1 /* $Id: petsc.h,v 1.290 2001/05/24 20:52:45 bsmith Exp bsmith $ */ 2 /* 3 This is the main PETSc include file (for C and C++). It is included by all 4 other PETSc include files, so it almost never has to be specifically included. 5 */ 6 #if !defined(__PETSC_H) 7 #define __PETSC_H 8 9 /* ========================================================================== */ 10 /* 11 Current PETSc version number and release date 12 */ 13 #include "petscversion.h" 14 15 /* ========================================================================== */ 16 /* 17 The PETSc configuration file. Contains various definitions that 18 handle portability issues and the presence of machine features. 19 20 petscconf.h is contained in bmake/${PETSC_ARCH}/petscconf.h it is 21 found automatically by the compiler due to the -I${PETSC_DIR}/bmake/${PETSC_ARCH} 22 in the bmake/common_variables definition of PETSC_INCLUDE 23 */ 24 #include "petscconf.h" 25 26 /* ========================================================================== */ 27 28 #include <stdio.h> 29 /* 30 Defines the interface to MPI allowing the use of all MPI functions. 31 */ 32 #include "mpi.h" 33 34 /* 35 EXTERN indicates a PETSc function defined elsewhere 36 */ 37 #define EXTERN extern 38 39 /* 40 Defines some elementary mathematics functions and constants. 41 */ 42 #include "petscmath.h" 43 44 /* 45 Basic PETSc constants 46 */ 47 48 /*E 49 PetscTruth - Logical variable. Actually an integer 50 51 Level: beginner 52 53 E*/ 54 typedef enum { PETSC_FALSE,PETSC_TRUE } PetscTruth; 55 56 #define PETSC_NULL 0 57 #define PETSC_DECIDE -1 58 #define PETSC_DEFAULT -2 59 60 #define PETSC_YES PETSC_TRUE 61 #define PETSC_NO PETSC_FALSE 62 #define PETSC_IGNORE PETSC_NULL 63 #define PETSC_DETERMINE PETSC_DECIDE 64 65 66 extern MPI_Comm PETSC_COMM_WORLD; 67 extern MPI_Comm PETSC_COMM_SELF; 68 extern PetscTruth PetscInitializeCalled; 69 EXTERN int PetscSetCommWorld(MPI_Comm); 70 EXTERN int PetscSetHelpVersionFunctions(int (*)(MPI_Comm),int (*)(MPI_Comm)); 71 72 /*MC 73 PetscMalloc - Allocates memory 74 75 Input Parameter: 76 . m - number of bytes to allocate 77 78 Output Parameter: 79 . result - memory allocated 80 81 Synopsis: 82 int PetscMalloc(int m,void **result) 83 84 Level: beginner 85 86 Notes: Memory is always allocated at least double aligned 87 88 .seealso: PetscFree(), PetscNew() 89 90 Concepts: memory allocation 91 92 M*/ 93 #define PetscMalloc(a,b) (*PetscTrMalloc)((a),__LINE__,__FUNCT__,__FILE__,__SDIR__,(void**)(b)) 94 /*MC 95 PetscNew - Allocates memory of a particular type 96 97 Input Parameter: 98 . type - structure name of space to be allocated. Memory of size sizeof(type) is allocated 99 100 Output Parameter: 101 . result - memory allocated 102 103 Synopsis: 104 int PetscNew(struct type,((type *))result) 105 106 Level: beginner 107 108 .seealso: PetscFree(), PetscMalloc() 109 110 Concepts: memory allocation 111 112 M*/ 113 #define PetscNew(A,b) PetscMalloc(sizeof(A),(b)) 114 /*MC 115 PetscFree - Frees memory 116 117 Input Parameter: 118 . memory - memory to free 119 120 Synopsis: 121 int PetscFree(memory) 122 123 Level: beginner 124 125 Notes: Memory must have been obtained with PetscNew() or PetscMalloc() 126 127 .seealso: PetscNew(), PetscMalloc() 128 129 Concepts: memory allocation 130 131 M*/ 132 #define PetscFree(a) (*PetscTrFree)((a),__LINE__,__FUNCT__,__FILE__,__SDIR__) 133 EXTERN int (*PetscTrMalloc)(int,int,char*,char*,char*,void**); 134 EXTERN int (*PetscTrFree)(void *,int,char*,char*,char*); 135 EXTERN int PetscSetMalloc(int (*)(int,int,char*,char*,char*,void**),int (*)(void *,int,char*,char*,char*)); 136 EXTERN int PetscClearMalloc(void); 137 138 /* 139 Routines for tracing memory corruption/bleeding with default PETSc 140 memory allocation 141 */ 142 EXTERN int PetscTrDump(FILE *); 143 EXTERN int PetscTrSpace(PetscLogDouble *,PetscLogDouble *,PetscLogDouble *); 144 EXTERN int PetscTrValid(int,const char[],const char[],const char[]); 145 EXTERN int PetscTrDebugLevel(int); 146 EXTERN int PetscTrLog(void); 147 EXTERN int PetscTrLogDump(FILE *); 148 EXTERN int PetscGetResidentSetSize(PetscLogDouble *); 149 150 /* 151 Variable type where we stash PETSc object pointers in Fortran. 152 Assumes that sizeof(long) == sizeof(void*)which is true on 153 all machines that we know. 154 */ 155 #define PetscFortranAddr long 156 157 /*E 158 PetscDataType - Used for handling different basic data types. 159 160 Level: beginner 161 162 .seealso: PetscBinaryRead(), PetscBinaryWrite(), PetscDataTypeToMPIDataType(), 163 PetscDataTypeGetSize(), PetscDataTypeGetName() 164 165 E*/ 166 typedef enum {PETSC_INT = 0,PETSC_DOUBLE = 1,PETSC_COMPLEX = 2, 167 PETSC_LONG =3 ,PETSC_SHORT = 4,PETSC_FLOAT = 5, 168 PETSC_CHAR = 6,PETSC_LOGICAL = 7} PetscDataType; 169 #if defined(PETSC_USE_COMPLEX) 170 #define PETSC_SCALAR PETSC_COMPLEX 171 #else 172 #define PETSC_SCALAR PETSC_DOUBLE 173 #endif 174 #if defined(PETSC_USE_SINGLE) 175 #define PETSC_REAL PETSC_FLOAT 176 #else 177 #define PETSC_REAL PETSC_DOUBLE 178 #endif 179 #define PETSC_FORTRANADDR PETSC_LONG 180 181 EXTERN int PetscDataTypeToMPIDataType(PetscDataType,MPI_Datatype*); 182 EXTERN int PetscDataTypeGetSize(PetscDataType,int*); 183 EXTERN int PetscDataTypeGetName(PetscDataType,char*[]); 184 185 /* 186 Basic memory and string operations. These are usually simple wrappers 187 around the basic Unix system calls, but a few of them have additional 188 functionality and/or error checking. 189 */ 190 EXTERN int PetscMemcpy(void *,const void *,int); 191 EXTERN int PetscBitMemcpy(void*,int,const void*,int,int,PetscDataType); 192 EXTERN int PetscMemmove(void *,void *,int); 193 EXTERN int PetscMemzero(void *,int); 194 EXTERN int PetscMemcmp(const void*,const void*,int,PetscTruth *); 195 EXTERN int PetscStrlen(const char[],int*); 196 EXTERN int PetscStrcmp(const char[],const char[],PetscTruth *); 197 EXTERN int PetscStrgrt(const char[],const char[],PetscTruth *); 198 EXTERN int PetscStrcasecmp(const char[],const char[],PetscTruth*); 199 EXTERN int PetscStrncmp(const char[],const char[],int,PetscTruth*); 200 EXTERN int PetscStrcpy(char[],const char[]); 201 EXTERN int PetscStrcat(char[],const char[]); 202 EXTERN int PetscStrncat(char[],const char[],int); 203 EXTERN int PetscStrncpy(char[],const char[],int); 204 EXTERN int PetscStrchr(const char[],char,char **); 205 EXTERN int PetscStrtolower(char[]); 206 EXTERN int PetscStrrchr(const char[],char,char **); 207 EXTERN int PetscStrstr(const char[],const char[],char **); 208 EXTERN int PetscStrtok(const char[],const char[],char **); 209 EXTERN int PetscStrallocpy(const char[],char **); 210 EXTERN int PetscStrreplace(MPI_Comm,const char[],char*,int); 211 #define PetscStrfree(a) ((a) ? PetscFree(a) : 0) 212 213 /* 214 These are MPI operations for MPI_Allreduce() etc 215 */ 216 EXTERN MPI_Op PetscMaxSum_Op; 217 #if defined(PETSC_USE_COMPLEX) 218 EXTERN MPI_Op PetscSum_Op; 219 #else 220 #define PetscSum_Op MPI_SUM 221 #endif 222 223 /* 224 Each PETSc object class has it's own cookie (internal integer in the 225 data structure used for error checking). These are all defined by an offset 226 from the lowest one, PETSC_COOKIE. 227 */ 228 #define PETSC_COOKIE 1211211 229 #define PETSC_MAX_COOKIES 60 230 #define PETSC_LARGEST_COOKIE_PREDEFINED PETSC_COOKIE + 30 231 #define PETSC_LARGEST_COOKIE_ALLOWED PETSC_COOKIE + PETSC_MAX_COOKIES 232 extern int PETSC_LARGEST_COOKIE; 233 234 /*S 235 PetscObject - any PETSc object, PetscViewer, Mat, Vec, SLES etc 236 237 Level: beginner 238 239 .seealso: PetscObjectDestroy(), PetscObjectView(), PetscObjectGetName(), PetscObjectSetName() 240 S*/ 241 typedef struct _p_PetscObject* PetscObject; 242 243 /*S 244 PetscFList - Linked list of functions, possibly stored in dynamic libraries, accessed 245 by string name 246 247 Level: advanced 248 249 .seealso: PetscFListAdd(), PetscFListDestroy() 250 S*/ 251 typedef struct _PetscFList *PetscFList; 252 253 #include "petscviewer.h" 254 #include "petscoptions.h" 255 256 EXTERN int PetscShowMemoryUsage(PetscViewer,char*); 257 EXTERN int PetscGetTime(PetscLogDouble*); 258 EXTERN int PetscGetCPUTime(PetscLogDouble*); 259 EXTERN int PetscSleep(int); 260 261 /* 262 Initialization of PETSc 263 */ 264 EXTERN int PetscInitialize(int*,char***,char[],const char[]); 265 EXTERN int PetscInitializeNoArguments(void); 266 EXTERN int PetscFinalize(void); 267 EXTERN int PetscInitializeFortran(void); 268 EXTERN int PetscGetArgs(int*,char ***); 269 270 /* 271 Functions that can act on any PETSc object. 272 */ 273 EXTERN int PetscObjectDestroy(PetscObject); 274 EXTERN int PetscObjectExists(PetscObject,PetscTruth*); 275 EXTERN int PetscObjectGetComm(PetscObject,MPI_Comm *); 276 EXTERN int PetscObjectGetCookie(PetscObject,int *); 277 EXTERN int PetscObjectGetType(PetscObject,int *); 278 EXTERN int PetscObjectSetName(PetscObject,const char[]); 279 EXTERN int PetscObjectGetName(PetscObject,char*[]); 280 EXTERN int PetscObjectReference(PetscObject); 281 EXTERN int PetscObjectGetReference(PetscObject,int*); 282 EXTERN int PetscObjectDereference(PetscObject); 283 EXTERN int PetscObjectGetNewTag(PetscObject,int *); 284 EXTERN int PetscCommGetNewTag(MPI_Comm,int *); 285 EXTERN int PetscObjectView(PetscObject,PetscViewer); 286 EXTERN int PetscObjectCompose(PetscObject,const char[],PetscObject); 287 EXTERN int PetscObjectQuery(PetscObject,const char[],PetscObject *); 288 EXTERN int PetscObjectComposeFunction(PetscObject,const char[],const char[],void (*)()); 289 #if defined(PETSC_USE_DYNAMIC_LIBRARIES) 290 #define PetscObjectComposeFunctionDynamic(a,b,c,d) PetscObjectComposeFunction(a,b,c,0) 291 #else 292 #define PetscObjectComposeFunctionDynamic(a,b,c,d) PetscObjectComposeFunction(a,b,c,(void (*)())(d)) 293 #endif 294 EXTERN int PetscObjectQueryFunction(PetscObject,const char[],void (**)()); 295 EXTERN int PetscObjectSetOptionsPrefix(PetscObject,const char[]); 296 EXTERN int PetscObjectAppendOptionsPrefix(PetscObject,const char[]); 297 EXTERN int PetscObjectPrependOptionsPrefix(PetscObject,const char[]); 298 EXTERN int PetscObjectGetOptionsPrefix(PetscObject,char*[]); 299 EXTERN int PetscObjectPublish(PetscObject); 300 EXTERN int PetscObjectChangeTypeName(PetscObject,char *); 301 EXTERN int PetscObjectRegisterDestroy(PetscObject); 302 EXTERN int PetscObjectRegisterDestroyAll(void); 303 EXTERN int PetscObjectName(PetscObject); 304 EXTERN int PetscTypeCompare(PetscObject,char*,PetscTruth*); 305 306 /* 307 Defines PETSc error handling. 308 */ 309 #include "petscerror.h" 310 311 /*S 312 PetscOList - Linked list of PETSc objects, accessable by string name 313 314 Level: advanced 315 316 .seealso: PetscOListAdd(), PetscOListDestroy(), PetscOListFind() 317 S*/ 318 typedef struct _PetscOList *PetscOList; 319 320 EXTERN int PetscOListDestroy(PetscOList *); 321 EXTERN int PetscOListFind(PetscOList,const char[],PetscObject*); 322 EXTERN int PetscOListReverseFind(PetscOList,PetscObject,char**); 323 EXTERN int PetscOListAdd(PetscOList *,const char[],PetscObject); 324 EXTERN int PetscOListDuplicate(PetscOList,PetscOList *); 325 326 /* 327 Dynamic library lists. Lists of names of routines in dynamic 328 link libraries that will be loaded as needed. 329 */ 330 EXTERN int PetscFListAdd(PetscFList*,const char[],const char[],void (*)()); 331 EXTERN int PetscFListDestroy(PetscFList*); 332 EXTERN int PetscFListFind(MPI_Comm,PetscFList,const char[],void (**)()); 333 EXTERN int PetscFListPrintTypes(MPI_Comm,FILE*,const char[],const char[],char *,char *,PetscFList); 334 #if defined(PETSC_USE_DYNAMIC_LIBRARIES) 335 #define PetscFListAddDynamic(a,b,p,c) PetscFListAdd(a,b,p,0) 336 #else 337 #define PetscFListAddDynamic(a,b,p,c) PetscFListAdd(a,b,p,(void (*)())c) 338 #endif 339 EXTERN int PetscFListDuplicate(PetscFList,PetscFList *); 340 EXTERN int PetscFListView(PetscFList,PetscViewer); 341 EXTERN int PetscFListConcat(const char [],const char [],char []); 342 EXTERN int PetscFListGet(PetscFList,char ***,int*); 343 344 /*S 345 PetscDLLibraryList - Linked list of dynamics libraries to search for functions 346 347 Level: advanced 348 349 PETSC_USE_DYNAMIC_LIBRARIES must be defined in petscconf.h to use dynamic libraries 350 351 .seealso: PetscDLLibraryOpen() 352 S*/ 353 typedef struct _PetscDLLibraryList *PetscDLLibraryList; 354 extern PetscDLLibraryList DLLibrariesLoaded; 355 EXTERN int PetscDLLibraryRetrieve(MPI_Comm,const char[],char *,int,PetscTruth *); 356 EXTERN int PetscDLLibraryOpen(MPI_Comm,const char[],void **); 357 EXTERN int PetscDLLibrarySym(MPI_Comm,PetscDLLibraryList *,const char[],const char[],void **); 358 EXTERN int PetscDLLibraryAppend(MPI_Comm,PetscDLLibraryList *,const char[]); 359 EXTERN int PetscDLLibraryPrepend(MPI_Comm,PetscDLLibraryList *,const char[]); 360 EXTERN int PetscDLLibraryClose(PetscDLLibraryList); 361 EXTERN int PetscDLLibraryPrintPath(void); 362 EXTERN int PetscDLLibraryGetInfo(void *,char *,char **); 363 364 /* 365 Mechanism for translating PETSc object representations between languages 366 Not currently used. 367 */ 368 typedef enum {PETSC_LANGUAGE_C,PETSC_LANGUAGE_CPP} PetscLanguage; 369 #define PETSC_LANGUAGE_F77 PETSC_LANGUAGE_C 370 EXTERN int PetscObjectComposeLanguage(PetscObject,PetscLanguage,void *); 371 EXTERN int PetscObjectQueryLanguage(PetscObject,PetscLanguage,void **); 372 373 /* 374 Useful utility routines 375 */ 376 EXTERN int PetscSplitOwnership(MPI_Comm,int*,int*); 377 EXTERN int PetscSplitOwnershipBlock(MPI_Comm,int,int*,int*); 378 EXTERN int PetscSequentialPhaseBegin(MPI_Comm,int); 379 EXTERN int PetscSequentialPhaseEnd(MPI_Comm,int); 380 EXTERN int PetscBarrier(PetscObject); 381 EXTERN int PetscMPIDump(FILE*); 382 383 #define PetscNot(a) ((a) ? PETSC_FALSE : PETSC_TRUE) 384 /* 385 Defines basic graphics available from PETSc. 386 */ 387 #include "petscdraw.h" 388 389 /* 390 Defines the base data structures for all PETSc objects 391 */ 392 #include "petschead.h" 393 394 /* 395 Defines PETSc profiling. 396 */ 397 #include "petsclog.h" 398 399 /* 400 For locking, unlocking and destroying AMS memories associated with 401 PETSc objects 402 */ 403 #if defined(PETSC_HAVE_AMS) 404 405 extern PetscTruth PetscAMSPublishAll; 406 #define PetscPublishAll(v) (PetscAMSPublishAll ? PetscObjectPublish((PetscObject)v) : 0) 407 #define PetscObjectTakeAccess(obj) ((((PetscObject)(obj))->amem == -1) ? 0 : AMS_Memory_take_access(((PetscObject)(obj))->amem)) 408 #define PetscObjectGrantAccess(obj) ((((PetscObject)(obj))->amem == -1) ? 0 : AMS_Memory_grant_access(((PetscObject)(obj))->amem)) 409 #define PetscObjectDepublish(obj) ((((PetscObject)(obj))->amem == -1) ? 0 : AMS_Memory_destroy(((PetscObject)(obj))->amem)); \ 410 ((PetscObject)(obj))->amem = -1; 411 412 #else 413 414 #define PetscPublishAll(v) 0 415 #define PetscObjectTakeAccess(obj) 0 416 #define PetscObjectGrantAccess(obj) 0 417 #define PetscObjectDepublish(obj) 0 418 419 #endif 420 421 422 423 /* 424 This code allows one to pass a MPI communicator between 425 C and Fortran. MPI 2.0 defines a standard API for doing this. 426 The code here is provided to allow PETSc to work with MPI 1.1 427 standard MPI libraries. 428 */ 429 EXTERN int MPICCommToFortranComm(MPI_Comm,int *); 430 EXTERN int MPIFortranCommToCComm(int,MPI_Comm*); 431 432 /* 433 Simple PETSc parallel IO for ASCII printing 434 */ 435 EXTERN int PetscFixFilename(const char[],char[]); 436 EXTERN int PetscFOpen(MPI_Comm,const char[],const char[],FILE**); 437 EXTERN int PetscFClose(MPI_Comm,FILE*); 438 EXTERN int PetscFPrintf(MPI_Comm,FILE*,const char[],...); 439 EXTERN int PetscPrintf(MPI_Comm,const char[],...); 440 EXTERN int (*PetscErrorPrintf)(const char[],...); 441 EXTERN int (*PetscHelpPrintf)(MPI_Comm,const char[],...); 442 EXTERN int PetscPOpen(MPI_Comm,char *,char*,const char[],FILE **); 443 EXTERN int PetscPClose(MPI_Comm,FILE*); 444 EXTERN int PetscSynchronizedPrintf(MPI_Comm,const char[],...); 445 EXTERN int PetscSynchronizedFPrintf(MPI_Comm,FILE*,const char[],...); 446 EXTERN int PetscSynchronizedFlush(MPI_Comm); 447 EXTERN int PetscSynchronizedFGets(MPI_Comm,FILE*,int,char[]); 448 EXTERN int PetscStartMatlab(MPI_Comm,char *,char*,FILE**); 449 EXTERN int PetscStartJava(MPI_Comm,char *,char*,FILE**); 450 451 EXTERN int PetscPopUpSelect(MPI_Comm,char*,char*,int,char**,int*); 452 /*S 453 PetscObjectContainer - Simple PETSc object that contains a pointer to any required data 454 455 Level: advanced 456 457 .seealso: PetscObject, PetscObjectContainerCreate() 458 S*/ 459 typedef struct _p_PetscObjectContainer* PetscObjectContainer; 460 EXTERN int PetscObjectContainerGetPointer(PetscObjectContainer,void **); 461 EXTERN int PetscObjectContainerSetPointer(PetscObjectContainer,void *); 462 EXTERN int PetscObjectContainerDestroy(PetscObjectContainer); 463 EXTERN int PetscObjectContainerCreate(MPI_Comm comm,PetscObjectContainer *); 464 465 /* 466 For incremental debugging 467 */ 468 extern PetscTruth PetscCompare; 469 EXTERN int PetscCompareDouble(double); 470 EXTERN int PetscCompareScalar(Scalar); 471 EXTERN int PetscCompareInt(int); 472 473 /* 474 For use in debuggers 475 */ 476 extern int PetscGlobalRank,PetscGlobalSize; 477 EXTERN int PetscIntView(int,int[],PetscViewer); 478 EXTERN int PetscDoubleView(int,double[],PetscViewer); 479 EXTERN int PetscScalarView(int,Scalar[],PetscViewer); 480 481 /* 482 Allows accessing Matlab Engine 483 */ 484 #include "petscengine.h" 485 486 /* 487 C code optimization is often enhanced by telling the compiler 488 that certain pointer arguments to functions are not aliased to 489 to other arguments. This is not yet ANSI C standard so we define 490 the macro "restrict" to indicate that the variable is not aliased 491 to any other argument. 492 */ 493 #if defined(PETSC_HAVE_RESTRICT) && !defined(__cplusplus) 494 #define restrict _Restrict 495 #else 496 #define restrict 497 #endif 498 499 /* 500 Determine if some of the kernel computation routines use 501 Fortran (rather than C) for the numerical calculations. On some machines 502 and compilers (like complex numbers) the Fortran version of the routines 503 is faster than the C/C++ versions. The flag PETSC_USE_FORTRAN_KERNELS 504 would be set in the petscconf.h file 505 */ 506 #if defined(PETSC_USE_FORTRAN_KERNELS) 507 508 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTAIJ) 509 #define PETSC_USE_FORTRAN_KERNEL_MULTAIJ 510 #endif 511 512 #if !defined(PETSC_USE_FORTRAN_KERNEL_NORMSQR) 513 #define PETSC_USE_FORTRAN_KERNEL_NORMSQR 514 #endif 515 516 #if !defined(PETSC_USE_FORTRAN_KERNEL_MAXPY) 517 #define PETSC_USE_FORTRAN_KERNEL_MAXPY 518 #endif 519 520 #if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ) 521 #define PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ 522 #endif 523 524 #if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ) 525 #define PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ 526 #endif 527 528 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ) 529 #define PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ 530 #endif 531 532 #if !defined(PETSC_USE_FORTRAN_KERNEL_MDOT) 533 #define PETSC_USE_FORTRAN_KERNEL_MDOT 534 #endif 535 536 #if !defined(PETSC_USE_FORTRAN_KERNEL_XTIMESY) 537 #define PETSC_USE_FORTRAN_KERNEL_XTIMESY 538 #endif 539 540 #endif 541 542 /* 543 Macros for indicating code that should be compiled with a C interface, 544 rather than a C++ interface. Any routines that are dynamically loaded 545 (such as the PCCreate_XXX() routines) must be wrapped so that the name 546 mangler does not change the functions symbol name. This just hides the 547 ugly extern "C" {} wrappers. 548 */ 549 #if defined(__cplusplus) 550 #define EXTERN_C_BEGIN extern "C" { 551 #define EXTERN_C_END } 552 #else 553 #define EXTERN_C_BEGIN 554 #define EXTERN_C_END 555 #endif 556 557 /* --------------------------------------------------------------------*/ 558 /* 559 DVF (win32) uses STDCALL calling convention by default. 560 The following is used by the fortran interface. 561 */ 562 #if defined (PETSC_USE_FORTRAN_STDCALL) 563 #define PETSC_STDCALL __stdcall 564 #else 565 #define PETSC_STDCALL 566 #endif 567 568 569 /*M 570 size - integer variable used to contain the number of processors in 571 the relevent MPI_Comm 572 573 Level: beginner 574 575 .seealso: rank, comm 576 M*/ 577 578 /*M 579 rank - integer variable used to contain the number of this processor relative 580 to all in the relevent MPI_Comm 581 582 Level: beginner 583 584 .seealso: size, comm 585 M*/ 586 587 /*M 588 comm - MPI_Comm used in the current routine or object 589 590 Level: beginner 591 592 .seealso: size, rank 593 M*/ 594 595 /*M 596 Scalar - PETSc type that represents either a double precision real number or 597 a double precision complex number if the code is compiled with BOPT=g_complex or O_complex 598 599 Level: beginner 600 601 M*/ 602 603 /* 604 The IBM include files define hz, here we hide it so that it may be used 605 as a regular user variable. 606 */ 607 #if defined(hz) 608 #undef hz 609 #endif 610 611 #endif 612 613 614