xref: /petsc/include/petsc.h (revision 70e9266812e0d75002c515cbc4e8763b54df4510)
1 /*
2    This is the main PETSc include file (for C and C++).  It is included by all
3    other PETSc include files, so it almost never has to be specifically included.
4 */
5 #if !defined(__PETSC_H)
6 #define __PETSC_H
7 /* ========================================================================== */
8 /*
9    This facilitates using C version of PETSc from C++
10 */
11 
12 #if defined(PETSC_USE_EXTERN_CXX) && defined(__cplusplus)
13 #define PETSC_EXTERN_CXX_BEGIN extern "C" {
14 #define PETSC_EXTERN_CXX_END  }
15 #else
16 #define PETSC_EXTERN_CXX_BEGIN
17 #define PETSC_EXTERN_CXX_END
18 #endif
19 /* ========================================================================== */
20 /*
21    Current PETSc version number and release date
22 */
23 #include "petscversion.h"
24 
25 /* ========================================================================== */
26 /*
27    petscconf.h is contained in bmake/${PETSC_ARCH}/petscconf.h it is
28    found automatically by the compiler due to the -I${PETSC_DIR}/bmake/${PETSC_ARCH}
29    in the bmake/common_variables definition of PETSC_INCLUDE
30 */
31 #include "petscconf.h"
32 
33 /*
34    Currently cannot check formatting for PETSc print statements because we have our
35    own format %D
36 */
37 #undef  PETSC_PRINTF_FORMAT_CHECK
38 #define PETSC_PRINTF_FORMAT_CHECK(a,b)
39 #undef  PETSC_FPRINTF_FORMAT_CHECK
40 #define PETSC_FPRINTF_FORMAT_CHECK(a,b)
41 
42 /*
43    Fixes for configure time choices which impact our interface. Currently only
44    calling conventions and extra compiler checking falls under this category.
45 */
46 #if !defined(PETSC_STDCALL)
47 #define PETSC_STDCALL
48 #endif
49 #if !defined(PETSC_TEMPLATE)
50 #define PETSC_TEMPLATE
51 #endif
52 #if !defined(PETSC_HAVE_DLL_EXPORT)
53 #define PETSC_DLL_EXPORT
54 #define PETSC_DLL_IMPORT
55 #endif
56 #if !defined(PETSC_DLLEXPORT)
57 #define PETSC_DLLEXPORT
58 #endif
59 #if !defined(PETSCVEC_DLLEXPORT)
60 #define PETSCVEC_DLLEXPORT
61 #endif
62 #if !defined(PETSCMAT_DLLEXPORT)
63 #define PETSCMAT_DLLEXPORT
64 #endif
65 #if !defined(PETSCDM_DLLEXPORT)
66 #define PETSCDM_DLLEXPORT
67 #endif
68 #if !defined(PETSCKSP_DLLEXPORT)
69 #define PETSCKSP_DLLEXPORT
70 #endif
71 #if !defined(PETSCSNES_DLLEXPORT)
72 #define PETSCSNES_DLLEXPORT
73 #endif
74 #if !defined(PETSCTS_DLLEXPORT)
75 #define PETSCTS_DLLEXPORT
76 #endif
77 #if !defined(PETSCFORTRAN_DLLEXPORT)
78 #define PETSCFORTRAN_DLLEXPORT
79 #endif
80 /* ========================================================================== */
81 
82 /*
83     Defines the interface to MPI allowing the use of all MPI functions.
84 */
85 #include "mpi.h"
86 /*
87     Yuck, we need to put stdio.h AFTER mpi.h for MPICH2 with C++ compiler
88     see the top of mpicxx.h
89 
90     The MPI STANDARD HAS TO BE CHANGED to prevent this nonsense.
91 */
92 #include <stdio.h>
93 
94 /*
95     All PETSc C functions return this error code, it is the final argument of
96    all Fortran subroutines
97 */
98 typedef int PetscErrorCode;
99 typedef int PetscCookie;
100 typedef int PetscEvent;
101 typedef int PetscBLASInt;
102 typedef int PetscMPIInt;
103 typedef int PetscEnum;           /* Currently PetscEnum and PETSC_ENUM only work when sizeof(PetscInt) = size(int) */
104 #if defined(PETSC_USE_64BIT_INT)
105 typedef long long PetscInt;
106 #define MPIU_INT MPI_LONG_LONG_INT
107 #else
108 typedef int PetscInt;
109 #define MPIU_INT MPI_INT
110 #endif
111 
112 #if !defined(PETSC_USE_EXTERN_CXX) && defined(__cplusplus)
113 /*@C
114       PetscPolymorphicSubroutine - allows defining a C++ polymorphic version of
115             a PETSc function that remove certain optional arguments for a simplier user interface
116 
117      Not collective
118 
119    Synopsis:
120    PetscPolymorphicSubroutine(Functionname,(arguments of C++ function),(arguments of C function))
121 
122    Level: developer
123 
124     Example:
125       PetscPolymorphicSubroutine(VecNorm,(Vec x,PetscReal *r),(x,NORM_2,r)) generates the new routine
126            PetscErrorCode VecNorm(Vec x,PetscReal *r) = VecNorm(x,NORM_2,r)
127 
128 .seealso: PetscPolymorphicFunction()
129 
130 @*/
131 #define PetscPolymorphicSubroutine(A,B,C) PETSC_STATIC_INLINE PetscErrorCode A B {return A C;}
132 
133 /*@C
134       PetscPolymorphicScalar- allows defining a C++ polymorphic version of
135             a PETSc function that replaces a PetscScalar * argument with a PetscScalar argument
136 
137      Not collective
138 
139    Synopsis:
140    PetscPolymorphicScalar(Functionname,(arguments of C++ function),(arguments of C function))
141 
142    Level: developer
143 
144     Example:
145       PetscPolymorphicScalar(VecAXPY,(PetscScalar _t,Vec x,Vec y),(&_T,x,y)) generates the new routine
146            PetscErrorCode VecAXPY(PetscScalar _t,Vec x,Vec y) = {PetscScalar _T = _t; return VecAXPY(&_T,x,y);}
147 
148 .seealso: PetscPolymorphicFunction(),PetscPolymorphicSubroutine()
149 
150 @*/
151 #define PetscPolymorphicScalar(A,B,C) PETSC_STATIC_INLINE PetscErrorCode A B {PetscScalar _T = _t; return A C;}
152 
153 /*@C
154       PetscPolymorphicFunction - allows defining a C++ polymorphic version of
155             a PETSc function that remove certain optional arguments for a simplier user interface
156             and returns the computed value (istead of an error code)
157 
158      Not collective
159 
160    Synopsis:
161    PetscPolymorphicFunction(Functionname,(arguments of C++ function),(arguments of C function),return type,return variable name)
162 
163    Level: developer
164 
165     Example:
166       PetscPolymorphicFunction(VecNorm,(Vec x,NormType t),(x,t,&r),PetscReal,r) generates the new routine
167          PetscReal VecNorm(Vec x,NormType t) = {PetscReal r; VecNorm(x,t,&r); return r;}
168 
169 .seealso: PetscPolymorphicSubroutine()
170 
171 @*/
172 #define PetscPolymorphicFunction(A,B,C,D,E) PETSC_STATIC_INLINE D A B {D E; A C;return E;}
173 
174 #else
175 #define PetscPolymorphicSubroutine(A,B,C)
176 #define PetscPolymorphicScalar(A,B,C)
177 #define PetscPolymorphicFunction(A,B,C,D,E)
178 #endif
179 
180 /*
181     Declare extern C stuff after incuding external header files
182 */
183 
184 PETSC_EXTERN_CXX_BEGIN
185 
186 /*
187     Extern indicates a PETSc function defined elsewhere
188 */
189 #if !defined(EXTERN)
190 #define EXTERN extern
191 #endif
192 
193 /*
194     Defines some elementary mathematics functions and constants.
195 */
196 #include "petscmath.h"
197 
198 /*
199        Basic PETSc constants
200 */
201 
202 /*E
203     PetscTruth - Logical variable. Actually an integer
204 
205    Level: beginner
206 
207 E*/
208 typedef enum { PETSC_FALSE,PETSC_TRUE } PetscTruth;
209 extern const char *PetscTruths[];
210 
211 /*M
212     PETSC_FALSE - False value of PetscTruth
213 
214     Level: beginner
215 
216     Note: Zero integer
217 
218 .seealso: PetscTruth
219 M*/
220 
221 /*M
222     PETSC_TRUE - True value of PetscTruth
223 
224     Level: beginner
225 
226     Note: Nonzero integer
227 
228 .seealso: PetscTruth
229 M*/
230 
231 /*M
232     PETSC_YES - Alias for PETSC_TRUE
233 
234     Level: beginner
235 
236     Note: Zero integer
237 
238 .seealso: PetscTruth
239 M*/
240 #define PETSC_YES            PETSC_TRUE
241 
242 /*M
243     PETSC_NO - Alias for PETSC_FALSE
244 
245     Level: beginner
246 
247     Note: Nonzero integer
248 
249 .seealso: PetscTruth
250 M*/
251 #define PETSC_NO             PETSC_FALSE
252 
253 /*M
254     PETSC_NULL - standard way of passing in a null or array or pointer
255 
256    Level: beginner
257 
258    Notes: accepted by many PETSc functions to not set a parameter and instead use
259           some default
260 
261           This macro does not exist in Fortran; you must use PETSC_NULL_INTEGER,
262           PETSC_NULL_DOUBLE_PRECISION etc
263 
264 .seealso: PETSC_DECIDE, PETSC_DEFAULT, PETSC_IGNORE, PETSC_DETERMINE
265 
266 M*/
267 #define PETSC_NULL           0
268 
269 /*M
270     PETSC_DECIDE - standard way of passing in integer or floating point parameter
271        where you wish PETSc to use the default.
272 
273    Level: beginner
274 
275 .seealso: PETSC_NULL, PETSC_DEFAULT, PETSC_IGNORE, PETSC_DETERMINE
276 
277 M*/
278 #define PETSC_DECIDE         -1
279 
280 /*M
281     PETSC_DEFAULT - standard way of passing in integer or floating point parameter
282        where you wish PETSc to use the default.
283 
284    Level: beginner
285 
286 .seealso: PETSC_DECIDE, PETSC_NULL, PETSC_IGNORE, PETSC_DETERMINE
287 
288 M*/
289 #define PETSC_DEFAULT        -2
290 
291 
292 /*M
293     PETSC_IGNORE - same as PETSC_NULL, means PETSc will ignore this argument
294 
295    Level: beginner
296 
297    Notes: accepted by many PETSc functions to not set a parameter and instead use
298           some default
299 
300           This macro does not exist in Fortran; you must use PETSC_NULL_INTEGER,
301           PETSC_NULL_DOUBLE_PRECISION etc
302 
303 .seealso: PETSC_DECIDE, PETSC_DEFAULT, PETSC_NULL, PETSC_DETERMINE
304 
305 M*/
306 #define PETSC_IGNORE         PETSC_NULL
307 
308 /*M
309     PETSC_DETERMINE - standard way of passing in integer or floating point parameter
310        where you wish PETSc to compute the required value.
311 
312    Level: beginner
313 
314 .seealso: PETSC_DECIDE, PETSC_DEFAULT, PETSC_IGNORE, PETSC_NULL, VecSetSizes()
315 
316 M*/
317 #define PETSC_DETERMINE      PETSC_DECIDE
318 
319 /*M
320     PETSC_COMM_WORLD - the equivalent of the MPI_COMM_WORLD communicator which represents
321            all the processs that PETSc knows about.
322 
323    Level: beginner
324 
325    Notes: By default PETSC_COMM_WORLD and MPI_COMM_WORLD are identical unless you wish to
326           run PETSc on ONLY a subset of MPI_COMM_WORLD. In that case create your new (smaller)
327           communicator, call it, say comm, and set PETSC_COMM_WORLD = comm BEFORE calling
328           PetscInitialize()
329 
330 .seealso: PETSC_COMM_SELF
331 
332 M*/
333 extern MPI_Comm PETSC_COMM_WORLD;
334 
335 /*M
336     PETSC_COMM_SELF - a duplicate of the MPI_COMM_SELF communicator which represents
337            the current process
338 
339    Level: beginner
340 
341    Notes: PETSC_COMM_SELF and MPI_COMM_SELF are equivalent.
342 
343 .seealso: PETSC_COMM_WORLD
344 
345 M*/
346 #define PETSC_COMM_SELF MPI_COMM_SELF
347 
348 extern PETSC_DLLEXPORT PetscTruth PetscInitializeCalled;
349 extern PETSC_DLLEXPORT PetscTruth PetscFinalizeCalled;
350 
351 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscSetHelpVersionFunctions(PetscErrorCode (*)(MPI_Comm),PetscErrorCode (*)(MPI_Comm));
352 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscCommDuplicate(MPI_Comm,MPI_Comm*,int*);
353 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscCommDestroy(MPI_Comm*);
354 
355 /*MC
356    PetscMalloc - Allocates memory
357 
358    Input Parameter:
359 .  m - number of bytes to allocate
360 
361    Output Parameter:
362 .  result - memory allocated
363 
364    Synopsis:
365    PetscErrorCode PetscMalloc(size_t m,void **result)
366 
367    Level: beginner
368 
369    Notes: Memory is always allocated at least double aligned
370 
371           If you request memory of zero size it will allocate no space and assign the pointer to 0; PetscFree() will
372           properly handle not freeing the null pointer.
373 
374 .seealso: PetscFree(), PetscNew()
375 
376   Concepts: memory allocation
377 
378 M*/
379 #define PetscMalloc(a,b)  ((a != 0) ? (*PetscTrMalloc)((a),__LINE__,__FUNCT__,__FILE__,__SDIR__,(void**)(b)) : (*(b) = 0,0) )
380 
381 /*MC
382    PetscMalloc2 - Allocates 2 chunks of  memory
383 
384    Input Parameter:
385 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
386 .  t1 - type of first memory elements
387 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
388 -  t2 - type of second memory elements
389 
390    Output Parameter:
391 +  r1 - memory allocated in first chunk
392 -  r2 - memory allocated in second chunk
393 
394    Synopsis:
395    PetscErrorCode PetscMalloc2(size_t m1,type, t1,void **r1,size_t m2,type t2,void **r2)
396 
397    Level: developer
398 
399    Notes: Memory of first chunk is always allocated at least double aligned
400 
401 .seealso: PetscFree(), PetscNew(), PetscMalloc()
402 
403   Concepts: memory allocation
404 
405 M*/
406 #if defined(PETSC_USE_DEBUG)
407 #define PetscMalloc2(m1,t1,r1,m2,t2,r2) (PetscMalloc((m1)*sizeof(t1),r1) || PetscMalloc((m2)*sizeof(t2),r2))
408 #else
409 #define PetscMalloc2(m1,t1,r1,m2,t2,r2) (PetscMalloc((m1)*sizeof(t1)+(m2)*sizeof(t2),r1) || (*(r2) = (t2*)(*(r1)+m1),0))
410 #endif
411 
412 /*MC
413    PetscMalloc3 - Allocates 3 chunks of  memory
414 
415    Input Parameter:
416 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
417 .  t1 - type of first memory elements
418 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
419 .  t2 - type of second memory elements
420 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
421 -  t3 - type of third memory elements
422 
423    Output Parameter:
424 +  r1 - memory allocated in first chunk
425 .  r2 - memory allocated in second chunk
426 -  r3 - memory allocated in third chunk
427 
428    Synopsis:
429    PetscErrorCode PetscMalloc3(size_t m1,type, t1,void **r1,size_t m2,type t2,void **r2,size_t m3,type t3,void **r3)
430 
431    Level: developer
432 
433    Notes: Memory of first chunk is always allocated at least double aligned
434 
435 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree3()
436 
437   Concepts: memory allocation
438 
439 M*/
440 #if defined(PETSC_USE_DEBUG)
441 #define PetscMalloc3(m1,t1,r1,m2,t2,r2,m3,t3,r3) (PetscMalloc((m1)*sizeof(t1),r1) || PetscMalloc((m2)*sizeof(t2),r2) || PetscMalloc((m3)*sizeof(t3),r3))
442 #else
443 #define PetscMalloc3(m1,t1,r1,m2,t2,r2,m3,t3,r3) (PetscMalloc((m1)*sizeof(t1)+(m2)*sizeof(t2)+(m3)*sizeof(t3),r1) || (*(r2) = (t2*)(*(r1)+m1),*(r3) = (t3*)(*(r2)+m2),0))
444 #endif
445 
446 /*MC
447    PetscMalloc4 - Allocates 4 chunks of  memory
448 
449    Input Parameter:
450 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
451 .  t1 - type of first memory elements
452 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
453 .  t2 - type of second memory elements
454 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
455 .  t3 - type of third memory elements
456 .  m4 - number of elements to allocate in 4th chunk  (may be zero)
457 -  t4 - type of fourth memory elements
458 
459    Output Parameter:
460 +  r1 - memory allocated in first chunk
461 .  r2 - memory allocated in second chunk
462 .  r3 - memory allocated in third chunk
463 -  r4 - memory allocated in fourth chunk
464 
465    Synopsis:
466    PetscErrorCode PetscMalloc4(size_t m1,type, t1,void **r1,size_t m2,type t2,void **r2,size_t m3,type t3,void **r3,size_t m4,type t4,void **r4)
467 
468    Level: developer
469 
470    Notes: Memory of first chunk is always allocated at least double aligned
471 
472 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree3(), PetscFree4()
473 
474   Concepts: memory allocation
475 
476 M*/
477 #if defined(PETSC_USE_DEBUG)
478 #define PetscMalloc4(m1,t1,r1,m2,t2,r2,m3,t3,r3,m4,t4,r4) (PetscMalloc((m1)*sizeof(t1),r1) || PetscMalloc((m2)*sizeof(t2),r2) || PetscMalloc((m3)*sizeof(t3),r3) || PetscMalloc((m4)*sizeof(t4),r4))
479 #else
480 #define PetscMalloc4(m1,t1,r1,m2,t2,r2,m3,t3,r3,m4,t4,r4) (PetscMalloc((m1)*sizeof(t1)+(m2)*sizeof(t2)+(m3)*sizeof(t3)+(m4)*sizeof(t4),r1) || (*(r2) = (t2*)(*(r1)+m1),*(r3) = (t3*)(*(r2)+m2),*(r4) = (t4*)(*(r3)+m3),0))
481 #endif
482 
483 /*MC
484    PetscMalloc5 - Allocates 5 chunks of  memory
485 
486    Input Parameter:
487 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
488 .  t1 - type of first memory elements
489 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
490 .  t2 - type of second memory elements
491 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
492 .  t3 - type of third memory elements
493 .  m4 - number of elements to allocate in 4th chunk  (may be zero)
494 .  t4 - type of fourth memory elements
495 .  m5 - number of elements to allocate in 5th chunk  (may be zero)
496 -  t5 - type of fifth memory elements
497 
498    Output Parameter:
499 +  r1 - memory allocated in first chunk
500 .  r2 - memory allocated in second chunk
501 .  r3 - memory allocated in third chunk
502 .  r4 - memory allocated in fourth chunk
503 -  r5 - memory allocated in fifth chunk
504 
505    Synopsis:
506    PetscErrorCode PetscMalloc5(size_t m1,type, t1,void **r1,size_t m2,type t2,void **r2,size_t m3,type t3,void **r3,size_t m4,type t4,void **r4,size_t m5,type t5,void **r5)
507 
508    Level: developer
509 
510    Notes: Memory of first chunk is always allocated at least double aligned
511 
512 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree3(), PetscFree4(), PetscFree5()
513 
514   Concepts: memory allocation
515 
516 M*/
517 #if defined(PETSC_USE_DEBUG)
518 #define PetscMalloc5(m1,t1,r1,m2,t2,r2,m3,t3,r3,m4,t4,r4,m5,t5,r5) (PetscMalloc((m1)*sizeof(t1),r1) || PetscMalloc((m2)*sizeof(t2),r2) || PetscMalloc((m3)*sizeof(t3),r3) || PetscMalloc((m4)*sizeof(t4),r4) || PetscMalloc((m5)*sizeof(t5),r5))
519 #else
520 #define PetscMalloc5(m1,t1,r1,m2,t2,r2,m3,t3,r3,m4,t4,r4,m5,t5,r5) (PetscMalloc((m1)*sizeof(t1)+(m2)*sizeof(t2)+(m3)*sizeof(t3)+(m4)*sizeof(t4)+(m5)*sizeof(t5),r1) || (*(r2) = (t2*)(*(r1)+m1),*(r3) = (t3*)(*(r2)+m2),*(r4) = (t4*)(*(r3)+m3),*(r5) = (t5*)(*(r4)+m4),0))
521 #endif
522 
523 
524 /*MC
525    PetscMalloc6 - Allocates 6 chunks of  memory
526 
527    Input Parameter:
528 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
529 .  t1 - type of first memory elements
530 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
531 .  t2 - type of second memory elements
532 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
533 .  t3 - type of third memory elements
534 .  m4 - number of elements to allocate in 4th chunk  (may be zero)
535 .  t4 - type of fourth memory elements
536 .  m5 - number of elements to allocate in 5th chunk  (may be zero)
537 .  t5 - type of fifth memory elements
538 .  m6 - number of elements to allocate in 6th chunk  (may be zero)
539 -  t6 - type of sixth memory elements
540 
541    Output Parameter:
542 +  r1 - memory allocated in first chunk
543 .  r2 - memory allocated in second chunk
544 .  r3 - memory allocated in third chunk
545 .  r4 - memory allocated in fourth chunk
546 .  r5 - memory allocated in fifth chunk
547 -  r6 - memory allocated in sixth chunk
548 
549    Synopsis:
550    PetscErrorCode PetscMalloc6(size_t m1,type, t1,void **r1,size_t m2,type t2,void **r2,size_t m3,type t3,void **r3,size_t m4,type t4,void **r4,size_t m5,type t5,void **r5,size_t m6,type t6,void **r6)
551 
552    Level: developer
553 
554    Notes: Memory of first chunk is always allocated at least double aligned
555 
556 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree3(), PetscFree4(), PetscFree5(), PetscFree6()
557 
558   Concepts: memory allocation
559 
560 M*/
561 #if defined(PETSC_USE_DEBUG)
562 #define PetscMalloc6(m1,t1,r1,m2,t2,r2,m3,t3,r3,m4,t4,r4,m5,t5,r5,m6,t6,r6) (PetscMalloc((m1)*sizeof(t1),r1) || PetscMalloc((m2)*sizeof(t2),r2) || PetscMalloc((m3)*sizeof(t3),r3) || PetscMalloc((m4)*sizeof(t4),r4) || PetscMalloc((m5)*sizeof(t5),r5) || PetscMalloc((m6)*sizeof(t6),r6))
563 #else
564 #define PetscMalloc6(m1,t1,r1,m2,t2,r2,m3,t3,r3,m4,t4,r4,m5,t5,r5,m6,t6,r6) (PetscMalloc((m1)*sizeof(t1)+(m2)*sizeof(t2)+(m3)*sizeof(t3)+(m4)*sizeof(t4)+(m5)*sizeof(t5)+(m6)*sizeof(t6),r1) || (*(r2) = (t2*)(*(r1)+m1),*(r3) = (t3*)(*(r2)+m2),*(r4) = (t4*)(*(r3)+m3),*(r5) = (t5*)(*(r4)+m4),*(r6) = (t6*)(*(r5)+m5),0))
565 #endif
566 
567 /*MC
568    PetscMalloc7 - Allocates 7 chunks of  memory
569 
570    Input Parameter:
571 +  m1 - number of elements to allocate in 1st chunk  (may be zero)
572 .  t1 - type of first memory elements
573 .  m2 - number of elements to allocate in 2nd chunk  (may be zero)
574 .  t2 - type of second memory elements
575 .  m3 - number of elements to allocate in 3rd chunk  (may be zero)
576 .  t3 - type of third memory elements
577 .  m4 - number of elements to allocate in 4th chunk  (may be zero)
578 .  t4 - type of fourth memory elements
579 .  m5 - number of elements to allocate in 5th chunk  (may be zero)
580 .  t5 - type of fifth memory elements
581 .  m6 - number of elements to allocate in 6th chunk  (may be zero)
582 .  t6 - type of sixth memory elements
583 .  m7 - number of elements to allocate in 7th chunk  (may be zero)
584 -  t7 - type of sixth memory elements
585 
586    Output Parameter:
587 +  r1 - memory allocated in first chunk
588 .  r2 - memory allocated in second chunk
589 .  r3 - memory allocated in third chunk
590 .  r4 - memory allocated in fourth chunk
591 .  r5 - memory allocated in fifth chunk
592 .  r6 - memory allocated in sixth chunk
593 -  r7 - memory allocated in sixth chunk
594 
595    Synopsis:
596    PetscErrorCode PetscMalloc7(size_t m1,type, t1,void **r1,size_t m2,type t2,void **r2,size_t m3,type t3,void **r3,size_t m4,type t4,void **r4,size_t m5,type t5,void **r5,size_t m6,type t6,void **r6,size_t m7,type t7,void **r7)
597 
598    Level: developer
599 
600    Notes: Memory of first chunk is always allocated at least double aligned
601 
602 .seealso: PetscFree(), PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree3(), PetscFree4(), PetscFree5(), PetscFree6(), PetscFree7()
603 
604   Concepts: memory allocation
605 
606 M*/
607 #if defined(PETSC_USE_DEBUG)
608 #define PetscMalloc7(m1,t1,r1,m2,t2,r2,m3,t3,r3,m4,t4,r4,m5,t5,r5,m6,t6,r6,m7,t7,r7) (PetscMalloc((m1)*sizeof(t1),r1) || PetscMalloc((m2)*sizeof(t2),r2) || PetscMalloc((m3)*sizeof(t3),r3) || PetscMalloc((m4)*sizeof(t4),r4) || PetscMalloc((m5)*sizeof(t5),r5) || PetscMalloc((m6)*sizeof(t6),r6) || PetscMalloc((m7)*sizeof(t7),r7))
609 #else
610 #define PetscMalloc7(m1,t1,r1,m2,t2,r2,m3,t3,r3,m4,t4,r4,m5,t5,r5,m6,t6,r6,m7,t7,r7) (PetscMalloc((m1)*sizeof(t1)+(m2)*sizeof(t2)+(m3)*sizeof(t3)+(m4)*sizeof(t4)+(m5)*sizeof(t5)+(m6)*sizeof(t6)+(m7)*sizeof(t7),r1) || (*(r2) = (t2*)(*(r1)+m1),*(r3) = (t3*)(*(r2)+m2),*(r4) = (t4*)(*(r3)+m3),*(r5) = (t5*)(*(r4)+m4),*(r6) = (t6*)(*(r5)+m5),*(r7) = (t7*)(*(r6)+m6),0))
611 #endif
612 
613 /*MC
614    PetscNew - Allocates memory of a particular type, Zeros the memory!
615 
616    Input Parameter:
617 . type - structure name of space to be allocated. Memory of size sizeof(type) is allocated
618 
619    Output Parameter:
620 .  result - memory allocated
621 
622    Synopsis:
623    PetscErrorCode PetscNew(struct type,((type *))result)
624 
625    Level: beginner
626 
627 .seealso: PetscFree(), PetscMalloc()
628 
629   Concepts: memory allocation
630 
631 M*/
632 #define PetscNew(A,b)        (PetscMalloc(sizeof(A),(b)) || PetscMemzero(*(b),sizeof(A)))
633 
634 /*MC
635    PetscFree - Frees memory
636 
637    Input Parameter:
638 .   memory - memory to free
639 
640    Synopsis:
641    PetscErrorCode PetscFree(void *memory)
642 
643    Level: beginner
644 
645    Notes: Memory must have been obtained with PetscNew() or PetscMalloc()
646 
647 .seealso: PetscNew(), PetscMalloc()
648 
649   Concepts: memory allocation
650 
651 M*/
652 #define PetscFree(a)   ((a) ? ((*PetscTrFree)((a),__LINE__,__FUNCT__,__FILE__,__SDIR__) || ((a = 0),0)) : 0)
653 
654 /*MC
655    PetscFree2 - Frees 2 chunks of memory obtained with PetscMalloc2()
656 
657    Input Parameter:
658 +   memory1 - memory to free
659 -   memory2 - 2nd memory to free
660 
661 
662    Synopsis:
663    PetscErrorCode PetscFree2(void *memory1,void *memory2)
664 
665    Level: developer
666 
667    Notes: Memory must have been obtained with PetscMalloc2()
668 
669 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree()
670 
671   Concepts: memory allocation
672 
673 M*/
674 #if defined(PETSC_USE_DEBUG)
675 #define PetscFree2(m1,m2)   (PetscFree(m2) || PetscFree(m1))
676 #else
677 #define PetscFree2(m1,m2)   (PetscFree(m1))
678 #endif
679 
680 /*MC
681    PetscFree3 - Frees 3 chunks of memory obtained with PetscMalloc3()
682 
683    Input Parameter:
684 +   memory1 - memory to free
685 .   memory2 - 2nd memory to free
686 -   memory3 - 3rd memory to free
687 
688 
689    Synopsis:
690    PetscErrorCode PetscFree3(void *memory1,void *memory2,void *memory3)
691 
692    Level: developer
693 
694    Notes: Memory must have been obtained with PetscMalloc3()
695 
696 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3()
697 
698   Concepts: memory allocation
699 
700 M*/
701 #if defined(PETSC_USE_DEBUG)
702 #define PetscFree3(m1,m2,m3)   (PetscFree(m3) || PetscFree(m2) || PetscFree(m1))
703 #else
704 #define PetscFree3(m1,m2,m3)   (PetscFree(m1))
705 #endif
706 
707 /*MC
708    PetscFree4 - Frees 4 chunks of memory obtained with PetscMalloc4()
709 
710    Input Parameter:
711 +   m1 - memory to free
712 .   m2 - 2nd memory to free
713 .   m3 - 3rd memory to free
714 -   m4 - 4th memory to free
715 
716 
717    Synopsis:
718    PetscErrorCode PetscFree4(void *m1,void *m2,void *m3,void *m4)
719 
720    Level: developer
721 
722    Notes: Memory must have been obtained with PetscMalloc4()
723 
724 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4()
725 
726   Concepts: memory allocation
727 
728 M*/
729 #if defined(PETSC_USE_DEBUG)
730 #define PetscFree4(m1,m2,m3,m4)   (PetscFree(m4) || PetscFree(m3) || PetscFree(m2) || PetscFree(m1))
731 #else
732 #define PetscFree4(m1,m2,m3,m4)   (PetscFree(m1))
733 #endif
734 
735 /*MC
736    PetscFree5 - Frees 5 chunks of memory obtained with PetscMalloc5()
737 
738    Input Parameter:
739 +   m1 - memory to free
740 .   m2 - 2nd memory to free
741 .   m3 - 3rd memory to free
742 .   m4 - 4th memory to free
743 -   m5 - 5th memory to free
744 
745 
746    Synopsis:
747    PetscErrorCode PetscFree5(void *m1,void *m2,void *m3,void *m4,void *m5)
748 
749    Level: developer
750 
751    Notes: Memory must have been obtained with PetscMalloc5()
752 
753 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4(), PetscMalloc5()
754 
755   Concepts: memory allocation
756 
757 M*/
758 #if defined(PETSC_USE_DEBUG)
759 #define PetscFree5(m1,m2,m3,m4,m5)   (PetscFree(m5) || PetscFree(m4) || PetscFree(m3) || PetscFree(m2) || PetscFree(m1))
760 #else
761 #define PetscFree5(m1,m2,m3,m4,m5)   (PetscFree(m1))
762 #endif
763 
764 
765 /*MC
766    PetscFree6 - Frees 6 chunks of memory obtained with PetscMalloc6()
767 
768    Input Parameter:
769 +   m1 - memory to free
770 .   m2 - 2nd memory to free
771 .   m3 - 3rd memory to free
772 .   m4 - 4th memory to free
773 .   m5 - 5th memory to free
774 -   m6 - 6th memory to free
775 
776 
777    Synopsis:
778    PetscErrorCode PetscFree6(void *m1,void *m2,void *m3,void *m4,void *m5,void *m6)
779 
780    Level: developer
781 
782    Notes: Memory must have been obtained with PetscMalloc6()
783 
784 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4(), PetscMalloc5(), PetscMalloc6()
785 
786   Concepts: memory allocation
787 
788 M*/
789 #if defined(PETSC_USE_DEBUG)
790 #define PetscFree6(m1,m2,m3,m4,m5,m6)   (PetscFree(m6) || PetscFree(m5) || PetscFree(m4) || PetscFree(m3) || PetscFree(m2) || PetscFree(m1))
791 #else
792 #define PetscFree6(m1,m2,m3,m4,m5,m6)   (PetscFree(m1))
793 #endif
794 
795 /*MC
796    PetscFree7 - Frees 7 chunks of memory obtained with PetscMalloc7()
797 
798    Input Parameter:
799 +   m1 - memory to free
800 .   m2 - 2nd memory to free
801 .   m3 - 3rd memory to free
802 .   m4 - 4th memory to free
803 .   m5 - 5th memory to free
804 .   m6 - 6th memory to free
805 -   m7 - 7th memory to free
806 
807 
808    Synopsis:
809    PetscErrorCode PetscFree7(void *m1,void *m2,void *m3,void *m4,void *m5,void *m6,void *m7)
810 
811    Level: developer
812 
813    Notes: Memory must have been obtained with PetscMalloc6()
814 
815 .seealso: PetscNew(), PetscMalloc(), PetscMalloc2(), PetscFree(), PetscMalloc3(), PetscMalloc4(), PetscMalloc5(), PetscMalloc6(),
816           PetscMalloc7()
817 
818   Concepts: memory allocation
819 
820 M*/
821 #if defined(PETSC_USE_DEBUG)
822 #define PetscFree7(m1,m2,m3,m4,m5,m6,m7)   (PetscFree(m7) || PetscFree(m6) || PetscFree(m5) || PetscFree(m4) || PetscFree(m3) || PetscFree(m2) || PetscFree(m1))
823 #else
824 #define PetscFree7(m1,m2,m3,m4,m5,m6,m7)   (PetscFree(m1))
825 #endif
826 
827 EXTERN PETSC_DLLEXPORT PetscErrorCode (*PetscTrMalloc)(size_t,int,const char[],const char[],const char[],void**);
828 EXTERN PETSC_DLLEXPORT PetscErrorCode (*PetscTrFree)(void*,int,const char[],const char[],const char[]);
829 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscSetMalloc(PetscErrorCode (*)(size_t,int,const char[],const char[],const char[],void**),PetscErrorCode (*)(void*,int,const char[],const char[],const char[]));
830 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscClearMalloc(void);
831 
832 /*
833    Routines for tracing memory corruption/bleeding with default PETSc
834    memory allocation
835 */
836 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscMallocDump(FILE *);
837 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscMallocDumpLog(FILE *);
838 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscMallocGetCurrentUsage(PetscLogDouble *);
839 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscMallocGetMaximumUsage(PetscLogDouble *);
840 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscMallocDebug(PetscTruth);
841 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscMallocValidate(int,const char[],const char[],const char[]);
842 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscMallocSetDumpLog(void);
843 
844 
845 /*
846     Variable type where we stash PETSc object pointers in Fortran.
847     Assumes that sizeof(long) == sizeof(void*)which is true on
848     all machines that we know.
849 */
850 #define PetscFortranAddr   long
851 
852 /*E
853     PetscDataType - Used for handling different basic data types.
854 
855    Level: beginner
856 
857 .seealso: PetscBinaryRead(), PetscBinaryWrite(), PetscDataTypeToMPIDataType(),
858           PetscDataTypeGetSize()
859 
860 E*/
861 typedef enum {PETSC_INT = 0,PETSC_DOUBLE = 1,PETSC_COMPLEX = 2,
862               PETSC_LONG = 3 ,PETSC_SHORT = 4,PETSC_FLOAT = 5,
863               PETSC_CHAR = 6,PETSC_LOGICAL = 7,PETSC_ENUM = 8} PetscDataType;
864 extern const char *PetscDataTypes[];
865 
866 #if defined(PETSC_USE_COMPLEX)
867 #define PETSC_SCALAR PETSC_COMPLEX
868 #else
869 #if defined(PETSC_USE_SINGLE)
870 #define PETSC_SCALAR PETSC_FLOAT
871 #else
872 #define PETSC_SCALAR PETSC_DOUBLE
873 #endif
874 #endif
875 #if defined(PETSC_USE_SINGLE)
876 #define PETSC_REAL PETSC_FLOAT
877 #else
878 #define PETSC_REAL PETSC_DOUBLE
879 #endif
880 #define PETSC_FORTRANADDR PETSC_LONG
881 
882 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscDataTypeToMPIDataType(PetscDataType,MPI_Datatype*);
883 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscDataTypeGetSize(PetscDataType,PetscInt*);
884 
885 /*
886     Basic memory and string operations. These are usually simple wrappers
887    around the basic Unix system calls, but a few of them have additional
888    functionality and/or error checking.
889 */
890 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscMemcpy(void*,const void *,size_t);
891 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscBitMemcpy(void*,PetscInt,const void*,PetscInt,PetscInt,PetscDataType);
892 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscMemmove(void*,void *,size_t);
893 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscMemzero(void*,size_t);
894 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscMemcmp(const void*,const void*,size_t,PetscTruth *);
895 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscStrlen(const char[],size_t*);
896 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscStrcmp(const char[],const char[],PetscTruth *);
897 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscStrgrt(const char[],const char[],PetscTruth *);
898 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscStrcasecmp(const char[],const char[],PetscTruth*);
899 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscStrncmp(const char[],const char[],size_t,PetscTruth*);
900 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscStrcpy(char[],const char[]);
901 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscStrcat(char[],const char[]);
902 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscStrncat(char[],const char[],size_t);
903 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscStrncpy(char[],const char[],size_t);
904 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscStrchr(const char[],char,char *[]);
905 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscStrtolower(char[]);
906 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscStrrchr(const char[],char,char *[]);
907 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscStrstr(const char[],const char[],char *[]);
908 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscStrallocpy(const char[],char *[]);
909 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscStrreplace(MPI_Comm,const char[],char[],size_t);
910 #define      PetscStrfree(a) ((a) ? PetscFree(a) : 0)
911 /*S
912     PetscToken - 'Token' used for managing tokenizing strings
913 
914   Level: intermediate
915 
916 .seealso: PetscTokenCreate(), PetscTokenFind(), PetscTokenDestroy()
917 S*/
918 typedef struct {char token;char *array;char *current;} PetscToken;
919 
920 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscTokenCreate(const char[],const char,PetscToken**);
921 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscTokenFind(PetscToken*,char *[]);
922 EXTERN PetscErrorCode PETSC_DLLEXPORT   PetscTokenDestroy(PetscToken*);
923 
924 /*
925    These are  MPI operations for MPI_Allreduce() etc
926 */
927 EXTERN PETSC_DLLEXPORT MPI_Op PetscMaxSum_Op;
928 #if defined(PETSC_USE_COMPLEX)
929 EXTERN PETSC_DLLEXPORT MPI_Op PetscSum_Op;
930 #else
931 #define PetscSum_Op MPI_SUM
932 #endif
933 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscMaxSum(MPI_Comm,const PetscInt[],PetscInt*,PetscInt*);
934 
935 /*S
936      PetscObject - any PETSc object, PetscViewer, Mat, Vec, KSP etc
937 
938    Level: beginner
939 
940    Note: This is the base class from which all objects appear.
941 
942 .seealso:  PetscObjectDestroy(), PetscObjectView(), PetscObjectGetName(), PetscObjectSetName()
943 S*/
944 typedef struct _p_PetscObject* PetscObject;
945 
946 /*S
947      PetscFList - Linked list of functions, possibly stored in dynamic libraries, accessed
948       by string name
949 
950    Level: advanced
951 
952 .seealso:  PetscFListAdd(), PetscFListDestroy()
953 S*/
954 typedef struct _PetscFList *PetscFList;
955 
956 #include "petscviewer.h"
957 #include "petscoptions.h"
958 
959 /*
960    Routines that get memory usage information from the OS
961 */
962 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscMemoryGetCurrentUsage(PetscLogDouble *);
963 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscMemoryGetMaximumUsage(PetscLogDouble *);
964 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscMemorySetGetMaximumUsage(void);
965 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscMemoryShowUsage(PetscViewer,const char[]);
966 
967 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscLogInfoAllow(PetscTruth,const char []);
968 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscGetTime(PetscLogDouble*);
969 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscGetCPUTime(PetscLogDouble*);
970 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscSleep(int);
971 
972 /*
973     Initialization of PETSc
974 */
975 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscInitialize(int*,char***,const char[],const char[]);
976 PetscPolymorphicSubroutine(PetscInitialize,(int *argc,char ***args),(argc,args,PETSC_NULL,PETSC_NULL))
977 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscInitializeNoArguments(void);
978 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscInitialized(PetscTruth *);
979 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscFinalized(PetscTruth *);
980 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscFinalize(void);
981 EXTERN PetscErrorCode PetscInitializeFortran(void);
982 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscGetArgs(int*,char ***);
983 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscEnd(void);
984 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscInitializePackage(char *);
985 typedef void (**PetscVoidFunction)(void);
986 
987 /*
988    PetscTryMethod - Queries an object for a method, if it exists then calls it.
989               These are intended to be used only inside PETSc functions.
990 */
991 #define  PetscTryMethod(obj,A,B,C) \
992   0;{ PetscErrorCode (*f)B, __ierr; \
993     __ierr = PetscObjectQueryFunction((PetscObject)obj,#A,(PetscVoidFunction)&f);CHKERRQ(__ierr); \
994     if (f) {__ierr = (*f)C;CHKERRQ(__ierr);}\
995   }
996 #define  PetscUseMethod(obj,A,B,C) \
997   0;{ PetscErrorCode (*f)B, __ierr; \
998     __ierr = PetscObjectQueryFunction((PetscObject)obj,A,(PetscVoidFunction)&f);CHKERRQ(__ierr); \
999     if (f) {__ierr = (*f)C;CHKERRQ(__ierr);}\
1000     else {SETERRQ1(PETSC_ERR_SUP,"Cannot locate function %s in object",A);} \
1001   }
1002 /*
1003     Functions that can act on any PETSc object.
1004 */
1005 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectDestroy(PetscObject);
1006 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectExists(PetscObject,PetscTruth*);
1007 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectGetComm(PetscObject,MPI_Comm *);
1008 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectGetCookie(PetscObject,int *);
1009 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectGetType(PetscObject,int *);
1010 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectSetName(PetscObject,const char[]);
1011 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectGetName(PetscObject,char*[]);
1012 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectReference(PetscObject);
1013 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectGetReference(PetscObject,PetscInt*);
1014 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectDereference(PetscObject);
1015 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectGetNewTag(PetscObject,PetscMPIInt *);
1016 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscCommGetNewTag(MPI_Comm,PetscMPIInt *);
1017 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectView(PetscObject,PetscViewer);
1018 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectCompose(PetscObject,const char[],PetscObject);
1019 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectQuery(PetscObject,const char[],PetscObject *);
1020 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectComposeFunction(PetscObject,const char[],const char[],void (*)(void));
1021 
1022 typedef void (*FCNVOID)(void); /* cast in next macro should never be extern C */
1023 typedef PetscErrorCode (*FCNINTVOID)(void); /* used in casts to make sure they are not extern C */
1024 /*MC
1025    PetscObjectComposeFunctionDynamic - Associates a function with a given PETSc object.
1026 
1027    Collective on PetscObject
1028 
1029    Input Parameters:
1030 +  obj - the PETSc object; this must be cast with a (PetscObject), for example,
1031          PetscObjectCompose((PetscObject)mat,...);
1032 .  name - name associated with the child function
1033 .  fname - name of the function
1034 -  ptr - function pointer (or PETSC_NULL if using dynamic libraries)
1035 
1036    Level: advanced
1037 
1038     Synopsis:
1039     PetscErrorCode PetscObjectComposeFunctionDynamic(PetscObject obj,const char name[],const char fname[],void *ptr)
1040 
1041    Notes:
1042    To remove a registered routine, pass in a PETSC_NULL rname and fnc().
1043 
1044    PetscObjectComposeFunctionDynamic() can be used with any PETSc object (such as
1045    Mat, Vec, KSP, SNES, etc.) or any user-provided object.
1046 
1047    The composed function must be wrapped in a EXTERN_C_BEGIN/END for this to
1048    work in C++/complex with dynamic link libraries (PETSC_USE_DYNAMIC_LIBRARIES)
1049    enabled.
1050 
1051    Concepts: objects^composing functions
1052    Concepts: composing functions
1053    Concepts: functions^querying
1054    Concepts: objects^querying
1055    Concepts: querying objects
1056 
1057 .seealso: PetscObjectQueryFunction()
1058 M*/
1059 #if defined(PETSC_USE_DYNAMIC_LIBRARIES)
1060 #define PetscObjectComposeFunctionDynamic(a,b,c,d) PetscObjectComposeFunction(a,b,c,0)
1061 #else
1062 #define PetscObjectComposeFunctionDynamic(a,b,c,d) PetscObjectComposeFunction(a,b,c,(FCNVOID)(d))
1063 #endif
1064 
1065 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectQueryFunction(PetscObject,const char[],void (**)(void));
1066 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectSetOptionsPrefix(PetscObject,const char[]);
1067 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectAppendOptionsPrefix(PetscObject,const char[]);
1068 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectPrependOptionsPrefix(PetscObject,const char[]);
1069 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectGetOptionsPrefix(PetscObject,char*[]);
1070 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectPublish(PetscObject);
1071 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectChangeTypeName(PetscObject,const char[]);
1072 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectRegisterDestroy(PetscObject);
1073 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectRegisterDestroyAll(void);
1074 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectName(PetscObject);
1075 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscTypeCompare(PetscObject,const char[],PetscTruth*);
1076 
1077 /*
1078     Defines PETSc error handling.
1079 */
1080 #include "petscerror.h"
1081 
1082 /*S
1083      PetscOList - Linked list of PETSc objects, accessable by string name
1084 
1085    Level: advanced
1086 
1087 .seealso:  PetscOListAdd(), PetscOListDestroy(), PetscOListFind()
1088 S*/
1089 typedef struct _PetscOList *PetscOList;
1090 
1091 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscOListDestroy(PetscOList *);
1092 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscOListFind(PetscOList,const char[],PetscObject*);
1093 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscOListReverseFind(PetscOList,PetscObject,char**);
1094 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscOListAdd(PetscOList *,const char[],PetscObject);
1095 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscOListDuplicate(PetscOList,PetscOList *);
1096 
1097 /*
1098     Dynamic library lists. Lists of names of routines in dynamic
1099   link libraries that will be loaded as needed.
1100 */
1101 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscFListAdd(PetscFList*,const char[],const char[],void (*)(void));
1102 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscFListDestroy(PetscFList*);
1103 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscFListFind(MPI_Comm,PetscFList,const char[],void (**)(void));
1104 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscFListPrintTypes(MPI_Comm,FILE*,const char[],const char[],const char[],const char[],PetscFList);
1105 #if defined(PETSC_USE_DYNAMIC_LIBRARIES)
1106 #define    PetscFListAddDynamic(a,b,p,c) PetscFListAdd(a,b,p,0)
1107 #else
1108 #define    PetscFListAddDynamic(a,b,p,c) PetscFListAdd(a,b,p,(void (*)(void))c)
1109 #endif
1110 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscFListDuplicate(PetscFList,PetscFList *);
1111 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscFListView(PetscFList,PetscViewer);
1112 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscFListConcat(const char [],const char [],char []);
1113 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscFListGet(PetscFList,char ***,int*);
1114 
1115 /*S
1116      PetscDLLibraryList - Linked list of dynamics libraries to search for functions
1117 
1118    Level: advanced
1119 
1120    PETSC_USE_DYNAMIC_LIBRARIES must be defined in petscconf.h to use dynamic libraries
1121 
1122 .seealso:  PetscDLLibraryOpen()
1123 S*/
1124 typedef struct _PetscDLLibraryList *PetscDLLibraryList;
1125 extern PetscDLLibraryList DLLibrariesLoaded;
1126 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscDLLibraryRetrieve(MPI_Comm,const char[],char *,int,PetscTruth *);
1127 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscDLLibraryOpen(MPI_Comm,const char[],void **);
1128 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscDLLibrarySym(MPI_Comm,PetscDLLibraryList *,const char[],const char[],void **);
1129 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscDLLibraryAppend(MPI_Comm,PetscDLLibraryList *,const char[]);
1130 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscDLLibraryPrepend(MPI_Comm,PetscDLLibraryList *,const char[]);
1131 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscDLLibraryClose(PetscDLLibraryList);
1132 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscDLLibraryPrintPath(void);
1133 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscDLLibraryGetInfo(void*,const char[],const char *[]);
1134 
1135 /*
1136     Mechanism for translating PETSc object representations between languages
1137     Not currently used.
1138 */
1139 typedef enum {PETSC_LANGUAGE_C,PETSC_LANGUAGE_CXX} PetscLanguage;
1140 #define PETSC_LANGUAGE_F77 PETSC_LANGUAGE_C
1141 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectComposeLanguage(PetscObject,PetscLanguage,void *);
1142 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectQueryLanguage(PetscObject,PetscLanguage,void **);
1143 
1144 /*
1145      Useful utility routines
1146 */
1147 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscSplitOwnership(MPI_Comm,PetscInt*,PetscInt*);
1148 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscSplitOwnershipBlock(MPI_Comm,PetscInt,PetscInt*,PetscInt*);
1149 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscSequentialPhaseBegin(MPI_Comm,PetscMPIInt);
1150 PetscPolymorphicSubroutine(PetscSequentialPhaseBegin,(MPI_Comm comm),(comm,1))
1151 PetscPolymorphicSubroutine(PetscSequentialPhaseBegin,(void),(PETSC_COMM_WORLD,1))
1152 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscSequentialPhaseEnd(MPI_Comm,PetscMPIInt);
1153 PetscPolymorphicSubroutine(PetscSequentialPhaseEnd,(MPI_Comm comm),(comm,1))
1154 PetscPolymorphicSubroutine(PetscSequentialPhaseEnd,(void),(PETSC_COMM_WORLD,1))
1155 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscBarrier(PetscObject);
1156 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscMPIDump(FILE*);
1157 
1158 #define PetscNot(a) ((a) ? PETSC_FALSE : PETSC_TRUE)
1159 /*
1160     Defines basic graphics available from PETSc.
1161 */
1162 #include "petscdraw.h"
1163 
1164 /*
1165     Defines the base data structures for all PETSc objects
1166 */
1167 #include "petschead.h"
1168 
1169 /*
1170      Defines PETSc profiling.
1171 */
1172 #include "petsclog.h"
1173 
1174 /*
1175           For locking, unlocking and destroying AMS memories associated with
1176     PETSc objects. Not currently used.
1177 */
1178 #define PetscPublishAll(v)           0
1179 #define PetscObjectTakeAccess(obj)   0
1180 #define PetscObjectGrantAccess(obj)  0
1181 #define PetscObjectDepublish(obj)    0
1182 
1183 
1184 
1185 /*
1186       This code allows one to pass a MPI communicator between
1187     C and Fortran. MPI 2.0 defines a standard API for doing this.
1188     The code here is provided to allow PETSc to work with MPI 1.1
1189     standard MPI libraries.
1190 */
1191 EXTERN PetscErrorCode MPICCommToFortranComm(MPI_Comm,int *);
1192 EXTERN PetscErrorCode MPIFortranCommToCComm(int,MPI_Comm*);
1193 
1194 /*
1195       Simple PETSc parallel IO for ASCII printing
1196 */
1197 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscFixFilename(const char[],char[]);
1198 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscFOpen(MPI_Comm,const char[],const char[],FILE**);
1199 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscFClose(MPI_Comm,FILE*);
1200 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscFPrintf(MPI_Comm,FILE*,const char[],...) PETSC_PRINTF_FORMAT_CHECK(3,4);
1201 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscPrintf(MPI_Comm,const char[],...)  PETSC_PRINTF_FORMAT_CHECK(2,3);
1202 
1203 /* These are used internally by PETSc ASCII IO routines*/
1204 #include <stdarg.h>
1205 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscVSNPrintf(char*,size_t,const char*,va_list);
1206 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscVFPrintf(FILE*,const char*,va_list);
1207 
1208 /*MC
1209     PetscErrorPrintf - Prints error messages.
1210 
1211     Not Collective
1212 
1213    Synopsis:
1214      PetscErrorCode (*PetscErrorPrintf)(const char format[],...);
1215 
1216     Input Parameters:
1217 .   format - the usual printf() format string
1218 
1219    Options Database Keys:
1220 .    -error_output_stderr - cause error messages to be printed to stderr instead of the
1221          (default) stdout
1222 
1223 
1224    Level: developer
1225 
1226     Fortran Note:
1227     This routine is not supported in Fortran.
1228 
1229     Concepts: error messages^printing
1230     Concepts: printing^error messages
1231 
1232 .seealso: PetscFPrintf(), PetscSynchronizedPrintf(), PetscHelpPrintf()
1233 M*/
1234 EXTERN PETSC_DLLEXPORT PetscErrorCode (*PetscErrorPrintf)(const char[],...);
1235 
1236 /*MC
1237     PetscHelpPrintf - Prints help messages.
1238 
1239     Not Collective
1240 
1241    Synopsis:
1242      PetscErrorCode (*PetscHelpPrintf)(const char format[],...);
1243 
1244     Input Parameters:
1245 .   format - the usual printf() format string
1246 
1247    Level: developer
1248 
1249     Fortran Note:
1250     This routine is not supported in Fortran.
1251 
1252     Concepts: help messages^printing
1253     Concepts: printing^help messages
1254 
1255 .seealso: PetscFPrintf(), PetscSynchronizedPrintf(), PetscErrorPrintf()
1256 M*/
1257 EXTERN PETSC_DLLEXPORT PetscErrorCode  (*PetscHelpPrintf)(MPI_Comm,const char[],...);
1258 
1259 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscPOpen(MPI_Comm,const char[],const char[],const char[],FILE **);
1260 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscPClose(MPI_Comm,FILE*);
1261 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscSynchronizedPrintf(MPI_Comm,const char[],...) PETSC_PRINTF_FORMAT_CHECK(2,3);
1262 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscSynchronizedFPrintf(MPI_Comm,FILE*,const char[],...) PETSC_PRINTF_FORMAT_CHECK(3,4);
1263 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscSynchronizedFlush(MPI_Comm);
1264 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscSynchronizedFGets(MPI_Comm,FILE*,size_t,char[]);
1265 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscStartMatlab(MPI_Comm,const char[],const char[],FILE**);
1266 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscStartJava(MPI_Comm,const char[],const char[],FILE**);
1267 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscGetPetscDir(const char*[]);
1268 
1269 EXTERN PetscErrorCode PETSC_DLLEXPORT  PetscPopUpSelect(MPI_Comm,char*,char*,int,char**,int*);
1270 /*S
1271      PetscObjectContainer - Simple PETSc object that contains a pointer to any required data
1272 
1273    Level: advanced
1274 
1275 .seealso:  PetscObject, PetscObjectContainerCreate()
1276 S*/
1277 typedef struct _p_PetscObjectContainer*  PetscObjectContainer;
1278 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectContainerGetPointer(PetscObjectContainer,void **);
1279 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectContainerSetPointer(PetscObjectContainer,void *);
1280 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectContainerDestroy(PetscObjectContainer);
1281 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectContainerCreate(MPI_Comm comm,PetscObjectContainer *);
1282 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscObjectContainerSetUserDestroy(PetscObjectContainer, PetscErrorCode (*)(void*));
1283 
1284 /*
1285    For use in debuggers
1286 */
1287 extern PETSC_DLLEXPORT PetscMPIInt PetscGlobalRank;
1288 extern PETSC_DLLEXPORT PetscMPIInt PetscGlobalSize;
1289 
1290 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscIntView(PetscInt,PetscInt[],PetscViewer);
1291 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscRealView(PetscInt,PetscReal[],PetscViewer);
1292 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscScalarView(PetscInt,PetscScalar[],PetscViewer);
1293 
1294 /*
1295     Allows accessing Matlab Engine
1296 */
1297 #include "petscmatlab.h"
1298 
1299 /*
1300     C code optimization is often enhanced by telling the compiler
1301   that certain pointer arguments to functions are not aliased to
1302   to other arguments. This is not yet ANSI C standard so we define
1303   the macro "restrict" to indicate that the variable is not aliased
1304   to any other argument.
1305 */
1306 #if defined(PETSC_HAVE_RESTRICT) && !defined(__cplusplus)
1307 #define restrict _Restrict
1308 #else
1309 #if defined(restrict)
1310 #undef restrict
1311 #endif
1312 #define restrict
1313 #endif
1314 
1315 /*
1316       Determine if some of the kernel computation routines use
1317    Fortran (rather than C) for the numerical calculations. On some machines
1318    and compilers (like complex numbers) the Fortran version of the routines
1319    is faster than the C/C++ versions. The flag PETSC_USE_FORTRAN_KERNELS
1320    would be set in the petscconf.h file
1321 */
1322 #if defined(PETSC_USE_FORTRAN_KERNELS)
1323 
1324 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTAIJ)
1325 #define PETSC_USE_FORTRAN_KERNEL_MULTAIJ
1326 #endif
1327 
1328 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTTRANSPOSEAIJ)
1329 #define PETSC_USE_FORTRAN_KERNEL_MULTTRANSPOSEAIJ
1330 #endif
1331 
1332 #if !defined(PETSC_USE_FORTRAN_KERNEL_NORM)
1333 #define PETSC_USE_FORTRAN_KERNEL_NORM
1334 #endif
1335 
1336 #if !defined(PETSC_USE_FORTRAN_KERNEL_MAXPY)
1337 #define PETSC_USE_FORTRAN_KERNEL_MAXPY
1338 #endif
1339 
1340 #if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ)
1341 #define PETSC_USE_FORTRAN_KERNEL_SOLVEAIJ
1342 #endif
1343 
1344 #if !defined(PETSC_USE_FORTRAN_KERNEL_RELAXAIJ)
1345 #define PETSC_USE_FORTRAN_KERNEL_RELAXAIJ
1346 #endif
1347 
1348 #if !defined(PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ)
1349 #define PETSC_USE_FORTRAN_KERNEL_SOLVEBAIJ
1350 #endif
1351 
1352 #if !defined(PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ)
1353 #define PETSC_USE_FORTRAN_KERNEL_MULTADDAIJ
1354 #endif
1355 
1356 #if !defined(PETSC_USE_FORTRAN_KERNEL_MDOT)
1357 #define PETSC_USE_FORTRAN_KERNEL_MDOT
1358 #endif
1359 
1360 #if !defined(PETSC_USE_FORTRAN_KERNEL_XTIMESY)
1361 #define PETSC_USE_FORTRAN_KERNEL_XTIMESY
1362 #endif
1363 
1364 #if !defined(PETSC_USE_FORTRAN_KERNEL_AYPX)
1365 #define PETSC_USE_FORTRAN_KERNEL_AYPX
1366 #endif
1367 
1368 #if !defined(PETSC_USE_FORTRAN_KERNEL_WAXPY)
1369 #define PETSC_USE_FORTRAN_KERNEL_WAXPY
1370 #endif
1371 
1372 #endif
1373 
1374 /*
1375     Macros for indicating code that should be compiled with a C interface,
1376    rather than a C++ interface. Any routines that are dynamically loaded
1377    (such as the PCCreate_XXX() routines) must be wrapped so that the name
1378    mangler does not change the functions symbol name. This just hides the
1379    ugly extern "C" {} wrappers.
1380 */
1381 #if defined(__cplusplus)
1382 #define EXTERN_C_BEGIN extern "C" {
1383 #define EXTERN_C_END }
1384 #else
1385 #define EXTERN_C_BEGIN
1386 #define EXTERN_C_END
1387 #endif
1388 
1389 /* --------------------------------------------------------------------*/
1390 
1391 /*M
1392     size - integer variable used to contain the number of processors in
1393            the relevent MPI_Comm
1394 
1395    Level: beginner
1396 
1397 .seealso: rank, comm
1398 M*/
1399 
1400 /*M
1401     rank - integer variable used to contain the number of this processor relative
1402            to all in the relevent MPI_Comm
1403 
1404    Level: beginner
1405 
1406 .seealso: size, comm
1407 M*/
1408 
1409 /*M
1410     comm - MPI_Comm used in the current routine or object
1411 
1412    Level: beginner
1413 
1414 .seealso: size, rank
1415 M*/
1416 
1417 /*M
1418     MPI_Comm - the basic object used by MPI to determine which processes are involved in a
1419         communication
1420 
1421    Level: beginner
1422 
1423    Note: This manual page is a place-holder because MPICH does not have a manual page for MPI_Comm
1424 
1425 .seealso: size, rank, comm, PETSC_COMM_WORLD, PETSC_COMM_SELF
1426 M*/
1427 
1428 /*M
1429     PetscScalar - PETSc type that represents either a double precision real number or
1430        a double precision complex number if the code is configured with --with-scalar-type=complex
1431 
1432    Level: beginner
1433 
1434 .seealso: PetscReal, PassiveReal, PassiveScalar
1435 M*/
1436 
1437 /*M
1438     PetscReal - PETSc type that represents a double precision real number
1439 
1440    Level: beginner
1441 
1442 .seealso: PetscScalar, PassiveReal, PassiveScalar
1443 M*/
1444 
1445 /*M
1446     PassiveScalar - PETSc type that represents either a double precision real number or
1447        a double precision complex number if the code is  code is configured with --with-scalar-type=complex
1448 
1449    Level: beginner
1450 
1451     This is the same as a PetscScalar except in code that is automatically differentiated it is
1452    treated as a constant (not an indendent or dependent variable)
1453 
1454 .seealso: PetscReal, PassiveReal, PetscScalar
1455 M*/
1456 
1457 /*M
1458     PassiveReal - PETSc type that represents a double precision real number
1459 
1460    Level: beginner
1461 
1462     This is the same as a PetscReal except in code that is automatically differentiated it is
1463    treated as a constant (not an indendent or dependent variable)
1464 
1465 .seealso: PetscScalar, PetscReal, PassiveScalar
1466 M*/
1467 
1468 /*M
1469     MPIU_SCALAR - MPI datatype corresponding to PetscScalar
1470 
1471    Level: beginner
1472 
1473     Note: In MPI calls that require an MPI datatype that matches a PetscScalar or array of PetscScalars
1474           pass this value
1475 
1476 .seealso: PetscReal, PassiveReal, PassiveScalar, PetscScalar
1477 M*/
1478 
1479 /*
1480      The IBM include files define hz, here we hide it so that it may be used
1481    as a regular user variable.
1482 */
1483 #if defined(hz)
1484 #undef hz
1485 #endif
1486 
1487 /*  For arrays that contain filenames or paths */
1488 
1489 
1490 #if defined(PETSC_HAVE_LIMITS_H)
1491 #include <limits.h>
1492 #endif
1493 #if defined(PETSC_HAVE_SYS_PARAM_H)
1494 #include <sys/param.h>
1495 #endif
1496 #if defined(PETSC_HAVE_SYS_TYPES_H)
1497 #include <sys/types.h>
1498 #endif
1499 #if defined(MAXPATHLEN)
1500 #  define PETSC_MAX_PATH_LEN     MAXPATHLEN
1501 #elif defined(MAX_PATH)
1502 #  define PETSC_MAX_PATH_LEN     MAX_PATH
1503 #elif defined(_MAX_PATH)
1504 #  define PETSC_MAX_PATH_LEN     _MAX_PATH
1505 #else
1506 #  define PETSC_MAX_PATH_LEN     4096
1507 #endif
1508 
1509 PETSC_EXTERN_CXX_END
1510 #endif
1511 
1512 
1513