xref: /petsc/include/petscts.h (revision d5b43468fb8780a8feea140ccd6fa3e6a50411cc)
1 /*
2    User interface for the timestepping package. This package
3    is for use in solving time-dependent PDEs.
4 */
5 #ifndef PETSCTS_H
6 #define PETSCTS_H
7 
8 #include <petscsnes.h>
9 #include <petscconvest.h>
10 
11 /* SUBMANSEC = TS */
12 
13 /*S
14      TS - Abstract PETSc object that manages all time-steppers (ODE integrators)
15 
16    Level: beginner
17 
18 .seealso: `TSCreate()`, `TSSetType()`, `TSType`, `SNES`, `KSP`, `PC`, `TSDestroy()`
19 S*/
20 typedef struct _p_TS *TS;
21 
22 /*J
23     TSType - String with the name of a PETSc `TS` method.
24 
25    Level: beginner
26 
27 .seealso: `TSSetType()`, `TS`, `TSRegister()`
28 J*/
29 typedef const char *TSType;
30 #define TSEULER           "euler"
31 #define TSBEULER          "beuler"
32 #define TSBASICSYMPLECTIC "basicsymplectic"
33 #define TSPSEUDO          "pseudo"
34 #define TSCN              "cn"
35 #define TSSUNDIALS        "sundials"
36 #define TSRK              "rk"
37 #define TSPYTHON          "python"
38 #define TSTHETA           "theta"
39 #define TSALPHA           "alpha"
40 #define TSALPHA2          "alpha2"
41 #define TSGLLE            "glle"
42 #define TSGLEE            "glee"
43 #define TSSSP             "ssp"
44 #define TSARKIMEX         "arkimex"
45 #define TSROSW            "rosw"
46 #define TSEIMEX           "eimex"
47 #define TSMIMEX           "mimex"
48 #define TSBDF             "bdf"
49 #define TSRADAU5          "radau5"
50 #define TSMPRK            "mprk"
51 #define TSDISCGRAD        "discgrad"
52 #define TSIRK             "irk"
53 
54 /*E
55     TSProblemType - Determines the type of problem this `TS` object is to be used to solve
56 
57    Level: beginner
58 
59 .seealso: `TSCreate()`
60 E*/
61 typedef enum {
62   TS_LINEAR,
63   TS_NONLINEAR
64 } TSProblemType;
65 
66 /*E
67    TSEquationType - type of `TS` problem that is solved
68 
69    Level: beginner
70 
71    Developer Notes:
72     this must match petsc/finclude/petscts.h
73 
74    Supported types are:
75      `TS_EQ_UNSPECIFIED` (default)
76      `TS_EQ_EXPLICIT` {ODE and DAE index 1, 2, 3, HI}: F(t,U,U_t) := M(t) U_t - G(U,t) = 0
77      `TS_EQ_IMPLICIT` {ODE and DAE index 1, 2, 3, HI}: F(t,U,U_t) = 0
78 
79 .seealso: `TSGetEquationType()`, `TSSetEquationType()`
80 E*/
81 typedef enum {
82   TS_EQ_UNSPECIFIED               = -1,
83   TS_EQ_EXPLICIT                  = 0,
84   TS_EQ_ODE_EXPLICIT              = 1,
85   TS_EQ_DAE_SEMI_EXPLICIT_INDEX1  = 100,
86   TS_EQ_DAE_SEMI_EXPLICIT_INDEX2  = 200,
87   TS_EQ_DAE_SEMI_EXPLICIT_INDEX3  = 300,
88   TS_EQ_DAE_SEMI_EXPLICIT_INDEXHI = 500,
89   TS_EQ_IMPLICIT                  = 1000,
90   TS_EQ_ODE_IMPLICIT              = 1001,
91   TS_EQ_DAE_IMPLICIT_INDEX1       = 1100,
92   TS_EQ_DAE_IMPLICIT_INDEX2       = 1200,
93   TS_EQ_DAE_IMPLICIT_INDEX3       = 1300,
94   TS_EQ_DAE_IMPLICIT_INDEXHI      = 1500
95 } TSEquationType;
96 PETSC_EXTERN const char *const *TSEquationTypes;
97 
98 /*E
99    TSConvergedReason - reason a `TS` method has converged or not
100 
101    Level: beginner
102 
103    Developer Notes:
104     this must match petsc/finclude/petscts.h
105 
106    Each reason has its own manual page.
107 
108 .seealso: `TSGetConvergedReason()`
109 E*/
110 typedef enum {
111   TS_CONVERGED_ITERATING          = 0,
112   TS_CONVERGED_TIME               = 1,
113   TS_CONVERGED_ITS                = 2,
114   TS_CONVERGED_USER               = 3,
115   TS_CONVERGED_EVENT              = 4,
116   TS_CONVERGED_PSEUDO_FATOL       = 5,
117   TS_CONVERGED_PSEUDO_FRTOL       = 6,
118   TS_DIVERGED_NONLINEAR_SOLVE     = -1,
119   TS_DIVERGED_STEP_REJECTED       = -2,
120   TSFORWARD_DIVERGED_LINEAR_SOLVE = -3,
121   TSADJOINT_DIVERGED_LINEAR_SOLVE = -4
122 } TSConvergedReason;
123 PETSC_EXTERN const char *const *TSConvergedReasons;
124 
125 /*MC
126    TS_CONVERGED_ITERATING - this only occurs if `TSGetConvergedReason()` is called during the `TSSolve()`
127 
128    Level: beginner
129 
130 .seealso: `TSSolve()`, `TSGetConvergedReason()`, `TSGetAdapt()`
131 M*/
132 
133 /*MC
134    TS_CONVERGED_TIME - the final time was reached
135 
136    Level: beginner
137 
138 .seealso: `TSSolve()`, `TSGetConvergedReason()`, `TSGetAdapt()`, `TSSetMaxTime()`, `TSGetMaxTime()`, `TSGetSolveTime()`
139 M*/
140 
141 /*MC
142    TS_CONVERGED_ITS - the maximum number of iterations (time-steps) was reached prior to the final time
143 
144    Level: beginner
145 
146 .seealso: `TSSolve()`, `TSGetConvergedReason()`, `TSGetAdapt()`, `TSSetMaxSteps()`, `TSGetMaxSteps()`
147 M*/
148 
149 /*MC
150    TS_CONVERGED_USER - user requested termination
151 
152    Level: beginner
153 
154 .seealso: `TSSolve()`, `TSGetConvergedReason()`, `TSSetConvergedReason()`
155 M*/
156 
157 /*MC
158    TS_CONVERGED_EVENT - user requested termination on event detection
159 
160    Level: beginner
161 
162 .seealso: `TSSolve()`, `TSGetConvergedReason()`, `TSSetConvergedReason()`
163 M*/
164 
165 /*MC
166    TS_CONVERGED_PSEUDO_FRTOL - stops when function norm decreased by a set amount, used only for `TSPSEUDO`
167 
168    Level: beginner
169 
170    Options Database:
171 .   -ts_pseudo_frtol <rtol> - use specified rtol
172 
173 .seealso: `TSSolve()`, `TSGetConvergedReason()`, `TSSetConvergedReason()`, `TS_CONVERGED_PSEUDO_FATOL`
174 M*/
175 
176 /*MC
177    TS_CONVERGED_PSEUDO_FATOL - stops when function norm decreases below a set amount, used only for `TSPSEUDO`
178 
179    Level: beginner
180 
181    Options Database:
182 .   -ts_pseudo_fatol <atol> - use specified atol
183 
184 .seealso: `TSSolve()`, `TSGetConvergedReason()`, `TSSetConvergedReason()`, `TS_CONVERGED_PSEUDO_FRTOL`
185 M*/
186 
187 /*MC
188    TS_DIVERGED_NONLINEAR_SOLVE - too many nonlinear solves failed
189 
190    Level: beginner
191 
192    Notes:
193     See TSSetMaxSNESFailures() for how to allow more nonlinear solver failures.
194 
195 .seealso: `TSSolve()`, `TSGetConvergedReason()`, `TSGetAdapt()`, `TSGetSNES()`, `SNESGetConvergedReason()`, `TSSetMaxSNESFailures()`
196 M*/
197 
198 /*MC
199    TS_DIVERGED_STEP_REJECTED - too many steps were rejected
200 
201    Level: beginner
202 
203    Notes:
204     See TSSetMaxStepRejections() for how to allow more step rejections.
205 
206 .seealso: `TSSolve()`, `TSGetConvergedReason()`, `TSGetAdapt()`, `TSSetMaxStepRejections()`
207 M*/
208 
209 /*E
210    TSExactFinalTimeOption - option for handling of final time step
211 
212    Level: beginner
213 
214    Developer Notes:
215     this must match petsc/finclude/petscts.h
216 
217 $  `TS_EXACTFINALTIME_STEPOVER`    - Don't do anything if final time is exceeded
218 $  `TS_EXACTFINALTIME_INTERPOLATE` - Interpolate back to final time
219 $  `TS_EXACTFINALTIME_MATCHSTEP` - Adapt final time step to match the final time
220 
221 .seealso: `TSGetConvergedReason()`, `TSSetExactFinalTime()`, `TSGetExactFinalTime()`
222 
223 E*/
224 typedef enum {
225   TS_EXACTFINALTIME_UNSPECIFIED = 0,
226   TS_EXACTFINALTIME_STEPOVER    = 1,
227   TS_EXACTFINALTIME_INTERPOLATE = 2,
228   TS_EXACTFINALTIME_MATCHSTEP   = 3
229 } TSExactFinalTimeOption;
230 PETSC_EXTERN const char *const TSExactFinalTimeOptions[];
231 
232 /* Logging support */
233 PETSC_EXTERN PetscClassId TS_CLASSID;
234 PETSC_EXTERN PetscClassId DMTS_CLASSID;
235 PETSC_EXTERN PetscClassId TSADAPT_CLASSID;
236 
237 PETSC_EXTERN PetscErrorCode TSInitializePackage(void);
238 PETSC_EXTERN PetscErrorCode TSFinalizePackage(void);
239 
240 PETSC_EXTERN PetscErrorCode TSCreate(MPI_Comm, TS *);
241 PETSC_EXTERN PetscErrorCode TSClone(TS, TS *);
242 PETSC_EXTERN PetscErrorCode TSDestroy(TS *);
243 
244 PETSC_EXTERN PetscErrorCode TSSetProblemType(TS, TSProblemType);
245 PETSC_EXTERN PetscErrorCode TSGetProblemType(TS, TSProblemType *);
246 PETSC_EXTERN PetscErrorCode TSMonitor(TS, PetscInt, PetscReal, Vec);
247 PETSC_EXTERN PetscErrorCode TSMonitorSet(TS, PetscErrorCode (*)(TS, PetscInt, PetscReal, Vec, void *), void *, PetscErrorCode (*)(void **));
248 PETSC_EXTERN PetscErrorCode TSMonitorSetFromOptions(TS, const char[], const char[], const char[], PetscErrorCode (*)(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *), PetscErrorCode (*)(TS, PetscViewerAndFormat *));
249 PETSC_EXTERN PetscErrorCode TSMonitorCancel(TS);
250 
251 PETSC_EXTERN PetscErrorCode TSSetOptionsPrefix(TS, const char[]);
252 PETSC_EXTERN PetscErrorCode TSAppendOptionsPrefix(TS, const char[]);
253 PETSC_EXTERN PetscErrorCode TSGetOptionsPrefix(TS, const char *[]);
254 PETSC_EXTERN PetscErrorCode TSSetFromOptions(TS);
255 PETSC_EXTERN PetscErrorCode TSSetUp(TS);
256 PETSC_EXTERN PetscErrorCode TSReset(TS);
257 
258 PETSC_EXTERN PetscErrorCode TSSetSolution(TS, Vec);
259 PETSC_EXTERN PetscErrorCode TSGetSolution(TS, Vec *);
260 
261 PETSC_EXTERN PetscErrorCode TS2SetSolution(TS, Vec, Vec);
262 PETSC_EXTERN PetscErrorCode TS2GetSolution(TS, Vec *, Vec *);
263 
264 PETSC_EXTERN PetscErrorCode TSGetSolutionComponents(TS, PetscInt *, Vec *);
265 PETSC_EXTERN PetscErrorCode TSGetAuxSolution(TS, Vec *);
266 PETSC_EXTERN PetscErrorCode TSGetTimeError(TS, PetscInt, Vec *);
267 PETSC_EXTERN PetscErrorCode TSSetTimeError(TS, Vec);
268 
269 PETSC_EXTERN PetscErrorCode TSSetRHSJacobianP(TS, Mat, PetscErrorCode (*)(TS, PetscReal, Vec, Mat, void *), void *);
270 PETSC_EXTERN PetscErrorCode TSGetRHSJacobianP(TS, Mat *, PetscErrorCode (**)(TS, PetscReal, Vec, Mat, void *), void **);
271 PETSC_EXTERN PetscErrorCode TSComputeRHSJacobianP(TS, PetscReal, Vec, Mat);
272 PETSC_EXTERN PetscErrorCode TSSetIJacobianP(TS, Mat, PetscErrorCode (*)(TS, PetscReal, Vec, Vec, PetscReal, Mat, void *), void *);
273 PETSC_EXTERN PetscErrorCode TSComputeIJacobianP(TS, PetscReal, Vec, Vec, PetscReal, Mat, PetscBool);
274 PETSC_EXTERN                PETSC_DEPRECATED_FUNCTION("Use TSGetQuadratureTS then TSComputeRHSJacobianP") PetscErrorCode TSComputeDRDPFunction(TS, PetscReal, Vec, Vec *);
275 PETSC_EXTERN                PETSC_DEPRECATED_FUNCTION("Use TSGetQuadratureTS then TSComputeRHSJacobian") PetscErrorCode TSComputeDRDUFunction(TS, PetscReal, Vec, Vec *);
276 PETSC_EXTERN PetscErrorCode TSSetIHessianProduct(TS, Vec *, PetscErrorCode (*)(TS, PetscReal, Vec, Vec *, Vec, Vec *, void *), Vec *, PetscErrorCode (*)(TS, PetscReal, Vec, Vec *, Vec, Vec *, void *), Vec *, PetscErrorCode (*)(TS, PetscReal, Vec, Vec *, Vec, Vec *, void *), Vec *, PetscErrorCode (*)(TS, PetscReal, Vec, Vec *, Vec, Vec *, void *), void *);
277 PETSC_EXTERN PetscErrorCode TSComputeIHessianProductFunctionUU(TS, PetscReal, Vec, Vec *, Vec, Vec *);
278 PETSC_EXTERN PetscErrorCode TSComputeIHessianProductFunctionUP(TS, PetscReal, Vec, Vec *, Vec, Vec *);
279 PETSC_EXTERN PetscErrorCode TSComputeIHessianProductFunctionPU(TS, PetscReal, Vec, Vec *, Vec, Vec *);
280 PETSC_EXTERN PetscErrorCode TSComputeIHessianProductFunctionPP(TS, PetscReal, Vec, Vec *, Vec, Vec *);
281 PETSC_EXTERN PetscErrorCode TSSetRHSHessianProduct(TS, Vec *, PetscErrorCode (*)(TS, PetscReal, Vec, Vec *, Vec, Vec *, void *), Vec *, PetscErrorCode (*)(TS, PetscReal, Vec, Vec *, Vec, Vec *, void *), Vec *, PetscErrorCode (*)(TS, PetscReal, Vec, Vec *, Vec, Vec *, void *), Vec *, PetscErrorCode (*)(TS, PetscReal, Vec, Vec *, Vec, Vec *, void *), void *);
282 PETSC_EXTERN PetscErrorCode TSComputeRHSHessianProductFunctionUU(TS, PetscReal, Vec, Vec *, Vec, Vec *);
283 PETSC_EXTERN PetscErrorCode TSComputeRHSHessianProductFunctionUP(TS, PetscReal, Vec, Vec *, Vec, Vec *);
284 PETSC_EXTERN PetscErrorCode TSComputeRHSHessianProductFunctionPU(TS, PetscReal, Vec, Vec *, Vec, Vec *);
285 PETSC_EXTERN PetscErrorCode TSComputeRHSHessianProductFunctionPP(TS, PetscReal, Vec, Vec *, Vec, Vec *);
286 PETSC_EXTERN PetscErrorCode TSSetCostHessianProducts(TS, PetscInt, Vec *, Vec *, Vec);
287 PETSC_EXTERN PetscErrorCode TSGetCostHessianProducts(TS, PetscInt *, Vec **, Vec **, Vec *);
288 PETSC_EXTERN PetscErrorCode TSComputeSNESJacobian(TS, Vec, Mat, Mat);
289 
290 /*S
291      TSTrajectory - Abstract PETSc object that stores the trajectory (solution of ODE/DAE at each time step)
292 
293    Level: advanced
294 
295 .seealso: `TSSetSaveTrajectory()`, `TSTrajectoryCreate()`, `TSTrajectorySetType()`, `TSTrajectoryDestroy()`, `TSTrajectoryReset()`
296 S*/
297 typedef struct _p_TSTrajectory *TSTrajectory;
298 
299 /*J
300     TSTrajectorySetType - String with the name of a PETSc `TS` trajectory storage method
301 
302    Level: intermediate
303 
304 .seealso: `TSSetSaveTrajectory()`, `TSTrajectoryCreate()`, `TSTrajectoryDestroy()`
305 J*/
306 typedef const char *TSTrajectoryType;
307 #define TSTRAJECTORYBASIC         "basic"
308 #define TSTRAJECTORYSINGLEFILE    "singlefile"
309 #define TSTRAJECTORYMEMORY        "memory"
310 #define TSTRAJECTORYVISUALIZATION "visualization"
311 
312 PETSC_EXTERN PetscFunctionList TSTrajectoryList;
313 PETSC_EXTERN PetscClassId      TSTRAJECTORY_CLASSID;
314 PETSC_EXTERN PetscBool         TSTrajectoryRegisterAllCalled;
315 
316 PETSC_EXTERN PetscErrorCode TSSetSaveTrajectory(TS);
317 PETSC_EXTERN PetscErrorCode TSResetTrajectory(TS);
318 PETSC_EXTERN PetscErrorCode TSRemoveTrajectory(TS);
319 
320 PETSC_EXTERN PetscErrorCode TSTrajectoryCreate(MPI_Comm, TSTrajectory *);
321 PETSC_EXTERN PetscErrorCode TSTrajectoryReset(TSTrajectory);
322 PETSC_EXTERN PetscErrorCode TSTrajectoryDestroy(TSTrajectory *);
323 PETSC_EXTERN PetscErrorCode TSTrajectoryView(TSTrajectory, PetscViewer);
324 PETSC_EXTERN PetscErrorCode TSTrajectorySetType(TSTrajectory, TS, TSTrajectoryType);
325 PETSC_EXTERN PetscErrorCode TSTrajectoryGetType(TSTrajectory, TS, TSTrajectoryType *);
326 PETSC_EXTERN PetscErrorCode TSTrajectorySet(TSTrajectory, TS, PetscInt, PetscReal, Vec);
327 PETSC_EXTERN PetscErrorCode TSTrajectoryGet(TSTrajectory, TS, PetscInt, PetscReal *);
328 PETSC_EXTERN PetscErrorCode TSTrajectoryGetVecs(TSTrajectory, TS, PetscInt, PetscReal *, Vec, Vec);
329 PETSC_EXTERN PetscErrorCode TSTrajectoryGetUpdatedHistoryVecs(TSTrajectory, TS, PetscReal, Vec *, Vec *);
330 PETSC_EXTERN PetscErrorCode TSTrajectoryGetNumSteps(TSTrajectory, PetscInt *);
331 PETSC_EXTERN PetscErrorCode TSTrajectoryRestoreUpdatedHistoryVecs(TSTrajectory, Vec *, Vec *);
332 PETSC_EXTERN PetscErrorCode TSTrajectorySetFromOptions(TSTrajectory, TS);
333 PETSC_EXTERN PetscErrorCode TSTrajectoryRegister(const char[], PetscErrorCode (*)(TSTrajectory, TS));
334 PETSC_EXTERN PetscErrorCode TSTrajectoryRegisterAll(void);
335 PETSC_EXTERN PetscErrorCode TSTrajectorySetUp(TSTrajectory, TS);
336 PETSC_EXTERN PetscErrorCode TSTrajectorySetUseHistory(TSTrajectory, PetscBool);
337 PETSC_EXTERN PetscErrorCode TSTrajectorySetMonitor(TSTrajectory, PetscBool);
338 PETSC_EXTERN PetscErrorCode TSTrajectorySetVariableNames(TSTrajectory, const char *const *);
339 PETSC_EXTERN PetscErrorCode TSTrajectorySetTransform(TSTrajectory, PetscErrorCode (*)(void *, Vec, Vec *), PetscErrorCode (*)(void *), void *);
340 PETSC_EXTERN PetscErrorCode TSTrajectorySetSolutionOnly(TSTrajectory, PetscBool);
341 PETSC_EXTERN PetscErrorCode TSTrajectoryGetSolutionOnly(TSTrajectory, PetscBool *);
342 PETSC_EXTERN PetscErrorCode TSTrajectorySetKeepFiles(TSTrajectory, PetscBool);
343 PETSC_EXTERN PetscErrorCode TSTrajectorySetDirname(TSTrajectory, const char[]);
344 PETSC_EXTERN PetscErrorCode TSTrajectorySetFiletemplate(TSTrajectory, const char[]);
345 PETSC_EXTERN PetscErrorCode TSGetTrajectory(TS, TSTrajectory *);
346 
347 PETSC_EXTERN PetscErrorCode TSSetCostGradients(TS, PetscInt, Vec *, Vec *);
348 PETSC_EXTERN PetscErrorCode TSGetCostGradients(TS, PetscInt *, Vec **, Vec **);
349 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION("Use TSCreateQuadratureTS() then set up the sub-TS (since version 3.12)") PetscErrorCode TSSetCostIntegrand(TS, PetscInt, Vec, PetscErrorCode (*)(TS, PetscReal, Vec, Vec, void *), PetscErrorCode (*)(TS, PetscReal, Vec, Vec *, void *), PetscErrorCode (*)(TS, PetscReal, Vec, Vec *, void *), PetscBool, void *);
350 PETSC_EXTERN PetscErrorCode TSGetCostIntegral(TS, Vec *);
351 PETSC_EXTERN PetscErrorCode TSComputeCostIntegrand(TS, PetscReal, Vec, Vec);
352 PETSC_EXTERN PetscErrorCode TSCreateQuadratureTS(TS, PetscBool, TS *);
353 PETSC_EXTERN PetscErrorCode TSGetQuadratureTS(TS, PetscBool *, TS *);
354 
355 PETSC_EXTERN PetscErrorCode TSAdjointSetFromOptions(TS, PetscOptionItems *);
356 PETSC_EXTERN PetscErrorCode TSAdjointMonitor(TS, PetscInt, PetscReal, Vec, PetscInt, Vec *, Vec *);
357 PETSC_EXTERN PetscErrorCode TSAdjointMonitorSet(TS, PetscErrorCode (*)(TS, PetscInt, PetscReal, Vec, PetscInt, Vec *, Vec *, void *), void *, PetscErrorCode (*)(void **));
358 PETSC_EXTERN PetscErrorCode TSAdjointMonitorCancel(TS);
359 PETSC_EXTERN PetscErrorCode TSAdjointMonitorSetFromOptions(TS, const char[], const char[], const char[], PetscErrorCode (*)(TS, PetscInt, PetscReal, Vec, PetscInt, Vec *, Vec *, PetscViewerAndFormat *), PetscErrorCode (*)(TS, PetscViewerAndFormat *));
360 
361 PETSC_EXTERN                PETSC_DEPRECATED_FUNCTION("Use TSSetRHSJacobianP()") PetscErrorCode TSAdjointSetRHSJacobian(TS, Mat, PetscErrorCode (*)(TS, PetscReal, Vec, Mat, void *), void *);
362 PETSC_EXTERN                PETSC_DEPRECATED_FUNCTION("Use TSComputeRHSJacobianP()") PetscErrorCode TSAdjointComputeRHSJacobian(TS, PetscReal, Vec, Mat);
363 PETSC_EXTERN                PETSC_DEPRECATED_FUNCTION("Use TSGetQuadratureTS then TSComputeRHSJacobianP") PetscErrorCode TSAdjointComputeDRDPFunction(TS, PetscReal, Vec, Vec *);
364 PETSC_EXTERN                PETSC_DEPRECATED_FUNCTION("Use TSGetQuadratureTS then TSComputeRHSJacobian") PetscErrorCode TSAdjointComputeDRDYFunction(TS, PetscReal, Vec, Vec *);
365 PETSC_EXTERN PetscErrorCode TSAdjointSolve(TS);
366 PETSC_EXTERN PetscErrorCode TSAdjointSetSteps(TS, PetscInt);
367 
368 PETSC_EXTERN PetscErrorCode TSAdjointStep(TS);
369 PETSC_EXTERN PetscErrorCode TSAdjointSetUp(TS);
370 PETSC_EXTERN PetscErrorCode TSAdjointReset(TS);
371 PETSC_EXTERN PetscErrorCode TSAdjointCostIntegral(TS);
372 PETSC_EXTERN PetscErrorCode TSAdjointSetForward(TS, Mat);
373 PETSC_EXTERN PetscErrorCode TSAdjointResetForward(TS);
374 
375 PETSC_EXTERN PetscErrorCode TSForwardSetSensitivities(TS, PetscInt, Mat);
376 PETSC_EXTERN PetscErrorCode TSForwardGetSensitivities(TS, PetscInt *, Mat *);
377 PETSC_EXTERN                PETSC_DEPRECATED_FUNCTION("Use TSCreateQuadratureTS() and TSForwardSetSensitivities() (since version 3.12)") PetscErrorCode TSForwardSetIntegralGradients(TS, PetscInt, Vec *);
378 PETSC_EXTERN                PETSC_DEPRECATED_FUNCTION("Use TSForwardGetSensitivities()") PetscErrorCode TSForwardGetIntegralGradients(TS, PetscInt *, Vec **);
379 PETSC_EXTERN PetscErrorCode TSForwardSetUp(TS);
380 PETSC_EXTERN PetscErrorCode TSForwardReset(TS);
381 PETSC_EXTERN PetscErrorCode TSForwardCostIntegral(TS);
382 PETSC_EXTERN PetscErrorCode TSForwardStep(TS);
383 PETSC_EXTERN PetscErrorCode TSForwardSetInitialSensitivities(TS, Mat);
384 PETSC_EXTERN PetscErrorCode TSForwardGetStages(TS, PetscInt *, Mat *[]);
385 
386 PETSC_EXTERN PetscErrorCode TSSetMaxSteps(TS, PetscInt);
387 PETSC_EXTERN PetscErrorCode TSGetMaxSteps(TS, PetscInt *);
388 PETSC_EXTERN PetscErrorCode TSSetMaxTime(TS, PetscReal);
389 PETSC_EXTERN PetscErrorCode TSGetMaxTime(TS, PetscReal *);
390 PETSC_EXTERN PetscErrorCode TSSetExactFinalTime(TS, TSExactFinalTimeOption);
391 PETSC_EXTERN PetscErrorCode TSGetExactFinalTime(TS, TSExactFinalTimeOption *);
392 PETSC_EXTERN PetscErrorCode TSSetTimeSpan(TS, PetscInt, PetscReal *);
393 PETSC_EXTERN PetscErrorCode TSGetTimeSpan(TS, PetscInt *, const PetscReal **);
394 PETSC_EXTERN PetscErrorCode TSGetTimeSpanSolutions(TS, PetscInt *, Vec **);
395 
396 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION("Use TSSetTime[Step]() (since version 3.8)") PetscErrorCode TSSetInitialTimeStep(TS, PetscReal, PetscReal);
397 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION("Use TSSetMax{Steps|Time}() (since version 3.8)") PetscErrorCode TSSetDuration(TS, PetscInt, PetscReal);
398 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION("Use TSGetMax{Steps|Time}() (since version 3.8)") PetscErrorCode TSGetDuration(TS, PetscInt *, PetscReal *);
399 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION("Use TSGetStepNumber() (since version 3.8)") PetscErrorCode TSGetTimeStepNumber(TS, PetscInt *);
400 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION("Use TSGetStepNumber() (since version 3.8)") PetscErrorCode TSGetTotalSteps(TS, PetscInt *);
401 
402 PETSC_EXTERN PetscErrorCode TSMonitorDefault(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *);
403 PETSC_EXTERN PetscErrorCode TSMonitorExtreme(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *);
404 
405 typedef struct _n_TSMonitorDrawCtx *TSMonitorDrawCtx;
406 PETSC_EXTERN PetscErrorCode         TSMonitorDrawCtxCreate(MPI_Comm, const char[], const char[], int, int, int, int, PetscInt, TSMonitorDrawCtx *);
407 PETSC_EXTERN PetscErrorCode         TSMonitorDrawCtxDestroy(TSMonitorDrawCtx *);
408 PETSC_EXTERN PetscErrorCode         TSMonitorDrawSolution(TS, PetscInt, PetscReal, Vec, void *);
409 PETSC_EXTERN PetscErrorCode         TSMonitorDrawSolutionPhase(TS, PetscInt, PetscReal, Vec, void *);
410 PETSC_EXTERN PetscErrorCode         TSMonitorDrawError(TS, PetscInt, PetscReal, Vec, void *);
411 PETSC_EXTERN PetscErrorCode         TSMonitorDrawSolutionFunction(TS, PetscInt, PetscReal, Vec, void *);
412 
413 PETSC_EXTERN PetscErrorCode TSAdjointMonitorDefault(TS, PetscInt, PetscReal, Vec, PetscInt, Vec *, Vec *, PetscViewerAndFormat *);
414 PETSC_EXTERN PetscErrorCode TSAdjointMonitorDrawSensi(TS, PetscInt, PetscReal, Vec, PetscInt, Vec *, Vec *, void *);
415 
416 PETSC_EXTERN PetscErrorCode TSMonitorSolution(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *);
417 PETSC_EXTERN PetscErrorCode TSMonitorSolutionVTK(TS, PetscInt, PetscReal, Vec, void *);
418 PETSC_EXTERN PetscErrorCode TSMonitorSolutionVTKDestroy(void *);
419 
420 PETSC_EXTERN PetscErrorCode TSStep(TS);
421 PETSC_EXTERN PetscErrorCode TSEvaluateWLTE(TS, NormType, PetscInt *, PetscReal *);
422 PETSC_EXTERN PetscErrorCode TSEvaluateStep(TS, PetscInt, Vec, PetscBool *);
423 PETSC_EXTERN PetscErrorCode TSSolve(TS, Vec);
424 PETSC_EXTERN PetscErrorCode TSGetEquationType(TS, TSEquationType *);
425 PETSC_EXTERN PetscErrorCode TSSetEquationType(TS, TSEquationType);
426 PETSC_EXTERN PetscErrorCode TSGetConvergedReason(TS, TSConvergedReason *);
427 PETSC_EXTERN PetscErrorCode TSSetConvergedReason(TS, TSConvergedReason);
428 PETSC_EXTERN PetscErrorCode TSGetSolveTime(TS, PetscReal *);
429 PETSC_EXTERN PetscErrorCode TSGetSNESIterations(TS, PetscInt *);
430 PETSC_EXTERN PetscErrorCode TSGetKSPIterations(TS, PetscInt *);
431 PETSC_EXTERN PetscErrorCode TSGetStepRejections(TS, PetscInt *);
432 PETSC_EXTERN PetscErrorCode TSSetMaxStepRejections(TS, PetscInt);
433 PETSC_EXTERN PetscErrorCode TSGetSNESFailures(TS, PetscInt *);
434 PETSC_EXTERN PetscErrorCode TSSetMaxSNESFailures(TS, PetscInt);
435 PETSC_EXTERN PetscErrorCode TSSetErrorIfStepFails(TS, PetscBool);
436 PETSC_EXTERN PetscErrorCode TSRestartStep(TS);
437 PETSC_EXTERN PetscErrorCode TSRollBack(TS);
438 
439 PETSC_EXTERN PetscErrorCode TSGetStages(TS, PetscInt *, Vec *[]);
440 
441 PETSC_EXTERN PetscErrorCode TSGetTime(TS, PetscReal *);
442 PETSC_EXTERN PetscErrorCode TSSetTime(TS, PetscReal);
443 PETSC_EXTERN PetscErrorCode TSGetPrevTime(TS, PetscReal *);
444 PETSC_EXTERN PetscErrorCode TSGetTimeStep(TS, PetscReal *);
445 PETSC_EXTERN PetscErrorCode TSSetTimeStep(TS, PetscReal);
446 PETSC_EXTERN PetscErrorCode TSGetStepNumber(TS, PetscInt *);
447 PETSC_EXTERN PetscErrorCode TSSetStepNumber(TS, PetscInt);
448 
449 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*TSRHSFunction)(TS, PetscReal, Vec, Vec, void *);
450 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*TSRHSJacobian)(TS, PetscReal, Vec, Mat, Mat, void *);
451 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*TSRHSJacobianP)(TS, PetscReal, Vec, Mat, void *);
452 PETSC_EXTERN PetscErrorCode TSSetRHSFunction(TS, Vec, TSRHSFunction, void *);
453 PETSC_EXTERN PetscErrorCode TSGetRHSFunction(TS, Vec *, TSRHSFunction *, void **);
454 PETSC_EXTERN PetscErrorCode TSSetRHSJacobian(TS, Mat, Mat, TSRHSJacobian, void *);
455 PETSC_EXTERN PetscErrorCode TSGetRHSJacobian(TS, Mat *, Mat *, TSRHSJacobian *, void **);
456 PETSC_EXTERN PetscErrorCode TSRHSJacobianSetReuse(TS, PetscBool);
457 
458 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*TSSolutionFunction)(TS, PetscReal, Vec, void *);
459 PETSC_EXTERN PetscErrorCode TSSetSolutionFunction(TS, TSSolutionFunction, void *);
460 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*TSForcingFunction)(TS, PetscReal, Vec, void *);
461 PETSC_EXTERN PetscErrorCode TSSetForcingFunction(TS, TSForcingFunction, void *);
462 
463 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*TSIFunction)(TS, PetscReal, Vec, Vec, Vec, void *);
464 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*TSIJacobian)(TS, PetscReal, Vec, Vec, PetscReal, Mat, Mat, void *);
465 PETSC_EXTERN PetscErrorCode TSSetIFunction(TS, Vec, TSIFunction, void *);
466 PETSC_EXTERN PetscErrorCode TSGetIFunction(TS, Vec *, TSIFunction *, void **);
467 PETSC_EXTERN PetscErrorCode TSSetIJacobian(TS, Mat, Mat, TSIJacobian, void *);
468 PETSC_EXTERN PetscErrorCode TSGetIJacobian(TS, Mat *, Mat *, TSIJacobian *, void **);
469 
470 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*TSI2Function)(TS, PetscReal, Vec, Vec, Vec, Vec, void *);
471 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*TSI2Jacobian)(TS, PetscReal, Vec, Vec, Vec, PetscReal, PetscReal, Mat, Mat, void *);
472 PETSC_EXTERN PetscErrorCode TSSetI2Function(TS, Vec, TSI2Function, void *);
473 PETSC_EXTERN PetscErrorCode TSGetI2Function(TS, Vec *, TSI2Function *, void **);
474 PETSC_EXTERN PetscErrorCode TSSetI2Jacobian(TS, Mat, Mat, TSI2Jacobian, void *);
475 PETSC_EXTERN PetscErrorCode TSGetI2Jacobian(TS, Mat *, Mat *, TSI2Jacobian *, void **);
476 
477 PETSC_EXTERN PetscErrorCode TSRHSSplitSetIS(TS, const char[], IS);
478 PETSC_EXTERN PetscErrorCode TSRHSSplitGetIS(TS, const char[], IS *);
479 PETSC_EXTERN PetscErrorCode TSRHSSplitSetRHSFunction(TS, const char[], Vec, TSRHSFunction, void *);
480 PETSC_EXTERN PetscErrorCode TSRHSSplitGetSubTS(TS, const char[], TS *);
481 PETSC_EXTERN PetscErrorCode TSRHSSplitGetSubTSs(TS, PetscInt *, TS *[]);
482 PETSC_EXTERN PetscErrorCode TSSetUseSplitRHSFunction(TS, PetscBool);
483 PETSC_EXTERN PetscErrorCode TSGetUseSplitRHSFunction(TS, PetscBool *);
484 
485 PETSC_EXTERN PetscErrorCode TSComputeRHSFunctionLinear(TS, PetscReal, Vec, Vec, void *);
486 PETSC_EXTERN PetscErrorCode TSComputeRHSJacobianConstant(TS, PetscReal, Vec, Mat, Mat, void *);
487 PETSC_EXTERN PetscErrorCode TSComputeIFunctionLinear(TS, PetscReal, Vec, Vec, Vec, void *);
488 PETSC_EXTERN PetscErrorCode TSComputeIJacobianConstant(TS, PetscReal, Vec, Vec, PetscReal, Mat, Mat, void *);
489 PETSC_EXTERN PetscErrorCode TSComputeSolutionFunction(TS, PetscReal, Vec);
490 PETSC_EXTERN PetscErrorCode TSComputeForcingFunction(TS, PetscReal, Vec);
491 PETSC_EXTERN PetscErrorCode TSComputeIJacobianDefaultColor(TS, PetscReal, Vec, Vec, PetscReal, Mat, Mat, void *);
492 
493 PETSC_EXTERN PetscErrorCode TSSetPreStep(TS, PetscErrorCode (*)(TS));
494 PETSC_EXTERN PetscErrorCode TSSetPreStage(TS, PetscErrorCode (*)(TS, PetscReal));
495 PETSC_EXTERN PetscErrorCode TSSetPostStage(TS, PetscErrorCode (*)(TS, PetscReal, PetscInt, Vec *));
496 PETSC_EXTERN PetscErrorCode TSSetPostEvaluate(TS, PetscErrorCode (*)(TS));
497 PETSC_EXTERN PetscErrorCode TSSetPostStep(TS, PetscErrorCode (*)(TS));
498 PETSC_EXTERN PetscErrorCode TSPreStep(TS);
499 PETSC_EXTERN PetscErrorCode TSPreStage(TS, PetscReal);
500 PETSC_EXTERN PetscErrorCode TSPostStage(TS, PetscReal, PetscInt, Vec *);
501 PETSC_EXTERN PetscErrorCode TSPostEvaluate(TS);
502 PETSC_EXTERN PetscErrorCode TSPostStep(TS);
503 PETSC_EXTERN PetscErrorCode TSInterpolate(TS, PetscReal, Vec);
504 PETSC_EXTERN PetscErrorCode TSSetTolerances(TS, PetscReal, Vec, PetscReal, Vec);
505 PETSC_EXTERN PetscErrorCode TSGetTolerances(TS, PetscReal *, Vec *, PetscReal *, Vec *);
506 PETSC_EXTERN PetscErrorCode TSErrorWeightedNormInfinity(TS, Vec, Vec, PetscReal *, PetscReal *, PetscReal *);
507 PETSC_EXTERN PetscErrorCode TSErrorWeightedNorm2(TS, Vec, Vec, PetscReal *, PetscReal *, PetscReal *);
508 PETSC_EXTERN PetscErrorCode TSErrorWeightedNorm(TS, Vec, Vec, NormType, PetscReal *, PetscReal *, PetscReal *);
509 PETSC_EXTERN PetscErrorCode TSErrorWeightedENormInfinity(TS, Vec, Vec, Vec, PetscReal *, PetscReal *, PetscReal *);
510 PETSC_EXTERN PetscErrorCode TSErrorWeightedENorm2(TS, Vec, Vec, Vec, PetscReal *, PetscReal *, PetscReal *);
511 PETSC_EXTERN PetscErrorCode TSErrorWeightedENorm(TS, Vec, Vec, Vec, NormType, PetscReal *, PetscReal *, PetscReal *);
512 PETSC_EXTERN PetscErrorCode TSSetCFLTimeLocal(TS, PetscReal);
513 PETSC_EXTERN PetscErrorCode TSGetCFLTime(TS, PetscReal *);
514 PETSC_EXTERN PetscErrorCode TSSetFunctionDomainError(TS, PetscErrorCode (*)(TS, PetscReal, Vec, PetscBool *));
515 PETSC_EXTERN PetscErrorCode TSFunctionDomainError(TS, PetscReal, Vec, PetscBool *);
516 
517 PETSC_EXTERN PetscErrorCode TSPseudoSetTimeStep(TS, PetscErrorCode (*)(TS, PetscReal *, void *), void *);
518 PETSC_EXTERN PetscErrorCode TSPseudoTimeStepDefault(TS, PetscReal *, void *);
519 PETSC_EXTERN PetscErrorCode TSPseudoComputeTimeStep(TS, PetscReal *);
520 PETSC_EXTERN PetscErrorCode TSPseudoSetMaxTimeStep(TS, PetscReal);
521 PETSC_EXTERN PetscErrorCode TSPseudoSetVerifyTimeStep(TS, PetscErrorCode (*)(TS, Vec, void *, PetscReal *, PetscBool *), void *);
522 PETSC_EXTERN PetscErrorCode TSPseudoVerifyTimeStepDefault(TS, Vec, void *, PetscReal *, PetscBool *);
523 PETSC_EXTERN PetscErrorCode TSPseudoVerifyTimeStep(TS, Vec, PetscReal *, PetscBool *);
524 PETSC_EXTERN PetscErrorCode TSPseudoSetTimeStepIncrement(TS, PetscReal);
525 PETSC_EXTERN PetscErrorCode TSPseudoIncrementDtFromInitialDt(TS);
526 
527 PETSC_EXTERN PetscErrorCode TSPythonSetType(TS, const char[]);
528 PETSC_EXTERN PetscErrorCode TSPythonGetType(TS, const char *[]);
529 
530 PETSC_EXTERN PetscErrorCode TSComputeRHSFunction(TS, PetscReal, Vec, Vec);
531 PETSC_EXTERN PetscErrorCode TSComputeRHSJacobian(TS, PetscReal, Vec, Mat, Mat);
532 PETSC_EXTERN PetscErrorCode TSComputeIFunction(TS, PetscReal, Vec, Vec, Vec, PetscBool);
533 PETSC_EXTERN PetscErrorCode TSComputeIJacobian(TS, PetscReal, Vec, Vec, PetscReal, Mat, Mat, PetscBool);
534 PETSC_EXTERN PetscErrorCode TSComputeI2Function(TS, PetscReal, Vec, Vec, Vec, Vec);
535 PETSC_EXTERN PetscErrorCode TSComputeI2Jacobian(TS, PetscReal, Vec, Vec, Vec, PetscReal, PetscReal, Mat, Mat);
536 PETSC_EXTERN PetscErrorCode TSComputeLinearStability(TS, PetscReal, PetscReal, PetscReal *, PetscReal *);
537 
538 PETSC_EXTERN PetscErrorCode TSVISetVariableBounds(TS, Vec, Vec);
539 
540 PETSC_EXTERN PetscErrorCode DMTSSetBoundaryLocal(DM, PetscErrorCode (*)(DM, PetscReal, Vec, Vec, void *), void *);
541 PETSC_EXTERN PetscErrorCode DMTSSetRHSFunction(DM, TSRHSFunction, void *);
542 PETSC_EXTERN PetscErrorCode DMTSGetRHSFunction(DM, TSRHSFunction *, void **);
543 PETSC_EXTERN PetscErrorCode DMTSSetRHSFunctionContextDestroy(DM, PetscErrorCode (*)(void *));
544 PETSC_EXTERN PetscErrorCode DMTSSetRHSJacobian(DM, TSRHSJacobian, void *);
545 PETSC_EXTERN PetscErrorCode DMTSGetRHSJacobian(DM, TSRHSJacobian *, void **);
546 PETSC_EXTERN PetscErrorCode DMTSSetRHSJacobianContextDestroy(DM, PetscErrorCode (*)(void *));
547 PETSC_EXTERN PetscErrorCode DMTSSetIFunction(DM, TSIFunction, void *);
548 PETSC_EXTERN PetscErrorCode DMTSGetIFunction(DM, TSIFunction *, void **);
549 PETSC_EXTERN PetscErrorCode DMTSSetIFunctionContextDestroy(DM, PetscErrorCode (*)(void *));
550 PETSC_EXTERN PetscErrorCode DMTSSetIJacobian(DM, TSIJacobian, void *);
551 PETSC_EXTERN PetscErrorCode DMTSGetIJacobian(DM, TSIJacobian *, void **);
552 PETSC_EXTERN PetscErrorCode DMTSSetIJacobianContextDestroy(DM, PetscErrorCode (*)(void *));
553 PETSC_EXTERN PetscErrorCode DMTSSetI2Function(DM, TSI2Function, void *);
554 PETSC_EXTERN PetscErrorCode DMTSGetI2Function(DM, TSI2Function *, void **);
555 PETSC_EXTERN PetscErrorCode DMTSSetI2FunctionContextDestroy(DM, PetscErrorCode (*)(void *));
556 PETSC_EXTERN PetscErrorCode DMTSSetI2Jacobian(DM, TSI2Jacobian, void *);
557 PETSC_EXTERN PetscErrorCode DMTSGetI2Jacobian(DM, TSI2Jacobian *, void **);
558 PETSC_EXTERN PetscErrorCode DMTSSetI2JacobianContextDestroy(DM, PetscErrorCode (*)(void *));
559 
560 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*TSTransientVariable)(TS, Vec, Vec, void *);
561 PETSC_EXTERN PetscErrorCode TSSetTransientVariable(TS, TSTransientVariable, void *);
562 PETSC_EXTERN PetscErrorCode DMTSSetTransientVariable(DM, TSTransientVariable, void *);
563 PETSC_EXTERN PetscErrorCode DMTSGetTransientVariable(DM, TSTransientVariable *, void *);
564 PETSC_EXTERN PetscErrorCode TSComputeTransientVariable(TS, Vec, Vec);
565 PETSC_EXTERN PetscErrorCode TSHasTransientVariable(TS, PetscBool *);
566 
567 PETSC_EXTERN PetscErrorCode DMTSSetSolutionFunction(DM, TSSolutionFunction, void *);
568 PETSC_EXTERN PetscErrorCode DMTSGetSolutionFunction(DM, TSSolutionFunction *, void **);
569 PETSC_EXTERN PetscErrorCode DMTSSetForcingFunction(DM, TSForcingFunction, void *);
570 PETSC_EXTERN PetscErrorCode DMTSGetForcingFunction(DM, TSForcingFunction *, void **);
571 PETSC_EXTERN PetscErrorCode DMTSCheckResidual(TS, DM, PetscReal, Vec, Vec, PetscReal, PetscReal *);
572 PETSC_EXTERN PetscErrorCode DMTSCheckJacobian(TS, DM, PetscReal, Vec, Vec, PetscReal, PetscBool *, PetscReal *);
573 PETSC_EXTERN PetscErrorCode DMTSCheckFromOptions(TS, Vec);
574 
575 PETSC_EXTERN PetscErrorCode DMTSGetIFunctionLocal(DM, PetscErrorCode (**)(DM, PetscReal, Vec, Vec, Vec, void *), void **);
576 PETSC_EXTERN PetscErrorCode DMTSSetIFunctionLocal(DM, PetscErrorCode (*)(DM, PetscReal, Vec, Vec, Vec, void *), void *);
577 PETSC_EXTERN PetscErrorCode DMTSGetIJacobianLocal(DM, PetscErrorCode (**)(DM, PetscReal, Vec, Vec, PetscReal, Mat, Mat, void *), void **);
578 PETSC_EXTERN PetscErrorCode DMTSSetIJacobianLocal(DM, PetscErrorCode (*)(DM, PetscReal, Vec, Vec, PetscReal, Mat, Mat, void *), void *);
579 PETSC_EXTERN PetscErrorCode DMTSGetRHSFunctionLocal(DM, PetscErrorCode (**)(DM, PetscReal, Vec, Vec, void *), void **);
580 PETSC_EXTERN PetscErrorCode DMTSSetRHSFunctionLocal(DM, PetscErrorCode (*)(DM, PetscReal, Vec, Vec, void *), void *);
581 PETSC_EXTERN PetscErrorCode DMTSCreateRHSMassMatrix(DM);
582 PETSC_EXTERN PetscErrorCode DMTSCreateRHSMassMatrixLumped(DM);
583 PETSC_EXTERN PetscErrorCode DMTSDestroyRHSMassMatrix(DM);
584 
585 PETSC_EXTERN PetscErrorCode DMTSSetIFunctionSerialize(DM, PetscErrorCode (*)(void *, PetscViewer), PetscErrorCode (*)(void **, PetscViewer));
586 PETSC_EXTERN PetscErrorCode DMTSSetIJacobianSerialize(DM, PetscErrorCode (*)(void *, PetscViewer), PetscErrorCode (*)(void **, PetscViewer));
587 
588 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*DMDATSRHSFunctionLocal)(DMDALocalInfo *, PetscReal, void *, void *, void *);
589 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*DMDATSRHSJacobianLocal)(DMDALocalInfo *, PetscReal, void *, Mat, Mat, void *);
590 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*DMDATSIFunctionLocal)(DMDALocalInfo *, PetscReal, void *, void *, void *, void *);
591 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*DMDATSIJacobianLocal)(DMDALocalInfo *, PetscReal, void *, void *, PetscReal, Mat, Mat, void *);
592 
593 PETSC_EXTERN PetscErrorCode DMDATSSetRHSFunctionLocal(DM, InsertMode, PetscErrorCode (*)(DMDALocalInfo *, PetscReal, void *, void *, void *), void *);
594 PETSC_EXTERN PetscErrorCode DMDATSSetRHSJacobianLocal(DM, PetscErrorCode (*)(DMDALocalInfo *, PetscReal, void *, Mat, Mat, void *), void *);
595 PETSC_EXTERN PetscErrorCode DMDATSSetIFunctionLocal(DM, InsertMode, PetscErrorCode (*)(DMDALocalInfo *, PetscReal, void *, void *, void *, void *), void *);
596 PETSC_EXTERN PetscErrorCode DMDATSSetIJacobianLocal(DM, PetscErrorCode (*)(DMDALocalInfo *, PetscReal, void *, void *, PetscReal, Mat, Mat, void *), void *);
597 
598 PETSC_EXTERN PetscErrorCode DMPlexTSGetGeometryFVM(DM, Vec *, Vec *, PetscReal *);
599 
600 typedef struct _n_TSMonitorLGCtx *TSMonitorLGCtx;
601 typedef struct {
602   Vec            ray;
603   VecScatter     scatter;
604   PetscViewer    viewer;
605   TSMonitorLGCtx lgctx;
606 } TSMonitorDMDARayCtx;
607 PETSC_EXTERN PetscErrorCode TSMonitorDMDARayDestroy(void **);
608 PETSC_EXTERN PetscErrorCode TSMonitorDMDARay(TS, PetscInt, PetscReal, Vec, void *);
609 PETSC_EXTERN PetscErrorCode TSMonitorLGDMDARay(TS, PetscInt, PetscReal, Vec, void *);
610 
611 /* Dynamic creation and loading functions */
612 PETSC_EXTERN PetscFunctionList TSList;
613 PETSC_EXTERN PetscErrorCode    TSGetType(TS, TSType *);
614 PETSC_EXTERN PetscErrorCode    TSSetType(TS, TSType);
615 PETSC_EXTERN PetscErrorCode    TSRegister(const char[], PetscErrorCode (*)(TS));
616 
617 PETSC_EXTERN PetscErrorCode TSGetSNES(TS, SNES *);
618 PETSC_EXTERN PetscErrorCode TSSetSNES(TS, SNES);
619 PETSC_EXTERN PetscErrorCode TSGetKSP(TS, KSP *);
620 
621 PETSC_EXTERN PetscErrorCode TSView(TS, PetscViewer);
622 PETSC_EXTERN PetscErrorCode TSLoad(TS, PetscViewer);
623 PETSC_EXTERN PetscErrorCode TSViewFromOptions(TS, PetscObject, const char[]);
624 PETSC_EXTERN PetscErrorCode TSTrajectoryViewFromOptions(TSTrajectory, PetscObject, const char[]);
625 
626 #define TS_FILE_CLASSID 1211225
627 
628 PETSC_EXTERN PetscErrorCode TSSetApplicationContext(TS, void *);
629 PETSC_EXTERN PetscErrorCode TSGetApplicationContext(TS, void *);
630 
631 PETSC_EXTERN PetscErrorCode TSMonitorLGCtxCreate(MPI_Comm, const char[], const char[], int, int, int, int, PetscInt, TSMonitorLGCtx *);
632 PETSC_EXTERN PetscErrorCode TSMonitorLGCtxDestroy(TSMonitorLGCtx *);
633 PETSC_EXTERN PetscErrorCode TSMonitorLGTimeStep(TS, PetscInt, PetscReal, Vec, void *);
634 PETSC_EXTERN PetscErrorCode TSMonitorLGSolution(TS, PetscInt, PetscReal, Vec, void *);
635 PETSC_EXTERN PetscErrorCode TSMonitorLGSetVariableNames(TS, const char *const *);
636 PETSC_EXTERN PetscErrorCode TSMonitorLGGetVariableNames(TS, const char *const **);
637 PETSC_EXTERN PetscErrorCode TSMonitorLGCtxSetVariableNames(TSMonitorLGCtx, const char *const *);
638 PETSC_EXTERN PetscErrorCode TSMonitorLGSetDisplayVariables(TS, const char *const *);
639 PETSC_EXTERN PetscErrorCode TSMonitorLGCtxSetDisplayVariables(TSMonitorLGCtx, const char *const *);
640 PETSC_EXTERN PetscErrorCode TSMonitorLGSetTransform(TS, PetscErrorCode (*)(void *, Vec, Vec *), PetscErrorCode (*)(void *), void *);
641 PETSC_EXTERN PetscErrorCode TSMonitorLGCtxSetTransform(TSMonitorLGCtx, PetscErrorCode (*)(void *, Vec, Vec *), PetscErrorCode (*)(void *), void *);
642 PETSC_EXTERN PetscErrorCode TSMonitorLGError(TS, PetscInt, PetscReal, Vec, void *);
643 PETSC_EXTERN PetscErrorCode TSMonitorLGSNESIterations(TS, PetscInt, PetscReal, Vec, void *);
644 PETSC_EXTERN PetscErrorCode TSMonitorLGKSPIterations(TS, PetscInt, PetscReal, Vec, void *);
645 PETSC_EXTERN PetscErrorCode TSMonitorError(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *);
646 PETSC_EXTERN PetscErrorCode TSDMSwarmMonitorMoments(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *);
647 
648 struct _n_TSMonitorLGCtxNetwork {
649   PetscInt     nlg;
650   PetscDrawLG *lg;
651   PetscBool    semilogy;
652   PetscInt     howoften; /* when > 0 uses step % howoften, when negative only final solution plotted */
653 };
654 typedef struct _n_TSMonitorLGCtxNetwork *TSMonitorLGCtxNetwork;
655 PETSC_EXTERN PetscErrorCode              TSMonitorLGCtxNetworkDestroy(TSMonitorLGCtxNetwork *);
656 PETSC_EXTERN PetscErrorCode              TSMonitorLGCtxNetworkCreate(TS, const char[], const char[], int, int, int, int, PetscInt, TSMonitorLGCtxNetwork *);
657 PETSC_EXTERN PetscErrorCode              TSMonitorLGCtxNetworkSolution(TS, PetscInt, PetscReal, Vec, void *);
658 
659 typedef struct _n_TSMonitorEnvelopeCtx *TSMonitorEnvelopeCtx;
660 PETSC_EXTERN PetscErrorCode             TSMonitorEnvelopeCtxCreate(TS, TSMonitorEnvelopeCtx *);
661 PETSC_EXTERN PetscErrorCode             TSMonitorEnvelope(TS, PetscInt, PetscReal, Vec, void *);
662 PETSC_EXTERN PetscErrorCode             TSMonitorEnvelopeGetBounds(TS, Vec *, Vec *);
663 PETSC_EXTERN PetscErrorCode             TSMonitorEnvelopeCtxDestroy(TSMonitorEnvelopeCtx *);
664 
665 typedef struct _n_TSMonitorSPEigCtx *TSMonitorSPEigCtx;
666 PETSC_EXTERN PetscErrorCode          TSMonitorSPEigCtxCreate(MPI_Comm, const char[], const char[], int, int, int, int, PetscInt, TSMonitorSPEigCtx *);
667 PETSC_EXTERN PetscErrorCode          TSMonitorSPEigCtxDestroy(TSMonitorSPEigCtx *);
668 PETSC_EXTERN PetscErrorCode          TSMonitorSPEig(TS, PetscInt, PetscReal, Vec, void *);
669 
670 typedef struct _n_TSMonitorSPCtx *TSMonitorSPCtx;
671 PETSC_EXTERN PetscErrorCode       TSMonitorSPCtxCreate(MPI_Comm, const char[], const char[], int, int, int, int, PetscInt, PetscInt, PetscBool, TSMonitorSPCtx *);
672 PETSC_EXTERN PetscErrorCode       TSMonitorSPCtxDestroy(TSMonitorSPCtx *);
673 PETSC_EXTERN PetscErrorCode       TSMonitorSPSwarmSolution(TS, PetscInt, PetscReal, Vec, void *);
674 
675 PETSC_EXTERN PetscErrorCode TSSetEventHandler(TS, PetscInt, PetscInt[], PetscBool[], PetscErrorCode (*)(TS, PetscReal, Vec, PetscScalar[], void *), PetscErrorCode (*)(TS, PetscInt, PetscInt[], PetscReal, Vec, PetscBool, void *), void *);
676 PETSC_EXTERN PetscErrorCode TSSetPostEventIntervalStep(TS, PetscReal);
677 PETSC_EXTERN PetscErrorCode TSSetEventTolerances(TS, PetscReal, PetscReal[]);
678 PETSC_EXTERN PetscErrorCode TSGetNumEvents(TS, PetscInt *);
679 
680 /*J
681    TSSSPType - string with the name of `TSSSP` scheme.
682 
683    Level: beginner
684 
685 .seealso: `TSSSPSetType()`, `TS`
686 J*/
687 typedef const char *TSSSPType;
688 #define TSSSPRKS2  "rks2"
689 #define TSSSPRKS3  "rks3"
690 #define TSSSPRK104 "rk104"
691 
692 PETSC_EXTERN PetscErrorCode    TSSSPSetType(TS, TSSSPType);
693 PETSC_EXTERN PetscErrorCode    TSSSPGetType(TS, TSSSPType *);
694 PETSC_EXTERN PetscErrorCode    TSSSPSetNumStages(TS, PetscInt);
695 PETSC_EXTERN PetscErrorCode    TSSSPGetNumStages(TS, PetscInt *);
696 PETSC_EXTERN PetscErrorCode    TSSSPInitializePackage(void);
697 PETSC_EXTERN PetscErrorCode    TSSSPFinalizePackage(void);
698 PETSC_EXTERN PetscFunctionList TSSSPList;
699 
700 /*S
701    TSAdapt - Abstract object that manages time-step adaptivity
702 
703    Level: beginner
704 
705 .seealso: `TS`, `TSAdaptCreate()`, `TSAdaptType`
706 S*/
707 typedef struct _p_TSAdapt *TSAdapt;
708 
709 /*J
710     TSAdaptType - String with the name of `TSAdapt` scheme.
711 
712    Level: beginner
713 
714 .seealso: `TSAdaptSetType()`, `TS`
715 J*/
716 typedef const char *TSAdaptType;
717 #define TSADAPTNONE    "none"
718 #define TSADAPTBASIC   "basic"
719 #define TSADAPTDSP     "dsp"
720 #define TSADAPTCFL     "cfl"
721 #define TSADAPTGLEE    "glee"
722 #define TSADAPTHISTORY "history"
723 
724 PETSC_EXTERN PetscErrorCode TSGetAdapt(TS, TSAdapt *);
725 PETSC_EXTERN PetscErrorCode TSAdaptRegister(const char[], PetscErrorCode (*)(TSAdapt));
726 PETSC_EXTERN PetscErrorCode TSAdaptInitializePackage(void);
727 PETSC_EXTERN PetscErrorCode TSAdaptFinalizePackage(void);
728 PETSC_EXTERN PetscErrorCode TSAdaptCreate(MPI_Comm, TSAdapt *);
729 PETSC_EXTERN PetscErrorCode TSAdaptSetType(TSAdapt, TSAdaptType);
730 PETSC_EXTERN PetscErrorCode TSAdaptGetType(TSAdapt, TSAdaptType *);
731 PETSC_EXTERN PetscErrorCode TSAdaptSetOptionsPrefix(TSAdapt, const char[]);
732 PETSC_EXTERN PetscErrorCode TSAdaptCandidatesClear(TSAdapt);
733 PETSC_EXTERN PetscErrorCode TSAdaptCandidateAdd(TSAdapt, const char[], PetscInt, PetscInt, PetscReal, PetscReal, PetscBool);
734 PETSC_EXTERN PetscErrorCode TSAdaptCandidatesGet(TSAdapt, PetscInt *, const PetscInt **, const PetscInt **, const PetscReal **, const PetscReal **);
735 PETSC_EXTERN PetscErrorCode TSAdaptChoose(TSAdapt, TS, PetscReal, PetscInt *, PetscReal *, PetscBool *);
736 PETSC_EXTERN PetscErrorCode TSAdaptCheckStage(TSAdapt, TS, PetscReal, Vec, PetscBool *);
737 PETSC_EXTERN PetscErrorCode TSAdaptView(TSAdapt, PetscViewer);
738 PETSC_EXTERN PetscErrorCode TSAdaptLoad(TSAdapt, PetscViewer);
739 PETSC_EXTERN PetscErrorCode TSAdaptSetFromOptions(TSAdapt, PetscOptionItems *);
740 PETSC_EXTERN PetscErrorCode TSAdaptReset(TSAdapt);
741 PETSC_EXTERN PetscErrorCode TSAdaptDestroy(TSAdapt *);
742 PETSC_EXTERN PetscErrorCode TSAdaptSetMonitor(TSAdapt, PetscBool);
743 PETSC_EXTERN PetscErrorCode TSAdaptSetAlwaysAccept(TSAdapt, PetscBool);
744 PETSC_EXTERN PetscErrorCode TSAdaptSetSafety(TSAdapt, PetscReal, PetscReal);
745 PETSC_EXTERN PetscErrorCode TSAdaptGetSafety(TSAdapt, PetscReal *, PetscReal *);
746 PETSC_EXTERN PetscErrorCode TSAdaptSetMaxIgnore(TSAdapt, PetscReal);
747 PETSC_EXTERN PetscErrorCode TSAdaptGetMaxIgnore(TSAdapt, PetscReal *);
748 PETSC_EXTERN PetscErrorCode TSAdaptSetClip(TSAdapt, PetscReal, PetscReal);
749 PETSC_EXTERN PetscErrorCode TSAdaptGetClip(TSAdapt, PetscReal *, PetscReal *);
750 PETSC_EXTERN PetscErrorCode TSAdaptSetScaleSolveFailed(TSAdapt, PetscReal);
751 PETSC_EXTERN PetscErrorCode TSAdaptGetScaleSolveFailed(TSAdapt, PetscReal *);
752 PETSC_EXTERN PetscErrorCode TSAdaptSetStepLimits(TSAdapt, PetscReal, PetscReal);
753 PETSC_EXTERN PetscErrorCode TSAdaptGetStepLimits(TSAdapt, PetscReal *, PetscReal *);
754 PETSC_EXTERN PetscErrorCode TSAdaptSetCheckStage(TSAdapt, PetscErrorCode (*)(TSAdapt, TS, PetscReal, Vec, PetscBool *));
755 PETSC_EXTERN PetscErrorCode TSAdaptHistorySetHistory(TSAdapt, PetscInt n, PetscReal hist[], PetscBool);
756 PETSC_EXTERN PetscErrorCode TSAdaptHistorySetTrajectory(TSAdapt, TSTrajectory, PetscBool);
757 PETSC_EXTERN PetscErrorCode TSAdaptHistoryGetStep(TSAdapt, PetscInt, PetscReal *, PetscReal *);
758 PETSC_EXTERN PetscErrorCode TSAdaptSetTimeStepIncreaseDelay(TSAdapt, PetscInt);
759 PETSC_EXTERN PetscErrorCode TSAdaptDSPSetFilter(TSAdapt, const char *);
760 PETSC_EXTERN PetscErrorCode TSAdaptDSPSetPID(TSAdapt, PetscReal, PetscReal, PetscReal);
761 
762 /*S
763    TSGLLEAdapt - Abstract object that manages time-step adaptivity for `TSGLLE`
764 
765    Level: beginner
766 
767    Developer Notes:
768    This functionality should be replaced by the `TSAdapt`.
769 
770 .seealso: `TSGLLE`, `TSGLLEAdaptCreate()`, `TSGLLEAdaptType`
771 S*/
772 typedef struct _p_TSGLLEAdapt *TSGLLEAdapt;
773 
774 /*J
775     TSGLLEAdaptType - String with the name of `TSGLLEAdapt` scheme
776 
777    Level: beginner
778 
779 .seealso: `TSGLLEAdaptSetType()`, `TS`
780 J*/
781 typedef const char *TSGLLEAdaptType;
782 #define TSGLLEADAPT_NONE "none"
783 #define TSGLLEADAPT_SIZE "size"
784 #define TSGLLEADAPT_BOTH "both"
785 
786 PETSC_EXTERN PetscErrorCode TSGLLEAdaptRegister(const char[], PetscErrorCode (*)(TSGLLEAdapt));
787 PETSC_EXTERN PetscErrorCode TSGLLEAdaptInitializePackage(void);
788 PETSC_EXTERN PetscErrorCode TSGLLEAdaptFinalizePackage(void);
789 PETSC_EXTERN PetscErrorCode TSGLLEAdaptCreate(MPI_Comm, TSGLLEAdapt *);
790 PETSC_EXTERN PetscErrorCode TSGLLEAdaptSetType(TSGLLEAdapt, TSGLLEAdaptType);
791 PETSC_EXTERN PetscErrorCode TSGLLEAdaptSetOptionsPrefix(TSGLLEAdapt, const char[]);
792 PETSC_EXTERN PetscErrorCode TSGLLEAdaptChoose(TSGLLEAdapt, PetscInt, const PetscInt[], const PetscReal[], const PetscReal[], PetscInt, PetscReal, PetscReal, PetscInt *, PetscReal *, PetscBool *);
793 PETSC_EXTERN PetscErrorCode TSGLLEAdaptView(TSGLLEAdapt, PetscViewer);
794 PETSC_EXTERN PetscErrorCode TSGLLEAdaptSetFromOptions(TSGLLEAdapt, PetscOptionItems *);
795 PETSC_EXTERN PetscErrorCode TSGLLEAdaptDestroy(TSGLLEAdapt *);
796 
797 /*J
798     TSGLLEAcceptType - String with the name of `TSGLLEAccept` scheme
799 
800    Level: beginner
801 
802 .seealso: `TSGLLESetAcceptType()`, `TS`
803 J*/
804 typedef const char *TSGLLEAcceptType;
805 #define TSGLLEACCEPT_ALWAYS "always"
806 
807 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*TSGLLEAcceptFunction)(TS, PetscReal, PetscReal, const PetscReal[], PetscBool *);
808 PETSC_EXTERN PetscErrorCode TSGLLEAcceptRegister(const char[], TSGLLEAcceptFunction);
809 
810 /*J
811   TSGLLEType - family of time integration method within the General Linear class
812 
813   Level: beginner
814 
815 .seealso: `TSGLLESetType()`, `TSGLLERegister()`
816 J*/
817 typedef const char *TSGLLEType;
818 #define TSGLLE_IRKS "irks"
819 
820 PETSC_EXTERN PetscErrorCode TSGLLERegister(const char[], PetscErrorCode (*)(TS));
821 PETSC_EXTERN PetscErrorCode TSGLLEInitializePackage(void);
822 PETSC_EXTERN PetscErrorCode TSGLLEFinalizePackage(void);
823 PETSC_EXTERN PetscErrorCode TSGLLESetType(TS, TSGLLEType);
824 PETSC_EXTERN PetscErrorCode TSGLLEGetAdapt(TS, TSGLLEAdapt *);
825 PETSC_EXTERN PetscErrorCode TSGLLESetAcceptType(TS, TSGLLEAcceptType);
826 
827 /*J
828     TSEIMEXType - String with the name of an Extrapolated IMEX method.
829 
830    Level: beginner
831 
832 .seealso: `TSEIMEXSetType()`, `TS`, `TSEIMEX`, `TSEIMEXRegister()`
833 J*/
834 #define TSEIMEXType char *
835 
836 PETSC_EXTERN PetscErrorCode TSEIMEXSetMaxRows(TS ts, PetscInt);
837 PETSC_EXTERN PetscErrorCode TSEIMEXSetRowCol(TS ts, PetscInt, PetscInt);
838 PETSC_EXTERN PetscErrorCode TSEIMEXSetOrdAdapt(TS, PetscBool);
839 
840 /*J
841     TSRKType - String with the name of a Runge-Kutta method.
842 
843    Level: beginner
844 
845 .seealso: `TSRKSetType()`, `TS`, `TSRK`, `TSRKRegister()`
846 J*/
847 typedef const char *TSRKType;
848 #define TSRK1FE "1fe"
849 #define TSRK2A  "2a"
850 #define TSRK2B  "2b"
851 #define TSRK3   "3"
852 #define TSRK3BS "3bs"
853 #define TSRK4   "4"
854 #define TSRK5F  "5f"
855 #define TSRK5DP "5dp"
856 #define TSRK5BS "5bs"
857 #define TSRK6VR "6vr"
858 #define TSRK7VR "7vr"
859 #define TSRK8VR "8vr"
860 
861 PETSC_EXTERN PetscErrorCode TSRKGetOrder(TS, PetscInt *);
862 PETSC_EXTERN PetscErrorCode TSRKGetType(TS, TSRKType *);
863 PETSC_EXTERN PetscErrorCode TSRKSetType(TS, TSRKType);
864 PETSC_EXTERN PetscErrorCode TSRKGetTableau(TS, PetscInt *, const PetscReal **, const PetscReal **, const PetscReal **, const PetscReal **, PetscInt *, const PetscReal **, PetscBool *);
865 PETSC_EXTERN PetscErrorCode TSRKSetMultirate(TS, PetscBool);
866 PETSC_EXTERN PetscErrorCode TSRKGetMultirate(TS, PetscBool *);
867 PETSC_EXTERN PetscErrorCode TSRKRegister(TSRKType, PetscInt, PetscInt, const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], PetscInt, const PetscReal[]);
868 PETSC_EXTERN PetscErrorCode TSRKInitializePackage(void);
869 PETSC_EXTERN PetscErrorCode TSRKFinalizePackage(void);
870 PETSC_EXTERN PetscErrorCode TSRKRegisterDestroy(void);
871 
872 /*J
873    TSMPRKType - String with the name of a Partitioned Runge-Kutta method
874 
875    Level: beginner
876 
877 .seealso: `TSMPRKSetType()`, `TS`, `TSMPRK`, `TSMPRKRegister()`
878 J*/
879 typedef const char *TSMPRKType;
880 #define TSMPRK2A22 "2a22"
881 #define TSMPRK2A23 "2a23"
882 #define TSMPRK2A32 "2a32"
883 #define TSMPRK2A33 "2a33"
884 #define TSMPRKP2   "p2"
885 #define TSMPRKP3   "p3"
886 
887 PETSC_EXTERN PetscErrorCode TSMPRKGetType(TS ts, TSMPRKType *);
888 PETSC_EXTERN PetscErrorCode TSMPRKSetType(TS ts, TSMPRKType);
889 PETSC_EXTERN PetscErrorCode TSMPRKRegister(TSMPRKType, PetscInt, PetscInt, PetscInt, PetscInt, const PetscReal[], const PetscReal[], const PetscReal[], const PetscInt[], const PetscReal[], const PetscReal[], const PetscReal[], const PetscInt[], const PetscReal[], const PetscReal[], const PetscReal[]);
890 PETSC_EXTERN PetscErrorCode TSMPRKInitializePackage(void);
891 PETSC_EXTERN PetscErrorCode TSMPRKFinalizePackage(void);
892 PETSC_EXTERN PetscErrorCode TSMPRKRegisterDestroy(void);
893 
894 /*J
895     TSIRKType - String with the name of an implicit Runge-Kutta method.
896 
897    Level: beginner
898 
899 .seealso: `TSIRKSetType()`, `TS`, `TSIRK`, `TSIRKRegister()`
900 J*/
901 typedef const char *TSIRKType;
902 #define TSIRKGAUSS "gauss"
903 
904 PETSC_EXTERN PetscErrorCode TSIRKGetOrder(TS, PetscInt *);
905 PETSC_EXTERN PetscErrorCode TSIRKGetType(TS, TSIRKType *);
906 PETSC_EXTERN PetscErrorCode TSIRKSetType(TS, TSIRKType);
907 PETSC_EXTERN PetscErrorCode TSIRKGetNumStages(TS, PetscInt *);
908 PETSC_EXTERN PetscErrorCode TSIRKSetNumStages(TS, PetscInt);
909 PETSC_EXTERN PetscErrorCode TSIRKRegister(const char[], PetscErrorCode (*function)(TS));
910 PETSC_EXTERN PetscErrorCode TSIRKTableauCreate(TS, PetscInt, const PetscReal *, const PetscReal *, const PetscReal *, const PetscReal *, const PetscScalar *, const PetscScalar *, const PetscScalar *);
911 PETSC_EXTERN PetscErrorCode TSIRKInitializePackage(void);
912 PETSC_EXTERN PetscErrorCode TSIRKFinalizePackage(void);
913 PETSC_EXTERN PetscErrorCode TSIRKRegisterDestroy(void);
914 
915 /*J
916     TSGLEEType - String with the name of a General Linear with Error Estimation method.
917 
918    Level: beginner
919 
920 .seealso: `TSGLEESetType()`, `TS`, `TSGLEE`, `TSGLEERegister()`
921 J*/
922 typedef const char *TSGLEEType;
923 #define TSGLEEi1      "BE1"
924 #define TSGLEE23      "23"
925 #define TSGLEE24      "24"
926 #define TSGLEE25I     "25i"
927 #define TSGLEE35      "35"
928 #define TSGLEEEXRK2A  "exrk2a"
929 #define TSGLEERK32G1  "rk32g1"
930 #define TSGLEERK285EX "rk285ex"
931 /*J
932     TSGLEEMode - String with the mode of error estimation for a General Linear with Error Estimation method.
933 
934    Level: beginner
935 
936 .seealso: `TSGLEESetMode()`, `TS`, `TSGLEE`, `TSGLEERegister()`
937 J*/
938 PETSC_EXTERN PetscErrorCode TSGLEEGetType(TS ts, TSGLEEType *);
939 PETSC_EXTERN PetscErrorCode TSGLEESetType(TS ts, TSGLEEType);
940 PETSC_EXTERN PetscErrorCode TSGLEERegister(TSGLEEType, PetscInt, PetscInt, PetscInt, PetscReal, const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], PetscInt, const PetscReal[]);
941 PETSC_EXTERN PetscErrorCode TSGLEEFinalizePackage(void);
942 PETSC_EXTERN PetscErrorCode TSGLEEInitializePackage(void);
943 PETSC_EXTERN PetscErrorCode TSGLEERegisterDestroy(void);
944 
945 /*J
946     TSARKIMEXType - String with the name of an Additive Runge-Kutta IMEX method.
947 
948    Level: beginner
949 
950 .seealso: `TSARKIMEXSetType()`, `TS`, `TSARKIMEX`, `TSARKIMEXRegister()`
951 J*/
952 typedef const char *TSARKIMEXType;
953 #define TSARKIMEX1BEE   "1bee"
954 #define TSARKIMEXA2     "a2"
955 #define TSARKIMEXL2     "l2"
956 #define TSARKIMEXARS122 "ars122"
957 #define TSARKIMEX2C     "2c"
958 #define TSARKIMEX2D     "2d"
959 #define TSARKIMEX2E     "2e"
960 #define TSARKIMEXPRSSP2 "prssp2"
961 #define TSARKIMEX3      "3"
962 #define TSARKIMEXBPR3   "bpr3"
963 #define TSARKIMEXARS443 "ars443"
964 #define TSARKIMEX4      "4"
965 #define TSARKIMEX5      "5"
966 PETSC_EXTERN PetscErrorCode TSARKIMEXGetType(TS ts, TSARKIMEXType *);
967 PETSC_EXTERN PetscErrorCode TSARKIMEXSetType(TS ts, TSARKIMEXType);
968 PETSC_EXTERN PetscErrorCode TSARKIMEXSetFullyImplicit(TS, PetscBool);
969 PETSC_EXTERN PetscErrorCode TSARKIMEXGetFullyImplicit(TS, PetscBool *);
970 PETSC_EXTERN PetscErrorCode TSARKIMEXRegister(TSARKIMEXType, PetscInt, PetscInt, const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], PetscInt, const PetscReal[], const PetscReal[]);
971 PETSC_EXTERN PetscErrorCode TSARKIMEXInitializePackage(void);
972 PETSC_EXTERN PetscErrorCode TSARKIMEXFinalizePackage(void);
973 PETSC_EXTERN PetscErrorCode TSARKIMEXRegisterDestroy(void);
974 
975 /*J
976     TSRosWType - String with the name of a Rosenbrock-W method.
977 
978    Level: beginner
979 
980 .seealso: `TSRosWSetType()`, `TS`, `TSROSW`, `TSRosWRegister()`
981 J*/
982 typedef const char *TSRosWType;
983 #define TSROSW2M          "2m"
984 #define TSROSW2P          "2p"
985 #define TSROSWRA3PW       "ra3pw"
986 #define TSROSWRA34PW2     "ra34pw2"
987 #define TSROSWRODAS3      "rodas3"
988 #define TSROSWSANDU3      "sandu3"
989 #define TSROSWASSP3P3S1C  "assp3p3s1c"
990 #define TSROSWLASSP3P4S2C "lassp3p4s2c"
991 #define TSROSWLLSSP3P4S2C "llssp3p4s2c"
992 #define TSROSWARK3        "ark3"
993 #define TSROSWTHETA1      "theta1"
994 #define TSROSWTHETA2      "theta2"
995 #define TSROSWGRK4T       "grk4t"
996 #define TSROSWSHAMP4      "shamp4"
997 #define TSROSWVELDD4      "veldd4"
998 #define TSROSW4L          "4l"
999 
1000 PETSC_EXTERN PetscErrorCode TSRosWGetType(TS, TSRosWType *);
1001 PETSC_EXTERN PetscErrorCode TSRosWSetType(TS, TSRosWType);
1002 PETSC_EXTERN PetscErrorCode TSRosWSetRecomputeJacobian(TS, PetscBool);
1003 PETSC_EXTERN PetscErrorCode TSRosWRegister(TSRosWType, PetscInt, PetscInt, const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], PetscInt, const PetscReal[]);
1004 PETSC_EXTERN PetscErrorCode TSRosWRegisterRos4(TSRosWType, PetscReal, PetscReal, PetscReal, PetscReal, PetscReal);
1005 PETSC_EXTERN PetscErrorCode TSRosWInitializePackage(void);
1006 PETSC_EXTERN PetscErrorCode TSRosWFinalizePackage(void);
1007 PETSC_EXTERN PetscErrorCode TSRosWRegisterDestroy(void);
1008 
1009 PETSC_EXTERN PetscErrorCode TSBDFSetOrder(TS, PetscInt);
1010 PETSC_EXTERN PetscErrorCode TSBDFGetOrder(TS, PetscInt *);
1011 
1012 /*J
1013   TSBasicSymplecticType - String with the name of a basic symplectic integration method.
1014 
1015   Level: beginner
1016 
1017   .seealso: `TSBasicSymplecticSetType()`, `TS`, `TSBASICSYMPLECTIC`, `TSBasicSymplecticRegister()`
1018 J*/
1019 typedef const char *TSBasicSymplecticType;
1020 #define TSBASICSYMPLECTICSIEULER   "1"
1021 #define TSBASICSYMPLECTICVELVERLET "2"
1022 #define TSBASICSYMPLECTIC3         "3"
1023 #define TSBASICSYMPLECTIC4         "4"
1024 PETSC_EXTERN PetscErrorCode TSBasicSymplecticSetType(TS, TSBasicSymplecticType);
1025 PETSC_EXTERN PetscErrorCode TSBasicSymplecticGetType(TS, TSBasicSymplecticType *);
1026 PETSC_EXTERN PetscErrorCode TSBasicSymplecticRegister(TSBasicSymplecticType, PetscInt, PetscInt, PetscReal[], PetscReal[]);
1027 PETSC_EXTERN PetscErrorCode TSBasicSymplecticInitializePackage(void);
1028 PETSC_EXTERN PetscErrorCode TSBasicSymplecticFinalizePackage(void);
1029 PETSC_EXTERN PetscErrorCode TSBasicSymplecticRegisterDestroy(void);
1030 
1031 /*J
1032   TSDiscreteGradient - The Discrete Gradient integrator is a timestepper for Hamiltonian systems designed to conserve the first integral (energy),
1033   but also has the property for some systems of monotonicity in a functional.
1034 
1035   Level: beginner
1036 
1037   .seealso: `TS`, `TSDISCGRAD`, `TSDiscGradSetFormulation()`, `TSDiscGradGetFormulation`
1038 J*/
1039 PETSC_EXTERN PetscErrorCode TSDiscGradSetFormulation(TS, PetscErrorCode (*)(TS, PetscReal, Vec, Mat, void *), PetscErrorCode (*)(TS, PetscReal, Vec, PetscScalar *, void *), PetscErrorCode (*)(TS, PetscReal, Vec, Vec, void *), void *);
1040 PETSC_EXTERN PetscErrorCode TSDiscGradIsGonzalez(TS, PetscBool *);
1041 PETSC_EXTERN PetscErrorCode TSDiscGradUseGonzalez(TS, PetscBool);
1042 
1043 /*
1044        PETSc interface to Sundials
1045 */
1046 #ifdef PETSC_HAVE_SUNDIALS2
1047 typedef enum {
1048   SUNDIALS_ADAMS = 1,
1049   SUNDIALS_BDF   = 2
1050 } TSSundialsLmmType;
1051 PETSC_EXTERN const char *const TSSundialsLmmTypes[];
1052 typedef enum {
1053   SUNDIALS_MODIFIED_GS  = 1,
1054   SUNDIALS_CLASSICAL_GS = 2
1055 } TSSundialsGramSchmidtType;
1056 PETSC_EXTERN const char *const TSSundialsGramSchmidtTypes[];
1057 PETSC_EXTERN PetscErrorCode    TSSundialsSetType(TS, TSSundialsLmmType);
1058 PETSC_EXTERN PetscErrorCode    TSSundialsGetPC(TS, PC *);
1059 PETSC_EXTERN PetscErrorCode    TSSundialsSetTolerance(TS, PetscReal, PetscReal);
1060 PETSC_EXTERN PetscErrorCode    TSSundialsSetMinTimeStep(TS, PetscReal);
1061 PETSC_EXTERN PetscErrorCode    TSSundialsSetMaxTimeStep(TS, PetscReal);
1062 PETSC_EXTERN PetscErrorCode    TSSundialsGetIterations(TS, PetscInt *, PetscInt *);
1063 PETSC_EXTERN PetscErrorCode    TSSundialsSetGramSchmidtType(TS, TSSundialsGramSchmidtType);
1064 PETSC_EXTERN PetscErrorCode    TSSundialsSetGMRESRestart(TS, PetscInt);
1065 PETSC_EXTERN PetscErrorCode    TSSundialsSetLinearTolerance(TS, PetscReal);
1066 PETSC_EXTERN PetscErrorCode    TSSundialsMonitorInternalSteps(TS, PetscBool);
1067 PETSC_EXTERN PetscErrorCode    TSSundialsGetParameters(TS, PetscInt *, long *[], double *[]);
1068 PETSC_EXTERN PetscErrorCode    TSSundialsSetMaxl(TS, PetscInt);
1069 PETSC_EXTERN PetscErrorCode    TSSundialsSetMaxord(TS, PetscInt);
1070 PETSC_EXTERN PetscErrorCode    TSSundialsSetUseDense(TS, PetscBool);
1071 #endif
1072 
1073 PETSC_EXTERN PetscErrorCode TSThetaSetTheta(TS, PetscReal);
1074 PETSC_EXTERN PetscErrorCode TSThetaGetTheta(TS, PetscReal *);
1075 PETSC_EXTERN PetscErrorCode TSThetaGetEndpoint(TS, PetscBool *);
1076 PETSC_EXTERN PetscErrorCode TSThetaSetEndpoint(TS, PetscBool);
1077 
1078 PETSC_EXTERN PetscErrorCode TSAlphaSetRadius(TS, PetscReal);
1079 PETSC_EXTERN PetscErrorCode TSAlphaSetParams(TS, PetscReal, PetscReal, PetscReal);
1080 PETSC_EXTERN PetscErrorCode TSAlphaGetParams(TS, PetscReal *, PetscReal *, PetscReal *);
1081 
1082 PETSC_EXTERN PetscErrorCode TSAlpha2SetRadius(TS, PetscReal);
1083 PETSC_EXTERN PetscErrorCode TSAlpha2SetParams(TS, PetscReal, PetscReal, PetscReal, PetscReal);
1084 PETSC_EXTERN PetscErrorCode TSAlpha2GetParams(TS, PetscReal *, PetscReal *, PetscReal *, PetscReal *);
1085 
1086 PETSC_EXTERN PetscErrorCode TSSetDM(TS, DM);
1087 PETSC_EXTERN PetscErrorCode TSGetDM(TS, DM *);
1088 
1089 PETSC_EXTERN PetscErrorCode SNESTSFormFunction(SNES, Vec, Vec, void *);
1090 PETSC_EXTERN PetscErrorCode SNESTSFormJacobian(SNES, Vec, Mat, Mat, void *);
1091 
1092 PETSC_EXTERN PetscErrorCode TSRHSJacobianTest(TS, PetscBool *);
1093 PETSC_EXTERN PetscErrorCode TSRHSJacobianTestTranspose(TS, PetscBool *);
1094 
1095 PETSC_EXTERN PetscErrorCode TSGetComputeInitialCondition(TS, PetscErrorCode (**)(TS, Vec));
1096 PETSC_EXTERN PetscErrorCode TSSetComputeInitialCondition(TS, PetscErrorCode (*)(TS, Vec));
1097 PETSC_EXTERN PetscErrorCode TSComputeInitialCondition(TS, Vec);
1098 PETSC_EXTERN PetscErrorCode TSGetComputeExactError(TS, PetscErrorCode (**)(TS, Vec, Vec));
1099 PETSC_EXTERN PetscErrorCode TSSetComputeExactError(TS, PetscErrorCode (*)(TS, Vec, Vec));
1100 PETSC_EXTERN PetscErrorCode TSComputeExactError(TS, Vec, Vec);
1101 PETSC_EXTERN PetscErrorCode PetscConvEstUseTS(PetscConvEst, PetscBool);
1102 
1103 PETSC_EXTERN PetscErrorCode TSSetMatStructure(TS, MatStructure);
1104 #endif
1105