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 /* 57 Checks the options database for initializations related to the 58 PETSc components 59 */ 60 #undef __FUNCT__ 61 #define __FUNCT__ "PetscOptionsCheckInitial_Components" 62 PetscErrorCode PetscOptionsCheckInitial_Components(void) 63 { 64 PetscBool flg1; 65 PetscErrorCode ierr; 66 67 PetscFunctionBegin; 68 ierr = PetscOptionsHasName(NULL,"-help",&flg1);CHKERRQ(ierr); 69 if (flg1) { 70 #if defined(PETSC_USE_LOG) 71 MPI_Comm comm = PETSC_COMM_WORLD; 72 ierr = (*PetscHelpPrintf)(comm,"------Additional PETSc component options--------\n");CHKERRQ(ierr); 73 ierr = (*PetscHelpPrintf)(comm," -log_summary_exclude: <vec,mat,pc.ksp,snes>\n");CHKERRQ(ierr); 74 ierr = (*PetscHelpPrintf)(comm," -info_exclude: <null,vec,mat,pc,ksp,snes,ts>\n");CHKERRQ(ierr); 75 ierr = (*PetscHelpPrintf)(comm,"-----------------------------------------------\n");CHKERRQ(ierr); 76 #endif 77 } 78 PetscFunctionReturn(0); 79 } 80 81 #undef __FUNCT__ 82 #define __FUNCT__ "PetscInitializeNoPointers" 83 /* 84 PetscInitializeNoPointers - Calls PetscInitialize() from C/C++ without the pointers to argc and args 85 86 Collective 87 88 Level: advanced 89 90 Notes: this is called only by the PETSc MATLAB and Julia interface. Even though it might start MPI it sets the flag to 91 indicate that it did NOT start MPI so that the PetscFinalize() does not end MPI, thus allowing PetscInitialize() to 92 be called multiple times from MATLAB and Julia without the problem of trying to initialize MPI more than once. 93 94 Turns off PETSc signal handling because that can interact with MATLAB's signal handling causing random crashes. 95 96 .seealso: PetscInitialize(), PetscInitializeFortran(), PetscInitializeNoArguments() 97 */ 98 PetscErrorCode PetscInitializeNoPointers(int argc,char **args,const char *filename,const char *help) 99 { 100 PetscErrorCode ierr; 101 int myargc = argc; 102 char **myargs = args; 103 104 PetscFunctionBegin; 105 ierr = PetscInitialize(&myargc,&myargs,filename,help);CHKERRQ(ierr); 106 ierr = PetscPopSignalHandler();CHKERRQ(ierr); 107 PetscBeganMPI = PETSC_FALSE; 108 PetscFunctionReturn(ierr); 109 } 110 111 #undef __FUNCT__ 112 #define __FUNCT__ "PetscGetPETSC_COMM_SELF" 113 /* 114 Used by MATLAB and Julia interface to get communicator 115 */ 116 PetscErrorCode PetscGetPETSC_COMM_SELF(MPI_Comm *comm) 117 { 118 PetscFunctionBegin; 119 *comm = PETSC_COMM_SELF; 120 PetscFunctionReturn(0); 121 } 122 123 #undef __FUNCT__ 124 #define __FUNCT__ "PetscInitializeNoArguments" 125 /*@C 126 PetscInitializeNoArguments - Calls PetscInitialize() from C/C++ without 127 the command line arguments. 128 129 Collective 130 131 Level: advanced 132 133 .seealso: PetscInitialize(), PetscInitializeFortran() 134 @*/ 135 PetscErrorCode PetscInitializeNoArguments(void) 136 { 137 PetscErrorCode ierr; 138 int argc = 0; 139 char **args = 0; 140 141 PetscFunctionBegin; 142 ierr = PetscInitialize(&argc,&args,NULL,NULL); 143 PetscFunctionReturn(ierr); 144 } 145 146 #undef __FUNCT__ 147 #define __FUNCT__ "PetscInitialized" 148 /*@ 149 PetscInitialized - Determine whether PETSc is initialized. 150 151 Level: beginner 152 153 .seealso: PetscInitialize(), PetscInitializeNoArguments(), PetscInitializeFortran() 154 @*/ 155 PetscErrorCode PetscInitialized(PetscBool *isInitialized) 156 { 157 *isInitialized = PetscInitializeCalled; 158 return 0; 159 } 160 161 #undef __FUNCT__ 162 #define __FUNCT__ "PetscFinalized" 163 /*@ 164 PetscFinalized - Determine whether PetscFinalize() has been called yet 165 166 Level: developer 167 168 .seealso: PetscInitialize(), PetscInitializeNoArguments(), PetscInitializeFortran() 169 @*/ 170 PetscErrorCode PetscFinalized(PetscBool *isFinalized) 171 { 172 *isFinalized = PetscFinalizeCalled; 173 return 0; 174 } 175 176 extern PetscErrorCode PetscOptionsCheckInitial_Private(void); 177 178 /* 179 This function is the MPI reduction operation used to compute the sum of the 180 first half of the datatype and the max of the second half. 181 */ 182 MPI_Op PetscMaxSum_Op = 0; 183 184 #undef __FUNCT__ 185 #define __FUNCT__ "PetscMaxSum_Local" 186 PETSC_EXTERN void MPIAPI PetscMaxSum_Local(void *in,void *out,int *cnt,MPI_Datatype *datatype) 187 { 188 PetscInt *xin = (PetscInt*)in,*xout = (PetscInt*)out,i,count = *cnt; 189 190 PetscFunctionBegin; 191 if (*datatype != MPIU_2INT) { 192 (*PetscErrorPrintf)("Can only handle MPIU_2INT data types"); 193 MPI_Abort(MPI_COMM_WORLD,1); 194 } 195 196 for (i=0; i<count; i++) { 197 xout[2*i] = PetscMax(xout[2*i],xin[2*i]); 198 xout[2*i+1] += xin[2*i+1]; 199 } 200 PetscFunctionReturnVoid(); 201 } 202 203 /* 204 Returns the max of the first entry owned by this processor and the 205 sum of the second entry. 206 207 The reason nprocs[2*i] contains lengths nprocs[2*i+1] contains flag of 1 if length is nonzero 208 is so that the PetscMaxSum_Op() can set TWO values, if we passed in only nprocs[i] with lengths 209 there would be no place to store the both needed results. 210 */ 211 #undef __FUNCT__ 212 #define __FUNCT__ "PetscMaxSum" 213 PetscErrorCode PetscMaxSum(MPI_Comm comm,const PetscInt nprocs[],PetscInt *max,PetscInt *sum) 214 { 215 PetscMPIInt size,rank; 216 struct {PetscInt max,sum;} *work; 217 PetscErrorCode ierr; 218 219 PetscFunctionBegin; 220 ierr = MPI_Comm_size(comm,&size);CHKERRQ(ierr); 221 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 222 ierr = PetscMalloc(size*sizeof(*work),&work);CHKERRQ(ierr); 223 ierr = MPI_Allreduce((void*)nprocs,work,size,MPIU_2INT,PetscMaxSum_Op,comm);CHKERRQ(ierr); 224 *max = work[rank].max; 225 *sum = work[rank].sum; 226 ierr = PetscFree(work);CHKERRQ(ierr); 227 PetscFunctionReturn(0); 228 } 229 230 /* ----------------------------------------------------------------------------*/ 231 MPI_Op PetscADMax_Op = 0; 232 233 #undef __FUNCT__ 234 #define __FUNCT__ "PetscADMax_Local" 235 PETSC_EXTERN void MPIAPI PetscADMax_Local(void *in,void *out,PetscMPIInt *cnt,MPI_Datatype *datatype) 236 { 237 PetscScalar *xin = (PetscScalar*)in,*xout = (PetscScalar*)out; 238 PetscInt i,count = *cnt; 239 240 PetscFunctionBegin; 241 if (*datatype != MPIU_2SCALAR) { 242 (*PetscErrorPrintf)("Can only handle MPIU_2SCALAR data (i.e. double or complex) types"); 243 MPI_Abort(MPI_COMM_WORLD,1); 244 } 245 246 for (i=0; i<count; i++) { 247 if (PetscRealPart(xout[2*i]) < PetscRealPart(xin[2*i])) { 248 xout[2*i] = xin[2*i]; 249 xout[2*i+1] = xin[2*i+1]; 250 } 251 } 252 PetscFunctionReturnVoid(); 253 } 254 255 MPI_Op PetscADMin_Op = 0; 256 257 #undef __FUNCT__ 258 #define __FUNCT__ "PetscADMin_Local" 259 PETSC_EXTERN void MPIAPI PetscADMin_Local(void *in,void *out,PetscMPIInt *cnt,MPI_Datatype *datatype) 260 { 261 PetscScalar *xin = (PetscScalar*)in,*xout = (PetscScalar*)out; 262 PetscInt i,count = *cnt; 263 264 PetscFunctionBegin; 265 if (*datatype != MPIU_2SCALAR) { 266 (*PetscErrorPrintf)("Can only handle MPIU_2SCALAR data (i.e. double or complex) types"); 267 MPI_Abort(MPI_COMM_WORLD,1); 268 } 269 270 for (i=0; i<count; i++) { 271 if (PetscRealPart(xout[2*i]) > PetscRealPart(xin[2*i])) { 272 xout[2*i] = xin[2*i]; 273 xout[2*i+1] = xin[2*i+1]; 274 } 275 } 276 PetscFunctionReturnVoid(); 277 } 278 /* ---------------------------------------------------------------------------------------*/ 279 280 #if (defined(PETSC_HAVE_COMPLEX) && !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX)) || defined(PETSC_USE_REAL___FLOAT128) 281 MPI_Op MPIU_SUM = 0; 282 283 #undef __FUNCT__ 284 #define __FUNCT__ "PetscSum_Local" 285 PETSC_EXTERN void PetscSum_Local(void *in,void *out,PetscMPIInt *cnt,MPI_Datatype *datatype) 286 { 287 PetscInt i,count = *cnt; 288 289 PetscFunctionBegin; 290 if (*datatype == MPIU_REAL) { 291 PetscReal *xin = (PetscReal*)in,*xout = (PetscReal*)out; 292 for (i=0; i<count; i++) xout[i] += xin[i]; 293 } 294 #if defined(PETSC_HAVE_COMPLEX) 295 else if (*datatype == MPIU_COMPLEX) { 296 PetscComplex *xin = (PetscComplex*)in,*xout = (PetscComplex*)out; 297 for (i=0; i<count; i++) xout[i] += xin[i]; 298 } 299 #endif 300 else { 301 (*PetscErrorPrintf)("Can only handle MPIU_REAL or MPIU_COMPLEX data types"); 302 MPI_Abort(MPI_COMM_WORLD,1); 303 } 304 PetscFunctionReturnVoid(); 305 } 306 #endif 307 308 #if defined(PETSC_USE_REAL___FLOAT128) 309 MPI_Op MPIU_MAX = 0; 310 MPI_Op MPIU_MIN = 0; 311 312 #undef __FUNCT__ 313 #define __FUNCT__ "PetscMax_Local" 314 PETSC_EXTERN void PetscMax_Local(void *in,void *out,PetscMPIInt *cnt,MPI_Datatype *datatype) 315 { 316 PetscInt i,count = *cnt; 317 318 PetscFunctionBegin; 319 if (*datatype == MPIU_REAL) { 320 PetscReal *xin = (PetscReal*)in,*xout = (PetscReal*)out; 321 for (i=0; i<count; i++) xout[i] = PetscMax(xout[i],xin[i]); 322 } 323 #if defined(PETSC_HAVE_COMPLEX) 324 else if (*datatype == MPIU_COMPLEX) { 325 PetscComplex *xin = (PetscComplex*)in,*xout = (PetscComplex*)out; 326 for (i=0; i<count; i++) { 327 xout[i] = PetscRealPartComplex(xout[i])<PetscRealPartComplex(xin[i]) ? xin[i] : xout[i]; 328 } 329 } 330 #endif 331 else { 332 (*PetscErrorPrintf)("Can only handle MPIU_REAL or MPIU_COMPLEX data types"); 333 MPI_Abort(MPI_COMM_WORLD,1); 334 } 335 PetscFunctionReturnVoid(); 336 } 337 338 #undef __FUNCT__ 339 #define __FUNCT__ "PetscMin_Local" 340 PETSC_EXTERN void PetscMin_Local(void *in,void *out,PetscMPIInt *cnt,MPI_Datatype *datatype) 341 { 342 PetscInt i,count = *cnt; 343 344 PetscFunctionBegin; 345 if (*datatype == MPIU_REAL) { 346 PetscReal *xin = (PetscReal*)in,*xout = (PetscReal*)out; 347 for (i=0; i<count; i++) xout[i] = PetscMin(xout[i],xin[i]); 348 } 349 #if defined(PETSC_HAVE_COMPLEX) 350 else if (*datatype == MPIU_COMPLEX) { 351 PetscComplex *xin = (PetscComplex*)in,*xout = (PetscComplex*)out; 352 for (i=0; i<count; i++) { 353 xout[i] = PetscRealPartComplex(xout[i])>PetscRealPartComplex(xin[i]) ? xin[i] : xout[i]; 354 } 355 } 356 #endif 357 else { 358 (*PetscErrorPrintf)("Can only handle MPIU_REAL or MPIU_SCALAR data (i.e. double or complex) types"); 359 MPI_Abort(MPI_COMM_WORLD,1); 360 } 361 PetscFunctionReturnVoid(); 362 } 363 #endif 364 365 #undef __FUNCT__ 366 #define __FUNCT__ "Petsc_DelCounter" 367 /* 368 Private routine to delete internal tag/name counter storage when a communicator is freed. 369 370 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. 371 372 Note: this is declared extern "C" because it is passed to MPI_Keyval_create() 373 374 */ 375 PETSC_EXTERN PetscMPIInt MPIAPI Petsc_DelCounter(MPI_Comm comm,PetscMPIInt keyval,void *count_val,void *extra_state) 376 { 377 PetscErrorCode ierr; 378 379 PetscFunctionBegin; 380 ierr = PetscInfo1(0,"Deleting counter data in an MPI_Comm %ld\n",(long)comm);if (ierr) PetscFunctionReturn((PetscMPIInt)ierr); 381 ierr = PetscFree(count_val);if (ierr) PetscFunctionReturn((PetscMPIInt)ierr); 382 PetscFunctionReturn(MPI_SUCCESS); 383 } 384 385 #undef __FUNCT__ 386 #define __FUNCT__ "Petsc_DelComm_Outer" 387 /* 388 This is invoked on the outer comm as a result of either PetscCommDestroy() (via MPI_Attr_delete) or when the user 389 calls MPI_Comm_free(). 390 391 This is the only entry point for breaking the links between inner and outer comms. 392 393 This is called by MPI, not by users. This is called when MPI_Comm_free() is called on the communicator. 394 395 Note: this is declared extern "C" because it is passed to MPI_Keyval_create() 396 397 */ 398 PETSC_EXTERN PetscMPIInt MPIAPI Petsc_DelComm_Outer(MPI_Comm comm,PetscMPIInt keyval,void *attr_val,void *extra_state) 399 { 400 PetscErrorCode ierr; 401 PetscMPIInt flg; 402 union {MPI_Comm comm; void *ptr;} icomm,ocomm; 403 404 PetscFunctionBegin; 405 if (keyval != Petsc_InnerComm_keyval) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_CORRUPT,"Unexpected keyval"); 406 icomm.ptr = attr_val; 407 408 ierr = MPI_Attr_get(icomm.comm,Petsc_OuterComm_keyval,&ocomm,&flg);CHKERRQ(ierr); 409 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_CORRUPT,"Inner MPI_Comm does not have expected reference to outer comm"); 410 if (ocomm.comm != comm) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_CORRUPT,"Inner MPI_Comm has reference to non-matching outer comm"); 411 ierr = MPI_Attr_delete(icomm.comm,Petsc_OuterComm_keyval);CHKERRQ(ierr); /* Calls Petsc_DelComm_Inner */ 412 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); 413 PetscFunctionReturn(MPI_SUCCESS); 414 } 415 416 #undef __FUNCT__ 417 #define __FUNCT__ "Petsc_DelComm_Inner" 418 /* 419 * This is invoked on the inner comm when Petsc_DelComm_Outer calls MPI_Attr_delete. It should not be reached any other way. 420 */ 421 PETSC_EXTERN PetscMPIInt MPIAPI Petsc_DelComm_Inner(MPI_Comm comm,PetscMPIInt keyval,void *attr_val,void *extra_state) 422 { 423 PetscErrorCode ierr; 424 425 PetscFunctionBegin; 426 ierr = PetscInfo1(0,"Removing reference to PETSc communicator embedded in a user MPI_Comm %ld\n",(long)comm);if (ierr) PetscFunctionReturn((PetscMPIInt)ierr); 427 PetscFunctionReturn(MPI_SUCCESS); 428 } 429 430 #if defined(PETSC_USE_PETSC_MPI_EXTERNAL32) 431 #if !defined(PETSC_WORDS_BIGENDIAN) 432 PETSC_EXTERN PetscMPIInt PetscDataRep_extent_fn(MPI_Datatype,MPI_Aint*,void*); 433 PETSC_EXTERN PetscMPIInt PetscDataRep_read_conv_fn(void*, MPI_Datatype,PetscMPIInt,void*,MPI_Offset,void*); 434 PETSC_EXTERN PetscMPIInt PetscDataRep_write_conv_fn(void*, MPI_Datatype,PetscMPIInt,void*,MPI_Offset,void*); 435 #endif 436 #endif 437 438 int PetscGlobalArgc = 0; 439 char **PetscGlobalArgs = 0; 440 PetscSegBuffer PetscCitationsList; 441 442 #undef __FUNCT__ 443 #define __FUNCT__ "PetscCitationsInitialize" 444 PetscErrorCode PetscCitationsInitialize() 445 { 446 PetscErrorCode ierr; 447 448 PetscFunctionBegin; 449 ierr = PetscSegBufferCreate(1,10000,&PetscCitationsList);CHKERRQ(ierr); 450 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); 451 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); 452 PetscFunctionReturn(0); 453 } 454 455 #undef __FUNCT__ 456 #define __FUNCT__ "PetscGetArgs" 457 /*@C 458 PetscGetArgs - Allows you to access the raw command line arguments anywhere 459 after PetscInitialize() is called but before PetscFinalize(). 460 461 Not Collective 462 463 Output Parameters: 464 + argc - count of number of command line arguments 465 - args - the command line arguments 466 467 Level: intermediate 468 469 Notes: 470 This is usually used to pass the command line arguments into other libraries 471 that are called internally deep in PETSc or the application. 472 473 The first argument contains the program name as is normal for C arguments. 474 475 Concepts: command line arguments 476 477 .seealso: PetscFinalize(), PetscInitializeFortran(), PetscGetArguments() 478 479 @*/ 480 PetscErrorCode PetscGetArgs(int *argc,char ***args) 481 { 482 PetscFunctionBegin; 483 if (!PetscInitializeCalled && PetscFinalizeCalled) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ORDER,"You must call after PetscInitialize() but before PetscFinalize()"); 484 *argc = PetscGlobalArgc; 485 *args = PetscGlobalArgs; 486 PetscFunctionReturn(0); 487 } 488 489 #undef __FUNCT__ 490 #define __FUNCT__ "PetscGetArguments" 491 /*@C 492 PetscGetArguments - Allows you to access the command line arguments anywhere 493 after PetscInitialize() is called but before PetscFinalize(). 494 495 Not Collective 496 497 Output Parameters: 498 . args - the command line arguments 499 500 Level: intermediate 501 502 Notes: 503 This does NOT start with the program name and IS null terminated (final arg is void) 504 505 Concepts: command line arguments 506 507 .seealso: PetscFinalize(), PetscInitializeFortran(), PetscGetArgs(), PetscFreeArguments() 508 509 @*/ 510 PetscErrorCode PetscGetArguments(char ***args) 511 { 512 PetscInt i,argc = PetscGlobalArgc; 513 PetscErrorCode ierr; 514 515 PetscFunctionBegin; 516 if (!PetscInitializeCalled && PetscFinalizeCalled) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ORDER,"You must call after PetscInitialize() but before PetscFinalize()"); 517 if (!argc) {*args = 0; PetscFunctionReturn(0);} 518 ierr = PetscMalloc(argc*sizeof(char*),args);CHKERRQ(ierr); 519 for (i=0; i<argc-1; i++) { 520 ierr = PetscStrallocpy(PetscGlobalArgs[i+1],&(*args)[i]);CHKERRQ(ierr); 521 } 522 (*args)[argc-1] = 0; 523 PetscFunctionReturn(0); 524 } 525 526 #undef __FUNCT__ 527 #define __FUNCT__ "PetscFreeArguments" 528 /*@C 529 PetscFreeArguments - Frees the memory obtained with PetscGetArguments() 530 531 Not Collective 532 533 Output Parameters: 534 . args - the command line arguments 535 536 Level: intermediate 537 538 Concepts: command line arguments 539 540 .seealso: PetscFinalize(), PetscInitializeFortran(), PetscGetArgs(), PetscGetArguments() 541 542 @*/ 543 PetscErrorCode PetscFreeArguments(char **args) 544 { 545 PetscInt i = 0; 546 PetscErrorCode ierr; 547 548 PetscFunctionBegin; 549 if (!args) PetscFunctionReturn(0); 550 while (args[i]) { 551 ierr = PetscFree(args[i]);CHKERRQ(ierr); 552 i++; 553 } 554 ierr = PetscFree(args);CHKERRQ(ierr); 555 PetscFunctionReturn(0); 556 } 557 558 #if defined(PETSC_HAVE_SAWS) 559 #undef __FUNCT__ 560 #define __FUNCT__ "PetscInitializeSAWs" 561 PetscErrorCode PetscInitializeSAWs(const char help[]) 562 { 563 if (!PetscGlobalRank) { 564 char cert[PETSC_MAX_PATH_LEN],root[PETSC_MAX_PATH_LEN],*intro,programname[64],*appline; 565 int port; 566 PetscBool flg,rootlocal = PETSC_FALSE,flg2; 567 size_t applinelen,introlen; 568 PetscErrorCode ierr; 569 570 ierr = PetscOptionsHasName(NULL,"-saws_log",&flg);CHKERRQ(ierr); 571 if (flg) { 572 char sawslog[PETSC_MAX_PATH_LEN]; 573 574 ierr = PetscOptionsGetString(NULL,"-saws_log",sawslog,PETSC_MAX_PATH_LEN,NULL);CHKERRQ(ierr); 575 if (sawslog[0]) { 576 PetscStackCallSAWs(SAWs_Set_Use_Logfile,(sawslog)); 577 } else { 578 PetscStackCallSAWs(SAWs_Set_Use_Logfile,(NULL)); 579 } 580 } 581 ierr = PetscOptionsGetString(NULL,"-saws_https",cert,PETSC_MAX_PATH_LEN,&flg);CHKERRQ(ierr); 582 if (flg) { 583 PetscStackCallSAWs(SAWs_Set_Use_HTTPS,(cert)); 584 } 585 ierr = PetscOptionsGetInt(NULL,"-saws_port",&port,&flg);CHKERRQ(ierr); 586 if (flg) { 587 PetscStackCallSAWs(SAWs_Set_Port,(port)); 588 } 589 ierr = PetscOptionsGetString(NULL,"-saws_root",root,PETSC_MAX_PATH_LEN,&flg);CHKERRQ(ierr); 590 if (flg) { 591 PetscStackCallSAWs(SAWs_Set_Document_Root,(root));CHKERRQ(ierr); 592 ierr = PetscStrcmp(root,".",&rootlocal);CHKERRQ(ierr); 593 } 594 ierr = PetscOptionsHasName(NULL,"-saws_local",&flg2);CHKERRQ(ierr); 595 if (flg2) { 596 char jsdir[PETSC_MAX_PATH_LEN]; 597 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"-saws_local option requires -saws_root option"); 598 ierr = PetscSNPrintf(jsdir,PETSC_MAX_PATH_LEN,"%s/js",root);CHKERRQ(ierr); 599 ierr = PetscTestDirectory(jsdir,'r',&flg);CHKERRQ(ierr); 600 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_FILE_READ,"-saws_local option requires js directory in root directory"); 601 PetscStackCallSAWs(SAWs_Set_Local_JSHeader,());CHKERRQ(ierr); 602 } 603 ierr = PetscGetProgramName(programname,64);CHKERRQ(ierr); 604 ierr = PetscStrlen(help,&applinelen);CHKERRQ(ierr); 605 introlen = 4096 + applinelen; 606 applinelen += 256; 607 ierr = PetscMalloc(applinelen,&appline);CHKERRQ(ierr); 608 ierr = PetscMalloc(introlen,&intro);CHKERRQ(ierr); 609 610 if (rootlocal) { 611 ierr = PetscSNPrintf(appline,applinelen,"%s.c.html",programname);CHKERRQ(ierr); 612 ierr = PetscTestFile(appline,'r',&rootlocal);CHKERRQ(ierr); 613 } 614 if (rootlocal && help) { 615 ierr = PetscSNPrintf(appline,applinelen,"<center> Running <a href=\"%s.c.html\">%s</a></center><br><pre>%s</pre><br>\n",programname,programname,help); 616 } else if (help) { 617 ierr = PetscSNPrintf(appline,applinelen,"<center>Running %s </center><br><pre>%s</pre><br>\n",programname,help); 618 } else { 619 ierr = PetscSNPrintf(appline,applinelen,"<center> Running %s</center><br>\n",programname); 620 } 621 622 ierr = PetscSNPrintf(intro,introlen,"<body>\n" 623 "<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" 624 "<center>This is the default PETSc application dashboard, from it you can access any published PETSc objects or logging data</center><br>\n" 625 "%s",appline); 626 PetscStackCallSAWs(SAWs_Set_Body,("index.html",0,intro)); 627 ierr = PetscFree(intro);CHKERRQ(ierr); 628 ierr = PetscFree(appline);CHKERRQ(ierr); 629 PetscStackCallSAWs(SAWs_Initialize,()); 630 ierr = PetscCitationsRegister("@TechReport{ saws," 631 "Author = {Matt Otten and Jed Brown and Barry Smith}," 632 "Title = {Scientific Application Web Server (SAWs) Users Manual}," 633 "Institution = {Argonne National Laboratory}," 634 "Year = 2013}",NULL);CHKERRQ(ierr); 635 } 636 PetscFunctionReturn(0); 637 } 638 #endif 639 640 #undef __FUNCT__ 641 #define __FUNCT__ "PetscInitialize" 642 /*@C 643 PetscInitialize - Initializes the PETSc database and MPI. 644 PetscInitialize() calls MPI_Init() if that has yet to be called, 645 so this routine should always be called near the beginning of 646 your program -- usually the very first line! 647 648 Collective on MPI_COMM_WORLD or PETSC_COMM_WORLD if it has been set 649 650 Input Parameters: 651 + argc - count of number of command line arguments 652 . args - the command line arguments 653 . file - [optional] PETSc database file, also checks ~username/.petscrc and .petscrc use NULL to not check for 654 code specific file. Use -skip_petscrc in the code specific file to skip the .petscrc files 655 - help - [optional] Help message to print, use NULL for no message 656 657 If you wish PETSc code to run ONLY on a subcommunicator of MPI_COMM_WORLD, create that 658 communicator first and assign it to PETSC_COMM_WORLD BEFORE calling PetscInitialize(). Thus if you are running a 659 four process job and two processes will run PETSc and have PetscInitialize() and PetscFinalize() and two process will not, 660 then do this. If ALL processes in the job are using PetscInitialize() and PetscFinalize() then you don't need to do this, even 661 if different subcommunicators of the job are doing different things with PETSc. 662 663 Options Database Keys: 664 + -start_in_debugger [noxterm,dbx,xdb,gdb,...] - Starts program in debugger 665 . -on_error_attach_debugger [noxterm,dbx,xdb,gdb,...] - Starts debugger when error detected 666 . -on_error_emacs <machinename> causes emacsclient to jump to error file 667 . -on_error_abort calls abort() when error detected (no traceback) 668 . -on_error_mpiabort calls MPI_abort() when error detected 669 . -error_output_stderr prints error messages to stderr instead of the default stdout 670 . -error_output_none does not print the error messages (but handles errors in the same way as if this was not called) 671 . -debugger_nodes [node1,node2,...] - Indicates nodes to start in debugger 672 . -debugger_pause [sleeptime] (in seconds) - Pauses debugger 673 . -stop_for_debugger - Print message on how to attach debugger manually to 674 process and wait (-debugger_pause) seconds for attachment 675 . -malloc - Indicates use of PETSc error-checking malloc (on by default for debug version of libraries) 676 . -malloc no - Indicates not to use error-checking malloc 677 . -malloc_debug - check for memory corruption at EVERY malloc or free 678 . -malloc_dump - prints a list of all unfreed memory at the end of the run 679 . -malloc_test - like -malloc_dump -malloc_debug, but only active for debugging builds 680 . -fp_trap - Stops on floating point exceptions (Note that on the 681 IBM RS6000 this slows code by at least a factor of 10.) 682 . -no_signal_handler - Indicates not to trap error signals 683 . -shared_tmp - indicates /tmp directory is shared by all processors 684 . -not_shared_tmp - each processor has own /tmp 685 . -tmp - alternative name of /tmp directory 686 . -get_total_flops - returns total flops done by all processors 687 . -memory_info - Print memory usage at end of run 688 - -server <port> - start PETSc webserver (default port is 8080) 689 690 Options Database Keys for Profiling: 691 See the <a href="../../docs/manual.pdf#nameddest=ch_profiling">profiling chapter of the users manual</a> for details. 692 + -info <optional filename> - Prints verbose information to the screen 693 . -info_exclude <null,vec,mat,pc,ksp,snes,ts> - Excludes some of the verbose messages 694 . -log_sync - Log the synchronization in scatters, inner products and norms 695 . -log_trace [filename] - Print traces of all PETSc calls to the screen (useful to determine where a program 696 hangs without running in the debugger). See PetscLogTraceBegin(). 697 . -log_summary [filename] - Prints summary of flop and timing information to screen. If the filename is specified the 698 summary is written to the file. See PetscLogView(). 699 . -log_summary_python [filename] - Prints data on of flop and timing usage to a file or screen. See PetscLogPrintSViewPython(). 700 . -log_all [filename] - Logs extensive profiling information See PetscLogDump(). 701 . -log [filename] - Logs basic profiline information See PetscLogDump(). 702 - -log_mpe [filename] - Creates a logfile viewable by the utility Jumpshot (in MPICH distribution) 703 704 Only one of -log_trace, -log_summary, -log_all, -log, or -log_mpe may be used at a time 705 706 Environmental Variables: 707 + PETSC_TMP - alternative tmp directory 708 . PETSC_SHARED_TMP - tmp is shared by all processes 709 . PETSC_NOT_SHARED_TMP - each process has its own private tmp 710 . PETSC_VIEWER_SOCKET_PORT - socket number to use for socket viewer 711 - PETSC_VIEWER_SOCKET_MACHINE - machine to use for socket viewer to connect to 712 713 714 Level: beginner 715 716 Notes: 717 If for some reason you must call MPI_Init() separately, call 718 it before PetscInitialize(). 719 720 Fortran Version: 721 In Fortran this routine has the format 722 $ call PetscInitialize(file,ierr) 723 724 + ierr - error return code 725 - file - [optional] PETSc database file, also checks ~username/.petscrc and .petscrc use NULL_CHARACTER to not check for 726 code specific file. Use -skip_petscrc in the code specific file to skip the .petscrc files 727 728 Important Fortran Note: 729 In Fortran, you MUST use NULL_CHARACTER to indicate a 730 null character string; you CANNOT just use NULL as 731 in the C version. See the <a href="../../docs/manual.pdf">users manual</a> for details. 732 733 If your main program is C but you call Fortran code that also uses PETSc you need to call PetscInitializeFortran() soon after 734 calling PetscInitialize(). 735 736 Concepts: initializing PETSc 737 738 .seealso: PetscFinalize(), PetscInitializeFortran(), PetscGetArgs(), PetscInitializeNoArguments() 739 740 @*/ 741 PetscErrorCode PetscInitialize(int *argc,char ***args,const char file[],const char help[]) 742 { 743 PetscErrorCode ierr; 744 PetscMPIInt flag, size; 745 PetscInt nodesize; 746 PetscBool flg; 747 char hostname[256]; 748 749 PetscFunctionBegin; 750 if (PetscInitializeCalled) PetscFunctionReturn(0); 751 752 /* these must be initialized in a routine, not as a constant declaration*/ 753 PETSC_STDOUT = stdout; 754 PETSC_STDERR = stderr; 755 756 ierr = PetscOptionsCreate();CHKERRQ(ierr); 757 758 /* 759 We initialize the program name here (before MPI_Init()) because MPICH has a bug in 760 it that it sets args[0] on all processors to be args[0] on the first processor. 761 */ 762 if (argc && *argc) { 763 ierr = PetscSetProgramName(**args);CHKERRQ(ierr); 764 } else { 765 ierr = PetscSetProgramName("Unknown Name");CHKERRQ(ierr); 766 } 767 768 ierr = MPI_Initialized(&flag);CHKERRQ(ierr); 769 if (!flag) { 770 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"); 771 #if defined(PETSC_HAVE_MPI_INIT_THREAD) 772 { 773 PetscMPIInt provided; 774 ierr = MPI_Init_thread(argc,args,MPI_THREAD_FUNNELED,&provided);CHKERRQ(ierr); 775 } 776 #else 777 ierr = MPI_Init(argc,args);CHKERRQ(ierr); 778 #endif 779 PetscBeganMPI = PETSC_TRUE; 780 } 781 if (argc && args) { 782 PetscGlobalArgc = *argc; 783 PetscGlobalArgs = *args; 784 } 785 PetscFinalizeCalled = PETSC_FALSE; 786 787 if (PETSC_COMM_WORLD == MPI_COMM_NULL) PETSC_COMM_WORLD = MPI_COMM_WORLD; 788 ierr = MPI_Comm_set_errhandler(PETSC_COMM_WORLD,MPI_ERRORS_RETURN);CHKERRQ(ierr); 789 790 /* Done after init due to a bug in MPICH-GM? */ 791 ierr = PetscErrorPrintfInitialize();CHKERRQ(ierr); 792 793 ierr = MPI_Comm_rank(MPI_COMM_WORLD,&PetscGlobalRank);CHKERRQ(ierr); 794 ierr = MPI_Comm_size(MPI_COMM_WORLD,&PetscGlobalSize);CHKERRQ(ierr); 795 796 MPIU_BOOL = MPI_INT; 797 MPIU_ENUM = MPI_INT; 798 799 /* 800 Initialized the global complex variable; this is because with 801 shared libraries the constructors for global variables 802 are not called; at least on IRIX. 803 */ 804 #if defined(PETSC_HAVE_COMPLEX) 805 { 806 #if defined(PETSC_CLANGUAGE_CXX) 807 PetscComplex ic(0.0,1.0); 808 PETSC_i = ic; 809 #elif defined(PETSC_CLANGUAGE_C) 810 PETSC_i = _Complex_I; 811 #endif 812 } 813 814 #if !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX) 815 ierr = MPI_Type_contiguous(2,MPI_DOUBLE,&MPIU_C_DOUBLE_COMPLEX);CHKERRQ(ierr); 816 ierr = MPI_Type_commit(&MPIU_C_DOUBLE_COMPLEX);CHKERRQ(ierr); 817 ierr = MPI_Type_contiguous(2,MPI_FLOAT,&MPIU_C_COMPLEX);CHKERRQ(ierr); 818 ierr = MPI_Type_commit(&MPIU_C_COMPLEX);CHKERRQ(ierr); 819 #endif 820 #endif /* PETSC_HAVE_COMPLEX */ 821 822 /* 823 Create the PETSc MPI reduction operator that sums of the first 824 half of the entries and maxes the second half. 825 */ 826 ierr = MPI_Op_create(PetscMaxSum_Local,1,&PetscMaxSum_Op);CHKERRQ(ierr); 827 828 #if defined(PETSC_USE_REAL___FLOAT128) 829 ierr = MPI_Type_contiguous(2,MPI_DOUBLE,&MPIU___FLOAT128);CHKERRQ(ierr); 830 ierr = MPI_Type_commit(&MPIU___FLOAT128);CHKERRQ(ierr); 831 #if defined(PETSC_HAVE_COMPLEX) 832 ierr = MPI_Type_contiguous(4,MPI_DOUBLE,&MPIU___COMPLEX128);CHKERRQ(ierr); 833 ierr = MPI_Type_commit(&MPIU___COMPLEX128);CHKERRQ(ierr); 834 #endif 835 ierr = MPI_Op_create(PetscMax_Local,1,&MPIU_MAX);CHKERRQ(ierr); 836 ierr = MPI_Op_create(PetscMin_Local,1,&MPIU_MIN);CHKERRQ(ierr); 837 #endif 838 839 #if (defined(PETSC_HAVE_COMPLEX) && !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX)) || defined(PETSC_USE_REAL___FLOAT128) 840 ierr = MPI_Op_create(PetscSum_Local,1,&MPIU_SUM);CHKERRQ(ierr); 841 #endif 842 843 ierr = MPI_Type_contiguous(2,MPIU_SCALAR,&MPIU_2SCALAR);CHKERRQ(ierr); 844 ierr = MPI_Type_commit(&MPIU_2SCALAR);CHKERRQ(ierr); 845 ierr = MPI_Op_create(PetscADMax_Local,1,&PetscADMax_Op);CHKERRQ(ierr); 846 ierr = MPI_Op_create(PetscADMin_Local,1,&PetscADMin_Op);CHKERRQ(ierr); 847 848 #if defined(PETSC_USE_64BIT_INDICES) || !defined(MPI_2INT) 849 ierr = MPI_Type_contiguous(2,MPIU_INT,&MPIU_2INT);CHKERRQ(ierr); 850 ierr = MPI_Type_commit(&MPIU_2INT);CHKERRQ(ierr); 851 #endif 852 853 854 /* 855 Attributes to be set on PETSc communicators 856 */ 857 ierr = MPI_Keyval_create(MPI_NULL_COPY_FN,Petsc_DelCounter,&Petsc_Counter_keyval,(void*)0);CHKERRQ(ierr); 858 ierr = MPI_Keyval_create(MPI_NULL_COPY_FN,Petsc_DelComm_Outer,&Petsc_InnerComm_keyval,(void*)0);CHKERRQ(ierr); 859 ierr = MPI_Keyval_create(MPI_NULL_COPY_FN,Petsc_DelComm_Inner,&Petsc_OuterComm_keyval,(void*)0);CHKERRQ(ierr); 860 861 /* 862 Build the options database 863 */ 864 ierr = PetscOptionsInsert(argc,args,file);CHKERRQ(ierr); 865 866 867 /* 868 Print main application help message 869 */ 870 ierr = PetscOptionsHasName(NULL,"-help",&flg);CHKERRQ(ierr); 871 if (help && flg) { 872 ierr = PetscPrintf(PETSC_COMM_WORLD,help);CHKERRQ(ierr); 873 } 874 ierr = PetscOptionsCheckInitial_Private();CHKERRQ(ierr); 875 876 ierr = PetscCitationsInitialize();CHKERRQ(ierr); 877 878 #if defined(PETSC_HAVE_SAWS) 879 ierr = PetscInitializeSAWs(help);CHKERRQ(ierr); 880 #endif 881 882 /* SHOULD PUT IN GUARDS: Make sure logging is initialized, even if we do not print it out */ 883 #if defined(PETSC_USE_LOG) 884 ierr = PetscLogBegin_Private();CHKERRQ(ierr); 885 #endif 886 887 /* 888 Load the dynamic libraries (on machines that support them), this registers all 889 the solvers etc. (On non-dynamic machines this initializes the PetscDraw and PetscViewer classes) 890 */ 891 ierr = PetscInitialize_DynamicLibraries();CHKERRQ(ierr); 892 893 ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr); 894 ierr = PetscInfo1(0,"PETSc successfully started: number of processors = %d\n",size);CHKERRQ(ierr); 895 ierr = PetscGetHostName(hostname,256);CHKERRQ(ierr); 896 ierr = PetscInfo1(0,"Running on machine: %s\n",hostname);CHKERRQ(ierr); 897 898 ierr = PetscOptionsCheckInitial_Components();CHKERRQ(ierr); 899 /* Check the options database for options related to the options database itself */ 900 ierr = PetscOptionsSetFromOptions();CHKERRQ(ierr); 901 902 #if defined(PETSC_USE_PETSC_MPI_EXTERNAL32) 903 /* 904 Tell MPI about our own data representation converter, this would/should be used if extern32 is not supported by the MPI 905 906 Currently not used because it is not supported by MPICH. 907 */ 908 #if !defined(PETSC_WORDS_BIGENDIAN) 909 ierr = MPI_Register_datarep((char*)"petsc",PetscDataRep_read_conv_fn,PetscDataRep_write_conv_fn,PetscDataRep_extent_fn,NULL);CHKERRQ(ierr); 910 #endif 911 #endif 912 913 ierr = PetscOptionsGetInt(NULL,"-hmpi_spawn_size",&nodesize,&flg);CHKERRQ(ierr); 914 if (flg) { 915 #if defined(PETSC_HAVE_MPI_COMM_SPAWN) 916 ierr = PetscHMPISpawn((PetscMPIInt) nodesize);CHKERRQ(ierr); /* worker nodes never return from here; they go directly to PetscEnd() */ 917 #else 918 SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"PETSc built without MPI 2 (MPI_Comm_spawn) support, use -hmpi_merge_size instead"); 919 #endif 920 } else { 921 ierr = PetscOptionsGetInt(NULL,"-hmpi_merge_size",&nodesize,&flg);CHKERRQ(ierr); 922 if (flg) { 923 ierr = PetscHMPIMerge((PetscMPIInt) nodesize,NULL,NULL);CHKERRQ(ierr); 924 if (PetscHMPIWorker) { /* if worker then never enter user code */ 925 PetscInitializeCalled = PETSC_TRUE; 926 PetscEnd(); 927 } 928 } 929 } 930 931 #if defined(PETSC_HAVE_CUDA) 932 { 933 PetscMPIInt p; 934 for (p = 0; p < PetscGlobalSize; ++p) { 935 if (p == PetscGlobalRank) cublasInit(); 936 ierr = MPI_Barrier(PETSC_COMM_WORLD);CHKERRQ(ierr); 937 } 938 } 939 #endif 940 941 ierr = PetscOptionsHasName(NULL,"-python",&flg);CHKERRQ(ierr); 942 if (flg) { 943 PetscInitializeCalled = PETSC_TRUE; 944 ierr = PetscPythonInitialize(NULL,NULL);CHKERRQ(ierr); 945 } 946 947 ierr = PetscThreadCommInitializePackage();CHKERRQ(ierr); 948 949 /* 950 Setup building of stack frames for all function calls 951 */ 952 PetscThreadLocalRegister((PetscThreadKey*)&petscstack); /* Creates pthread_key */ 953 #if defined(PETSC_USE_DEBUG) 954 ierr = PetscStackCreate();CHKERRQ(ierr); 955 #endif 956 957 #if defined(PETSC_SERIALIZE_FUNCTIONS) 958 ierr = PetscFPTCreate(10000);CHKERRQ(ierr); 959 #endif 960 961 962 /* 963 Once we are completedly initialized then we can set this variables 964 */ 965 PetscInitializeCalled = PETSC_TRUE; 966 PetscFunctionReturn(0); 967 } 968 969 extern PetscObject *PetscObjects; 970 extern PetscInt PetscObjectsCounts, PetscObjectsMaxCounts; 971 972 #undef __FUNCT__ 973 #define __FUNCT__ "PetscFinalize" 974 /*@C 975 PetscFinalize - Checks for options to be called at the conclusion 976 of the program. MPI_Finalize() is called only if the user had not 977 called MPI_Init() before calling PetscInitialize(). 978 979 Collective on PETSC_COMM_WORLD 980 981 Options Database Keys: 982 + -options_table - Calls PetscOptionsView() 983 . -options_left - Prints unused options that remain in the database 984 . -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 985 . -mpidump - Calls PetscMPIDump() 986 . -malloc_dump - Calls PetscMallocDump() 987 . -malloc_info - Prints total memory usage 988 - -malloc_log - Prints summary of memory usage 989 990 Level: beginner 991 992 Note: 993 See PetscInitialize() for more general runtime options. 994 995 .seealso: PetscInitialize(), PetscOptionsView(), PetscMallocDump(), PetscMPIDump(), PetscEnd() 996 @*/ 997 PetscErrorCode PetscFinalize(void) 998 { 999 PetscErrorCode ierr; 1000 PetscMPIInt rank; 1001 PetscInt nopt; 1002 PetscBool flg1 = PETSC_FALSE,flg2 = PETSC_FALSE,flg3 = PETSC_FALSE; 1003 PetscBool flg; 1004 #if defined(PETSC_USE_LOG) 1005 char mname[PETSC_MAX_PATH_LEN]; 1006 #endif 1007 1008 PetscFunctionBegin; 1009 if (!PetscInitializeCalled) { 1010 printf("PetscInitialize() must be called before PetscFinalize()\n"); 1011 PetscFunctionReturn(PETSC_ERR_ARG_WRONGSTATE); 1012 } 1013 ierr = PetscInfo(NULL,"PetscFinalize() called\n");CHKERRQ(ierr); 1014 1015 ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr); 1016 1017 ierr = PetscOptionsHasName(NULL,"-citations",&flg);CHKERRQ(ierr); 1018 if (flg) { 1019 char *cits, filename[PETSC_MAX_PATH_LEN]; 1020 FILE *fd = PETSC_STDOUT; 1021 1022 ierr = PetscOptionsGetString(NULL,"-citations",filename,PETSC_MAX_PATH_LEN,NULL);CHKERRQ(ierr); 1023 if (filename[0]) { 1024 ierr = PetscFOpen(PETSC_COMM_WORLD,filename,"w",&fd);CHKERRQ(ierr); 1025 } 1026 ierr = PetscSegBufferGet(PetscCitationsList,1,&cits);CHKERRQ(ierr); 1027 cits[0] = 0; 1028 ierr = PetscSegBufferExtractAlloc(PetscCitationsList,&cits);CHKERRQ(ierr); 1029 ierr = PetscFPrintf(PETSC_COMM_WORLD,fd,"If you publish results based on this computation please cite the following:\n");CHKERRQ(ierr); 1030 ierr = PetscFPrintf(PETSC_COMM_WORLD,fd,"===========================================================================\n");CHKERRQ(ierr); 1031 ierr = PetscFPrintf(PETSC_COMM_WORLD,fd,"%s",cits);CHKERRQ(ierr); 1032 ierr = PetscFPrintf(PETSC_COMM_WORLD,fd,"===========================================================================\n");CHKERRQ(ierr); 1033 ierr = PetscFClose(PETSC_COMM_WORLD,fd);CHKERRQ(ierr); 1034 ierr = PetscFree(cits);CHKERRQ(ierr); 1035 } 1036 ierr = PetscSegBufferDestroy(&PetscCitationsList);CHKERRQ(ierr); 1037 1038 #if defined(PETSC_SERIALIZE_FUNCTIONS) 1039 ierr = PetscFPTDestroy();CHKERRQ(ierr); 1040 #endif 1041 1042 1043 #if defined(PETSC_HAVE_SAWS) 1044 flg = PETSC_FALSE; 1045 ierr = PetscOptionsGetBool(NULL,"-saw_options",&flg,NULL);CHKERRQ(ierr); 1046 if (flg) { 1047 ierr = PetscOptionsSAWsDestroy();CHKERRQ(ierr); 1048 } 1049 #endif 1050 1051 #if defined(PETSC_HAVE_SERVER) 1052 flg1 = PETSC_FALSE; 1053 ierr = PetscOptionsGetBool(NULL,"-server",&flg1,NULL);CHKERRQ(ierr); 1054 if (flg1) { 1055 /* this is a crude hack, but better than nothing */ 1056 ierr = PetscPOpen(PETSC_COMM_WORLD,NULL,"pkill -9 petscwebserver","r",NULL);CHKERRQ(ierr); 1057 } 1058 #endif 1059 1060 #if defined(PETSC_HAVE_X) 1061 flg1 = PETSC_FALSE; 1062 ierr = PetscOptionsGetBool(NULL,"-x_virtual",&flg1,NULL);CHKERRQ(ierr); 1063 if (flg1) { 1064 /* this is a crude hack, but better than nothing */ 1065 ierr = PetscPOpen(PETSC_COMM_WORLD,NULL,"pkill -9 Xvfb","r",NULL);CHKERRQ(ierr); 1066 } 1067 #endif 1068 1069 ierr = PetscHMPIFinalize();CHKERRQ(ierr); 1070 1071 ierr = PetscOptionsGetBool(NULL,"-malloc_info",&flg2,NULL);CHKERRQ(ierr); 1072 if (!flg2) { 1073 flg2 = PETSC_FALSE; 1074 ierr = PetscOptionsGetBool(NULL,"-memory_info",&flg2,NULL);CHKERRQ(ierr); 1075 } 1076 if (flg2) { 1077 ierr = PetscMemoryShowUsage(PETSC_VIEWER_STDOUT_WORLD,"Summary of Memory Usage in PETSc\n");CHKERRQ(ierr); 1078 } 1079 1080 #if defined(PETSC_USE_LOG) 1081 flg1 = PETSC_FALSE; 1082 ierr = PetscOptionsGetBool(NULL,"-get_total_flops",&flg1,NULL);CHKERRQ(ierr); 1083 if (flg1) { 1084 PetscLogDouble flops = 0; 1085 ierr = MPI_Reduce(&petsc_TotalFlops,&flops,1,MPI_DOUBLE,MPI_SUM,0,PETSC_COMM_WORLD);CHKERRQ(ierr); 1086 ierr = PetscPrintf(PETSC_COMM_WORLD,"Total flops over all processors %g\n",flops);CHKERRQ(ierr); 1087 } 1088 #endif 1089 1090 1091 #if defined(PETSC_USE_LOG) 1092 #if defined(PETSC_HAVE_MPE) 1093 mname[0] = 0; 1094 1095 ierr = PetscOptionsGetString(NULL,"-log_mpe",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1096 if (flg1) { 1097 if (mname[0]) {ierr = PetscLogMPEDump(mname);CHKERRQ(ierr);} 1098 else {ierr = PetscLogMPEDump(0);CHKERRQ(ierr);} 1099 } 1100 #endif 1101 mname[0] = 0; 1102 1103 ierr = PetscOptionsGetString(NULL,"-log_summary",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1104 if (flg1) { 1105 PetscViewer viewer; 1106 if (mname[0]) { 1107 ierr = PetscViewerASCIIOpen(PETSC_COMM_WORLD,mname,&viewer);CHKERRQ(ierr); 1108 ierr = PetscLogView(viewer);CHKERRQ(ierr); 1109 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 1110 } else { 1111 viewer = PETSC_VIEWER_STDOUT_WORLD; 1112 ierr = PetscLogView(viewer);CHKERRQ(ierr); 1113 } 1114 } 1115 1116 mname[0] = 0; 1117 1118 ierr = PetscOptionsGetString(NULL,"-log_summary_python",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1119 if (flg1) { 1120 PetscViewer viewer; 1121 if (mname[0]) { 1122 ierr = PetscViewerASCIIOpen(PETSC_COMM_WORLD,mname,&viewer);CHKERRQ(ierr); 1123 ierr = PetscLogViewPython(viewer);CHKERRQ(ierr); 1124 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 1125 } else { 1126 viewer = PETSC_VIEWER_STDOUT_WORLD; 1127 ierr = PetscLogViewPython(viewer);CHKERRQ(ierr); 1128 } 1129 } 1130 1131 ierr = PetscOptionsGetString(NULL,"-log_detailed",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1132 if (flg1) { 1133 if (mname[0]) {ierr = PetscLogPrintDetailed(PETSC_COMM_WORLD,mname);CHKERRQ(ierr);} 1134 else {ierr = PetscLogPrintDetailed(PETSC_COMM_WORLD,0);CHKERRQ(ierr);} 1135 } 1136 1137 mname[0] = 0; 1138 1139 ierr = PetscOptionsGetString(NULL,"-log_all",mname,PETSC_MAX_PATH_LEN,&flg1);CHKERRQ(ierr); 1140 ierr = PetscOptionsGetString(NULL,"-log",mname,PETSC_MAX_PATH_LEN,&flg2);CHKERRQ(ierr); 1141 if (flg1 || flg2) { 1142 if (mname[0]) PetscLogDump(mname); 1143 else PetscLogDump(0); 1144 } 1145 #endif 1146 1147 /* 1148 Free all objects registered with PetscObjectRegisterDestroy() such as PETSC_VIEWER_XXX_(). 1149 */ 1150 ierr = PetscObjectRegisterDestroyAll();CHKERRQ(ierr); 1151 1152 ierr = PetscStackDestroy();CHKERRQ(ierr); 1153 PetscThreadLocalDestroy((PetscThreadKey)petscstack); /* Deletes pthread_key */ 1154 1155 flg1 = PETSC_FALSE; 1156 ierr = PetscOptionsGetBool(NULL,"-no_signal_handler",&flg1,NULL);CHKERRQ(ierr); 1157 if (!flg1) { ierr = PetscPopSignalHandler();CHKERRQ(ierr);} 1158 flg1 = PETSC_FALSE; 1159 ierr = PetscOptionsGetBool(NULL,"-mpidump",&flg1,NULL);CHKERRQ(ierr); 1160 if (flg1) { 1161 ierr = PetscMPIDump(stdout);CHKERRQ(ierr); 1162 } 1163 flg1 = PETSC_FALSE; 1164 flg2 = PETSC_FALSE; 1165 /* preemptive call to avoid listing this option in options table as unused */ 1166 ierr = PetscOptionsHasName(NULL,"-malloc_dump",&flg1);CHKERRQ(ierr); 1167 ierr = PetscOptionsHasName(NULL,"-objects_dump",&flg1);CHKERRQ(ierr); 1168 ierr = PetscOptionsGetBool(NULL,"-options_table",&flg2,NULL);CHKERRQ(ierr); 1169 1170 if (flg2) { 1171 PetscViewer viewer; 1172 ierr = PetscViewerASCIIGetStdout(PETSC_COMM_WORLD,&viewer);CHKERRQ(ierr); 1173 ierr = PetscOptionsView(viewer);CHKERRQ(ierr); 1174 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 1175 } 1176 1177 /* to prevent PETSc -options_left from warning */ 1178 ierr = PetscOptionsHasName(NULL,"-nox",&flg1);CHKERRQ(ierr); 1179 ierr = PetscOptionsHasName(NULL,"-nox_warning",&flg1);CHKERRQ(ierr); 1180 1181 if (!PetscHMPIWorker) { /* worker processes skip this because they do not usually process options */ 1182 flg3 = PETSC_FALSE; /* default value is required */ 1183 ierr = PetscOptionsGetBool(NULL,"-options_left",&flg3,&flg1);CHKERRQ(ierr); 1184 ierr = PetscOptionsAllUsed(&nopt);CHKERRQ(ierr); 1185 if (flg3) { 1186 if (!flg2) { /* have not yet printed the options */ 1187 PetscViewer viewer; 1188 ierr = PetscViewerASCIIGetStdout(PETSC_COMM_WORLD,&viewer);CHKERRQ(ierr); 1189 ierr = PetscOptionsView(viewer);CHKERRQ(ierr); 1190 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 1191 } 1192 if (!nopt) { 1193 ierr = PetscPrintf(PETSC_COMM_WORLD,"There are no unused options.\n");CHKERRQ(ierr); 1194 } else if (nopt == 1) { 1195 ierr = PetscPrintf(PETSC_COMM_WORLD,"There is one unused database option. It is:\n");CHKERRQ(ierr); 1196 } else { 1197 ierr = PetscPrintf(PETSC_COMM_WORLD,"There are %D unused database options. They are:\n",nopt);CHKERRQ(ierr); 1198 } 1199 } 1200 #if defined(PETSC_USE_DEBUG) 1201 if (nopt && !flg3 && !flg1) { 1202 ierr = PetscPrintf(PETSC_COMM_WORLD,"WARNING! There are options you set that were not used!\n");CHKERRQ(ierr); 1203 ierr = PetscPrintf(PETSC_COMM_WORLD,"WARNING! could be spelling mistake, etc!\n");CHKERRQ(ierr); 1204 ierr = PetscOptionsLeft();CHKERRQ(ierr); 1205 } else if (nopt && flg3) { 1206 #else 1207 if (nopt && flg3) { 1208 #endif 1209 ierr = PetscOptionsLeft();CHKERRQ(ierr); 1210 } 1211 } 1212 1213 #if defined(PETSC_HAVE_SAWS) 1214 if (!PetscGlobalRank) { 1215 ierr = PetscStackSAWsViewOff();CHKERRQ(ierr); 1216 PetscStackCallSAWs(SAWs_Finalize,()); 1217 } 1218 #endif 1219 1220 { 1221 PetscThreadComm tcomm_world; 1222 ierr = PetscGetThreadCommWorld(&tcomm_world);CHKERRQ(ierr); 1223 /* Free global thread communicator */ 1224 ierr = PetscThreadCommDestroy(&tcomm_world);CHKERRQ(ierr); 1225 } 1226 1227 /* 1228 List all objects the user may have forgot to free 1229 */ 1230 ierr = PetscOptionsHasName(NULL,"-objects_dump",&flg1);CHKERRQ(ierr); 1231 if (flg1) { 1232 MPI_Comm local_comm; 1233 char string[64]; 1234 1235 ierr = PetscOptionsGetString(NULL,"-objects_dump",string,64,NULL);CHKERRQ(ierr); 1236 ierr = MPI_Comm_dup(MPI_COMM_WORLD,&local_comm);CHKERRQ(ierr); 1237 ierr = PetscSequentialPhaseBegin_Private(local_comm,1);CHKERRQ(ierr); 1238 ierr = PetscObjectsDump(stdout,(string[0] == 'a') ? PETSC_TRUE : PETSC_FALSE);CHKERRQ(ierr); 1239 ierr = PetscSequentialPhaseEnd_Private(local_comm,1);CHKERRQ(ierr); 1240 ierr = MPI_Comm_free(&local_comm);CHKERRQ(ierr); 1241 } 1242 PetscObjectsCounts = 0; 1243 PetscObjectsMaxCounts = 0; 1244 1245 ierr = PetscFree(PetscObjects);CHKERRQ(ierr); 1246 1247 #if defined(PETSC_USE_LOG) 1248 ierr = PetscLogDestroy();CHKERRQ(ierr); 1249 #endif 1250 1251 /* 1252 Destroy any packages that registered a finalize 1253 */ 1254 ierr = PetscRegisterFinalizeAll();CHKERRQ(ierr); 1255 1256 /* 1257 Destroy all the function registration lists created 1258 */ 1259 ierr = PetscFinalize_DynamicLibraries();CHKERRQ(ierr); 1260 1261 /* 1262 Print PetscFunctionLists that have not been properly freed 1263 1264 ierr = PetscFunctionListPrintAll();CHKERRQ(ierr); 1265 */ 1266 1267 if (petsc_history) { 1268 ierr = PetscCloseHistoryFile(&petsc_history);CHKERRQ(ierr); 1269 petsc_history = 0; 1270 } 1271 1272 ierr = PetscInfoAllow(PETSC_FALSE,NULL);CHKERRQ(ierr); 1273 1274 { 1275 char fname[PETSC_MAX_PATH_LEN]; 1276 FILE *fd; 1277 int err; 1278 1279 fname[0] = 0; 1280 1281 ierr = PetscOptionsGetString(NULL,"-malloc_dump",fname,250,&flg1);CHKERRQ(ierr); 1282 flg2 = PETSC_FALSE; 1283 ierr = PetscOptionsGetBool(NULL,"-malloc_test",&flg2,NULL);CHKERRQ(ierr); 1284 #if defined(PETSC_USE_DEBUG) 1285 if (PETSC_RUNNING_ON_VALGRIND) flg2 = PETSC_FALSE; 1286 #else 1287 flg2 = PETSC_FALSE; /* Skip reporting for optimized builds regardless of -malloc_test */ 1288 #endif 1289 if (flg1 && fname[0]) { 1290 char sname[PETSC_MAX_PATH_LEN]; 1291 1292 sprintf(sname,"%s_%d",fname,rank); 1293 fd = fopen(sname,"w"); if (!fd) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Cannot open log file: %s",sname); 1294 ierr = PetscMallocDump(fd);CHKERRQ(ierr); 1295 err = fclose(fd); 1296 if (err) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SYS,"fclose() failed on file"); 1297 } else if (flg1 || flg2) { 1298 MPI_Comm local_comm; 1299 1300 ierr = MPI_Comm_dup(MPI_COMM_WORLD,&local_comm);CHKERRQ(ierr); 1301 ierr = PetscSequentialPhaseBegin_Private(local_comm,1);CHKERRQ(ierr); 1302 ierr = PetscMallocDump(stdout);CHKERRQ(ierr); 1303 ierr = PetscSequentialPhaseEnd_Private(local_comm,1);CHKERRQ(ierr); 1304 ierr = MPI_Comm_free(&local_comm);CHKERRQ(ierr); 1305 } 1306 } 1307 1308 { 1309 char fname[PETSC_MAX_PATH_LEN]; 1310 FILE *fd = NULL; 1311 1312 fname[0] = 0; 1313 1314 ierr = PetscOptionsGetString(NULL,"-malloc_log",fname,250,&flg1);CHKERRQ(ierr); 1315 ierr = PetscOptionsHasName(NULL,"-malloc_log_threshold",&flg2);CHKERRQ(ierr); 1316 if (flg1 && fname[0]) { 1317 int err; 1318 1319 if (!rank) { 1320 fd = fopen(fname,"w"); 1321 if (!fd) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Cannot open log file: %s",fname); 1322 } 1323 ierr = PetscMallocDumpLog(fd);CHKERRQ(ierr); 1324 if (fd) { 1325 err = fclose(fd); 1326 if (err) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SYS,"fclose() failed on file"); 1327 } 1328 } else if (flg1 || flg2) { 1329 ierr = PetscMallocDumpLog(stdout);CHKERRQ(ierr); 1330 } 1331 } 1332 /* Can be destroyed only after all the options are used */ 1333 ierr = PetscOptionsDestroy();CHKERRQ(ierr); 1334 1335 PetscGlobalArgc = 0; 1336 PetscGlobalArgs = 0; 1337 1338 #if defined(PETSC_USE_REAL___FLOAT128) 1339 ierr = MPI_Type_free(&MPIU___FLOAT128);CHKERRQ(ierr); 1340 #if defined(PETSC_HAVE_COMPLEX) 1341 ierr = MPI_Type_free(&MPIU___COMPLEX128);CHKERRQ(ierr); 1342 #endif 1343 ierr = MPI_Op_free(&MPIU_MAX);CHKERRQ(ierr); 1344 ierr = MPI_Op_free(&MPIU_MIN);CHKERRQ(ierr); 1345 #endif 1346 1347 #if defined(PETSC_HAVE_COMPLEX) 1348 #if !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX) 1349 ierr = MPI_Type_free(&MPIU_C_DOUBLE_COMPLEX);CHKERRQ(ierr); 1350 ierr = MPI_Type_free(&MPIU_C_COMPLEX);CHKERRQ(ierr); 1351 #endif 1352 #endif 1353 1354 #if (defined(PETSC_HAVE_COMPLEX) && !defined(PETSC_HAVE_MPI_C_DOUBLE_COMPLEX)) || defined(PETSC_USE_REAL___FLOAT128) 1355 ierr = MPI_Op_free(&MPIU_SUM);CHKERRQ(ierr); 1356 #endif 1357 1358 ierr = MPI_Type_free(&MPIU_2SCALAR);CHKERRQ(ierr); 1359 #if defined(PETSC_USE_64BIT_INDICES) || !defined(MPI_2INT) 1360 ierr = MPI_Type_free(&MPIU_2INT);CHKERRQ(ierr); 1361 #endif 1362 ierr = MPI_Op_free(&PetscMaxSum_Op);CHKERRQ(ierr); 1363 ierr = MPI_Op_free(&PetscADMax_Op);CHKERRQ(ierr); 1364 ierr = MPI_Op_free(&PetscADMin_Op);CHKERRQ(ierr); 1365 1366 /* 1367 Destroy any known inner MPI_Comm's and attributes pointing to them 1368 Note this will not destroy any new communicators the user has created. 1369 1370 If all PETSc objects were not destroyed those left over objects will have hanging references to 1371 the MPI_Comms that were freed; but that is ok because those PETSc objects will never be used again 1372 */ 1373 { 1374 PetscCommCounter *counter; 1375 PetscMPIInt flg; 1376 MPI_Comm icomm; 1377 union {MPI_Comm comm; void *ptr;} ucomm; 1378 ierr = MPI_Attr_get(PETSC_COMM_SELF,Petsc_InnerComm_keyval,&ucomm,&flg);CHKERRQ(ierr); 1379 if (flg) { 1380 icomm = ucomm.comm; 1381 ierr = MPI_Attr_get(icomm,Petsc_Counter_keyval,&counter,&flg);CHKERRQ(ierr); 1382 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_CORRUPT,"Inner MPI_Comm does not have expected tag/name counter, problem with corrupted memory"); 1383 1384 ierr = MPI_Attr_delete(PETSC_COMM_SELF,Petsc_InnerComm_keyval);CHKERRQ(ierr); 1385 ierr = MPI_Attr_delete(icomm,Petsc_Counter_keyval);CHKERRQ(ierr); 1386 ierr = MPI_Comm_free(&icomm);CHKERRQ(ierr); 1387 } 1388 ierr = MPI_Attr_get(PETSC_COMM_WORLD,Petsc_InnerComm_keyval,&ucomm,&flg);CHKERRQ(ierr); 1389 if (flg) { 1390 icomm = ucomm.comm; 1391 ierr = MPI_Attr_get(icomm,Petsc_Counter_keyval,&counter,&flg);CHKERRQ(ierr); 1392 if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_ARG_CORRUPT,"Inner MPI_Comm does not have expected tag/name counter, problem with corrupted memory"); 1393 1394 ierr = MPI_Attr_delete(PETSC_COMM_WORLD,Petsc_InnerComm_keyval);CHKERRQ(ierr); 1395 ierr = MPI_Attr_delete(icomm,Petsc_Counter_keyval);CHKERRQ(ierr); 1396 ierr = MPI_Comm_free(&icomm);CHKERRQ(ierr); 1397 } 1398 } 1399 1400 ierr = MPI_Keyval_free(&Petsc_Counter_keyval);CHKERRQ(ierr); 1401 ierr = MPI_Keyval_free(&Petsc_InnerComm_keyval);CHKERRQ(ierr); 1402 ierr = MPI_Keyval_free(&Petsc_OuterComm_keyval);CHKERRQ(ierr); 1403 1404 #if defined(PETSC_HAVE_CUDA) 1405 { 1406 PetscInt p; 1407 for (p = 0; p < PetscGlobalSize; ++p) { 1408 if (p == PetscGlobalRank) cublasShutdown(); 1409 ierr = MPI_Barrier(PETSC_COMM_WORLD);CHKERRQ(ierr); 1410 } 1411 } 1412 #endif 1413 1414 if (PetscBeganMPI) { 1415 #if defined(PETSC_HAVE_MPI_FINALIZED) 1416 PetscMPIInt flag; 1417 ierr = MPI_Finalized(&flag);CHKERRQ(ierr); 1418 if (flag) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"MPI_Finalize() has already been called, even though MPI_Init() was called by PetscInitialize()"); 1419 #endif 1420 ierr = MPI_Finalize();CHKERRQ(ierr); 1421 } 1422 /* 1423 1424 Note: In certain cases PETSC_COMM_WORLD is never MPI_Comm_free()ed because 1425 the communicator has some outstanding requests on it. Specifically if the 1426 flag PETSC_HAVE_BROKEN_REQUEST_FREE is set (for IBM MPI implementation). See 1427 src/vec/utils/vpscat.c. Due to this the memory allocated in PetscCommDuplicate() 1428 is never freed as it should be. Thus one may obtain messages of the form 1429 [ 1] 8 bytes PetscCommDuplicate() line 645 in src/sys/mpiu.c indicating the 1430 memory was not freed. 1431 1432 */ 1433 ierr = PetscMallocClear();CHKERRQ(ierr); 1434 1435 PetscInitializeCalled = PETSC_FALSE; 1436 PetscFinalizeCalled = PETSC_TRUE; 1437 PetscFunctionReturn(ierr); 1438 } 1439 1440 #if defined(PETSC_MISSING_LAPACK_lsame_) 1441 PETSC_EXTERN int lsame_(char *a,char *b) 1442 { 1443 if (*a == *b) return 1; 1444 if (*a + 32 == *b) return 1; 1445 if (*a - 32 == *b) return 1; 1446 return 0; 1447 } 1448 #endif 1449 1450 #if defined(PETSC_MISSING_LAPACK_lsame) 1451 PETSC_EXTERN int lsame(char *a,char *b) 1452 { 1453 if (*a == *b) return 1; 1454 if (*a + 32 == *b) return 1; 1455 if (*a - 32 == *b) return 1; 1456 return 0; 1457 } 1458 #endif 1459