Actual source code: mtr.c

petsc-3.6.1 2015-07-22
Report Typos and Errors
  2: /*
  3:      Interface to malloc() and free(). This code allows for
  4:   logging of memory usage and some error checking
  5: */
  6: #include <petscsys.h>           /*I "petscsys.h" I*/
  7: #include <petscviewer.h>
  8: #if defined(PETSC_HAVE_MALLOC_H)
  9: #include <malloc.h>
 10: #endif


 13: /*
 14:      These are defined in mal.c and ensure that malloced space is PetscScalar aligned
 15: */
 16: extern PetscErrorCode  PetscMallocAlign(size_t,int,const char[],const char[],void**);
 17: extern PetscErrorCode  PetscFreeAlign(void*,int,const char[],const char[]);
 18: extern PetscErrorCode  PetscTrMallocDefault(size_t,int,const char[],const char[],void**);
 19: extern PetscErrorCode  PetscTrFreeDefault(void*,int,const char[],const char[]);


 22: #define CLASSID_VALUE  ((PetscClassId) 0xf0e0d0c9)
 23: #define ALREADY_FREED  ((PetscClassId) 0x0f0e0d9c)

 25: typedef struct _trSPACE {
 26:   size_t       size;
 27:   int          id;
 28:   int          lineno;
 29:   const char   *filename;
 30:   const char   *functionname;
 31:   PetscClassId classid;
 32: #if defined(PETSC_USE_DEBUG)
 33:   PetscStack   stack;
 34: #endif
 35:   struct _trSPACE *next,*prev;
 36: } TRSPACE;

 38: /* HEADER_BYTES is the number of bytes in a PetscMalloc() header.
 39:    It is sizeof(TRSPACE) padded to be a multiple of PETSC_MEMALIGN.
 40: */

 42: #define HEADER_BYTES  ((sizeof(TRSPACE)+(PETSC_MEMALIGN-1)) & ~(PETSC_MEMALIGN-1))


 45: /* This union is used to insure that the block passed to the user retains
 46:    a minimum alignment of PETSC_MEMALIGN.
 47: */
 48: typedef union {
 49:   TRSPACE sp;
 50:   char    v[HEADER_BYTES];
 51: } TrSPACE;


 54: static size_t    TRallocated  = 0;
 55: static int       TRfrags      = 0;
 56: static TRSPACE   *TRhead      = NULL;
 57: static int       TRid         = 0;
 58: static PetscBool TRdebugLevel = PETSC_FALSE;
 59: static size_t    TRMaxMem     = 0;
 60: /*
 61:       Arrays to log information on all Mallocs
 62: */
 63: static int        PetscLogMallocMax       = 10000;
 64: static int        PetscLogMalloc          = -1;
 65: static size_t     PetscLogMallocThreshold = 0;
 66: static size_t     *PetscLogMallocLength;
 67: static const char **PetscLogMallocFile,**PetscLogMallocFunction;

 71: PetscErrorCode PetscSetUseTrMalloc_Private(void)
 72: {

 76:   PetscMallocSet(PetscTrMallocDefault,PetscTrFreeDefault);

 78:   TRallocated       = 0;
 79:   TRfrags           = 0;
 80:   TRhead            = NULL;
 81:   TRid              = 0;
 82:   TRdebugLevel      = PETSC_FALSE;
 83:   TRMaxMem          = 0;
 84:   PetscLogMallocMax = 10000;
 85:   PetscLogMalloc    = -1;
 86:   return(0);
 87: }

 91: /*@C
 92:    PetscMallocValidate - Test the memory for corruption.  This can be used to
 93:    check for memory overwrites.

 95:    Input Parameter:
 96: +  line - line number where call originated.
 97: .  function - name of function calling
 98: -  file - file where function is

100:    Return value:
101:    The number of errors detected.

103:    Output Effect:
104:    Error messages are written to stdout.

106:    Level: advanced

108:    Notes:
109:     You should generally use CHKMEMQ as a short cut for calling this
110:     routine.

112:     The line, function, file are given by the C preprocessor as
113:     __LINE__, __FUNCT__, __FILE__

115:     The Fortran calling sequence is simply PetscMallocValidate(ierr)

117:    No output is generated if there are no problems detected.

119: .seealso: CHKMEMQ

121: @*/
122: PetscErrorCode  PetscMallocValidate(int line,const char function[],const char file[])
123: {
124:   TRSPACE      *head,*lasthead;
125:   char         *a;
126:   PetscClassId *nend;

129:   head = TRhead; lasthead = NULL;
130:   while (head) {
131:     if (head->classid != CLASSID_VALUE) {
132:       (*PetscErrorPrintf)("PetscMallocValidate: error detected at  %s() line %d in %s\n",function,line,file);
133:       (*PetscErrorPrintf)("Memory at address %p is corrupted\n",head);
134:       (*PetscErrorPrintf)("Probably write past beginning or end of array\n");
135:       if (lasthead) (*PetscErrorPrintf)("Last intact block allocated in %s() line %d in %s\n",lasthead->functionname,lasthead->lineno,lasthead->filename);
136:       SETERRQ(PETSC_COMM_SELF,PETSC_ERR_MEMC," ");
137:     }
138:     a    = (char*)(((TrSPACE*)head) + 1);
139:     nend = (PetscClassId*)(a + head->size);
140:     if (*nend != CLASSID_VALUE) {
141:       (*PetscErrorPrintf)("PetscMallocValidate: error detected at %s() line %d in %s\n",function,line,file);
142:       if (*nend == ALREADY_FREED) {
143:         (*PetscErrorPrintf)("Memory [id=%d(%.0f)] at address %p already freed\n",head->id,(PetscLogDouble)head->size,a);
144:         SETERRQ(PETSC_COMM_SELF,PETSC_ERR_MEMC," ");
145:       } else {
146:         (*PetscErrorPrintf)("Memory [id=%d(%.0f)] at address %p is corrupted (probably write past end of array)\n",head->id,(PetscLogDouble)head->size,a);
147:         (*PetscErrorPrintf)("Memory originally allocated in %s() line %d in %s\n",head->functionname,head->lineno,head->filename);
148:         SETERRQ(PETSC_COMM_SELF,PETSC_ERR_MEMC," ");
149:       }
150:     }
151:     lasthead = head;
152:     head     = head->next;
153:   }
154:   return(0);
155: }

159: /*
160:     PetscTrMallocDefault - Malloc with tracing.

162:     Input Parameters:
163: +   a   - number of bytes to allocate
164: .   lineno - line number where used.  Use __LINE__ for this
165: .   function - function calling routine. Use __FUNCT__ for this
166: -   filename  - file name where used.  Use __FILE__ for this

168:     Returns:
169:     double aligned pointer to requested storage, or null if not
170:     available.
171:  */
172: PetscErrorCode  PetscTrMallocDefault(size_t a,int lineno,const char function[],const char filename[],void **result)
173: {
174:   TRSPACE        *head;
175:   char           *inew;
176:   size_t         nsize;

180:   /* Do not try to handle empty blocks */
181:   if (!a) { *result = NULL; return(0); }

183:   if (TRdebugLevel) {
184:     PetscMallocValidate(lineno,function,filename); if (ierr) PetscFunctionReturn(ierr);
185:   }

187:   nsize = (a + (PETSC_MEMALIGN-1)) & ~(PETSC_MEMALIGN-1);
188:   PetscMallocAlign(nsize+sizeof(TrSPACE)+sizeof(PetscClassId),lineno,function,filename,(void**)&inew);

190:   head  = (TRSPACE*)inew;
191:   inew += sizeof(TrSPACE);

193:   if (TRhead) TRhead->prev = head;
194:   head->next   = TRhead;
195:   TRhead       = head;
196:   head->prev   = NULL;
197:   head->size   = nsize;
198:   head->id     = TRid;
199:   head->lineno = lineno;

201:   head->filename                 = filename;
202:   head->functionname             = function;
203:   head->classid                  = CLASSID_VALUE;
204:   *(PetscClassId*)(inew + nsize) = CLASSID_VALUE;

206:   TRallocated += nsize;
207:   if (TRallocated > TRMaxMem) TRMaxMem = TRallocated;
208:   TRfrags++;

210: #if defined(PETSC_USE_DEBUG)
211:   if (PetscStackActive()) {
212:     PetscStackCopy(petscstack,&head->stack);
214:     head->stack.line[head->stack.currentsize-2] = lineno;
215:   }
216: #endif

218:   /*
219:          Allow logging of all mallocs made
220:   */
221:   if (PetscLogMalloc > -1 && PetscLogMalloc < PetscLogMallocMax && a >= PetscLogMallocThreshold) {
222:     if (!PetscLogMalloc) {
223:       PetscLogMallocLength = (size_t*)malloc(PetscLogMallocMax*sizeof(size_t));
224:       if (!PetscLogMallocLength) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_MEM," ");

226:       PetscLogMallocFile = (const char**)malloc(PetscLogMallocMax*sizeof(char*));
227:       if (!PetscLogMallocFile) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_MEM," ");

229:       PetscLogMallocFunction = (const char**)malloc(PetscLogMallocMax*sizeof(char*));
230:       if (!PetscLogMallocFunction) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_MEM," ");
231:     }
232:     PetscLogMallocLength[PetscLogMalloc]     = nsize;
233:     PetscLogMallocFile[PetscLogMalloc]       = filename;
234:     PetscLogMallocFunction[PetscLogMalloc++] = function;
235:   }
236:   *result = (void*)inew;
237:   return(0);
238: }


243: /*
244:    PetscTrFreeDefault - Free with tracing.

246:    Input Parameters:
247: .   a    - pointer to a block allocated with PetscTrMalloc
248: .   lineno - line number where used.  Use __LINE__ for this
249: .   function - function calling routine. Use __FUNCT__ for this
250: .   file  - file name where used.  Use __FILE__ for this
251:  */
252: PetscErrorCode  PetscTrFreeDefault(void *aa,int line,const char function[],const char file[])
253: {
254:   char           *a = (char*)aa;
255:   TRSPACE        *head;
256:   char           *ahead;
258:   PetscClassId   *nend;

261:   /* Do not try to handle empty blocks */
262:   if (!a) return(0);

264:   if (TRdebugLevel) {
265:     PetscMallocValidate(line,function,file);
266:   }

268:   ahead = a;
269:   a     = a - sizeof(TrSPACE);
270:   head  = (TRSPACE*)a;

272:   if (head->classid != CLASSID_VALUE) {
273:     (*PetscErrorPrintf)("PetscTrFreeDefault() called from %s() line %d in %s\n",function,line,file);
274:     (*PetscErrorPrintf)("Block at address %p is corrupted; cannot free;\nmay be block not allocated with PetscMalloc()\n",a);
275:     SETERRQ(PETSC_COMM_SELF,PETSC_ERR_MEMC,"Bad location or corrupted memory");
276:   }
277:   nend = (PetscClassId*)(ahead + head->size);
278:   if (*nend != CLASSID_VALUE) {
279:     if (*nend == ALREADY_FREED) {
280:       (*PetscErrorPrintf)("PetscTrFreeDefault() called from %s() line %d in %s\n",function,line,file);
281:       (*PetscErrorPrintf)("Block [id=%d(%.0f)] at address %p was already freed\n",head->id,(PetscLogDouble)head->size,a + sizeof(TrSPACE));
282:       if (head->lineno > 0 && head->lineno < 50000 /* sanity check */) {
283:         (*PetscErrorPrintf)("Block freed in %s() line %d in %s\n",head->functionname,head->lineno,head->filename);
284:       } else {
285:         (*PetscErrorPrintf)("Block allocated in %s() line %d in %s\n",head->functionname,-head->lineno,head->filename);
286:       }
287:       SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Memory already freed");
288:     } else {
289:       /* Damaged tail */
290:       (*PetscErrorPrintf)("PetscTrFreeDefault() called from %s() line %d in %s\n",function,line,file);
291:       (*PetscErrorPrintf)("Block [id=%d(%.0f)] at address %p is corrupted (probably write past end of array)\n",head->id,(PetscLogDouble)head->size,a);
292:       (*PetscErrorPrintf)("Block allocated in %s() line %d in %s\n",head->functionname,head->lineno,head->filename);
293:       SETERRQ(PETSC_COMM_SELF,PETSC_ERR_MEMC,"Corrupted memory");
294:     }
295:   }
296:   /* Mark the location freed */
297:   *nend = ALREADY_FREED;
298:   /* Save location where freed.  If we suspect the line number, mark as  allocated location */
299:   if (line > 0 && line < 50000) {
300:     head->lineno       = line;
301:     head->filename     = file;
302:     head->functionname = function;
303:   } else {
304:     head->lineno = -head->lineno;
305:   }
306:   /* zero out memory - helps to find some reuse of already freed memory */
307:   PetscMemzero(aa,head->size);

309:   TRallocated -= head->size;
310:   TRfrags--;
311:   if (head->prev) head->prev->next = head->next;
312:   else TRhead = head->next;

314:   if (head->next) head->next->prev = head->prev;
315:   PetscFreeAlign(a,line,function,file);
316:   return(0);
317: }


322: /*@C
323:     PetscMemoryShowUsage - Shows the amount of memory currently being used
324:         in a communicator.

326:     Collective on PetscViewer

328:     Input Parameter:
329: +    viewer - the viewer that defines the communicator
330: -    message - string printed before values

332:     Level: intermediate

334:     Concepts: memory usage

336: .seealso: PetscMallocDump(), PetscMemoryGetCurrentUsage()
337:  @*/
338: PetscErrorCode  PetscMemoryShowUsage(PetscViewer viewer,const char message[])
339: {
340:   PetscLogDouble allocated,maximum,resident,residentmax;
342:   PetscMPIInt    rank;
343:   MPI_Comm       comm;

346:   if (!viewer) viewer = PETSC_VIEWER_STDOUT_WORLD;
347:   PetscMallocGetCurrentUsage(&allocated);
348:   PetscMallocGetMaximumUsage(&maximum);
349:   PetscMemoryGetCurrentUsage(&resident);
350:   PetscMemoryGetMaximumUsage(&residentmax);
351:   if (residentmax > 0) residentmax = PetscMax(resident,residentmax);
352:   PetscObjectGetComm((PetscObject)viewer,&comm);
353:   MPI_Comm_rank(comm,&rank);
354:   PetscViewerASCIIPrintf(viewer,message);
355:   PetscViewerASCIISynchronizedAllow(viewer,PETSC_TRUE);
356:   if (resident && residentmax && allocated) {
357:     PetscViewerASCIISynchronizedPrintf(viewer,"[%d]Current space PetscMalloc()ed %g, max space PetscMalloced() %g\n[%d]Current process memory %g max process memory %g\n",rank,allocated,maximum,rank,resident,residentmax);
358:   } else if (resident && residentmax) {
359:     PetscViewerASCIISynchronizedPrintf(viewer,"[%d]Run with -malloc to get statistics on PetscMalloc() calls\n[%d]Current process memory %g max process memory %g\n",rank,rank,resident,residentmax);
360:   } else if (resident && allocated) {
361:     PetscViewerASCIISynchronizedPrintf(viewer,"[%d]Current space PetscMalloc()ed %g, max space PetscMalloced() %g\n[%d]Current process memory %g, run with -memory_info to get max memory usage\n",rank,allocated,maximum,rank,resident);
362:   } else if (allocated) {
363:     PetscViewerASCIISynchronizedPrintf(viewer,"[%d]Current space PetscMalloc()ed %g, max space PetscMalloced() %g\n[%d]OS cannot compute process memory\n",rank,allocated,maximum,rank);
364:   } else {
365:     PetscViewerASCIIPrintf(viewer,"Run with -malloc to get statistics on PetscMalloc() calls\nOS cannot compute process memory\n");
366:   }
367:   PetscViewerFlush(viewer);
368:   PetscViewerASCIISynchronizedAllow(viewer,PETSC_FALSE);
369:   return(0);
370: }

374: /*@C
375:     PetscMallocGetCurrentUsage - gets the current amount of memory used that was PetscMalloc()ed

377:     Not Collective

379:     Output Parameters:
380: .   space - number of bytes currently allocated

382:     Level: intermediate

384:     Concepts: memory usage

386: .seealso: PetscMallocDump(), PetscMallocDumpLog(), PetscMallocGetMaximumUsage(), PetscMemoryGetCurrentUsage(),
387:           PetscMemoryGetMaximumUsage()
388:  @*/
389: PetscErrorCode  PetscMallocGetCurrentUsage(PetscLogDouble *space)
390: {
392:   *space = (PetscLogDouble) TRallocated;
393:   return(0);
394: }

398: /*@C
399:     PetscMallocGetMaximumUsage - gets the maximum amount of memory used that was PetscMalloc()ed at any time
400:         during this run.

402:     Not Collective

404:     Output Parameters:
405: .   space - maximum number of bytes ever allocated at one time

407:     Level: intermediate

409:     Concepts: memory usage

411: .seealso: PetscMallocDump(), PetscMallocDumpLog(), PetscMallocGetMaximumUsage(), PetscMemoryGetCurrentUsage(),
412:           PetscMemoryGetCurrentUsage()
413:  @*/
414: PetscErrorCode  PetscMallocGetMaximumUsage(PetscLogDouble *space)
415: {
417:   *space = (PetscLogDouble) TRMaxMem;
418:   return(0);
419: }

421: #if defined(PETSC_USE_DEBUG)
424: /*@C
425:    PetscMallocGetStack - returns a pointer to the stack for the location in the program a call to PetscMalloc() was used to obtain that memory

427:    Collective on PETSC_COMM_WORLD

429:    Input Parameter:
430: .    ptr - the memory location

432:    Output Paramter:
433: .    stack - the stack indicating where the program allocated this memory

435:    Level: intermediate

437: .seealso:  PetscMallocGetCurrentUsage(), PetscMallocDumpLog()
438: @*/
439: PetscErrorCode  PetscMallocGetStack(void *ptr,PetscStack **stack)
440: {
441:   TRSPACE *head;

444:   head   = (TRSPACE*) (((char*)ptr) - HEADER_BYTES);
445:   *stack = &head->stack;
446:   return(0);
447: }
448: #else
451: PetscErrorCode  PetscMallocGetStack(void *ptr,void **stack)
452: {
454:   *stack = NULL;
455:   return(0);
456: }
457: #endif

461: /*@C
462:    PetscMallocDump - Dumps the allocated memory blocks to a file. The information
463:    printed is: size of space (in bytes), address of space, id of space,
464:    file in which space was allocated, and line number at which it was
465:    allocated.

467:    Collective on PETSC_COMM_WORLD

469:    Input Parameter:
470: .  fp  - file pointer.  If fp is NULL, stdout is assumed.

472:    Options Database Key:
473: .  -malloc_dump - Dumps unfreed memory during call to PetscFinalize()

475:    Level: intermediate

477:    Fortran Note:
478:    The calling sequence in Fortran is PetscMallocDump(integer ierr)
479:    The fp defaults to stdout.

481:    Notes: uses MPI_COMM_WORLD, because this may be called in PetscFinalize() after PETSC_COMM_WORLD
482:           has been freed.

484:    Concepts: memory usage
485:    Concepts: memory bleeding
486:    Concepts: bleeding memory

488: .seealso:  PetscMallocGetCurrentUsage(), PetscMallocDumpLog()
489: @*/
490: PetscErrorCode  PetscMallocDump(FILE *fp)
491: {
492:   TRSPACE        *head;
494:   PetscMPIInt    rank;

497:   MPI_Comm_rank(MPI_COMM_WORLD,&rank);
498:   if (!fp) fp = PETSC_STDOUT;
499:   if (TRallocated > 0) fprintf(fp,"[%d]Total space allocated %.0f bytes\n",rank,(PetscLogDouble)TRallocated);
500:   head = TRhead;
501:   while (head) {
502:     fprintf(fp,"[%2d]%.0f bytes %s() line %d in %s\n",rank,(PetscLogDouble)head->size,head->functionname,head->lineno,head->filename);
503: #if defined(PETSC_USE_DEBUG)
504:     PetscStackPrint(&head->stack,fp);
505: #endif
506:     head = head->next;
507:   }
508:   return(0);
509: }

511: /* ---------------------------------------------------------------------------- */

515: /*@C
516:     PetscMallocSetDumpLog - Activates logging of all calls to PetscMalloc().

518:     Not Collective

520:     Options Database Key:
521: +  -malloc_log <filename> - Activates PetscMallocDumpLog()
522: -  -malloc_log_threshold <min> - Activates logging and sets a minimum size

524:     Level: advanced

526: .seealso: PetscMallocDump(), PetscMallocDumpLog(), PetscMallocSetDumpLogThreshold()
527: @*/
528: PetscErrorCode PetscMallocSetDumpLog(void)
529: {

533:   PetscLogMalloc = 0;

535:   PetscMemorySetGetMaximumUsage();
536:   return(0);
537: }

541: /*@C
542:     PetscMallocSetDumpLogThreshold - Activates logging of all calls to PetscMalloc().

544:     Not Collective

546:     Input Arguments:
547: .   logmin - minimum allocation size to log, or PETSC_DEFAULT

549:     Options Database Key:
550: +  -malloc_log <filename> - Activates PetscMallocDumpLog()
551: -  -malloc_log_threshold <min> - Activates logging and sets a minimum size

553:     Level: advanced

555: .seealso: PetscMallocDump(), PetscMallocDumpLog(), PetscMallocSetDumpLog()
556: @*/
557: PetscErrorCode PetscMallocSetDumpLogThreshold(PetscLogDouble logmin)
558: {

562:   PetscMallocSetDumpLog();
563:   if (logmin < 0) logmin = 0.0; /* PETSC_DEFAULT or PETSC_DECIDE */
564:   PetscLogMallocThreshold = (size_t)logmin;
565:   return(0);
566: }

570: /*@C
571:     PetscMallocGetDumpLog - Determine whether all calls to PetscMalloc() are being logged

573:     Not Collective

575:     Output Arguments
576: .   logging - PETSC_TRUE if logging is active

578:     Options Database Key:
579: .  -malloc_log - Activates PetscMallocDumpLog()

581:     Level: advanced

583: .seealso: PetscMallocDump(), PetscMallocDumpLog()
584: @*/
585: PetscErrorCode PetscMallocGetDumpLog(PetscBool *logging)
586: {

589:   *logging = (PetscBool)(PetscLogMalloc >= 0);
590:   return(0);
591: }

595: /*@C
596:     PetscMallocDumpLog - Dumps the log of all calls to PetscMalloc(); also calls
597:        PetscMemoryGetMaximumUsage()

599:     Collective on PETSC_COMM_WORLD

601:     Input Parameter:
602: .   fp - file pointer; or NULL

604:     Options Database Key:
605: .  -malloc_log - Activates PetscMallocDumpLog()

607:     Level: advanced

609:    Fortran Note:
610:    The calling sequence in Fortran is PetscMallocDumpLog(integer ierr)
611:    The fp defaults to stdout.

613: .seealso: PetscMallocGetCurrentUsage(), PetscMallocDump(), PetscMallocSetDumpLog()
614: @*/
615: PetscErrorCode  PetscMallocDumpLog(FILE *fp)
616: {
617:   PetscInt       i,j,n,dummy,*perm;
618:   size_t         *shortlength;
619:   int            *shortcount,err;
620:   PetscMPIInt    rank,size,tag = 1212 /* very bad programming */;
621:   PetscBool      match;
622:   const char     **shortfunction;
623:   PetscLogDouble rss;
624:   MPI_Status     status;

628:   MPI_Comm_rank(MPI_COMM_WORLD,&rank);
629:   MPI_Comm_size(MPI_COMM_WORLD,&size);
630:   /*
631:        Try to get the data printed in order by processor. This will only sometimes work
632:   */
633:   err = fflush(fp);
634:   if (err) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SYS,"fflush() failed on file");

636:   MPI_Barrier(MPI_COMM_WORLD);
637:   if (rank) {
638:     MPI_Recv(&dummy,1,MPIU_INT,rank-1,tag,MPI_COMM_WORLD,&status);
639:   }

641:   if (PetscLogMalloc < 0) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"PetscMallocDumpLog() called without call to PetscMallocSetDumpLog() this is often due to\n                      setting the option -malloc_log AFTER PetscInitialize() with PetscOptionsInsert() or PetscOptionsInsertFile()");

643:   if (!fp) fp = PETSC_STDOUT;
644:   PetscMemoryGetMaximumUsage(&rss);
645:   if (rss) {
646:     PetscFPrintf(MPI_COMM_WORLD,fp,"[%d] Maximum memory PetscMalloc()ed %.0f maximum size of entire process %.0f\n",rank,(PetscLogDouble)TRMaxMem,rss);
647:   } else {
648:     PetscFPrintf(MPI_COMM_WORLD,fp,"[%d] Maximum memory PetscMalloc()ed %.0f OS cannot compute size of entire process\n",rank,(PetscLogDouble)TRMaxMem);
649:   }
650:   shortcount    = (int*)malloc(PetscLogMalloc*sizeof(int));if (!shortcount) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_MEM,"Out of memory");
651:   shortlength   = (size_t*)malloc(PetscLogMalloc*sizeof(size_t));if (!shortlength) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_MEM,"Out of memory");
652:   shortfunction = (const char**)malloc(PetscLogMalloc*sizeof(char*));if (!shortfunction) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_MEM,"Out of memory");
653:   for (i=0,n=0; i<PetscLogMalloc; i++) {
654:     for (j=0; j<n; j++) {
655:       PetscStrcmp(shortfunction[j],PetscLogMallocFunction[i],&match);
656:       if (match) {
657:         shortlength[j] += PetscLogMallocLength[i];
658:         shortcount[j]++;
659:         goto foundit;
660:       }
661:     }
662:     shortfunction[n] = PetscLogMallocFunction[i];
663:     shortlength[n]   = PetscLogMallocLength[i];
664:     shortcount[n]    = 1;
665:     n++;
666: foundit:;
667:   }

669:   perm = (PetscInt*)malloc(n*sizeof(PetscInt));if (!perm) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_MEM,"Out of memory");
670:   for (i=0; i<n; i++) perm[i] = i;
671:   PetscSortStrWithPermutation(n,(const char**)shortfunction,perm);

673:   PetscFPrintf(MPI_COMM_WORLD,fp,"[%d] Memory usage sorted by function\n",rank);
674:   for (i=0; i<n; i++) {
675:     PetscFPrintf(MPI_COMM_WORLD,fp,"[%d] %d %.0f %s()\n",rank,shortcount[perm[i]],(PetscLogDouble)shortlength[perm[i]],shortfunction[perm[i]]);
676:   }
677:   free(perm);
678:   free(shortlength);
679:   free(shortcount);
680:   free((char**)shortfunction);
681:   err = fflush(fp);
682:   if (err) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SYS,"fflush() failed on file");
683:   if (rank != size-1) {
684:     MPI_Send(&dummy,1,MPIU_INT,rank+1,tag,MPI_COMM_WORLD);
685:   }
686:   return(0);
687: }

689: /* ---------------------------------------------------------------------------- */

693: /*@C
694:     PetscMallocDebug - Turns on/off debugging for the memory management routines.

696:     Not Collective

698:     Input Parameter:
699: .   level - PETSC_TRUE or PETSC_FALSE

701:    Level: intermediate

703: .seealso: CHKMEMQ(), PetscMallocValidate()
704: @*/
705: PetscErrorCode  PetscMallocDebug(PetscBool level)
706: {
708:   TRdebugLevel = level;
709:   return(0);
710: }

714: /*@C
715:     PetscMallocGetDebug - Indicates if any PETSc is doing ANY memory debugging.

717:     Not Collective

719:     Output Parameter:
720: .    flg - PETSC_TRUE if any debugger

722:    Level: intermediate

724:     Note that by default, the debug version always does some debugging unless you run with -malloc no


727: .seealso: CHKMEMQ(), PetscMallocValidate()
728: @*/
729: PetscErrorCode  PetscMallocGetDebug(PetscBool *flg)
730: {
732:   if (PetscTrMalloc == PetscTrMallocDefault) *flg = PETSC_TRUE;
733:   else *flg = PETSC_FALSE;
734:   return(0);
735: }