Date: 2015-10-02T21:59:35+00:00

Actual source code: errtrace.c
petsc-3.6.2 2015-10-02
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      2: #include <petscsys.h>        /*I "petscsys.h" I*/
      3: #include <petscconfiginfo.h>
      4: #if defined(PETSC_HAVE_UNISTD_H)
      5: #include <unistd.h>
      6: #endif

     10: /*@C
     11:    PetscIgnoreErrorHandler - Ignores the error, allows program to continue as if error did not occure

     13:    Not Collective

     15:    Input Parameters:
     16: +  comm - communicator over which error occurred
     17: .  line - the line number of the error (indicated by __LINE__)
     18: .  func - the function where error is detected (indicated by __FUNCT__)
     19: .  file - the file in which the error was detected (indicated by __FILE__)
     20: .  mess - an error text string, usually just printed to the screen
     21: .  n - the generic error number
     22: .  p - specific error number
     23: -  ctx - error handler context

     25:    Level: developer

     27:    Notes:
     28:    Most users need not directly employ this routine and the other error
     29:    handlers, but can instead use the simplified interface SETERRQ, which has
     30:    the calling sequence
     31: $     SETERRQ(comm,number,p,mess)

     33:    Notes for experienced users:
     34:    Use PetscPushErrorHandler() to set the desired error handler.  The
     35:    currently available PETSc error handlers include PetscTraceBackErrorHandler(),
     36:    PetscAttachDebuggerErrorHandler(), PetscAbortErrorHandler(), and PetscMPIAbortErrorHandler()

     38:    Concepts: error handler^traceback
     39:    Concepts: traceback^generating

     41: .seealso:  PetscPushErrorHandler(), PetscAttachDebuggerErrorHandler(),
     42:           PetscAbortErrorHandler(), PetscTraceBackErrorHandler()
     43:  @*/
     44: PetscErrorCode  PetscIgnoreErrorHandler(MPI_Comm comm,int line,const char *fun,const char *file,PetscErrorCode n,PetscErrorType p,const char *mess,void *ctx)
     45: {
     47:   PetscFunctionReturn(n);
     48: }

     50: /* ---------------------------------------------------------------------------------------*/

     52: static char      arch[128],hostname[128],username[128],pname[PETSC_MAX_PATH_LEN],date[128];
     53: static PetscBool PetscErrorPrintfInitializeCalled = PETSC_FALSE;
     54: static char      version[256];

     58: /*
     59:    Initializes arch, hostname, username,date so that system calls do NOT need
     60:    to be made during the error handler.
     61: */
     62: PetscErrorCode  PetscErrorPrintfInitialize()
     63: {
     65:   PetscBool      use_stdout = PETSC_FALSE,use_none = PETSC_FALSE;

     68:   PetscGetArchType(arch,sizeof(arch));
     69:   PetscGetHostName(hostname,sizeof(hostname));
     70:   PetscGetUserName(username,sizeof(username));
     71:   PetscGetProgramName(pname,PETSC_MAX_PATH_LEN);
     72:   PetscGetDate(date,sizeof(date));
     73:   PetscGetVersion(version,sizeof(version));

     75:   PetscOptionsGetBool(NULL,"-error_output_stdout",&use_stdout,NULL);
     76:   if (use_stdout) PETSC_STDERR = PETSC_STDOUT;
     77:   PetscOptionsGetBool(NULL,"-error_output_none",&use_none,NULL);
     78:   if (use_none) PetscErrorPrintf = PetscErrorPrintfNone;
     79:   PetscErrorPrintfInitializeCalled = PETSC_TRUE;
     80:   return(0);
     81: }

     85: PetscErrorCode  PetscErrorPrintfNone(const char format[],...)
     86: {
     87:   return 0;
     88: }

     92: PetscErrorCode  PetscErrorPrintfDefault(const char format[],...)
     93: {
     94:   va_list          Argp;
     95:   static PetscBool PetscErrorPrintfCalled = PETSC_FALSE;

     97:   /*
     99:     it may be called by PetscStackView().

    101:       This function does not do error checking because it is called by the error handlers.
    102:   */

    104:   if (!PetscErrorPrintfCalled) {
    105:     PetscErrorPrintfCalled = PETSC_TRUE;

    107:     /*
    108:         On the SGI machines and Cray T3E, if errors are generated  "simultaneously" by
    109:       different processors, the messages are printed all jumbled up; to try to
    110:       prevent this we have each processor wait based on their rank
    111:     */
    112: #if defined(PETSC_CAN_SLEEP_AFTER_ERROR)
    113:     {
    114:       PetscMPIInt rank;
    115:       if (PetscGlobalRank > 8) rank = 8;
    116:       else rank = PetscGlobalRank;
    117:       PetscSleep((PetscReal)rank);
    118:     }
    119: #endif
    120:   }

    122:   PetscFPrintf(PETSC_COMM_SELF,PETSC_STDERR,"[%d]PETSC ERROR: ",PetscGlobalRank);
    123:   va_start(Argp,format);
    124:   (*PetscVFPrintf)(PETSC_STDERR,format,Argp);
    125:   va_end(Argp);
    126:   return 0;
    127: }

    129: static void PetscErrorPrintfHilight(void)
    130: {
    131: #if defined(PETSC_HAVE_UNISTD_H) && defined(PETSC_USE_ISATTY)
    132:   if (PetscErrorPrintf == PetscErrorPrintfDefault) {
    133:     if (isatty(fileno(PETSC_STDERR))) fprintf(PETSC_STDERR,"\033[1;31m");
    134:   }
    135: #endif
    136: }

    138: static void PetscErrorPrintfNormal(void)
    139: {
    140: #if defined(PETSC_HAVE_UNISTD_H) && defined(PETSC_USE_ISATTY)
    141:   if (PetscErrorPrintf == PetscErrorPrintfDefault) {
    142:     if (isatty(fileno(PETSC_STDERR))) fprintf(PETSC_STDERR,"\033[0;39m\033[0;49m");
    143:   }
    144: #endif
    145: }

    147: extern PetscErrorCode  PetscOptionsViewError(void);

    151: /*@C

    153:    PetscTraceBackErrorHandler - Default error handler routine that generates
    154:    a traceback on error detection.

    156:    Not Collective

    158:    Input Parameters:
    159: +  comm - communicator over which error occurred
    160: .  line - the line number of the error (indicated by __LINE__)
    161: .  func - the function where error is detected (indicated by __FUNCT__)
    162: .  file - the file in which the error was detected (indicated by __FILE__)
    163: .  mess - an error text string, usually just printed to the screen
    164: .  n - the generic error number
    165: .  p - PETSC_ERROR_INITIAL if this is the first call the error handler, otherwise PETSC_ERROR_REPEAT
    166: -  ctx - error handler context

    168:    Level: developer

    170:    Notes:
    171:    Most users need not directly employ this routine and the other error
    172:    handlers, but can instead use the simplified interface SETERRQ, which has
    173:    the calling sequence
    174: $     SETERRQ(comm,number,n,mess)

    176:    Notes for experienced users:
    177:    Use PetscPushErrorHandler() to set the desired error handler.  The
    178:    currently available PETSc error handlers include PetscTraceBackErrorHandler(),
    179:    PetscAttachDebuggerErrorHandler(), PetscAbortErrorHandler(), and PetscMPIAbortErrorHandler()

    181:    Concepts: error handler^traceback
    182:    Concepts: traceback^generating

    184: .seealso:  PetscPushErrorHandler(), PetscAttachDebuggerErrorHandler(),
    185:           PetscAbortErrorHandler()
    186:  @*/
    187: PetscErrorCode  PetscTraceBackErrorHandler(MPI_Comm comm,int line,const char *fun,const char *file,PetscErrorCode n,PetscErrorType p,const char *mess,void *ctx)
    188: {
    189:   PetscLogDouble mem,rss;
    190:   PetscBool      flg1 = PETSC_FALSE,flg2 = PETSC_FALSE,flg3 = PETSC_FALSE;
    191:   PetscMPIInt    rank = 0;

    194:   if (comm != PETSC_COMM_SELF) MPI_Comm_rank(comm,&rank);

    196:   if (!rank) {
    197:     PetscBool  ismain,isunknown;
    198:     static int cnt = 1;

    200:     if (p == PETSC_ERROR_INITIAL) {
    201:       PetscErrorPrintfHilight();
    202:       (*PetscErrorPrintf)("--------------------- Error Message --------------------------------------------------------------\n");
    203:       PetscErrorPrintfNormal();
    204:       if (n == PETSC_ERR_MEM) {
    205:         (*PetscErrorPrintf)("Out of memory. This could be due to allocating\n");
    206:         (*PetscErrorPrintf)("too large an object or bleeding by not properly\n");
    207:         (*PetscErrorPrintf)("destroying unneeded objects.\n");
    208:         PetscMallocGetCurrentUsage(&mem);
    209:         PetscMemoryGetCurrentUsage(&rss);
    210:         PetscOptionsGetBool(NULL,"-malloc_dump",&flg1,NULL);
    211:         PetscOptionsGetBool(NULL,"-malloc_log",&flg2,NULL);
    212:         PetscOptionsHasName(NULL,"-malloc_log_threshold",&flg3);
    213:         if (flg2 || flg3) PetscMallocDumpLog(stdout);
    214:         else {
    215:           (*PetscErrorPrintf)("Memory allocated %.0f Memory used by process %.0f\n",mem,rss);
    216:           if (flg1) PetscMallocDump(stdout);
    217:           else (*PetscErrorPrintf)("Try running with -malloc_dump or -malloc_log for info.\n");
    218:         }
    219:       } else {
    220:         const char *text;
    221:         PetscErrorMessage(n,&text,NULL);
    222:         if (text) (*PetscErrorPrintf)("%s\n",text);
    223:       }
    224:       if (mess) (*PetscErrorPrintf)("%s\n",mess);
    225:       (*PetscErrorPrintf)("See http://www.mcs.anl.gov/petsc/documentation/faq.html for trouble shooting.\n");
    226:       (*PetscErrorPrintf)("%s\n",version);
    227:       if (PetscErrorPrintfInitializeCalled) (*PetscErrorPrintf)("%s on a %s named %s by %s %s\n",pname,arch,hostname,username,date);
    228:       (*PetscErrorPrintf)("Configure options %s\n",petscconfigureoptions);
    229:     }
    230:     /* print line of stack trace */
    231:     (*PetscErrorPrintf)("#%d %s() line %d in %s\n",cnt++,fun,line,file);
    232:     PetscStrncmp(fun,"main",4,&ismain);
    233:     PetscStrncmp(fun,"unknown",7,&isunknown);
    234:     if (ismain || isunknown) {
    235:       PetscOptionsViewError();
    236:       PetscErrorPrintfHilight();
    237:       (*PetscErrorPrintf)("----------------End of Error Message -------send entire error message to petsc-maint@mcs.anl.gov----------\n");
    238:       PetscErrorPrintfNormal();
    239:     }
    240:   } else {
    241:     /* do not print error messages since process 0 will print them, sleep before aborting so will not accidently kill process 0*/
    242:     PetscSleep(10.0);
    243:     abort();
    244:   }
    245:   PetscFunctionReturn(n);
    246: }