Actual source code: errtrace.c

petsc-3.5.2 2014-09-08
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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: }


150: /*@C

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

155:    Not Collective

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

167:    Level: developer

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

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

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

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

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

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

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