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 - -server <port> - start PETSc webserver (default port is 8080) 691 692 Options Database Keys for Profiling: 693 See the <a href="../../docs/manual.pdf#nameddest=ch_profiling">profiling chapter of the users manual</a> for details. 694 + -info <optional filename> - Prints verbose information to the screen 695 . -info_exclude <null,vec,mat,pc,ksp,snes,ts> - Excludes some of the verbose messages 696 . -log_sync - Log the synchronization in scatters, inner products and norms 697 . -log_trace [filename] - Print traces of all PETSc calls to the screen (useful to determine where a program 698 hangs without running in the debugger). See PetscLogTraceBegin(). 699 . -log_summary [filename] - Prints summary of flop and timing information to screen. If the filename is specified the 700 summary is written to the file. See PetscLogView(). 701 . -log_summary_python [filename] - Prints data on of flop and timing usage to a file or screen. See PetscLogPrintSViewPython(). 702 . -log_all [filename] - Logs extensive profiling information See PetscLogDump(). 703 . -log [filename] - Logs basic profiline information See PetscLogDump(). 704 - -log_mpe [filename] - Creates a logfile viewable by the utility Jumpshot (in MPICH distribution) 705 706 Only one of -log_trace, -log_summary, -log_all, -log, or -log_mpe may be used at a time 707 708 Environmental Variables: 709 + PETSC_TMP - alternative tmp directory 710 . PETSC_SHARED_TMP - tmp is shared by all processes 711 . PETSC_NOT_SHARED_TMP - each process has its own private tmp 712 . PETSC_VIEWER_SOCKET_PORT - socket number to use for socket viewer 713 - PETSC_VIEWER_SOCKET_MACHINE - machine to use for socket viewer to connect to 714 715 716 Level: beginner 717 718 Notes: 719 If for some reason you must call MPI_Init() separately, call 720 it before PetscInitialize(). 721 722 Fortran Version: 723 In Fortran this routine has the format 724 $ call PetscInitialize(file,ierr) 725 726 + ierr - error return code 727 - file - [optional] PETSc database file, also checks ~username/.petscrc and .petscrc use NULL_CHARACTER to not check for 728 code specific file. Use -skip_petscrc in the code specific file to skip the .petscrc files 729 730 Important Fortran Note: 731 In Fortran, you MUST use NULL_CHARACTER to indicate a 732 null character string; you CANNOT just use NULL as 733 in the C version. See the <a href="../../docs/manual.pdf">users manual</a> for details. 734 735 If your main program is C but you call Fortran code that also uses PETSc you need to call PetscInitializeFortran() soon after 736 calling PetscInitialize(). 737 738 Concepts: initializing PETSc 739 740 .seealso: PetscFinalize(), PetscInitializeFortran(), PetscGetArgs(), PetscInitializeNoArguments() 741 742 @*/ 743 PetscErrorCode PetscInitialize(int *argc,char ***args,const char file[],const char help[]) 744 { 745 PetscErrorCode ierr; 746 PetscMPIInt flag, size; 747 PetscInt nodesize; 748 PetscBool flg; 749 char hostname[256]; 750 751 PetscFunctionBegin; 752 if (PetscInitializeCalled) PetscFunctionReturn(0); 753 754 /* these must be initialized in a routine, not as a constant declaration*/ 755 PETSC_STDOUT = stdout; 756 PETSC_STDERR = stderr; 757 758 ierr = PetscOptionsCreate();CHKERRQ(ierr); 759 760 /* 761 We initialize the program name here (before MPI_Init()) because MPICH has a bug in 762 it that it sets args[0] on all processors to be args[0] on the first processor. 763 */ 764 if (argc && *argc) { 765 ierr = PetscSetProgramName(**args);CHKERRQ(ierr); 766 } else { 767 ierr = PetscSetProgramName("Unknown Name");CHKERRQ(ierr); 768 } 769 770 ierr = MPI_Initialized(&flag);CHKERRQ(ierr); 771 if (!flag) { 772 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"); 773 #if defined(PETSC_HAVE_MPI_INIT_THREAD) 774 { 775 PetscMPIInt provided; 776 ierr = MPI_Init_thread(argc,args,MPI_THREAD_FUNNELED,&provided);CHKERRQ(ierr); 777 } 778 #else 779 ierr = MPI_Init(argc,args);CHKERRQ(ierr); 780 #endif 781 PetscBeganMPI = PETSC_TRUE; 782 } 783 if (argc && args) { 784 PetscGlobalArgc = *argc; 785 PetscGlobalArgs = *args; 786 } 787 PetscFinalizeCalled = PETSC_FALSE; 788 789 if (PETSC_COMM_WORLD == MPI_COMM_NULL) PETSC_COMM_WORLD = MPI_COMM_WORLD; 790 ierr = MPI_Comm_set_errhandler(PETSC_COMM_WORLD,MPI_ERRORS_RETURN);CHKERRQ(ierr); 791 792 /* Done after init due to a bug in MPICH-GM? */ 793 ierr = PetscErrorPrintfInitialize();CHKERRQ(ierr); 794 795 ierr = MPI_Comm_rank(MPI_COMM_WORLD,&PetscGlobalRank);CHKERRQ(ierr); 796 ierr = MPI_Comm_size(MPI_COMM_WORLD,&PetscGlobalSize);CHKERRQ(ierr); 797 798 MPIU_BOOL = MPI_INT; 799 MPIU_ENUM = MPI_INT; 800 801 /* 802 Initialized the global complex variable; this is because with 803 shared libraries the constructors for global variables 804 are not called; at least on IRIX. 805 */ 806 #if defined(PETSC_HAVE_COMPLEX) 807 { 808 #if defined(PETSC_CLANGUAGE_CXX) 809 PetscComplex ic(0.0,1.0); 810 PETSC_i = ic; 811 #elif defined(PETSC_CLANGUAGE_C) 812 PETSC_i = _Complex_I; 813 #endif 814 } 815 816 #if !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX) 817 ierr = MPI_Type_contiguous(2,MPI_DOUBLE,&MPIU_C_DOUBLE_COMPLEX);CHKERRQ(ierr); 818 ierr = MPI_Type_commit(&MPIU_C_DOUBLE_COMPLEX);CHKERRQ(ierr); 819 ierr = MPI_Type_contiguous(2,MPI_FLOAT,&MPIU_C_COMPLEX);CHKERRQ(ierr); 820 ierr = MPI_Type_commit(&MPIU_C_COMPLEX);CHKERRQ(ierr); 821 #endif 822 #endif /* PETSC_HAVE_COMPLEX */ 823 824 /* 825 Create the PETSc MPI reduction operator that sums of the first 826 half of the entries and maxes the second half. 827 */ 828 ierr = MPI_Op_create(PetscMaxSum_Local,1,&PetscMaxSum_Op);CHKERRQ(ierr); 829 830 #if defined(PETSC_USE_REAL___FLOAT128) 831 ierr = MPI_Type_contiguous(2,MPI_DOUBLE,&MPIU___FLOAT128);CHKERRQ(ierr); 832 ierr = MPI_Type_commit(&MPIU___FLOAT128);CHKERRQ(ierr); 833 #if defined(PETSC_HAVE_COMPLEX) 834 ierr = MPI_Type_contiguous(4,MPI_DOUBLE,&MPIU___COMPLEX128);CHKERRQ(ierr); 835 ierr = MPI_Type_commit(&MPIU___COMPLEX128);CHKERRQ(ierr); 836 #endif 837 ierr = MPI_Op_create(PetscMax_Local,1,&MPIU_MAX);CHKERRQ(ierr); 838 ierr = MPI_Op_create(PetscMin_Local,1,&MPIU_MIN);CHKERRQ(ierr); 839 #endif 840 841 #if (defined(PETSC_HAVE_COMPLEX) && !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX)) || defined(PETSC_USE_REAL___FLOAT128) 842 ierr = MPI_Op_create(PetscSum_Local,1,&MPIU_SUM);CHKERRQ(ierr); 843 #endif 844 845 ierr = MPI_Type_contiguous(2,MPIU_SCALAR,&MPIU_2SCALAR);CHKERRQ(ierr); 846 ierr = MPI_Type_commit(&MPIU_2SCALAR);CHKERRQ(ierr); 847 ierr = MPI_Op_create(PetscADMax_Local,1,&PetscADMax_Op);CHKERRQ(ierr); 848 ierr = MPI_Op_create(PetscADMin_Local,1,&PetscADMin_Op);CHKERRQ(ierr); 849 850 #if defined(PETSC_USE_64BIT_INDICES) || !defined(MPI_2INT) 851 ierr = MPI_Type_contiguous(2,MPIU_INT,&MPIU_2INT);CHKERRQ(ierr); 852 ierr = MPI_Type_commit(&MPIU_2INT);CHKERRQ(ierr); 853 #endif 854 855 856 /* 857 Attributes to be set on PETSc communicators 858 */ 859 ierr = MPI_Keyval_create(MPI_NULL_COPY_FN,Petsc_DelCounter,&Petsc_Counter_keyval,(void*)0);CHKERRQ(ierr); 860 ierr = MPI_Keyval_create(MPI_NULL_COPY_FN,Petsc_DelComm_Outer,&Petsc_InnerComm_keyval,(void*)0);CHKERRQ(ierr); 861 ierr = MPI_Keyval_create(MPI_NULL_COPY_FN,Petsc_DelComm_Inner,&Petsc_OuterComm_keyval,(void*)0);CHKERRQ(ierr); 862 863 /* 864 Build the options database 865 */ 866 ierr = PetscOptionsInsert(argc,args,file);CHKERRQ(ierr); 867 868 869 /* 870 Print main application help message 871 */ 872 ierr = PetscOptionsHasName(NULL,"-help",&flg);CHKERRQ(ierr); 873 if (help && flg) { 874 ierr = PetscPrintf(PETSC_COMM_WORLD,help);CHKERRQ(ierr); 875 } 876 ierr = PetscOptionsCheckInitial_Private();CHKERRQ(ierr); 877 878 ierr = PetscCitationsInitialize();CHKERRQ(ierr); 879 880 #if defined(PETSC_HAVE_SAWS) 881 ierr = PetscInitializeSAWs(help);CHKERRQ(ierr); 882 #endif 883 884 /* SHOULD PUT IN GUARDS: Make sure logging is initialized, even if we do not print it out */ 885 #if defined(PETSC_USE_LOG) 886 ierr = PetscLogBegin_Private();CHKERRQ(ierr); 887 #endif 888 889 /* 890 Load the dynamic libraries (on machines that support them), this registers all 891 the solvers etc. (On non-dynamic machines this initializes the PetscDraw and PetscViewer classes) 892 */ 893 ierr = PetscInitialize_DynamicLibraries();CHKERRQ(ierr); 894 895 ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr); 896 ierr = PetscInfo1(0,"PETSc successfully started: number of processors = %d\n",size);CHKERRQ(ierr); 897 ierr = PetscGetHostName(hostname,256);CHKERRQ(ierr); 898 ierr = PetscInfo1(0,"Running on machine: %s\n",hostname);CHKERRQ(ierr); 899 900 ierr = PetscOptionsCheckInitial_Components();CHKERRQ(ierr); 901 /* Check the options database for options related to the options database itself */ 902 ierr = PetscOptionsSetFromOptions();CHKERRQ(ierr); 903 904 #if defined(PETSC_USE_PETSC_MPI_EXTERNAL32) 905 /* 906 Tell MPI about our own data representation converter, this would/should be used if extern32 is not supported by the MPI 907 908 Currently not used because it is not supported by MPICH. 909 */ 910 #if !defined(PETSC_WORDS_BIGENDIAN) 911 ierr = MPI_Register_datarep((char*)"petsc",PetscDataRep_read_conv_fn,PetscDataRep_write_conv_fn,PetscDataRep_extent_fn,NULL);CHKERRQ(ierr); 912 #endif 913 #endif 914 915 ierr = PetscOptionsGetInt(NULL,"-hmpi_spawn_size",&nodesize,&flg);CHKERRQ(ierr); 916 if (flg) { 917 #if defined(PETSC_HAVE_MPI_COMM_SPAWN) 918 ierr = PetscHMPISpawn((PetscMPIInt) nodesize);CHKERRQ(ierr); /* worker nodes never return from here; they go directly to PetscEnd() */ 919 #else 920 SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"PETSc built without MPI 2 (MPI_Comm_spawn) support, use -hmpi_merge_size instead"); 921 #endif 922 } else { 923 ierr = PetscOptionsGetInt(NULL,"-hmpi_merge_size",&nodesize,&flg);CHKERRQ(ierr); 924 if (flg) { 925 ierr = PetscHMPIMerge((PetscMPIInt) nodesize,NULL,NULL);CHKERRQ(ierr); 926 if (PetscHMPIWorker) { /* if worker then never enter user code */ 927 PetscInitializeCalled = PETSC_TRUE; 928 PetscEnd(); 929 } 930 } 931 } 932 933 #if defined(PETSC_HAVE_CUDA) 934 flg = PETSC_TRUE; 935 ierr = PetscOptionsGetBool(NULL,"-cublas",&flg,NULL);CHKERRQ(ierr); 936 if (flg) { 937 PetscMPIInt p; 938 for (p = 0; p < PetscGlobalSize; ++p) { 939 if (p == PetscGlobalRank) cublasInit(); 940 ierr = MPI_Barrier(PETSC_COMM_WORLD);CHKERRQ(ierr); 941 } 942 } 943 #endif 944 945 ierr = PetscOptionsHasName(NULL,"-python",&flg);CHKERRQ(ierr); 946 if (flg) { 947 PetscInitializeCalled = PETSC_TRUE; 948 ierr = PetscPythonInitialize(NULL,NULL);CHKERRQ(ierr); 949 } 950 951 ierr = PetscThreadCommInitializePackage();CHKERRQ(ierr); 952 953 /* 954 Setup building of stack frames for all function calls 955 */ 956 PetscThreadLocalRegister((PetscThreadKey*)&petscstack); /* Creates pthread_key */ 957 #if defined(PETSC_USE_DEBUG) 958 ierr = PetscStackCreate();CHKERRQ(ierr); 959 #endif 960 961 #if defined(PETSC_SERIALIZE_FUNCTIONS) 962 ierr = PetscFPTCreate(10000);CHKERRQ(ierr); 963 #endif 964 965 966 /* 967 Once we are completedly initialized then we can set this variables 968 */ 969 PetscInitializeCalled = PETSC_TRUE; 970 PetscFunctionReturn(0); 971 } 972 973 extern PetscObject *PetscObjects; 974 extern PetscInt PetscObjectsCounts, PetscObjectsMaxCounts; 975 976 #undef __FUNCT__ 977 #define __FUNCT__ "PetscFinalize" 978 /*@C 979 PetscFinalize - Checks for options to be called at the conclusion 980 of the program. MPI_Finalize() is called only if the user had not 981 called MPI_Init() before calling PetscInitialize(). 982 983 Collective on PETSC_COMM_WORLD 984 985 Options Database Keys: 986 + -options_table - Calls PetscOptionsView() 987 . -options_left - Prints unused options that remain in the database 988 . -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 989 . -mpidump - Calls PetscMPIDump() 990 . -malloc_dump - Calls PetscMallocDump() 991 . -malloc_info - Prints total memory usage 992 - -malloc_log - Prints summary of memory usage 993 994 Level: beginner 995 996 Note: 997 See PetscInitialize() for more general runtime options. 998 999 .seealso: PetscInitialize(), PetscOptionsView(), PetscMallocDump(), PetscMPIDump(), PetscEnd() 1000 @*/ 1001 PetscErrorCode PetscFinalize(void) 1002 { 1003 PetscErrorCode ierr; 1004 PetscMPIInt rank; 1005 PetscInt nopt; 1006 PetscBool flg1 = PETSC_FALSE,flg2 = PETSC_FALSE,flg3 = PETSC_FALSE; 1007 PetscBool flg; 1008 #if defined(PETSC_USE_LOG) 1009 char mname[PETSC_MAX_PATH_LEN]; 1010 #endif 1011 1012 PetscFunctionBegin; 1013 if (!PetscInitializeCalled) { 1014 printf("PetscInitialize() must be called before PetscFinalize()\n"); 1015 PetscFunctionReturn(PETSC_ERR_ARG_WRONGSTATE); 1016 } 1017 ierr = PetscInfo(NULL,"PetscFinalize() called\n");CHKERRQ(ierr); 1018 1019 ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr); 1020 1021 ierr = PetscOptionsHasName(NULL,"-citations",&flg);CHKERRQ(ierr); 1022 if (flg) { 1023 char *cits, filename[PETSC_MAX_PATH_LEN]; 1024 FILE *fd = PETSC_STDOUT; 1025 1026 ierr = PetscOptionsGetString(NULL,"-citations",filename,PETSC_MAX_PATH_LEN,NULL);CHKERRQ(ierr); 1027 if (filename[0]) { 1028 ierr = PetscFOpen(PETSC_COMM_WORLD,filename,"w",&fd);CHKERRQ(ierr); 1029 } 1030 ierr = PetscSegBufferGet(PetscCitationsList,1,&cits);CHKERRQ(ierr); 1031 cits[0] = 0; 1032 ierr = PetscSegBufferExtractAlloc(PetscCitationsList,&cits);CHKERRQ(ierr); 1033 ierr = PetscFPrintf(PETSC_COMM_WORLD,fd,"If you publish results based on this computation please cite the following:\n");CHKERRQ(ierr); 1034 ierr = PetscFPrintf(PETSC_COMM_WORLD,fd,"===========================================================================\n");CHKERRQ(ierr); 1035 ierr = PetscFPrintf(PETSC_COMM_WORLD,fd,"%s",cits);CHKERRQ(ierr); 1036 ierr = PetscFPrintf(PETSC_COMM_WORLD,fd,"===========================================================================\n");CHKERRQ(ierr); 1037 ierr = PetscFClose(PETSC_COMM_WORLD,fd);CHKERRQ(ierr); 1038 ierr = PetscFree(cits);CHKERRQ(ierr); 1039 } 1040 ierr = PetscSegBufferDestroy(&PetscCitationsList);CHKERRQ(ierr); 1041 1042 #if defined(PETSC_SERIALIZE_FUNCTIONS) 1043 ierr = PetscFPTDestroy();CHKERRQ(ierr); 1044 #endif 1045 1046 1047 #if defined(PETSC_HAVE_SAWS) 1048 flg = PETSC_FALSE; 1049 ierr = PetscOptionsGetBool(NULL,"-saw_options",&flg,NULL);CHKERRQ(ierr); 1050 if (flg) { 1051 ierr = PetscOptionsSAWsDestroy();CHKERRQ(ierr); 1052 } 1053 #endif 1054 1055 #if defined(PETSC_USE_SERVER) 1056 flg1 = PETSC_FALSE; 1057 ierr = PetscOptionsGetBool(NULL,"-server",&flg1,NULL);CHKERRQ(ierr); 1058 if (flg1) { 1059 /* this is a crude hack, but better than nothing */ 1060 ierr = PetscPOpen(PETSC_COMM_WORLD,NULL,"pkill -9 petscwebserver","r",NULL);CHKERRQ(ierr); 1061 } 1062 #endif 1063 1064 #if defined(PETSC_HAVE_X) 1065 flg1 = PETSC_FALSE; 1066 ierr = PetscOptionsGetBool(NULL,"-x_virtual",&flg1,NULL);CHKERRQ(ierr); 1067 if (flg1) { 1068 /* this is a crude hack, but better than nothing */ 1069 ierr = PetscPOpen(PETSC_COMM_WORLD,NULL,"pkill -9 Xvfb","r",NULL);CHKERRQ(ierr); 1070 } 1071 #endif 1072 1073 ierr = PetscHMPIFinalize();CHKERRQ(ierr); 1074 1075 ierr = PetscOptionsGetBool(NULL,"-malloc_info",&flg2,NULL);CHKERRQ(ierr); 1076 if (!flg2) { 1077 flg2 = PETSC_FALSE; 1078 ierr = PetscOptionsGetBool(NULL,"-memory_info",&flg2,NULL);CHKERRQ(ierr); 1079 } 1080 if (flg2) { 1081 ierr = PetscMemoryShowUsage(PETSC_VIEWER_STDOUT_WORLD,"Summary of Memory Usage in PETSc\n");CHKERRQ(ierr); 1082 } 1083 1084 #if defined(PETSC_USE_LOG) 1085 flg1 = PETSC_FALSE; 1086 ierr = PetscOptionsGetBool(NULL,"-get_total_flops",&flg1,NULL);CHKERRQ(ierr); 1087 if (flg1) { 1088 PetscLogDouble flops = 0; 1089 ierr = MPI_Reduce(&petsc_TotalFlops,&flops,1,MPI_DOUBLE,MPI_SUM,0,PETSC_COMM_WORLD);CHKERRQ(ierr); 1090 ierr = PetscPrintf(PETSC_COMM_WORLD,"Total flops over all processors %g\n",flops);CHKERRQ(ierr); 1091 } 1092 #endif 1093 1094 1095 #if defined(PETSC_USE_LOG) 1096 #if defined(PETSC_HAVE_MPE) 1097 mname[0] = 0; 1098 1099 ierr = PetscOptionsGetString(NULL,"-log_mpe",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1100 if (flg1) { 1101 if (mname[0]) {ierr = PetscLogMPEDump(mname);CHKERRQ(ierr);} 1102 else {ierr = PetscLogMPEDump(0);CHKERRQ(ierr);} 1103 } 1104 #endif 1105 mname[0] = 0; 1106 1107 ierr = PetscOptionsGetString(NULL,"-log_summary",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1108 if (flg1) { 1109 PetscViewer viewer; 1110 if (mname[0]) { 1111 ierr = PetscViewerASCIIOpen(PETSC_COMM_WORLD,mname,&viewer);CHKERRQ(ierr); 1112 ierr = PetscLogView(viewer);CHKERRQ(ierr); 1113 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 1114 } else { 1115 viewer = PETSC_VIEWER_STDOUT_WORLD; 1116 ierr = PetscLogView(viewer);CHKERRQ(ierr); 1117 } 1118 } 1119 1120 mname[0] = 0; 1121 1122 ierr = PetscOptionsGetString(NULL,"-log_summary_python",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1123 if (flg1) { 1124 PetscViewer viewer; 1125 if (mname[0]) { 1126 ierr = PetscViewerASCIIOpen(PETSC_COMM_WORLD,mname,&viewer);CHKERRQ(ierr); 1127 ierr = PetscLogViewPython(viewer);CHKERRQ(ierr); 1128 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 1129 } else { 1130 viewer = PETSC_VIEWER_STDOUT_WORLD; 1131 ierr = PetscLogViewPython(viewer);CHKERRQ(ierr); 1132 } 1133 } 1134 1135 ierr = PetscOptionsGetString(NULL,"-log_detailed",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1136 if (flg1) { 1137 if (mname[0]) {ierr = PetscLogPrintDetailed(PETSC_COMM_WORLD,mname);CHKERRQ(ierr);} 1138 else {ierr = PetscLogPrintDetailed(PETSC_COMM_WORLD,0);CHKERRQ(ierr);} 1139 } 1140 1141 mname[0] = 0; 1142 1143 ierr = PetscOptionsGetString(NULL,"-log_all",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1144 ierr = PetscOptionsGetString(NULL,"-log",mname,PETSC_MAX_PATH_LEN,&flg2);CHKERRQ(ierr); 1145 if (flg1 || flg2) { 1146 if (mname[0]) PetscLogDump(mname); 1147 else PetscLogDump(0); 1148 } 1149 #endif 1150 1151 /* 1152 Free all objects registered with PetscObjectRegisterDestroy() such as PETSC_VIEWER_XXX_(). 1153 */ 1154 ierr = PetscObjectRegisterDestroyAll();CHKERRQ(ierr); 1155 1156 ierr = PetscStackDestroy();CHKERRQ(ierr); 1157 PetscThreadLocalDestroy((PetscThreadKey)petscstack); /* Deletes pthread_key */ 1158 1159 flg1 = PETSC_FALSE; 1160 ierr = PetscOptionsGetBool(NULL,"-no_signal_handler",&flg1,NULL);CHKERRQ(ierr); 1161 if (!flg1) { ierr = PetscPopSignalHandler();CHKERRQ(ierr);} 1162 flg1 = PETSC_FALSE; 1163 ierr = PetscOptionsGetBool(NULL,"-mpidump",&flg1,NULL);CHKERRQ(ierr); 1164 if (flg1) { 1165 ierr = PetscMPIDump(stdout);CHKERRQ(ierr); 1166 } 1167 flg1 = PETSC_FALSE; 1168 flg2 = PETSC_FALSE; 1169 /* preemptive call to avoid listing this option in options table as unused */ 1170 ierr = PetscOptionsHasName(NULL,"-malloc_dump",&flg1);CHKERRQ(ierr); 1171 ierr = PetscOptionsHasName(NULL,"-objects_dump",&flg1);CHKERRQ(ierr); 1172 ierr = PetscOptionsGetBool(NULL,"-options_table",&flg2,NULL);CHKERRQ(ierr); 1173 1174 if (flg2) { 1175 PetscViewer viewer; 1176 ierr = PetscViewerASCIIGetStdout(PETSC_COMM_WORLD,&viewer);CHKERRQ(ierr); 1177 ierr = PetscOptionsView(viewer);CHKERRQ(ierr); 1178 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 1179 } 1180 1181 /* to prevent PETSc -options_left from warning */ 1182 ierr = PetscOptionsHasName(NULL,"-nox",&flg1);CHKERRQ(ierr); 1183 ierr = PetscOptionsHasName(NULL,"-nox_warning",&flg1);CHKERRQ(ierr); 1184 1185 if (!PetscHMPIWorker) { /* worker processes skip this because they do not usually process options */ 1186 flg3 = PETSC_FALSE; /* default value is required */ 1187 ierr = PetscOptionsGetBool(NULL,"-options_left",&flg3,&flg1);CHKERRQ(ierr); 1188 ierr = PetscOptionsAllUsed(&nopt);CHKERRQ(ierr); 1189 if (flg3) { 1190 if (!flg2) { /* have not yet printed the options */ 1191 PetscViewer viewer; 1192 ierr = PetscViewerASCIIGetStdout(PETSC_COMM_WORLD,&viewer);CHKERRQ(ierr); 1193 ierr = PetscOptionsView(viewer);CHKERRQ(ierr); 1194 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 1195 } 1196 if (!nopt) { 1197 ierr = PetscPrintf(PETSC_COMM_WORLD,"There are no unused options.\n");CHKERRQ(ierr); 1198 } else if (nopt == 1) { 1199 ierr = PetscPrintf(PETSC_COMM_WORLD,"There is one unused database option. It is:\n");CHKERRQ(ierr); 1200 } else { 1201 ierr = PetscPrintf(PETSC_COMM_WORLD,"There are %D unused database options. They are:\n",nopt);CHKERRQ(ierr); 1202 } 1203 } 1204 #if defined(PETSC_USE_DEBUG) 1205 if (nopt && !flg3 && !flg1) { 1206 ierr = PetscPrintf(PETSC_COMM_WORLD,"WARNING! There are options you set that were not used!\n");CHKERRQ(ierr); 1207 ierr = PetscPrintf(PETSC_COMM_WORLD,"WARNING! could be spelling mistake, etc!\n");CHKERRQ(ierr); 1208 ierr = PetscOptionsLeft();CHKERRQ(ierr); 1209 } else if (nopt && flg3) { 1210 #else 1211 if (nopt && flg3) { 1212 #endif 1213 ierr = PetscOptionsLeft();CHKERRQ(ierr); 1214 } 1215 } 1216 1217 #if defined(PETSC_HAVE_SAWS) 1218 if (!PetscGlobalRank) { 1219 ierr = PetscStackSAWsViewOff();CHKERRQ(ierr); 1220 PetscStackCallSAWs(SAWs_Finalize,()); 1221 } 1222 #endif 1223 1224 { 1225 PetscThreadComm tcomm_world; 1226 ierr = PetscGetThreadCommWorld(&tcomm_world);CHKERRQ(ierr); 1227 /* Free global thread communicator */ 1228 ierr = PetscThreadCommDestroy(&tcomm_world);CHKERRQ(ierr); 1229 } 1230 1231 /* 1232 List all objects the user may have forgot to free 1233 */ 1234 ierr = PetscOptionsHasName(NULL,"-objects_dump",&flg1);CHKERRQ(ierr); 1235 if (flg1) { 1236 MPI_Comm local_comm; 1237 char string[64]; 1238 1239 ierr = PetscOptionsGetString(NULL,"-objects_dump",string,64,NULL);CHKERRQ(ierr); 1240 ierr = MPI_Comm_dup(MPI_COMM_WORLD,&local_comm);CHKERRQ(ierr); 1241 ierr = PetscSequentialPhaseBegin_Private(local_comm,1);CHKERRQ(ierr); 1242 ierr = PetscObjectsDump(stdout,(string[0] == 'a') ? PETSC_TRUE : PETSC_FALSE);CHKERRQ(ierr); 1243 ierr = PetscSequentialPhaseEnd_Private(local_comm,1);CHKERRQ(ierr); 1244 ierr = MPI_Comm_free(&local_comm);CHKERRQ(ierr); 1245 } 1246 PetscObjectsCounts = 0; 1247 PetscObjectsMaxCounts = 0; 1248 1249 ierr = PetscFree(PetscObjects);CHKERRQ(ierr); 1250 1251 #if defined(PETSC_USE_LOG) 1252 ierr = PetscLogDestroy();CHKERRQ(ierr); 1253 #endif 1254 1255 /* 1256 Destroy any packages that registered a finalize 1257 */ 1258 ierr = PetscRegisterFinalizeAll();CHKERRQ(ierr); 1259 1260 /* 1261 Destroy all the function registration lists created 1262 */ 1263 ierr = PetscFinalize_DynamicLibraries();CHKERRQ(ierr); 1264 1265 /* 1266 Print PetscFunctionLists that have not been properly freed 1267 1268 ierr = PetscFunctionListPrintAll();CHKERRQ(ierr); 1269 */ 1270 1271 if (petsc_history) { 1272 ierr = PetscCloseHistoryFile(&petsc_history);CHKERRQ(ierr); 1273 petsc_history = 0; 1274 } 1275 1276 ierr = PetscInfoAllow(PETSC_FALSE,NULL);CHKERRQ(ierr); 1277 1278 { 1279 char fname[PETSC_MAX_PATH_LEN]; 1280 FILE *fd; 1281 int err; 1282 1283 fname[0] = 0; 1284 1285 ierr = PetscOptionsGetString(NULL,"-malloc_dump",fname,250,&flg1);CHKERRQ(ierr); 1286 flg2 = PETSC_FALSE; 1287 ierr = PetscOptionsGetBool(NULL,"-malloc_test",&flg2,NULL);CHKERRQ(ierr); 1288 #if defined(PETSC_USE_DEBUG) 1289 if (PETSC_RUNNING_ON_VALGRIND) flg2 = PETSC_FALSE; 1290 #else 1291 flg2 = PETSC_FALSE; /* Skip reporting for optimized builds regardless of -malloc_test */ 1292 #endif 1293 if (flg1 && fname[0]) { 1294 char sname[PETSC_MAX_PATH_LEN]; 1295 1296 sprintf(sname,"%s_%d",fname,rank); 1297 fd = fopen(sname,"w"); if (!fd) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Cannot open log file: %s",sname); 1298 ierr = PetscMallocDump(fd);CHKERRQ(ierr); 1299 err = fclose(fd); 1300 if (err) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SYS,"fclose() failed on file"); 1301 } else if (flg1 || flg2) { 1302 MPI_Comm local_comm; 1303 1304 ierr = MPI_Comm_dup(MPI_COMM_WORLD,&local_comm);CHKERRQ(ierr); 1305 ierr = PetscSequentialPhaseBegin_Private(local_comm,1);CHKERRQ(ierr); 1306 ierr = PetscMallocDump(stdout);CHKERRQ(ierr); 1307 ierr = PetscSequentialPhaseEnd_Private(local_comm,1);CHKERRQ(ierr); 1308 ierr = MPI_Comm_free(&local_comm);CHKERRQ(ierr); 1309 } 1310 } 1311 1312 { 1313 char fname[PETSC_MAX_PATH_LEN]; 1314 FILE *fd = NULL; 1315 1316 fname[0] = 0; 1317 1318 ierr = PetscOptionsGetString(NULL,"-malloc_log",fname,250,&flg1);CHKERRQ(ierr); 1319 ierr = PetscOptionsHasName(NULL,"-malloc_log_threshold",&flg2);CHKERRQ(ierr); 1320 if (flg1 && fname[0]) { 1321 int err; 1322 1323 if (!rank) { 1324 fd = fopen(fname,"w"); 1325 if (!fd) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Cannot open log file: %s",fname); 1326 } 1327 ierr = PetscMallocDumpLog(fd);CHKERRQ(ierr); 1328 if (fd) { 1329 err = fclose(fd); 1330 if (err) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SYS,"fclose() failed on file"); 1331 } 1332 } else if (flg1 || flg2) { 1333 ierr = PetscMallocDumpLog(stdout);CHKERRQ(ierr); 1334 } 1335 } 1336 1337 #if defined(PETSC_HAVE_CUDA) 1338 flg = PETSC_TRUE; 1339 ierr = PetscOptionsGetBool(NULL,"-cublas",&flg,NULL);CHKERRQ(ierr); 1340 if (flg) { 1341 PetscInt p; 1342 for (p = 0; p < PetscGlobalSize; ++p) { 1343 if (p == PetscGlobalRank) cublasShutdown(); 1344 ierr = MPI_Barrier(PETSC_COMM_WORLD);CHKERRQ(ierr); 1345 } 1346 } 1347 #endif 1348 1349 /* Can be destroyed only after all the options are used */ 1350 ierr = PetscOptionsDestroy();CHKERRQ(ierr); 1351 1352 PetscGlobalArgc = 0; 1353 PetscGlobalArgs = 0; 1354 1355 #if defined(PETSC_USE_REAL___FLOAT128) 1356 ierr = MPI_Type_free(&MPIU___FLOAT128);CHKERRQ(ierr); 1357 #if defined(PETSC_HAVE_COMPLEX) 1358 ierr = MPI_Type_free(&MPIU___COMPLEX128);CHKERRQ(ierr); 1359 #endif 1360 ierr = MPI_Op_free(&MPIU_MAX);CHKERRQ(ierr); 1361 ierr = MPI_Op_free(&MPIU_MIN);CHKERRQ(ierr); 1362 #endif 1363 1364 #if defined(PETSC_HAVE_COMPLEX) 1365 #if !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX) 1366 ierr = MPI_Type_free(&MPIU_C_DOUBLE_COMPLEX);CHKERRQ(ierr); 1367 ierr = MPI_Type_free(&MPIU_C_COMPLEX);CHKERRQ(ierr); 1368 #endif 1369 #endif 1370 1371 #if (defined(PETSC_HAVE_COMPLEX) && !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX)) || defined(PETSC_USE_REAL___FLOAT128) 1372 ierr = MPI_Op_free(&MPIU_SUM);CHKERRQ(ierr); 1373 #endif 1374 1375 ierr = MPI_Type_free(&MPIU_2SCALAR);CHKERRQ(ierr); 1376 #if defined(PETSC_USE_64BIT_INDICES) || !defined(MPI_2INT) 1377 ierr = MPI_Type_free(&MPIU_2INT);CHKERRQ(ierr); 1378 #endif 1379 ierr = MPI_Op_free(&PetscMaxSum_Op);CHKERRQ(ierr); 1380 ierr = MPI_Op_free(&PetscADMax_Op);CHKERRQ(ierr); 1381 ierr = MPI_Op_free(&PetscADMin_Op);CHKERRQ(ierr); 1382 1383 /* 1384 Destroy any known inner MPI_Comm's and attributes pointing to them 1385 Note this will not destroy any new communicators the user has created. 1386 1387 If all PETSc objects were not destroyed those left over objects will have hanging references to 1388 the MPI_Comms that were freed; but that is ok because those PETSc objects will never be used again 1389 */ 1390 { 1391 PetscCommCounter *counter; 1392 PetscMPIInt flg; 1393 MPI_Comm icomm; 1394 union {MPI_Comm comm; void *ptr;} ucomm; 1395 ierr = MPI_Attr_get(PETSC_COMM_SELF,Petsc_InnerComm_keyval,&ucomm,&flg);CHKERRQ(ierr); 1396 if (flg) { 1397 icomm = ucomm.comm; 1398 ierr = MPI_Attr_get(icomm,Petsc_Counter_keyval,&counter,&flg);CHKERRQ(ierr); 1399 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_CORRUPT,"Inner MPI_Comm does not have expected tag/name counter, problem with corrupted memory"); 1400 1401 ierr = MPI_Attr_delete(PETSC_COMM_SELF,Petsc_InnerComm_keyval);CHKERRQ(ierr); 1402 ierr = MPI_Attr_delete(icomm,Petsc_Counter_keyval);CHKERRQ(ierr); 1403 ierr = MPI_Comm_free(&icomm);CHKERRQ(ierr); 1404 } 1405 ierr = MPI_Attr_get(PETSC_COMM_WORLD,Petsc_InnerComm_keyval,&ucomm,&flg);CHKERRQ(ierr); 1406 if (flg) { 1407 icomm = ucomm.comm; 1408 ierr = MPI_Attr_get(icomm,Petsc_Counter_keyval,&counter,&flg);CHKERRQ(ierr); 1409 if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_ARG_CORRUPT,"Inner MPI_Comm does not have expected tag/name counter, problem with corrupted memory"); 1410 1411 ierr = MPI_Attr_delete(PETSC_COMM_WORLD,Petsc_InnerComm_keyval);CHKERRQ(ierr); 1412 ierr = MPI_Attr_delete(icomm,Petsc_Counter_keyval);CHKERRQ(ierr); 1413 ierr = MPI_Comm_free(&icomm);CHKERRQ(ierr); 1414 } 1415 } 1416 1417 ierr = MPI_Keyval_free(&Petsc_Counter_keyval);CHKERRQ(ierr); 1418 ierr = MPI_Keyval_free(&Petsc_InnerComm_keyval);CHKERRQ(ierr); 1419 ierr = MPI_Keyval_free(&Petsc_OuterComm_keyval);CHKERRQ(ierr); 1420 1421 if (PetscBeganMPI) { 1422 #if defined(PETSC_HAVE_MPI_FINALIZED) 1423 PetscMPIInt flag; 1424 ierr = MPI_Finalized(&flag);CHKERRQ(ierr); 1425 if (flag) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"MPI_Finalize() has already been called, even though MPI_Init() was called by PetscInitialize()"); 1426 #endif 1427 ierr = MPI_Finalize();CHKERRQ(ierr); 1428 } 1429 /* 1430 1431 Note: In certain cases PETSC_COMM_WORLD is never MPI_Comm_free()ed because 1432 the communicator has some outstanding requests on it. Specifically if the 1433 flag PETSC_HAVE_BROKEN_REQUEST_FREE is set (for IBM MPI implementation). See 1434 src/vec/utils/vpscat.c. Due to this the memory allocated in PetscCommDuplicate() 1435 is never freed as it should be. Thus one may obtain messages of the form 1436 [ 1] 8 bytes PetscCommDuplicate() line 645 in src/sys/mpiu.c indicating the 1437 memory was not freed. 1438 1439 */ 1440 ierr = PetscMallocClear();CHKERRQ(ierr); 1441 1442 PetscInitializeCalled = PETSC_FALSE; 1443 PetscFinalizeCalled = PETSC_TRUE; 1444 PetscFunctionReturn(ierr); 1445 } 1446 1447 #if defined(PETSC_MISSING_LAPACK_lsame_) 1448 PETSC_EXTERN int lsame_(char *a,char *b) 1449 { 1450 if (*a == *b) return 1; 1451 if (*a + 32 == *b) return 1; 1452 if (*a - 32 == *b) return 1; 1453 return 0; 1454 } 1455 #endif 1456 1457 #if defined(PETSC_MISSING_LAPACK_lsame) 1458 PETSC_EXTERN int lsame(char *a,char *b) 1459 { 1460 if (*a == *b) return 1; 1461 if (*a + 32 == *b) return 1; 1462 if (*a - 32 == *b) return 1; 1463 return 0; 1464 } 1465 #endif 1466