1775 S*/ 1776 typedef struct _n_PetscObjectList *PetscObjectList; 1777 1778 PETSC_EXTERN PetscErrorCode PetscObjectListDestroy(PetscObjectList*); 1779 PETSC_EXTERN PetscErrorCode PetscObjectListFind(PetscObjectList,const char[],PetscObject*); 1780 PETSC_EXTERN PetscErrorCode PetscObjectListReverseFind(PetscObjectList,PetscObject,char**,PetscBool*); 1781 PETSC_EXTERN PetscErrorCode PetscObjectListAdd(PetscObjectList *,const char[],PetscObject); 1782 PETSC_EXTERN PetscErrorCode PetscObjectListRemoveReference(PetscObjectList *,const char[]); 1783 PETSC_EXTERN PetscErrorCode PetscObjectListDuplicate(PetscObjectList,PetscObjectList *); 1784 1785 /* 1786 Dynamic library lists. Lists of names of routines in objects or in dynamic 1787 link libraries that will be loaded as needed. 1788 */ 1789 1790 #define PetscFunctionListAdd(list,name,fptr) PetscFunctionListAdd_Private((list),(name),(PetscVoidFunction)(fptr)) 1791 PETSC_EXTERN PetscErrorCode PetscFunctionListAdd_Private(PetscFunctionList*,const char[],void (*)(void)); 1792 PETSC_EXTERN PetscErrorCode PetscFunctionListDestroy(PetscFunctionList*); 1793 #define PetscFunctionListFind(list,name,fptr) PetscFunctionListFind_Private((list),(name),(PetscVoidFunction*)(fptr)) 1794 PETSC_EXTERN PetscErrorCode PetscFunctionListFind_Private(PetscFunctionList,const char[],void (**)(void)); 1795 PETSC_EXTERN PetscErrorCode PetscFunctionListPrintTypes(MPI_Comm,FILE*,const char[],const char[],const char[],const char[],PetscFunctionList,const char[]); 1796 PETSC_EXTERN PetscErrorCode PetscFunctionListDuplicate(PetscFunctionList,PetscFunctionList *); 1797 PETSC_EXTERN PetscErrorCode PetscFunctionListView(PetscFunctionList,PetscViewer); 1798 PETSC_EXTERN PetscErrorCode PetscFunctionListGet(PetscFunctionList,const char ***,int*); 1799 1800 /*S 1801 PetscDLLibrary - Linked list of dynamics libraries to search for functions 1802 1803 Level: advanced 1804 1805 .seealso: PetscDLLibraryOpen() 1806 S*/ 1807 typedef struct _n_PetscDLLibrary *PetscDLLibrary; 1808 PETSC_EXTERN PetscDLLibrary PetscDLLibrariesLoaded; 1809 PETSC_EXTERN PetscErrorCode PetscDLLibraryAppend(MPI_Comm,PetscDLLibrary *,const char[]); 1810 PETSC_EXTERN PetscErrorCode PetscDLLibraryPrepend(MPI_Comm,PetscDLLibrary *,const char[]); 1811 PETSC_EXTERN PetscErrorCode PetscDLLibrarySym(MPI_Comm,PetscDLLibrary *,const char[],const char[],void **); 1812 PETSC_EXTERN PetscErrorCode PetscDLLibraryPrintPath(PetscDLLibrary); 1813 PETSC_EXTERN PetscErrorCode PetscDLLibraryRetrieve(MPI_Comm,const char[],char *,size_t,PetscBool *); 1814 PETSC_EXTERN PetscErrorCode PetscDLLibraryOpen(MPI_Comm,const char[],PetscDLLibrary *); 1815 PETSC_EXTERN PetscErrorCode PetscDLLibraryClose(PetscDLLibrary); 1816 1817 /* 1818 Useful utility routines 1819 */ 1820 PETSC_EXTERN PetscErrorCode PetscSplitOwnership(MPI_Comm,PetscInt*,PetscInt*); 1821 PETSC_EXTERN PetscErrorCode PetscSplitOwnershipBlock(MPI_Comm,PetscInt,PetscInt*,PetscInt*); 1822 PETSC_EXTERN PetscErrorCode PetscSequentialPhaseBegin(MPI_Comm,PetscMPIInt); 1823 PETSC_EXTERN PetscErrorCode PetscSequentialPhaseEnd(MPI_Comm,PetscMPIInt); 1824 PETSC_EXTERN PetscErrorCode PetscBarrier(PetscObject); 1825 PETSC_EXTERN PetscErrorCode PetscMPIDump(FILE*); 1826 1827 /* 1828 PetscNot - negates a logical type value and returns result as a PetscBool 1829 1830 Notes: This is useful in cases like 1831 $ int *a; 1832 $ PetscBool flag = PetscNot(a) 1833 where !a would not return a PetscBool because we cannot provide a cast from int to PetscBool in C. 1834 */ 1835 #define PetscNot(a) ((a) ? PETSC_FALSE : PETSC_TRUE) 1836 1837 /*MC 1838 PetscHelpPrintf - Prints help messages. 1839 1840 Synopsis: 1841 #include <petscsys.h> 1842 PetscErrorCode (*PetscHelpPrintf)(const char format[],...); 1843 1844 Not Collective 1845 1846 Input Parameters: 1847 . format - the usual printf() format string 1848 1849 Level: developer 1850 1851 Fortran Note: 1852 This routine is not supported in Fortran. 1853 1854 Concepts: help messages^printing 1855 Concepts: printing^help messages 1856 1857 .seealso: PetscFPrintf(), PetscSynchronizedPrintf(), PetscErrorPrintf() 1858 M*/ 1859 PETSC_EXTERN PetscErrorCode (*PetscHelpPrintf)(MPI_Comm,const char[],...); 1860 1861 /* 1862 Defines PETSc profiling. 1863 */ 1864 #include <petsclog.h> 1865 1866 /* 1867 Simple PETSc parallel IO for ASCII printing 1868 */ 1869 PETSC_EXTERN PetscErrorCode PetscFixFilename(const char[],char[]); 1870 PETSC_EXTERN PetscErrorCode PetscFOpen(MPI_Comm,const char[],const char[],FILE**); 1871 PETSC_EXTERN PetscErrorCode PetscFClose(MPI_Comm,FILE*); 1872 PETSC_EXTERN PetscErrorCode PetscFPrintf(MPI_Comm,FILE*,const char[],...); 1873 PETSC_EXTERN PetscErrorCode PetscPrintf(MPI_Comm,const char[],...); 1874 PETSC_EXTERN PetscErrorCode PetscSNPrintf(char*,size_t,const char [],...); 1875 PETSC_EXTERN PetscErrorCode PetscSNPrintfCount(char*,size_t,const char [],size_t*,...); 1876 1877 PETSC_EXTERN PetscErrorCode PetscErrorPrintfDefault(const char [],...); 1878 PETSC_EXTERN PetscErrorCode PetscErrorPrintfNone(const char [],...); 1879 PETSC_EXTERN PetscErrorCode PetscHelpPrintfDefault(MPI_Comm,const char [],...); 1880 1881 #if defined(PETSC_HAVE_POPEN) 1882 PETSC_EXTERN PetscErrorCode PetscPOpen(MPI_Comm,const char[],const char[],const char[],FILE **); 1883 PETSC_EXTERN PetscErrorCode PetscPClose(MPI_Comm,FILE*,int*); 1884 PETSC_EXTERN PetscErrorCode PetscPOpenSetMachine(const char[]); 1885 #endif 1886 1887 PETSC_EXTERN PetscErrorCode PetscSynchronizedPrintf(MPI_Comm,const char[],...); 1888 PETSC_EXTERN PetscErrorCode PetscSynchronizedFPrintf(MPI_Comm,FILE*,const char[],...); 1889 PETSC_EXTERN PetscErrorCode PetscSynchronizedFlush(MPI_Comm,FILE*); 1890 PETSC_EXTERN PetscErrorCode PetscSynchronizedFGets(MPI_Comm,FILE*,size_t,char[]); 1891 PETSC_EXTERN PetscErrorCode PetscStartMatlab(MPI_Comm,const char[],const char[],FILE**); 1892 PETSC_EXTERN PetscErrorCode PetscStartJava(MPI_Comm,const char[],const char[],FILE**); 1893 PETSC_EXTERN PetscErrorCode PetscGetPetscDir(const char*[]); 1894 1895 PETSC_EXTERN PetscErrorCode PetscPopUpSelect(MPI_Comm,const char*,const char*,int,const char**,int*); 1896 1897 /*S 1898 PetscContainer - Simple PETSc object that contains a pointer to any required data 1899 1900 Level: advanced 1901 1902 .seealso: PetscObject, PetscContainerCreate() 1903 S*/ 1904 PETSC_EXTERN PetscClassId PETSC_CONTAINER_CLASSID; 1905 typedef struct _p_PetscContainer* PetscContainer; 1906 PETSC_EXTERN PetscErrorCode PetscContainerGetPointer(PetscContainer,void **); 1907 PETSC_EXTERN PetscErrorCode PetscContainerSetPointer(PetscContainer,void *); 1908 PETSC_EXTERN PetscErrorCode PetscContainerDestroy(PetscContainer*); 1909 PETSC_EXTERN PetscErrorCode PetscContainerCreate(MPI_Comm,PetscContainer *); 1910 PETSC_EXTERN PetscErrorCode PetscContainerSetUserDestroy(PetscContainer, PetscErrorCode (*)(void*)); 1911 1912 /* 1913 For use in debuggers 1914 */ 1915 PETSC_EXTERN PetscMPIInt PetscGlobalRank; 1916 PETSC_EXTERN PetscMPIInt PetscGlobalSize; 1917 PETSC_EXTERN PetscErrorCode PetscIntView(PetscInt,const PetscInt[],PetscViewer); 1918 PETSC_EXTERN PetscErrorCode PetscRealView(PetscInt,const PetscReal[],PetscViewer); 1919 PETSC_EXTERN PetscErrorCode PetscScalarView(PetscInt,const PetscScalar[],PetscViewer); 1920 1921 #include <stddef.h> 1922 #include <string.h> /* for memcpy, memset */ 1923 #if defined(PETSC_HAVE_STDLIB_H) 1924 #include <stdlib.h> 1925 #endif 1926 1927 #if defined(PETSC_HAVE_XMMINTRIN_H) && !defined(__CUDACC__) 1928 #include <xmmintrin.h> 1929 #endif 1930 1931 /*@C 1932 PetscMemcpy - Copies n bytes, beginning at location b, to the space 1933 beginning at location a. The two memory regions CANNOT overlap, use 1934 PetscMemmove() in that case. 1935 1936 Not Collective 1937 1938 Input Parameters: 1939 + b - pointer to initial memory space 1940 - n - length (in bytes) of space to copy 1941 1942 Output Parameter: 1943 . a - pointer to copy space 1944 1945 Level: intermediate 1946 1947 Compile Option: 1948 PETSC_PREFER_DCOPY_FOR_MEMCPY will cause the BLAS dcopy() routine to be used 1949 for memory copies on double precision values. 1950 PETSC_PREFER_COPY_FOR_MEMCPY will cause C code to be used 1951 for memory copies on double precision values. 1952 PETSC_PREFER_FORTRAN_FORMEMCPY will cause Fortran code to be used 1953 for memory copies on double precision values. 1954 1955 Note: 1956 This routine is analogous to memcpy(). 1957 1958 Developer Note: this is inlined for fastest performance 1959 1960 Concepts: memory^copying 1961 Concepts: copying^memory 1962 1963 .seealso: PetscMemmove() 1964 1965 @*/ 1966 PETSC_STATIC_INLINE PetscErrorCode PetscMemcpy(void *a,const void *b,size_t n) 1967 { 1968 #if defined(PETSC_USE_DEBUG) 1969 size_t al = (size_t) a,bl = (size_t) b; 1970 size_t nl = (size_t) n; 1971 PetscFunctionBegin; 1972 if (n > 0 && !b) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to copy from a null pointer"); 1973 if (n > 0 && !a) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to copy to a null pointer"); 1974 #else 1975 PetscFunctionBegin; 1976 #endif 1977 if (a != b && n > 0) { 1978 #if defined(PETSC_USE_DEBUG) 1979 if ((al > bl && (al - bl) < nl) || (bl - al) < nl) SETERRQ3(PETSC_COMM_SELF,PETSC_ERR_ARG_INCOMP,"Memory regions overlap: either use PetscMemmov()\n\ 1980 or make sure your copy regions and lengths are correct. \n\ 1981 Length (bytes) %ld first address %ld second address %ld",nl,al,bl); 1982 #endif 1983 #if (defined(PETSC_PREFER_DCOPY_FOR_MEMCPY) || defined(PETSC_PREFER_COPY_FOR_MEMCPY) || defined(PETSC_PREFER_FORTRAN_FORMEMCPY)) 1984 if (!(a % sizeof(PetscScalar)) && !(n % sizeof(PetscScalar))) { 1985 size_t len = n/sizeof(PetscScalar); 1986 #if defined(PETSC_PREFER_DCOPY_FOR_MEMCPY) 1987 PetscBLASInt one = 1,blen; 1988 PetscErrorCode ierr; 1989 ierr = PetscBLASIntCast(len,&blen);CHKERRQ(ierr); 1990 PetscStackCallBLAS("BLAScopy",BLAScopy_(&blen,(PetscScalar *)b,&one,(PetscScalar *)a,&one)); 1991 #elif defined(PETSC_PREFER_FORTRAN_FORMEMCPY) 1992 fortrancopy_(&len,(PetscScalar*)b,(PetscScalar*)a); 1993 #else 1994 size_t i; 1995 PetscScalar *x = (PetscScalar*)b, *y = (PetscScalar*)a; 1996 for (i=0; i<len; i++) y[i] = x[i]; 1997 #endif 1998 } else { 1999 memcpy((char*)(a),(char*)(b),n); 2000 } 2001 #else 2002 memcpy((char*)(a),(char*)(b),n); 2003 #endif 2004 } 2005 PetscFunctionReturn(0); 2006 } 2007 2008 /*@C 2009 PetscMemzero - Zeros the specified memory. 2010 2011 Not Collective 2012 2013 Input Parameters: 2014 + a - pointer to beginning memory location 2015 - n - length (in bytes) of memory to initialize 2016 2017 Level: intermediate 2018 2019 Compile Option: 2020 PETSC_PREFER_BZERO - on certain machines (the IBM RS6000) the bzero() routine happens 2021 to be faster than the memset() routine. This flag causes the bzero() routine to be used. 2022 2023 Developer Note: this is inlined for fastest performance 2024 2025 Concepts: memory^zeroing 2026 Concepts: zeroing^memory 2027 2028 .seealso: PetscMemcpy() 2029 @*/ 2030 PETSC_STATIC_INLINE PetscErrorCode PetscMemzero(void *a,size_t n) 2031 { 2032 if (n > 0) { 2033 #if defined(PETSC_USE_DEBUG) 2034 if (!a) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_NULL,"Trying to zero at a null pointer"); 2035 #endif 2036 #if defined(PETSC_PREFER_ZERO_FOR_MEMZERO) 2037 if (!(((long) a) % sizeof(PetscScalar)) && !(n % sizeof(PetscScalar))) { 2038 size_t i,len = n/sizeof(PetscScalar); 2039 PetscScalar *x = (PetscScalar*)a; 2040 for (i=0; i<len; i++) x[i] = 0.0; 2041 } else { 2042 #elif defined(PETSC_PREFER_FORTRAN_FOR_MEMZERO) 2043 if (!(((long) a) % sizeof(PetscScalar)) && !(n % sizeof(PetscScalar))) { 2044 PetscInt len = n/sizeof(PetscScalar); 2045 fortranzero_(&len,(PetscScalar*)a); 2046 } else { 2047 #endif 2048 #if defined(PETSC_PREFER_BZERO) 2049 bzero((char *)a,n); 2050 #else 2051 memset((char*)a,0,n); 2052 #endif 2053 #if defined(PETSC_PREFER_ZERO_FOR_MEMZERO) || defined(PETSC_PREFER_FORTRAN_FOR_MEMZERO) 2054 } 2055 #endif 2056 } 2057 return 0; 2058 } 2059 2060 /*MC 2061 PetscPrefetchBlock - Prefetches a block of memory 2062 2063 Synopsis: 2064 #include <petscsys.h> 2065 void PetscPrefetchBlock(const anytype *a,size_t n,int rw,int t) 2066 2067 Not Collective 2068 2069 Input Parameters: 2070 + a - pointer to first element to fetch (any type but usually PetscInt or PetscScalar) 2071 . n - number of elements to fetch 2072 . rw - 1 if the memory will be written to, otherwise 0 (ignored by many processors) 2073 - t - temporal locality (PETSC_PREFETCH_HINT_{NTA,T0,T1,T2}), see note 2074 2075 Level: developer 2076 2077 Notes: 2078 The last two arguments (rw and t) must be compile-time constants. 2079 2080 Adopting Intel's x86/x86-64 conventions, there are four levels of temporal locality. Not all architectures offer 2081 equivalent locality hints, but the following macros are always defined to their closest analogue. 2082 + PETSC_PREFETCH_HINT_NTA - Non-temporal. Prefetches directly to L1, evicts to memory (skips higher level cache unless it was already there when prefetched). 2083 . 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. 2084 . PETSC_PREFETCH_HINT_T1 - Fetch to level 2 and higher (not L1). 2085 - PETSC_PREFETCH_HINT_T2 - Fetch to high-level cache only. (On many systems, T0 and T1 are equivalent.) 2086 2087 This function does nothing on architectures that do not support prefetch and never errors (even if passed an invalid 2088 address). 2089 2090 Concepts: memory 2091 M*/ 2092 #define PetscPrefetchBlock(a,n,rw,t) do { \ 2093 const char *_p = (const char*)(a),*_end = (const char*)((a)+(n)); \ 2094 for ( ; _p < _end; _p += PETSC_LEVEL1_DCACHE_LINESIZE) PETSC_Prefetch(_p,(rw),(t)); \ 2095 } while (0) 2096 2097 /* 2098 Determine if some of the kernel computation routines use 2099 Fortran (rather than C) for the numerical calculations. On some machines 2100 and compilers (like complex numbers) the Fortran version of the routines 2101 is faster than the C/C++ versions. The flag --with-fortran-kernels 2102 should be used with ./configure to turn these on. 2103 */ 2104 #if defined(PETSC_USE_FORTRAN_KERNELS) 2105 2106 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTCRL) 2107 #define PETSC_USE_FORTRAN_KERNEL_MULTCRL 2108 #endif 2109 2110 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTAIJPERM) 2111 #define PETSC_USE_FORTRAN_KERNEL_MULTAIJPERM 2112 #endif 2113 2114 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTAIJ) 2115 #define PETSC_USE_FORTRAN_KERNEL_MULTAIJ 2116 #endif 2117 2118 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTTRANSPOSEAIJ) 2119 #define PETSC_USE_FORTRAN_KERNEL_MULTTRANSPOSEAIJ 2120 #endif 2121 2122 #if !defined(PETSC_USE_FORTRAN_KERNEL_NORM) 2123 #define PETSC_USE_FORTRAN_KERNEL_NORM 2124 #endif 2125 2126 #if !defined(PETSC_USE_FORTRAN_KERNEL_MAXPY) 2127 #define PETSC_USE_FORTRAN_KERNEL_MAXPY 2128 #endif 2129 2130 #if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ) 2131 #define PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ 2132 #endif 2133 2134 #if !defined(PETSC_USE_FORTRAN_KERNEL_RELAXAIJ) 2135 #define PETSC_USE_FORTRAN_KERNEL_RELAXAIJ 2136 #endif 2137 2138 #if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ) 2139 #define PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ 2140 #endif 2141 2142 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ) 2143 #define PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ 2144 #endif 2145 2146 #if !defined(PETSC_USE_FORTRAN_KERNEL_MDOT) 2147 #define PETSC_USE_FORTRAN_KERNEL_MDOT 2148 #endif 2149 2150 #if !defined(PETSC_USE_FORTRAN_KERNEL_XTIMESY) 2151 #define PETSC_USE_FORTRAN_KERNEL_XTIMESY 2152 #endif 2153 2154 #if !defined(PETSC_USE_FORTRAN_KERNEL_AYPX) 2155 #define PETSC_USE_FORTRAN_KERNEL_AYPX 2156 #endif 2157 2158 #if !defined(PETSC_USE_FORTRAN_KERNEL_WAXPY) 2159 #define PETSC_USE_FORTRAN_KERNEL_WAXPY 2160 #endif 2161 2162 #endif 2163 2164 /* 2165 Macros for indicating code that should be compiled with a C interface, 2166 rather than a C++ interface. Any routines that are dynamically loaded 2167 (such as the PCCreate_XXX() routines) must be wrapped so that the name 2168 mangler does not change the functions symbol name. This just hides the 2169 ugly extern "C" {} wrappers. 2170 */ 2171 #if defined(__cplusplus) 2172 #define EXTERN_C_BEGIN extern "C" { 2173 #define EXTERN_C_END } 2174 #else 2175 #define EXTERN_C_BEGIN 2176 #define EXTERN_C_END 2177 #endif 2178 2179 /* --------------------------------------------------------------------*/ 2180 2181 /*MC 2182 MPI_Comm - the basic object used by MPI to determine which processes are involved in a 2183 communication 2184 2185 Level: beginner 2186 2187 Note: This manual page is a place-holder because MPICH does not have a manual page for MPI_Comm 2188 2189 .seealso: PETSC_COMM_WORLD, PETSC_COMM_SELF 2190 M*/ 2191 2192 /*MC 2193 PetscScalar - PETSc type that represents either a double precision real number, a double precision 2194 complex number, a single precision real number, a long double or an int - if the code is configured 2195 with --with-scalar-type=real,complex --with-precision=single,double,__float128 2196 2197 Level: beginner 2198 2199 .seealso: PetscReal, MPIU_SCALAR, PetscInt, MPIU_REAL 2200 M*/ 2201 2202 /*MC 2203 PetscComplex - PETSc type that represents a complex number with precision matching that of PetscReal. 2204 2205 Synopsis: 2206 #include <petscsys.h> 2207 PetscComplex number = 1. + 2.*PETSC_i; 2208 2209 Level: beginner 2210 2211 Note: 2212 Complex numbers are automatically available if PETSc was able to find a working complex implementation 2213 2214 .seealso: PetscReal, PetscComplex, MPIU_COMPLEX, PetscInt, PETSC_i 2215 M*/ 2216 2217 /*MC 2218 PetscReal - PETSc type that represents a real number version of PetscScalar 2219 2220 Level: beginner 2221 2222 .seealso: PetscScalar 2223 M*/ 2224 2225 /*MC 2226 MPIU_SCALAR - MPI datatype corresponding to PetscScalar 2227 2228 Level: beginner 2229 2230 Note: In MPI calls that require an MPI datatype that matches a PetscScalar or array of PetscScalars 2231 pass this value 2232 2233 .seealso: PetscReal, PetscScalar, MPIU_INT 2234 M*/ 2235 2236 #if defined(PETSC_HAVE_MPIIO) 2237 #if !defined(PETSC_WORDS_BIGENDIAN) 2238 PETSC_EXTERN PetscErrorCode MPIU_File_write_all(MPI_File,void*,PetscMPIInt,MPI_Datatype,MPI_Status*); 2239 PETSC_EXTERN PetscErrorCode MPIU_File_read_all(MPI_File,void*,PetscMPIInt,MPI_Datatype,MPI_Status*); 2240 #else 2241 #define MPIU_File_write_all(a,b,c,d,e) MPI_File_write_all(a,b,c,d,e) 2242 #define MPIU_File_read_all(a,b,c,d,e) MPI_File_read_all(a,b,c,d,e) 2243 #endif 2244 #endif 2245 2246 /* the following petsc_static_inline require petscerror.h */ 2247 2248 /* Limit MPI to 32-bits */ 2249 #define PETSC_MPI_INT_MAX 2147483647 2250 #define PETSC_MPI_INT_MIN -2147483647 2251 /* Limit BLAS to 32-bits */ 2252 #define PETSC_BLAS_INT_MAX 2147483647 2253 #define PETSC_BLAS_INT_MIN -2147483647 2254 2255 /*@C 2256 PetscBLASIntCast - casts a PetscInt (which may be 64 bits in size) to a PetscBLASInt (which may be 32 bits in size), generates an 2257 error if the PetscBLASInt is not large enough to hold the number. 2258 2259 Not Collective 2260 2261 Input Parameter: 2262 . a - the PetscInt value 2263 2264 Output Parameter: 2265 . b - the resulting PetscBLASInt value 2266 2267 Level: advanced 2268 2269 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscMPIIntCast() 2270 @*/ 2271 PETSC_STATIC_INLINE PetscErrorCode PetscBLASIntCast(PetscInt a,PetscBLASInt *b) 2272 { 2273 PetscFunctionBegin; 2274 *b = (PetscBLASInt)(a); 2275 #if defined(PETSC_USE_64BIT_INDICES) && !defined(PETSC_HAVE_64BIT_BLAS_INDICES) 2276 if ((a) > PETSC_BLAS_INT_MAX) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Array too long for BLAS/LAPACK"); 2277 #endif 2278 PetscFunctionReturn(0); 2279 } 2280 2281 /*@C 2282 PetscMPIIntCast - casts a PetscInt (which may be 64 bits in size) to a PetscMPIInt (which may be 32 bits in size), generates an 2283 error if the PetscMPIInt is not large enough to hold the number. 2284 2285 Not Collective 2286 2287 Input Parameter: 2288 . a - the PetscInt value 2289 2290 Output Parameter: 2291 . b - the resulting PetscMPIInt value 2292 2293 Level: advanced 2294 2295 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast() 2296 @*/ 2297 PETSC_STATIC_INLINE PetscErrorCode PetscMPIIntCast(PetscInt a,PetscMPIInt *b) 2298 { 2299 PetscFunctionBegin; 2300 *b = (PetscMPIInt)(a); 2301 #if defined(PETSC_USE_64BIT_INDICES) 2302 if ((a) > PETSC_MPI_INT_MAX) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Array too long for MPI"); 2303 #endif 2304 PetscFunctionReturn(0); 2305 } 2306 2307 #define PetscInt64Mult(a,b) ((PetscInt64)(a))*((PetscInt64)(b)) 2308 2309 /*@C 2310 2311 PetscRealIntMultTruncate - Computes the product of a positive PetscReal and a positive PetscInt and truncates the value to slightly less than the maximal possible value 2312 2313 Not Collective 2314 2315 Input Parameter: 2316 + a - the PetscReal value 2317 - b - the second value 2318 2319 Output Parameter: 2320 . c - the result as a PetscInt value 2321 2322 Use PetscInt64Mult() to compute the product of two PetscInt as a PetscInt64 2323 Use PetscIntMultTruncate() to compute the product of two positive PetscInt and truncate to fit a PetscInt 2324 Use PetscIntMultError() to compute the product of two PetscInt if you wish to generate an error if the result will not fit in a PetscInt 2325 2326 Developers Note: We currently assume that PetscInt addition can never overflow, this is obviously wrong but requires many more checks. 2327 2328 This is used where we compute approximate sizes for workspace and need to insure the workspace is index-able. 2329 2330 Level: advanced 2331 2332 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscIntMult64() 2333 @*/ 2334 PETSC_STATIC_INLINE PetscInt PetscRealIntMultTruncate(PetscReal a,PetscInt b) 2335 { 2336 PetscInt64 r; 2337 2338 r = (PetscInt64) (a*(PetscReal)b); 2339 if (r > PETSC_MAX_INT - 100) r = PETSC_MAX_INT - 100; 2340 return (PetscInt) r; 2341 } 2342 2343 /*@C 2344 2345 PetscIntMultTruncate - Computes the product of two positive PetscInt and truncates the value to slightly less than the maximal possible value 2346 2347 Not Collective 2348 2349 Input Parameter: 2350 + a - the PetscInt value 2351 - b - the second value 2352 2353 Output Parameter: 2354 . c - the result as a PetscInt value 2355 2356 Use PetscInt64Mult() to compute the product of two PetscInt as a PetscInt64 2357 Use PetscRealIntMultTruncate() to compute the product of a PetscReal and a PetscInt and truncate to fit a PetscInt 2358 Use PetscIntMultError() to compute the product of two PetscInt if you wish to generate an error if the result will not fit in a PetscInt 2359 2360 Developers Note: We currently assume that PetscInt addition can never overflow, this is obviously wrong but requires many more checks. 2361 2362 This is used where we compute approximate sizes for workspace and need to insure the workspace is index-able. 2363 2364 Level: advanced 2365 2366 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscIntMult64() 2367 @*/ 2368 PETSC_STATIC_INLINE PetscInt PetscIntMultTruncate(PetscInt a,PetscInt b) 2369 { 2370 PetscInt64 r; 2371 2372 r = PetscInt64Mult(a,b); 2373 if (r > PETSC_MAX_INT - 100) r = PETSC_MAX_INT - 100; 2374 return (PetscInt) r; 2375 } 2376 2377 /*@C 2378 2379 PetscIntSumTruncate - Computes the sum of two positive PetscInt and truncates the value to slightly less than the maximal possible value 2380 2381 Not Collective 2382 2383 Input Parameter: 2384 + a - the PetscInt value 2385 - b - the second value 2386 2387 Output Parameter: 2388 . c - the result as a PetscInt value 2389 2390 Use PetscInt64Mult() to compute the product of two PetscInt as a PetscInt64 2391 Use PetscRealIntMultTruncate() to compute the product of a PetscReal and a PetscInt and truncate to fit a PetscInt 2392 Use PetscIntMultError() to compute the product of two PetscInt if you wish to generate an error if the result will not fit in a PetscInt 2393 2394 This is used where we compute approximate sizes for workspace and need to insure the workspace is index-able. 2395 2396 Level: advanced 2397 2398 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscIntMult64() 2399 @*/ 2400 PETSC_STATIC_INLINE PetscInt PetscIntSumTruncate(PetscInt a,PetscInt b) 2401 { 2402 PetscInt64 r; 2403 2404 r = ((PetscInt64)a) + ((PetscInt64)b); 2405 if (r > PETSC_MAX_INT - 100) r = PETSC_MAX_INT - 100; 2406 return (PetscInt) r; 2407 } 2408 2409 /*@C 2410 2411 PetscIntMultError - Computes the product of two positive PetscInt and generates an error with overflow. 2412 2413 Not Collective 2414 2415 Input Parameter: 2416 + a - the PetscInt value 2417 - b - the second value 2418 2419 Output Parameter:ma 2420 . c - the result as a PetscInt value, or NULL if you do not want the result, you just want to check if it overflows 2421 2422 Use PetscInt64Mult() to compute the product of two 32 bit PetscInt and store in a PetscInt64 2423 Use PetscIntMultTruncate() to compute the product of two PetscInt and truncate it to fit in a PetscInt 2424 2425 Developers Note: We currently assume that PetscInt addition does not overflow, this is obviously wrong but requires many more checks. 2426 2427 Level: advanced 2428 2429 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscIntMult64(), PetscIntSumError() 2430 @*/ 2431 PETSC_STATIC_INLINE PetscErrorCode PetscIntMultError(PetscInt a,PetscInt b,PetscInt *result) 2432 { 2433 PetscInt64 r; 2434 2435 PetscFunctionBegin; 2436 r = PetscInt64Mult(a,b); 2437 #if !defined(PETSC_USE_64BIT_INDICES) 2438 if (r > PETSC_MAX_INT) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_SUP,"Product of two integer %d %d overflow, you must ./configure PETSc with --with-64-bit-indices for the case you are running",a,b); 2439 #endif 2440 if (result) *result = (PetscInt) r; 2441 PetscFunctionReturn(0); 2442 } 2443 2444 /*@C 2445 2446 PetscIntSumError - Computes the sum of two positive PetscInt and generates an error with overflow. 2447 2448 Not Collective 2449 2450 Input Parameter: 2451 + a - the PetscInt value 2452 - b - the second value 2453 2454 Output Parameter:ma 2455 . c - the result as a PetscInt value 2456 2457 Use PetscInt64Mult() to compute the product of two 32 bit PetscInt and store in a PetscInt64 2458 Use PetscIntMultTruncate() to compute the product of two PetscInt and truncate it to fit in a PetscInt 2459 2460 Level: advanced 2461 2462 .seealso: PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscIntMult64() 2463 @*/ 2464 PETSC_STATIC_INLINE PetscErrorCode PetscIntSumError(PetscInt a,PetscInt b,PetscInt *result) 2465 { 2466 PetscInt64 r; 2467 2468 PetscFunctionBegin; 2469 r = ((PetscInt64)a) + ((PetscInt64)b); 2470 #if !defined(PETSC_USE_64BIT_INDICES) 2471 if (r > PETSC_MAX_INT) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_SUP,"Sum of two integer %d %d overflow, you must ./configure PETSc with --with-64-bit-indices for the case you are running",a,b); 2472 #endif 2473 if (result) *result = (PetscInt) r; 2474 PetscFunctionReturn(0); 2475 } 2476 2477 /* 2478 The IBM include files define hz, here we hide it so that it may be used as a regular user variable. 2479 */ 2480 #if defined(hz) 2481 #undef hz 2482 #endif 2483 2484 /* For arrays that contain filenames or paths */ 2485 2486 2487 #if defined(PETSC_HAVE_LIMITS_H) 2488 #include <limits.h> 2489 #endif 2490 #if defined(PETSC_HAVE_SYS_PARAM_H) 2491 #include <sys/param.h> 2492 #endif 2493 #if defined(PETSC_HAVE_SYS_TYPES_H) 2494 #include <sys/types.h> 2495 #endif 2496 #if defined(MAXPATHLEN) 2497 # define PETSC_MAX_PATH_LEN MAXPATHLEN 2498 #elif defined(MAX_PATH) 2499 # define PETSC_MAX_PATH_LEN MAX_PATH 2500 #elif defined(_MAX_PATH) 2501 # define PETSC_MAX_PATH_LEN _MAX_PATH 2502 #else 2503 # define PETSC_MAX_PATH_LEN 4096 2504 #endif 2505 2506 /*MC 2507 2508 UsingFortran - To use PETSc with Fortran you must use both PETSc include files and modules. At the beginning 2509 of every function and module definition you need something like 2510 2511 $ 2512 $#include "petsc/finclude/petscXXX.h" 2513 $ use petscXXXX 2514 2515 You can delcare PETSc variables using either 2516 2517 $ XXX variablename 2518 $ type(tXXX) variablename 2519 2520 for example 2521 2522 $#include "petsc/finclude/petscvec.h" 2523 $ use petscvec 2524 $ 2525 $ Vec A 2526 $ type(tVec) A 2527 2528 Level: beginner 2529 2530 M*/ 2531 2532 PETSC_EXTERN PetscErrorCode PetscGetArchType(char[],size_t); 2533 PETSC_EXTERN PetscErrorCode PetscGetHostName(char[],size_t); 2534 PETSC_EXTERN PetscErrorCode PetscGetUserName(char[],size_t); 2535 PETSC_EXTERN PetscErrorCode PetscGetProgramName(char[],size_t); 2536 PETSC_EXTERN PetscErrorCode PetscSetProgramName(const char[]); 2537 PETSC_EXTERN PetscErrorCode PetscGetDate(char[],size_t); 2538 PETSC_EXTERN PetscErrorCode PetscGetVersion(char[], size_t); 2539 PETSC_EXTERN PetscErrorCode PetscGetVersionNumber(PetscInt*,PetscInt*,PetscInt*,PetscInt*); 2540 2541 PETSC_EXTERN PetscErrorCode PetscSortInt(PetscInt,PetscInt[]); 2542 PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsInt(PetscInt*,PetscInt[]); 2543 PETSC_EXTERN PetscErrorCode PetscFindInt(PetscInt, PetscInt, const PetscInt[], PetscInt*); 2544 PETSC_EXTERN PetscErrorCode PetscSortIntWithPermutation(PetscInt,const PetscInt[],PetscInt[]); 2545 PETSC_EXTERN PetscErrorCode PetscSortStrWithPermutation(PetscInt,const char*[],PetscInt[]); 2546 PETSC_EXTERN PetscErrorCode PetscSortIntWithArray(PetscInt,PetscInt[],PetscInt[]); 2547 PETSC_EXTERN PetscErrorCode PetscSortIntWithArrayPair(PetscInt,PetscInt[],PetscInt[],PetscInt[]); 2548 PETSC_EXTERN PetscErrorCode PetscSortMPIInt(PetscInt,PetscMPIInt[]); 2549 PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsMPIInt(PetscInt*,PetscMPIInt[]); 2550 PETSC_EXTERN PetscErrorCode PetscSortMPIIntWithArray(PetscMPIInt,PetscMPIInt[],PetscMPIInt[]); 2551 PETSC_EXTERN PetscErrorCode PetscSortIntWithScalarArray(PetscInt,PetscInt[],PetscScalar[]); 2552 PETSC_EXTERN PetscErrorCode PetscSortIntWithDataArray(PetscInt,PetscInt[],void*,size_t,void*); 2553 PETSC_EXTERN PetscErrorCode PetscSortReal(PetscInt,PetscReal[]); 2554 PETSC_EXTERN PetscErrorCode PetscSortRealWithPermutation(PetscInt,const PetscReal[],PetscInt[]); 2555 PETSC_EXTERN PetscErrorCode PetscSortRemoveDupsReal(PetscInt*,PetscReal[]); 2556 PETSC_EXTERN PetscErrorCode PetscSortSplit(PetscInt,PetscInt,PetscScalar[],PetscInt[]); 2557 PETSC_EXTERN PetscErrorCode PetscSortSplitReal(PetscInt,PetscInt,PetscReal[],PetscInt[]); 2558 PETSC_EXTERN PetscErrorCode PetscProcessTree(PetscInt,const PetscBool [],const PetscInt[],PetscInt*,PetscInt**,PetscInt**,PetscInt**,PetscInt**); 2559 PETSC_EXTERN PetscErrorCode PetscMergeIntArrayPair(PetscInt,const PetscInt[],const PetscInt[],PetscInt,const PetscInt[],const PetscInt[],PetscInt*,PetscInt**,PetscInt**); 2560 PETSC_EXTERN PetscErrorCode PetscMergeIntArray(PetscInt,const PetscInt[],PetscInt,const PetscInt[],PetscInt*,PetscInt**); 2561 PETSC_EXTERN PetscErrorCode PetscMergeMPIIntArray(PetscInt,const PetscMPIInt[],PetscInt,const PetscMPIInt[],PetscInt*,PetscMPIInt**); 2562 2563 PETSC_EXTERN PetscErrorCode PetscSetDisplay(void); 2564 PETSC_EXTERN PetscErrorCode PetscGetDisplay(char[],size_t); 2565 2566 /*J 2567 PetscRandomType - String with the name of a PETSc randomizer 2568 2569 Level: beginner 2570 2571 Notes: to use the SPRNG you must have ./configure PETSc 2572 with the option --download-sprng 2573 2574 .seealso: PetscRandomSetType(), PetscRandom, PetscRandomCreate() 2575 J*/ 2576 typedef const char* PetscRandomType; 2577 #define PETSCRAND "rand" 2578 #define PETSCRAND48 "rand48" 2579 #define PETSCSPRNG "sprng" 2580 #define PETSCRANDER48 "rander48" 2581 2582 /* Logging support */ 2583 PETSC_EXTERN PetscClassId PETSC_RANDOM_CLASSID; 2584 2585 PETSC_EXTERN PetscErrorCode PetscRandomInitializePackage(void); 2586 2587 /*S 2588 PetscRandom - Abstract PETSc object that manages generating random numbers 2589 2590 Level: intermediate 2591 2592 Concepts: random numbers 2593 2594 .seealso: PetscRandomCreate(), PetscRandomGetValue(), PetscRandomType 2595 S*/ 2596 typedef struct _p_PetscRandom* PetscRandom; 2597 2598 /* Dynamic creation and loading functions */ 2599 PETSC_EXTERN PetscFunctionList PetscRandomList; 2600 2601 PETSC_EXTERN PetscErrorCode PetscRandomRegister(const char[],PetscErrorCode (*)(PetscRandom)); 2602 PETSC_EXTERN PetscErrorCode PetscRandomSetType(PetscRandom, PetscRandomType); 2603 PETSC_EXTERN PetscErrorCode PetscRandomSetFromOptions(PetscRandom); 2604 PETSC_EXTERN PetscErrorCode PetscRandomGetType(PetscRandom, PetscRandomType*); 2605 PETSC_STATIC_INLINE PetscErrorCode PetscRandomViewFromOptions(PetscRandom A,PetscObject obj,const char name[]) {return PetscObjectViewFromOptions((PetscObject)A,obj,name);} 2606 PETSC_EXTERN PetscErrorCode PetscRandomView(PetscRandom,PetscViewer); 2607 2608 PETSC_EXTERN PetscErrorCode PetscRandomCreate(MPI_Comm,PetscRandom*); 2609 PETSC_EXTERN PetscErrorCode PetscRandomGetValue(PetscRandom,PetscScalar*); 2610 PETSC_EXTERN PetscErrorCode PetscRandomGetValueReal(PetscRandom,PetscReal*); 2611 PETSC_EXTERN PetscErrorCode PetscRandomGetInterval(PetscRandom,PetscScalar*,PetscScalar*); 2612 PETSC_EXTERN PetscErrorCode PetscRandomSetInterval(PetscRandom,PetscScalar,PetscScalar); 2613 PETSC_EXTERN PetscErrorCode PetscRandomSetSeed(PetscRandom,unsigned long); 2614 PETSC_EXTERN PetscErrorCode PetscRandomGetSeed(PetscRandom,unsigned long *); 2615 PETSC_EXTERN PetscErrorCode PetscRandomSeed(PetscRandom); 2616 PETSC_EXTERN PetscErrorCode PetscRandomDestroy(PetscRandom*); 2617 2618 PETSC_EXTERN PetscErrorCode PetscGetFullPath(const char[],char[],size_t); 2619 PETSC_EXTERN PetscErrorCode PetscGetRelativePath(const char[],char[],size_t); 2620 PETSC_EXTERN PetscErrorCode PetscGetWorkingDirectory(char[],size_t); 2621 PETSC_EXTERN PetscErrorCode PetscGetRealPath(const char[],char[]); 2622 PETSC_EXTERN PetscErrorCode PetscGetHomeDirectory(char[],size_t); 2623 PETSC_EXTERN PetscErrorCode PetscTestFile(const char[],char,PetscBool *); 2624 PETSC_EXTERN PetscErrorCode PetscTestDirectory(const char[],char,PetscBool *); 2625 PETSC_EXTERN PetscErrorCode PetscMkdir(const char[]); 2626 PETSC_EXTERN PetscErrorCode PetscRMTree(const char[]); 2627 2628 PETSC_EXTERN PetscErrorCode PetscBinaryRead(int,void*,PetscInt,PetscDataType); 2629 PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedRead(MPI_Comm,int,void*,PetscInt,PetscDataType); 2630 PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedWrite(MPI_Comm,int,void*,PetscInt,PetscDataType,PetscBool ); 2631 PETSC_EXTERN PetscErrorCode PetscBinaryWrite(int,void*,PetscInt,PetscDataType,PetscBool ); 2632 PETSC_EXTERN PetscErrorCode PetscBinaryOpen(const char[],PetscFileMode,int *); 2633 PETSC_EXTERN PetscErrorCode PetscBinaryClose(int); 2634 PETSC_EXTERN PetscErrorCode PetscSharedTmp(MPI_Comm,PetscBool *); 2635 PETSC_EXTERN PetscErrorCode PetscSharedWorkingDirectory(MPI_Comm,PetscBool *); 2636 PETSC_EXTERN PetscErrorCode PetscGetTmp(MPI_Comm,char[],size_t); 2637 PETSC_EXTERN PetscErrorCode PetscFileRetrieve(MPI_Comm,const char[],char[],size_t,PetscBool *); 2638 PETSC_EXTERN PetscErrorCode PetscLs(MPI_Comm,const char[],char[],size_t,PetscBool *); 2639 PETSC_EXTERN PetscErrorCode PetscOpenSocket(const char[],int,int*); 2640 2641 /* 2642 In binary files variables are stored using the following lengths, 2643 regardless of how they are stored in memory on any one particular 2644 machine. Use these rather then sizeof() in computing sizes for 2645 PetscBinarySeek(). 2646 */ 2647 #define PETSC_BINARY_INT_SIZE (32/8) 2648 #define PETSC_BINARY_FLOAT_SIZE (32/8) 2649 #define PETSC_BINARY_CHAR_SIZE (8/8) 2650 #define PETSC_BINARY_SHORT_SIZE (16/8) 2651 #define PETSC_BINARY_DOUBLE_SIZE (64/8) 2652 #define PETSC_BINARY_SCALAR_SIZE sizeof(PetscScalar) 2653 2654 /*E 2655 PetscBinarySeekType - argument to PetscBinarySeek() 2656 2657 Level: advanced 2658 2659 .seealso: PetscBinarySeek(), PetscBinarySynchronizedSeek() 2660 E*/ 2661 typedef enum {PETSC_BINARY_SEEK_SET = 0,PETSC_BINARY_SEEK_CUR = 1,PETSC_BINARY_SEEK_END = 2} PetscBinarySeekType; 2662 PETSC_EXTERN PetscErrorCode PetscBinarySeek(int,off_t,PetscBinarySeekType,off_t*); 2663 PETSC_EXTERN PetscErrorCode PetscBinarySynchronizedSeek(MPI_Comm,int,off_t,PetscBinarySeekType,off_t*); 2664 PETSC_EXTERN PetscErrorCode PetscByteSwap(void *,PetscDataType,PetscInt); 2665 2666 PETSC_EXTERN PetscErrorCode PetscSetDebugTerminal(const char[]); 2667 PETSC_EXTERN PetscErrorCode PetscSetDebugger(const char[],PetscBool ); 2668 PETSC_EXTERN PetscErrorCode PetscSetDefaultDebugger(void); 2669 PETSC_EXTERN PetscErrorCode PetscSetDebuggerFromString(const char*); 2670 PETSC_EXTERN PetscErrorCode PetscAttachDebugger(void); 2671 PETSC_EXTERN PetscErrorCode PetscStopForDebugger(void); 2672 2673 PETSC_EXTERN PetscErrorCode PetscGatherNumberOfMessages(MPI_Comm,const PetscMPIInt[],const PetscMPIInt[],PetscMPIInt*); 2674 PETSC_EXTERN PetscErrorCode PetscGatherMessageLengths(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],PetscMPIInt**,PetscMPIInt**); 2675 PETSC_EXTERN PetscErrorCode PetscGatherMessageLengths2(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],const PetscMPIInt[],PetscMPIInt**,PetscMPIInt**,PetscMPIInt**); 2676 PETSC_EXTERN PetscErrorCode PetscPostIrecvInt(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],const PetscMPIInt[],PetscInt***,MPI_Request**); 2677 PETSC_EXTERN PetscErrorCode PetscPostIrecvScalar(MPI_Comm,PetscMPIInt,PetscMPIInt,const PetscMPIInt[],const PetscMPIInt[],PetscScalar***,MPI_Request**); 2678 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSided(MPI_Comm,PetscMPIInt,MPI_Datatype,PetscMPIInt,const PetscMPIInt*,const void*,PetscMPIInt*,PetscMPIInt**,void*) 2679 PetscAttrMPIPointerWithType(6,3); 2680 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedF(MPI_Comm,PetscMPIInt,MPI_Datatype,PetscMPIInt,const PetscMPIInt[],const void*,PetscMPIInt*,PetscMPIInt**,void*,PetscMPIInt, 2681 PetscErrorCode (*send)(MPI_Comm,const PetscMPIInt[],PetscMPIInt,PetscMPIInt,void*,MPI_Request[],void*), 2682 PetscErrorCode (*recv)(MPI_Comm,const PetscMPIInt[],PetscMPIInt,void*,MPI_Request[],void*),void *ctx) 2683 PetscAttrMPIPointerWithType(6,3); 2684 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedFReq(MPI_Comm,PetscMPIInt,MPI_Datatype,PetscMPIInt,const PetscMPIInt[],const void*,PetscMPIInt*,PetscMPIInt**,void*,PetscMPIInt, 2685 MPI_Request**,MPI_Request**, 2686 PetscErrorCode (*send)(MPI_Comm,const PetscMPIInt[],PetscMPIInt,PetscMPIInt,void*,MPI_Request[],void*), 2687 PetscErrorCode (*recv)(MPI_Comm,const PetscMPIInt[],PetscMPIInt,void*,MPI_Request[],void*),void *ctx) 2688 PetscAttrMPIPointerWithType(6,3); 2689 2690 /*E 2691 PetscBuildTwoSidedType - algorithm for setting up two-sided communication 2692 2693 $ PETSC_BUILDTWOSIDED_ALLREDUCE - classical algorithm using an MPI_Allreduce with 2694 $ a buffer of length equal to the communicator size. Not memory-scalable due to 2695 $ the large reduction size. Requires only MPI-1. 2696 $ PETSC_BUILDTWOSIDED_IBARRIER - nonblocking algorithm based on MPI_Issend and MPI_Ibarrier. 2697 $ Proved communication-optimal in Hoefler, Siebert, and Lumsdaine (2010). Requires MPI-3. 2698 $ PETSC_BUILDTWOSIDED_REDSCATTER - similar to above, but use more optimized function 2699 $ that only communicates the part of the reduction that is necessary. Requires MPI-2. 2700 2701 Level: developer 2702 2703 .seealso: PetscCommBuildTwoSided(), PetscCommBuildTwoSidedSetType(), PetscCommBuildTwoSidedGetType() 2704 E*/ 2705 typedef enum { 2706 PETSC_BUILDTWOSIDED_NOTSET = -1, 2707 PETSC_BUILDTWOSIDED_ALLREDUCE = 0, 2708 PETSC_BUILDTWOSIDED_IBARRIER = 1, 2709 PETSC_BUILDTWOSIDED_REDSCATTER = 2 2710 /* Updates here must be accompanied by updates in finclude/petscsys.h and the string array in mpits.c */ 2711 } PetscBuildTwoSidedType; 2712 PETSC_EXTERN const char *const PetscBuildTwoSidedTypes[]; 2713 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedSetType(MPI_Comm,PetscBuildTwoSidedType); 2714 PETSC_EXTERN PetscErrorCode PetscCommBuildTwoSidedGetType(MPI_Comm,PetscBuildTwoSidedType*); 2715 2716 PETSC_EXTERN PetscErrorCode PetscSSEIsEnabled(MPI_Comm,PetscBool *,PetscBool *); 2717 2718 /*E 2719 InsertMode - Whether entries are inserted or added into vectors or matrices 2720 2721 Level: beginner 2722 2723 .seealso: VecSetValues(), MatSetValues(), VecSetValue(), VecSetValuesBlocked(), 2724 VecSetValuesLocal(), VecSetValuesBlockedLocal(), MatSetValuesBlocked(), 2725 MatSetValuesBlockedLocal(), MatSetValuesLocal(), VecScatterBegin(), VecScatterEnd() 2726 E*/ 2727 typedef enum {NOT_SET_VALUES, INSERT_VALUES, ADD_VALUES, MAX_VALUES, INSERT_ALL_VALUES, ADD_ALL_VALUES, INSERT_BC_VALUES, ADD_BC_VALUES} InsertMode; 2728 2729 /*MC 2730 INSERT_VALUES - Put a value into a vector or matrix, overwrites any previous value 2731 2732 Level: beginner 2733 2734 .seealso: InsertMode, VecSetValues(), MatSetValues(), VecSetValue(), VecSetValuesBlocked(), 2735 VecSetValuesLocal(), VecSetValuesBlockedLocal(), MatSetValuesBlocked(), ADD_VALUES, 2736 MatSetValuesBlockedLocal(), MatSetValuesLocal(), VecScatterBegin(), VecScatterEnd(), MAX_VALUES 2737 2738 M*/ 2739 2740 /*MC 2741 ADD_VALUES - Adds a value into a vector or matrix, if there previously was no value, just puts the 2742 value into that location 2743 2744 Level: beginner 2745 2746 .seealso: InsertMode, VecSetValues(), MatSetValues(), VecSetValue(), VecSetValuesBlocked(), 2747 VecSetValuesLocal(), VecSetValuesBlockedLocal(), MatSetValuesBlocked(), INSERT_VALUES, 2748 MatSetValuesBlockedLocal(), MatSetValuesLocal(), VecScatterBegin(), VecScatterEnd(), MAX_VALUES 2749 2750 M*/ 2751 2752 /*MC 2753 MAX_VALUES - Puts the maximum of the scattered/gathered value and the current value into each location 2754 2755 Level: beginner 2756 2757 .seealso: InsertMode, VecScatterBegin(), VecScatterEnd(), ADD_VALUES, INSERT_VALUES 2758 2759 M*/ 2760 2761 PETSC_EXTERN MPI_Comm PetscObjectComm(PetscObject); 2762 2763 typedef enum {PETSC_SUBCOMM_GENERAL=0,PETSC_SUBCOMM_CONTIGUOUS=1,PETSC_SUBCOMM_INTERLACED=2} PetscSubcommType; 2764 PETSC_EXTERN const char *const PetscSubcommTypes[]; 2765 2766 /*S 2767 PetscSubcomm - A decomposition of an MPI communicator into subcommunicators 2768 2769 Notes: After a call to PetscSubcommSetType(), PetscSubcommSetTypeGeneral(), or PetscSubcommSetFromOptions() one may call 2770 $ PetscSubcommChild() returns the associated subcommunicator on this process 2771 $ PetscSubcommContiguousParent() returns a parent communitor but with all child of the same subcommunicator having contiguous rank 2772 2773 Sample Usage: 2774 PetscSubcommCreate() 2775 PetscSubcommSetNumber() 2776 PetscSubcommSetType(PETSC_SUBCOMM_INTERLACED); 2777 ccomm = PetscSubcommChild() 2778 PetscSubcommDestroy() 2779 2780 Level: advanced 2781 2782 Concepts: communicator, create 2783 2784 Notes: 2785 $ PETSC_SUBCOMM_GENERAL - similar to MPI_Comm_split() each process sets the new communicator (color) they will belong to and the order within that communicator 2786 $ PETSC_SUBCOMM_CONTIGUOUS - each new communicator contains a set of process with contiguous ranks in the original MPI communicator 2787 $ PETSC_SUBCOMM_INTERLACED - each new communictor contains a set of processes equally far apart in rank from the others in that new communicator 2788 2789 Examaple: Consider a communicator with six processes split into 3 subcommunicators. 2790 $ PETSC_SUBCOMM_CONTIGUOUS - the first communicator contains rank 0,1 the second rank 2,3 and the third rank 4,5 in the original ordering of the original communicator 2791 $ PETSC_SUBCOMM_INTERLACED - the first communicator contains rank 0,3, the second 1,4 and the third 2,5 2792 2793 Developer Notes: This is used in objects such as PCREDUNDANT() to manage the subcommunicators on which the redundant computations 2794 are performed. 2795 2796 2797 .seealso: PetscSubcommCreate(), PetscSubcommSetNumber(), PetscSubcommSetType(), PetscSubcommView(), PetscSubcommSetFromOptions() 2798 2799 S*/ 2800 typedef struct _n_PetscSubcomm* PetscSubcomm; 2801 2802 struct _n_PetscSubcomm { 2803 MPI_Comm parent; /* parent communicator */ 2804 MPI_Comm dupparent; /* duplicate parent communicator, under which the processors of this subcomm have contiguous rank */ 2805 MPI_Comm child; /* the sub-communicator */ 2806 PetscMPIInt n; /* num of subcommunicators under the parent communicator */ 2807 PetscMPIInt color; /* color of processors belong to this communicator */ 2808 PetscMPIInt *subsize; /* size of subcommunicator[color] */ 2809 PetscSubcommType type; 2810 char *subcommprefix; 2811 }; 2812 2813 PETSC_STATIC_INLINE MPI_Comm PetscSubcommParent(PetscSubcomm scomm) {return scomm->parent;} 2814 PETSC_STATIC_INLINE MPI_Comm PetscSubcommChild(PetscSubcomm scomm) {return scomm->child;} 2815 PETSC_STATIC_INLINE MPI_Comm PetscSubcommContiguousParent(PetscSubcomm scomm) {return scomm->dupparent;} 2816 PETSC_EXTERN PetscErrorCode PetscSubcommCreate(MPI_Comm,PetscSubcomm*); 2817 PETSC_EXTERN PetscErrorCode PetscSubcommDestroy(PetscSubcomm*); 2818 PETSC_EXTERN PetscErrorCode PetscSubcommSetNumber(PetscSubcomm,PetscInt); 2819 PETSC_EXTERN PetscErrorCode PetscSubcommSetType(PetscSubcomm,PetscSubcommType); 2820 PETSC_EXTERN PetscErrorCode PetscSubcommSetTypeGeneral(PetscSubcomm,PetscMPIInt,PetscMPIInt); 2821 PETSC_EXTERN PetscErrorCode PetscSubcommView(PetscSubcomm,PetscViewer); 2822 PETSC_EXTERN PetscErrorCode PetscSubcommSetFromOptions(PetscSubcomm); 2823 PETSC_EXTERN PetscErrorCode PetscSubcommSetOptionsPrefix(PetscSubcomm,const char[]); 2824 2825 /*S 2826 PetscSegBuffer - a segmented extendable buffer 2827 2828 Level: developer 2829 2830 .seealso: PetscSegBufferCreate(), PetscSegBufferGet(), PetscSegBufferExtract(), PetscSegBufferDestroy() 2831 S*/ 2832 typedef struct _n_PetscSegBuffer *PetscSegBuffer; 2833 PETSC_EXTERN PetscErrorCode PetscSegBufferCreate(size_t,size_t,PetscSegBuffer*); 2834 PETSC_EXTERN PetscErrorCode PetscSegBufferDestroy(PetscSegBuffer*); 2835 PETSC_EXTERN PetscErrorCode PetscSegBufferGet(PetscSegBuffer,size_t,void*); 2836 PETSC_EXTERN PetscErrorCode PetscSegBufferExtractAlloc(PetscSegBuffer,void*); 2837 PETSC_EXTERN PetscErrorCode PetscSegBufferExtractTo(PetscSegBuffer,void*); 2838 PETSC_EXTERN PetscErrorCode PetscSegBufferExtractInPlace(PetscSegBuffer,void*); 2839 PETSC_EXTERN PetscErrorCode PetscSegBufferGetSize(PetscSegBuffer,size_t*); 2840 PETSC_EXTERN PetscErrorCode PetscSegBufferUnuse(PetscSegBuffer,size_t); 2841 2842 /* Type-safe wrapper to encourage use of PETSC_RESTRICT. Does not use PetscFunctionBegin because the error handling 2843 * prevents the compiler from completely erasing the stub. This is called in inner loops so it has to be as fast as 2844 * possible. */ 2845 PETSC_STATIC_INLINE PetscErrorCode PetscSegBufferGetInts(PetscSegBuffer seg,PetscInt count,PetscInt *PETSC_RESTRICT *slot) {return PetscSegBufferGet(seg,(size_t)count,(void**)slot);} 2846 2847 typedef struct _n_PetscOptionsHelpPrinted *PetscOptionsHelpPrinted; 2848 extern PetscOptionsHelpPrinted PetscOptionsHelpPrintedSingleton; 2849 PETSC_EXTERN PetscErrorCode PetscOptionsHelpPrintedDestroy(PetscOptionsHelpPrinted*); 2850 PETSC_EXTERN PetscErrorCode PetscOptionsHelpPrintedCreate(PetscOptionsHelpPrinted*); 2851 PETSC_EXTERN PetscErrorCode PetscOptionsHelpPrintedCheck(PetscOptionsHelpPrinted,const char*,const char*,PetscBool*); 2852 2853 PETSC_EXTERN PetscSegBuffer PetscCitationsList; 2854 2855 /*@C 2856 PetscCitationsRegister - Register a bibtex item to obtain credit for an implemented algorithm used in the code. 2857 2858 Not Collective - only what is registered on rank 0 of PETSC_COMM_WORLD will be printed 2859 2860 Input Parameters: 2861 + cite - the bibtex item, formated to displayed on multiple lines nicely 2862 - set - a boolean variable initially set to PETSC_FALSE; this is used to insure only a single registration of the citation 2863 2864 Level: intermediate 2865 2866 Options Database: 2867 . -citations [filename] - print out the bibtex entries for the given computation 2868 @*/ 2869 PETSC_STATIC_INLINE PetscErrorCode PetscCitationsRegister(const char cit[],PetscBool *set) 2870 { 2871 size_t len; 2872 char *vstring; 2873 PetscErrorCode ierr; 2874 2875 PetscFunctionBegin; 2876 if (set && *set) PetscFunctionReturn(0); 2877 ierr = PetscStrlen(cit,&len);CHKERRQ(ierr); 2878 ierr = PetscSegBufferGet(PetscCitationsList,len,&vstring);CHKERRQ(ierr); 2879 ierr = PetscMemcpy(vstring,cit,len);CHKERRQ(ierr); 2880 if (set) *set = PETSC_TRUE; 2881 PetscFunctionReturn(0); 2882 } 2883 2884 PETSC_EXTERN PetscErrorCode PetscURLShorten(const char[],char[],size_t); 2885 PETSC_EXTERN PetscErrorCode PetscGoogleDriveAuthorize(MPI_Comm,char[],char[],size_t); 2886 PETSC_EXTERN PetscErrorCode PetscGoogleDriveRefresh(MPI_Comm,const char[],char[],size_t); 2887 PETSC_EXTERN PetscErrorCode PetscGoogleDriveUpload(MPI_Comm,const char[],const char []); 2888 2889 PETSC_EXTERN PetscErrorCode PetscBoxAuthorize(MPI_Comm,char[],char[],size_t); 2890 PETSC_EXTERN PetscErrorCode PetscBoxRefresh(MPI_Comm,const char[],char[],char[],size_t); 2891 2892 PETSC_EXTERN PetscErrorCode PetscTextBelt(MPI_Comm,const char[],const char[],PetscBool*); 2893 PETSC_EXTERN PetscErrorCode PetscTellMyCell(MPI_Comm,const char[],const char[],PetscBool*); 2894 2895 PETSC_EXTERN PetscErrorCode PetscPullJSONValue(const char[],const char[],char[],size_t,PetscBool*); 2896 PETSC_EXTERN PetscErrorCode PetscPushJSONValue(char[],const char[],const char[],size_t); 2897 2898 2899 #if defined(PETSC_USE_DEBUG) 2900 /* 2901 Verify that all processes in the communicator have called this from the same line of code 2902 */ 2903 PETSC_EXTERN PetscErrorCode PetscAllreduceBarrierCheck(MPI_Comm,PetscMPIInt,int,const char*,const char *); 2904 2905 /*MC 2906 MPIU_Allreduce - a PETSc replacement for MPI_Allreduce() that tries to determine if the call from all the MPI processes occur from the 2907 same place in the PETSc code. This helps to detect bugs where different MPI processes follow different code paths 2908 resulting in inconsistent and incorrect calls to MPI_Allreduce(). 2909 2910 Collective on MPI_Comm 2911 2912 Synopsis: 2913 #include <petscsys.h> 2914 PetscErrorCode MPIU_Allreduce(void *indata,void *outdata,PetscMPIInt count,MPI_Datatype datatype, MPI_Op op, MPI_Comm comm); 2915 2916 Input Parameters: 2917 + indata - pointer to the input data to be reduced 2918 . count - the number of MPI data items in indata and outdata 2919 . datatype - the MPI datatype, for example MPI_INT 2920 . op - the MPI operation, for example MPI_SUM 2921 - comm - the MPI communicator on which the operation occurs 2922 2923 Output Parameter: 2924 . outdata - the reduced values 2925 2926 Notes: In optimized mode this directly calls MPI_Allreduce() 2927 2928 Level: developer 2929 2930 .seealso: MPI_Allreduce() 2931 M*/ 2932 #define MPIU_Allreduce(a,b,c,d,e,fcomm) (PetscAllreduceBarrierCheck(fcomm,c,__LINE__,PETSC_FUNCTION_NAME,__FILE__) || MPI_Allreduce(a,b,c,d,e,fcomm)) 2933 #else 2934 #define MPIU_Allreduce(a,b,c,d,e,fcomm) MPI_Allreduce(a,b,c,d,e,fcomm) 2935 #endif 2936 2937 #endif 2938