Actual source code: petscviewer.h

petsc-dev 2014-07-25
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  1: /*
  2:      PetscViewers are objects where other objects can be looked at or stored.
  3: */


  8: #include <petscsys.h>
  9: #include <petscviewertypes.h>

 11: PETSC_EXTERN PetscClassId PETSC_VIEWER_CLASSID;

 13: /*J
 14:     PetscViewerType - String with the name of a PETSc PETScViewer

 16:    Level: beginner

 18: .seealso: PetscViewerSetType(), PetscViewer, PetscViewerRegister(), PetscViewerCreate()
 19: J*/
 20: typedef const char* PetscViewerType;
 21: #define PETSCVIEWERSOCKET       "socket"
 22: #define PETSCVIEWERASCII        "ascii"
 23: #define PETSCVIEWERBINARY       "binary"
 24: #define PETSCVIEWERSTRING       "string"
 25: #define PETSCVIEWERDRAW         "draw"
 26: #define PETSCVIEWERVU           "vu"
 27: #define PETSCVIEWERMATHEMATICA  "mathematica"
 28: #define PETSCVIEWERNETCDF       "netcdf"
 29: #define PETSCVIEWERHDF5         "hdf5"
 30: #define PETSCVIEWERVTK          "vtk"
 31: #define PETSCVIEWERMATLAB       "matlab"
 32: #define PETSCVIEWERSAWS          "saws"

 34: PETSC_EXTERN PetscFunctionList PetscViewerList;
 35: PETSC_EXTERN PetscErrorCode PetscViewerRegisterAll(void);
 36: PETSC_EXTERN PetscErrorCode PetscViewerInitializePackage(void);

 38: PETSC_EXTERN PetscErrorCode PetscViewerRegister(const char[],PetscErrorCode (*)(PetscViewer));

 40: PETSC_EXTERN PetscErrorCode PetscViewerCreate(MPI_Comm,PetscViewer*);
 41: PETSC_EXTERN PetscErrorCode PetscViewerSetFromOptions(PetscViewer);
 42: PETSC_EXTERN PetscErrorCode PetscViewerASCIIOpenWithFILE(MPI_Comm,FILE*,PetscViewer*);

 44: PETSC_EXTERN PetscErrorCode PetscViewerASCIIOpen(MPI_Comm,const char[],PetscViewer*);
 45: PETSC_EXTERN PetscErrorCode PetscViewerASCIISetFILE(PetscViewer,FILE*);
 46: PETSC_EXTERN PetscErrorCode PetscViewerBinaryOpen(MPI_Comm,const char[],PetscFileMode,PetscViewer*);
 47: PETSC_EXTERN PetscErrorCode PetscViewerBinaryGetFlowControl(PetscViewer,PetscInt*);
 48: PETSC_EXTERN PetscErrorCode PetscViewerBinarySetFlowControl(PetscViewer,PetscInt);
 49: PETSC_EXTERN PetscErrorCode PetscViewerBinarySetMPIIO(PetscViewer);
 50: PETSC_EXTERN PetscErrorCode PetscViewerBinaryGetMPIIO(PetscViewer,PetscBool *);
 51: #if defined(PETSC_HAVE_MPIIO)
 52: PETSC_EXTERN PetscErrorCode PetscViewerBinaryGetMPIIODescriptor(PetscViewer,MPI_File*);
 53: PETSC_EXTERN PetscErrorCode PetscViewerBinaryGetMPIIOOffset(PetscViewer,MPI_Offset*);
 54: PETSC_EXTERN PetscErrorCode PetscViewerBinaryAddMPIIOOffset(PetscViewer,MPI_Offset);
 55: #endif

 57: PETSC_EXTERN PetscErrorCode PetscViewerSocketOpen(MPI_Comm,const char[],int,PetscViewer*);
 58: PETSC_EXTERN PetscErrorCode PetscViewerStringOpen(MPI_Comm,char[],size_t,PetscViewer*);
 59: PETSC_EXTERN PetscErrorCode PetscViewerDrawOpen(MPI_Comm,const char[],const char[],int,int,int,int,PetscViewer*);
 60: #include <petscdrawtypes.h>
 61: PETSC_EXTERN PetscErrorCode PetscViewerDrawSetDrawType(PetscViewer,PetscDrawType);
 62: PETSC_EXTERN PetscErrorCode PetscViewerMathematicaOpen(MPI_Comm, int, const char[], const char[], PetscViewer *);
 63: PETSC_EXTERN PetscErrorCode PetscViewerSiloOpen(MPI_Comm, const char[], PetscViewer *);
 64: PETSC_EXTERN PetscErrorCode PetscViewerMatlabOpen(MPI_Comm,const char[],PetscFileMode,PetscViewer*);

 66: PETSC_EXTERN PetscErrorCode PetscViewerGetType(PetscViewer,PetscViewerType*);
 67: PETSC_EXTERN PetscErrorCode PetscViewerSetType(PetscViewer,PetscViewerType);
 68: PETSC_EXTERN PetscErrorCode PetscViewerDestroy(PetscViewer*);
 69: PETSC_EXTERN PetscErrorCode PetscViewerGetSingleton(PetscViewer,PetscViewer*);
 70: PETSC_EXTERN PetscErrorCode PetscViewerRestoreSingleton(PetscViewer,PetscViewer*);
 71: PETSC_EXTERN PetscErrorCode PetscViewerGetSubcomm(PetscViewer,MPI_Comm,PetscViewer*);
 72: PETSC_EXTERN PetscErrorCode PetscViewerRestoreSubcomm(PetscViewer,MPI_Comm,PetscViewer*);

 74: PETSC_EXTERN PetscErrorCode PetscViewerSetUp(PetscViewer);
 75: PETSC_EXTERN PetscErrorCode PetscViewerView(PetscViewer,PetscViewer);
 76: PETSC_STATIC_INLINE PetscErrorCode PetscViewerViewFromOptions(PetscViewer A,const char prefix[],const char name[]) {return PetscObjectViewFromOptions((PetscObject)A,prefix,name);}

 78: PETSC_EXTERN PetscErrorCode PetscViewerSetOptionsPrefix(PetscViewer,const char[]);
 79: PETSC_EXTERN PetscErrorCode PetscViewerAppendOptionsPrefix(PetscViewer,const char[]);
 80: PETSC_EXTERN PetscErrorCode PetscViewerGetOptionsPrefix(PetscViewer,const char*[]);

 82: /*E
 83:     PetscViewerFormat - Way a viewer presents the object

 85:    Level: beginner

 87:    The values below are also listed in finclude/petscviewer.h. If another values is added below it
 88:    must also be added there.

 90: .seealso: PetscViewerSetFormat(), PetscViewer, PetscViewerType, PetscViewerPushFormat(), PetscViewerPopFormat()
 91: E*/
 92: typedef enum {
 93:   PETSC_VIEWER_DEFAULT,
 94:   PETSC_VIEWER_ASCII_MATLAB,
 95:   PETSC_VIEWER_ASCII_MATHEMATICA,
 96:   PETSC_VIEWER_ASCII_IMPL,
 97:   PETSC_VIEWER_ASCII_INFO,
 98:   PETSC_VIEWER_ASCII_INFO_DETAIL,
 99:   PETSC_VIEWER_ASCII_COMMON,
100:   PETSC_VIEWER_ASCII_SYMMODU,
101:   PETSC_VIEWER_ASCII_INDEX,
102:   PETSC_VIEWER_ASCII_DENSE,
103:   PETSC_VIEWER_ASCII_MATRIXMARKET,
104:   PETSC_VIEWER_ASCII_VTK,
105:   PETSC_VIEWER_ASCII_VTK_CELL,
106:   PETSC_VIEWER_ASCII_VTK_COORDS,
107:   PETSC_VIEWER_ASCII_PCICE,
108:   PETSC_VIEWER_ASCII_PYTHON,
109:   PETSC_VIEWER_ASCII_FACTOR_INFO,
110:   PETSC_VIEWER_ASCII_LATEX,
111:   PETSC_VIEWER_DRAW_BASIC,
112:   PETSC_VIEWER_DRAW_LG,
113:   PETSC_VIEWER_DRAW_CONTOUR,
114:   PETSC_VIEWER_DRAW_PORTS,
115:   PETSC_VIEWER_VTK_VTS,
116:   PETSC_VIEWER_VTK_VTR,
117:   PETSC_VIEWER_VTK_VTU,
118:   PETSC_VIEWER_BINARY_MATLAB,
119:   PETSC_VIEWER_NATIVE,
120:   PETSC_VIEWER_HDF5_VIZ,
121:   PETSC_VIEWER_NOFORMAT
122:   } PetscViewerFormat;
123: PETSC_EXTERN const char *const PetscViewerFormats[];

125: PETSC_EXTERN PetscErrorCode PetscViewerSetFormat(PetscViewer,PetscViewerFormat);
126: PETSC_EXTERN PetscErrorCode PetscViewerPushFormat(PetscViewer,PetscViewerFormat);
127: PETSC_EXTERN PetscErrorCode PetscViewerPopFormat(PetscViewer);
128: PETSC_EXTERN PetscErrorCode PetscViewerGetFormat(PetscViewer,PetscViewerFormat*);
129: PETSC_EXTERN PetscErrorCode PetscViewerFlush(PetscViewer);

131: PETSC_EXTERN PetscErrorCode PetscOptionsGetViewer(MPI_Comm,const char[],const char[],PetscViewer*,PetscViewerFormat*,PetscBool*);
132: PETSC_EXTERN PetscErrorCode PetscOptionsViewer(const char[],const char[],const char[],PetscViewer*,PetscViewerFormat *,PetscBool *);

134: /*
135:    Operations explicit to a particular class of viewers
136: */

138: PETSC_EXTERN PetscErrorCode PetscViewerASCIIGetPointer(PetscViewer,FILE**);
139: PETSC_EXTERN PetscErrorCode PetscViewerFileGetMode(PetscViewer,PetscFileMode*);
140: PETSC_EXTERN PetscErrorCode PetscViewerFileSetMode(PetscViewer,PetscFileMode);
141: PETSC_EXTERN PetscErrorCode PetscViewerASCIIPrintf(PetscViewer,const char[],...);
142: PETSC_EXTERN PetscErrorCode PetscViewerASCIISynchronizedPrintf(PetscViewer,const char[],...);
143: PETSC_EXTERN PetscErrorCode PetscViewerASCIISynchronizedAllow(PetscViewer,PetscBool);
144: PETSC_EXTERN PetscErrorCode PetscViewerASCIIPushTab(PetscViewer);
145: PETSC_EXTERN PetscErrorCode PetscViewerASCIIPopTab(PetscViewer);
146: PETSC_EXTERN PetscErrorCode PetscViewerASCIIUseTabs(PetscViewer,PetscBool );
147: PETSC_EXTERN PetscErrorCode PetscViewerASCIISetTab(PetscViewer,PetscInt);
148: PETSC_EXTERN PetscErrorCode PetscViewerASCIIGetTab(PetscViewer,PetscInt*);
149: PETSC_EXTERN PetscErrorCode PetscViewerASCIIAddTab(PetscViewer,PetscInt);
150: PETSC_EXTERN PetscErrorCode PetscViewerASCIISubtractTab(PetscViewer,PetscInt);
151: PETSC_EXTERN PetscErrorCode PetscViewerBinaryGetDescriptor(PetscViewer,int*);
152: PETSC_EXTERN PetscErrorCode PetscViewerBinaryGetInfoPointer(PetscViewer,FILE **);
153: PETSC_EXTERN PetscErrorCode PetscViewerBinaryRead(PetscViewer,void*,PetscInt,PetscDataType);
154: PETSC_EXTERN PetscErrorCode PetscViewerBinaryWrite(PetscViewer,void*,PetscInt,PetscDataType,PetscBool );
155: PETSC_EXTERN PetscErrorCode PetscViewerStringSPrintf(PetscViewer,const char[],...);
156: PETSC_EXTERN PetscErrorCode PetscViewerStringSetString(PetscViewer,char[],PetscInt);
157: PETSC_EXTERN PetscErrorCode PetscViewerDrawClear(PetscViewer);
158: PETSC_EXTERN PetscErrorCode PetscViewerDrawSetHold(PetscViewer,PetscBool);
159: PETSC_EXTERN PetscErrorCode PetscViewerDrawGetHold(PetscViewer,PetscBool*);
160: PETSC_EXTERN PetscErrorCode PetscViewerDrawSetPause(PetscViewer,PetscReal);
161: PETSC_EXTERN PetscErrorCode PetscViewerDrawGetPause(PetscViewer,PetscReal*);
162: PETSC_EXTERN PetscErrorCode PetscViewerDrawSetInfo(PetscViewer,const char[],const char[],int,int,int,int);
163: PETSC_EXTERN PetscErrorCode PetscViewerDrawResize(PetscViewer,int,int);
164: PETSC_EXTERN PetscErrorCode PetscViewerDrawSetBounds(PetscViewer,PetscInt,const PetscReal*);
165: PETSC_EXTERN PetscErrorCode PetscViewerDrawGetBounds(PetscViewer,PetscInt*,const PetscReal**);
166: PETSC_EXTERN PetscErrorCode PetscViewerSocketSetConnection(PetscViewer,const char[],int);
167: PETSC_EXTERN PetscErrorCode PetscViewerBinarySkipInfo(PetscViewer);
168: PETSC_EXTERN PetscErrorCode PetscViewerBinarySetSkipOptions(PetscViewer,PetscBool );
169: PETSC_EXTERN PetscErrorCode PetscViewerBinaryGetSkipOptions(PetscViewer,PetscBool *);
170: PETSC_EXTERN PetscErrorCode PetscViewerBinarySetSkipHeader(PetscViewer,PetscBool);
171: PETSC_EXTERN PetscErrorCode PetscViewerBinaryGetSkipHeader(PetscViewer,PetscBool*);
172: PETSC_EXTERN PetscErrorCode PetscViewerBinaryReadStringArray(PetscViewer,char***);
173: PETSC_EXTERN PetscErrorCode PetscViewerBinaryWriteStringArray(PetscViewer,char**);

175: PETSC_EXTERN PetscErrorCode PetscViewerFileSetName(PetscViewer,const char[]);
176: PETSC_EXTERN PetscErrorCode PetscViewerFileGetName(PetscViewer,const char**);

178: PETSC_EXTERN PetscErrorCode PetscViewerVUGetPointer(PetscViewer, FILE**);
179: PETSC_EXTERN PetscErrorCode PetscViewerVUSetVecSeen(PetscViewer, PetscBool );
180: PETSC_EXTERN PetscErrorCode PetscViewerVUGetVecSeen(PetscViewer, PetscBool  *);
181: PETSC_EXTERN PetscErrorCode PetscViewerVUPrintDeferred(PetscViewer, const char [], ...);
182: PETSC_EXTERN PetscErrorCode PetscViewerVUFlushDeferred(PetscViewer);

184: PETSC_EXTERN PetscErrorCode PetscViewerMathematicaInitializePackage(void);
185: PETSC_EXTERN PetscErrorCode PetscViewerMathematicaFinalizePackage(void);
186: PETSC_EXTERN PetscErrorCode PetscViewerMathematicaGetName(PetscViewer, const char **);
187: PETSC_EXTERN PetscErrorCode PetscViewerMathematicaSetName(PetscViewer, const char []);
188: PETSC_EXTERN PetscErrorCode PetscViewerMathematicaClearName(PetscViewer);
189: PETSC_EXTERN PetscErrorCode PetscViewerMathematicaSkipPackets(PetscViewer, int);

191: PETSC_EXTERN PetscErrorCode PetscViewerSiloGetName(PetscViewer, char **);
192: PETSC_EXTERN PetscErrorCode PetscViewerSiloSetName(PetscViewer, const char []);
193: PETSC_EXTERN PetscErrorCode PetscViewerSiloClearName(PetscViewer);
194: PETSC_EXTERN PetscErrorCode PetscViewerSiloGetMeshName(PetscViewer, char **);
195: PETSC_EXTERN PetscErrorCode PetscViewerSiloSetMeshName(PetscViewer, const char []);
196: PETSC_EXTERN PetscErrorCode PetscViewerSiloClearMeshName(PetscViewer);

198: PETSC_EXTERN PetscErrorCode PetscViewerNetcdfOpen(MPI_Comm,const char[],PetscFileMode,PetscViewer*);
199: PETSC_EXTERN PetscErrorCode PetscViewerNetcdfGetID(PetscViewer, int *);

201: typedef enum {PETSC_VTK_POINT_FIELD, PETSC_VTK_POINT_VECTOR_FIELD, PETSC_VTK_CELL_FIELD, PETSC_VTK_CELL_VECTOR_FIELD} PetscViewerVTKFieldType;
202: PETSC_EXTERN PetscErrorCode PetscViewerVTKAddField(PetscViewer,PetscObject,PetscErrorCode (*PetscViewerVTKWriteFunction)(PetscObject,PetscViewer),PetscViewerVTKFieldType,PetscObject);
203: PETSC_EXTERN PetscErrorCode PetscViewerVTKOpen(MPI_Comm,const char[],PetscFileMode,PetscViewer*);

205: /*
206:      These are all the default viewers that do not have to be explicitly opened
207: */
208: PETSC_EXTERN PetscViewer    PETSC_VIEWER_STDOUT_(MPI_Comm);
209: PETSC_EXTERN PetscErrorCode PetscViewerASCIIGetStdout(MPI_Comm,PetscViewer*);
210: PETSC_EXTERN PetscViewer    PETSC_VIEWER_STDERR_(MPI_Comm);
211: PETSC_EXTERN PetscErrorCode PetscViewerASCIIGetStderr(MPI_Comm,PetscViewer*);
212: PETSC_EXTERN PetscViewer    PETSC_VIEWER_DRAW_(MPI_Comm);
213: PETSC_EXTERN PetscViewer    PETSC_VIEWER_SOCKET_(MPI_Comm);
214: PETSC_EXTERN PetscViewer    PETSC_VIEWER_BINARY_(MPI_Comm);
215: PETSC_EXTERN PetscViewer    PETSC_VIEWER_MATLAB_(MPI_Comm);
216: PETSC_EXTERN PetscViewer    PETSC_VIEWER_HDF5_(MPI_Comm);
217: PETSC_EXTERN PetscViewer   PETSC_VIEWER_MATHEMATICA_WORLD_PRIVATE;

219: #define PETSC_VIEWER_STDERR_SELF  PETSC_VIEWER_STDERR_(PETSC_COMM_SELF)
220: #define PETSC_VIEWER_STDERR_WORLD PETSC_VIEWER_STDERR_(PETSC_COMM_WORLD)

222: /*MC
223:   PETSC_VIEWER_STDOUT_WORLD  - same as PETSC_VIEWER_STDOUT_(PETSC_COMM_WORLD)

225:   Level: beginner
226: M*/
227: #define PETSC_VIEWER_STDOUT_WORLD PETSC_VIEWER_STDOUT_(PETSC_COMM_WORLD)

229: /*MC
230:   PETSC_VIEWER_STDOUT_SELF  - same as PETSC_VIEWER_STDOUT_(PETSC_COMM_SELF)

232:   Level: beginner
233: M*/
234: #define PETSC_VIEWER_STDOUT_SELF  PETSC_VIEWER_STDOUT_(PETSC_COMM_SELF)

236: /*MC
237:   PETSC_VIEWER_DRAW_WORLD  - same as PETSC_VIEWER_DRAW_(PETSC_COMM_WORLD)

239:   Level: intermediate
240: M*/
241: #define PETSC_VIEWER_DRAW_WORLD   PETSC_VIEWER_DRAW_(PETSC_COMM_WORLD)

243: /*MC
244:   PETSC_VIEWER_DRAW_SELF  - same as PETSC_VIEWER_DRAW_(PETSC_COMM_SELF)

246:   Level: intermediate
247: M*/
248: #define PETSC_VIEWER_DRAW_SELF    PETSC_VIEWER_DRAW_(PETSC_COMM_SELF)

250: /*MC
251:   PETSC_VIEWER_SOCKET_WORLD  - same as PETSC_VIEWER_SOCKET_(PETSC_COMM_WORLD)

253:   Level: intermediate
254: M*/
255: #define PETSC_VIEWER_SOCKET_WORLD PETSC_VIEWER_SOCKET_(PETSC_COMM_WORLD)

257: /*MC
258:   PETSC_VIEWER_SOCKET_SELF  - same as PETSC_VIEWER_SOCKET_(PETSC_COMM_SELF)

260:   Level: intermediate
261: M*/
262: #define PETSC_VIEWER_SOCKET_SELF  PETSC_VIEWER_SOCKET_(PETSC_COMM_SELF)

264: /*MC
265:   PETSC_VIEWER_BINARY_WORLD  - same as PETSC_VIEWER_BINARY_(PETSC_COMM_WORLD)

267:   Level: intermediate
268: M*/
269: #define PETSC_VIEWER_BINARY_WORLD PETSC_VIEWER_BINARY_(PETSC_COMM_WORLD)

271: /*MC
272:   PETSC_VIEWER_BINARY_SELF  - same as PETSC_VIEWER_BINARY_(PETSC_COMM_SELF)

274:   Level: intermediate
275: M*/
276: #define PETSC_VIEWER_BINARY_SELF  PETSC_VIEWER_BINARY_(PETSC_COMM_SELF)

278: /*MC
279:   PETSC_VIEWER_MATLAB_WORLD  - same as PETSC_VIEWER_MATLAB_(PETSC_COMM_WORLD)

281:   Level: intermediate
282: M*/
283: #define PETSC_VIEWER_MATLAB_WORLD PETSC_VIEWER_MATLAB_(PETSC_COMM_WORLD)

285: /*MC
286:   PETSC_VIEWER_MATLAB_SELF  - same as PETSC_VIEWER_MATLAB_(PETSC_COMM_SELF)

288:   Level: intermediate
289: M*/
290: #define PETSC_VIEWER_MATLAB_SELF  PETSC_VIEWER_MATLAB_(PETSC_COMM_SELF)

292: #define PETSC_VIEWER_MATHEMATICA_WORLD (PetscViewerInitializeMathematicaWorld_Private(),PETSC_VIEWER_MATHEMATICA_WORLD_PRIVATE)

296: PETSC_STATIC_INLINE PetscErrorCode PetscViewerFlowControlStart(PetscViewer viewer,PetscInt *mcnt,PetscInt *cnt)
297: {
300:   PetscViewerBinaryGetFlowControl(viewer,mcnt);
301:   PetscViewerBinaryGetFlowControl(viewer,cnt);
302:   return(0);
303: }

307: PETSC_STATIC_INLINE PetscErrorCode PetscViewerFlowControlStepMaster(PetscViewer viewer,PetscInt i,PetscInt *mcnt,PetscInt cnt)
308: {
310:   MPI_Comm       comm;

313:   PetscObjectGetComm((PetscObject)viewer,&comm);
314:   if (i >= *mcnt) {
315:     *mcnt += cnt;
316:     MPI_Bcast(mcnt,1,MPIU_INT,0,comm);
317:   }
318:   return(0);
319: }

323: PETSC_STATIC_INLINE PetscErrorCode PetscViewerFlowControlEndMaster(PetscViewer viewer,PetscInt *mcnt)
324: {
326:   MPI_Comm       comm;
328:   PetscObjectGetComm((PetscObject)viewer,&comm);
329:   *mcnt = 0;
330:   MPI_Bcast(mcnt,1,MPIU_INT,0,comm);
331:   return(0);
332: }

336: PETSC_STATIC_INLINE PetscErrorCode PetscViewerFlowControlStepWorker(PetscViewer viewer,PetscMPIInt rank,PetscInt *mcnt)
337: {
339:   MPI_Comm       comm;
341:   PetscObjectGetComm((PetscObject)viewer,&comm);
342:   while (PETSC_TRUE) {
343:     if (rank < *mcnt) break;
344:     MPI_Bcast(mcnt,1,MPIU_INT,0,comm);
345:   }
346:   return(0);
347: }

351: PETSC_STATIC_INLINE PetscErrorCode PetscViewerFlowControlEndWorker(PetscViewer viewer,PetscInt *mcnt)
352: {
354:   MPI_Comm       comm;
356:   PetscObjectGetComm((PetscObject)viewer,&comm);
357:   while (PETSC_TRUE) {
358:     MPI_Bcast(mcnt,1,MPIU_INT,0,comm);
359:     if (!*mcnt) break;
360:   }
361:   return(0);
362: }

364: /*
365:    PetscViewer writes to MATLAB .mat file
366: */
367: PETSC_EXTERN PetscErrorCode PetscViewerMatlabPutArray(PetscViewer,int,int,const PetscScalar*,const char*);
368: PETSC_EXTERN PetscErrorCode PetscViewerMatlabGetArray(PetscViewer,int,int,PetscScalar*,const char*);
369: PETSC_EXTERN PetscErrorCode PetscViewerMatlabPutVariable(PetscViewer,const char*,void*);

371: #if defined(PETSC_HAVE_SAWS)
372: PETSC_EXTERN PetscErrorCode PetscObjectViewSAWs(PetscObject,PetscViewer);
373: #endif

375: /*S
376:      PetscViewers - Abstract collection of PetscViewers. It is just an expandable array of viewers.

378:    Level: intermediate

380:   Concepts: viewing

382: .seealso:  PetscViewerCreate(), PetscViewerSetType(), PetscViewerType, PetscViewer, PetscViewersCreate(),
383:            PetscViewersGetViewer()
384: S*/
385: typedef struct _n_PetscViewers* PetscViewers;
386: PETSC_EXTERN PetscErrorCode PetscViewersCreate(MPI_Comm,PetscViewers*);
387: PETSC_EXTERN PetscErrorCode PetscViewersDestroy(PetscViewers*);
388: PETSC_EXTERN PetscErrorCode PetscViewersGetViewer(PetscViewers,PetscInt,PetscViewer*);

390: /* Reset __FUNCT__ in case the user does not define it themselves */

394: #endif