xref: /petsc/include/petscviewer.h (revision ce0a2cd1da0658c2b28aad1be2e2c8e41567bece)
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 "petsc.h"
29 
30 #if defined(PETSC_USE_EXTERN_CXX) && defined(__cplusplus)
31 extern "C" {
32 #endif
33 
34 extern PETSC_DLLEXPORT PetscCookie PETSC_VIEWER_COOKIE;
35 
36 #if defined(PETSC_USE_EXTERN_CXX) && defined(__cplusplus)
37 }
38 #endif
39 
40 
41 /*
42     petsc.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 const char*
54 #define PETSC_VIEWER_SOCKET       "socket"
55 #define PETSC_VIEWER_ASCII        "ascii"
56 #define PETSC_VIEWER_BINARY       "binary"
57 #define PETSC_VIEWER_STRING       "string"
58 #define PETSC_VIEWER_DRAW         "draw"
59 #define PETSC_VIEWER_VU           "vu"
60 #define PETSC_VIEWER_MATHEMATICA  "mathematica"
61 #define PETSC_VIEWER_SILO         "silo"
62 #define PETSC_VIEWER_NETCDF       "netcdf"
63 #define PETSC_VIEWER_HDF4         "hdf4"
64 #define PETSC_VIEWER_HDF5         "hdf5"
65 #define PETSC_VIEWER_MATLAB       "matlab"
66 
67 extern PetscFList PetscViewerList;
68 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerRegisterAll(const char *);
69 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerRegisterDestroy(void);
70 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerInitializePackage(const char[]);
71 
72 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerRegister(const char*,const char*,const char*,PetscErrorCode (*)(PetscViewer));
73 
74 /*MC
75    PetscViewerRegisterDynamic - Adds a method to the Krylov subspace solver package.
76 
77    Synopsis:
78    PetscErrorCode PetscViewerRegisterDynamic(char *name_solver,char *path,char *name_create,PetscErrorCode (*routine_create)(PetscViewer))
79 
80    Not Collective
81 
82    Input Parameters:
83 +  name_solver - name of a new user-defined solver
84 .  path - path (either absolute or relative) the library containing this solver
85 .  name_create - name of routine to create method context
86 -  routine_create - routine to create method context
87 
88    Level: developer
89 
90    Notes:
91    PetscViewerRegisterDynamic() may be called multiple times to add several user-defined solvers.
92 
93    If dynamic libraries are used, then the fourth input argument (routine_create)
94    is ignored.
95 
96    Sample usage:
97 .vb
98    PetscViewerRegisterDynamic("my_viewer_type",/home/username/my_lib/lib/libO/solaris/mylib.a,
99                "MyViewerCreate",MyViewerCreate);
100 .ve
101 
102    Then, your solver can be chosen with the procedural interface via
103 $     PetscViewerSetType(ksp,"my_viewer_type")
104    or at runtime via the option
105 $     -viewer_type my_viewer_type
106 
107   Concepts: registering^Viewers
108 
109 .seealso: PetscViewerRegisterAll(), PetscViewerRegisterDestroy()
110 M*/
111 #if defined(PETSC_USE_DYNAMIC_LIBRARIES)
112 #define PetscViewerRegisterDynamic(a,b,c,d) PetscViewerRegister(a,b,c,0)
113 #else
114 #define PetscViewerRegisterDynamic(a,b,c,d) PetscViewerRegister(a,b,c,d)
115 #endif
116 
117 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerCreate(MPI_Comm,PetscViewer*);
118 PetscPolymorphicSubroutine(PetscViewerCreate,(PetscViewer *v),(PETSC_COMM_SELF,v))
119 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSetFromOptions(PetscViewer);
120 
121 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIOpen(MPI_Comm,const char[],PetscViewer*);
122 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryCreate(MPI_Comm,PetscViewer*);
123 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryOpen(MPI_Comm,const char[],PetscFileMode,PetscViewer*);
124 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSocketOpen(MPI_Comm,const char[],int,PetscViewer*);
125 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerStringOpen(MPI_Comm,char[],PetscInt,PetscViewer*);
126 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerDrawOpen(MPI_Comm,const char[],const char[],int,int,int,int,PetscViewer*);
127 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMathematicaOpen(MPI_Comm, int, const char[], const char[], PetscViewer *);
128 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSiloOpen(MPI_Comm, const char[], PetscViewer *);
129 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMatlabOpen(MPI_Comm,const char[],PetscFileMode,PetscViewer*);
130 
131 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerGetType(PetscViewer,PetscViewerType*);
132 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSetType(PetscViewer,PetscViewerType);
133 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerDestroy(PetscViewer);
134 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerGetSingleton(PetscViewer,PetscViewer*);
135 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerRestoreSingleton(PetscViewer,PetscViewer*);
136 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerGetSubcomm(PetscViewer,MPI_Comm,PetscViewer*);
137 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerRestoreSubcomm(PetscViewer,MPI_Comm,PetscViewer*);
138 
139 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSetUp(PetscViewer);
140 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerView(PetscViewer,PetscViewer);
141 
142 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSetOptionsPrefix(PetscViewer,const char[]);
143 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerAppendOptionsPrefix(PetscViewer,const char[]);
144 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerGetOptionsPrefix(PetscViewer,const char*[]);
145 
146 /*E
147     PetscViewerFormat - Way a viewer presents the object
148 
149    Level: beginner
150 
151 .seealso: PetscViewerSetFormat(), PetscViewer, PetscViewerType, PetscViewerPushFormat(), PetscViewerPopFormat()
152 E*/
153 typedef enum {
154   PETSC_VIEWER_ASCII_DEFAULT,
155   PETSC_VIEWER_ASCII_MATLAB,
156   PETSC_VIEWER_ASCII_MATHEMATICA,
157   PETSC_VIEWER_ASCII_IMPL,
158   PETSC_VIEWER_ASCII_INFO,
159   PETSC_VIEWER_ASCII_INFO_DETAIL,
160   PETSC_VIEWER_ASCII_COMMON,
161   PETSC_VIEWER_ASCII_SYMMODU,
162   PETSC_VIEWER_ASCII_INDEX,
163   PETSC_VIEWER_ASCII_DENSE,
164   PETSC_VIEWER_ASCII_VTK,
165   PETSC_VIEWER_ASCII_VTK_CELL,
166   PETSC_VIEWER_ASCII_VTK_COORDS,
167   PETSC_VIEWER_ASCII_PCICE,
168   PETSC_VIEWER_ASCII_PYLITH,
169   PETSC_VIEWER_ASCII_PYLITH_LOCAL,
170   PETSC_VIEWER_BINARY_DEFAULT,
171   PETSC_VIEWER_BINARY_NATIVE,
172   PETSC_VIEWER_DRAW_BASIC,
173   PETSC_VIEWER_DRAW_LG,
174   PETSC_VIEWER_DRAW_CONTOUR,
175   PETSC_VIEWER_DRAW_PORTS,
176   PETSC_VIEWER_NATIVE,
177   PETSC_VIEWER_NOFORMAT,
178   PETSC_VIEWER_ASCII_FACTOR_INFO} PetscViewerFormat;
179 
180 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSetFormat(PetscViewer,PetscViewerFormat);
181 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerPushFormat(PetscViewer,PetscViewerFormat);
182 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerPopFormat(PetscViewer);
183 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerGetFormat(PetscViewer,PetscViewerFormat*);
184 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerFlush(PetscViewer);
185 
186 /*S
187      PetscViewerASCIIMonitor - Context for the default KSP, SNES and TS monitors that print
188                                   ASCII strings of residual norms etc.
189 
190 
191    Level: advanced
192 
193   Concepts: viewing, monitoring
194 
195 .seealso:  PetscViewerCreate(), PetscViewerSetType(), PetscViewerType, KSPMonitorSet(), SNESMonitorSet(), TSMonitorSet(),
196            KSPMonitorDefault(), SNESMonitorDefault()
197 
198 S*/
199 struct _p_PetscViewerASCIIMonitor {
200   PetscViewer viewer;
201   PetscInt    tabs;
202 };
203 typedef struct _p_PetscViewerASCIIMonitor* PetscViewerASCIIMonitor;
204 
205 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIMonitorCreate(MPI_Comm,const char *,PetscInt,PetscViewerASCIIMonitor*);
206 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIMonitorDestroy(PetscViewerASCIIMonitor);
207 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIMonitorPrintf(PetscViewerASCIIMonitor,const char[],...);
208 
209 /*
210    Operations explicit to a particular class of viewers
211 */
212 
213 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIGetPointer(PetscViewer,FILE**);
214 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerFileGetMode(PetscViewer,PetscFileMode*);
215 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerFileSetMode(PetscViewer,PetscFileMode);
216 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIPrintf(PetscViewer,const char[],...) PETSC_PRINTF_FORMAT_CHECK(2,3);
217 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIISynchronizedPrintf(PetscViewer,const char[],...) PETSC_PRINTF_FORMAT_CHECK(2,3);
218 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIPushTab(PetscViewer);
219 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIPopTab(PetscViewer);
220 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIUseTabs(PetscViewer,PetscTruth);
221 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIISetTab(PetscViewer,PetscInt);
222 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryGetDescriptor(PetscViewer,int*);
223 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryGetInfoPointer(PetscViewer,FILE **);
224 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryRead(PetscViewer,void*,PetscInt,PetscDataType);
225 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryWrite(PetscViewer,void*,PetscInt,PetscDataType,PetscTruth);
226 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerStringSPrintf(PetscViewer,const char[],...) PETSC_PRINTF_FORMAT_CHECK(2,3);
227 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerStringSetString(PetscViewer,char[],PetscInt);
228 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerDrawClear(PetscViewer);
229 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerDrawSetInfo(PetscViewer,const char[],const char[],int,int,int,int);
230 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSocketSetConnection(PetscViewer,const char[],PetscInt);
231 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinarySkipInfo(PetscViewer);
232 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryLoadInfo(PetscViewer);
233 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinarySetSkipOptions(PetscViewer,PetscTruth);
234 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryGetSkipOptions(PetscViewer,PetscTruth*);
235 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryReadStringArray(PetscViewer,char***);
236 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryWriteStringArray(PetscViewer,char**);
237 
238 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerFileSetName(PetscViewer,const char[]);
239 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerFileGetName(PetscViewer,char**);
240 
241 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscPLAPACKInitializePackage(const char[]);
242 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscPLAPACKFinalizePackage(void);
243 
244 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerVUGetPointer(PetscViewer, FILE**);
245 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerVUSetVecSeen(PetscViewer, PetscTruth);
246 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerVUGetVecSeen(PetscViewer, PetscTruth *);
247 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerVUPrintDeferred(PetscViewer, const char [], ...) PETSC_PRINTF_FORMAT_CHECK(2,3);
248 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerVUFlushDeferred(PetscViewer);
249 
250 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMathematicaInitializePackage(const char[]);
251 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMathematicaFinalizePackage(void);
252 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMathematicaGetName(PetscViewer, const char **);
253 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMathematicaSetName(PetscViewer, const char []);
254 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMathematicaClearName(PetscViewer);
255 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMathematicaSkipPackets(PetscViewer, int);
256 
257 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSiloGetName(PetscViewer, char **);
258 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSiloSetName(PetscViewer, const char []);
259 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSiloClearName(PetscViewer);
260 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSiloGetMeshName(PetscViewer, char **);
261 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSiloSetMeshName(PetscViewer, const char []);
262 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSiloClearMeshName(PetscViewer);
263 
264 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerNetcdfOpen(MPI_Comm,const char[],PetscFileMode,PetscViewer*);
265 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerNetcdfGetID(PetscViewer, int *);
266 
267 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerHDF4Open(MPI_Comm,const char[],PetscFileMode,PetscViewer*);
268 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerHDF4WriteSDS(PetscViewer,float *,int,int *,int);
269 
270 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerHDF5Open(MPI_Comm,const char[],PetscFileMode,PetscViewer*);
271 #ifdef PETSC_HAVE_HDF5
272 #include <hdf5.h>
273 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerHDF5GetFileId(PetscViewer,hid_t*);
274 #endif
275 
276 /*
277      These are all the default viewers that do not have
278    to be explicitly opened
279 */
280 EXTERN PetscViewer PETSC_DLLEXPORT PETSC_VIEWER_STDOUT_(MPI_Comm);
281 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIGetStdout(MPI_Comm,PetscViewer*);
282 EXTERN PetscViewer PETSC_DLLEXPORT PETSC_VIEWER_STDERR_(MPI_Comm);
283 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIGetStderr(MPI_Comm,PetscViewer*);
284 EXTERN PetscViewer PETSC_DLLEXPORT PETSC_VIEWER_DRAW_(MPI_Comm);
285 EXTERN PetscViewer PETSC_DLLEXPORT PETSC_VIEWER_SOCKET_(MPI_Comm);
286 EXTERN PetscViewer PETSC_DLLEXPORT PETSC_VIEWER_BINARY_(MPI_Comm);
287 EXTERN PetscViewer PETSC_DLLEXPORT PETSC_VIEWER_MATLAB_(MPI_Comm);
288 EXTERN PetscViewer PETSC_VIEWER_MATHEMATICA_WORLD_PRIVATE;
289 
290 #define PETSC_VIEWER_STDERR_SELF  PETSC_VIEWER_STDERR_(PETSC_COMM_SELF)
291 #define PETSC_VIEWER_STDERR_WORLD PETSC_VIEWER_STDERR_(PETSC_COMM_WORLD)
292 
293 /*MC
294   PETSC_VIEWER_STDOUT_WORLD  - same as PETSC_VIEWER_STDOUT_(PETSC_COMM_WORLD)
295 
296   Level: beginner
297 M*/
298 #define PETSC_VIEWER_STDOUT_WORLD PETSC_VIEWER_STDOUT_(PETSC_COMM_WORLD)
299 
300 /*MC
301   PETSC_VIEWER_STDOUT_SELF  - same as PETSC_VIEWER_STDOUT_(PETSC_COMM_SELF)
302 
303   Level: beginner
304 M*/
305 #define PETSC_VIEWER_STDOUT_SELF  PETSC_VIEWER_STDOUT_(PETSC_COMM_SELF)
306 
307 /*MC
308   PETSC_VIEWER_DRAW_WORLD  - same as PETSC_VIEWER_DRAW_(PETSC_COMM_WORLD)
309 
310   Level: intermediate
311 M*/
312 #define PETSC_VIEWER_DRAW_WORLD   PETSC_VIEWER_DRAW_(PETSC_COMM_WORLD)
313 
314 /*MC
315   PETSC_VIEWER_DRAW_SELF  - same as PETSC_VIEWER_DRAW_(PETSC_COMM_SELF)
316 
317   Level: intermediate
318 M*/
319 #define PETSC_VIEWER_DRAW_SELF    PETSC_VIEWER_DRAW_(PETSC_COMM_SELF)
320 
321 /*MC
322   PETSC_VIEWER_SOCKET_WORLD  - same as PETSC_VIEWER_SOCKET_(PETSC_COMM_WORLD)
323 
324   Level: intermediate
325 M*/
326 #define PETSC_VIEWER_SOCKET_WORLD PETSC_VIEWER_SOCKET_(PETSC_COMM_WORLD)
327 
328 /*MC
329   PETSC_VIEWER_SOCKET_SELF  - same as PETSC_VIEWER_SOCKET_(PETSC_COMM_SELF)
330 
331   Level: intermediate
332 M*/
333 #define PETSC_VIEWER_SOCKET_SELF  PETSC_VIEWER_SOCKET_(PETSC_COMM_SELF)
334 
335 /*MC
336   PETSC_VIEWER_BINARY_WORLD  - same as PETSC_VIEWER_BINARY_(PETSC_COMM_WORLD)
337 
338   Level: intermediate
339 M*/
340 #define PETSC_VIEWER_BINARY_WORLD PETSC_VIEWER_BINARY_(PETSC_COMM_WORLD)
341 
342 /*MC
343   PETSC_VIEWER_BINARY_SELF  - same as PETSC_VIEWER_BINARY_(PETSC_COMM_SELF)
344 
345   Level: intermediate
346 M*/
347 #define PETSC_VIEWER_BINARY_SELF  PETSC_VIEWER_BINARY_(PETSC_COMM_SELF)
348 
349 /*MC
350   PETSC_VIEWER_MATLAB_WORLD  - same as PETSC_VIEWER_MATLAB_(PETSC_COMM_WORLD)
351 
352   Level: intermediate
353 M*/
354 #define PETSC_VIEWER_MATLAB_WORLD PETSC_VIEWER_MATLAB_(PETSC_COMM_WORLD)
355 
356 /*MC
357   PETSC_VIEWER_MATLAB_SELF  - same as PETSC_VIEWER_MATLAB_(PETSC_COMM_SELF)
358 
359   Level: intermediate
360 M*/
361 #define PETSC_VIEWER_MATLAB_SELF  PETSC_VIEWER_MATLAB_(PETSC_COMM_SELF)
362 
363 #define PETSC_VIEWER_MATHEMATICA_WORLD (PetscViewerInitializeMathematicaWorld_Private(),PETSC_VIEWER_MATHEMATICA_WORLD_PRIVATE)
364 
365 /*
366    petscViewer writes to Matlab .mat file
367 */
368 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMatlabPutArray(PetscViewer,int,int,PetscScalar*,char*);
369 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMatlabGetArray(PetscViewer,int,int,PetscScalar*,char*);
370 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMatlabPutVariable(PetscViewer,const char*,void*);
371 
372 /*S
373      PetscViewers - Abstract collection of PetscViewers
374 
375    Level: intermediate
376 
377   Concepts: viewing
378 
379 .seealso:  PetscViewerCreate(), PetscViewerSetType(), PetscViewerType, PetscViewer, PetscViewersCreate(),
380            PetscViewersGetViewer()
381 S*/
382 typedef struct _n_PetscViewers* PetscViewers;
383 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewersCreate(MPI_Comm,PetscViewers*);
384 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewersDestroy(PetscViewers);
385 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewersGetViewer(PetscViewers,PetscInt,PetscViewer*);
386 
387 PETSC_EXTERN_CXX_END
388 #endif
389