xref: /petsc/include/petscviewer.h (revision 193ac0bc5128976c4ec2c1a67f3f9cb026b77f22)
1 /*
2      PetscViewers are objects where other objects can be looked at or stored.
3 */
4 
5 #if !defined(__PETSCVIEWER_H)
6 #define __PETSCVIEWER_H
7 
8 #if defined(PETSC_USE_EXTERN_CXX) && defined(__cplusplus)
9 extern "C" {
10 #endif
11 
12 /*S
13      PetscViewer - Abstract PETSc object that helps view (in ASCII, binary, graphically etc)
14          other PETSc objects
15 
16    Level: beginner
17 
18   Concepts: viewing
19 
20 .seealso:  PetscViewerCreate(), PetscViewerSetType(), PetscViewerType
21 S*/
22 typedef struct _p_PetscViewer* PetscViewer;
23 
24 #if defined(PETSC_USE_EXTERN_CXX) && defined(__cplusplus)
25 }
26 #endif
27 
28 #include "petscsys.h"
29 
30 #if defined(PETSC_USE_EXTERN_CXX) && defined(__cplusplus)
31 extern "C" {
32 #endif
33 
34 extern  PetscClassId PETSC_VIEWER_CLASSID;
35 
36 #if defined(PETSC_USE_EXTERN_CXX) && defined(__cplusplus)
37 }
38 #endif
39 
40 
41 /*
42     petscsys.h must be included AFTER the definition of PetscViewer for ADIC to
43    process correctly.
44 */
45 PETSC_EXTERN_CXX_BEGIN
46 /*E
47     PetscViewerType - String with the name of a PETSc PETScViewer
48 
49    Level: beginner
50 
51 .seealso: PetscViewerSetType(), PetscViewer
52 E*/
53 #define PetscViewerType char*
54 #define PETSCVIEWERSOCKET       "socket"
55 #define PETSCVIEWERASCII        "ascii"
56 #define PETSCVIEWERBINARY       "binary"
57 #define PETSCVIEWERSTRING       "string"
58 #define PETSCVIEWERDRAW         "draw"
59 #define PETSCVIEWERVU           "vu"
60 #define PETSCVIEWERMATHEMATICA  "mathematica"
61 #define PETSCVIEWERNETCDF       "netcdf"
62 #define PETSCVIEWERHDF5         "hdf5"
63 #define PETSCVIEWERMATLAB       "matlab"
64 #define PETSCVIEWERAMS          "ams"
65 
66 extern PetscFList PetscViewerList;
67 extern PetscErrorCode  PetscViewerRegisterAll(const char *);
68 extern PetscErrorCode  PetscViewerRegisterDestroy(void);
69 extern PetscErrorCode  PetscViewerInitializePackage(const char[]);
70 
71 extern PetscErrorCode  PetscViewerRegister(const char*,const char*,const char*,PetscErrorCode (*)(PetscViewer));
72 
73 /*MC
74    PetscViewerRegisterDynamic - Adds a viewer
75 
76    Synopsis:
77    PetscErrorCode PetscViewerRegisterDynamic(const char *name_solver,const char *path,const char *name_create,PetscErrorCode (*routine_create)(PetscViewer))
78 
79    Not Collective
80 
81    Input Parameters:
82 +  name_solver - name of a new user-defined viewer
83 .  path - path (either absolute or relative) the library containing this viewer
84 .  name_create - name of routine to create method context
85 -  routine_create - routine to create method context
86 
87    Level: developer
88 
89    Notes:
90    PetscViewerRegisterDynamic() may be called multiple times to add several user-defined viewers.
91 
92    If dynamic libraries are used, then the fourth input argument (routine_create)
93    is ignored.
94 
95    Sample usage:
96 .vb
97    PetscViewerRegisterDynamic("my_viewer_type",/home/username/my_lib/lib/libO/solaris/mylib.a,
98                "MyViewerCreate",MyViewerCreate);
99 .ve
100 
101    Then, your solver can be chosen with the procedural interface via
102 $     PetscViewerSetType(viewer,"my_viewer_type")
103    or at runtime via the option
104 $     -viewer_type my_viewer_type
105 
106   Concepts: registering^Viewers
107 
108 .seealso: PetscViewerRegisterAll(), PetscViewerRegisterDestroy()
109 M*/
110 #if defined(PETSC_USE_DYNAMIC_LIBRARIES)
111 #define PetscViewerRegisterDynamic(a,b,c,d) PetscViewerRegister(a,b,c,0)
112 #else
113 #define PetscViewerRegisterDynamic(a,b,c,d) PetscViewerRegister(a,b,c,d)
114 #endif
115 
116 extern PetscErrorCode  PetscViewerCreate(MPI_Comm,PetscViewer*);
117 PetscPolymorphicSubroutine(PetscViewerCreate,(PetscViewer *v),(PETSC_COMM_SELF,v))
118 extern PetscErrorCode  PetscViewerSetFromOptions(PetscViewer);
119 extern PetscErrorCode  PetscViewerASCIIOpenWithFILE(MPI_Comm,FILE*,PetscViewer*);
120 
121 extern PetscErrorCode  PetscViewerASCIIOpen(MPI_Comm,const char[],PetscViewer*);
122 extern PetscErrorCode  PetscViewerASCIISetFILE(PetscViewer,FILE*);
123 extern PetscErrorCode  PetscViewerBinaryOpen(MPI_Comm,const char[],PetscFileMode,PetscViewer*);
124 extern PetscErrorCode  PetscViewerBinaryGetFlowControl(PetscViewer,PetscInt*);
125 extern PetscErrorCode  PetscViewerBinarySetFlowControl(PetscViewer,PetscInt);
126 extern PetscErrorCode  PetscViewerBinarySetMPIIO(PetscViewer);
127 extern PetscErrorCode  PetscViewerBinaryGetMPIIO(PetscViewer,PetscBool *);
128 #if defined(PETSC_HAVE_MPIIO)
129 extern PetscErrorCode  PetscViewerBinaryGetMPIIODescriptor(PetscViewer,MPI_File*);
130 extern PetscErrorCode  PetscViewerBinaryGetMPIIOOffset(PetscViewer,MPI_Offset*);
131 extern PetscErrorCode  PetscViewerBinaryAddMPIIOOffset(PetscViewer,MPI_Offset);
132 #endif
133 
134 extern PetscErrorCode  PetscViewerSocketOpen(MPI_Comm,const char[],int,PetscViewer*);
135 extern PetscErrorCode  PetscViewerStringOpen(MPI_Comm,char[],PetscInt,PetscViewer*);
136 extern PetscErrorCode  PetscViewerDrawOpen(MPI_Comm,const char[],const char[],int,int,int,int,PetscViewer*);
137 extern PetscErrorCode  PetscViewerMathematicaOpen(MPI_Comm, int, const char[], const char[], PetscViewer *);
138 extern PetscErrorCode  PetscViewerSiloOpen(MPI_Comm, const char[], PetscViewer *);
139 extern PetscErrorCode  PetscViewerMatlabOpen(MPI_Comm,const char[],PetscFileMode,PetscViewer*);
140 
141 extern PetscErrorCode  PetscViewerGetType(PetscViewer,const PetscViewerType*);
142 extern PetscErrorCode  PetscViewerSetType(PetscViewer,const PetscViewerType);
143 extern PetscErrorCode  PetscViewerDestroy(PetscViewer*);
144 extern PetscErrorCode  PetscViewerGetSingleton(PetscViewer,PetscViewer*);
145 extern PetscErrorCode  PetscViewerRestoreSingleton(PetscViewer,PetscViewer*);
146 extern PetscErrorCode  PetscViewerGetSubcomm(PetscViewer,MPI_Comm,PetscViewer*);
147 extern PetscErrorCode  PetscViewerRestoreSubcomm(PetscViewer,MPI_Comm,PetscViewer*);
148 
149 extern PetscErrorCode  PetscViewerSetUp(PetscViewer);
150 extern PetscErrorCode  PetscViewerView(PetscViewer,PetscViewer);
151 
152 extern PetscErrorCode  PetscViewerSetOptionsPrefix(PetscViewer,const char[]);
153 extern PetscErrorCode  PetscViewerAppendOptionsPrefix(PetscViewer,const char[]);
154 extern PetscErrorCode  PetscViewerGetOptionsPrefix(PetscViewer,const char*[]);
155 
156 /*E
157     PetscViewerFormat - Way a viewer presents the object
158 
159    Level: beginner
160 
161    The values below are also listed in finclude/petscviewer.h. If another values is added below it
162    must also be added there.
163 
164 .seealso: PetscViewerSetFormat(), PetscViewer, PetscViewerType, PetscViewerPushFormat(), PetscViewerPopFormat()
165 E*/
166 typedef enum {
167   PETSC_VIEWER_DEFAULT,
168   PETSC_VIEWER_ASCII_MATLAB,
169   PETSC_VIEWER_ASCII_MATHEMATICA,
170   PETSC_VIEWER_ASCII_IMPL,
171   PETSC_VIEWER_ASCII_INFO,
172   PETSC_VIEWER_ASCII_INFO_DETAIL,
173   PETSC_VIEWER_ASCII_COMMON,
174   PETSC_VIEWER_ASCII_SYMMODU,
175   PETSC_VIEWER_ASCII_INDEX,
176   PETSC_VIEWER_ASCII_DENSE,
177   PETSC_VIEWER_ASCII_MATRIXMARKET,
178   PETSC_VIEWER_ASCII_VTK,
179   PETSC_VIEWER_ASCII_VTK_CELL,
180   PETSC_VIEWER_ASCII_VTK_COORDS,
181   PETSC_VIEWER_ASCII_PCICE,
182   PETSC_VIEWER_ASCII_PYTHON,
183   PETSC_VIEWER_ASCII_FACTOR_INFO,
184   PETSC_VIEWER_DRAW_BASIC,
185   PETSC_VIEWER_DRAW_LG,
186   PETSC_VIEWER_DRAW_CONTOUR,
187   PETSC_VIEWER_DRAW_PORTS,
188   PETSC_VIEWER_NATIVE,
189   PETSC_VIEWER_NOFORMAT
190   } PetscViewerFormat;
191 
192 extern PetscErrorCode  PetscViewerSetFormat(PetscViewer,PetscViewerFormat);
193 extern PetscErrorCode  PetscViewerPushFormat(PetscViewer,PetscViewerFormat);
194 extern PetscErrorCode  PetscViewerPopFormat(PetscViewer);
195 extern PetscErrorCode  PetscViewerGetFormat(PetscViewer,PetscViewerFormat*);
196 extern PetscErrorCode  PetscViewerFlush(PetscViewer);
197 
198 /*
199    Operations explicit to a particular class of viewers
200 */
201 
202 extern PetscErrorCode  PetscViewerASCIIGetPointer(PetscViewer,FILE**);
203 extern PetscErrorCode  PetscViewerFileGetMode(PetscViewer,PetscFileMode*);
204 extern PetscErrorCode  PetscViewerFileSetMode(PetscViewer,PetscFileMode);
205 extern PetscErrorCode  PetscViewerASCIIPrintf(PetscViewer,const char[],...);
206 extern PetscErrorCode  PetscViewerASCIISynchronizedPrintf(PetscViewer,const char[],...);
207 extern PetscErrorCode  PetscViewerASCIISynchronizedAllow(PetscViewer,PetscBool);
208 extern PetscErrorCode  PetscViewerASCIIPushTab(PetscViewer);
209 extern PetscErrorCode  PetscViewerASCIIPopTab(PetscViewer);
210 extern PetscErrorCode  PetscViewerASCIIUseTabs(PetscViewer,PetscBool );
211 extern PetscErrorCode  PetscViewerASCIISetTab(PetscViewer,PetscInt);
212 extern PetscErrorCode  PetscViewerASCIIAddTab(PetscViewer,PetscInt);
213 extern PetscErrorCode  PetscViewerASCIISubtractTab(PetscViewer,PetscInt);
214 extern PetscErrorCode  PetscViewerBinaryGetDescriptor(PetscViewer,int*);
215 extern PetscErrorCode  PetscViewerBinaryGetInfoPointer(PetscViewer,FILE **);
216 extern PetscErrorCode  PetscViewerBinaryRead(PetscViewer,void*,PetscInt,PetscDataType);
217 extern PetscErrorCode  PetscViewerBinaryWrite(PetscViewer,void*,PetscInt,PetscDataType,PetscBool );
218 extern PetscErrorCode  PetscViewerStringSPrintf(PetscViewer,const char[],...);
219 extern PetscErrorCode  PetscViewerStringSetString(PetscViewer,char[],PetscInt);
220 extern PetscErrorCode  PetscViewerDrawClear(PetscViewer);
221 extern PetscErrorCode  PetscViewerDrawSetInfo(PetscViewer,const char[],const char[],int,int,int,int);
222 extern PetscErrorCode  PetscViewerSocketSetConnection(PetscViewer,const char[],int);
223 extern PetscErrorCode  PetscViewerBinarySkipInfo(PetscViewer);
224 extern PetscErrorCode  PetscViewerBinarySetSkipOptions(PetscViewer,PetscBool );
225 extern PetscErrorCode  PetscViewerBinaryGetSkipOptions(PetscViewer,PetscBool *);
226 extern PetscErrorCode  PetscViewerBinarySetSkipHeader(PetscViewer,PetscBool);
227 extern PetscErrorCode  PetscViewerBinaryGetSkipHeader(PetscViewer,PetscBool*);
228 extern PetscErrorCode  PetscViewerBinaryReadStringArray(PetscViewer,char***);
229 extern PetscErrorCode  PetscViewerBinaryWriteStringArray(PetscViewer,char**);
230 
231 extern PetscErrorCode  PetscViewerFileSetName(PetscViewer,const char[]);
232 extern PetscErrorCode  PetscViewerFileGetName(PetscViewer,const char**);
233 
234 extern PetscErrorCode  PetscPLAPACKInitializePackage(MPI_Comm com);
235 extern PetscErrorCode  PetscPLAPACKFinalizePackage(void);
236 
237 extern PetscErrorCode  PetscViewerVUGetPointer(PetscViewer, FILE**);
238 extern PetscErrorCode  PetscViewerVUSetVecSeen(PetscViewer, PetscBool );
239 extern PetscErrorCode  PetscViewerVUGetVecSeen(PetscViewer, PetscBool  *);
240 extern PetscErrorCode  PetscViewerVUPrintDeferred(PetscViewer, const char [], ...);
241 extern PetscErrorCode  PetscViewerVUFlushDeferred(PetscViewer);
242 
243 extern PetscErrorCode  PetscViewerMathematicaInitializePackage(const char[]);
244 extern PetscErrorCode  PetscViewerMathematicaFinalizePackage(void);
245 extern PetscErrorCode  PetscViewerMathematicaGetName(PetscViewer, const char **);
246 extern PetscErrorCode  PetscViewerMathematicaSetName(PetscViewer, const char []);
247 extern PetscErrorCode  PetscViewerMathematicaClearName(PetscViewer);
248 extern PetscErrorCode  PetscViewerMathematicaSkipPackets(PetscViewer, int);
249 
250 extern PetscErrorCode  PetscViewerSiloGetName(PetscViewer, char **);
251 extern PetscErrorCode  PetscViewerSiloSetName(PetscViewer, const char []);
252 extern PetscErrorCode  PetscViewerSiloClearName(PetscViewer);
253 extern PetscErrorCode  PetscViewerSiloGetMeshName(PetscViewer, char **);
254 extern PetscErrorCode  PetscViewerSiloSetMeshName(PetscViewer, const char []);
255 extern PetscErrorCode  PetscViewerSiloClearMeshName(PetscViewer);
256 
257 extern PetscErrorCode  PetscViewerNetcdfOpen(MPI_Comm,const char[],PetscFileMode,PetscViewer*);
258 extern PetscErrorCode  PetscViewerNetcdfGetID(PetscViewer, int *);
259 
260 extern PetscErrorCode  PetscViewerHDF5WriteSDS(PetscViewer,float *,int,int *,int);
261 
262 extern PetscErrorCode  PetscViewerHDF5Open(MPI_Comm,const char[],PetscFileMode,PetscViewer*);
263 extern PetscErrorCode  PetscViewerHDF5PushGroup(PetscViewer,const char *);
264 extern PetscErrorCode  PetscViewerHDF5PopGroup(PetscViewer);
265 extern PetscErrorCode  PetscViewerHDF5GetGroup(PetscViewer, const char **);
266 extern PetscErrorCode  PetscViewerHDF5IncrementTimestep(PetscViewer);
267 extern PetscErrorCode  PetscViewerHDF5SetTimestep(PetscViewer,PetscInt);
268 extern PetscErrorCode  PetscViewerHDF5GetTimestep(PetscViewer,PetscInt*);
269 #ifdef PETSC_HAVE_HDF5
270 #include <hdf5.h>
271 extern PetscErrorCode  PetscViewerHDF5GetFileId(PetscViewer,hid_t*);
272 extern PetscErrorCode  PetscViewerHDF5OpenGroup(PetscViewer, hid_t *, hid_t *);
273 #endif
274 
275 /*
276      These are all the default viewers that do not have
277    to be explicitly opened
278 */
279 extern PetscViewer  PETSC_VIEWER_STDOUT_(MPI_Comm);
280 extern PetscErrorCode  PetscViewerASCIIGetStdout(MPI_Comm,PetscViewer*);
281 extern PetscViewer  PETSC_VIEWER_STDERR_(MPI_Comm);
282 extern PetscErrorCode  PetscViewerASCIIGetStderr(MPI_Comm,PetscViewer*);
283 extern PetscViewer  PETSC_VIEWER_DRAW_(MPI_Comm);
284 extern PetscViewer  PETSC_VIEWER_SOCKET_(MPI_Comm);
285 extern PetscViewer  PETSC_VIEWER_BINARY_(MPI_Comm);
286 extern PetscViewer  PETSC_VIEWER_MATLAB_(MPI_Comm);
287 extern PetscViewer PETSC_VIEWER_MATHEMATICA_WORLD_PRIVATE;
288 
289 #define PETSC_VIEWER_STDERR_SELF  PETSC_VIEWER_STDERR_(PETSC_COMM_SELF)
290 #define PETSC_VIEWER_STDERR_WORLD PETSC_VIEWER_STDERR_(PETSC_COMM_WORLD)
291 
292 /*MC
293   PETSC_VIEWER_STDOUT_WORLD  - same as PETSC_VIEWER_STDOUT_(PETSC_COMM_WORLD)
294 
295   Level: beginner
296 M*/
297 #define PETSC_VIEWER_STDOUT_WORLD PETSC_VIEWER_STDOUT_(PETSC_COMM_WORLD)
298 
299 /*MC
300   PETSC_VIEWER_STDOUT_SELF  - same as PETSC_VIEWER_STDOUT_(PETSC_COMM_SELF)
301 
302   Level: beginner
303 M*/
304 #define PETSC_VIEWER_STDOUT_SELF  PETSC_VIEWER_STDOUT_(PETSC_COMM_SELF)
305 
306 /*MC
307   PETSC_VIEWER_DRAW_WORLD  - same as PETSC_VIEWER_DRAW_(PETSC_COMM_WORLD)
308 
309   Level: intermediate
310 M*/
311 #define PETSC_VIEWER_DRAW_WORLD   PETSC_VIEWER_DRAW_(PETSC_COMM_WORLD)
312 
313 /*MC
314   PETSC_VIEWER_DRAW_SELF  - same as PETSC_VIEWER_DRAW_(PETSC_COMM_SELF)
315 
316   Level: intermediate
317 M*/
318 #define PETSC_VIEWER_DRAW_SELF    PETSC_VIEWER_DRAW_(PETSC_COMM_SELF)
319 
320 /*MC
321   PETSC_VIEWER_SOCKET_WORLD  - same as PETSC_VIEWER_SOCKET_(PETSC_COMM_WORLD)
322 
323   Level: intermediate
324 M*/
325 #define PETSC_VIEWER_SOCKET_WORLD PETSC_VIEWER_SOCKET_(PETSC_COMM_WORLD)
326 
327 /*MC
328   PETSC_VIEWER_SOCKET_SELF  - same as PETSC_VIEWER_SOCKET_(PETSC_COMM_SELF)
329 
330   Level: intermediate
331 M*/
332 #define PETSC_VIEWER_SOCKET_SELF  PETSC_VIEWER_SOCKET_(PETSC_COMM_SELF)
333 
334 /*MC
335   PETSC_VIEWER_BINARY_WORLD  - same as PETSC_VIEWER_BINARY_(PETSC_COMM_WORLD)
336 
337   Level: intermediate
338 M*/
339 #define PETSC_VIEWER_BINARY_WORLD PETSC_VIEWER_BINARY_(PETSC_COMM_WORLD)
340 
341 /*MC
342   PETSC_VIEWER_BINARY_SELF  - same as PETSC_VIEWER_BINARY_(PETSC_COMM_SELF)
343 
344   Level: intermediate
345 M*/
346 #define PETSC_VIEWER_BINARY_SELF  PETSC_VIEWER_BINARY_(PETSC_COMM_SELF)
347 
348 /*MC
349   PETSC_VIEWER_MATLAB_WORLD  - same as PETSC_VIEWER_MATLAB_(PETSC_COMM_WORLD)
350 
351   Level: intermediate
352 M*/
353 #define PETSC_VIEWER_MATLAB_WORLD PETSC_VIEWER_MATLAB_(PETSC_COMM_WORLD)
354 
355 /*MC
356   PETSC_VIEWER_MATLAB_SELF  - same as PETSC_VIEWER_MATLAB_(PETSC_COMM_SELF)
357 
358   Level: intermediate
359 M*/
360 #define PETSC_VIEWER_MATLAB_SELF  PETSC_VIEWER_MATLAB_(PETSC_COMM_SELF)
361 
362 #define PETSC_VIEWER_MATHEMATICA_WORLD (PetscViewerInitializeMathematicaWorld_Private(),PETSC_VIEWER_MATHEMATICA_WORLD_PRIVATE)
363 
364 #define PetscViewerFlowControlStart(viewer,mcnt,cnt)  (PetscViewerBinaryGetFlowControl(viewer,mcnt) || PetscViewerBinaryGetFlowControl(viewer,cnt))
365 #define PetscViewerFlowControlStepMaster(viewer,i,mcnt,cnt) ((i >= mcnt) ?  (mcnt += cnt,MPI_Bcast(&mcnt,1,MPIU_INT,0,((PetscObject)viewer)->comm)) : 0)
366 #define PetscViewerFlowControlEndMaster(viewer,mcnt) (mcnt = 0,MPI_Bcast(&mcnt,1,MPIU_INT,0,((PetscObject)viewer)->comm))
367 #define PetscViewerFlowControlStepWorker(viewer,rank,mcnt) 0; while (1) { PetscErrorCode _ierr; \
368     if (rank < mcnt) break;				\
369   _ierr = MPI_Bcast(&mcnt,1,MPIU_INT,0,((PetscObject)viewer)->comm);CHKERRQ(_ierr);\
370   }
371 #define PetscViewerFlowControlEndWorker(viewer,mcnt) 0; while (1) { PetscErrorCode _ierr; \
372   _ierr = MPI_Bcast(&mcnt,1,MPIU_INT,0,((PetscObject)viewer)->comm);CHKERRQ(_ierr);\
373     if (mcnt == 0) break;				\
374   }
375 
376 /*
377    petscViewer writes to MATLAB .mat file
378 */
379 extern PetscErrorCode  PetscViewerMatlabPutArray(PetscViewer,int,int,const PetscScalar*,const char*);
380 extern PetscErrorCode  PetscViewerMatlabGetArray(PetscViewer,int,int,PetscScalar*,const char*);
381 extern PetscErrorCode  PetscViewerMatlabPutVariable(PetscViewer,const char*,void*);
382 
383 /*S
384      PetscViewers - Abstract collection of PetscViewers. It is just an expandable array of viewers.
385 
386    Level: intermediate
387 
388   Concepts: viewing
389 
390 .seealso:  PetscViewerCreate(), PetscViewerSetType(), PetscViewerType, PetscViewer, PetscViewersCreate(),
391            PetscViewersGetViewer()
392 S*/
393 typedef struct _n_PetscViewers* PetscViewers;
394 extern PetscErrorCode  PetscViewersCreate(MPI_Comm,PetscViewers*);
395 extern PetscErrorCode  PetscViewersDestroy(PetscViewers*);
396 extern PetscErrorCode  PetscViewersGetViewer(PetscViewers,PetscInt,PetscViewer*);
397 
398 #if defined(PETSC_HAVE_AMS)
399 #include <ams.h>
400 extern PetscErrorCode PetscViewerAMSSetCommName(PetscViewer,const char[]);
401 extern PetscErrorCode PetscViewerAMSGetAMSComm(PetscViewer,AMS_Comm *);
402 extern PetscErrorCode PetscViewerAMSOpen(MPI_Comm,const char[],PetscViewer*);
403 extern PetscErrorCode PetscViewerAMSLock(PetscViewer);
404 extern PetscViewer    PETSC_VIEWER_AMS_(MPI_Comm);
405 extern PetscErrorCode PETSC_VIEWER_AMS_Destroy(MPI_Comm);
406 #define PETSC_VIEWER_AMS_WORLD PETSC_VIEWER_AMS_(PETSC_COMM_WORLD)
407 #endif
408 
409 
410 PETSC_EXTERN_CXX_END
411 #endif
412