Actual source code: pstack.c
2: #include <petsc/private/petscimpl.h>
4: #if PetscDefined(USE_DEBUG)
5: PetscStack petscstack;
6: #endif
8: #if defined(PETSC_HAVE_SAWS)
9: #include <petscviewersaws.h>
11: static PetscBool amsmemstack = PETSC_FALSE;
13: /*@C
14: PetscStackSAWsGrantAccess - Grants access of the PETSc stack frames to the SAWs publisher
16: Collective on PETSC_COMM_WORLD?
18: Level: developer
22: .seealso: PetscObjectSetName(), PetscObjectSAWsViewOff(), PetscObjectSAWsTakeAccess()
24: @*/
25: void PetscStackSAWsGrantAccess(void)
26: {
27: if (amsmemstack) {
28: /* ignore any errors from SAWs */
29: SAWs_Unlock();
30: }
31: }
33: /*@C
34: PetscStackSAWsTakeAccess - Takes access of the PETSc stack frames to the SAWs publisher
36: Collective on PETSC_COMM_WORLD?
38: Level: developer
42: .seealso: PetscObjectSetName(), PetscObjectSAWsViewOff(), PetscObjectSAWsTakeAccess()
44: @*/
45: void PetscStackSAWsTakeAccess(void)
46: {
47: if (amsmemstack) {
48: /* ignore any errors from SAWs */
49: SAWs_Lock();
50: }
51: }
53: PetscErrorCode PetscStackViewSAWs(void)
54: {
55: PetscMPIInt rank;
57: MPI_Comm_rank(PETSC_COMM_WORLD,&rank);
58: if (rank) return 0;
59: #if PetscDefined(USE_DEBUG)
60: PetscStackCallSAWs(SAWs_Register,("/PETSc/Stack/functions",petscstack.function,20,SAWs_READ,SAWs_STRING));
61: PetscStackCallSAWs(SAWs_Register,("/PETSc/Stack/__current_size",&petscstack.currentsize,1,SAWs_READ,SAWs_INT));
62: #endif
63: amsmemstack = PETSC_TRUE;
64: return 0;
65: }
67: PetscErrorCode PetscStackSAWsViewOff(void)
68: {
69: if (!amsmemstack) return 0;
70: PetscStackCallSAWs(SAWs_Delete,("/PETSc/Stack"));
71: amsmemstack = PETSC_FALSE;
72: return 0;
73: }
74: #endif /* PETSC_HAVE_SAWS */
76: #if PetscDefined(USE_DEBUG)
77: PetscErrorCode PetscStackSetCheck(PetscBool check)
78: {
79: petscstack.check = check;
80: return 0;
81: }
83: PetscErrorCode PetscStackReset(void)
84: {
85: memset(&petscstack,0,sizeof(petscstack));
86: return 0;
87: }
89: PetscErrorCode PetscStackView(FILE *file)
90: {
91: if (!file) file = PETSC_STDOUT;
92: if (petscstack.currentsize < 0) {
93: /* < 0 is absolutely a corrupted stack, but this function is usually called in an error
94: * handler, which are not capable of recovering from errors so best we can do is print
95: * this warning */
96: fprintf(file,"PetscStack is definitely corrupted with stack size %d\n",petscstack.currentsize);
97: } else if (petscstack.currentsize == 0) {
98: if (file == PETSC_STDOUT) {
99: (*PetscErrorPrintf)("No error traceback is available, the problem could be in the main program. \n");
100: } else {
101: fprintf(file,"No error traceback is available, the problem could be in the main program. \n");
102: }
103: } else {
104: if (file == PETSC_STDOUT) {
105: (*PetscErrorPrintf)("The EXACT line numbers in the error traceback are not available.\n");
106: (*PetscErrorPrintf)("instead the line number of the start of the function is given.\n");
107: for (int i = petscstack.currentsize-1, j = 1; i >= 0; --i, ++j) {
108: (*PetscErrorPrintf)("#%d %s() at %s:%d\n",j,petscstack.function[i],petscstack.file[i],petscstack.line[i]);
109: }
110: } else {
111: fprintf(file,"The EXACT line numbers in the error traceback are not available.\n");
112: fprintf(file,"Instead the line number of the start of the function is given.\n");
113: for (int i = petscstack.currentsize-1, j = 1; i >= 0; --i, ++j) {
114: fprintf(file,"[%d] #%d %s() at %s:%d\n",PetscGlobalRank,j,petscstack.function[i],petscstack.file[i],petscstack.line[i]);
115: }
116: }
117: }
118: return 0;
119: }
121: PetscErrorCode PetscStackCopy(PetscStack *sint,PetscStack *sout)
122: {
123: if (sint) {
124: for (int i = 0; i < sint->currentsize; ++i) {
125: sout->function[i] = sint->function[i];
126: sout->file[i] = sint->file[i];
127: sout->line[i] = sint->line[i];
128: sout->petscroutine[i] = sint->petscroutine[i];
129: }
130: sout->currentsize = sint->currentsize;
131: } else {
132: sout->currentsize = 0;
133: }
134: return 0;
135: }
137: PetscErrorCode PetscStackPrint(PetscStack *sint,FILE *fp)
138: {
139: if (sint) {
140: for (int i = sint->currentsize-2; i >= 0; --i) {
141: fprintf(fp," [%d] %s() at %s:%d\n",PetscGlobalRank,sint->function[i],sint->file[i],sint->line[i]);
142: }
143: }
144: return 0;
145: }
146: #endif /* PetscDefined(USE_DEBUG) */