1 2 /* 3 This file defines the initialization of PETSc, including PetscInitialize() 4 */ 5 #define PETSC_DESIRE_COMPLEX 6 #include <petsc-private/petscimpl.h> /*I "petscsys.h" I*/ 7 #include <petscviewer.h> 8 9 #if defined(PETSC_HAVE_CUDA) 10 #include <cublas.h> 11 #endif 12 13 #include <petscthreadcomm.h> 14 15 #if defined(PETSC_USE_LOG) 16 extern PetscErrorCode PetscLogBegin_Private(void); 17 #endif 18 extern PetscBool PetscHMPIWorker; 19 20 #if defined(PETSC_SERIALIZE_FUNCTIONS) 21 PetscFPT PetscFPTData = 0; 22 #endif 23 24 #if defined(PETSC_HAVE_SAWS) 25 #include <petscviewersaws.h> 26 #endif 27 /* -----------------------------------------------------------------------------------------*/ 28 29 extern FILE *petsc_history; 30 31 extern PetscErrorCode PetscInitialize_DynamicLibraries(void); 32 extern PetscErrorCode PetscFinalize_DynamicLibraries(void); 33 extern PetscErrorCode PetscFunctionListPrintAll(void); 34 extern PetscErrorCode PetscSequentialPhaseBegin_Private(MPI_Comm,int); 35 extern PetscErrorCode PetscSequentialPhaseEnd_Private(MPI_Comm,int); 36 extern PetscErrorCode PetscCloseHistoryFile(FILE**); 37 38 /* user may set this BEFORE calling PetscInitialize() */ 39 MPI_Comm PETSC_COMM_WORLD = MPI_COMM_NULL; 40 41 PetscMPIInt Petsc_Counter_keyval = MPI_KEYVAL_INVALID; 42 PetscMPIInt Petsc_InnerComm_keyval = MPI_KEYVAL_INVALID; 43 PetscMPIInt Petsc_OuterComm_keyval = MPI_KEYVAL_INVALID; 44 45 /* 46 Declare and set all the string names of the PETSc enums 47 */ 48 const char *const PetscBools[] = {"FALSE","TRUE","PetscBool","PETSC_",0}; 49 const char *const PetscCopyModes[] = {"COPY_VALUES","OWN_POINTER","USE_POINTER","PetscCopyMode","PETSC_",0}; 50 const char *const PetscDataTypes[] = {"INT","DOUBLE","COMPLEX","LONG","SHORT","FLOAT", 51 "CHAR","LOGICAL","ENUM","BOOL","LONGDOUBLE","OBJECT","FUNCTION","PetscDataType","PETSC_",0}; 52 53 PetscBool PetscPreLoadingUsed = PETSC_FALSE; 54 PetscBool PetscPreLoadingOn = PETSC_FALSE; 55 56 PetscInt PetscHotRegionDepth; 57 58 /* 59 Checks the options database for initializations related to the 60 PETSc components 61 */ 62 #undef __FUNCT__ 63 #define __FUNCT__ "PetscOptionsCheckInitial_Components" 64 PetscErrorCode PetscOptionsCheckInitial_Components(void) 65 { 66 PetscBool flg1; 67 PetscErrorCode ierr; 68 69 PetscFunctionBegin; 70 ierr = PetscOptionsHasName(NULL,"-help",&flg1);CHKERRQ(ierr); 71 if (flg1) { 72 #if defined(PETSC_USE_LOG) 73 MPI_Comm comm = PETSC_COMM_WORLD; 74 ierr = (*PetscHelpPrintf)(comm,"------Additional PETSc component options--------\n");CHKERRQ(ierr); 75 ierr = (*PetscHelpPrintf)(comm," -log_summary_exclude: <vec,mat,pc.ksp,snes>\n");CHKERRQ(ierr); 76 ierr = (*PetscHelpPrintf)(comm," -info_exclude: <null,vec,mat,pc,ksp,snes,ts>\n");CHKERRQ(ierr); 77 ierr = (*PetscHelpPrintf)(comm,"-----------------------------------------------\n");CHKERRQ(ierr); 78 #endif 79 } 80 PetscFunctionReturn(0); 81 } 82 83 #undef __FUNCT__ 84 #define __FUNCT__ "PetscInitializeNoPointers" 85 /* 86 PetscInitializeNoPointers - Calls PetscInitialize() from C/C++ without the pointers to argc and args 87 88 Collective 89 90 Level: advanced 91 92 Notes: this is called only by the PETSc MATLAB and Julia interface. Even though it might start MPI it sets the flag to 93 indicate that it did NOT start MPI so that the PetscFinalize() does not end MPI, thus allowing PetscInitialize() to 94 be called multiple times from MATLAB and Julia without the problem of trying to initialize MPI more than once. 95 96 Turns off PETSc signal handling because that can interact with MATLAB's signal handling causing random crashes. 97 98 .seealso: PetscInitialize(), PetscInitializeFortran(), PetscInitializeNoArguments() 99 */ 100 PetscErrorCode PetscInitializeNoPointers(int argc,char **args,const char *filename,const char *help) 101 { 102 PetscErrorCode ierr; 103 int myargc = argc; 104 char **myargs = args; 105 106 PetscFunctionBegin; 107 ierr = PetscInitialize(&myargc,&myargs,filename,help);CHKERRQ(ierr); 108 ierr = PetscPopSignalHandler();CHKERRQ(ierr); 109 PetscBeganMPI = PETSC_FALSE; 110 PetscFunctionReturn(ierr); 111 } 112 113 #undef __FUNCT__ 114 #define __FUNCT__ "PetscGetPETSC_COMM_SELF" 115 /* 116 Used by MATLAB and Julia interface to get communicator 117 */ 118 PetscErrorCode PetscGetPETSC_COMM_SELF(MPI_Comm *comm) 119 { 120 PetscFunctionBegin; 121 *comm = PETSC_COMM_SELF; 122 PetscFunctionReturn(0); 123 } 124 125 #undef __FUNCT__ 126 #define __FUNCT__ "PetscInitializeNoArguments" 127 /*@C 128 PetscInitializeNoArguments - Calls PetscInitialize() from C/C++ without 129 the command line arguments. 130 131 Collective 132 133 Level: advanced 134 135 .seealso: PetscInitialize(), PetscInitializeFortran() 136 @*/ 137 PetscErrorCode PetscInitializeNoArguments(void) 138 { 139 PetscErrorCode ierr; 140 int argc = 0; 141 char **args = 0; 142 143 PetscFunctionBegin; 144 ierr = PetscInitialize(&argc,&args,NULL,NULL); 145 PetscFunctionReturn(ierr); 146 } 147 148 #undef __FUNCT__ 149 #define __FUNCT__ "PetscInitialized" 150 /*@ 151 PetscInitialized - Determine whether PETSc is initialized. 152 153 Level: beginner 154 155 .seealso: PetscInitialize(), PetscInitializeNoArguments(), PetscInitializeFortran() 156 @*/ 157 PetscErrorCode PetscInitialized(PetscBool *isInitialized) 158 { 159 *isInitialized = PetscInitializeCalled; 160 return 0; 161 } 162 163 #undef __FUNCT__ 164 #define __FUNCT__ "PetscFinalized" 165 /*@ 166 PetscFinalized - Determine whether PetscFinalize() has been called yet 167 168 Level: developer 169 170 .seealso: PetscInitialize(), PetscInitializeNoArguments(), PetscInitializeFortran() 171 @*/ 172 PetscErrorCode PetscFinalized(PetscBool *isFinalized) 173 { 174 *isFinalized = PetscFinalizeCalled; 175 return 0; 176 } 177 178 extern PetscErrorCode PetscOptionsCheckInitial_Private(void); 179 180 /* 181 This function is the MPI reduction operation used to compute the sum of the 182 first half of the datatype and the max of the second half. 183 */ 184 MPI_Op PetscMaxSum_Op = 0; 185 186 #undef __FUNCT__ 187 #define __FUNCT__ "PetscMaxSum_Local" 188 PETSC_EXTERN void MPIAPI PetscMaxSum_Local(void *in,void *out,int *cnt,MPI_Datatype *datatype) 189 { 190 PetscInt *xin = (PetscInt*)in,*xout = (PetscInt*)out,i,count = *cnt; 191 192 PetscFunctionBegin; 193 if (*datatype != MPIU_2INT) { 194 (*PetscErrorPrintf)("Can only handle MPIU_2INT data types"); 195 MPI_Abort(MPI_COMM_WORLD,1); 196 } 197 198 for (i=0; i<count; i++) { 199 xout[2*i] = PetscMax(xout[2*i],xin[2*i]); 200 xout[2*i+1] += xin[2*i+1]; 201 } 202 PetscFunctionReturnVoid(); 203 } 204 205 /* 206 Returns the max of the first entry owned by this processor and the 207 sum of the second entry. 208 209 The reason nprocs[2*i] contains lengths nprocs[2*i+1] contains flag of 1 if length is nonzero 210 is so that the PetscMaxSum_Op() can set TWO values, if we passed in only nprocs[i] with lengths 211 there would be no place to store the both needed results. 212 */ 213 #undef __FUNCT__ 214 #define __FUNCT__ "PetscMaxSum" 215 PetscErrorCode PetscMaxSum(MPI_Comm comm,const PetscInt nprocs[],PetscInt *max,PetscInt *sum) 216 { 217 PetscMPIInt size,rank; 218 struct {PetscInt max,sum;} *work; 219 PetscErrorCode ierr; 220 221 PetscFunctionBegin; 222 ierr = MPI_Comm_size(comm,&size);CHKERRQ(ierr); 223 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 224 ierr = PetscMalloc(size*sizeof(*work),&work);CHKERRQ(ierr); 225 ierr = MPI_Allreduce((void*)nprocs,work,size,MPIU_2INT,PetscMaxSum_Op,comm);CHKERRQ(ierr); 226 *max = work[rank].max; 227 *sum = work[rank].sum; 228 ierr = PetscFree(work);CHKERRQ(ierr); 229 PetscFunctionReturn(0); 230 } 231 232 /* ----------------------------------------------------------------------------*/ 233 MPI_Op PetscADMax_Op = 0; 234 235 #undef __FUNCT__ 236 #define __FUNCT__ "PetscADMax_Local" 237 PETSC_EXTERN void MPIAPI PetscADMax_Local(void *in,void *out,PetscMPIInt *cnt,MPI_Datatype *datatype) 238 { 239 PetscScalar *xin = (PetscScalar*)in,*xout = (PetscScalar*)out; 240 PetscInt i,count = *cnt; 241 242 PetscFunctionBegin; 243 if (*datatype != MPIU_2SCALAR) { 244 (*PetscErrorPrintf)("Can only handle MPIU_2SCALAR data (i.e. double or complex) types"); 245 MPI_Abort(MPI_COMM_WORLD,1); 246 } 247 248 for (i=0; i<count; i++) { 249 if (PetscRealPart(xout[2*i]) < PetscRealPart(xin[2*i])) { 250 xout[2*i] = xin[2*i]; 251 xout[2*i+1] = xin[2*i+1]; 252 } 253 } 254 PetscFunctionReturnVoid(); 255 } 256 257 MPI_Op PetscADMin_Op = 0; 258 259 #undef __FUNCT__ 260 #define __FUNCT__ "PetscADMin_Local" 261 PETSC_EXTERN void MPIAPI PetscADMin_Local(void *in,void *out,PetscMPIInt *cnt,MPI_Datatype *datatype) 262 { 263 PetscScalar *xin = (PetscScalar*)in,*xout = (PetscScalar*)out; 264 PetscInt i,count = *cnt; 265 266 PetscFunctionBegin; 267 if (*datatype != MPIU_2SCALAR) { 268 (*PetscErrorPrintf)("Can only handle MPIU_2SCALAR data (i.e. double or complex) types"); 269 MPI_Abort(MPI_COMM_WORLD,1); 270 } 271 272 for (i=0; i<count; i++) { 273 if (PetscRealPart(xout[2*i]) > PetscRealPart(xin[2*i])) { 274 xout[2*i] = xin[2*i]; 275 xout[2*i+1] = xin[2*i+1]; 276 } 277 } 278 PetscFunctionReturnVoid(); 279 } 280 /* ---------------------------------------------------------------------------------------*/ 281 282 #if (defined(PETSC_HAVE_COMPLEX) && !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX)) || defined(PETSC_USE_REAL___FLOAT128) 283 MPI_Op MPIU_SUM = 0; 284 285 #undef __FUNCT__ 286 #define __FUNCT__ "PetscSum_Local" 287 PETSC_EXTERN void PetscSum_Local(void *in,void *out,PetscMPIInt *cnt,MPI_Datatype *datatype) 288 { 289 PetscInt i,count = *cnt; 290 291 PetscFunctionBegin; 292 if (*datatype == MPIU_REAL) { 293 PetscReal *xin = (PetscReal*)in,*xout = (PetscReal*)out; 294 for (i=0; i<count; i++) xout[i] += xin[i]; 295 } 296 #if defined(PETSC_HAVE_COMPLEX) 297 else if (*datatype == MPIU_COMPLEX) { 298 PetscComplex *xin = (PetscComplex*)in,*xout = (PetscComplex*)out; 299 for (i=0; i<count; i++) xout[i] += xin[i]; 300 } 301 #endif 302 else { 303 (*PetscErrorPrintf)("Can only handle MPIU_REAL or MPIU_COMPLEX data types"); 304 MPI_Abort(MPI_COMM_WORLD,1); 305 } 306 PetscFunctionReturnVoid(); 307 } 308 #endif 309 310 #if defined(PETSC_USE_REAL___FLOAT128) 311 MPI_Op MPIU_MAX = 0; 312 MPI_Op MPIU_MIN = 0; 313 314 #undef __FUNCT__ 315 #define __FUNCT__ "PetscMax_Local" 316 PETSC_EXTERN void PetscMax_Local(void *in,void *out,PetscMPIInt *cnt,MPI_Datatype *datatype) 317 { 318 PetscInt i,count = *cnt; 319 320 PetscFunctionBegin; 321 if (*datatype == MPIU_REAL) { 322 PetscReal *xin = (PetscReal*)in,*xout = (PetscReal*)out; 323 for (i=0; i<count; i++) xout[i] = PetscMax(xout[i],xin[i]); 324 } 325 #if defined(PETSC_HAVE_COMPLEX) 326 else if (*datatype == MPIU_COMPLEX) { 327 PetscComplex *xin = (PetscComplex*)in,*xout = (PetscComplex*)out; 328 for (i=0; i<count; i++) { 329 xout[i] = PetscRealPartComplex(xout[i])<PetscRealPartComplex(xin[i]) ? xin[i] : xout[i]; 330 } 331 } 332 #endif 333 else { 334 (*PetscErrorPrintf)("Can only handle MPIU_REAL or MPIU_COMPLEX data types"); 335 MPI_Abort(MPI_COMM_WORLD,1); 336 } 337 PetscFunctionReturnVoid(); 338 } 339 340 #undef __FUNCT__ 341 #define __FUNCT__ "PetscMin_Local" 342 PETSC_EXTERN void PetscMin_Local(void *in,void *out,PetscMPIInt *cnt,MPI_Datatype *datatype) 343 { 344 PetscInt i,count = *cnt; 345 346 PetscFunctionBegin; 347 if (*datatype == MPIU_REAL) { 348 PetscReal *xin = (PetscReal*)in,*xout = (PetscReal*)out; 349 for (i=0; i<count; i++) xout[i] = PetscMin(xout[i],xin[i]); 350 } 351 #if defined(PETSC_HAVE_COMPLEX) 352 else if (*datatype == MPIU_COMPLEX) { 353 PetscComplex *xin = (PetscComplex*)in,*xout = (PetscComplex*)out; 354 for (i=0; i<count; i++) { 355 xout[i] = PetscRealPartComplex(xout[i])>PetscRealPartComplex(xin[i]) ? xin[i] : xout[i]; 356 } 357 } 358 #endif 359 else { 360 (*PetscErrorPrintf)("Can only handle MPIU_REAL or MPIU_SCALAR data (i.e. double or complex) types"); 361 MPI_Abort(MPI_COMM_WORLD,1); 362 } 363 PetscFunctionReturnVoid(); 364 } 365 #endif 366 367 #undef __FUNCT__ 368 #define __FUNCT__ "Petsc_DelCounter" 369 /* 370 Private routine to delete internal tag/name counter storage when a communicator is freed. 371 372 This is called by MPI, not by users. This is called by MPI_Comm_free() when the communicator that has this data as an attribute is freed. 373 374 Note: this is declared extern "C" because it is passed to MPI_Keyval_create() 375 376 */ 377 PETSC_EXTERN PetscMPIInt MPIAPI Petsc_DelCounter(MPI_Comm comm,PetscMPIInt keyval,void *count_val,void *extra_state) 378 { 379 PetscErrorCode ierr; 380 381 PetscFunctionBegin; 382 ierr = PetscInfo1(0,"Deleting counter data in an MPI_Comm %ld\n",(long)comm);if (ierr) PetscFunctionReturn((PetscMPIInt)ierr); 383 ierr = PetscFree(count_val);if (ierr) PetscFunctionReturn((PetscMPIInt)ierr); 384 PetscFunctionReturn(MPI_SUCCESS); 385 } 386 387 #undef __FUNCT__ 388 #define __FUNCT__ "Petsc_DelComm_Outer" 389 /* 390 This is invoked on the outer comm as a result of either PetscCommDestroy() (via MPI_Attr_delete) or when the user 391 calls MPI_Comm_free(). 392 393 This is the only entry point for breaking the links between inner and outer comms. 394 395 This is called by MPI, not by users. This is called when MPI_Comm_free() is called on the communicator. 396 397 Note: this is declared extern "C" because it is passed to MPI_Keyval_create() 398 399 */ 400 PETSC_EXTERN PetscMPIInt MPIAPI Petsc_DelComm_Outer(MPI_Comm comm,PetscMPIInt keyval,void *attr_val,void *extra_state) 401 { 402 PetscErrorCode ierr; 403 PetscMPIInt flg; 404 union {MPI_Comm comm; void *ptr;} icomm,ocomm; 405 406 PetscFunctionBegin; 407 if (keyval != Petsc_InnerComm_keyval) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_CORRUPT,"Unexpected keyval"); 408 icomm.ptr = attr_val; 409 410 ierr = MPI_Attr_get(icomm.comm,Petsc_OuterComm_keyval,&ocomm,&flg);CHKERRQ(ierr); 411 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_CORRUPT,"Inner MPI_Comm does not have expected reference to outer comm"); 412 if (ocomm.comm != comm) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_CORRUPT,"Inner MPI_Comm has reference to non-matching outer comm"); 413 ierr = MPI_Attr_delete(icomm.comm,Petsc_OuterComm_keyval);CHKERRQ(ierr); /* Calls Petsc_DelComm_Inner */ 414 ierr = PetscInfo1(0,"User MPI_Comm %ld is being freed after removing reference from inner PETSc comm to this outer comm\n",(long)comm);if (ierr) PetscFunctionReturn((PetscMPIInt)ierr); 415 PetscFunctionReturn(MPI_SUCCESS); 416 } 417 418 #undef __FUNCT__ 419 #define __FUNCT__ "Petsc_DelComm_Inner" 420 /* 421 * This is invoked on the inner comm when Petsc_DelComm_Outer calls MPI_Attr_delete. It should not be reached any other way. 422 */ 423 PETSC_EXTERN PetscMPIInt MPIAPI Petsc_DelComm_Inner(MPI_Comm comm,PetscMPIInt keyval,void *attr_val,void *extra_state) 424 { 425 PetscErrorCode ierr; 426 427 PetscFunctionBegin; 428 ierr = PetscInfo1(0,"Removing reference to PETSc communicator embedded in a user MPI_Comm %ld\n",(long)comm);if (ierr) PetscFunctionReturn((PetscMPIInt)ierr); 429 PetscFunctionReturn(MPI_SUCCESS); 430 } 431 432 #if defined(PETSC_USE_PETSC_MPI_EXTERNAL32) 433 #if !defined(PETSC_WORDS_BIGENDIAN) 434 PETSC_EXTERN PetscMPIInt PetscDataRep_extent_fn(MPI_Datatype,MPI_Aint*,void*); 435 PETSC_EXTERN PetscMPIInt PetscDataRep_read_conv_fn(void*, MPI_Datatype,PetscMPIInt,void*,MPI_Offset,void*); 436 PETSC_EXTERN PetscMPIInt PetscDataRep_write_conv_fn(void*, MPI_Datatype,PetscMPIInt,void*,MPI_Offset,void*); 437 #endif 438 #endif 439 440 int PetscGlobalArgc = 0; 441 char **PetscGlobalArgs = 0; 442 PetscSegBuffer PetscCitationsList; 443 444 #undef __FUNCT__ 445 #define __FUNCT__ "PetscCitationsInitialize" 446 PetscErrorCode PetscCitationsInitialize() 447 { 448 PetscErrorCode ierr; 449 450 PetscFunctionBegin; 451 ierr = PetscSegBufferCreate(1,10000,&PetscCitationsList);CHKERRQ(ierr); 452 ierr = PetscCitationsRegister("@TechReport{petsc-user-ref,\n Author = {Satish Balay and Jed Brown and and Kris Buschelman and Victor Eijkhout\n and William D. Gropp and Dinesh Kaushik and Matthew G. Knepley\n and Lois Curfman McInnes and Barry F. Smith and Hong Zhang},\n Title = {{PETS}c Users Manual},\n Number = {ANL-95/11 - Revision 3.4},\n Institution = {Argonne National Laboratory},\n Year = {2013}\n}\n",NULL);CHKERRQ(ierr); 453 ierr = PetscCitationsRegister("@InProceedings{petsc-efficient,\n Author = {Satish Balay and William D. Gropp and Lois Curfman McInnes and Barry F. Smith},\n Title = {Efficient Management of Parallelism in Object Oriented Numerical Software Libraries},\n Booktitle = {Modern Software Tools in Scientific Computing},\n Editor = {E. Arge and A. M. Bruaset and H. P. Langtangen},\n Pages = {163--202},\n Publisher = {Birkh{\\\"{a}}user Press},\n Year = {1997}\n}\n",NULL);CHKERRQ(ierr); 454 PetscFunctionReturn(0); 455 } 456 457 #undef __FUNCT__ 458 #define __FUNCT__ "PetscGetArgs" 459 /*@C 460 PetscGetArgs - Allows you to access the raw command line arguments anywhere 461 after PetscInitialize() is called but before PetscFinalize(). 462 463 Not Collective 464 465 Output Parameters: 466 + argc - count of number of command line arguments 467 - args - the command line arguments 468 469 Level: intermediate 470 471 Notes: 472 This is usually used to pass the command line arguments into other libraries 473 that are called internally deep in PETSc or the application. 474 475 The first argument contains the program name as is normal for C arguments. 476 477 Concepts: command line arguments 478 479 .seealso: PetscFinalize(), PetscInitializeFortran(), PetscGetArguments() 480 481 @*/ 482 PetscErrorCode PetscGetArgs(int *argc,char ***args) 483 { 484 PetscFunctionBegin; 485 if (!PetscInitializeCalled && PetscFinalizeCalled) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ORDER,"You must call after PetscInitialize() but before PetscFinalize()"); 486 *argc = PetscGlobalArgc; 487 *args = PetscGlobalArgs; 488 PetscFunctionReturn(0); 489 } 490 491 #undef __FUNCT__ 492 #define __FUNCT__ "PetscGetArguments" 493 /*@C 494 PetscGetArguments - Allows you to access the command line arguments anywhere 495 after PetscInitialize() is called but before PetscFinalize(). 496 497 Not Collective 498 499 Output Parameters: 500 . args - the command line arguments 501 502 Level: intermediate 503 504 Notes: 505 This does NOT start with the program name and IS null terminated (final arg is void) 506 507 Concepts: command line arguments 508 509 .seealso: PetscFinalize(), PetscInitializeFortran(), PetscGetArgs(), PetscFreeArguments() 510 511 @*/ 512 PetscErrorCode PetscGetArguments(char ***args) 513 { 514 PetscInt i,argc = PetscGlobalArgc; 515 PetscErrorCode ierr; 516 517 PetscFunctionBegin; 518 if (!PetscInitializeCalled && PetscFinalizeCalled) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ORDER,"You must call after PetscInitialize() but before PetscFinalize()"); 519 if (!argc) {*args = 0; PetscFunctionReturn(0);} 520 ierr = PetscMalloc(argc*sizeof(char*),args);CHKERRQ(ierr); 521 for (i=0; i<argc-1; i++) { 522 ierr = PetscStrallocpy(PetscGlobalArgs[i+1],&(*args)[i]);CHKERRQ(ierr); 523 } 524 (*args)[argc-1] = 0; 525 PetscFunctionReturn(0); 526 } 527 528 #undef __FUNCT__ 529 #define __FUNCT__ "PetscFreeArguments" 530 /*@C 531 PetscFreeArguments - Frees the memory obtained with PetscGetArguments() 532 533 Not Collective 534 535 Output Parameters: 536 . args - the command line arguments 537 538 Level: intermediate 539 540 Concepts: command line arguments 541 542 .seealso: PetscFinalize(), PetscInitializeFortran(), PetscGetArgs(), PetscGetArguments() 543 544 @*/ 545 PetscErrorCode PetscFreeArguments(char **args) 546 { 547 PetscInt i = 0; 548 PetscErrorCode ierr; 549 550 PetscFunctionBegin; 551 if (!args) PetscFunctionReturn(0); 552 while (args[i]) { 553 ierr = PetscFree(args[i]);CHKERRQ(ierr); 554 i++; 555 } 556 ierr = PetscFree(args);CHKERRQ(ierr); 557 PetscFunctionReturn(0); 558 } 559 560 #if defined(PETSC_HAVE_SAWS) 561 #undef __FUNCT__ 562 #define __FUNCT__ "PetscInitializeSAWs" 563 PetscErrorCode PetscInitializeSAWs(const char help[]) 564 { 565 if (!PetscGlobalRank) { 566 char cert[PETSC_MAX_PATH_LEN],root[PETSC_MAX_PATH_LEN],*intro,programname[64],*appline; 567 int port; 568 PetscBool flg,rootlocal = PETSC_FALSE,flg2; 569 size_t applinelen,introlen; 570 PetscErrorCode ierr; 571 572 ierr = PetscOptionsHasName(NULL,"-saws_log",&flg);CHKERRQ(ierr); 573 if (flg) { 574 char sawslog[PETSC_MAX_PATH_LEN]; 575 576 ierr = PetscOptionsGetString(NULL,"-saws_log",sawslog,PETSC_MAX_PATH_LEN,NULL);CHKERRQ(ierr); 577 if (sawslog[0]) { 578 PetscStackCallSAWs(SAWs_Set_Use_Logfile,(sawslog)); 579 } else { 580 PetscStackCallSAWs(SAWs_Set_Use_Logfile,(NULL)); 581 } 582 } 583 ierr = PetscOptionsGetString(NULL,"-saws_https",cert,PETSC_MAX_PATH_LEN,&flg);CHKERRQ(ierr); 584 if (flg) { 585 PetscStackCallSAWs(SAWs_Set_Use_HTTPS,(cert)); 586 } 587 ierr = PetscOptionsGetInt(NULL,"-saws_port",&port,&flg);CHKERRQ(ierr); 588 if (flg) { 589 PetscStackCallSAWs(SAWs_Set_Port,(port)); 590 } 591 ierr = PetscOptionsGetString(NULL,"-saws_root",root,PETSC_MAX_PATH_LEN,&flg);CHKERRQ(ierr); 592 if (flg) { 593 PetscStackCallSAWs(SAWs_Set_Document_Root,(root));CHKERRQ(ierr); 594 ierr = PetscStrcmp(root,".",&rootlocal);CHKERRQ(ierr); 595 } 596 ierr = PetscOptionsHasName(NULL,"-saws_local",&flg2);CHKERRQ(ierr); 597 if (flg2) { 598 char jsdir[PETSC_MAX_PATH_LEN]; 599 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"-saws_local option requires -saws_root option"); 600 ierr = PetscSNPrintf(jsdir,PETSC_MAX_PATH_LEN,"%s/js",root);CHKERRQ(ierr); 601 ierr = PetscTestDirectory(jsdir,'r',&flg);CHKERRQ(ierr); 602 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_FILE_READ,"-saws_local option requires js directory in root directory"); 603 PetscStackCallSAWs(SAWs_Set_Local_JSHeader,());CHKERRQ(ierr); 604 } 605 ierr = PetscGetProgramName(programname,64);CHKERRQ(ierr); 606 ierr = PetscStrlen(help,&applinelen);CHKERRQ(ierr); 607 introlen = 4096 + applinelen; 608 applinelen += 256; 609 ierr = PetscMalloc(applinelen,&appline);CHKERRQ(ierr); 610 ierr = PetscMalloc(introlen,&intro);CHKERRQ(ierr); 611 612 if (rootlocal) { 613 ierr = PetscSNPrintf(appline,applinelen,"%s.c.html",programname);CHKERRQ(ierr); 614 ierr = PetscTestFile(appline,'r',&rootlocal);CHKERRQ(ierr); 615 } 616 if (rootlocal && help) { 617 ierr = PetscSNPrintf(appline,applinelen,"<center> Running <a href=\"%s.c.html\">%s</a></center><br><pre>%s</pre><br>\n",programname,programname,help); 618 } else if (help) { 619 ierr = PetscSNPrintf(appline,applinelen,"<center>Running %s </center><br><pre>%s</pre><br>\n",programname,help); 620 } else { 621 ierr = PetscSNPrintf(appline,applinelen,"<center> Running %s</center><br>\n",programname); 622 } 623 624 ierr = PetscSNPrintf(intro,introlen,"<body>\n" 625 "<center><h2> <a href=\"http://www.mcs.anl.gov/petsc\">PETSc</a> Application Web server powered by <a href=\"https://bitbucket.org/saws/saws\">SAWs</a> </h2></center>\n" 626 "<center>This is the default PETSc application dashboard, from it you can access any published PETSc objects or logging data</center><br>\n" 627 "%s",appline); 628 PetscStackCallSAWs(SAWs_Set_Body,("index.html",0,intro)); 629 ierr = PetscFree(intro);CHKERRQ(ierr); 630 ierr = PetscFree(appline);CHKERRQ(ierr); 631 PetscStackCallSAWs(SAWs_Initialize,()); 632 ierr = PetscCitationsRegister("@TechReport{ saws," 633 "Author = {Matt Otten and Jed Brown and Barry Smith}," 634 "Title = {Scientific Application Web Server (SAWs) Users Manual}," 635 "Institution = {Argonne National Laboratory}," 636 "Year = 2013}",NULL);CHKERRQ(ierr); 637 } 638 PetscFunctionReturn(0); 639 } 640 #endif 641 642 #undef __FUNCT__ 643 #define __FUNCT__ "PetscInitialize" 644 /*@C 645 PetscInitialize - Initializes the PETSc database and MPI. 646 PetscInitialize() calls MPI_Init() if that has yet to be called, 647 so this routine should always be called near the beginning of 648 your program -- usually the very first line! 649 650 Collective on MPI_COMM_WORLD or PETSC_COMM_WORLD if it has been set 651 652 Input Parameters: 653 + argc - count of number of command line arguments 654 . args - the command line arguments 655 . file - [optional] PETSc database file, also checks ~username/.petscrc and .petscrc use NULL to not check for 656 code specific file. Use -skip_petscrc in the code specific file to skip the .petscrc files 657 - help - [optional] Help message to print, use NULL for no message 658 659 If you wish PETSc code to run ONLY on a subcommunicator of MPI_COMM_WORLD, create that 660 communicator first and assign it to PETSC_COMM_WORLD BEFORE calling PetscInitialize(). Thus if you are running a 661 four process job and two processes will run PETSc and have PetscInitialize() and PetscFinalize() and two process will not, 662 then do this. If ALL processes in the job are using PetscInitialize() and PetscFinalize() then you don't need to do this, even 663 if different subcommunicators of the job are doing different things with PETSc. 664 665 Options Database Keys: 666 + -start_in_debugger [noxterm,dbx,xdb,gdb,...] - Starts program in debugger 667 . -on_error_attach_debugger [noxterm,dbx,xdb,gdb,...] - Starts debugger when error detected 668 . -on_error_emacs <machinename> causes emacsclient to jump to error file 669 . -on_error_abort calls abort() when error detected (no traceback) 670 . -on_error_mpiabort calls MPI_abort() when error detected 671 . -error_output_stderr prints error messages to stderr instead of the default stdout 672 . -error_output_none does not print the error messages (but handles errors in the same way as if this was not called) 673 . -debugger_nodes [node1,node2,...] - Indicates nodes to start in debugger 674 . -debugger_pause [sleeptime] (in seconds) - Pauses debugger 675 . -stop_for_debugger - Print message on how to attach debugger manually to 676 process and wait (-debugger_pause) seconds for attachment 677 . -malloc - Indicates use of PETSc error-checking malloc (on by default for debug version of libraries) 678 . -malloc no - Indicates not to use error-checking malloc 679 . -malloc_debug - check for memory corruption at EVERY malloc or free 680 . -malloc_dump - prints a list of all unfreed memory at the end of the run 681 . -malloc_test - like -malloc_dump -malloc_debug, but only active for debugging builds 682 . -fp_trap - Stops on floating point exceptions (Note that on the 683 IBM RS6000 this slows code by at least a factor of 10.) 684 . -no_signal_handler - Indicates not to trap error signals 685 . -shared_tmp - indicates /tmp directory is shared by all processors 686 . -not_shared_tmp - each processor has own /tmp 687 . -tmp - alternative name of /tmp directory 688 . -get_total_flops - returns total flops done by all processors 689 - -memory_info - Print memory usage at end of run 690 691 Options Database Keys for Profiling: 692 See the <a href="../../docs/manual.pdf#nameddest=ch_profiling">profiling chapter of the users manual</a> for details. 693 + -info <optional filename> - Prints verbose information to the screen 694 . -info_exclude <null,vec,mat,pc,ksp,snes,ts> - Excludes some of the verbose messages 695 . -log_sync - Log the synchronization in scatters, inner products and norms 696 . -log_trace [filename] - Print traces of all PETSc calls to the screen (useful to determine where a program 697 hangs without running in the debugger). See PetscLogTraceBegin(). 698 . -log_summary [filename] - Prints summary of flop and timing information to screen. If the filename is specified the 699 summary is written to the file. See PetscLogView(). 700 . -log_summary_python [filename] - Prints data on of flop and timing usage to a file or screen. See PetscLogPrintSViewPython(). 701 . -log_all [filename] - Logs extensive profiling information See PetscLogDump(). 702 . -log [filename] - Logs basic profiline information See PetscLogDump(). 703 - -log_mpe [filename] - Creates a logfile viewable by the utility Jumpshot (in MPICH distribution) 704 705 Only one of -log_trace, -log_summary, -log_all, -log, or -log_mpe may be used at a time 706 707 Environmental Variables: 708 + PETSC_TMP - alternative tmp directory 709 . PETSC_SHARED_TMP - tmp is shared by all processes 710 . PETSC_NOT_SHARED_TMP - each process has its own private tmp 711 . PETSC_VIEWER_SOCKET_PORT - socket number to use for socket viewer 712 - PETSC_VIEWER_SOCKET_MACHINE - machine to use for socket viewer to connect to 713 714 715 Level: beginner 716 717 Notes: 718 If for some reason you must call MPI_Init() separately, call 719 it before PetscInitialize(). 720 721 Fortran Version: 722 In Fortran this routine has the format 723 $ call PetscInitialize(file,ierr) 724 725 + ierr - error return code 726 - file - [optional] PETSc database file, also checks ~username/.petscrc and .petscrc use NULL_CHARACTER to not check for 727 code specific file. Use -skip_petscrc in the code specific file to skip the .petscrc files 728 729 Important Fortran Note: 730 In Fortran, you MUST use NULL_CHARACTER to indicate a 731 null character string; you CANNOT just use NULL as 732 in the C version. See the <a href="../../docs/manual.pdf">users manual</a> for details. 733 734 If your main program is C but you call Fortran code that also uses PETSc you need to call PetscInitializeFortran() soon after 735 calling PetscInitialize(). 736 737 Concepts: initializing PETSc 738 739 .seealso: PetscFinalize(), PetscInitializeFortran(), PetscGetArgs(), PetscInitializeNoArguments() 740 741 @*/ 742 PetscErrorCode PetscInitialize(int *argc,char ***args,const char file[],const char help[]) 743 { 744 PetscErrorCode ierr; 745 PetscMPIInt flag, size; 746 PetscInt nodesize; 747 PetscBool flg; 748 char hostname[256]; 749 750 PetscFunctionBegin; 751 if (PetscInitializeCalled) PetscFunctionReturn(0); 752 753 /* these must be initialized in a routine, not as a constant declaration*/ 754 PETSC_STDOUT = stdout; 755 PETSC_STDERR = stderr; 756 757 ierr = PetscOptionsCreate();CHKERRQ(ierr); 758 759 /* 760 We initialize the program name here (before MPI_Init()) because MPICH has a bug in 761 it that it sets args[0] on all processors to be args[0] on the first processor. 762 */ 763 if (argc && *argc) { 764 ierr = PetscSetProgramName(**args);CHKERRQ(ierr); 765 } else { 766 ierr = PetscSetProgramName("Unknown Name");CHKERRQ(ierr); 767 } 768 769 ierr = MPI_Initialized(&flag);CHKERRQ(ierr); 770 if (!flag) { 771 if (PETSC_COMM_WORLD != MPI_COMM_NULL) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"You cannot set PETSC_COMM_WORLD if you have not initialized MPI first"); 772 #if defined(PETSC_HAVE_MPI_INIT_THREAD) 773 { 774 PetscMPIInt provided; 775 ierr = MPI_Init_thread(argc,args,MPI_THREAD_FUNNELED,&provided);CHKERRQ(ierr); 776 } 777 #else 778 ierr = MPI_Init(argc,args);CHKERRQ(ierr); 779 #endif 780 PetscBeganMPI = PETSC_TRUE; 781 } 782 if (argc && args) { 783 PetscGlobalArgc = *argc; 784 PetscGlobalArgs = *args; 785 } 786 PetscFinalizeCalled = PETSC_FALSE; 787 788 if (PETSC_COMM_WORLD == MPI_COMM_NULL) PETSC_COMM_WORLD = MPI_COMM_WORLD; 789 ierr = MPI_Comm_set_errhandler(PETSC_COMM_WORLD,MPI_ERRORS_RETURN);CHKERRQ(ierr); 790 791 /* Done after init due to a bug in MPICH-GM? */ 792 ierr = PetscErrorPrintfInitialize();CHKERRQ(ierr); 793 794 ierr = MPI_Comm_rank(MPI_COMM_WORLD,&PetscGlobalRank);CHKERRQ(ierr); 795 ierr = MPI_Comm_size(MPI_COMM_WORLD,&PetscGlobalSize);CHKERRQ(ierr); 796 797 MPIU_BOOL = MPI_INT; 798 MPIU_ENUM = MPI_INT; 799 800 /* 801 Initialized the global complex variable; this is because with 802 shared libraries the constructors for global variables 803 are not called; at least on IRIX. 804 */ 805 #if defined(PETSC_HAVE_COMPLEX) 806 { 807 #if defined(PETSC_CLANGUAGE_CXX) 808 PetscComplex ic(0.0,1.0); 809 PETSC_i = ic; 810 #elif defined(PETSC_CLANGUAGE_C) 811 PETSC_i = _Complex_I; 812 #endif 813 } 814 815 #if !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX) 816 ierr = MPI_Type_contiguous(2,MPI_DOUBLE,&MPIU_C_DOUBLE_COMPLEX);CHKERRQ(ierr); 817 ierr = MPI_Type_commit(&MPIU_C_DOUBLE_COMPLEX);CHKERRQ(ierr); 818 ierr = MPI_Type_contiguous(2,MPI_FLOAT,&MPIU_C_COMPLEX);CHKERRQ(ierr); 819 ierr = MPI_Type_commit(&MPIU_C_COMPLEX);CHKERRQ(ierr); 820 #endif 821 #endif /* PETSC_HAVE_COMPLEX */ 822 823 /* 824 Create the PETSc MPI reduction operator that sums of the first 825 half of the entries and maxes the second half. 826 */ 827 ierr = MPI_Op_create(PetscMaxSum_Local,1,&PetscMaxSum_Op);CHKERRQ(ierr); 828 829 #if defined(PETSC_USE_REAL___FLOAT128) 830 ierr = MPI_Type_contiguous(2,MPI_DOUBLE,&MPIU___FLOAT128);CHKERRQ(ierr); 831 ierr = MPI_Type_commit(&MPIU___FLOAT128);CHKERRQ(ierr); 832 #if defined(PETSC_HAVE_COMPLEX) 833 ierr = MPI_Type_contiguous(4,MPI_DOUBLE,&MPIU___COMPLEX128);CHKERRQ(ierr); 834 ierr = MPI_Type_commit(&MPIU___COMPLEX128);CHKERRQ(ierr); 835 #endif 836 ierr = MPI_Op_create(PetscMax_Local,1,&MPIU_MAX);CHKERRQ(ierr); 837 ierr = MPI_Op_create(PetscMin_Local,1,&MPIU_MIN);CHKERRQ(ierr); 838 #endif 839 840 #if (defined(PETSC_HAVE_COMPLEX) && !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX)) || defined(PETSC_USE_REAL___FLOAT128) 841 ierr = MPI_Op_create(PetscSum_Local,1,&MPIU_SUM);CHKERRQ(ierr); 842 #endif 843 844 ierr = MPI_Type_contiguous(2,MPIU_SCALAR,&MPIU_2SCALAR);CHKERRQ(ierr); 845 ierr = MPI_Type_commit(&MPIU_2SCALAR);CHKERRQ(ierr); 846 ierr = MPI_Op_create(PetscADMax_Local,1,&PetscADMax_Op);CHKERRQ(ierr); 847 ierr = MPI_Op_create(PetscADMin_Local,1,&PetscADMin_Op);CHKERRQ(ierr); 848 849 #if defined(PETSC_USE_64BIT_INDICES) || !defined(MPI_2INT) 850 ierr = MPI_Type_contiguous(2,MPIU_INT,&MPIU_2INT);CHKERRQ(ierr); 851 ierr = MPI_Type_commit(&MPIU_2INT);CHKERRQ(ierr); 852 #endif 853 854 855 /* 856 Attributes to be set on PETSc communicators 857 */ 858 ierr = MPI_Keyval_create(MPI_NULL_COPY_FN,Petsc_DelCounter,&Petsc_Counter_keyval,(void*)0);CHKERRQ(ierr); 859 ierr = MPI_Keyval_create(MPI_NULL_COPY_FN,Petsc_DelComm_Outer,&Petsc_InnerComm_keyval,(void*)0);CHKERRQ(ierr); 860 ierr = MPI_Keyval_create(MPI_NULL_COPY_FN,Petsc_DelComm_Inner,&Petsc_OuterComm_keyval,(void*)0);CHKERRQ(ierr); 861 862 /* 863 Build the options database 864 */ 865 ierr = PetscOptionsInsert(argc,args,file);CHKERRQ(ierr); 866 867 868 /* 869 Print main application help message 870 */ 871 ierr = PetscOptionsHasName(NULL,"-help",&flg);CHKERRQ(ierr); 872 if (help && flg) { 873 ierr = PetscPrintf(PETSC_COMM_WORLD,help);CHKERRQ(ierr); 874 } 875 ierr = PetscOptionsCheckInitial_Private();CHKERRQ(ierr); 876 877 ierr = PetscCitationsInitialize();CHKERRQ(ierr); 878 879 #if defined(PETSC_HAVE_SAWS) 880 ierr = PetscInitializeSAWs(help);CHKERRQ(ierr); 881 #endif 882 883 /* SHOULD PUT IN GUARDS: Make sure logging is initialized, even if we do not print it out */ 884 #if defined(PETSC_USE_LOG) 885 ierr = PetscLogBegin_Private();CHKERRQ(ierr); 886 #endif 887 888 /* 889 Load the dynamic libraries (on machines that support them), this registers all 890 the solvers etc. (On non-dynamic machines this initializes the PetscDraw and PetscViewer classes) 891 */ 892 ierr = PetscInitialize_DynamicLibraries();CHKERRQ(ierr); 893 894 ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr); 895 ierr = PetscInfo1(0,"PETSc successfully started: number of processors = %d\n",size);CHKERRQ(ierr); 896 ierr = PetscGetHostName(hostname,256);CHKERRQ(ierr); 897 ierr = PetscInfo1(0,"Running on machine: %s\n",hostname);CHKERRQ(ierr); 898 899 ierr = PetscOptionsCheckInitial_Components();CHKERRQ(ierr); 900 /* Check the options database for options related to the options database itself */ 901 ierr = PetscOptionsSetFromOptions();CHKERRQ(ierr); 902 903 #if defined(PETSC_USE_PETSC_MPI_EXTERNAL32) 904 /* 905 Tell MPI about our own data representation converter, this would/should be used if extern32 is not supported by the MPI 906 907 Currently not used because it is not supported by MPICH. 908 */ 909 #if !defined(PETSC_WORDS_BIGENDIAN) 910 ierr = MPI_Register_datarep((char*)"petsc",PetscDataRep_read_conv_fn,PetscDataRep_write_conv_fn,PetscDataRep_extent_fn,NULL);CHKERRQ(ierr); 911 #endif 912 #endif 913 914 ierr = PetscOptionsGetInt(NULL,"-hmpi_spawn_size",&nodesize,&flg);CHKERRQ(ierr); 915 if (flg) { 916 #if defined(PETSC_HAVE_MPI_COMM_SPAWN) 917 ierr = PetscHMPISpawn((PetscMPIInt) nodesize);CHKERRQ(ierr); /* worker nodes never return from here; they go directly to PetscEnd() */ 918 #else 919 SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"PETSc built without MPI 2 (MPI_Comm_spawn) support, use -hmpi_merge_size instead"); 920 #endif 921 } else { 922 ierr = PetscOptionsGetInt(NULL,"-hmpi_merge_size",&nodesize,&flg);CHKERRQ(ierr); 923 if (flg) { 924 ierr = PetscHMPIMerge((PetscMPIInt) nodesize,NULL,NULL);CHKERRQ(ierr); 925 if (PetscHMPIWorker) { /* if worker then never enter user code */ 926 PetscInitializeCalled = PETSC_TRUE; 927 PetscEnd(); 928 } 929 } 930 } 931 932 #if defined(PETSC_HAVE_CUDA) 933 flg = PETSC_TRUE; 934 ierr = PetscOptionsGetBool(NULL,"-cublas",&flg,NULL);CHKERRQ(ierr); 935 if (flg) { 936 PetscMPIInt p; 937 for (p = 0; p < PetscGlobalSize; ++p) { 938 if (p == PetscGlobalRank) cublasInit(); 939 ierr = MPI_Barrier(PETSC_COMM_WORLD);CHKERRQ(ierr); 940 } 941 } 942 #endif 943 944 ierr = PetscOptionsHasName(NULL,"-python",&flg);CHKERRQ(ierr); 945 if (flg) { 946 PetscInitializeCalled = PETSC_TRUE; 947 ierr = PetscPythonInitialize(NULL,NULL);CHKERRQ(ierr); 948 } 949 950 ierr = PetscThreadCommInitializePackage();CHKERRQ(ierr); 951 952 /* 953 Setup building of stack frames for all function calls 954 */ 955 PetscThreadLocalRegister((PetscThreadKey*)&petscstack); /* Creates pthread_key */ 956 #if defined(PETSC_USE_DEBUG) 957 ierr = PetscStackCreate();CHKERRQ(ierr); 958 #endif 959 960 #if defined(PETSC_SERIALIZE_FUNCTIONS) 961 ierr = PetscFPTCreate(10000);CHKERRQ(ierr); 962 #endif 963 964 965 /* 966 Once we are completedly initialized then we can set this variables 967 */ 968 PetscInitializeCalled = PETSC_TRUE; 969 PetscFunctionReturn(0); 970 } 971 972 #if defined(PETSC_USE_LOG) 973 extern PetscObject *PetscObjects; 974 extern PetscInt PetscObjectsCounts, PetscObjectsMaxCounts; 975 #endif 976 977 #undef __FUNCT__ 978 #define __FUNCT__ "PetscFinalize" 979 /*@C 980 PetscFinalize - Checks for options to be called at the conclusion 981 of the program. MPI_Finalize() is called only if the user had not 982 called MPI_Init() before calling PetscInitialize(). 983 984 Collective on PETSC_COMM_WORLD 985 986 Options Database Keys: 987 + -options_table - Calls PetscOptionsView() 988 . -options_left - Prints unused options that remain in the database 989 . -objects_dump [all] - Prints list of objects allocated by the user that have not been freed, the option all cause all outstanding objects to be listed 990 . -mpidump - Calls PetscMPIDump() 991 . -malloc_dump - Calls PetscMallocDump() 992 . -malloc_info - Prints total memory usage 993 - -malloc_log - Prints summary of memory usage 994 995 Level: beginner 996 997 Note: 998 See PetscInitialize() for more general runtime options. 999 1000 .seealso: PetscInitialize(), PetscOptionsView(), PetscMallocDump(), PetscMPIDump(), PetscEnd() 1001 @*/ 1002 PetscErrorCode PetscFinalize(void) 1003 { 1004 PetscErrorCode ierr; 1005 PetscMPIInt rank; 1006 PetscInt nopt; 1007 PetscBool flg1 = PETSC_FALSE,flg2 = PETSC_FALSE,flg3 = PETSC_FALSE; 1008 PetscBool flg; 1009 #if defined(PETSC_USE_LOG) 1010 char mname[PETSC_MAX_PATH_LEN]; 1011 #endif 1012 1013 PetscFunctionBegin; 1014 if (!PetscInitializeCalled) { 1015 printf("PetscInitialize() must be called before PetscFinalize()\n"); 1016 PetscFunctionReturn(PETSC_ERR_ARG_WRONGSTATE); 1017 } 1018 ierr = PetscInfo(NULL,"PetscFinalize() called\n");CHKERRQ(ierr); 1019 1020 ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr); 1021 1022 ierr = PetscOptionsHasName(NULL,"-citations",&flg);CHKERRQ(ierr); 1023 if (flg) { 1024 char *cits, filename[PETSC_MAX_PATH_LEN]; 1025 FILE *fd = PETSC_STDOUT; 1026 1027 ierr = PetscOptionsGetString(NULL,"-citations",filename,PETSC_MAX_PATH_LEN,NULL);CHKERRQ(ierr); 1028 if (filename[0]) { 1029 ierr = PetscFOpen(PETSC_COMM_WORLD,filename,"w",&fd);CHKERRQ(ierr); 1030 } 1031 ierr = PetscSegBufferGet(PetscCitationsList,1,&cits);CHKERRQ(ierr); 1032 cits[0] = 0; 1033 ierr = PetscSegBufferExtractAlloc(PetscCitationsList,&cits);CHKERRQ(ierr); 1034 ierr = PetscFPrintf(PETSC_COMM_WORLD,fd,"If you publish results based on this computation please cite the following:\n");CHKERRQ(ierr); 1035 ierr = PetscFPrintf(PETSC_COMM_WORLD,fd,"===========================================================================\n");CHKERRQ(ierr); 1036 ierr = PetscFPrintf(PETSC_COMM_WORLD,fd,"%s",cits);CHKERRQ(ierr); 1037 ierr = PetscFPrintf(PETSC_COMM_WORLD,fd,"===========================================================================\n");CHKERRQ(ierr); 1038 ierr = PetscFClose(PETSC_COMM_WORLD,fd);CHKERRQ(ierr); 1039 ierr = PetscFree(cits);CHKERRQ(ierr); 1040 } 1041 ierr = PetscSegBufferDestroy(&PetscCitationsList);CHKERRQ(ierr); 1042 1043 #if defined(PETSC_SERIALIZE_FUNCTIONS) 1044 ierr = PetscFPTDestroy();CHKERRQ(ierr); 1045 #endif 1046 1047 1048 #if defined(PETSC_HAVE_SAWS) 1049 flg = PETSC_FALSE; 1050 ierr = PetscOptionsGetBool(NULL,"-saw_options",&flg,NULL);CHKERRQ(ierr); 1051 if (flg) { 1052 ierr = PetscOptionsSAWsDestroy();CHKERRQ(ierr); 1053 } 1054 #endif 1055 1056 #if defined(PETSC_HAVE_X) 1057 flg1 = PETSC_FALSE; 1058 ierr = PetscOptionsGetBool(NULL,"-x_virtual",&flg1,NULL);CHKERRQ(ierr); 1059 if (flg1) { 1060 /* this is a crude hack, but better than nothing */ 1061 ierr = PetscPOpen(PETSC_COMM_WORLD,NULL,"pkill -9 Xvfb","r",NULL);CHKERRQ(ierr); 1062 } 1063 #endif 1064 1065 ierr = PetscHMPIFinalize();CHKERRQ(ierr); 1066 1067 ierr = PetscOptionsGetBool(NULL,"-malloc_info",&flg2,NULL);CHKERRQ(ierr); 1068 if (!flg2) { 1069 flg2 = PETSC_FALSE; 1070 ierr = PetscOptionsGetBool(NULL,"-memory_info",&flg2,NULL);CHKERRQ(ierr); 1071 } 1072 if (flg2) { 1073 ierr = PetscMemoryShowUsage(PETSC_VIEWER_STDOUT_WORLD,"Summary of Memory Usage in PETSc\n");CHKERRQ(ierr); 1074 } 1075 1076 #if defined(PETSC_USE_LOG) 1077 flg1 = PETSC_FALSE; 1078 ierr = PetscOptionsGetBool(NULL,"-get_total_flops",&flg1,NULL);CHKERRQ(ierr); 1079 if (flg1) { 1080 PetscLogDouble flops = 0; 1081 ierr = MPI_Reduce(&petsc_TotalFlops,&flops,1,MPI_DOUBLE,MPI_SUM,0,PETSC_COMM_WORLD);CHKERRQ(ierr); 1082 ierr = PetscPrintf(PETSC_COMM_WORLD,"Total flops over all processors %g\n",flops);CHKERRQ(ierr); 1083 } 1084 #endif 1085 1086 1087 #if defined(PETSC_USE_LOG) 1088 #if defined(PETSC_HAVE_MPE) 1089 mname[0] = 0; 1090 1091 ierr = PetscOptionsGetString(NULL,"-log_mpe",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1092 if (flg1) { 1093 if (mname[0]) {ierr = PetscLogMPEDump(mname);CHKERRQ(ierr);} 1094 else {ierr = PetscLogMPEDump(0);CHKERRQ(ierr);} 1095 } 1096 #endif 1097 mname[0] = 0; 1098 1099 ierr = PetscOptionsGetString(NULL,"-log_summary",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1100 if (flg1) { 1101 PetscViewer viewer; 1102 if (mname[0]) { 1103 ierr = PetscViewerASCIIOpen(PETSC_COMM_WORLD,mname,&viewer);CHKERRQ(ierr); 1104 ierr = PetscLogView(viewer);CHKERRQ(ierr); 1105 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 1106 } else { 1107 viewer = PETSC_VIEWER_STDOUT_WORLD; 1108 ierr = PetscLogView(viewer);CHKERRQ(ierr); 1109 } 1110 } 1111 1112 mname[0] = 0; 1113 1114 ierr = PetscOptionsGetString(NULL,"-log_summary_python",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1115 if (flg1) { 1116 PetscViewer viewer; 1117 if (mname[0]) { 1118 ierr = PetscViewerASCIIOpen(PETSC_COMM_WORLD,mname,&viewer);CHKERRQ(ierr); 1119 ierr = PetscLogViewPython(viewer);CHKERRQ(ierr); 1120 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 1121 } else { 1122 viewer = PETSC_VIEWER_STDOUT_WORLD; 1123 ierr = PetscLogViewPython(viewer);CHKERRQ(ierr); 1124 } 1125 } 1126 1127 ierr = PetscOptionsGetString(NULL,"-log_detailed",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1128 if (flg1) { 1129 if (mname[0]) {ierr = PetscLogPrintDetailed(PETSC_COMM_WORLD,mname);CHKERRQ(ierr);} 1130 else {ierr = PetscLogPrintDetailed(PETSC_COMM_WORLD,0);CHKERRQ(ierr);} 1131 } 1132 1133 mname[0] = 0; 1134 1135 ierr = PetscOptionsGetString(NULL,"-log_all",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1136 ierr = PetscOptionsGetString(NULL,"-log",mname,PETSC_MAX_PATH_LEN,&flg2);CHKERRQ(ierr); 1137 if (flg1 || flg2) { 1138 if (mname[0]) PetscLogDump(mname); 1139 else PetscLogDump(0); 1140 } 1141 #endif 1142 1143 /* 1144 Free all objects registered with PetscObjectRegisterDestroy() such as PETSC_VIEWER_XXX_(). 1145 */ 1146 ierr = PetscObjectRegisterDestroyAll();CHKERRQ(ierr); 1147 1148 ierr = PetscStackDestroy();CHKERRQ(ierr); 1149 PetscThreadLocalDestroy((PetscThreadKey)petscstack); /* Deletes pthread_key */ 1150 1151 flg1 = PETSC_FALSE; 1152 ierr = PetscOptionsGetBool(NULL,"-no_signal_handler",&flg1,NULL);CHKERRQ(ierr); 1153 if (!flg1) { ierr = PetscPopSignalHandler();CHKERRQ(ierr);} 1154 flg1 = PETSC_FALSE; 1155 ierr = PetscOptionsGetBool(NULL,"-mpidump",&flg1,NULL);CHKERRQ(ierr); 1156 if (flg1) { 1157 ierr = PetscMPIDump(stdout);CHKERRQ(ierr); 1158 } 1159 flg1 = PETSC_FALSE; 1160 flg2 = PETSC_FALSE; 1161 /* preemptive call to avoid listing this option in options table as unused */ 1162 ierr = PetscOptionsHasName(NULL,"-malloc_dump",&flg1);CHKERRQ(ierr); 1163 ierr = PetscOptionsHasName(NULL,"-objects_dump",&flg1);CHKERRQ(ierr); 1164 ierr = PetscOptionsGetBool(NULL,"-options_table",&flg2,NULL);CHKERRQ(ierr); 1165 1166 if (flg2) { 1167 PetscViewer viewer; 1168 ierr = PetscViewerASCIIGetStdout(PETSC_COMM_WORLD,&viewer);CHKERRQ(ierr); 1169 ierr = PetscOptionsView(viewer);CHKERRQ(ierr); 1170 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 1171 } 1172 1173 /* to prevent PETSc -options_left from warning */ 1174 ierr = PetscOptionsHasName(NULL,"-nox",&flg1);CHKERRQ(ierr); 1175 ierr = PetscOptionsHasName(NULL,"-nox_warning",&flg1);CHKERRQ(ierr); 1176 1177 if (!PetscHMPIWorker) { /* worker processes skip this because they do not usually process options */ 1178 flg3 = PETSC_FALSE; /* default value is required */ 1179 ierr = PetscOptionsGetBool(NULL,"-options_left",&flg3,&flg1);CHKERRQ(ierr); 1180 ierr = PetscOptionsAllUsed(&nopt);CHKERRQ(ierr); 1181 if (flg3) { 1182 if (!flg2) { /* have not yet printed the options */ 1183 PetscViewer viewer; 1184 ierr = PetscViewerASCIIGetStdout(PETSC_COMM_WORLD,&viewer);CHKERRQ(ierr); 1185 ierr = PetscOptionsView(viewer);CHKERRQ(ierr); 1186 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 1187 } 1188 if (!nopt) { 1189 ierr = PetscPrintf(PETSC_COMM_WORLD,"There are no unused options.\n");CHKERRQ(ierr); 1190 } else if (nopt == 1) { 1191 ierr = PetscPrintf(PETSC_COMM_WORLD,"There is one unused database option. It is:\n");CHKERRQ(ierr); 1192 } else { 1193 ierr = PetscPrintf(PETSC_COMM_WORLD,"There are %D unused database options. They are:\n",nopt);CHKERRQ(ierr); 1194 } 1195 } 1196 #if defined(PETSC_USE_DEBUG) 1197 if (nopt && !flg3 && !flg1) { 1198 ierr = PetscPrintf(PETSC_COMM_WORLD,"WARNING! There are options you set that were not used!\n");CHKERRQ(ierr); 1199 ierr = PetscPrintf(PETSC_COMM_WORLD,"WARNING! could be spelling mistake, etc!\n");CHKERRQ(ierr); 1200 ierr = PetscOptionsLeft();CHKERRQ(ierr); 1201 } else if (nopt && flg3) { 1202 #else 1203 if (nopt && flg3) { 1204 #endif 1205 ierr = PetscOptionsLeft();CHKERRQ(ierr); 1206 } 1207 } 1208 1209 #if defined(PETSC_HAVE_SAWS) 1210 if (!PetscGlobalRank) { 1211 ierr = PetscStackSAWsViewOff();CHKERRQ(ierr); 1212 PetscStackCallSAWs(SAWs_Finalize,()); 1213 } 1214 #endif 1215 1216 { 1217 PetscThreadComm tcomm_world; 1218 ierr = PetscGetThreadCommWorld(&tcomm_world);CHKERRQ(ierr); 1219 /* Free global thread communicator */ 1220 ierr = PetscThreadCommDestroy(&tcomm_world);CHKERRQ(ierr); 1221 } 1222 1223 #if defined(PETSC_USE_LOG) 1224 /* 1225 List all objects the user may have forgot to free 1226 */ 1227 ierr = PetscOptionsHasName(NULL,"-objects_dump",&flg1);CHKERRQ(ierr); 1228 if (flg1) { 1229 MPI_Comm local_comm; 1230 char string[64]; 1231 1232 ierr = PetscOptionsGetString(NULL,"-objects_dump",string,64,NULL);CHKERRQ(ierr); 1233 ierr = MPI_Comm_dup(MPI_COMM_WORLD,&local_comm);CHKERRQ(ierr); 1234 ierr = PetscSequentialPhaseBegin_Private(local_comm,1);CHKERRQ(ierr); 1235 ierr = PetscObjectsDump(stdout,(string[0] == 'a') ? PETSC_TRUE : PETSC_FALSE);CHKERRQ(ierr); 1236 ierr = PetscSequentialPhaseEnd_Private(local_comm,1);CHKERRQ(ierr); 1237 ierr = MPI_Comm_free(&local_comm);CHKERRQ(ierr); 1238 } 1239 #endif 1240 1241 #if defined(PETSC_USE_LOG) 1242 PetscObjectsCounts = 0; 1243 PetscObjectsMaxCounts = 0; 1244 ierr = PetscFree(PetscObjects);CHKERRQ(ierr); 1245 #endif 1246 1247 #if defined(PETSC_USE_LOG) 1248 ierr = PetscLogDestroy();CHKERRQ(ierr); 1249 #endif 1250 1251 /* 1252 Destroy any packages that registered a finalize 1253 */ 1254 ierr = PetscRegisterFinalizeAll();CHKERRQ(ierr); 1255 1256 /* 1257 Destroy all the function registration lists created 1258 */ 1259 ierr = PetscFinalize_DynamicLibraries();CHKERRQ(ierr); 1260 1261 /* 1262 Print PetscFunctionLists that have not been properly freed 1263 1264 ierr = PetscFunctionListPrintAll();CHKERRQ(ierr); 1265 */ 1266 1267 if (petsc_history) { 1268 ierr = PetscCloseHistoryFile(&petsc_history);CHKERRQ(ierr); 1269 petsc_history = 0; 1270 } 1271 1272 ierr = PetscInfoAllow(PETSC_FALSE,NULL);CHKERRQ(ierr); 1273 1274 { 1275 char fname[PETSC_MAX_PATH_LEN]; 1276 FILE *fd; 1277 int err; 1278 1279 fname[0] = 0; 1280 1281 ierr = PetscOptionsGetString(NULL,"-malloc_dump",fname,250,&flg1);CHKERRQ(ierr); 1282 flg2 = PETSC_FALSE; 1283 ierr = PetscOptionsGetBool(NULL,"-malloc_test",&flg2,NULL);CHKERRQ(ierr); 1284 #if defined(PETSC_USE_DEBUG) 1285 if (PETSC_RUNNING_ON_VALGRIND) flg2 = PETSC_FALSE; 1286 #else 1287 flg2 = PETSC_FALSE; /* Skip reporting for optimized builds regardless of -malloc_test */ 1288 #endif 1289 if (flg1 && fname[0]) { 1290 char sname[PETSC_MAX_PATH_LEN]; 1291 1292 sprintf(sname,"%s_%d",fname,rank); 1293 fd = fopen(sname,"w"); if (!fd) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Cannot open log file: %s",sname); 1294 ierr = PetscMallocDump(fd);CHKERRQ(ierr); 1295 err = fclose(fd); 1296 if (err) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SYS,"fclose() failed on file"); 1297 } else if (flg1 || flg2) { 1298 MPI_Comm local_comm; 1299 1300 ierr = MPI_Comm_dup(MPI_COMM_WORLD,&local_comm);CHKERRQ(ierr); 1301 ierr = PetscSequentialPhaseBegin_Private(local_comm,1);CHKERRQ(ierr); 1302 ierr = PetscMallocDump(stdout);CHKERRQ(ierr); 1303 ierr = PetscSequentialPhaseEnd_Private(local_comm,1);CHKERRQ(ierr); 1304 ierr = MPI_Comm_free(&local_comm);CHKERRQ(ierr); 1305 } 1306 } 1307 1308 { 1309 char fname[PETSC_MAX_PATH_LEN]; 1310 FILE *fd = NULL; 1311 1312 fname[0] = 0; 1313 1314 ierr = PetscOptionsGetString(NULL,"-malloc_log",fname,250,&flg1);CHKERRQ(ierr); 1315 ierr = PetscOptionsHasName(NULL,"-malloc_log_threshold",&flg2);CHKERRQ(ierr); 1316 if (flg1 && fname[0]) { 1317 int err; 1318 1319 if (!rank) { 1320 fd = fopen(fname,"w"); 1321 if (!fd) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Cannot open log file: %s",fname); 1322 } 1323 ierr = PetscMallocDumpLog(fd);CHKERRQ(ierr); 1324 if (fd) { 1325 err = fclose(fd); 1326 if (err) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SYS,"fclose() failed on file"); 1327 } 1328 } else if (flg1 || flg2) { 1329 ierr = PetscMallocDumpLog(stdout);CHKERRQ(ierr); 1330 } 1331 } 1332 1333 #if defined(PETSC_HAVE_CUDA) 1334 flg = PETSC_TRUE; 1335 ierr = PetscOptionsGetBool(NULL,"-cublas",&flg,NULL);CHKERRQ(ierr); 1336 if (flg) { 1337 PetscInt p; 1338 for (p = 0; p < PetscGlobalSize; ++p) { 1339 if (p == PetscGlobalRank) cublasShutdown(); 1340 ierr = MPI_Barrier(PETSC_COMM_WORLD);CHKERRQ(ierr); 1341 } 1342 } 1343 #endif 1344 1345 /* Can be destroyed only after all the options are used */ 1346 ierr = PetscOptionsDestroy();CHKERRQ(ierr); 1347 1348 PetscGlobalArgc = 0; 1349 PetscGlobalArgs = 0; 1350 1351 #if defined(PETSC_USE_REAL___FLOAT128) 1352 ierr = MPI_Type_free(&MPIU___FLOAT128);CHKERRQ(ierr); 1353 #if defined(PETSC_HAVE_COMPLEX) 1354 ierr = MPI_Type_free(&MPIU___COMPLEX128);CHKERRQ(ierr); 1355 #endif 1356 ierr = MPI_Op_free(&MPIU_MAX);CHKERRQ(ierr); 1357 ierr = MPI_Op_free(&MPIU_MIN);CHKERRQ(ierr); 1358 #endif 1359 1360 #if defined(PETSC_HAVE_COMPLEX) 1361 #if !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX) 1362 ierr = MPI_Type_free(&MPIU_C_DOUBLE_COMPLEX);CHKERRQ(ierr); 1363 ierr = MPI_Type_free(&MPIU_C_COMPLEX);CHKERRQ(ierr); 1364 #endif 1365 #endif 1366 1367 #if (defined(PETSC_HAVE_COMPLEX) && !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX)) || defined(PETSC_USE_REAL___FLOAT128) 1368 ierr = MPI_Op_free(&MPIU_SUM);CHKERRQ(ierr); 1369 #endif 1370 1371 ierr = MPI_Type_free(&MPIU_2SCALAR);CHKERRQ(ierr); 1372 #if defined(PETSC_USE_64BIT_INDICES) || !defined(MPI_2INT) 1373 ierr = MPI_Type_free(&MPIU_2INT);CHKERRQ(ierr); 1374 #endif 1375 ierr = MPI_Op_free(&PetscMaxSum_Op);CHKERRQ(ierr); 1376 ierr = MPI_Op_free(&PetscADMax_Op);CHKERRQ(ierr); 1377 ierr = MPI_Op_free(&PetscADMin_Op);CHKERRQ(ierr); 1378 1379 /* 1380 Destroy any known inner MPI_Comm's and attributes pointing to them 1381 Note this will not destroy any new communicators the user has created. 1382 1383 If all PETSc objects were not destroyed those left over objects will have hanging references to 1384 the MPI_Comms that were freed; but that is ok because those PETSc objects will never be used again 1385 */ 1386 { 1387 PetscCommCounter *counter; 1388 PetscMPIInt flg; 1389 MPI_Comm icomm; 1390 union {MPI_Comm comm; void *ptr;} ucomm; 1391 ierr = MPI_Attr_get(PETSC_COMM_SELF,Petsc_InnerComm_keyval,&ucomm,&flg);CHKERRQ(ierr); 1392 if (flg) { 1393 icomm = ucomm.comm; 1394 ierr = MPI_Attr_get(icomm,Petsc_Counter_keyval,&counter,&flg);CHKERRQ(ierr); 1395 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_CORRUPT,"Inner MPI_Comm does not have expected tag/name counter, problem with corrupted memory"); 1396 1397 ierr = MPI_Attr_delete(PETSC_COMM_SELF,Petsc_InnerComm_keyval);CHKERRQ(ierr); 1398 ierr = MPI_Attr_delete(icomm,Petsc_Counter_keyval);CHKERRQ(ierr); 1399 ierr = MPI_Comm_free(&icomm);CHKERRQ(ierr); 1400 } 1401 ierr = MPI_Attr_get(PETSC_COMM_WORLD,Petsc_InnerComm_keyval,&ucomm,&flg);CHKERRQ(ierr); 1402 if (flg) { 1403 icomm = ucomm.comm; 1404 ierr = MPI_Attr_get(icomm,Petsc_Counter_keyval,&counter,&flg);CHKERRQ(ierr); 1405 if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_ARG_CORRUPT,"Inner MPI_Comm does not have expected tag/name counter, problem with corrupted memory"); 1406 1407 ierr = MPI_Attr_delete(PETSC_COMM_WORLD,Petsc_InnerComm_keyval);CHKERRQ(ierr); 1408 ierr = MPI_Attr_delete(icomm,Petsc_Counter_keyval);CHKERRQ(ierr); 1409 ierr = MPI_Comm_free(&icomm);CHKERRQ(ierr); 1410 } 1411 } 1412 1413 ierr = MPI_Keyval_free(&Petsc_Counter_keyval);CHKERRQ(ierr); 1414 ierr = MPI_Keyval_free(&Petsc_InnerComm_keyval);CHKERRQ(ierr); 1415 ierr = MPI_Keyval_free(&Petsc_OuterComm_keyval);CHKERRQ(ierr); 1416 1417 if (PetscBeganMPI) { 1418 #if defined(PETSC_HAVE_MPI_FINALIZED) 1419 PetscMPIInt flag; 1420 ierr = MPI_Finalized(&flag);CHKERRQ(ierr); 1421 if (flag) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"MPI_Finalize() has already been called, even though MPI_Init() was called by PetscInitialize()"); 1422 #endif 1423 ierr = MPI_Finalize();CHKERRQ(ierr); 1424 } 1425 /* 1426 1427 Note: In certain cases PETSC_COMM_WORLD is never MPI_Comm_free()ed because 1428 the communicator has some outstanding requests on it. Specifically if the 1429 flag PETSC_HAVE_BROKEN_REQUEST_FREE is set (for IBM MPI implementation). See 1430 src/vec/utils/vpscat.c. Due to this the memory allocated in PetscCommDuplicate() 1431 is never freed as it should be. Thus one may obtain messages of the form 1432 [ 1] 8 bytes PetscCommDuplicate() line 645 in src/sys/mpiu.c indicating the 1433 memory was not freed. 1434 1435 */ 1436 ierr = PetscMallocClear();CHKERRQ(ierr); 1437 1438 PetscInitializeCalled = PETSC_FALSE; 1439 PetscFinalizeCalled = PETSC_TRUE; 1440 PetscFunctionReturn(ierr); 1441 } 1442 1443 #if defined(PETSC_MISSING_LAPACK_lsame_) 1444 PETSC_EXTERN int lsame_(char *a,char *b) 1445 { 1446 if (*a == *b) return 1; 1447 if (*a + 32 == *b) return 1; 1448 if (*a - 32 == *b) return 1; 1449 return 0; 1450 } 1451 #endif 1452 1453 #if defined(PETSC_MISSING_LAPACK_lsame) 1454 PETSC_EXTERN int lsame(char *a,char *b) 1455 { 1456 if (*a == *b) return 1; 1457 if (*a + 32 == *b) return 1; 1458 if (*a - 32 == *b) return 1; 1459 return 0; 1460 } 1461 #endif 1462