xref: /petsc/include/petscerror.h (revision 986eef2ebb1f617d2b91aaf2cbc48a3bd43a994c)
1 /*
2     Contains all error handling interfaces for PETSc.
3 */
4 #if !defined(__PETSCERROR_H)
5 #define __PETSCERROR_H
6 
7 /*
8      These are the generic error codes. These error codes are used
9      many different places in the PETSc source code. The string versions are
10      at src/sys/error/err.c any changes here must also be made there
11      These are also define in include/petsc/finclude/petscerror.h any CHANGES here
12      must be also made there.
13 
14 */
15 #define PETSC_ERR_MIN_VALUE        54   /* should always be one less then the smallest value */
16 
17 #define PETSC_ERR_MEM              55   /* unable to allocate requested memory */
18 #define PETSC_ERR_SUP              56   /* no support for requested operation */
19 #define PETSC_ERR_SUP_SYS          57   /* no support for requested operation on this computer system */
20 #define PETSC_ERR_ORDER            58   /* operation done in wrong order */
21 #define PETSC_ERR_SIG              59   /* signal received */
22 #define PETSC_ERR_FP               72   /* floating point exception */
23 #define PETSC_ERR_COR              74   /* corrupted PETSc object */
24 #define PETSC_ERR_LIB              76   /* error in library called by PETSc */
25 #define PETSC_ERR_PLIB             77   /* PETSc library generated inconsistent data */
26 #define PETSC_ERR_MEMC             78   /* memory corruption */
27 #define PETSC_ERR_CONV_FAILED      82   /* iterative method (KSP or SNES) failed */
28 #define PETSC_ERR_USER             83   /* user has not provided needed function */
29 #define PETSC_ERR_SYS              88   /* error in system call */
30 #define PETSC_ERR_POINTER          70   /* pointer does not point to valid address */
31 #define PETSC_ERR_MPI_LIB_INCOMP   87   /* MPI library at runtime is not compatible with MPI user compiled with */
32 
33 #define PETSC_ERR_ARG_SIZ          60   /* nonconforming object sizes used in operation */
34 #define PETSC_ERR_ARG_IDN          61   /* two arguments not allowed to be the same */
35 #define PETSC_ERR_ARG_WRONG        62   /* wrong argument (but object probably ok) */
36 #define PETSC_ERR_ARG_CORRUPT      64   /* null or corrupted PETSc object as argument */
37 #define PETSC_ERR_ARG_OUTOFRANGE   63   /* input argument, out of range */
38 #define PETSC_ERR_ARG_BADPTR       68   /* invalid pointer argument */
39 #define PETSC_ERR_ARG_NOTSAMETYPE  69   /* two args must be same object type */
40 #define PETSC_ERR_ARG_NOTSAMECOMM  80   /* two args must be same communicators */
41 #define PETSC_ERR_ARG_WRONGSTATE   73   /* object in argument is in wrong state, e.g. unassembled mat */
42 #define PETSC_ERR_ARG_TYPENOTSET   89   /* the type of the object has not yet been set */
43 #define PETSC_ERR_ARG_INCOMP       75   /* two arguments are incompatible */
44 #define PETSC_ERR_ARG_NULL         85   /* argument is null that should not be */
45 #define PETSC_ERR_ARG_UNKNOWN_TYPE 86   /* type name doesn't match any registered type */
46 
47 #define PETSC_ERR_FILE_OPEN        65   /* unable to open file */
48 #define PETSC_ERR_FILE_READ        66   /* unable to read from file */
49 #define PETSC_ERR_FILE_WRITE       67   /* unable to write to file */
50 #define PETSC_ERR_FILE_UNEXPECTED  79   /* unexpected data in file */
51 
52 #define PETSC_ERR_MAT_LU_ZRPVT     71   /* detected a zero pivot during LU factorization */
53 #define PETSC_ERR_MAT_CH_ZRPVT     81   /* detected a zero pivot during Cholesky factorization */
54 
55 #define PETSC_ERR_INT_OVERFLOW     84
56 
57 #define PETSC_ERR_FLOP_COUNT       90
58 #define PETSC_ERR_NOT_CONVERGED    91  /* solver did not converge */
59 #define PETSC_ERR_MISSING_FACTOR   92  /* MatGetFactor() failed */
60 #define PETSC_ERR_OPT_OVERWRITE    93  /* attempted to over wrote options which should not be changed */
61 
62 #define PETSC_ERR_MAX_VALUE        94  /* this is always the one more than the largest error code */
63 
64 #define PetscStringizeArg(a) #a
65 #define PetscStringize(a) PetscStringizeArg(a)
66 
67 
68 /*MC
69    SETERRQ - Macro to be called when an error has been detected,
70 
71    Synopsis:
72    #include <petscsys.h>
73    PetscErrorCode SETERRQ(MPI_Comm comm,PetscErrorCode ierr,char *message)
74 
75    Collective on MPI_Comm
76 
77    Input Parameters:
78 +  comm - A communicator, use PETSC_COMM_SELF unless you know all ranks of another communicator will detect the error
79 .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
80 -  message - error message
81 
82   Level: beginner
83 
84    Notes:
85     Once the error handler is called the calling function is then returned from with the given error code.
86 
87     See SETERRQ1(), SETERRQ2(), SETERRQ3() for versions that take arguments
88 
89     Experienced users can set the error handler with PetscPushErrorHandler().
90 
91    Concepts: error^setting condition
92 
93 .seealso: PetscTraceBackErrorHandler(), PetscPushErrorHandler(), PetscError(), CHKERRQ(), CHKMEMQ, SETERRQ1(), SETERRQ2(), SETERRQ3()
94 M*/
95 #define SETERRQ(comm,ierr,s) return PetscError(comm,__LINE__,PETSC_FUNCTION_NAME,__FILE__,ierr,PETSC_ERROR_INITIAL,s)
96 
97 /*MC
98    SETERRMPI - Macro to be called when an error has been detected within an MPI callback function
99 
100    Synopsis:
101    #include <petscsys.h>
102    PetscErrorCode SETERRMPI(MPI_Comm comm,PetscErrorCode ierr,char *message)
103 
104    Collective on MPI_Comm
105 
106    Input Parameters:
107 +  comm - A communicator, use PETSC_COMM_SELF unless you know all ranks of another communicator will detect the error
108 .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
109 -  message - error message
110 
111   Level: developer
112 
113    Notes:
114     This macro is FOR USE IN MPI CALLBACK FUNCTIONS ONLY, such as those passed to MPI_Comm_create_keyval(). It always returns the error code PETSC_MPI_ERROR_CODE
115     which is registered with MPI_Add_error_code() when PETSc is initialized.
116 
117    Concepts: error^setting condition
118 
119 .seealso: SETERRQ(), CHKERRQ(), CHKERRMPI(), PetscTraceBackErrorHandler(), PetscPushErrorHandler(), PetscError(), CHKERRQ(), CHKMEMQ, SETERRQ1(), SETERRQ2(), SETERRQ3()
120 M*/
121 #define SETERRMPI(comm,ierr,s) return (PetscError(comm,__LINE__,PETSC_FUNCTION_NAME,__FILE__,ierr,PETSC_ERROR_INITIAL,s),PETSC_MPI_ERROR_CODE)
122 
123 /*MC
124    SETERRQ1 - Macro that is called when an error has been detected,
125 
126    Synopsis:
127    #include <petscsys.h>
128    PetscErrorCode SETERRQ1(MPI_Comm comm,PetscErrorCode ierr,char *formatmessage,arg)
129 
130    Collective on MPI_Comm
131 
132    Input Parameters:
133 +  comm - A communicator, so that the error can be collective
134 .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
135 .  message - error message in the printf format
136 -  arg - argument (for example an integer, string or double)
137 
138   Level: beginner
139 
140    Notes:
141     Once the error handler is called the calling function is then returned from with the given error code.
142 
143    Experienced users can set the error handler with PetscPushErrorHandler().
144 
145    Concepts: error^setting condition
146 
147 .seealso: PetscTraceBackErrorHandler(), PetscPushErrorHandler(), PetscError(), CHKERRQ(), CHKMEMQ, SETERRQ(), SETERRQ2(), SETERRQ3()
148 M*/
149 #define SETERRQ1(comm,ierr,s,a1) return PetscError(comm,__LINE__,PETSC_FUNCTION_NAME,__FILE__,ierr,PETSC_ERROR_INITIAL,s,a1)
150 
151 /*MC
152    SETERRQ2 - Macro that is called when an error has been detected,
153 
154    Synopsis:
155    #include <petscsys.h>
156    PetscErrorCode SETERRQ2(MPI_Comm comm,PetscErrorCode ierr,char *formatmessage,arg1,arg2)
157 
158    Collective on MPI_Comm
159 
160    Input Parameters:
161 +  comm - A communicator, so that the error can be collective
162 .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
163 .  message - error message in the printf format
164 .  arg1 - argument (for example an integer, string or double)
165 -  arg2 - argument (for example an integer, string or double)
166 
167   Level: beginner
168 
169    Notes:
170     Once the error handler is called the calling function is then returned from with the given error code.
171 
172    Experienced users can set the error handler with PetscPushErrorHandler().
173 
174    Concepts: error^setting condition
175 
176 .seealso: PetscTraceBackErrorHandler(), PetscPushErrorHandler(), PetscError(), CHKERRQ(), CHKMEMQ, SETERRQ1(), SETERRQ3()
177 M*/
178 #define SETERRQ2(comm,ierr,s,a1,a2) return PetscError(comm,__LINE__,PETSC_FUNCTION_NAME,__FILE__,ierr,PETSC_ERROR_INITIAL,s,a1,a2)
179 
180 /*MC
181    SETERRQ3 - Macro that is called when an error has been detected,
182 
183    Synopsis:
184    #include <petscsys.h>
185    PetscErrorCode SETERRQ3(MPI_Comm comm,PetscErrorCode ierr,char *formatmessage,arg1,arg2,arg3)
186 
187    Collective on MPI_Comm
188 
189    Input Parameters:
190 +  comm - A communicator, so that the error can be collective
191 .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
192 .  message - error message in the printf format
193 .  arg1 - argument (for example an integer, string or double)
194 .  arg2 - argument (for example an integer, string or double)
195 -  arg3 - argument (for example an integer, string or double)
196 
197   Level: beginner
198 
199    Notes:
200     Once the error handler is called the calling function is then returned from with the given error code.
201 
202     There are also versions for 4, 5, 6 and 7 arguments.
203 
204    Experienced users can set the error handler with PetscPushErrorHandler().
205 
206    Concepts: error^setting condition
207 
208 .seealso: PetscTraceBackErrorHandler(), PetscPushErrorHandler(), PetscError(), CHKERRQ(), CHKMEMQ, SETERRQ1(), SETERRQ2()
209 M*/
210 #define SETERRQ3(comm,ierr,s,a1,a2,a3) return PetscError(comm,__LINE__,PETSC_FUNCTION_NAME,__FILE__,ierr,PETSC_ERROR_INITIAL,s,a1,a2,a3)
211 
212 /*MC
213    SETERRQ4 - Macro that is called when an error has been detected,
214 
215    Synopsis:
216    #include <petscsys.h>
217    PetscErrorCode SETERRQ4(MPI_Comm comm,PetscErrorCode ierr,char *formatmessage,arg1,arg2,arg3)
218 
219    Collective on MPI_Comm
220 
221    Input Parameters:
222 +  comm - A communicator, so that the error can be collective
223 .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
224 .  message - error message in the printf format
225 .  arg1 - argument (for example an integer, string or double)
226 .  arg2 - argument (for example an integer, string or double)
227 .  arg3 - argument (for example an integer, string or double)
228 -  arg4 - argument (for example an integer, string or double)
229 
230   Level: beginner
231 
232    Notes:
233     Once the error handler is called the calling function is then returned from with the given error code.
234 
235     There are also versions for 4, 5, 6 and 7 arguments.
236 
237    Experienced users can set the error handler with PetscPushErrorHandler().
238 
239    Concepts: error^setting condition
240 
241 .seealso: PetscTraceBackErrorHandler(), PetscPushErrorHandler(), PetscError(), CHKERRQ(), CHKMEMQ, SETERRQ1(), SETERRQ2()
242 M*/
243 #define SETERRQ4(comm,ierr,s,a1,a2,a3,a4) return PetscError(comm,__LINE__,PETSC_FUNCTION_NAME,__FILE__,ierr,PETSC_ERROR_INITIAL,s,a1,a2,a3,a4)
244 
245 /*MC
246    SETERRQ5 - Macro that is called when an error has been detected,
247 
248    Synopsis:
249    #include <petscsys.h>
250    PetscErrorCode SETERRQ5(MPI_Comm comm,PetscErrorCode ierr,char *formatmessage,arg1,arg2,arg3)
251 
252    Collective on MPI_COmm
253 
254    Input Parameters:
255 +  comm - A communicator, so that the error can be collective
256 .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
257 .  message - error message in the printf format
258 .  arg1 - argument (for example an integer, string or double)
259 .  arg2 - argument (for example an integer, string or double)
260 .  arg3 - argument (for example an integer, string or double)
261 .  arg4 - argument (for example an integer, string or double)
262 -  arg5 - argument (for example an integer, string or double)
263 
264   Level: beginner
265 
266    Notes:
267     Once the error handler is called the calling function is then returned from with the given error code.
268 
269     There are also versions for 4, 5, 6 and 7 arguments.
270 
271    Experienced users can set the error handler with PetscPushErrorHandler().
272 
273    Concepts: error^setting condition
274 
275 .seealso: PetscTraceBackErrorHandler(), PetscPushErrorHandler(), PetscError(), CHKERRQ(), CHKMEMQ, SETERRQ1(), SETERRQ2()
276 M*/
277 #define SETERRQ5(comm,ierr,s,a1,a2,a3,a4,a5) return PetscError(comm,__LINE__,PETSC_FUNCTION_NAME,__FILE__,ierr,PETSC_ERROR_INITIAL,s,a1,a2,a3,a4,a5)
278 
279 /*MC
280    SETERRQ6 - Macro that is called when an error has been detected,
281 
282    Synopsis:
283    #include <petscsys.h>
284    PetscErrorCode SETERRQ6(MPI_Comm comm,PetscErrorCode ierr,char *formatmessage,arg1,arg2,arg3)
285 
286    Collective on MPI_Comm
287 
288    Input Parameters:
289 +  comm - A communicator, so that the error can be collective
290 .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
291 .  message - error message in the printf format
292 .  arg1 - argument (for example an integer, string or double)
293 .  arg2 - argument (for example an integer, string or double)
294 .  arg3 - argument (for example an integer, string or double)
295 .  arg4 - argument (for example an integer, string or double)
296 .  arg5 - argument (for example an integer, string or double)
297 -  arg6 - argument (for example an integer, string or double)
298 
299   Level: beginner
300 
301    Notes:
302     Once the error handler is called the calling function is then returned from with the given error code.
303 
304     There are also versions for 4, 5, 6 and 7 arguments.
305 
306    Experienced users can set the error handler with PetscPushErrorHandler().
307 
308    Concepts: error^setting condition
309 
310 .seealso: PetscTraceBackErrorHandler(), PetscPushErrorHandler(), PetscError(), CHKERRQ(), CHKMEMQ, SETERRQ1(), SETERRQ2()
311 M*/
312 #define SETERRQ6(comm,ierr,s,a1,a2,a3,a4,a5,a6) return PetscError(comm,__LINE__,PETSC_FUNCTION_NAME,__FILE__,ierr,PETSC_ERROR_INITIAL,s,a1,a2,a3,a4,a5,a6)
313 
314 /*MC
315    SETERRQ7 - Macro that is called when an error has been detected,
316 
317    Synopsis:
318    #include <petscsys.h>
319    PetscErrorCode SETERRQ7(MPI_Comm comm,PetscErrorCode ierr,char *formatmessage,arg1,arg2,arg3)
320 
321    Collective on MPI_Comm
322 
323    Input Parameters:
324 +  comm - A communicator, so that the error can be collective
325 .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
326 .  message - error message in the printf format
327 .  arg1 - argument (for example an integer, string or double)
328 .  arg2 - argument (for example an integer, string or double)
329 .  arg3 - argument (for example an integer, string or double)
330 .  arg4 - argument (for example an integer, string or double)
331 .  arg5 - argument (for example an integer, string or double)
332 .  arg6 - argument (for example an integer, string or double)
333 -  arg7 - argument (for example an integer, string or double)
334 
335   Level: beginner
336 
337    Notes:
338     Once the error handler is called the calling function is then returned from with the given error code.
339 
340     There are also versions for 4, 5, 6 and 7 arguments.
341 
342    Experienced users can set the error handler with PetscPushErrorHandler().
343 
344    Concepts: error^setting condition
345 
346 .seealso: PetscTraceBackErrorHandler(), PetscPushErrorHandler(), PetscError(), CHKERRQ(), CHKMEMQ, SETERRQ1(), SETERRQ2()
347 M*/
348 #define SETERRQ7(comm,ierr,s,a1,a2,a3,a4,a5,a6,a7) return PetscError(comm,__LINE__,PETSC_FUNCTION_NAME,__FILE__,ierr,PETSC_ERROR_INITIAL,s,a1,a2,a3,a4,a5,a6,a7)
349 
350 /*MC
351    SETERRQ8 - Macro that is called when an error has been detected,
352 
353    Synopsis:
354    #include <petscsys.h>
355    PetscErrorCode SETERRQ8(MPI_Comm comm,PetscErrorCode ierr,char *formatmessage,arg1,arg2,arg3)
356 
357    Collective on MPI_Comm
358 
359    Input Parameters:
360 +  comm - A communicator, so that the error can be collective
361 .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
362 .  message - error message in the printf format
363 .  arg1 - argument (for example an integer, string or double)
364 .  arg2 - argument (for example an integer, string or double)
365 .  arg3 - argument (for example an integer, string or double)
366 .  arg4 - argument (for example an integer, string or double)
367 .  arg5 - argument (for example an integer, string or double)
368 .  arg6 - argument (for example an integer, string or double)
369 .  arg7 - argument (for example an integer, string or double)
370 -  arg8 - argument (for example an integer, string or double)
371 
372   Level: beginner
373 
374    Notes:
375     Once the error handler is called the calling function is then returned from with the given error code.
376 
377     There are also versions for 4, 5, 6 and 7 arguments.
378 
379    Experienced users can set the error handler with PetscPushErrorHandler().
380 
381    Concepts: error^setting condition
382 
383 .seealso: PetscTraceBackErrorHandler(), PetscPushErrorHandler(), PetscError(), CHKERRQ(), CHKMEMQ, SETERRQ1(), SETERRQ2()
384 M*/
385 #define SETERRQ8(comm,ierr,s,a1,a2,a3,a4,a5,a6,a7,a8) return PetscError(comm,__LINE__,PETSC_FUNCTION_NAME,__FILE__,ierr,PETSC_ERROR_INITIAL,s,a1,a2,a3,a4,a5,a6,a7,a8)
386 
387 /*MC
388    SETERRABORT - Macro that can be called when an error has been detected,
389 
390    Synopsis:
391    #include <petscsys.h>
392    PetscErrorCode SETERRABORT(MPI_Comm comm,PetscErrorCode ierr,char *message)
393 
394    Collective on MPI_Comm
395 
396    Input Parameters:
397 +  comm - A communicator, so that the error can be collective
398 .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
399 -  message - error message in the printf format
400 
401   Level: beginner
402 
403    Notes:
404     This function just calls MPI_Abort().
405 
406    Concepts: error^setting condition
407 
408 .seealso: PetscTraceBackErrorHandler(), PetscPushErrorHandler(), PetscError(), CHKERRQ(), CHKMEMQ, SETERRQ1(), SETERRQ2()
409 M*/
410 #define SETERRABORT(comm,ierr,s) do {PetscError(comm,__LINE__,PETSC_FUNCTION_NAME,__FILE__,ierr,PETSC_ERROR_INITIAL,s);MPI_Abort(comm,ierr);} while (0)
411 
412 /*MC
413    CHKERRQ - Checks error code, if non-zero it calls the error handler and then returns
414 
415    Synopsis:
416    #include <petscsys.h>
417    PetscErrorCode CHKERRQ(PetscErrorCode ierr)
418 
419    Not Collective
420 
421    Input Parameters:
422 .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
423 
424   Level: beginner
425 
426    Notes:
427     Once the error handler is called the calling function is then returned from with the given error code.
428 
429     Experienced users can set the error handler with PetscPushErrorHandler().
430 
431     CHKERRQ(ierr) is fundamentally a macro replacement for
432          if (ierr) return(PetscError(...,ierr,...));
433 
434     Although typical usage resembles "void CHKERRQ(PetscErrorCode)" as described above, for certain uses it is
435     highly inappropriate to use it in this manner as it invokes return(PetscErrorCode). In particular,
436     it cannot be used in functions which return(void) or any other datatype.  In these types of functions,
437     you can use CHKERRV() which returns without an error code (bad idea since the error is ignored or
438          if (ierr) {PetscError(....); return(YourReturnType);}
439     where you may pass back a NULL to indicate an error. You can also call CHKERRABORT(comm,n) to have
440     MPI_Abort() returned immediately.
441 
442    Concepts: error^setting condition
443 
444 .seealso: PetscTraceBackErrorHandler(), PetscPushErrorHandler(), PetscError(), SETERRQ(), CHKMEMQ, SETERRQ1(), SETERRQ2(), SETERRQ2()
445 M*/
446 #define CHKERRQ(ierr)          do {if (PetscUnlikely(ierr)) return PetscError(PETSC_COMM_SELF,__LINE__,PETSC_FUNCTION_NAME,__FILE__,ierr,PETSC_ERROR_REPEAT," ");} while (0)
447 #define CHKERRV(ierr)          do {if (PetscUnlikely(ierr)) {ierr = PetscError(PETSC_COMM_SELF,__LINE__,PETSC_FUNCTION_NAME,__FILE__,ierr,PETSC_ERROR_REPEAT," ");return;}} while(0)
448 #define CHKERRABORT(comm,ierr) do {if (PetscUnlikely(ierr)) {PetscError(PETSC_COMM_SELF,__LINE__,PETSC_FUNCTION_NAME,__FILE__,ierr,PETSC_ERROR_REPEAT," ");MPI_Abort(comm,ierr);}} while (0)
449 
450 
451 /*MC
452    CHKERRMPI - Checks error code, if non-zero it calls the error handler and then returns
453 
454    Synopsis:
455    #include <petscsys.h>
456    PetscErrorCode CHKERRMPI(PetscErrorCode ierr)
457 
458    Not Collective
459 
460    Input Parameters:
461 .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
462 
463   Level: developer
464 
465    Notes:
466     This macro is FOR USE IN MPI CALLBACK FUNCTIONS ONLY, such as those passed to MPI_Comm_create_keyval(). It always returns the error code PETSC_MPI_ERROR_CODE
467     which is registered with MPI_Add_error_code() when PETSc is initialized.
468 
469    Concepts: error^setting condition
470 
471 .seealso: CHKERRQ(), PetscTraceBackErrorHandler(), PetscPushErrorHandler(), PetscError(), SETERRQ(), CHKMEMQ, SETERRQ1(), SETERRQ2(), SETERRQ2()
472 M*/
473 #define CHKERRMPI(ierr)        do {if (PetscUnlikely(ierr)) return (PetscError(PETSC_COMM_SELF,__LINE__,PETSC_FUNCTION_NAME,__FILE__,ierr,PETSC_ERROR_REPEAT," "),PETSC_MPI_ERROR_CODE);} while (0)
474 
475 #ifdef PETSC_CLANGUAGE_CXX
476 
477 /*MC
478    CHKERRXX - Checks error code, if non-zero it calls the C++ error handler which throws an exception
479 
480    Synopsis:
481    #include <petscsys.h>
482    void CHKERRXX(PetscErrorCode ierr)
483 
484    Not Collective
485 
486    Input Parameters:
487 .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
488 
489   Level: beginner
490 
491    Notes:
492     Once the error handler throws a ??? exception.
493 
494     You can use CHKERRV() which returns without an error code (bad idea since the error is ignored)
495     or CHKERRABORT(comm,n) to have MPI_Abort() returned immediately.
496 
497    Concepts: error^setting condition
498 
499 .seealso: PetscTraceBackErrorHandler(), PetscPushErrorHandler(), PetscError(), SETERRQ(), CHKERRQ(), CHKMEMQ
500 M*/
501 #define CHKERRXX(ierr)  do {if (PetscUnlikely(ierr)) {PetscError(PETSC_COMM_SELF,__LINE__,PETSC_FUNCTION_NAME,__FILE__,ierr,PETSC_ERROR_IN_CXX,0);}} while(0)
502 
503 #endif
504 
505 #define CHKERRCUDA(err)   do {if (PetscUnlikely(err)) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_LIB,"CUDA error %d",err);} while(0)
506 #define CHKERRCUBLAS(err) do {if (PetscUnlikely(err)) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_LIB,"CUBLAS error %d",err);} while(0)
507 
508 /*MC
509    CHKMEMQ - Checks the memory for corruption, calls error handler if any is detected
510 
511    Synopsis:
512    #include <petscsys.h>
513    CHKMEMQ;
514 
515    Not Collective
516 
517   Level: beginner
518 
519    Notes:
520     We highly recommend using valgrind http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind for finding memory problems. This is useful
521     on systems that do not have valgrind, but much much less useful.
522 
523     Must run with the option -malloc_debug to enable this option
524 
525     Once the error handler is called the calling function is then returned from with the given error code.
526 
527     By defaults prints location where memory that is corrupted was allocated.
528 
529     Use CHKMEMA for functions that return void
530 
531    Concepts: memory corruption
532 
533 .seealso: PetscTraceBackErrorHandler(), PetscPushErrorHandler(), PetscError(), SETERRQ(), CHKMEMQ, SETERRQ1(), SETERRQ2(), SETERRQ3(),
534           PetscMallocValidate()
535 M*/
536 #define CHKMEMQ do {PetscErrorCode _7_ierr = PetscMallocValidate(__LINE__,PETSC_FUNCTION_NAME,__FILE__);CHKERRQ(_7_ierr);} while(0)
537 
538 #define CHKMEMA PetscMallocValidate(__LINE__,PETSC_FUNCTION_NAME,__FILE__)
539 
540 /*E
541   PetscErrorType - passed to the PETSc error handling routines indicating if this is the first or a later call to the error handlers
542 
543   Level: advanced
544 
545   PETSC_ERROR_IN_CXX indicates the error was detected in C++ and an exception should be generated
546 
547   Developer Notes:
548     This is currently used to decide when to print the detailed information about the run in PetscTraceBackErrorHandler()
549 
550 .seealso: PetscError(), SETERRXX()
551 E*/
552 typedef enum {PETSC_ERROR_INITIAL=0,PETSC_ERROR_REPEAT=1,PETSC_ERROR_IN_CXX = 2} PetscErrorType;
553 
554 #if defined(__clang_analyzer__)
555 __attribute__((analyzer_noreturn))
556 #endif
557 PETSC_EXTERN PetscErrorCode PetscError(MPI_Comm,int,const char*,const char*,PetscErrorCode,PetscErrorType,const char*,...);
558 
559 PETSC_EXTERN PetscErrorCode PetscErrorPrintfInitialize(void);
560 PETSC_EXTERN PetscErrorCode PetscErrorMessage(int,const char*[],char **);
561 PETSC_EXTERN PetscErrorCode PetscTraceBackErrorHandler(MPI_Comm,int,const char*,const char*,PetscErrorCode,PetscErrorType,const char*,void*);
562 PETSC_EXTERN PetscErrorCode PetscIgnoreErrorHandler(MPI_Comm,int,const char*,const char*,PetscErrorCode,PetscErrorType,const char*,void*);
563 PETSC_EXTERN PetscErrorCode PetscEmacsClientErrorHandler(MPI_Comm,int,const char*,const char*,PetscErrorCode,PetscErrorType,const char*,void*);
564 PETSC_EXTERN PetscErrorCode PetscMPIAbortErrorHandler(MPI_Comm,int,const char*,const char*,PetscErrorCode,PetscErrorType,const char*,void*);
565 PETSC_EXTERN PetscErrorCode PetscAbortErrorHandler(MPI_Comm,int,const char*,const char*,PetscErrorCode,PetscErrorType,const char*,void*);
566 PETSC_EXTERN PetscErrorCode PetscAttachDebuggerErrorHandler(MPI_Comm,int,const char*,const char*,PetscErrorCode,PetscErrorType,const char*,void*);
567 PETSC_EXTERN PetscErrorCode PetscReturnErrorHandler(MPI_Comm,int,const char*,const char*,PetscErrorCode,PetscErrorType,const char*,void*);
568 PETSC_EXTERN PetscErrorCode PetscPushErrorHandler(PetscErrorCode (*handler)(MPI_Comm,int,const char*,const char*,PetscErrorCode,PetscErrorType,const char*,void*),void*);
569 PETSC_EXTERN PetscErrorCode PetscPopErrorHandler(void);
570 PETSC_EXTERN PetscErrorCode PetscSignalHandlerDefault(int,void*);
571 PETSC_EXTERN PetscErrorCode PetscPushSignalHandler(PetscErrorCode (*)(int,void *),void*);
572 PETSC_EXTERN PetscErrorCode PetscPopSignalHandler(void);
573 PETSC_EXTERN PetscErrorCode PetscCheckPointerSetIntensity(PetscInt);
574 
575 /*MC
576     PetscErrorPrintf - Prints error messages.
577 
578    Synopsis:
579     #include <petscsys.h>
580      PetscErrorCode (*PetscErrorPrintf)(const char format[],...);
581 
582     Not Collective
583 
584     Input Parameters:
585 .   format - the usual printf() format string
586 
587    Options Database Keys:
588 +    -error_output_stdout - cause error messages to be printed to stdout instead of the  (default) stderr
589 -    -error_output_none - to turn off all printing of error messages (does not change the way the error is handled.)
590 
591    Notes:
592     Use
593 $     PetscErrorPrintf = PetscErrorPrintfNone; to turn off all printing of error messages (does not change the way the
594 $                        error is handled.) and
595 $     PetscErrorPrintf = PetscErrorPrintfDefault; to turn it back on or you can use your own function
596 
597           Use
598      PETSC_STDERR = FILE* obtained from a file open etc. to have stderr printed to the file.
599      PETSC_STDOUT = FILE* obtained from a file open etc. to have stdout printed to the file.
600 
601           Use
602       PetscPushErrorHandler() to provide your own error handler that determines what kind of messages to print
603 
604    Level: developer
605 
606     Fortran Note:
607     This routine is not supported in Fortran.
608 
609     Concepts: error messages^printing
610     Concepts: printing^error messages
611 
612 .seealso: PetscFPrintf(), PetscSynchronizedPrintf(), PetscHelpPrintf(), PetscPrintf(), PetscErrorHandlerPush(), PetscVFPrintf(), PetscHelpPrintf()
613 M*/
614 PETSC_EXTERN PetscErrorCode (*PetscErrorPrintf)(const char[],...);
615 
616 typedef enum {PETSC_FP_TRAP_OFF=0,PETSC_FP_TRAP_ON=1} PetscFPTrap;
617 PETSC_EXTERN PetscErrorCode PetscSetFPTrap(PetscFPTrap);
618 PETSC_EXTERN PetscErrorCode PetscFPTrapPush(PetscFPTrap);
619 PETSC_EXTERN PetscErrorCode PetscFPTrapPop(void);
620 
621 /*
622       Allows the code to build a stack frame as it runs
623 */
624 
625 #define PETSCSTACKSIZE 64
626 
627 typedef struct  {
628   const char      *function[PETSCSTACKSIZE];
629   const char      *file[PETSCSTACKSIZE];
630         int       line[PETSCSTACKSIZE];
631         PetscBool petscroutine[PETSCSTACKSIZE];
632         int       currentsize;
633         int       hotdepth;
634 } PetscStack;
635 
636 PETSC_EXTERN PetscStack *petscstack;
637 
638 PetscErrorCode  PetscStackCopy(PetscStack*,PetscStack*);
639 PetscErrorCode  PetscStackPrint(PetscStack *,FILE*);
640 #if defined(PETSC_SERIALIZE_FUNCTIONS)
641 #include <petsc/private/petscfptimpl.h>
642 /*
643    Registers the current function into the global function pointer to function name table
644 
645    Have to fix this to handle errors but cannot return error since used in PETSC_VIEWER_DRAW_() etc
646 */
647 #define PetscRegister__FUNCT__() do { \
648   static PetscBool __chked = PETSC_FALSE; \
649   if (!__chked) {\
650   void *ptr; PetscDLSym(NULL,PETSC_FUNCTION_NAME,&ptr);\
651   __chked = PETSC_TRUE;\
652   }} while (0)
653 #else
654 #define PetscRegister__FUNCT__()
655 #endif
656 
657 #if defined(PETSC_USE_DEBUG)
658 PETSC_STATIC_INLINE PetscBool PetscStackActive(void)
659 {
660   return(petscstack ? PETSC_TRUE : PETSC_FALSE);
661 }
662 
663 /* Stack handling is based on the following two "NoCheck" macros.  These should only be called directly by other error
664  * handling macros.  We record the line of the call, which may or may not be the location of the definition.  But is at
665  * least more useful than "unknown" because it can distinguish multiple calls from the same function.
666  */
667 
668 #define PetscStackPushNoCheck(funct,petsc_routine,hot)                        \
669   do {                                                                        \
670     PetscStackSAWsTakeAccess();                                                \
671     if (petscstack && (petscstack->currentsize < PETSCSTACKSIZE)) {         \
672       petscstack->function[petscstack->currentsize]  = funct;               \
673       petscstack->file[petscstack->currentsize]      = __FILE__;            \
674       petscstack->line[petscstack->currentsize]      = __LINE__;            \
675       petscstack->petscroutine[petscstack->currentsize] = petsc_routine;    \
676       petscstack->currentsize++;                                             \
677     }                                                                         \
678     if (petscstack) {                                                        \
679       petscstack->hotdepth += (hot || petscstack->hotdepth);                \
680     }                                                                         \
681     PetscStackSAWsGrantAccess();                                               \
682   } while (0)
683 
684 #define PetscStackPopNoCheck                                            \
685   do {                                                                  \
686     PetscStackSAWsTakeAccess();                                          \
687     if (petscstack && petscstack->currentsize > 0) {                  \
688       petscstack->currentsize--;                                       \
689       petscstack->function[petscstack->currentsize]  = 0;             \
690       petscstack->file[petscstack->currentsize]      = 0;             \
691       petscstack->line[petscstack->currentsize]      = 0;             \
692       petscstack->petscroutine[petscstack->currentsize] = PETSC_FALSE;\
693     }                                                                   \
694     if (petscstack) {                                                  \
695       petscstack->hotdepth = PetscMax(petscstack->hotdepth-1,0);      \
696     }                                                                   \
697     PetscStackSAWsGrantAccess();                                         \
698   } while (0)
699 
700 /*MC
701    PetscFunctionBegin - First executable line of each PETSc function,  used for error handling. Final
702       line of PETSc functions should be PetscFunctionReturn(0);
703 
704    Synopsis:
705    #include <petscsys.h>
706    void PetscFunctionBegin;
707 
708    Not Collective
709 
710    Usage:
711 .vb
712      int something;
713 
714      PetscFunctionBegin;
715 .ve
716 
717    Notes:
718      Use PetscFunctionBeginUser for application codes.
719 
720      Not available in Fortran
721 
722    Level: developer
723 
724 .seealso: PetscFunctionReturn(), PetscFunctionBeginHot(), PetscFunctionBeginUser()
725 
726 .keywords: traceback, error handling
727 M*/
728 #define PetscFunctionBegin do {                                        \
729     PetscStackPushNoCheck(PETSC_FUNCTION_NAME,PETSC_TRUE,PETSC_FALSE); \
730     PetscRegister__FUNCT__();                                          \
731   } while (0)
732 
733 /*MC
734    PetscFunctionBeginHot - Substitute for PetscFunctionBegin to be used in functions that are called in
735    performance-critical circumstances.  Use of this function allows for lighter profiling by default.
736 
737    Synopsis:
738    #include <petscsys.h>
739    void PetscFunctionBeginHot;
740 
741    Not Collective
742 
743    Usage:
744 .vb
745      int something;
746 
747      PetscFunctionBeginHot;
748 .ve
749 
750    Notes:
751      Not available in Fortran
752 
753    Level: developer
754 
755 .seealso: PetscFunctionBegin, PetscFunctionReturn()
756 
757 .keywords: traceback, error handling
758 M*/
759 #define PetscFunctionBeginHot do {                                     \
760     PetscStackPushNoCheck(PETSC_FUNCTION_NAME,PETSC_TRUE,PETSC_TRUE);  \
761     PetscRegister__FUNCT__();                                          \
762   } while (0)
763 
764 /*MC
765    PetscFunctionBeginUser - First executable line of user provided PETSc routine
766 
767    Synopsis:
768    #include <petscsys.h>
769    void PetscFunctionBeginUser;
770 
771    Not Collective
772 
773    Usage:
774 .vb
775      int something;
776 
777      PetscFunctionBeginUser;
778 .ve
779 
780    Notes:
781       Final line of PETSc functions should be PetscFunctionReturn(0) except for main().
782 
783       Not available in Fortran
784 
785       This is identical to PetscFunctionBegin except it labels the routine as a user
786       routine instead of as a PETSc library routine.
787 
788    Level: intermediate
789 
790 .seealso: PetscFunctionReturn(), PetscFunctionBegin, PetscFunctionBeginHot
791 
792 .keywords: traceback, error handling
793 M*/
794 #define PetscFunctionBeginUser                                          \
795   do {                                                                  \
796     PetscStackPushNoCheck(PETSC_FUNCTION_NAME,PETSC_FALSE,PETSC_FALSE); \
797     PetscRegister__FUNCT__();                                           \
798   } while (0)
799 
800 
801 #define PetscStackPush(n) \
802   do {                                                                  \
803     PetscStackPushNoCheck(n,PETSC_FALSE,PETSC_FALSE);                   \
804     CHKMEMQ;                                                            \
805   } while (0)
806 
807 #define PetscStackPop                           \
808     do {                                        \
809       CHKMEMQ;                                  \
810       PetscStackPopNoCheck;                     \
811     } while (0)
812 
813 /*MC
814    PetscFunctionReturn - Last executable line of each PETSc function
815         used for error handling. Replaces return()
816 
817    Synopsis:
818    #include <petscsys.h>
819    void PetscFunctionReturn(0);
820 
821    Not Collective
822 
823    Usage:
824 .vb
825     ....
826      PetscFunctionReturn(0);
827    }
828 .ve
829 
830    Notes:
831      Not available in Fortran
832 
833    Level: developer
834 
835 .seealso: PetscFunctionBegin()
836 
837 .keywords: traceback, error handling
838 M*/
839 #define PetscFunctionReturn(a) \
840   do {                                                                \
841     PetscStackPopNoCheck;                                             \
842     return(a);} while (0)
843 
844 #define PetscFunctionReturnVoid() \
845   do {                                                                \
846     PetscStackPopNoCheck;                                             \
847     return;} while (0)
848 
849 #else
850 
851 PETSC_STATIC_INLINE PetscBool PetscStackActive(void) {return PETSC_FALSE;}
852 #define PetscStackPushNoCheck(funct,petsc_routine,hot) do {} while (0)
853 #define PetscStackPopNoCheck                           do {} while (0)
854 #define PetscFunctionBegin
855 #define PetscFunctionBeginUser
856 #define PetscFunctionBeginHot
857 #define PetscFunctionReturn(a)    return(a)
858 #define PetscFunctionReturnVoid() return
859 #define PetscStackPop             CHKMEMQ
860 #define PetscStackPush(f)         CHKMEMQ
861 
862 #endif
863 
864 /*
865     PetscStackCall - Calls an external library routine or user function after pushing the name of the routine on the stack.
866 
867    Input Parameters:
868 +   name - string that gives the name of the function being called
869 -   routine - actual call to the routine, including ierr = and CHKERRQ(ierr);
870 
871    Note: Often one should use PetscStackCallStandard() instead. This routine is intended for external library routines that DO NOT return error codes
872 
873    Developer Note: this is so that when a user or external library routine results in a crash or corrupts memory, they get blamed instead of PETSc.
874 
875 
876 
877 */
878 #define PetscStackCall(name,routine) do { PetscStackPush(name);routine;PetscStackPop; } while(0)
879 
880 /*
881     PetscStackCallStandard - Calls an external library routine after pushing the name of the routine on the stack.
882 
883    Input Parameters:
884 +   func-  name of the routine
885 -   args - arguments to the routine surrounded by ()
886 
887    Notes:
888     This is intended for external package routines that return error codes. Use PetscStackCall() for those that do not.
889 
890    Developer Note: this is so that when an external packge routine results in a crash or corrupts memory, they get blamed instead of PETSc.
891 
892 */
893 #define PetscStackCallStandard(func,args) do {                        \
894     PetscStackPush(#func);ierr = func args;PetscStackPop; if (ierr) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_LIB,"Error in %s(): error code %d",#func,(int)ierr); \
895   } while (0)
896 
897 PETSC_EXTERN PetscErrorCode PetscStackCreate(void);
898 PETSC_EXTERN PetscErrorCode PetscStackView(FILE*);
899 PETSC_EXTERN PetscErrorCode PetscStackDestroy(void);
900 
901 #endif
902