xref: /petsc/src/sys/objects/init.c (revision 2ff79c18c26c94ed8cb599682f680f231dca6444)
1 /*
2 
3    This file defines part of the initialization of PETSc
4 
5   This file uses regular malloc and free because it cannot be known
6   what malloc is being used until it has already processed the input.
7 */
8 #include <petsc/private/petscimpl.h> /*I  "petscsys.h"   I*/
9 #include <petsc/private/logimpl.h>
10 
11 #if defined(PETSC_HAVE_UNISTD_H)
12   #include <unistd.h>
13 #endif
14 
15 /* ------------------------Nasty global variables -------------------------------*/
16 /*
17      Indicates if PETSc started up MPI, or it was
18    already started before PETSc was initialized.
19 */
20 PetscBool PetscBeganMPI                 = PETSC_FALSE;
21 PetscBool PetscErrorHandlingInitialized = PETSC_FALSE;
22 PetscBool PetscInitializeCalled         = PETSC_FALSE;
23 PetscBool PetscFinalizeCalled           = PETSC_FALSE;
24 
25 PetscMPIInt PetscGlobalRank = -1;
26 PetscMPIInt PetscGlobalSize = -1;
27 
28 #if defined(PETSC_HAVE_KOKKOS)
29 PetscBool PetscBeganKokkos = PETSC_FALSE;
30 #endif
31 
32 #if defined(PETSC_HAVE_NVSHMEM)
33 PetscBool PetscBeganNvshmem       = PETSC_FALSE;
34 PetscBool PetscNvshmemInitialized = PETSC_FALSE;
35 #endif
36 
37 PetscBool use_gpu_aware_mpi = PetscDefined(HAVE_MPIUNI) ? PETSC_FALSE : PETSC_TRUE;
38 
39 PetscBool PetscPrintFunctionList = PETSC_FALSE;
40 
41 #if defined(PETSC_HAVE_COMPLEX)
42 /*MC
43    PETSC_i - the imaginary number i
44 
45    Synopsis:
46    #include <petscsys.h>
47    PetscComplex PETSC_i;
48 
49    Level: beginner
50 
51    Note:
52    Complex numbers are automatically available if PETSc located a working complex implementation
53 
54 .seealso: `PetscRealPart()`, `PetscImaginaryPart()`, `PetscRealPartComplex()`, `PetscImaginaryPartComplex()`
55 M*/
56 PetscComplex PETSC_i;
57 MPI_Datatype MPIU___COMPLEX128 = 0;
58 #endif /* PETSC_HAVE_COMPLEX */
59 #if defined(PETSC_HAVE_REAL___FLOAT128)
60 MPI_Datatype MPIU___FLOAT128 = 0;
61 #endif
62 #if defined(PETSC_HAVE_REAL___FP16)
63 MPI_Datatype MPIU___FP16 = 0;
64 #endif
65 MPI_Datatype MPIU_2SCALAR    = 0;
66 MPI_Datatype MPIU_REAL_INT   = 0;
67 MPI_Datatype MPIU_SCALAR_INT = 0;
68 #if defined(PETSC_USE_64BIT_INDICES)
69 MPI_Datatype MPIU_2INT       = 0;
70 MPI_Datatype MPIU_INT_MPIINT = 0;
71 #endif
72 MPI_Datatype MPI_4INT  = 0;
73 MPI_Datatype MPIU_4INT = 0;
74 MPI_Datatype MPIU_ENUM;
75 MPI_Datatype MPIU_FORTRANADDR;
76 MPI_Datatype MPIU_SIZE_T;
77 
78 /*
79        Function that is called to display all error messages
80 */
81 PetscErrorCode (*PetscErrorPrintf)(const char[], ...)          = PetscErrorPrintfDefault;
82 PetscErrorCode (*PetscHelpPrintf)(MPI_Comm, const char[], ...) = PetscHelpPrintfDefault;
83 PetscErrorCode (*PetscVFPrintf)(FILE *, const char[], va_list) = PetscVFPrintfDefault;
84 
85 /*
86    Optional file where all PETSc output from various prints is saved
87 */
88 PETSC_INTERN FILE *petsc_history;
89 FILE              *petsc_history = NULL;
90 
91 static PetscErrorCode PetscOpenHistoryFile(const char filename[], FILE **fd)
92 {
93   PetscMPIInt rank, size;
94   char        pfile[PETSC_MAX_PATH_LEN], pname[PETSC_MAX_PATH_LEN], fname[PETSC_MAX_PATH_LEN], date[64];
95   char        version[256];
96 
97   PetscFunctionBegin;
98   PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD, &rank));
99   if (rank == 0) {
100     char arch[10];
101 
102     PetscCall(PetscGetArchType(arch, 10));
103     PetscCall(PetscGetDate(date, 64));
104     PetscCall(PetscGetVersion(version, 256));
105     PetscCallMPI(MPI_Comm_size(PETSC_COMM_WORLD, &size));
106     if (filename) {
107       PetscCall(PetscFixFilename(filename, fname));
108     } else {
109       PetscCall(PetscGetHomeDirectory(pfile, sizeof(pfile)));
110       PetscCall(PetscStrlcat(pfile, "/.petschistory", sizeof(pfile)));
111       PetscCall(PetscFixFilename(pfile, fname));
112     }
113 
114     *fd = fopen(fname, "a");
115     PetscCheck(fd, PETSC_COMM_SELF, PETSC_ERR_FILE_OPEN, "Cannot open file: %s", fname);
116 
117     PetscCall(PetscFPrintf(PETSC_COMM_SELF, *fd, "----------------------------------------\n"));
118     PetscCall(PetscFPrintf(PETSC_COMM_SELF, *fd, "%s %s\n", version, date));
119     PetscCall(PetscGetProgramName(pname, sizeof(pname)));
120     PetscCall(PetscFPrintf(PETSC_COMM_SELF, *fd, "%s on a %s, %d proc. with options:\n", pname, arch, size));
121     PetscCall(PetscFPrintf(PETSC_COMM_SELF, *fd, "----------------------------------------\n"));
122 
123     PetscCall(PetscFFlush(*fd));
124   }
125   PetscFunctionReturn(PETSC_SUCCESS);
126 }
127 
128 PETSC_INTERN PetscErrorCode PetscCloseHistoryFile(FILE **fd)
129 {
130   PetscMPIInt rank;
131 
132   PetscFunctionBegin;
133   PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD, &rank));
134   if (rank == 0) {
135     char date[64];
136     int  err;
137 
138     PetscCall(PetscGetDate(date, sizeof(date)));
139     PetscCall(PetscFPrintf(PETSC_COMM_SELF, *fd, "----------------------------------------\n"));
140     PetscCall(PetscFPrintf(PETSC_COMM_SELF, *fd, "Finished at %s\n", date));
141     PetscCall(PetscFPrintf(PETSC_COMM_SELF, *fd, "----------------------------------------\n"));
142     PetscCall(PetscFFlush(*fd));
143     err = fclose(*fd);
144     PetscCheck(!err, PETSC_COMM_SELF, PETSC_ERR_SYS, "fclose() failed on file");
145   }
146   PetscFunctionReturn(PETSC_SUCCESS);
147 }
148 
149 /*
150    This is ugly and probably belongs somewhere else, but I want to
151   be able to put a true MPI abort error handler with command line args.
152 
153     This is so MPI errors in the debugger will leave all the stack
154   frames. The default MP_Abort() cleans up and exits thus providing no useful information
155   in the debugger hence we call abort() instead of MPI_Abort().
156 */
157 
158 static void Petsc_MPI_AbortOnError(PETSC_UNUSED MPI_Comm *comm, PetscMPIInt *flag, ...)
159 {
160   PetscFunctionBegin;
161   PetscCallContinue((*PetscErrorPrintf)("MPI error %d\n", *flag));
162   abort();
163 }
164 
165 static void Petsc_MPI_DebuggerOnError(MPI_Comm *comm, PetscMPIInt *flag, ...)
166 {
167   PetscFunctionBegin;
168   PetscCallContinue((*PetscErrorPrintf)("MPI error %d\n", *flag));
169   if (PetscAttachDebugger()) PETSCABORT(*comm, (PetscErrorCode)*flag); /* hopeless so get out */
170 }
171 
172 /*@
173   PetscEnd - Calls `PetscFinalize()` and then ends the program. This is useful if one
174   wishes a clean exit somewhere deep in the program.
175 
176   Collective on `PETSC_COMM_WORLD`
177 
178   Level: advanced
179 
180   Note:
181   See `PetscInitialize()` for more general runtime options.
182 
183 .seealso: `PetscInitialize()`, `PetscOptionsView()`, `PetscMallocDump()`, `PetscMPIDump()`, `PetscFinalize()`
184 @*/
185 PetscErrorCode PetscEnd(void)
186 {
187   PetscFunctionBegin;
188   PetscCall(PetscFinalize());
189   exit(0);
190   return PETSC_SUCCESS;
191 }
192 
193 PetscBool                   PetscOptionsPublish = PETSC_FALSE;
194 PETSC_INTERN PetscErrorCode PetscSetUseHBWMalloc_Private(void);
195 PETSC_INTERN PetscBool      petscsetmallocvisited;
196 static char                 emacsmachinename[256];
197 
198 PetscErrorCode (*PetscExternalVersionFunction)(MPI_Comm) = NULL;
199 PetscErrorCode (*PetscExternalHelpFunction)(MPI_Comm)    = NULL;
200 
201 #include <petscviewer.h>
202 
203 /*@C
204   PetscSetHelpVersionFunctions - Sets functions that print help and version information
205   before the PETSc help and version information is printed.
206 
207   No Fortran Support
208 
209   Input Parameters:
210 + help    - the help function (may be `NULL`)
211 - version - the version function (may be `NULL`)
212 
213   Level: developer
214 
215   Notes:
216   Must call BEFORE `PetscInitialize()`.
217 
218   This routine enables a "higher-level" package that uses PETSc to print its messages first and
219   control how the PETSc help messages are printed.
220 
221 .seealso: `PetscInitialize()`
222 @*/
223 PetscErrorCode PetscSetHelpVersionFunctions(PetscErrorCode (*help)(MPI_Comm), PetscErrorCode (*version)(MPI_Comm))
224 {
225   PetscFunctionBegin;
226   PetscExternalHelpFunction    = help;
227   PetscExternalVersionFunction = version;
228   PetscFunctionReturn(PETSC_SUCCESS);
229 }
230 
231 PETSC_INTERN PetscBool PetscObjectsLog;
232 
233 PETSC_INTERN PetscErrorCode PetscOptionsCheckInitial_Private(const char help[])
234 {
235   char        string[64];
236   MPI_Comm    comm = PETSC_COMM_WORLD;
237   PetscBool   flg1 = PETSC_FALSE, flg2 = PETSC_FALSE, flag, hasHelp;
238   PetscBool   checkstack = PETSC_FALSE;
239   PetscReal   si;
240   PetscInt    intensity;
241   int         i;
242   PetscMPIInt rank;
243   char        version[256];
244 
245   PetscFunctionBegin;
246   PetscCallMPI(MPI_Comm_rank(comm, &rank));
247 
248   if (PetscDefined(USE_DEBUG) && !PetscDefined(HAVE_THREADSAFETY)) checkstack = PETSC_TRUE;
249   PetscCall(PetscOptionsGetBool(NULL, NULL, "-checkstack", &checkstack, NULL));
250   PetscCall(PetscStackSetCheck(checkstack));
251 
252   PetscCall(PetscOptionsGetBool(NULL, NULL, "-checkfunctionlist", &PetscPrintFunctionList, NULL));
253 
254 #if !defined(PETSC_HAVE_THREADSAFETY)
255   if (!(PETSC_RUNNING_ON_VALGRIND)) {
256     /*
257       Setup the memory management; support for tracing malloc() usage
258     */
259     PetscBool mdebug = PETSC_FALSE, eachcall = PETSC_FALSE, initializenan = PETSC_FALSE, mlog = PETSC_FALSE;
260     PetscBool flg3 = PETSC_FALSE;
261 
262     if (PetscDefined(USE_DEBUG)) {
263       mdebug        = PETSC_TRUE;
264       initializenan = PETSC_TRUE;
265       PetscCall(PetscOptionsHasName(NULL, NULL, "-malloc_test", &flg1));
266     } else {
267       /* don't warn about unused option */
268       PetscCall(PetscOptionsHasName(NULL, NULL, "-malloc_test", &flg1));
269       flg1 = PETSC_FALSE;
270     }
271     PetscCall(PetscOptionsGetBool(NULL, NULL, "-malloc_debug", &flg2, &flg3));
272     if (flg1 || flg2) {
273       mdebug        = PETSC_TRUE;
274       eachcall      = PETSC_TRUE;
275       initializenan = PETSC_TRUE;
276     } else if (flg3 && !flg2) {
277       mdebug        = PETSC_FALSE;
278       eachcall      = PETSC_FALSE;
279       initializenan = PETSC_FALSE;
280     }
281 
282     PetscCall(PetscOptionsGetBool(NULL, NULL, "-malloc_requested_size", &flg1, &flg2));
283     if (flg2) PetscCall(PetscMallocLogRequestedSizeSet(flg1));
284 
285     PetscCall(PetscOptionsHasName(NULL, NULL, "-malloc_view", &mlog));
286     if (mlog) mdebug = PETSC_TRUE;
287     /* the next line is deprecated */
288     PetscCall(PetscOptionsGetBool(NULL, NULL, "-malloc_dump", &mdebug, NULL));
289     PetscCall(PetscOptionsGetBool(NULL, NULL, "-log_view_memory", &mdebug, NULL));
290     if (mdebug) PetscCall(PetscMallocSetDebug(eachcall, initializenan));
291     if (mlog) {
292       PetscReal logthreshold = 0;
293       PetscCall(PetscOptionsGetReal(NULL, NULL, "-malloc_view_threshold", &logthreshold, NULL));
294       PetscCall(PetscMallocViewSet(logthreshold));
295     }
296     PetscCall(PetscOptionsGetBool(NULL, NULL, "-log_view_memory", &PetscLogMemory, NULL));
297   }
298 
299   PetscCall(PetscOptionsGetBool(NULL, NULL, "-malloc_coalesce", &flg1, &flg2));
300   if (flg2) PetscCall(PetscMallocSetCoalesce(flg1));
301   flg1 = PETSC_FALSE;
302   PetscCall(PetscOptionsGetBool(NULL, NULL, "-malloc_hbw", &flg1, NULL));
303   /* ignore this option if malloc is already set */
304   if (flg1 && !petscsetmallocvisited) PetscCall(PetscSetUseHBWMalloc_Private());
305 
306   flg1 = PETSC_FALSE;
307   PetscCall(PetscOptionsGetBool(NULL, NULL, "-memory_view", &flg1, NULL));
308   if (flg1) PetscCall(PetscMemorySetGetMaximumUsage());
309 #endif
310 
311   PetscCall(PetscOptionsHasName(NULL, NULL, "-objects_dump", &PetscObjectsLog));
312 
313   /*
314       Set the display variable for graphics
315   */
316   PetscCall(PetscSetDisplay());
317 
318   /*
319      Print main application help message
320   */
321   PetscCall(PetscOptionsHasHelp(NULL, &hasHelp));
322   if (help && hasHelp) {
323     PetscCall(PetscPrintf(comm, "%s", help));
324     PetscCall(PetscPrintf(comm, "----------------------------------------\n"));
325   }
326 
327   /*
328       Print the PETSc version information
329   */
330   PetscCall(PetscOptionsHasName(NULL, NULL, "-version", &flg1));
331   if (flg1 || hasHelp) {
332     /*
333        Print "higher-level" package version message
334     */
335     if (PetscExternalVersionFunction) PetscCall((*PetscExternalVersionFunction)(comm));
336 
337     PetscCall(PetscGetVersion(version, 256));
338     if (!PetscCIEnabledPortableErrorOutput) PetscCall((*PetscHelpPrintf)(comm, "%s\n", version));
339     PetscCall((*PetscHelpPrintf)(comm, "%s", PETSC_AUTHOR_INFO));
340     PetscCall((*PetscHelpPrintf)(comm, "See https://petsc.org/release/changes for recent updates.\n"));
341     PetscCall((*PetscHelpPrintf)(comm, "See https://petsc.org/release/faq for problems.\n"));
342     PetscCall((*PetscHelpPrintf)(comm, "See https://petsc.org/release/manualpages for help.\n"));
343     if (!PetscCIEnabledPortableErrorOutput) PetscCall((*PetscHelpPrintf)(comm, "Libraries linked from %s\n", PETSC_LIB_DIR));
344     PetscCall((*PetscHelpPrintf)(comm, "----------------------------------------\n"));
345   }
346 
347   /*
348        Print "higher-level" package help message
349   */
350   if (hasHelp) {
351     PetscBool hasHelpIntro;
352 
353     if (PetscExternalHelpFunction) PetscCall((*PetscExternalHelpFunction)(comm));
354     PetscCall(PetscOptionsHasHelpIntro_Internal(NULL, &hasHelpIntro));
355     if (hasHelpIntro) {
356       PetscCall(PetscOptionsDestroyDefault());
357       PetscCall(PetscFreeMPIResources());
358       PetscCallMPI(MPI_Finalize());
359       exit(0);
360     }
361   }
362 
363   /*
364       Setup the error handling
365   */
366   flg1 = PETSC_FALSE;
367   PetscCall(PetscOptionsGetBool(NULL, NULL, "-on_error_abort", &flg1, NULL));
368   if (flg1) {
369     PetscCallMPI(MPI_Comm_set_errhandler(comm, MPI_ERRORS_ARE_FATAL));
370     PetscCall(PetscPushErrorHandler(PetscAbortErrorHandler, NULL));
371   }
372   flg1 = PETSC_FALSE;
373   PetscCall(PetscOptionsGetBool(NULL, NULL, "-on_error_mpiabort", &flg1, NULL));
374   if (flg1) PetscCall(PetscPushErrorHandler(PetscMPIAbortErrorHandler, NULL));
375   flg1 = PETSC_FALSE;
376   PetscCall(PetscOptionsGetBool(NULL, NULL, "-mpi_return_on_error", &flg1, NULL));
377   if (flg1) PetscCallMPI(MPI_Comm_set_errhandler(comm, MPI_ERRORS_RETURN));
378   flg1 = PETSC_FALSE;
379   PetscCall(PetscOptionsGetBool(NULL, NULL, "-no_signal_handler", &flg1, NULL));
380   if (!flg1) PetscCall(PetscPushSignalHandler(PetscSignalHandlerDefault, NULL));
381 
382   /*
383       Setup debugger information
384   */
385   PetscCall(PetscSetDefaultDebugger());
386   PetscCall(PetscOptionsGetString(NULL, NULL, "-on_error_attach_debugger", string, sizeof(string), &flg1));
387   if (flg1) {
388     MPI_Errhandler err_handler;
389 
390     PetscCall(PetscSetDebuggerFromString(string));
391     PetscCallMPI(MPI_Comm_create_errhandler(Petsc_MPI_DebuggerOnError, &err_handler));
392     PetscCallMPI(MPI_Comm_set_errhandler(comm, err_handler));
393     PetscCall(PetscPushErrorHandler(PetscAttachDebuggerErrorHandler, NULL));
394   }
395   PetscCall(PetscOptionsGetString(NULL, NULL, "-debug_terminal", string, sizeof(string), &flg1));
396   if (flg1) PetscCall(PetscSetDebugTerminal(string));
397   PetscCall(PetscOptionsGetString(NULL, NULL, "-start_in_debugger", string, sizeof(string), &flg1));
398   PetscCall(PetscOptionsGetString(NULL, NULL, "-stop_for_debugger", string, sizeof(string), &flg2));
399   if (flg1 || flg2) {
400     PetscMPIInt    size;
401     PetscInt       lsize, *ranks;
402     MPI_Errhandler err_handler;
403     /*
404        we have to make sure that all processors have opened
405        connections to all other processors, otherwise once the
406        debugger has stated it is likely to receive a SIGUSR1
407        and kill the program.
408     */
409     PetscCallMPI(MPI_Comm_size(comm, &size));
410     if (size > 2) {
411       PetscMPIInt dummy = 0;
412       MPI_Status  status;
413       for (i = 0; i < size; i++) {
414         if (rank != i) PetscCallMPI(MPI_Send(&dummy, 1, MPI_INT, i, 109, comm));
415       }
416       for (i = 0; i < size; i++) {
417         if (rank != i) PetscCallMPI(MPI_Recv(&dummy, 1, MPI_INT, i, 109, comm, &status));
418       }
419     }
420     /* check if this processor node should be in debugger */
421     PetscCall(PetscMalloc1(size, &ranks));
422     lsize = size;
423     /* Deprecated in 3.14 */
424     PetscCall(PetscOptionsGetIntArray(NULL, NULL, "-debugger_nodes", ranks, &lsize, &flag));
425     if (flag) {
426       const char *const quietopt = "-options_suppress_deprecated_warnings";
427       char              msg[4096];
428       PetscBool         quiet = PETSC_FALSE;
429 
430       PetscCall(PetscOptionsGetBool(NULL, NULL, quietopt, &quiet, NULL));
431       if (!quiet) {
432         PetscCall(PetscStrncpy(msg, "** PETSc DEPRECATION WARNING ** : the option ", sizeof(msg)));
433         PetscCall(PetscStrlcat(msg, "-debugger_nodes", sizeof(msg)));
434         PetscCall(PetscStrlcat(msg, " is deprecated as of version ", sizeof(msg)));
435         PetscCall(PetscStrlcat(msg, "3.14", sizeof(msg)));
436         PetscCall(PetscStrlcat(msg, " and will be removed in a future release.", sizeof(msg)));
437         PetscCall(PetscStrlcat(msg, " Please use the option ", sizeof(msg)));
438         PetscCall(PetscStrlcat(msg, "-debugger_ranks", sizeof(msg)));
439         PetscCall(PetscStrlcat(msg, " instead.", sizeof(msg)));
440         PetscCall(PetscStrlcat(msg, " (Silence this warning with ", sizeof(msg)));
441         PetscCall(PetscStrlcat(msg, quietopt, sizeof(msg)));
442         PetscCall(PetscStrlcat(msg, ")\n", sizeof(msg)));
443         PetscCall(PetscPrintf(comm, "%s", msg));
444       }
445     } else {
446       lsize = size;
447       PetscCall(PetscOptionsGetIntArray(NULL, NULL, "-debugger_ranks", ranks, &lsize, &flag));
448     }
449     if (flag) {
450       for (i = 0; i < lsize; i++) {
451         if (ranks[i] == rank) {
452           flag = PETSC_FALSE;
453           break;
454         }
455       }
456     }
457     if (!flag) {
458       PetscCall(PetscSetDebuggerFromString(string));
459       PetscCall(PetscPushErrorHandler(PetscAbortErrorHandler, NULL));
460       if (flg1) {
461         PetscCall(PetscAttachDebugger());
462       } else {
463         PetscCall(PetscStopForDebugger());
464       }
465       PetscCallMPI(MPI_Comm_create_errhandler(Petsc_MPI_AbortOnError, &err_handler));
466       PetscCallMPI(MPI_Comm_set_errhandler(comm, err_handler));
467     } else {
468       PetscCall(PetscWaitOnError());
469     }
470     PetscCall(PetscFree(ranks));
471   }
472 
473   PetscCall(PetscOptionsGetString(NULL, NULL, "-on_error_emacs", emacsmachinename, sizeof(emacsmachinename), &flg1));
474   if (flg1 && rank == 0) PetscCall(PetscPushErrorHandler(PetscEmacsClientErrorHandler, emacsmachinename));
475 
476   /*
477         Setup profiling and logging
478   */
479   if (PetscDefined(USE_LOG)) PetscCall(PetscInfoSetFromOptions(NULL));
480   PetscCall(PetscDetermineInitialFPTrap());
481   flg1 = PETSC_FALSE;
482   PetscCall(PetscOptionsGetBool(NULL, NULL, "-fp_trap", &flg1, &flag));
483   if (flag) PetscCall(PetscSetFPTrap(flg1 ? PETSC_FP_TRAP_ON : PETSC_FP_TRAP_OFF));
484   PetscCall(PetscOptionsGetInt(NULL, NULL, "-check_pointer_intensity", &intensity, &flag));
485   if (flag) PetscCall(PetscCheckPointerSetIntensity(intensity));
486   if (PetscDefined(USE_LOG)) {
487     char              mname[PETSC_MAX_PATH_LEN];
488     PetscInt          n_max = PETSC_LOG_VIEW_FROM_OPTIONS_MAX;
489     PetscViewerFormat format[PETSC_LOG_VIEW_FROM_OPTIONS_MAX];
490     PetscBool         ci_log = PetscCIEnabled;
491 
492     mname[0] = 0;
493     PetscCall(PetscOptionsGetString(NULL, NULL, "-history", mname, sizeof(mname), &flg1));
494     if (flg1) {
495       if (mname[0]) {
496         PetscCall(PetscOpenHistoryFile(mname, &petsc_history));
497       } else {
498         PetscCall(PetscOpenHistoryFile(NULL, &petsc_history));
499       }
500     }
501 
502     if (ci_log) {
503       static const char *LogOptions[] = {"-log_view", "-log_mpe", "-log_perfstubs", "-log_nvtx", "-log_roctx", "-log", "-log_all"};
504 
505       for (size_t i = 0; i < PETSC_STATIC_ARRAY_LENGTH(LogOptions); i++) {
506         PetscCall(PetscOptionsHasName(NULL, NULL, LogOptions[i], &flg1));
507         if (flg1) {
508           ci_log = PETSC_FALSE;
509           break;
510         }
511       }
512     }
513     if (ci_log) PetscLogSyncOn = PETSC_TRUE;
514     PetscCall(PetscOptionsGetBool(NULL, NULL, "-log_sync", &PetscLogSyncOn, NULL));
515 
516     if (PetscDefined(HAVE_MPE)) {
517       flg1 = PETSC_FALSE;
518       PetscCall(PetscOptionsHasName(NULL, NULL, "-log_mpe", &flg1));
519       if (flg1) PetscCall(PetscLogMPEBegin());
520     }
521     if (PetscDefined(HAVE_TAU_PERFSTUBS)) {
522       char     *tau_exec_path       = getenv("TAU_EXEC_PATH");
523       PetscBool start_log_perfstubs = (tau_exec_path != NULL) ? PETSC_TRUE : PETSC_FALSE;
524 
525       if (tau_exec_path && !PetscGlobalRank) PetscCall(PetscInfo(NULL, "Detected tau_exec path %s\n", tau_exec_path));
526       PetscCall(PetscOptionsGetBool(NULL, NULL, "-log_perfstubs", &start_log_perfstubs, NULL));
527       if (start_log_perfstubs) PetscCall(PetscLogPerfstubsBegin());
528     }
529     if (PetscDefined(USE_LOG) && PetscDefined(HAVE_CUDA)) {
530       char     *nsys_profiling_session_id = getenv("NSYS_PROFILING_SESSION_ID");
531       char     *nvprof_id                 = getenv("NVPROF_ID");
532       PetscBool start_log_nvtx            = ((nsys_profiling_session_id != NULL) || (nvprof_id != NULL)) ? PETSC_TRUE : PETSC_FALSE;
533 
534       if (nsys_profiling_session_id && !PetscGlobalRank) PetscCall(PetscInfo(NULL, "Detected nsys profiling session id %s\n", nsys_profiling_session_id));
535       if (nvprof_id && !PetscGlobalRank) PetscCall(PetscInfo(NULL, "Detected nvprof session id %s\n", nvprof_id));
536       PetscCall(PetscOptionsGetBool(NULL, NULL, "-log_nvtx", &start_log_nvtx, NULL));
537       if (start_log_nvtx) PetscCall(PetscLogTypeBegin(PETSCLOGHANDLERNVTX));
538     }
539     if (PetscDefined(USE_LOG) && PetscDefined(HAVE_ROCTX)) {
540       char     *rocprof_roctx_trace  = getenv("ROCPROFILER_ROCTX_TRACE");
541       char     *rocprof_marker_trace = getenv("ROCPROF_MARKER_API_TRACE");
542       PetscBool start_log_roctx      = ((rocprof_roctx_trace != NULL) || (rocprof_marker_trace != NULL)) ? PETSC_TRUE : PETSC_FALSE;
543 
544       if (rocprof_roctx_trace && !PetscGlobalRank) PetscCall(PetscInfo(NULL, "Detected rocprofv2 profiling session\n"));
545       if (rocprof_marker_trace && !PetscGlobalRank) PetscCall(PetscInfo(NULL, "Detected rocprofv3 profiling session\n"));
546       PetscCall(PetscOptionsGetBool(NULL, NULL, "-log_roctx", &start_log_roctx, NULL));
547       if (start_log_roctx) PetscCall(PetscLogTypeBegin(PETSCLOGHANDLERROCTX));
548     }
549     flg1 = PETSC_FALSE;
550     PetscCall(PetscOptionsGetBool(NULL, NULL, "-log_all", &flg1, NULL));
551     PetscCall(PetscOptionsGetBool(NULL, NULL, "-log", &flg2, NULL));
552     if (flg1 || flg2 || ci_log) PetscCall(PetscLogDefaultBegin());
553 
554     PetscCall(PetscOptionsGetString(NULL, NULL, "-log_trace", mname, sizeof(mname), &flg1));
555     if (flg1) {
556       char  name[PETSC_MAX_PATH_LEN], fname[PETSC_MAX_PATH_LEN];
557       FILE *file;
558       if (mname[0]) {
559         PetscCall(PetscSNPrintf(name, PETSC_MAX_PATH_LEN, "%s.%d", mname, rank));
560         PetscCall(PetscFixFilename(name, fname));
561         file = fopen(fname, "w");
562         PetscCheck(file, PETSC_COMM_SELF, PETSC_ERR_FILE_OPEN, "Unable to open trace file: %s", fname);
563       } else file = PETSC_STDOUT;
564       PetscCall(PetscLogTraceBegin(file));
565     }
566 
567     PetscCall(PetscOptionsCreateViewers(comm, NULL, NULL, "-log_view", &n_max, NULL, format, NULL));
568     if (n_max > 0) {
569       PetscBool any_nested  = PETSC_FALSE;
570       PetscBool any_default = PETSC_FALSE;
571 
572       for (PetscInt i = 0; i < n_max; i++) {
573         if (format[i] == PETSC_VIEWER_ASCII_XML || format[i] == PETSC_VIEWER_ASCII_FLAMEGRAPH) {
574           any_nested = PETSC_TRUE;
575         } else {
576           any_default = PETSC_TRUE;
577         }
578       }
579       if (any_default) PetscCall(PetscLogDefaultBegin());
580       if (any_nested) {
581         PetscCall(PetscLogNestedBegin());
582         PetscReal threshold = PetscRealConstant(0.01);
583         PetscCall(PetscOptionsGetReal(NULL, NULL, "-log_threshold", &threshold, &flg1));
584         if (flg1) PetscCall(PetscLogSetThreshold((PetscLogDouble)threshold, NULL));
585       }
586     }
587   }
588 
589   PetscCall(PetscOptionsGetBool(NULL, NULL, "-saws_options", &PetscOptionsPublish, NULL));
590   PetscCall(PetscOptionsGetBool(NULL, NULL, "-use_gpu_aware_mpi", &use_gpu_aware_mpi, &flg1));
591   if (!flg1) PetscCall(PetscOptionsGetBool(NULL, NULL, "-sf_use_gpu_aware_mpi", &use_gpu_aware_mpi, &flg1)); // an alias option
592 
593   /*
594        Print basic help message
595   */
596   if (hasHelp) {
597     PetscCall((*PetscHelpPrintf)(comm, "Options for all PETSc programs:\n"));
598     PetscCall((*PetscHelpPrintf)(comm, " -version: prints PETSc version\n"));
599     PetscCall((*PetscHelpPrintf)(comm, " -help intro: prints example description and PETSc version, and exits\n"));
600     PetscCall((*PetscHelpPrintf)(comm, " -help: prints example description, PETSc version, and available options for used routines\n"));
601     PetscCall((*PetscHelpPrintf)(comm, " -on_error_abort: cause an abort when an error is detected. Useful \n "));
602     PetscCall((*PetscHelpPrintf)(comm, "       only when run in the debugger\n"));
603     PetscCall((*PetscHelpPrintf)(comm, " -on_error_attach_debugger [gdb,dbx,xxgdb,ups,noxterm]\n"));
604     PetscCall((*PetscHelpPrintf)(comm, "       start the debugger in new xterm\n"));
605     PetscCall((*PetscHelpPrintf)(comm, "       unless noxterm is given\n"));
606     PetscCall((*PetscHelpPrintf)(comm, " -start_in_debugger [gdb,dbx,xxgdb,ups,noxterm]\n"));
607     PetscCall((*PetscHelpPrintf)(comm, "       start all processes in the debugger\n"));
608     PetscCall((*PetscHelpPrintf)(comm, " -on_error_emacs <machinename>\n"));
609     PetscCall((*PetscHelpPrintf)(comm, "    emacs jumps to error file\n"));
610     PetscCall((*PetscHelpPrintf)(comm, " -debugger_ranks [n1,n2,..] Ranks to start in debugger\n"));
611     PetscCall((*PetscHelpPrintf)(comm, " -debugger_pause [m] : delay (in seconds) to attach debugger\n"));
612     PetscCall((*PetscHelpPrintf)(comm, " -stop_for_debugger : prints message on how to attach debugger manually\n"));
613     PetscCall((*PetscHelpPrintf)(comm, "                      waits the delay for you to attach\n"));
614     PetscCall((*PetscHelpPrintf)(comm, " -display display: Location where X window graphics and debuggers are displayed\n"));
615     PetscCall((*PetscHelpPrintf)(comm, " -no_signal_handler: do not trap error signals\n"));
616     PetscCall((*PetscHelpPrintf)(comm, " -mpi_return_on_error: MPI returns error code, rather than abort on internal error\n"));
617     PetscCall((*PetscHelpPrintf)(comm, " -fp_trap: stop on floating point exceptions\n"));
618     PetscCall((*PetscHelpPrintf)(comm, "           note on IBM RS6000 this slows run greatly\n"));
619     PetscCall((*PetscHelpPrintf)(comm, " -malloc_dump <optional filename>: dump list of unfreed memory at conclusion\n"));
620     PetscCall((*PetscHelpPrintf)(comm, " -on_error_malloc_dump <optional filename>: dump list of unfreed memory on memory error\n"));
621     PetscCall((*PetscHelpPrintf)(comm, " -malloc_view <optional filename>: keeps log of all memory allocations, displays in PetscFinalize()\n"));
622     PetscCall((*PetscHelpPrintf)(comm, " -malloc_debug <true or false>: enables or disables extended checking for memory corruption\n"));
623     PetscCall((*PetscHelpPrintf)(comm, " -options_view: dump list of options inputted\n"));
624     PetscCall((*PetscHelpPrintf)(comm, " -options_left: dump list of unused options\n"));
625     PetscCall((*PetscHelpPrintf)(comm, " -options_left no: don't dump list of unused options\n"));
626     PetscCall((*PetscHelpPrintf)(comm, " -tmp tmpdir: alternative /tmp directory\n"));
627     PetscCall((*PetscHelpPrintf)(comm, " -shared_tmp: tmp directory is shared by all processors\n"));
628     PetscCall((*PetscHelpPrintf)(comm, " -not_shared_tmp: each processor has separate tmp directory\n"));
629     PetscCall((*PetscHelpPrintf)(comm, " -memory_view: print memory usage at end of run\n"));
630 #if defined(PETSC_USE_LOG)
631     PetscCall((*PetscHelpPrintf)(comm, " -get_total_flops: total flops over all processors\n"));
632     PetscCall((*PetscHelpPrintf)(comm, " -log_view [:filename:[format]]: logging objects and events\n"));
633     PetscCall((*PetscHelpPrintf)(comm, " -log_trace [filename]: prints trace of all PETSc calls\n"));
634     PetscCall((*PetscHelpPrintf)(comm, " -log_exclude <list,of,classnames>: exclude given classes from logging\n"));
635   #if defined(PETSC_HAVE_DEVICE)
636     PetscCall((*PetscHelpPrintf)(comm, " -log_view_gpu_time: log the GPU time for each and event\n"));
637   #endif
638   #if defined(PETSC_HAVE_MPE)
639     PetscCall((*PetscHelpPrintf)(comm, " -log_mpe: Also create logfile viewable through Jumpshot\n"));
640   #endif
641   #if PetscDefined(HAVE_CUDA)
642     PetscCall((*PetscHelpPrintf)(comm, " -log_nvtx: Create nvtx event ranges for Nsight\n"));
643   #endif
644   #if PetscDefined(HAVE_HIP)
645     PetscCall((*PetscHelpPrintf)(comm, " -log_roctx: Create roctx event ranges for rocprof\n"));
646   #endif
647 #endif
648 #if defined(PETSC_USE_INFO)
649     PetscCall((*PetscHelpPrintf)(comm, " -info [filename][:[~]<list,of,classnames>[:[~]self]]: print verbose information\n"));
650 #endif
651     PetscCall((*PetscHelpPrintf)(comm, " -options_file <file>: reads options from file\n"));
652     PetscCall((*PetscHelpPrintf)(comm, " -options_monitor: monitor options to standard output, including that set previously e.g. in option files\n"));
653     PetscCall((*PetscHelpPrintf)(comm, " -options_monitor_cancel: cancels all hardwired option monitors\n"));
654     PetscCall((*PetscHelpPrintf)(comm, " -petsc_sleep n: sleeps n seconds before running program\n"));
655   }
656 
657 #if defined(PETSC_HAVE_POPEN)
658   {
659     char machine[128];
660     PetscCall(PetscOptionsGetString(NULL, NULL, "-popen_machine", machine, sizeof(machine), &flg1));
661     if (flg1) PetscCall(PetscPOpenSetMachine(machine));
662   }
663 #endif
664 
665   PetscCall(PetscOptionsGetReal(NULL, NULL, "-petsc_sleep", &si, &flg1));
666   if (flg1) PetscCall(PetscSleep(si));
667   PetscFunctionReturn(PETSC_SUCCESS);
668 }
669