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 extern PetscObject *PetscObjects; 973 extern PetscInt PetscObjectsCounts, PetscObjectsMaxCounts; 974 975 #undef __FUNCT__ 976 #define __FUNCT__ "PetscFinalize" 977 /*@C 978 PetscFinalize - Checks for options to be called at the conclusion 979 of the program. MPI_Finalize() is called only if the user had not 980 called MPI_Init() before calling PetscInitialize(). 981 982 Collective on PETSC_COMM_WORLD 983 984 Options Database Keys: 985 + -options_table - Calls PetscOptionsView() 986 . -options_left - Prints unused options that remain in the database 987 . -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 988 . -mpidump - Calls PetscMPIDump() 989 . -malloc_dump - Calls PetscMallocDump() 990 . -malloc_info - Prints total memory usage 991 - -malloc_log - Prints summary of memory usage 992 993 Level: beginner 994 995 Note: 996 See PetscInitialize() for more general runtime options. 997 998 .seealso: PetscInitialize(), PetscOptionsView(), PetscMallocDump(), PetscMPIDump(), PetscEnd() 999 @*/ 1000 PetscErrorCode PetscFinalize(void) 1001 { 1002 PetscErrorCode ierr; 1003 PetscMPIInt rank; 1004 PetscInt nopt; 1005 PetscBool flg1 = PETSC_FALSE,flg2 = PETSC_FALSE,flg3 = PETSC_FALSE; 1006 PetscBool flg; 1007 #if defined(PETSC_USE_LOG) 1008 char mname[PETSC_MAX_PATH_LEN]; 1009 #endif 1010 1011 PetscFunctionBegin; 1012 if (!PetscInitializeCalled) { 1013 printf("PetscInitialize() must be called before PetscFinalize()\n"); 1014 PetscFunctionReturn(PETSC_ERR_ARG_WRONGSTATE); 1015 } 1016 ierr = PetscInfo(NULL,"PetscFinalize() called\n");CHKERRQ(ierr); 1017 1018 ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr); 1019 1020 ierr = PetscOptionsHasName(NULL,"-citations",&flg);CHKERRQ(ierr); 1021 if (flg) { 1022 char *cits, filename[PETSC_MAX_PATH_LEN]; 1023 FILE *fd = PETSC_STDOUT; 1024 1025 ierr = PetscOptionsGetString(NULL,"-citations",filename,PETSC_MAX_PATH_LEN,NULL);CHKERRQ(ierr); 1026 if (filename[0]) { 1027 ierr = PetscFOpen(PETSC_COMM_WORLD,filename,"w",&fd);CHKERRQ(ierr); 1028 } 1029 ierr = PetscSegBufferGet(PetscCitationsList,1,&cits);CHKERRQ(ierr); 1030 cits[0] = 0; 1031 ierr = PetscSegBufferExtractAlloc(PetscCitationsList,&cits);CHKERRQ(ierr); 1032 ierr = PetscFPrintf(PETSC_COMM_WORLD,fd,"If you publish results based on this computation please cite the following:\n");CHKERRQ(ierr); 1033 ierr = PetscFPrintf(PETSC_COMM_WORLD,fd,"===========================================================================\n");CHKERRQ(ierr); 1034 ierr = PetscFPrintf(PETSC_COMM_WORLD,fd,"%s",cits);CHKERRQ(ierr); 1035 ierr = PetscFPrintf(PETSC_COMM_WORLD,fd,"===========================================================================\n");CHKERRQ(ierr); 1036 ierr = PetscFClose(PETSC_COMM_WORLD,fd);CHKERRQ(ierr); 1037 ierr = PetscFree(cits);CHKERRQ(ierr); 1038 } 1039 ierr = PetscSegBufferDestroy(&PetscCitationsList);CHKERRQ(ierr); 1040 1041 #if defined(PETSC_SERIALIZE_FUNCTIONS) 1042 ierr = PetscFPTDestroy();CHKERRQ(ierr); 1043 #endif 1044 1045 1046 #if defined(PETSC_HAVE_SAWS) 1047 flg = PETSC_FALSE; 1048 ierr = PetscOptionsGetBool(NULL,"-saw_options",&flg,NULL);CHKERRQ(ierr); 1049 if (flg) { 1050 ierr = PetscOptionsSAWsDestroy();CHKERRQ(ierr); 1051 } 1052 #endif 1053 1054 #if defined(PETSC_HAVE_X) 1055 flg1 = PETSC_FALSE; 1056 ierr = PetscOptionsGetBool(NULL,"-x_virtual",&flg1,NULL);CHKERRQ(ierr); 1057 if (flg1) { 1058 /* this is a crude hack, but better than nothing */ 1059 ierr = PetscPOpen(PETSC_COMM_WORLD,NULL,"pkill -9 Xvfb","r",NULL);CHKERRQ(ierr); 1060 } 1061 #endif 1062 1063 ierr = PetscHMPIFinalize();CHKERRQ(ierr); 1064 1065 ierr = PetscOptionsGetBool(NULL,"-malloc_info",&flg2,NULL);CHKERRQ(ierr); 1066 if (!flg2) { 1067 flg2 = PETSC_FALSE; 1068 ierr = PetscOptionsGetBool(NULL,"-memory_info",&flg2,NULL);CHKERRQ(ierr); 1069 } 1070 if (flg2) { 1071 ierr = PetscMemoryShowUsage(PETSC_VIEWER_STDOUT_WORLD,"Summary of Memory Usage in PETSc\n");CHKERRQ(ierr); 1072 } 1073 1074 #if defined(PETSC_USE_LOG) 1075 flg1 = PETSC_FALSE; 1076 ierr = PetscOptionsGetBool(NULL,"-get_total_flops",&flg1,NULL);CHKERRQ(ierr); 1077 if (flg1) { 1078 PetscLogDouble flops = 0; 1079 ierr = MPI_Reduce(&petsc_TotalFlops,&flops,1,MPI_DOUBLE,MPI_SUM,0,PETSC_COMM_WORLD);CHKERRQ(ierr); 1080 ierr = PetscPrintf(PETSC_COMM_WORLD,"Total flops over all processors %g\n",flops);CHKERRQ(ierr); 1081 } 1082 #endif 1083 1084 1085 #if defined(PETSC_USE_LOG) 1086 #if defined(PETSC_HAVE_MPE) 1087 mname[0] = 0; 1088 1089 ierr = PetscOptionsGetString(NULL,"-log_mpe",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1090 if (flg1) { 1091 if (mname[0]) {ierr = PetscLogMPEDump(mname);CHKERRQ(ierr);} 1092 else {ierr = PetscLogMPEDump(0);CHKERRQ(ierr);} 1093 } 1094 #endif 1095 mname[0] = 0; 1096 1097 ierr = PetscOptionsGetString(NULL,"-log_summary",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1098 if (flg1) { 1099 PetscViewer viewer; 1100 if (mname[0]) { 1101 ierr = PetscViewerASCIIOpen(PETSC_COMM_WORLD,mname,&viewer);CHKERRQ(ierr); 1102 ierr = PetscLogView(viewer);CHKERRQ(ierr); 1103 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 1104 } else { 1105 viewer = PETSC_VIEWER_STDOUT_WORLD; 1106 ierr = PetscLogView(viewer);CHKERRQ(ierr); 1107 } 1108 } 1109 1110 mname[0] = 0; 1111 1112 ierr = PetscOptionsGetString(NULL,"-log_summary_python",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1113 if (flg1) { 1114 PetscViewer viewer; 1115 if (mname[0]) { 1116 ierr = PetscViewerASCIIOpen(PETSC_COMM_WORLD,mname,&viewer);CHKERRQ(ierr); 1117 ierr = PetscLogViewPython(viewer);CHKERRQ(ierr); 1118 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 1119 } else { 1120 viewer = PETSC_VIEWER_STDOUT_WORLD; 1121 ierr = PetscLogViewPython(viewer);CHKERRQ(ierr); 1122 } 1123 } 1124 1125 ierr = PetscOptionsGetString(NULL,"-log_detailed",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1126 if (flg1) { 1127 if (mname[0]) {ierr = PetscLogPrintDetailed(PETSC_COMM_WORLD,mname);CHKERRQ(ierr);} 1128 else {ierr = PetscLogPrintDetailed(PETSC_COMM_WORLD,0);CHKERRQ(ierr);} 1129 } 1130 1131 mname[0] = 0; 1132 1133 ierr = PetscOptionsGetString(NULL,"-log_all",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1134 ierr = PetscOptionsGetString(NULL,"-log",mname,PETSC_MAX_PATH_LEN,&flg2);CHKERRQ(ierr); 1135 if (flg1 || flg2) { 1136 if (mname[0]) PetscLogDump(mname); 1137 else PetscLogDump(0); 1138 } 1139 #endif 1140 1141 /* 1142 Free all objects registered with PetscObjectRegisterDestroy() such as PETSC_VIEWER_XXX_(). 1143 */ 1144 ierr = PetscObjectRegisterDestroyAll();CHKERRQ(ierr); 1145 1146 ierr = PetscStackDestroy();CHKERRQ(ierr); 1147 PetscThreadLocalDestroy((PetscThreadKey)petscstack); /* Deletes pthread_key */ 1148 1149 flg1 = PETSC_FALSE; 1150 ierr = PetscOptionsGetBool(NULL,"-no_signal_handler",&flg1,NULL);CHKERRQ(ierr); 1151 if (!flg1) { ierr = PetscPopSignalHandler();CHKERRQ(ierr);} 1152 flg1 = PETSC_FALSE; 1153 ierr = PetscOptionsGetBool(NULL,"-mpidump",&flg1,NULL);CHKERRQ(ierr); 1154 if (flg1) { 1155 ierr = PetscMPIDump(stdout);CHKERRQ(ierr); 1156 } 1157 flg1 = PETSC_FALSE; 1158 flg2 = PETSC_FALSE; 1159 /* preemptive call to avoid listing this option in options table as unused */ 1160 ierr = PetscOptionsHasName(NULL,"-malloc_dump",&flg1);CHKERRQ(ierr); 1161 ierr = PetscOptionsHasName(NULL,"-objects_dump",&flg1);CHKERRQ(ierr); 1162 ierr = PetscOptionsGetBool(NULL,"-options_table",&flg2,NULL);CHKERRQ(ierr); 1163 1164 if (flg2) { 1165 PetscViewer viewer; 1166 ierr = PetscViewerASCIIGetStdout(PETSC_COMM_WORLD,&viewer);CHKERRQ(ierr); 1167 ierr = PetscOptionsView(viewer);CHKERRQ(ierr); 1168 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 1169 } 1170 1171 /* to prevent PETSc -options_left from warning */ 1172 ierr = PetscOptionsHasName(NULL,"-nox",&flg1);CHKERRQ(ierr); 1173 ierr = PetscOptionsHasName(NULL,"-nox_warning",&flg1);CHKERRQ(ierr); 1174 1175 if (!PetscHMPIWorker) { /* worker processes skip this because they do not usually process options */ 1176 flg3 = PETSC_FALSE; /* default value is required */ 1177 ierr = PetscOptionsGetBool(NULL,"-options_left",&flg3,&flg1);CHKERRQ(ierr); 1178 ierr = PetscOptionsAllUsed(&nopt);CHKERRQ(ierr); 1179 if (flg3) { 1180 if (!flg2) { /* have not yet printed the options */ 1181 PetscViewer viewer; 1182 ierr = PetscViewerASCIIGetStdout(PETSC_COMM_WORLD,&viewer);CHKERRQ(ierr); 1183 ierr = PetscOptionsView(viewer);CHKERRQ(ierr); 1184 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 1185 } 1186 if (!nopt) { 1187 ierr = PetscPrintf(PETSC_COMM_WORLD,"There are no unused options.\n");CHKERRQ(ierr); 1188 } else if (nopt == 1) { 1189 ierr = PetscPrintf(PETSC_COMM_WORLD,"There is one unused database option. It is:\n");CHKERRQ(ierr); 1190 } else { 1191 ierr = PetscPrintf(PETSC_COMM_WORLD,"There are %D unused database options. They are:\n",nopt);CHKERRQ(ierr); 1192 } 1193 } 1194 #if defined(PETSC_USE_DEBUG) 1195 if (nopt && !flg3 && !flg1) { 1196 ierr = PetscPrintf(PETSC_COMM_WORLD,"WARNING! There are options you set that were not used!\n");CHKERRQ(ierr); 1197 ierr = PetscPrintf(PETSC_COMM_WORLD,"WARNING! could be spelling mistake, etc!\n");CHKERRQ(ierr); 1198 ierr = PetscOptionsLeft();CHKERRQ(ierr); 1199 } else if (nopt && flg3) { 1200 #else 1201 if (nopt && flg3) { 1202 #endif 1203 ierr = PetscOptionsLeft();CHKERRQ(ierr); 1204 } 1205 } 1206 1207 #if defined(PETSC_HAVE_SAWS) 1208 if (!PetscGlobalRank) { 1209 ierr = PetscStackSAWsViewOff();CHKERRQ(ierr); 1210 PetscStackCallSAWs(SAWs_Finalize,()); 1211 } 1212 #endif 1213 1214 { 1215 PetscThreadComm tcomm_world; 1216 ierr = PetscGetThreadCommWorld(&tcomm_world);CHKERRQ(ierr); 1217 /* Free global thread communicator */ 1218 ierr = PetscThreadCommDestroy(&tcomm_world);CHKERRQ(ierr); 1219 } 1220 1221 /* 1222 List all objects the user may have forgot to free 1223 */ 1224 ierr = PetscOptionsHasName(NULL,"-objects_dump",&flg1);CHKERRQ(ierr); 1225 if (flg1) { 1226 MPI_Comm local_comm; 1227 char string[64]; 1228 1229 ierr = PetscOptionsGetString(NULL,"-objects_dump",string,64,NULL);CHKERRQ(ierr); 1230 ierr = MPI_Comm_dup(MPI_COMM_WORLD,&local_comm);CHKERRQ(ierr); 1231 ierr = PetscSequentialPhaseBegin_Private(local_comm,1);CHKERRQ(ierr); 1232 ierr = PetscObjectsDump(stdout,(string[0] == 'a') ? PETSC_TRUE : PETSC_FALSE);CHKERRQ(ierr); 1233 ierr = PetscSequentialPhaseEnd_Private(local_comm,1);CHKERRQ(ierr); 1234 ierr = MPI_Comm_free(&local_comm);CHKERRQ(ierr); 1235 } 1236 PetscObjectsCounts = 0; 1237 PetscObjectsMaxCounts = 0; 1238 1239 ierr = PetscFree(PetscObjects);CHKERRQ(ierr); 1240 1241 #if defined(PETSC_USE_LOG) 1242 ierr = PetscLogDestroy();CHKERRQ(ierr); 1243 #endif 1244 1245 /* 1246 Destroy any packages that registered a finalize 1247 */ 1248 ierr = PetscRegisterFinalizeAll();CHKERRQ(ierr); 1249 1250 /* 1251 Destroy all the function registration lists created 1252 */ 1253 ierr = PetscFinalize_DynamicLibraries();CHKERRQ(ierr); 1254 1255 /* 1256 Print PetscFunctionLists that have not been properly freed 1257 1258 ierr = PetscFunctionListPrintAll();CHKERRQ(ierr); 1259 */ 1260 1261 if (petsc_history) { 1262 ierr = PetscCloseHistoryFile(&petsc_history);CHKERRQ(ierr); 1263 petsc_history = 0; 1264 } 1265 1266 ierr = PetscInfoAllow(PETSC_FALSE,NULL);CHKERRQ(ierr); 1267 1268 { 1269 char fname[PETSC_MAX_PATH_LEN]; 1270 FILE *fd; 1271 int err; 1272 1273 fname[0] = 0; 1274 1275 ierr = PetscOptionsGetString(NULL,"-malloc_dump",fname,250,&flg1);CHKERRQ(ierr); 1276 flg2 = PETSC_FALSE; 1277 ierr = PetscOptionsGetBool(NULL,"-malloc_test",&flg2,NULL);CHKERRQ(ierr); 1278 #if defined(PETSC_USE_DEBUG) 1279 if (PETSC_RUNNING_ON_VALGRIND) flg2 = PETSC_FALSE; 1280 #else 1281 flg2 = PETSC_FALSE; /* Skip reporting for optimized builds regardless of -malloc_test */ 1282 #endif 1283 if (flg1 && fname[0]) { 1284 char sname[PETSC_MAX_PATH_LEN]; 1285 1286 sprintf(sname,"%s_%d",fname,rank); 1287 fd = fopen(sname,"w"); if (!fd) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Cannot open log file: %s",sname); 1288 ierr = PetscMallocDump(fd);CHKERRQ(ierr); 1289 err = fclose(fd); 1290 if (err) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SYS,"fclose() failed on file"); 1291 } else if (flg1 || flg2) { 1292 MPI_Comm local_comm; 1293 1294 ierr = MPI_Comm_dup(MPI_COMM_WORLD,&local_comm);CHKERRQ(ierr); 1295 ierr = PetscSequentialPhaseBegin_Private(local_comm,1);CHKERRQ(ierr); 1296 ierr = PetscMallocDump(stdout);CHKERRQ(ierr); 1297 ierr = PetscSequentialPhaseEnd_Private(local_comm,1);CHKERRQ(ierr); 1298 ierr = MPI_Comm_free(&local_comm);CHKERRQ(ierr); 1299 } 1300 } 1301 1302 { 1303 char fname[PETSC_MAX_PATH_LEN]; 1304 FILE *fd = NULL; 1305 1306 fname[0] = 0; 1307 1308 ierr = PetscOptionsGetString(NULL,"-malloc_log",fname,250,&flg1);CHKERRQ(ierr); 1309 ierr = PetscOptionsHasName(NULL,"-malloc_log_threshold",&flg2);CHKERRQ(ierr); 1310 if (flg1 && fname[0]) { 1311 int err; 1312 1313 if (!rank) { 1314 fd = fopen(fname,"w"); 1315 if (!fd) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Cannot open log file: %s",fname); 1316 } 1317 ierr = PetscMallocDumpLog(fd);CHKERRQ(ierr); 1318 if (fd) { 1319 err = fclose(fd); 1320 if (err) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SYS,"fclose() failed on file"); 1321 } 1322 } else if (flg1 || flg2) { 1323 ierr = PetscMallocDumpLog(stdout);CHKERRQ(ierr); 1324 } 1325 } 1326 1327 #if defined(PETSC_HAVE_CUDA) 1328 flg = PETSC_TRUE; 1329 ierr = PetscOptionsGetBool(NULL,"-cublas",&flg,NULL);CHKERRQ(ierr); 1330 if (flg) { 1331 PetscInt p; 1332 for (p = 0; p < PetscGlobalSize; ++p) { 1333 if (p == PetscGlobalRank) cublasShutdown(); 1334 ierr = MPI_Barrier(PETSC_COMM_WORLD);CHKERRQ(ierr); 1335 } 1336 } 1337 #endif 1338 1339 /* Can be destroyed only after all the options are used */ 1340 ierr = PetscOptionsDestroy();CHKERRQ(ierr); 1341 1342 PetscGlobalArgc = 0; 1343 PetscGlobalArgs = 0; 1344 1345 #if defined(PETSC_USE_REAL___FLOAT128) 1346 ierr = MPI_Type_free(&MPIU___FLOAT128);CHKERRQ(ierr); 1347 #if defined(PETSC_HAVE_COMPLEX) 1348 ierr = MPI_Type_free(&MPIU___COMPLEX128);CHKERRQ(ierr); 1349 #endif 1350 ierr = MPI_Op_free(&MPIU_MAX);CHKERRQ(ierr); 1351 ierr = MPI_Op_free(&MPIU_MIN);CHKERRQ(ierr); 1352 #endif 1353 1354 #if defined(PETSC_HAVE_COMPLEX) 1355 #if !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX) 1356 ierr = MPI_Type_free(&MPIU_C_DOUBLE_COMPLEX);CHKERRQ(ierr); 1357 ierr = MPI_Type_free(&MPIU_C_COMPLEX);CHKERRQ(ierr); 1358 #endif 1359 #endif 1360 1361 #if (defined(PETSC_HAVE_COMPLEX) && !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX)) || defined(PETSC_USE_REAL___FLOAT128) 1362 ierr = MPI_Op_free(&MPIU_SUM);CHKERRQ(ierr); 1363 #endif 1364 1365 ierr = MPI_Type_free(&MPIU_2SCALAR);CHKERRQ(ierr); 1366 #if defined(PETSC_USE_64BIT_INDICES) || !defined(MPI_2INT) 1367 ierr = MPI_Type_free(&MPIU_2INT);CHKERRQ(ierr); 1368 #endif 1369 ierr = MPI_Op_free(&PetscMaxSum_Op);CHKERRQ(ierr); 1370 ierr = MPI_Op_free(&PetscADMax_Op);CHKERRQ(ierr); 1371 ierr = MPI_Op_free(&PetscADMin_Op);CHKERRQ(ierr); 1372 1373 /* 1374 Destroy any known inner MPI_Comm's and attributes pointing to them 1375 Note this will not destroy any new communicators the user has created. 1376 1377 If all PETSc objects were not destroyed those left over objects will have hanging references to 1378 the MPI_Comms that were freed; but that is ok because those PETSc objects will never be used again 1379 */ 1380 { 1381 PetscCommCounter *counter; 1382 PetscMPIInt flg; 1383 MPI_Comm icomm; 1384 union {MPI_Comm comm; void *ptr;} ucomm; 1385 ierr = MPI_Attr_get(PETSC_COMM_SELF,Petsc_InnerComm_keyval,&ucomm,&flg);CHKERRQ(ierr); 1386 if (flg) { 1387 icomm = ucomm.comm; 1388 ierr = MPI_Attr_get(icomm,Petsc_Counter_keyval,&counter,&flg);CHKERRQ(ierr); 1389 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_CORRUPT,"Inner MPI_Comm does not have expected tag/name counter, problem with corrupted memory"); 1390 1391 ierr = MPI_Attr_delete(PETSC_COMM_SELF,Petsc_InnerComm_keyval);CHKERRQ(ierr); 1392 ierr = MPI_Attr_delete(icomm,Petsc_Counter_keyval);CHKERRQ(ierr); 1393 ierr = MPI_Comm_free(&icomm);CHKERRQ(ierr); 1394 } 1395 ierr = MPI_Attr_get(PETSC_COMM_WORLD,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_WORLD,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_WORLD,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 } 1406 1407 ierr = MPI_Keyval_free(&Petsc_Counter_keyval);CHKERRQ(ierr); 1408 ierr = MPI_Keyval_free(&Petsc_InnerComm_keyval);CHKERRQ(ierr); 1409 ierr = MPI_Keyval_free(&Petsc_OuterComm_keyval);CHKERRQ(ierr); 1410 1411 if (PetscBeganMPI) { 1412 #if defined(PETSC_HAVE_MPI_FINALIZED) 1413 PetscMPIInt flag; 1414 ierr = MPI_Finalized(&flag);CHKERRQ(ierr); 1415 if (flag) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"MPI_Finalize() has already been called, even though MPI_Init() was called by PetscInitialize()"); 1416 #endif 1417 ierr = MPI_Finalize();CHKERRQ(ierr); 1418 } 1419 /* 1420 1421 Note: In certain cases PETSC_COMM_WORLD is never MPI_Comm_free()ed because 1422 the communicator has some outstanding requests on it. Specifically if the 1423 flag PETSC_HAVE_BROKEN_REQUEST_FREE is set (for IBM MPI implementation). See 1424 src/vec/utils/vpscat.c. Due to this the memory allocated in PetscCommDuplicate() 1425 is never freed as it should be. Thus one may obtain messages of the form 1426 [ 1] 8 bytes PetscCommDuplicate() line 645 in src/sys/mpiu.c indicating the 1427 memory was not freed. 1428 1429 */ 1430 ierr = PetscMallocClear();CHKERRQ(ierr); 1431 1432 PetscInitializeCalled = PETSC_FALSE; 1433 PetscFinalizeCalled = PETSC_TRUE; 1434 PetscFunctionReturn(ierr); 1435 } 1436 1437 #if defined(PETSC_MISSING_LAPACK_lsame_) 1438 PETSC_EXTERN int lsame_(char *a,char *b) 1439 { 1440 if (*a == *b) return 1; 1441 if (*a + 32 == *b) return 1; 1442 if (*a - 32 == *b) return 1; 1443 return 0; 1444 } 1445 #endif 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