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_MATLAB "matlab" 65 66 extern PetscFList PetscViewerList; 67 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerRegisterAll(const char *); 68 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerRegisterDestroy(void); 69 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerInitializePackage(const char[]); 70 71 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerRegister(const char*,const char*,const char*,PetscErrorCode (*)(PetscViewer)); 72 73 /*MC 74 PetscViewerRegisterDynamic - Adds a method to the Krylov subspace solver package. 75 76 Synopsis: 77 PetscErrorCode PetscViewerRegisterDynamic(char *name_solver,char *path,char *name_create,PetscErrorCode (*routine_create)(PetscViewer)) 78 79 Not Collective 80 81 Input Parameters: 82 + name_solver - name of a new user-defined solver 83 . path - path (either absolute or relative) the library containing this solver 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 solvers. 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(ksp,"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 PETSC_DLLEXPORT PetscViewerCreate(MPI_Comm,PetscViewer*); 117 PetscPolymorphicSubroutine(PetscViewerCreate,(PetscViewer *v),(PETSC_COMM_SELF,v)) 118 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSetFromOptions(PetscViewer); 119 120 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIOpen(MPI_Comm,const char[],PetscViewer*); 121 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryCreate(MPI_Comm,PetscViewer*); 122 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryOpen(MPI_Comm,const char[],PetscFileMode,PetscViewer*); 123 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSocketOpen(MPI_Comm,const char[],int,PetscViewer*); 124 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerStringOpen(MPI_Comm,char[],PetscInt,PetscViewer*); 125 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerDrawOpen(MPI_Comm,const char[],const char[],int,int,int,int,PetscViewer*); 126 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMathematicaOpen(MPI_Comm, int, const char[], const char[], PetscViewer *); 127 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSiloOpen(MPI_Comm, const char[], PetscViewer *); 128 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMatlabOpen(MPI_Comm,const char[],PetscFileMode,PetscViewer*); 129 130 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerGetType(PetscViewer,PetscViewerType*); 131 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSetType(PetscViewer,PetscViewerType); 132 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerDestroy(PetscViewer); 133 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerGetSingleton(PetscViewer,PetscViewer*); 134 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerRestoreSingleton(PetscViewer,PetscViewer*); 135 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerGetSubcomm(PetscViewer,MPI_Comm,PetscViewer*); 136 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerRestoreSubcomm(PetscViewer,MPI_Comm,PetscViewer*); 137 138 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSetUp(PetscViewer); 139 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerView(PetscViewer,PetscViewer); 140 141 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSetOptionsPrefix(PetscViewer,const char[]); 142 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerAppendOptionsPrefix(PetscViewer,const char[]); 143 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerGetOptionsPrefix(PetscViewer,const char*[]); 144 145 /*E 146 PetscViewerFormat - Way a viewer presents the object 147 148 Level: beginner 149 150 .seealso: PetscViewerSetFormat(), PetscViewer, PetscViewerType, PetscViewerPushFormat(), PetscViewerPopFormat() 151 E*/ 152 typedef enum { 153 PETSC_VIEWER_ASCII_DEFAULT, 154 PETSC_VIEWER_ASCII_MATLAB, 155 PETSC_VIEWER_ASCII_MATHEMATICA, 156 PETSC_VIEWER_ASCII_IMPL, 157 PETSC_VIEWER_ASCII_INFO, 158 PETSC_VIEWER_ASCII_INFO_DETAIL, 159 PETSC_VIEWER_ASCII_COMMON, 160 PETSC_VIEWER_ASCII_SYMMODU, 161 PETSC_VIEWER_ASCII_INDEX, 162 PETSC_VIEWER_ASCII_DENSE, 163 PETSC_VIEWER_ASCII_VTK, 164 PETSC_VIEWER_ASCII_VTK_CELL, 165 PETSC_VIEWER_ASCII_VTK_COORDS, 166 PETSC_VIEWER_ASCII_PCICE, 167 PETSC_VIEWER_ASCII_PYLITH, 168 PETSC_VIEWER_ASCII_PYLITH_LOCAL, 169 PETSC_VIEWER_BINARY_DEFAULT, 170 PETSC_VIEWER_BINARY_NATIVE, 171 PETSC_VIEWER_DRAW_BASIC, 172 PETSC_VIEWER_DRAW_LG, 173 PETSC_VIEWER_DRAW_CONTOUR, 174 PETSC_VIEWER_DRAW_PORTS, 175 PETSC_VIEWER_NATIVE, 176 PETSC_VIEWER_NOFORMAT, 177 PETSC_VIEWER_ASCII_FACTOR_INFO} PetscViewerFormat; 178 179 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSetFormat(PetscViewer,PetscViewerFormat); 180 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerPushFormat(PetscViewer,PetscViewerFormat); 181 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerPopFormat(PetscViewer); 182 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerGetFormat(PetscViewer,PetscViewerFormat*); 183 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerFlush(PetscViewer); 184 185 /*S 186 PetscViewerASCIIMonitor - Context for the default KSP, SNES and TS monitors that print 187 ASCII strings of residual norms etc. 188 189 190 Level: advanced 191 192 Concepts: viewing, monitoring 193 194 .seealso: PetscViewerCreate(), PetscViewerSetType(), PetscViewerType, KSPMonitorSet(), SNESMonitorSet(), TSMonitorSet(), 195 KSPMonitorDefault(), SNESMonitorDefault() 196 197 S*/ 198 struct _p_PetscViewerASCIIMonitor { 199 PetscViewer viewer; 200 PetscInt tabs; 201 }; 202 typedef struct _p_PetscViewerASCIIMonitor* PetscViewerASCIIMonitor; 203 204 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIMonitorCreate(MPI_Comm,const char *,PetscInt,PetscViewerASCIIMonitor*); 205 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIMonitorDestroy(PetscViewerASCIIMonitor); 206 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIMonitorPrintf(PetscViewerASCIIMonitor,const char[],...); 207 208 /* 209 Operations explicit to a particular class of viewers 210 */ 211 212 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIGetPointer(PetscViewer,FILE**); 213 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerFileGetMode(PetscViewer,PetscFileMode*); 214 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerFileSetMode(PetscViewer,PetscFileMode); 215 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIPrintf(PetscViewer,const char[],...) PETSC_PRINTF_FORMAT_CHECK(2,3); 216 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIISynchronizedPrintf(PetscViewer,const char[],...) PETSC_PRINTF_FORMAT_CHECK(2,3); 217 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIPushTab(PetscViewer); 218 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIPopTab(PetscViewer); 219 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIUseTabs(PetscViewer,PetscTruth); 220 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIISetTab(PetscViewer,PetscInt); 221 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryGetDescriptor(PetscViewer,int*); 222 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryGetInfoPointer(PetscViewer,FILE **); 223 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryRead(PetscViewer,void*,PetscInt,PetscDataType); 224 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryWrite(PetscViewer,void*,PetscInt,PetscDataType,PetscTruth); 225 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerStringSPrintf(PetscViewer,const char[],...) PETSC_PRINTF_FORMAT_CHECK(2,3); 226 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerStringSetString(PetscViewer,char[],PetscInt); 227 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerDrawClear(PetscViewer); 228 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerDrawSetInfo(PetscViewer,const char[],const char[],int,int,int,int); 229 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSocketSetConnection(PetscViewer,const char[],PetscInt); 230 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinarySkipInfo(PetscViewer); 231 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryLoadInfo(PetscViewer); 232 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinarySetSkipOptions(PetscViewer,PetscTruth); 233 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryGetSkipOptions(PetscViewer,PetscTruth*); 234 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryReadStringArray(PetscViewer,char***); 235 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerBinaryWriteStringArray(PetscViewer,char**); 236 237 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerFileSetName(PetscViewer,const char[]); 238 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerFileGetName(PetscViewer,char**); 239 240 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscPLAPACKInitializePackage(const char[]); 241 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscPLAPACKFinalizePackage(void); 242 243 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerVUGetPointer(PetscViewer, FILE**); 244 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerVUSetVecSeen(PetscViewer, PetscTruth); 245 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerVUGetVecSeen(PetscViewer, PetscTruth *); 246 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerVUPrintDeferred(PetscViewer, const char [], ...) PETSC_PRINTF_FORMAT_CHECK(2,3); 247 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerVUFlushDeferred(PetscViewer); 248 249 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMathematicaInitializePackage(const char[]); 250 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMathematicaFinalizePackage(void); 251 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMathematicaGetName(PetscViewer, const char **); 252 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMathematicaSetName(PetscViewer, const char []); 253 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMathematicaClearName(PetscViewer); 254 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMathematicaSkipPackets(PetscViewer, int); 255 256 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSiloGetName(PetscViewer, char **); 257 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSiloSetName(PetscViewer, const char []); 258 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSiloClearName(PetscViewer); 259 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSiloGetMeshName(PetscViewer, char **); 260 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSiloSetMeshName(PetscViewer, const char []); 261 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerSiloClearMeshName(PetscViewer); 262 263 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerNetcdfOpen(MPI_Comm,const char[],PetscFileMode,PetscViewer*); 264 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerNetcdfGetID(PetscViewer, int *); 265 266 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerHDF4Open(MPI_Comm,const char[],PetscFileMode,PetscViewer*); 267 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerHDF4WriteSDS(PetscViewer,float *,int,int *,int); 268 269 /* 270 These are all the default viewers that do not have 271 to be explicitly opened 272 */ 273 EXTERN PetscViewer PETSC_DLLEXPORT PETSC_VIEWER_STDOUT_(MPI_Comm); 274 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIGetStdout(MPI_Comm,PetscViewer*); 275 EXTERN PetscViewer PETSC_DLLEXPORT PETSC_VIEWER_STDERR_(MPI_Comm); 276 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerASCIIGetStderr(MPI_Comm,PetscViewer*); 277 EXTERN PetscViewer PETSC_DLLEXPORT PETSC_VIEWER_DRAW_(MPI_Comm); 278 EXTERN PetscViewer PETSC_DLLEXPORT PETSC_VIEWER_SOCKET_(MPI_Comm); 279 EXTERN PetscViewer PETSC_DLLEXPORT PETSC_VIEWER_BINARY_(MPI_Comm); 280 EXTERN PetscViewer PETSC_DLLEXPORT PETSC_VIEWER_MATLAB_(MPI_Comm); 281 EXTERN PetscViewer PETSC_VIEWER_MATHEMATICA_WORLD_PRIVATE; 282 283 #define PETSC_VIEWER_STDERR_SELF PETSC_VIEWER_STDERR_(PETSC_COMM_SELF) 284 #define PETSC_VIEWER_STDERR_WORLD PETSC_VIEWER_STDERR_(PETSC_COMM_WORLD) 285 286 /*MC 287 PETSC_VIEWER_STDOUT_WORLD - same as PETSC_VIEWER_STDOUT_(PETSC_COMM_WORLD) 288 289 Level: beginner 290 M*/ 291 #define PETSC_VIEWER_STDOUT_WORLD PETSC_VIEWER_STDOUT_(PETSC_COMM_WORLD) 292 293 /*MC 294 PETSC_VIEWER_STDOUT_SELF - same as PETSC_VIEWER_STDOUT_(PETSC_COMM_SELF) 295 296 Level: beginner 297 M*/ 298 #define PETSC_VIEWER_STDOUT_SELF PETSC_VIEWER_STDOUT_(PETSC_COMM_SELF) 299 300 /*MC 301 PETSC_VIEWER_DRAW_WORLD - same as PETSC_VIEWER_DRAW_(PETSC_COMM_WORLD) 302 303 Level: intermediate 304 M*/ 305 #define PETSC_VIEWER_DRAW_WORLD PETSC_VIEWER_DRAW_(PETSC_COMM_WORLD) 306 307 /*MC 308 PETSC_VIEWER_DRAW_SELF - same as PETSC_VIEWER_DRAW_(PETSC_COMM_SELF) 309 310 Level: intermediate 311 M*/ 312 #define PETSC_VIEWER_DRAW_SELF PETSC_VIEWER_DRAW_(PETSC_COMM_SELF) 313 314 /*MC 315 PETSC_VIEWER_SOCKET_WORLD - same as PETSC_VIEWER_SOCKET_(PETSC_COMM_WORLD) 316 317 Level: intermediate 318 M*/ 319 #define PETSC_VIEWER_SOCKET_WORLD PETSC_VIEWER_SOCKET_(PETSC_COMM_WORLD) 320 321 /*MC 322 PETSC_VIEWER_SOCKET_SELF - same as PETSC_VIEWER_SOCKET_(PETSC_COMM_SELF) 323 324 Level: intermediate 325 M*/ 326 #define PETSC_VIEWER_SOCKET_SELF PETSC_VIEWER_SOCKET_(PETSC_COMM_SELF) 327 328 /*MC 329 PETSC_VIEWER_BINARY_WORLD - same as PETSC_VIEWER_BINARY_(PETSC_COMM_WORLD) 330 331 Level: intermediate 332 M*/ 333 #define PETSC_VIEWER_BINARY_WORLD PETSC_VIEWER_BINARY_(PETSC_COMM_WORLD) 334 335 /*MC 336 PETSC_VIEWER_BINARY_SELF - same as PETSC_VIEWER_BINARY_(PETSC_COMM_SELF) 337 338 Level: intermediate 339 M*/ 340 #define PETSC_VIEWER_BINARY_SELF PETSC_VIEWER_BINARY_(PETSC_COMM_SELF) 341 342 /*MC 343 PETSC_VIEWER_MATLAB_WORLD - same as PETSC_VIEWER_MATLAB_(PETSC_COMM_WORLD) 344 345 Level: intermediate 346 M*/ 347 #define PETSC_VIEWER_MATLAB_WORLD PETSC_VIEWER_MATLAB_(PETSC_COMM_WORLD) 348 349 /*MC 350 PETSC_VIEWER_MATLAB_SELF - same as PETSC_VIEWER_MATLAB_(PETSC_COMM_SELF) 351 352 Level: intermediate 353 M*/ 354 #define PETSC_VIEWER_MATLAB_SELF PETSC_VIEWER_MATLAB_(PETSC_COMM_SELF) 355 356 #define PETSC_VIEWER_MATHEMATICA_WORLD (PetscViewerInitializeMathematicaWorld_Private(),PETSC_VIEWER_MATHEMATICA_WORLD_PRIVATE) 357 358 /* 359 petscViewer writes to Matlab .mat file 360 */ 361 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMatlabPutArray(PetscViewer,int,int,PetscScalar*,char*); 362 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMatlabGetArray(PetscViewer,int,int,PetscScalar*,char*); 363 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewerMatlabPutVariable(PetscViewer,const char*,void*); 364 365 /*S 366 PetscViewers - Abstract collection of PetscViewers 367 368 Level: intermediate 369 370 Concepts: viewing 371 372 .seealso: PetscViewerCreate(), PetscViewerSetType(), PetscViewerType, PetscViewer, PetscViewersCreate(), 373 PetscViewersGetViewer() 374 S*/ 375 typedef struct _n_PetscViewers* PetscViewers; 376 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewersCreate(MPI_Comm,PetscViewers*); 377 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewersDestroy(PetscViewers); 378 EXTERN PetscErrorCode PETSC_DLLEXPORT PetscViewersGetViewer(PetscViewers,PetscInt,PetscViewer*); 379 380 PETSC_EXTERN_CXX_END 381 #endif 382