1 2 #include <petsc/private/tsimpl.h> /*I "petscts.h" I*/ 3 4 PetscFunctionList TSTrajectoryList = NULL; 5 PetscBool TSTrajectoryRegisterAllCalled = PETSC_FALSE; 6 PetscClassId TSTRAJECTORY_CLASSID; 7 PetscLogEvent TSTrajectory_Set, TSTrajectory_Get; 8 9 #undef __FUNCT__ 10 #define __FUNCT__ "TSTrajectoryRegister" 11 /*@C 12 TSTrajectoryRegister - Adds a way of storing trajectories to the TS package 13 14 Not Collective 15 16 Input Parameters: 17 + name - The name of a new user-defined creation routine 18 - create_func - The creation routine itself 19 20 Notes: 21 TSTrajectoryRegister() may be called multiple times to add several user-defined tses. 22 23 Level: advanced 24 25 .keywords: TS, register 26 27 .seealso: TSTrajectoryRegisterAll(), TSTrajectoryRegisterDestroy() 28 @*/ 29 PetscErrorCode TSTrajectoryRegister(const char sname[],PetscErrorCode (*function)(TSTrajectory,TS)) 30 { 31 PetscErrorCode ierr; 32 33 PetscFunctionBegin; 34 ierr = PetscFunctionListAdd(&TSTrajectoryList,sname,function);CHKERRQ(ierr); 35 PetscFunctionReturn(0); 36 } 37 38 #undef __FUNCT__ 39 #define __FUNCT__ "TSTrajectorySet" 40 PetscErrorCode TSTrajectorySet(TSTrajectory tj,TS ts,PetscInt stepnum,PetscReal time,Vec X) 41 { 42 PetscErrorCode ierr; 43 44 PetscFunctionBegin; 45 if (!tj) PetscFunctionReturn(0); 46 ierr = PetscLogEventBegin(TSTrajectory_Set,tj,ts,0,0);CHKERRQ(ierr); 47 ierr = (*tj->ops->set)(tj,ts,stepnum,time,X);CHKERRQ(ierr); 48 ierr = PetscLogEventEnd(TSTrajectory_Set,tj,ts,0,0);CHKERRQ(ierr); 49 PetscFunctionReturn(0); 50 } 51 52 #undef __FUNCT__ 53 #define __FUNCT__ "TSTrajectoryGet" 54 PetscErrorCode TSTrajectoryGet(TSTrajectory tj,TS ts,PetscInt stepnum,PetscReal *time) 55 { 56 PetscErrorCode ierr; 57 58 PetscFunctionBegin; 59 if (!tj) SETERRQ(PetscObjectComm((PetscObject)ts),PETSC_ERR_ARG_WRONGSTATE,"TS solver did not save trajectory"); 60 ierr = PetscLogEventBegin(TSTrajectory_Get,tj,ts,0,0);CHKERRQ(ierr); 61 ierr = (*tj->ops->get)(tj,ts,stepnum,time);CHKERRQ(ierr); 62 ierr = PetscLogEventEnd(TSTrajectory_Get,tj,ts,0,0);CHKERRQ(ierr); 63 PetscFunctionReturn(0); 64 } 65 66 #undef __FUNCT__ 67 #define __FUNCT__ "TSTrajectoryView" 68 /*@C 69 TSTrajectoryView - Prints information about the trajectory object 70 71 Collective on TSTrajectory 72 73 Input Parameters: 74 + tj - the TSTrajectory context obtained from TSTrajectoryCreate() 75 - viewer - visualization context 76 77 Options Database Key: 78 . -ts_trajectory_view - calls TSTrajectoryView() at end of TSAdjointStep() 79 80 Notes: 81 The available visualization contexts include 82 + PETSC_VIEWER_STDOUT_SELF - standard output (default) 83 - PETSC_VIEWER_STDOUT_WORLD - synchronized standard 84 output where only the first processor opens 85 the file. All other processors send their 86 data to the first processor to print. 87 88 The user can open an alternative visualization context with 89 PetscViewerASCIIOpen() - output to a specified file. 90 91 Level: beginner 92 93 .keywords: TS, timestep, view 94 95 .seealso: PetscViewerASCIIOpen() 96 @*/ 97 PetscErrorCode TSTrajectoryView(TSTrajectory tj,PetscViewer viewer) 98 { 99 PetscErrorCode ierr; 100 PetscBool iascii; 101 102 PetscFunctionBegin; 103 PetscValidHeaderSpecific(tj,TSTRAJECTORY_CLASSID,1); 104 if (!viewer) { 105 ierr = PetscViewerASCIIGetStdout(PetscObjectComm((PetscObject)tj),&viewer);CHKERRQ(ierr); 106 } 107 PetscValidHeaderSpecific(viewer,PETSC_VIEWER_CLASSID,2); 108 PetscCheckSameComm(tj,1,viewer,2); 109 110 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERASCII,&iascii);CHKERRQ(ierr); 111 if (iascii) { 112 ierr = PetscObjectPrintClassNamePrefixType((PetscObject)tj,viewer);CHKERRQ(ierr); 113 ierr = PetscViewerASCIIPrintf(viewer," total number of recomputations for adjoint calculation = %D\n",tj->recomps);CHKERRQ(ierr); 114 ierr = PetscViewerASCIIPrintf(viewer," disk checkpoint reads = %D\n",tj->diskreads);CHKERRQ(ierr); 115 ierr = PetscViewerASCIIPrintf(viewer," disk checkpoint writes = %D\n",tj->diskwrites);CHKERRQ(ierr); 116 if (tj->ops->view) { 117 ierr = (*tj->ops->view)(tj,viewer);CHKERRQ(ierr); 118 } 119 } 120 PetscFunctionReturn(0); 121 } 122 123 #undef __FUNCT__ 124 #define __FUNCT__ "TSTrajectoryCreate" 125 /*@C 126 TSTrajectoryCreate - This function creates an empty trajectory object used to store the time dependent solution of an ODE/DAE 127 128 Collective on MPI_Comm 129 130 Input Parameter: 131 . comm - The communicator 132 133 Output Parameter: 134 . tj - The trajectory object 135 136 Level: advanced 137 138 Notes: Usually one does not call this routine, it is called automatically when one calls TSSetSaveTrajectory(). One can call 139 TSGetTrajectory() to access the created trajectory. 140 141 .keywords: TS, create 142 .seealso: TSSetType(), TSSetUp(), TSDestroy(), TSSetProblemType(), TSGetTrajectory() 143 @*/ 144 PetscErrorCode TSTrajectoryCreate(MPI_Comm comm,TSTrajectory *tj) 145 { 146 TSTrajectory t; 147 PetscErrorCode ierr; 148 149 PetscFunctionBegin; 150 PetscValidPointer(tj,2); 151 *tj = NULL; 152 ierr = TSInitializePackage();CHKERRQ(ierr); 153 154 ierr = PetscHeaderCreate(t,TSTRAJECTORY_CLASSID,"TSTrajectory","Time stepping","TS",comm,TSTrajectoryDestroy,TSTrajectoryView);CHKERRQ(ierr); 155 t->setupcalled = PETSC_FALSE; 156 *tj = t; 157 PetscFunctionReturn(0); 158 } 159 160 #undef __FUNCT__ 161 #define __FUNCT__ "TSTrajectorySetType" 162 /*@C 163 TSTrajectorySetType - Sets the storage method to be used as in a trajectory 164 165 Collective on TS 166 167 Input Parameters: 168 + ts - The TS context 169 - type - A known method 170 171 Options Database Command: 172 . -ts_trajectory_type <type> - Sets the method; use -help for a list of available methods (for instance, basic) 173 174 Level: intermediate 175 176 .keywords: TS, set, type 177 178 .seealso: TS, TSSolve(), TSCreate(), TSSetFromOptions(), TSDestroy(), TSType 179 180 @*/ 181 PetscErrorCode TSTrajectorySetType(TSTrajectory tj,TS ts,const TSTrajectoryType type) 182 { 183 PetscErrorCode (*r)(TSTrajectory,TS); 184 PetscBool match; 185 PetscErrorCode ierr; 186 187 PetscFunctionBegin; 188 PetscValidHeaderSpecific(tj,TSTRAJECTORY_CLASSID,1); 189 ierr = PetscObjectTypeCompare((PetscObject)tj,type,&match);CHKERRQ(ierr); 190 if (match) PetscFunctionReturn(0); 191 192 ierr = PetscFunctionListFind(TSTrajectoryList,type,&r);CHKERRQ(ierr); 193 if (!r) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_UNKNOWN_TYPE,"Unknown TSTrajectory type: %s",type); 194 if (tj->ops->destroy) { 195 ierr = (*(tj)->ops->destroy)(tj);CHKERRQ(ierr); 196 197 tj->ops->destroy = NULL; 198 } 199 ierr = PetscMemzero(tj->ops,sizeof(*tj->ops));CHKERRQ(ierr); 200 201 ierr = PetscObjectChangeTypeName((PetscObject)tj,type);CHKERRQ(ierr); 202 ierr = (*r)(tj,ts);CHKERRQ(ierr); 203 PetscFunctionReturn(0); 204 } 205 206 PETSC_EXTERN PetscErrorCode TSTrajectoryCreate_Basic(TSTrajectory,TS); 207 PETSC_EXTERN PetscErrorCode TSTrajectoryCreate_Singlefile(TSTrajectory,TS); 208 PETSC_EXTERN PetscErrorCode TSTrajectoryCreate_Memory(TSTrajectory,TS); 209 PETSC_EXTERN PetscErrorCode TSTrajectoryCreate_Visualization(TSTrajectory,TS); 210 211 #undef __FUNCT__ 212 #define __FUNCT__ "TSTrajectoryRegisterAll" 213 /*@C 214 TSTrajectoryRegisterAll - Registers all of the trajectory storage schecmes in the TS package. 215 216 Not Collective 217 218 Level: advanced 219 220 .keywords: TS, timestepper, register, all 221 .seealso: TSCreate(), TSRegister(), TSRegisterDestroy() 222 @*/ 223 PetscErrorCode TSTrajectoryRegisterAll(void) 224 { 225 PetscErrorCode ierr; 226 227 PetscFunctionBegin; 228 if (TSTrajectoryRegisterAllCalled) PetscFunctionReturn(0); 229 TSTrajectoryRegisterAllCalled = PETSC_TRUE; 230 231 ierr = TSTrajectoryRegister(TSTRAJECTORYBASIC,TSTrajectoryCreate_Basic);CHKERRQ(ierr); 232 ierr = TSTrajectoryRegister(TSTRAJECTORYSINGLEFILE,TSTrajectoryCreate_Singlefile);CHKERRQ(ierr); 233 ierr = TSTrajectoryRegister(TSTRAJECTORYMEMORY,TSTrajectoryCreate_Memory);CHKERRQ(ierr); 234 ierr = TSTrajectoryRegister(TSTRAJECTORYVISUALIZATION,TSTrajectoryCreate_Visualization);CHKERRQ(ierr); 235 PetscFunctionReturn(0); 236 } 237 238 #undef __FUNCT__ 239 #define __FUNCT__ "TSTrajectoryDestroy" 240 /*@ 241 TSTrajectoryDestroy - Destroys a trajectory context 242 243 Collective on TSTrajectory 244 245 Input Parameter: 246 . ts - the TSTrajectory context obtained from TSTrajectoryCreate() 247 248 Level: advanced 249 250 .keywords: TS, timestepper, destroy 251 252 .seealso: TSCreate(), TSSetUp(), TSSolve() 253 @*/ 254 PetscErrorCode TSTrajectoryDestroy(TSTrajectory *tj) 255 { 256 PetscErrorCode ierr; 257 258 PetscFunctionBegin; 259 if (!*tj) PetscFunctionReturn(0); 260 PetscValidHeaderSpecific((*tj),TSTRAJECTORY_CLASSID,1); 261 if (--((PetscObject)(*tj))->refct > 0) {*tj = 0; PetscFunctionReturn(0);} 262 263 if ((*tj)->ops->destroy) {ierr = (*(*tj)->ops->destroy)((*tj));CHKERRQ(ierr);} 264 ierr = PetscHeaderDestroy(tj);CHKERRQ(ierr); 265 PetscFunctionReturn(0); 266 } 267 268 #undef __FUNCT__ 269 #define __FUNCT__ "TSTrajectorySetTypeFromOptions_Private" 270 /* 271 TSTrajectorySetTypeFromOptions_Private - Sets the type of ts from user options. 272 273 Collective on TSTrajectory 274 275 Input Parameter: 276 . tj - TSTrajectory 277 278 Level: intermediate 279 280 .keywords: TS, set, options, database, type 281 .seealso: TSSetFromOptions(), TSSetType() 282 */ 283 static PetscErrorCode TSTrajectorySetTypeFromOptions_Private(PetscOptionItems *PetscOptionsObject,TSTrajectory tj,TS ts) 284 { 285 PetscBool opt; 286 const char *defaultType; 287 char typeName[256]; 288 PetscBool flg; 289 PetscErrorCode ierr; 290 291 PetscFunctionBegin; 292 if (((PetscObject)tj)->type_name) defaultType = ((PetscObject)tj)->type_name; 293 else defaultType = TSTRAJECTORYBASIC; 294 295 ierr = TSTrajectoryRegisterAll();CHKERRQ(ierr); 296 ierr = PetscOptionsFList("-ts_trajectory_type","TSTrajectory method"," TSTrajectorySetType",TSTrajectoryList,defaultType,typeName,256,&opt);CHKERRQ(ierr); 297 if (opt) { 298 ierr = PetscStrcmp(typeName,TSTRAJECTORYMEMORY,&flg);CHKERRQ(ierr); 299 ierr = TSTrajectorySetType(tj,ts,typeName);CHKERRQ(ierr); 300 } else { 301 ierr = TSTrajectorySetType(tj,ts,defaultType);CHKERRQ(ierr); 302 } 303 PetscFunctionReturn(0); 304 } 305 306 #undef __FUNCT__ 307 #define __FUNCT__ "TSTrajectorySetFromOptions" 308 /*@ 309 TSTrajectorySetFromOptions - Sets various TSTrajectory parameters from user options. 310 311 Collective on TSTrajectory 312 313 Input Parameter: 314 . tj - the TSTrajectory context obtained from TSTrajectoryCreate() 315 316 Options Database Keys: 317 . -ts_trajectory_type <type> - TSTRAJECTORYBASIC 318 . -ts_trajectory_max_cps <int> 319 320 Level: advanced 321 322 Notes: This is not normally called directly by users 323 324 .keywords: TS, timestep, set, options, database, trajectory 325 326 .seealso: TSGetType(), TSSetSaveTrajectory(), TSGetTrajectory() 327 @*/ 328 PetscErrorCode TSTrajectorySetFromOptions(TSTrajectory tj,TS ts) 329 { 330 PetscErrorCode ierr; 331 332 PetscFunctionBegin; 333 PetscValidHeaderSpecific(tj,TSTRAJECTORY_CLASSID,1); 334 PetscValidHeaderSpecific(ts,TS_CLASSID,2); 335 ierr = PetscObjectOptionsBegin((PetscObject)tj);CHKERRQ(ierr); 336 ierr = TSTrajectorySetTypeFromOptions_Private(PetscOptionsObject,tj,ts);CHKERRQ(ierr); 337 /* Handle specific TS options */ 338 if (tj->ops->setfromoptions) { 339 ierr = (*tj->ops->setfromoptions)(PetscOptionsObject,tj);CHKERRQ(ierr); 340 } 341 ierr = PetscOptionsEnd();CHKERRQ(ierr); 342 PetscFunctionReturn(0); 343 } 344 345 #undef __FUNCT__ 346 #define __FUNCT__ "TSTrajectorySetUp" 347 /*@ 348 TSTrajectorySetUp - Sets up the internal data structures, e.g. stacks, for the later use 349 of a TS trajectory. 350 351 Collective on TS 352 353 Input Parameter: 354 . ts - the TS context obtained from TSCreate() 355 . tj - the TS trajectory context 356 357 Level: advanced 358 359 .keywords: TS, setup, checkpoint 360 361 .seealso: TSSetSaveTrajectory(), TSTrajectoryCreate(), TSTrajectoryDestroy() 362 @*/ 363 PetscErrorCode TSTrajectorySetUp(TSTrajectory tj,TS ts) 364 { 365 PetscErrorCode ierr; 366 367 PetscFunctionBegin; 368 if (!tj) PetscFunctionReturn(0); 369 PetscValidHeaderSpecific(tj,TSTRAJECTORY_CLASSID,1); 370 PetscValidHeaderSpecific(ts,TS_CLASSID,2); 371 if (tj->setupcalled) PetscFunctionReturn(0); 372 373 if (!((PetscObject)tj)->type_name) { 374 ierr = TSTrajectorySetType(tj,ts,TSTRAJECTORYBASIC);CHKERRQ(ierr); 375 } 376 if (tj->ops->setup) { 377 ierr = (*tj->ops->setup)(tj,ts);CHKERRQ(ierr); 378 } 379 380 tj->setupcalled = PETSC_TRUE; 381 382 /* Set the counters to zero */ 383 tj->recomps = 0; 384 tj->diskreads = 0; 385 tj->diskwrites = 0; 386 PetscFunctionReturn(0); 387 } 388