xref: /petsc/include/petscts.h (revision cc7980154d91e4d53ff48c8dc1d2bc5deb304502)
1 /*
2    User interface for the timestepping package. This package
3    is for use in solving time-dependent PDEs.
4 */
5 #pragma once
6 
7 #include <petscsnes.h>
8 #include <petscconvest.h>
9 
10 /*I <petscts.h> I*/
11 
12 /* SUBMANSEC = TS */
13 
14 /*S
15    TS - Abstract PETSc object that manages all time-steppers (ODE integrators)
16 
17    Level: beginner
18 
19 .seealso: [](integrator_table), [](ch_ts), `TSCreate()`, `TSSetType()`, `TSType`, `SNES`, `KSP`, `PC`, `TSDestroy()`
20 S*/
21 typedef struct _p_TS *TS;
22 
23 /*J
24    TSType - String with the name of a PETSc `TS` method.
25 
26    Level: beginner
27 
28 .seealso: [](integrator_table), [](ch_ts), `TSSetType()`, `TS`, `TSRegister()`
29 J*/
30 typedef const char *TSType;
31 #define TSEULER           "euler"
32 #define TSBEULER          "beuler"
33 #define TSBASICSYMPLECTIC "basicsymplectic"
34 #define TSPSEUDO          "pseudo"
35 #define TSCN              "cn"
36 #define TSSUNDIALS        "sundials"
37 #define TSRK              "rk"
38 #define TSPYTHON          "python"
39 #define TSTHETA           "theta"
40 #define TSALPHA           "alpha"
41 #define TSALPHA2          "alpha2"
42 #define TSGLLE            "glle"
43 #define TSGLEE            "glee"
44 #define TSSSP             "ssp"
45 #define TSARKIMEX         "arkimex"
46 #define TSROSW            "rosw"
47 #define TSEIMEX           "eimex"
48 #define TSMIMEX           "mimex"
49 #define TSBDF             "bdf"
50 #define TSRADAU5          "radau5"
51 #define TSMPRK            "mprk"
52 #define TSDISCGRAD        "discgrad"
53 #define TSIRK             "irk"
54 #define TSDIRK            "dirk"
55 
56 /*E
57    TSProblemType - Determines the type of problem this `TS` object is to be used to solve
58 
59    Values:
60  + `TS_LINEAR`    - a linear ODE or DAE
61  - `TS_NONLINEAR` - a nonlinear ODE or DAE
62 
63    Level: beginner
64 
65 .seealso: [](ch_ts), `TS`, `TSCreate()`
66 E*/
67 typedef enum {
68   TS_LINEAR,
69   TS_NONLINEAR
70 } TSProblemType;
71 
72 /*E
73    TSEquationType - type of `TS` problem that is solved
74 
75    Values:
76 +  `TS_EQ_UNSPECIFIED` - (default)
77 .  `TS_EQ_EXPLICIT`    - {ODE and DAE index 1, 2, 3, HI} F(t,U,U_t) := M(t) U_t - G(U,t) = 0
78 -  `TS_EQ_IMPLICIT`    - {ODE and DAE index 1, 2, 3, HI} F(t,U,U_t) = 0
79 
80    Level: beginner
81 
82 .seealso: [](ch_ts), `TS`, `TSGetEquationType()`, `TSSetEquationType()`
83 E*/
84 typedef enum {
85   TS_EQ_UNSPECIFIED               = -1,
86   TS_EQ_EXPLICIT                  = 0,
87   TS_EQ_ODE_EXPLICIT              = 1,
88   TS_EQ_DAE_SEMI_EXPLICIT_INDEX1  = 100,
89   TS_EQ_DAE_SEMI_EXPLICIT_INDEX2  = 200,
90   TS_EQ_DAE_SEMI_EXPLICIT_INDEX3  = 300,
91   TS_EQ_DAE_SEMI_EXPLICIT_INDEXHI = 500,
92   TS_EQ_IMPLICIT                  = 1000,
93   TS_EQ_ODE_IMPLICIT              = 1001,
94   TS_EQ_DAE_IMPLICIT_INDEX1       = 1100,
95   TS_EQ_DAE_IMPLICIT_INDEX2       = 1200,
96   TS_EQ_DAE_IMPLICIT_INDEX3       = 1300,
97   TS_EQ_DAE_IMPLICIT_INDEXHI      = 1500
98 } TSEquationType;
99 PETSC_EXTERN const char *const *TSEquationTypes;
100 
101 /*E
102    TSConvergedReason - reason a `TS` method has converged (integrated to the requested time) or not
103 
104    Values:
105 +  `TS_CONVERGED_ITERATING`          - this only occurs if `TSGetConvergedReason()` is called during the `TSSolve()`
106 .  `TS_CONVERGED_TIME`               - the final time was reached
107 .  `TS_CONVERGED_ITS`                - the maximum number of iterations (time-steps) was reached prior to the final time
108 .  `TS_CONVERGED_USER`               - user requested termination
109 .  `TS_CONVERGED_EVENT`              - user requested termination on event detection
110 .  `TS_CONVERGED_PSEUDO_FATOL`       - stops when function norm decreased by a set amount, used only for `TSPSEUDO`
111 .  `TS_CONVERGED_PSEUDO_FRTOL`       - stops when function norm decreases below a set amount, used only for `TSPSEUDO`
112 .  `TS_DIVERGED_NONLINEAR_SOLVE`     - too many nonlinear solve failures have occurred
113 .  `TS_DIVERGED_STEP_REJECTED`       - too many steps were rejected
114 .  `TSFORWARD_DIVERGED_LINEAR_SOLVE` - tangent linear solve failed
115 -  `TSADJOINT_DIVERGED_LINEAR_SOLVE` - transposed linear solve failed
116 
117    Level: beginner
118 
119 .seealso: [](ch_ts), `TS`, `TSGetConvergedReason()`
120 E*/
121 typedef enum {
122   TS_CONVERGED_ITERATING          = 0,
123   TS_CONVERGED_TIME               = 1,
124   TS_CONVERGED_ITS                = 2,
125   TS_CONVERGED_USER               = 3,
126   TS_CONVERGED_EVENT              = 4,
127   TS_CONVERGED_PSEUDO_FATOL       = 5,
128   TS_CONVERGED_PSEUDO_FRTOL       = 6,
129   TS_DIVERGED_NONLINEAR_SOLVE     = -1,
130   TS_DIVERGED_STEP_REJECTED       = -2,
131   TSFORWARD_DIVERGED_LINEAR_SOLVE = -3,
132   TSADJOINT_DIVERGED_LINEAR_SOLVE = -4
133 } TSConvergedReason;
134 PETSC_EXTERN const char *const *TSConvergedReasons;
135 
136 /*MC
137    TS_CONVERGED_ITERATING - this only occurs if `TSGetConvergedReason()` is called during the `TSSolve()`
138 
139    Level: beginner
140 
141 .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSGetAdapt()`
142 M*/
143 
144 /*MC
145    TS_CONVERGED_TIME - the final time was reached
146 
147    Level: beginner
148 
149 .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSGetAdapt()`, `TSSetMaxTime()`, `TSGetMaxTime()`, `TSGetSolveTime()`
150 M*/
151 
152 /*MC
153    TS_CONVERGED_ITS - the maximum number of iterations (time-steps) was reached prior to the final time
154 
155    Level: beginner
156 
157 .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSGetAdapt()`, `TSSetMaxSteps()`, `TSGetMaxSteps()`
158 M*/
159 
160 /*MC
161    TS_CONVERGED_USER - user requested termination
162 
163    Level: beginner
164 
165 .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSSetConvergedReason()`
166 M*/
167 
168 /*MC
169    TS_CONVERGED_EVENT - user requested termination on event detection
170 
171    Level: beginner
172 
173 .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSSetConvergedReason()`
174 M*/
175 
176 /*MC
177    TS_CONVERGED_PSEUDO_FRTOL - stops when function norm decreased by a set amount, used only for `TSPSEUDO`
178 
179    Options Database Key:
180 .   -ts_pseudo_frtol <rtol> - use specified rtol
181 
182    Level: beginner
183 
184 .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSSetConvergedReason()`, `TS_CONVERGED_PSEUDO_FATOL`
185 M*/
186 
187 /*MC
188    TS_CONVERGED_PSEUDO_FATOL - stops when function norm decreases below a set amount, used only for `TSPSEUDO`
189 
190    Options Database Key:
191 .   -ts_pseudo_fatol <atol> - use specified atol
192 
193    Level: beginner
194 
195 .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSSetConvergedReason()`, `TS_CONVERGED_PSEUDO_FRTOL`
196 M*/
197 
198 /*MC
199    TS_DIVERGED_NONLINEAR_SOLVE - too many nonlinear solves failed
200 
201    Level: beginner
202 
203    Note:
204    See `TSSetMaxSNESFailures()` for how to allow more nonlinear solver failures.
205 
206 .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSGetAdapt()`, `TSGetSNES()`, `SNESGetConvergedReason()`, `TSSetMaxSNESFailures()`
207 M*/
208 
209 /*MC
210    TS_DIVERGED_STEP_REJECTED - too many steps were rejected
211 
212    Level: beginner
213 
214    Notes:
215    See `TSSetMaxStepRejections()` for how to allow more step rejections.
216 
217 .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSGetAdapt()`, `TSSetMaxStepRejections()`
218 M*/
219 
220 /*E
221    TSExactFinalTimeOption - option for handling of final time step
222 
223    Values:
224 +  `TS_EXACTFINALTIME_STEPOVER`    - Don't do anything if requested final time is exceeded
225 .  `TS_EXACTFINALTIME_INTERPOLATE` - Interpolate back to final time
226 -  `TS_EXACTFINALTIME_MATCHSTEP`   - Adapt final time step to match the final time requested
227 
228    Level: beginner
229 
230 .seealso: [](ch_ts), `TS`, `TSGetConvergedReason()`, `TSSetExactFinalTime()`, `TSGetExactFinalTime()`
231 E*/
232 typedef enum {
233   TS_EXACTFINALTIME_UNSPECIFIED = 0,
234   TS_EXACTFINALTIME_STEPOVER    = 1,
235   TS_EXACTFINALTIME_INTERPOLATE = 2,
236   TS_EXACTFINALTIME_MATCHSTEP   = 3
237 } TSExactFinalTimeOption;
238 PETSC_EXTERN const char *const TSExactFinalTimeOptions[];
239 
240 /* Logging support */
241 PETSC_EXTERN PetscClassId TS_CLASSID;
242 PETSC_EXTERN PetscClassId DMTS_CLASSID;
243 PETSC_EXTERN PetscClassId TSADAPT_CLASSID;
244 
245 PETSC_EXTERN PetscErrorCode TSInitializePackage(void);
246 PETSC_EXTERN PetscErrorCode TSFinalizePackage(void);
247 
248 PETSC_EXTERN PetscErrorCode TSCreate(MPI_Comm, TS *);
249 PETSC_EXTERN PetscErrorCode TSClone(TS, TS *);
250 PETSC_EXTERN PetscErrorCode TSDestroy(TS *);
251 
252 PETSC_EXTERN PetscErrorCode TSSetProblemType(TS, TSProblemType);
253 PETSC_EXTERN PetscErrorCode TSGetProblemType(TS, TSProblemType *);
254 PETSC_EXTERN PetscErrorCode TSMonitor(TS, PetscInt, PetscReal, Vec);
255 PETSC_EXTERN PetscErrorCode TSMonitorSet(TS, PetscErrorCode (*)(TS, PetscInt, PetscReal, Vec, void *), void *, PetscErrorCode (*)(void **));
256 PETSC_EXTERN PetscErrorCode TSMonitorSetFromOptions(TS, const char[], const char[], const char[], PetscErrorCode (*)(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *), PetscErrorCode (*)(TS, PetscViewerAndFormat *));
257 PETSC_EXTERN PetscErrorCode TSMonitorCancel(TS);
258 
259 PETSC_EXTERN PetscErrorCode TSSetOptionsPrefix(TS, const char[]);
260 PETSC_EXTERN PetscErrorCode TSAppendOptionsPrefix(TS, const char[]);
261 PETSC_EXTERN PetscErrorCode TSGetOptionsPrefix(TS, const char *[]);
262 PETSC_EXTERN PetscErrorCode TSSetFromOptions(TS);
263 PETSC_EXTERN PetscErrorCode TSSetUp(TS);
264 PETSC_EXTERN PetscErrorCode TSReset(TS);
265 
266 PETSC_EXTERN PetscErrorCode TSSetSolution(TS, Vec);
267 PETSC_EXTERN PetscErrorCode TSGetSolution(TS, Vec *);
268 
269 PETSC_EXTERN PetscErrorCode TS2SetSolution(TS, Vec, Vec);
270 PETSC_EXTERN PetscErrorCode TS2GetSolution(TS, Vec *, Vec *);
271 
272 PETSC_EXTERN PetscErrorCode TSGetSolutionComponents(TS, PetscInt *, Vec *);
273 PETSC_EXTERN PetscErrorCode TSGetAuxSolution(TS, Vec *);
274 PETSC_EXTERN PetscErrorCode TSGetTimeError(TS, PetscInt, Vec *);
275 PETSC_EXTERN PetscErrorCode TSSetTimeError(TS, Vec);
276 
277 PETSC_EXTERN PetscErrorCode TSSetRHSJacobianP(TS, Mat, PetscErrorCode (*)(TS, PetscReal, Vec, Mat, void *), void *);
278 PETSC_EXTERN PetscErrorCode TSGetRHSJacobianP(TS, Mat *, PetscErrorCode (**)(TS, PetscReal, Vec, Mat, void *), void **);
279 PETSC_EXTERN PetscErrorCode TSComputeRHSJacobianP(TS, PetscReal, Vec, Mat);
280 PETSC_EXTERN PetscErrorCode TSSetIJacobianP(TS, Mat, PetscErrorCode (*)(TS, PetscReal, Vec, Vec, PetscReal, Mat, void *), void *);
281 PETSC_EXTERN PetscErrorCode TSComputeIJacobianP(TS, PetscReal, Vec, Vec, PetscReal, Mat, PetscBool);
282 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 5, 0, "TSGetQuadratureTS() then TSComputeRHSJacobianP()", ) PetscErrorCode TSComputeDRDPFunction(TS, PetscReal, Vec, Vec *);
283 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 5, 0, "TSGetQuadratureTS() then TSComputeRHSJacobian()", ) PetscErrorCode TSComputeDRDUFunction(TS, PetscReal, Vec, Vec *);
284 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 *);
285 PETSC_EXTERN PetscErrorCode TSComputeIHessianProductFunctionUU(TS, PetscReal, Vec, Vec *, Vec, Vec *);
286 PETSC_EXTERN PetscErrorCode TSComputeIHessianProductFunctionUP(TS, PetscReal, Vec, Vec *, Vec, Vec *);
287 PETSC_EXTERN PetscErrorCode TSComputeIHessianProductFunctionPU(TS, PetscReal, Vec, Vec *, Vec, Vec *);
288 PETSC_EXTERN PetscErrorCode TSComputeIHessianProductFunctionPP(TS, PetscReal, Vec, Vec *, Vec, Vec *);
289 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 *);
290 PETSC_EXTERN PetscErrorCode TSComputeRHSHessianProductFunctionUU(TS, PetscReal, Vec, Vec *, Vec, Vec *);
291 PETSC_EXTERN PetscErrorCode TSComputeRHSHessianProductFunctionUP(TS, PetscReal, Vec, Vec *, Vec, Vec *);
292 PETSC_EXTERN PetscErrorCode TSComputeRHSHessianProductFunctionPU(TS, PetscReal, Vec, Vec *, Vec, Vec *);
293 PETSC_EXTERN PetscErrorCode TSComputeRHSHessianProductFunctionPP(TS, PetscReal, Vec, Vec *, Vec, Vec *);
294 PETSC_EXTERN PetscErrorCode TSSetCostHessianProducts(TS, PetscInt, Vec *, Vec *, Vec);
295 PETSC_EXTERN PetscErrorCode TSGetCostHessianProducts(TS, PetscInt *, Vec **, Vec **, Vec *);
296 PETSC_EXTERN PetscErrorCode TSComputeSNESJacobian(TS, Vec, Mat, Mat);
297 
298 /*S
299    TSTrajectory - Abstract PETSc object that stores the trajectory (solution of ODE/DAE at each time step)
300 
301    Level: advanced
302 
303 .seealso: [](ch_ts), `TS`, `TSSetSaveTrajectory()`, `TSTrajectoryCreate()`, `TSTrajectorySetType()`, `TSTrajectoryDestroy()`, `TSTrajectoryReset()`
304 S*/
305 typedef struct _p_TSTrajectory *TSTrajectory;
306 
307 /*J
308    TSTrajectoryType - String with the name of a PETSc `TS` trajectory storage method
309 
310    Level: intermediate
311 
312 .seealso: [](ch_ts), `TS`, `TSSetSaveTrajectory()`, `TSTrajectoryCreate()`, `TSTrajectoryDestroy()`
313 J*/
314 typedef const char *TSTrajectoryType;
315 #define TSTRAJECTORYBASIC         "basic"
316 #define TSTRAJECTORYSINGLEFILE    "singlefile"
317 #define TSTRAJECTORYMEMORY        "memory"
318 #define TSTRAJECTORYVISUALIZATION "visualization"
319 
320 PETSC_EXTERN PetscFunctionList TSTrajectoryList;
321 PETSC_EXTERN PetscClassId      TSTRAJECTORY_CLASSID;
322 PETSC_EXTERN PetscBool         TSTrajectoryRegisterAllCalled;
323 
324 PETSC_EXTERN PetscErrorCode TSSetSaveTrajectory(TS);
325 PETSC_EXTERN PetscErrorCode TSResetTrajectory(TS);
326 PETSC_EXTERN PetscErrorCode TSRemoveTrajectory(TS);
327 
328 PETSC_EXTERN PetscErrorCode TSTrajectoryCreate(MPI_Comm, TSTrajectory *);
329 PETSC_EXTERN PetscErrorCode TSTrajectoryReset(TSTrajectory);
330 PETSC_EXTERN PetscErrorCode TSTrajectoryDestroy(TSTrajectory *);
331 PETSC_EXTERN PetscErrorCode TSTrajectoryView(TSTrajectory, PetscViewer);
332 PETSC_EXTERN PetscErrorCode TSTrajectorySetType(TSTrajectory, TS, TSTrajectoryType);
333 PETSC_EXTERN PetscErrorCode TSTrajectoryGetType(TSTrajectory, TS, TSTrajectoryType *);
334 PETSC_EXTERN PetscErrorCode TSTrajectorySet(TSTrajectory, TS, PetscInt, PetscReal, Vec);
335 PETSC_EXTERN PetscErrorCode TSTrajectoryGet(TSTrajectory, TS, PetscInt, PetscReal *);
336 PETSC_EXTERN PetscErrorCode TSTrajectoryGetVecs(TSTrajectory, TS, PetscInt, PetscReal *, Vec, Vec);
337 PETSC_EXTERN PetscErrorCode TSTrajectoryGetUpdatedHistoryVecs(TSTrajectory, TS, PetscReal, Vec *, Vec *);
338 PETSC_EXTERN PetscErrorCode TSTrajectoryGetNumSteps(TSTrajectory, PetscInt *);
339 PETSC_EXTERN PetscErrorCode TSTrajectoryRestoreUpdatedHistoryVecs(TSTrajectory, Vec *, Vec *);
340 PETSC_EXTERN PetscErrorCode TSTrajectorySetFromOptions(TSTrajectory, TS);
341 PETSC_EXTERN PetscErrorCode TSTrajectoryRegister(const char[], PetscErrorCode (*)(TSTrajectory, TS));
342 PETSC_EXTERN PetscErrorCode TSTrajectoryRegisterAll(void);
343 PETSC_EXTERN PetscErrorCode TSTrajectorySetUp(TSTrajectory, TS);
344 PETSC_EXTERN PetscErrorCode TSTrajectorySetUseHistory(TSTrajectory, PetscBool);
345 PETSC_EXTERN PetscErrorCode TSTrajectorySetMonitor(TSTrajectory, PetscBool);
346 PETSC_EXTERN PetscErrorCode TSTrajectorySetVariableNames(TSTrajectory, const char *const *);
347 PETSC_EXTERN PetscErrorCode TSTrajectorySetTransform(TSTrajectory, PetscErrorCode (*)(void *, Vec, Vec *), PetscErrorCode (*)(void *), void *);
348 PETSC_EXTERN PetscErrorCode TSTrajectorySetSolutionOnly(TSTrajectory, PetscBool);
349 PETSC_EXTERN PetscErrorCode TSTrajectoryGetSolutionOnly(TSTrajectory, PetscBool *);
350 PETSC_EXTERN PetscErrorCode TSTrajectorySetKeepFiles(TSTrajectory, PetscBool);
351 PETSC_EXTERN PetscErrorCode TSTrajectorySetDirname(TSTrajectory, const char[]);
352 PETSC_EXTERN PetscErrorCode TSTrajectorySetFiletemplate(TSTrajectory, const char[]);
353 PETSC_EXTERN PetscErrorCode TSGetTrajectory(TS, TSTrajectory *);
354 
355 typedef enum {
356   TJ_REVOLVE,
357   TJ_CAMS,
358   TJ_PETSC
359 } TSTrajectoryMemoryType;
360 PETSC_EXTERN const char *const TSTrajectoryMemoryTypes[];
361 
362 PETSC_EXTERN PetscErrorCode TSTrajectoryMemorySetType(TSTrajectory, TSTrajectoryMemoryType);
363 PETSC_EXTERN PetscErrorCode TSTrajectorySetMaxCpsRAM(TSTrajectory, PetscInt);
364 PETSC_EXTERN PetscErrorCode TSTrajectorySetMaxCpsDisk(TSTrajectory, PetscInt);
365 PETSC_EXTERN PetscErrorCode TSTrajectorySetMaxUnitsRAM(TSTrajectory, PetscInt);
366 PETSC_EXTERN PetscErrorCode TSTrajectorySetMaxUnitsDisk(TSTrajectory, PetscInt);
367 
368 PETSC_EXTERN PetscErrorCode TSSetCostGradients(TS, PetscInt, Vec *, Vec *);
369 PETSC_EXTERN PetscErrorCode TSGetCostGradients(TS, PetscInt *, Vec **, Vec **);
370 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 12, 0, "TSCreateQuadratureTS() and TSForwardSetSensitivities()", ) 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 *);
371 PETSC_EXTERN PetscErrorCode TSGetCostIntegral(TS, Vec *);
372 PETSC_EXTERN PetscErrorCode TSComputeCostIntegrand(TS, PetscReal, Vec, Vec);
373 PETSC_EXTERN PetscErrorCode TSCreateQuadratureTS(TS, PetscBool, TS *);
374 PETSC_EXTERN PetscErrorCode TSGetQuadratureTS(TS, PetscBool *, TS *);
375 
376 PETSC_EXTERN PetscErrorCode TSAdjointSetFromOptions(TS, PetscOptionItems *);
377 PETSC_EXTERN PetscErrorCode TSAdjointMonitor(TS, PetscInt, PetscReal, Vec, PetscInt, Vec *, Vec *);
378 PETSC_EXTERN PetscErrorCode TSAdjointMonitorSet(TS, PetscErrorCode (*)(TS, PetscInt, PetscReal, Vec, PetscInt, Vec *, Vec *, void *), void *, PetscErrorCode (*)(void **));
379 PETSC_EXTERN PetscErrorCode TSAdjointMonitorCancel(TS);
380 PETSC_EXTERN PetscErrorCode TSAdjointMonitorSetFromOptions(TS, const char[], const char[], const char[], PetscErrorCode (*)(TS, PetscInt, PetscReal, Vec, PetscInt, Vec *, Vec *, PetscViewerAndFormat *), PetscErrorCode (*)(TS, PetscViewerAndFormat *));
381 
382 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 5, 0, "TSSetRHSJacobianP()", ) PetscErrorCode TSAdjointSetRHSJacobian(TS, Mat, PetscErrorCode (*)(TS, PetscReal, Vec, Mat, void *), void *);
383 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 5, 0, "TSComputeRHSJacobianP()", ) PetscErrorCode TSAdjointComputeRHSJacobian(TS, PetscReal, Vec, Mat);
384 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 5, 0, "TSGetQuadratureTS()", ) PetscErrorCode TSAdjointComputeDRDPFunction(TS, PetscReal, Vec, Vec *);
385 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 5, 0, "TSGetQuadratureTS()", ) PetscErrorCode TSAdjointComputeDRDYFunction(TS, PetscReal, Vec, Vec *);
386 PETSC_EXTERN PetscErrorCode TSAdjointSolve(TS);
387 PETSC_EXTERN PetscErrorCode TSAdjointSetSteps(TS, PetscInt);
388 
389 PETSC_EXTERN PetscErrorCode TSAdjointStep(TS);
390 PETSC_EXTERN PetscErrorCode TSAdjointSetUp(TS);
391 PETSC_EXTERN PetscErrorCode TSAdjointReset(TS);
392 PETSC_EXTERN PetscErrorCode TSAdjointCostIntegral(TS);
393 PETSC_EXTERN PetscErrorCode TSAdjointSetForward(TS, Mat);
394 PETSC_EXTERN PetscErrorCode TSAdjointResetForward(TS);
395 
396 PETSC_EXTERN PetscErrorCode TSForwardSetSensitivities(TS, PetscInt, Mat);
397 PETSC_EXTERN PetscErrorCode TSForwardGetSensitivities(TS, PetscInt *, Mat *);
398 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 12, 0, "TSCreateQuadratureTS()", ) PetscErrorCode TSForwardSetIntegralGradients(TS, PetscInt, Vec *);
399 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 12, 0, "TSForwardGetSensitivities()", ) PetscErrorCode TSForwardGetIntegralGradients(TS, PetscInt *, Vec **);
400 PETSC_EXTERN PetscErrorCode TSForwardSetUp(TS);
401 PETSC_EXTERN PetscErrorCode TSForwardReset(TS);
402 PETSC_EXTERN PetscErrorCode TSForwardCostIntegral(TS);
403 PETSC_EXTERN PetscErrorCode TSForwardStep(TS);
404 PETSC_EXTERN PetscErrorCode TSForwardSetInitialSensitivities(TS, Mat);
405 PETSC_EXTERN PetscErrorCode TSForwardGetStages(TS, PetscInt *, Mat *[]);
406 
407 PETSC_EXTERN PetscErrorCode TSSetMaxSteps(TS, PetscInt);
408 PETSC_EXTERN PetscErrorCode TSGetMaxSteps(TS, PetscInt *);
409 PETSC_EXTERN PetscErrorCode TSSetMaxTime(TS, PetscReal);
410 PETSC_EXTERN PetscErrorCode TSGetMaxTime(TS, PetscReal *);
411 PETSC_EXTERN PetscErrorCode TSSetExactFinalTime(TS, TSExactFinalTimeOption);
412 PETSC_EXTERN PetscErrorCode TSGetExactFinalTime(TS, TSExactFinalTimeOption *);
413 PETSC_EXTERN PetscErrorCode TSSetTimeSpan(TS, PetscInt, PetscReal *);
414 PETSC_EXTERN PetscErrorCode TSGetTimeSpan(TS, PetscInt *, const PetscReal **);
415 PETSC_EXTERN PetscErrorCode TSGetTimeSpanSolutions(TS, PetscInt *, Vec **);
416 
417 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 8, 0, "TSSetTime()", ) PetscErrorCode TSSetInitialTimeStep(TS, PetscReal, PetscReal);
418 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 8, 0, "TSSetMax()", ) PetscErrorCode TSSetDuration(TS, PetscInt, PetscReal);
419 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 8, 0, "TSGetMax()", ) PetscErrorCode TSGetDuration(TS, PetscInt *, PetscReal *);
420 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 8, 0, "TSGetStepNumber()", ) PetscErrorCode TSGetTimeStepNumber(TS, PetscInt *);
421 PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 8, 0, "TSGetStepNumber()", ) PetscErrorCode TSGetTotalSteps(TS, PetscInt *);
422 
423 PETSC_EXTERN PetscErrorCode TSMonitorDefault(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *);
424 PETSC_EXTERN PetscErrorCode TSMonitorExtreme(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *);
425 
426 typedef struct _n_TSMonitorDrawCtx *TSMonitorDrawCtx;
427 PETSC_EXTERN PetscErrorCode         TSMonitorDrawCtxCreate(MPI_Comm, const char[], const char[], int, int, int, int, PetscInt, TSMonitorDrawCtx *);
428 PETSC_EXTERN PetscErrorCode         TSMonitorDrawCtxDestroy(TSMonitorDrawCtx *);
429 PETSC_EXTERN PetscErrorCode         TSMonitorDrawSolution(TS, PetscInt, PetscReal, Vec, void *);
430 PETSC_EXTERN PetscErrorCode         TSMonitorDrawSolutionPhase(TS, PetscInt, PetscReal, Vec, void *);
431 PETSC_EXTERN PetscErrorCode         TSMonitorDrawError(TS, PetscInt, PetscReal, Vec, void *);
432 PETSC_EXTERN PetscErrorCode         TSMonitorDrawSolutionFunction(TS, PetscInt, PetscReal, Vec, void *);
433 
434 PETSC_EXTERN PetscErrorCode TSAdjointMonitorDefault(TS, PetscInt, PetscReal, Vec, PetscInt, Vec *, Vec *, PetscViewerAndFormat *);
435 PETSC_EXTERN PetscErrorCode TSAdjointMonitorDrawSensi(TS, PetscInt, PetscReal, Vec, PetscInt, Vec *, Vec *, void *);
436 
437 PETSC_EXTERN PetscErrorCode TSMonitorSolution(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *);
438 PETSC_EXTERN PetscErrorCode TSMonitorSolutionVTK(TS, PetscInt, PetscReal, Vec, void *);
439 PETSC_EXTERN PetscErrorCode TSMonitorSolutionVTKDestroy(void *);
440 
441 PETSC_EXTERN PetscErrorCode TSStep(TS);
442 PETSC_EXTERN PetscErrorCode TSEvaluateWLTE(TS, NormType, PetscInt *, PetscReal *);
443 PETSC_EXTERN PetscErrorCode TSEvaluateStep(TS, PetscInt, Vec, PetscBool *);
444 PETSC_EXTERN PetscErrorCode TSSolve(TS, Vec);
445 PETSC_EXTERN PetscErrorCode TSGetEquationType(TS, TSEquationType *);
446 PETSC_EXTERN PetscErrorCode TSSetEquationType(TS, TSEquationType);
447 PETSC_EXTERN PetscErrorCode TSGetConvergedReason(TS, TSConvergedReason *);
448 PETSC_EXTERN PetscErrorCode TSSetConvergedReason(TS, TSConvergedReason);
449 PETSC_EXTERN PetscErrorCode TSGetSolveTime(TS, PetscReal *);
450 PETSC_EXTERN PetscErrorCode TSGetSNESIterations(TS, PetscInt *);
451 PETSC_EXTERN PetscErrorCode TSGetKSPIterations(TS, PetscInt *);
452 PETSC_EXTERN PetscErrorCode TSGetStepRejections(TS, PetscInt *);
453 PETSC_EXTERN PetscErrorCode TSSetMaxStepRejections(TS, PetscInt);
454 PETSC_EXTERN PetscErrorCode TSGetSNESFailures(TS, PetscInt *);
455 PETSC_EXTERN PetscErrorCode TSSetMaxSNESFailures(TS, PetscInt);
456 PETSC_EXTERN PetscErrorCode TSSetErrorIfStepFails(TS, PetscBool);
457 PETSC_EXTERN PetscErrorCode TSRestartStep(TS);
458 PETSC_EXTERN PetscErrorCode TSRollBack(TS);
459 
460 PETSC_EXTERN PetscErrorCode TSGetStages(TS, PetscInt *, Vec *[]);
461 
462 PETSC_EXTERN PetscErrorCode TSGetTime(TS, PetscReal *);
463 PETSC_EXTERN PetscErrorCode TSSetTime(TS, PetscReal);
464 PETSC_EXTERN PetscErrorCode TSGetPrevTime(TS, PetscReal *);
465 PETSC_EXTERN PetscErrorCode TSGetTimeStep(TS, PetscReal *);
466 PETSC_EXTERN PetscErrorCode TSSetTimeStep(TS, PetscReal);
467 PETSC_EXTERN PetscErrorCode TSGetStepNumber(TS, PetscInt *);
468 PETSC_EXTERN PetscErrorCode TSSetStepNumber(TS, PetscInt);
469 
470 /*S
471   TSRHSFunctionFn - A prototype of a `TS` right-hand-side evaluation function that would be passed to `TSSetRHSFunction()`
472 
473   Calling Sequence:
474 + ts  - timestep context
475 . t   - current time
476 . u   - input vector
477 . F   - function vector
478 - ctx - [optional] user-defined function context
479 
480   Level: beginner
481 
482   Note:
483   The deprecated `TSRHSFunction` still works as a replacement for `TSRHSFunctionFn` *.
484 
485 .seealso: [](ch_ts), `TS`, `TSSetRHSFunction()`, `DMTSSetRHSFunction()`, `TSIFunctionFn`,
486 `TSIJacobianFn`, `TSRHSJacobianFn`
487 S*/
488 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSRHSFunctionFn)(TS ts, PetscReal t, Vec u, Vec F, void *ctx);
489 
490 PETSC_EXTERN_TYPEDEF typedef TSRHSFunctionFn *TSRHSFunction;
491 
492 /*S
493   TSRHSJacobianFn - A prototype of a `TS` right-hand-side Jacobian evaluation function that would be passed to `TSSetRHSJacobian()`
494 
495   Calling Sequence:
496 + ts   - the `TS` context obtained from `TSCreate()`
497 . t    - current time
498 . u    - input vector
499 . Amat - (approximate) Jacobian matrix
500 . Pmat - matrix from which preconditioner is to be constructed (usually the same as `Amat`)
501 - ctx  - [optional] user-defined context for matrix evaluation routine
502 
503   Level: beginner
504 
505   Note:
506   The deprecated `TSRHSJacobian` still works as a replacement for `TSRHSJacobianFn` *.
507 
508 .seealso: [](ch_ts), `TS`, `TSSetRHSJacobian()`, `DMTSSetRHSJacobian()`, `TSRHSFunctionFn`,
509 `TSIFunctionFn`, `TSIJacobianFn`
510 S*/
511 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSRHSJacobianFn)(TS ts, PetscReal t, Vec u, Mat Amat, Mat Pmat, void *ctx);
512 
513 PETSC_EXTERN_TYPEDEF typedef TSRHSJacobianFn *TSRHSJacobian;
514 
515 /*S
516   TSRHSJacobianPFn - A prototype of a function that computes the Jacobian of G w.r.t. the parameters P where
517   U_t = G(U,P,t), as well as the location to store the matrix that would be passed to `TSSetRHSJacobianP()`
518 
519   Calling Sequence:
520 + ts  - the `TS` context
521 . t   - current timestep
522 . U   - input vector (current ODE solution)
523 . A   - output matrix
524 - ctx - [optional] user-defined function context
525 
526   Level: beginner
527 
528   Note:
529   The deprecated `TSRHSJacobianP` still works as a replacement for `TSRHSJacobianPFn` *.
530 
531 .seealso: [](ch_ts), `TS`, `TSSetRHSJacobianP()`, `TSGetRHSJacobianP()`
532 S*/
533 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSRHSJacobianPFn)(TS ts, PetscReal t, Vec U, Mat A, void *ctx);
534 
535 PETSC_EXTERN_TYPEDEF typedef TSRHSJacobianPFn *TSRHSJacobianP;
536 
537 PETSC_EXTERN PetscErrorCode TSSetRHSFunction(TS, Vec, TSRHSFunctionFn *, void *);
538 PETSC_EXTERN PetscErrorCode TSGetRHSFunction(TS, Vec *, TSRHSFunctionFn **, void **);
539 PETSC_EXTERN PetscErrorCode TSSetRHSJacobian(TS, Mat, Mat, TSRHSJacobianFn *, void *);
540 PETSC_EXTERN PetscErrorCode TSGetRHSJacobian(TS, Mat *, Mat *, TSRHSJacobianFn **, void **);
541 PETSC_EXTERN PetscErrorCode TSRHSJacobianSetReuse(TS, PetscBool);
542 
543 /*S
544   TSSolutionFn - A prototype of a `TS` solution evaluation function that would be passed to `TSSetSolutionFunction()`
545 
546   Calling Sequence:
547 + ts  - timestep context
548 . t   - current time
549 . u   - output vector
550 - ctx - [optional] user-defined function context
551 
552   Level: advanced
553 
554   Note:
555   The deprecated `TSSolutionFunction` still works as a replacement for `TSSolutionFn` *.
556 
557 .seealso: [](ch_ts), `TS`, `TSSetSolutionFunction()`, `DMTSSetSolutionFunction()`
558 S*/
559 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSSolutionFn)(TS ts, PetscReal t, Vec u, void *ctx);
560 
561 PETSC_EXTERN_TYPEDEF typedef TSSolutionFn *TSSolutionFunction;
562 
563 PETSC_EXTERN PetscErrorCode TSSetSolutionFunction(TS, TSSolutionFn *, void *);
564 
565 /*S
566   TSForcingFn - A prototype of a `TS` forcing function evaluation function that would be passed to `TSSetForcingFunction()`
567 
568   Calling Sequence:
569 + ts  - timestep context
570 . t   - current time
571 . f   - output vector
572 - ctx - [optional] user-defined function context
573 
574   Level: advanced
575 
576   Note:
577   The deprecated `TSForcingFunction` still works as a replacement for `TSForcingFn` *.
578 
579 .seealso: [](ch_ts), `TS`, `TSSetForcingFunction()`, `DMTSSetForcingFunction()`
580 S*/
581 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSForcingFn)(TS ts, PetscReal t, Vec f, void *ctx);
582 
583 PETSC_EXTERN_TYPEDEF typedef TSForcingFn *TSForcingFunction;
584 
585 PETSC_EXTERN PetscErrorCode TSSetForcingFunction(TS, TSForcingFn *, void *);
586 
587 /*S
588   TSIFunctionFn - A prototype of a `TS` implicit function evaluation function that would be passed to `TSSetIFunction()
589 
590   Calling Sequence:
591 + ts  - the `TS` context obtained from `TSCreate()`
592 . t   - time at step/stage being solved
593 . U   - state vector
594 . U_t - time derivative of state vector
595 . F   - function vector
596 - ctx - [optional] user-defined context for function
597 
598   Level: beginner
599 
600   Note:
601   The deprecated `TSIFunction` still works as a replacement for `TSIFunctionFn` *.
602 
603 .seealso: [](ch_ts), `TS`, `TSSetIFunction()`, `DMTSSetIFunction()`, `TSIJacobianFn`, `TSRHSFunctionFn`, `TSRHSJacobianFn`
604 S*/
605 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSIFunctionFn)(TS ts, PetscReal t, Vec U, Vec U_t, Vec F, void *ctx);
606 
607 PETSC_EXTERN_TYPEDEF typedef TSIFunctionFn *TSIFunction;
608 
609 /*S
610   TSIJacobianFn - A prototype of a `TS` Jacobian evaluation function that would be passed to `TSSetIJacobian()`
611 
612   Calling Sequence:
613 + ts   - the `TS` context obtained from `TSCreate()`
614 . t    - time at step/stage being solved
615 . U    - state vector
616 . U_t  - time derivative of state vector
617 . a    - shift
618 . Amat - (approximate) Jacobian of F(t,U,W+a*U), equivalent to dF/dU + a*dF/dU_t
619 . Pmat - matrix used for constructing preconditioner, usually the same as `Amat`
620 - ctx  - [optional] user-defined context for Jacobian evaluation routine
621 
622   Level: beginner
623 
624   Note:
625   The deprecated `TSIJacobian` still works as a replacement for `TSIJacobianFn` *.
626 
627 .seealso: [](ch_ts), `TSSetIJacobian()`, `DMTSSetIJacobian()`, `TSIFunctionFn`, `TSRHSFunctionFn`, `TSRHSJacobianFn`
628 S*/
629 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSIJacobianFn)(TS ts, PetscReal t, Vec U, Vec U_t, PetscReal a, Mat Amat, Mat Pmat, void *ctx);
630 
631 PETSC_EXTERN_TYPEDEF typedef TSIJacobianFn *TSIJacobian;
632 
633 PETSC_EXTERN PetscErrorCode TSSetIFunction(TS, Vec, TSIFunctionFn *, void *);
634 PETSC_EXTERN PetscErrorCode TSGetIFunction(TS, Vec *, TSIFunctionFn **, void **);
635 PETSC_EXTERN PetscErrorCode TSSetIJacobian(TS, Mat, Mat, TSIJacobianFn *, void *);
636 PETSC_EXTERN PetscErrorCode TSGetIJacobian(TS, Mat *, Mat *, TSIJacobianFn **, void **);
637 
638 /*S
639   TSI2FunctionFn - A prototype of a `TS` implicit function evaluation function for 2nd order systems that would be passed to `TSSetI2Function()`
640 
641   Calling Sequence:
642 + ts   - the `TS` context obtained from `TSCreate()`
643 . t    - time at step/stage being solved
644 . U    - state vector
645 . U_t  - time derivative of state vector
646 . U_tt - second time derivative of state vector
647 . F    - function vector
648 - ctx  - [optional] user-defined context for matrix evaluation routine (may be `NULL`)
649 
650   Level: advanced
651 
652   Note:
653   The deprecated `TSI2Function` still works as a replacement for `TSI2FunctionFn` *.
654 
655 .seealso: [](ch_ts), `TS`, `TSSetI2Function()`, `DMTSSetI2Function()`, `TSIFunctionFn`
656 S*/
657 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSI2FunctionFn)(TS ts, PetscReal t, Vec U, Vec U_t, Vec U_tt, Vec F, void *ctx);
658 
659 PETSC_EXTERN_TYPEDEF typedef TSI2FunctionFn *TSI2Function;
660 
661 /*S
662   TSI2JacobianFn - A prototype of a `TS` implicit Jacobian evaluation function for 2nd order systems that would be passed to `TSSetI2Jacobian()`
663 
664   Calling Sequence:
665 + ts   - the `TS` context obtained from `TSCreate()`
666 . t    - time at step/stage being solved
667 . U    - state vector
668 . U_t  - time derivative of state vector
669 . U_tt - second time derivative of state vector
670 . v    - shift for U_t
671 . a    - shift for U_tt
672 . J    - Jacobian of G(U) = F(t,U,W+v*U,W'+a*U), equivalent to dF/dU + v*dF/dU_t  + a*dF/dU_tt
673 . jac  - matrix from which to construct the preconditioner, may be same as `J`
674 - ctx  - [optional] user-defined context for matrix evaluation routine
675 
676   Level: advanced
677 
678   Note:
679   The deprecated `TSI2Jacobian` still works as a replacement for `TSI2JacobianFn` *.
680 
681 .seealso: [](ch_ts), `TS`, `TSSetI2Jacobian()`, `DMTSSetI2Jacobian()`, `TSIFunctionFn`, `TSIJacobianFn`, `TSRHSFunctionFn`, `TSRHSJacobianFn`
682 S*/
683 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSI2JacobianFn)(TS ts, PetscReal t, Vec U, Vec U_t, Vec U_tt, PetscReal v, PetscReal a, Mat J, Mat Jac, void *ctx);
684 
685 PETSC_EXTERN_TYPEDEF typedef TSI2JacobianFn *TSI2Jacobian;
686 
687 PETSC_EXTERN PetscErrorCode TSSetI2Function(TS, Vec, TSI2FunctionFn *, void *);
688 PETSC_EXTERN PetscErrorCode TSGetI2Function(TS, Vec *, TSI2FunctionFn **, void **);
689 PETSC_EXTERN PetscErrorCode TSSetI2Jacobian(TS, Mat, Mat, TSI2JacobianFn *, void *);
690 PETSC_EXTERN PetscErrorCode TSGetI2Jacobian(TS, Mat *, Mat *, TSI2JacobianFn **, void **);
691 
692 PETSC_EXTERN PetscErrorCode TSRHSSplitSetIS(TS, const char[], IS);
693 PETSC_EXTERN PetscErrorCode TSRHSSplitGetIS(TS, const char[], IS *);
694 PETSC_EXTERN PetscErrorCode TSRHSSplitSetRHSFunction(TS, const char[], Vec, TSRHSFunctionFn *, void *);
695 PETSC_EXTERN PetscErrorCode TSRHSSplitGetSubTS(TS, const char[], TS *);
696 PETSC_EXTERN PetscErrorCode TSRHSSplitGetSubTSs(TS, PetscInt *, TS *[]);
697 PETSC_EXTERN PetscErrorCode TSSetUseSplitRHSFunction(TS, PetscBool);
698 PETSC_EXTERN PetscErrorCode TSGetUseSplitRHSFunction(TS, PetscBool *);
699 
700 PETSC_EXTERN TSRHSFunctionFn TSComputeRHSFunctionLinear;
701 PETSC_EXTERN TSRHSJacobianFn TSComputeRHSJacobianConstant;
702 PETSC_EXTERN PetscErrorCode  TSComputeIFunctionLinear(TS, PetscReal, Vec, Vec, Vec, void *);
703 PETSC_EXTERN PetscErrorCode  TSComputeIJacobianConstant(TS, PetscReal, Vec, Vec, PetscReal, Mat, Mat, void *);
704 PETSC_EXTERN PetscErrorCode  TSComputeSolutionFunction(TS, PetscReal, Vec);
705 PETSC_EXTERN PetscErrorCode  TSComputeForcingFunction(TS, PetscReal, Vec);
706 PETSC_EXTERN PetscErrorCode  TSComputeIJacobianDefaultColor(TS, PetscReal, Vec, Vec, PetscReal, Mat, Mat, void *);
707 PETSC_EXTERN PetscErrorCode  TSPruneIJacobianColor(TS, Mat, Mat);
708 
709 PETSC_EXTERN PetscErrorCode TSSetPreStep(TS, PetscErrorCode (*)(TS));
710 PETSC_EXTERN PetscErrorCode TSSetPreStage(TS, PetscErrorCode (*)(TS, PetscReal));
711 PETSC_EXTERN PetscErrorCode TSSetPostStage(TS, PetscErrorCode (*)(TS, PetscReal, PetscInt, Vec *));
712 PETSC_EXTERN PetscErrorCode TSSetPostEvaluate(TS, PetscErrorCode (*)(TS));
713 PETSC_EXTERN PetscErrorCode TSSetPostStep(TS, PetscErrorCode (*)(TS));
714 PETSC_EXTERN PetscErrorCode TSSetResize(TS, PetscErrorCode (*)(TS, PetscInt, PetscReal, Vec, PetscBool *, void *), PetscErrorCode (*)(TS, PetscInt, Vec[], Vec[], void *), void *);
715 PETSC_EXTERN PetscErrorCode TSPreStep(TS);
716 PETSC_EXTERN PetscErrorCode TSPreStage(TS, PetscReal);
717 PETSC_EXTERN PetscErrorCode TSPostStage(TS, PetscReal, PetscInt, Vec *);
718 PETSC_EXTERN PetscErrorCode TSPostEvaluate(TS);
719 PETSC_EXTERN PetscErrorCode TSPostStep(TS);
720 PETSC_EXTERN PetscErrorCode TSResize(TS);
721 PETSC_EXTERN PetscErrorCode TSResizeRetrieveVec(TS, const char *, Vec *);
722 PETSC_EXTERN PetscErrorCode TSResizeRegisterVec(TS, const char *, Vec);
723 
724 PETSC_EXTERN PetscErrorCode TSInterpolate(TS, PetscReal, Vec);
725 PETSC_EXTERN PetscErrorCode TSSetTolerances(TS, PetscReal, Vec, PetscReal, Vec);
726 PETSC_EXTERN PetscErrorCode TSGetTolerances(TS, PetscReal *, Vec *, PetscReal *, Vec *);
727 PETSC_EXTERN PetscErrorCode TSErrorWeightedNorm(TS, Vec, Vec, NormType, PetscReal *, PetscReal *, PetscReal *);
728 PETSC_EXTERN PetscErrorCode TSErrorWeightedENorm(TS, Vec, Vec, Vec, NormType, PetscReal *, PetscReal *, PetscReal *);
729 PETSC_EXTERN PetscErrorCode TSSetCFLTimeLocal(TS, PetscReal);
730 PETSC_EXTERN PetscErrorCode TSGetCFLTime(TS, PetscReal *);
731 PETSC_EXTERN PetscErrorCode TSSetFunctionDomainError(TS, PetscErrorCode (*)(TS, PetscReal, Vec, PetscBool *));
732 PETSC_EXTERN PetscErrorCode TSFunctionDomainError(TS, PetscReal, Vec, PetscBool *);
733 
734 PETSC_EXTERN PetscErrorCode TSPseudoSetTimeStep(TS, PetscErrorCode (*)(TS, PetscReal *, void *), void *);
735 PETSC_EXTERN PetscErrorCode TSPseudoTimeStepDefault(TS, PetscReal *, void *);
736 PETSC_EXTERN PetscErrorCode TSPseudoComputeTimeStep(TS, PetscReal *);
737 PETSC_EXTERN PetscErrorCode TSPseudoSetMaxTimeStep(TS, PetscReal);
738 PETSC_EXTERN PetscErrorCode TSPseudoSetVerifyTimeStep(TS, PetscErrorCode (*)(TS, Vec, void *, PetscReal *, PetscBool *), void *);
739 PETSC_EXTERN PetscErrorCode TSPseudoVerifyTimeStepDefault(TS, Vec, void *, PetscReal *, PetscBool *);
740 PETSC_EXTERN PetscErrorCode TSPseudoVerifyTimeStep(TS, Vec, PetscReal *, PetscBool *);
741 PETSC_EXTERN PetscErrorCode TSPseudoSetTimeStepIncrement(TS, PetscReal);
742 PETSC_EXTERN PetscErrorCode TSPseudoIncrementDtFromInitialDt(TS);
743 
744 PETSC_EXTERN PetscErrorCode TSPythonSetType(TS, const char[]);
745 PETSC_EXTERN PetscErrorCode TSPythonGetType(TS, const char *[]);
746 
747 PETSC_EXTERN PetscErrorCode TSComputeRHSFunction(TS, PetscReal, Vec, Vec);
748 PETSC_EXTERN PetscErrorCode TSComputeRHSJacobian(TS, PetscReal, Vec, Mat, Mat);
749 PETSC_EXTERN PetscErrorCode TSComputeIFunction(TS, PetscReal, Vec, Vec, Vec, PetscBool);
750 PETSC_EXTERN PetscErrorCode TSComputeIJacobian(TS, PetscReal, Vec, Vec, PetscReal, Mat, Mat, PetscBool);
751 PETSC_EXTERN PetscErrorCode TSComputeI2Function(TS, PetscReal, Vec, Vec, Vec, Vec);
752 PETSC_EXTERN PetscErrorCode TSComputeI2Jacobian(TS, PetscReal, Vec, Vec, Vec, PetscReal, PetscReal, Mat, Mat);
753 PETSC_EXTERN PetscErrorCode TSComputeLinearStability(TS, PetscReal, PetscReal, PetscReal *, PetscReal *);
754 
755 PETSC_EXTERN PetscErrorCode TSVISetVariableBounds(TS, Vec, Vec);
756 
757 PETSC_EXTERN PetscErrorCode DMTSSetBoundaryLocal(DM, PetscErrorCode (*)(DM, PetscReal, Vec, Vec, void *), void *);
758 PETSC_EXTERN PetscErrorCode DMTSSetRHSFunction(DM, TSRHSFunctionFn *, void *);
759 PETSC_EXTERN PetscErrorCode DMTSGetRHSFunction(DM, TSRHSFunctionFn **, void **);
760 PETSC_EXTERN PetscErrorCode DMTSSetRHSFunctionContextDestroy(DM, PetscErrorCode (*)(void *));
761 PETSC_EXTERN PetscErrorCode DMTSSetRHSJacobian(DM, TSRHSJacobianFn *, void *);
762 PETSC_EXTERN PetscErrorCode DMTSGetRHSJacobian(DM, TSRHSJacobianFn **, void **);
763 PETSC_EXTERN PetscErrorCode DMTSSetRHSJacobianContextDestroy(DM, PetscErrorCode (*)(void *));
764 PETSC_EXTERN PetscErrorCode DMTSSetIFunction(DM, TSIFunctionFn *, void *);
765 PETSC_EXTERN PetscErrorCode DMTSGetIFunction(DM, TSIFunctionFn **, void **);
766 PETSC_EXTERN PetscErrorCode DMTSSetIFunctionContextDestroy(DM, PetscErrorCode (*)(void *));
767 PETSC_EXTERN PetscErrorCode DMTSSetIJacobian(DM, TSIJacobianFn *, void *);
768 PETSC_EXTERN PetscErrorCode DMTSGetIJacobian(DM, TSIJacobianFn **, void **);
769 PETSC_EXTERN PetscErrorCode DMTSSetIJacobianContextDestroy(DM, PetscErrorCode (*)(void *));
770 PETSC_EXTERN PetscErrorCode DMTSSetI2Function(DM, TSI2FunctionFn *, void *);
771 PETSC_EXTERN PetscErrorCode DMTSGetI2Function(DM, TSI2FunctionFn **, void **);
772 PETSC_EXTERN PetscErrorCode DMTSSetI2FunctionContextDestroy(DM, PetscErrorCode (*)(void *));
773 PETSC_EXTERN PetscErrorCode DMTSSetI2Jacobian(DM, TSI2JacobianFn *, void *);
774 PETSC_EXTERN PetscErrorCode DMTSGetI2Jacobian(DM, TSI2JacobianFn **, void **);
775 PETSC_EXTERN PetscErrorCode DMTSSetI2JacobianContextDestroy(DM, PetscErrorCode (*)(void *));
776 
777 /*S
778   TSTransientVariableFn - A prototype of a function to transform from state to transient variables that would be passed to `TSSetTransientVariable()`
779 
780   Calling Sequence:
781 + ts  - timestep context
782 . p   - input vector (primitive form)
783 . c   - output vector, transient variables (conservative form)
784 - ctx - [optional] user-defined function context
785 
786   Level: advanced
787 
788   Note:
789   The deprecated `TSTransientVariable` still works as a replacement for `TSTransientVariableFn` *.
790 
791 .seealso: [](ch_ts), `TS`, `TSSetTransientVariable()`, `DMTSSetTransientVariable()`
792 S*/
793 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSTransientVariableFn)(TS ts, Vec p, Vec c, void *ctx);
794 
795 PETSC_EXTERN_TYPEDEF typedef TSTransientVariableFn *TSTransientVariable;
796 
797 PETSC_EXTERN PetscErrorCode TSSetTransientVariable(TS, TSTransientVariableFn *, void *);
798 PETSC_EXTERN PetscErrorCode DMTSSetTransientVariable(DM, TSTransientVariableFn *, void *);
799 PETSC_EXTERN PetscErrorCode DMTSGetTransientVariable(DM, TSTransientVariableFn **, void *);
800 PETSC_EXTERN PetscErrorCode TSComputeTransientVariable(TS, Vec, Vec);
801 PETSC_EXTERN PetscErrorCode TSHasTransientVariable(TS, PetscBool *);
802 
803 PETSC_EXTERN PetscErrorCode DMTSSetSolutionFunction(DM, TSSolutionFn *, void *);
804 PETSC_EXTERN PetscErrorCode DMTSGetSolutionFunction(DM, TSSolutionFn **, void **);
805 PETSC_EXTERN PetscErrorCode DMTSSetForcingFunction(DM, TSForcingFn *, void *);
806 PETSC_EXTERN PetscErrorCode DMTSGetForcingFunction(DM, TSForcingFn **, void **);
807 PETSC_EXTERN PetscErrorCode DMTSCheckResidual(TS, DM, PetscReal, Vec, Vec, PetscReal, PetscReal *);
808 PETSC_EXTERN PetscErrorCode DMTSCheckJacobian(TS, DM, PetscReal, Vec, Vec, PetscReal, PetscBool *, PetscReal *);
809 PETSC_EXTERN PetscErrorCode DMTSCheckFromOptions(TS, Vec);
810 
811 PETSC_EXTERN PetscErrorCode DMTSGetIFunctionLocal(DM, PetscErrorCode (**)(DM, PetscReal, Vec, Vec, Vec, void *), void **);
812 PETSC_EXTERN PetscErrorCode DMTSSetIFunctionLocal(DM, PetscErrorCode (*)(DM, PetscReal, Vec, Vec, Vec, void *), void *);
813 PETSC_EXTERN PetscErrorCode DMTSGetIJacobianLocal(DM, PetscErrorCode (**)(DM, PetscReal, Vec, Vec, PetscReal, Mat, Mat, void *), void **);
814 PETSC_EXTERN PetscErrorCode DMTSSetIJacobianLocal(DM, PetscErrorCode (*)(DM, PetscReal, Vec, Vec, PetscReal, Mat, Mat, void *), void *);
815 PETSC_EXTERN PetscErrorCode DMTSGetRHSFunctionLocal(DM, PetscErrorCode (**)(DM, PetscReal, Vec, Vec, void *), void **);
816 PETSC_EXTERN PetscErrorCode DMTSSetRHSFunctionLocal(DM, PetscErrorCode (*)(DM, PetscReal, Vec, Vec, void *), void *);
817 PETSC_EXTERN PetscErrorCode DMTSCreateRHSMassMatrix(DM);
818 PETSC_EXTERN PetscErrorCode DMTSCreateRHSMassMatrixLumped(DM);
819 PETSC_EXTERN PetscErrorCode DMTSDestroyRHSMassMatrix(DM);
820 
821 PETSC_EXTERN PetscErrorCode DMTSSetIFunctionSerialize(DM, PetscErrorCode (*)(void *, PetscViewer), PetscErrorCode (*)(void **, PetscViewer));
822 PETSC_EXTERN PetscErrorCode DMTSSetIJacobianSerialize(DM, PetscErrorCode (*)(void *, PetscViewer), PetscErrorCode (*)(void **, PetscViewer));
823 
824 /*S
825   DMDATSRHSFunctionLocalFn - A prototype of a local `TS` right hand side residual evaluation function for use with `DMDA` that would be passed to `DMDATSSetRHSFunctionLocal()`
826 
827   Calling Sequence:
828 + info - defines the subdomain to evaluate the residual on
829 . t    - time at which to evaluate residual
830 . x    - array of local state information
831 . f    - output array of local residual information
832 - ctx  - optional user context
833 
834   Level: beginner
835 
836   Note:
837   The deprecated `DMDATSRHSFunctionLocal` still works as a replacement for `DMDATSRHSFunctionLocalFn` *.
838 
839 .seealso: `DMDA`, `DMDATSSetRHSFunctionLocal()`, `TSRHSFunctionFn`, `DMDATSRHSJacobianLocalFn`, `DMDATSIJacobianLocalFn`, `DMDATSIFunctionLocalFn`
840 S*/
841 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(DMDATSRHSFunctionLocalFn)(DMDALocalInfo *info, PetscReal t, void *x, void *f, void *ctx);
842 
843 PETSC_EXTERN_TYPEDEF typedef DMDATSRHSFunctionLocalFn *DMDATSRHSFunctionLocal;
844 
845 /*S
846   DMDATSRHSJacobianLocalFn - A prototype of a local residual evaluation function for use with `DMDA` that would be passed to `DMDATSSetRHSJacobianLocal()`
847 
848   Calling Sequence:
849 + info - defines the subdomain to evaluate the residual on
850 . t    - time at which to evaluate residual
851 . x    - array of local state information
852 . J    - Jacobian matrix
853 . B    - matrix from which to construct the preconditioner; often same as `J`
854 - ctx  - optional context
855 
856   Level: beginner
857 
858   Note:
859   The deprecated `DMDATSRHSJacobianLocal` still works as a replacement for `DMDATSRHSJacobianLocalFn` *.
860 
861 .seealso: `DMDA`, `DMDATSSetRHSJacobianLocal()`, `TSRHSJacobianFn`, `DMDATSRHSFunctionLocalFn`, `DMDATSIJacobianLocalFn`, `DMDATSIFunctionLocalFn`
862 S*/
863 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(DMDATSRHSJacobianLocalFn)(DMDALocalInfo *info, PetscReal t, void *x, Mat J, Mat B, void *ctx);
864 
865 PETSC_EXTERN_TYPEDEF typedef DMDATSRHSJacobianLocalFn *DMDATSRHSJacobianLocal;
866 
867 /*S
868   DMDATSIFunctionLocalFn - A prototype of a local residual evaluation function for use with `DMDA` that would be passed to `DMDATSSetIFunctionLocal()`
869 
870   Calling Sequence:
871 + info  - defines the subdomain to evaluate the residual on
872 . t     - time at which to evaluate residual
873 . x     - array of local state information
874 . xdot  - array of local time derivative information
875 . imode - output array of local function evaluation information
876 - ctx   - optional context
877 
878   Level: beginner
879 
880   Note:
881   The deprecated `DMDATSIFunctionLocal` still works as a replacement for `DMDATSIFunctionLocalFn` *.
882 
883 .seealso: `DMDA`, `DMDATSSetIFunctionLocal()`, `DMDATSIJacobianLocalFn`, `TSIFunctionFn`
884 S*/
885 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(DMDATSIFunctionLocalFn)(DMDALocalInfo *info, PetscReal t, void *x, void *xdot, void *imode, void *ctx);
886 
887 PETSC_EXTERN_TYPEDEF typedef DMDATSIFunctionLocalFn *DMDATSIFunctionLocal;
888 
889 /*S
890   DMDATSIJacobianLocalFn - A prototype of a local residual evaluation function for use with `DMDA` that would be passed to `DMDATSSetIJacobianLocal()`
891 
892   Calling Sequence:
893 + info  - defines the subdomain to evaluate the residual on
894 . t     - time at which to evaluate the jacobian
895 . x     - array of local state information
896 . xdot  - time derivative at this state
897 . shift - see `TSSetIJacobian()` for the meaning of this parameter
898 . J     - Jacobian matrix
899 . B     - matrix from which to construct the preconditioner; often same as `J`
900 - ctx   - optional context
901 
902   Level: beginner
903 
904   Note:
905   The deprecated `DMDATSIJacobianLocal` still works as a replacement for `DMDATSIJacobianLocalFn` *.
906 
907 .seealso: `DMDA` `DMDATSSetIJacobianLocal()`, `TSIJacobianFn`, `DMDATSIFunctionLocalFn`, `DMDATSRHSFunctionLocalFn`,  `DMDATSRHSJacobianlocal()`
908 S*/
909 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(DMDATSIJacobianLocalFn)(DMDALocalInfo *info, PetscReal t, void *x, void *xdot, PetscReal shift, Mat J, Mat B, void *ctx);
910 
911 PETSC_EXTERN_TYPEDEF typedef DMDATSIJacobianLocalFn *DMDATSIJacobianLocal;
912 
913 PETSC_EXTERN PetscErrorCode DMDATSSetRHSFunctionLocal(DM, InsertMode, DMDATSRHSFunctionLocalFn *, void *);
914 PETSC_EXTERN PetscErrorCode DMDATSSetRHSJacobianLocal(DM, DMDATSRHSJacobianLocalFn *, void *);
915 PETSC_EXTERN PetscErrorCode DMDATSSetIFunctionLocal(DM, InsertMode, DMDATSIFunctionLocalFn *, void *);
916 PETSC_EXTERN PetscErrorCode DMDATSSetIJacobianLocal(DM, DMDATSIJacobianLocalFn *, void *);
917 
918 typedef struct _n_TSMonitorLGCtx *TSMonitorLGCtx;
919 typedef struct {
920   Vec            ray;
921   VecScatter     scatter;
922   PetscViewer    viewer;
923   TSMonitorLGCtx lgctx;
924 } TSMonitorDMDARayCtx;
925 PETSC_EXTERN PetscErrorCode TSMonitorDMDARayDestroy(void **);
926 PETSC_EXTERN PetscErrorCode TSMonitorDMDARay(TS, PetscInt, PetscReal, Vec, void *);
927 PETSC_EXTERN PetscErrorCode TSMonitorLGDMDARay(TS, PetscInt, PetscReal, Vec, void *);
928 
929 /* Dynamic creation and loading functions */
930 PETSC_EXTERN PetscFunctionList TSList;
931 PETSC_EXTERN PetscErrorCode    TSGetType(TS, TSType *);
932 PETSC_EXTERN PetscErrorCode    TSSetType(TS, TSType);
933 PETSC_EXTERN PetscErrorCode    TSRegister(const char[], PetscErrorCode (*)(TS));
934 
935 PETSC_EXTERN PetscErrorCode TSGetSNES(TS, SNES *);
936 PETSC_EXTERN PetscErrorCode TSSetSNES(TS, SNES);
937 PETSC_EXTERN PetscErrorCode TSGetKSP(TS, KSP *);
938 
939 PETSC_EXTERN PetscErrorCode TSView(TS, PetscViewer);
940 PETSC_EXTERN PetscErrorCode TSLoad(TS, PetscViewer);
941 PETSC_EXTERN PetscErrorCode TSViewFromOptions(TS, PetscObject, const char[]);
942 PETSC_EXTERN PetscErrorCode TSTrajectoryViewFromOptions(TSTrajectory, PetscObject, const char[]);
943 
944 #define TS_FILE_CLASSID 1211225
945 
946 PETSC_EXTERN PetscErrorCode TSSetApplicationContext(TS, void *);
947 PETSC_EXTERN PetscErrorCode TSGetApplicationContext(TS, void *);
948 
949 PETSC_EXTERN PetscErrorCode TSMonitorLGCtxCreate(MPI_Comm, const char[], const char[], int, int, int, int, PetscInt, TSMonitorLGCtx *);
950 PETSC_EXTERN PetscErrorCode TSMonitorLGCtxDestroy(TSMonitorLGCtx *);
951 PETSC_EXTERN PetscErrorCode TSMonitorLGTimeStep(TS, PetscInt, PetscReal, Vec, void *);
952 PETSC_EXTERN PetscErrorCode TSMonitorLGSolution(TS, PetscInt, PetscReal, Vec, void *);
953 PETSC_EXTERN PetscErrorCode TSMonitorLGSetVariableNames(TS, const char *const *);
954 PETSC_EXTERN PetscErrorCode TSMonitorLGGetVariableNames(TS, const char *const **);
955 PETSC_EXTERN PetscErrorCode TSMonitorLGCtxSetVariableNames(TSMonitorLGCtx, const char *const *);
956 PETSC_EXTERN PetscErrorCode TSMonitorLGSetDisplayVariables(TS, const char *const *);
957 PETSC_EXTERN PetscErrorCode TSMonitorLGCtxSetDisplayVariables(TSMonitorLGCtx, const char *const *);
958 PETSC_EXTERN PetscErrorCode TSMonitorLGSetTransform(TS, PetscErrorCode (*)(void *, Vec, Vec *), PetscErrorCode (*)(void *), void *);
959 PETSC_EXTERN PetscErrorCode TSMonitorLGCtxSetTransform(TSMonitorLGCtx, PetscErrorCode (*)(void *, Vec, Vec *), PetscErrorCode (*)(void *), void *);
960 PETSC_EXTERN PetscErrorCode TSMonitorLGError(TS, PetscInt, PetscReal, Vec, void *);
961 PETSC_EXTERN PetscErrorCode TSMonitorLGSNESIterations(TS, PetscInt, PetscReal, Vec, void *);
962 PETSC_EXTERN PetscErrorCode TSMonitorLGKSPIterations(TS, PetscInt, PetscReal, Vec, void *);
963 PETSC_EXTERN PetscErrorCode TSMonitorError(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *);
964 PETSC_EXTERN PetscErrorCode TSDMSwarmMonitorMoments(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *);
965 
966 struct _n_TSMonitorLGCtxNetwork {
967   PetscInt     nlg;
968   PetscDrawLG *lg;
969   PetscBool    semilogy;
970   PetscInt     howoften; /* when > 0 uses step % howoften, when negative only final solution plotted */
971 };
972 typedef struct _n_TSMonitorLGCtxNetwork *TSMonitorLGCtxNetwork;
973 PETSC_EXTERN PetscErrorCode              TSMonitorLGCtxNetworkDestroy(TSMonitorLGCtxNetwork *);
974 PETSC_EXTERN PetscErrorCode              TSMonitorLGCtxNetworkCreate(TS, const char[], const char[], int, int, int, int, PetscInt, TSMonitorLGCtxNetwork *);
975 PETSC_EXTERN PetscErrorCode              TSMonitorLGCtxNetworkSolution(TS, PetscInt, PetscReal, Vec, void *);
976 
977 typedef struct _n_TSMonitorEnvelopeCtx *TSMonitorEnvelopeCtx;
978 PETSC_EXTERN PetscErrorCode             TSMonitorEnvelopeCtxCreate(TS, TSMonitorEnvelopeCtx *);
979 PETSC_EXTERN PetscErrorCode             TSMonitorEnvelope(TS, PetscInt, PetscReal, Vec, void *);
980 PETSC_EXTERN PetscErrorCode             TSMonitorEnvelopeGetBounds(TS, Vec *, Vec *);
981 PETSC_EXTERN PetscErrorCode             TSMonitorEnvelopeCtxDestroy(TSMonitorEnvelopeCtx *);
982 
983 typedef struct _n_TSMonitorSPEigCtx *TSMonitorSPEigCtx;
984 PETSC_EXTERN PetscErrorCode          TSMonitorSPEigCtxCreate(MPI_Comm, const char[], const char[], int, int, int, int, PetscInt, TSMonitorSPEigCtx *);
985 PETSC_EXTERN PetscErrorCode          TSMonitorSPEigCtxDestroy(TSMonitorSPEigCtx *);
986 PETSC_EXTERN PetscErrorCode          TSMonitorSPEig(TS, PetscInt, PetscReal, Vec, void *);
987 
988 typedef struct _n_TSMonitorSPCtx *TSMonitorSPCtx;
989 PETSC_EXTERN PetscErrorCode       TSMonitorSPCtxCreate(MPI_Comm, const char[], const char[], int, int, int, int, PetscInt, PetscInt, PetscBool, PetscBool, TSMonitorSPCtx *);
990 PETSC_EXTERN PetscErrorCode       TSMonitorSPCtxDestroy(TSMonitorSPCtx *);
991 PETSC_EXTERN PetscErrorCode       TSMonitorSPSwarmSolution(TS, PetscInt, PetscReal, Vec, void *);
992 
993 typedef struct _n_TSMonitorHGCtx *TSMonitorHGCtx;
994 PETSC_EXTERN PetscErrorCode       TSMonitorHGCtxCreate(MPI_Comm, const char[], const char[], int, int, int, int, PetscInt, PetscInt, PetscInt, PetscBool, TSMonitorHGCtx *);
995 PETSC_EXTERN PetscErrorCode       TSMonitorHGSwarmSolution(TS, PetscInt, PetscReal, Vec, void *);
996 PETSC_EXTERN PetscErrorCode       TSMonitorHGCtxDestroy(TSMonitorHGCtx *);
997 PETSC_EXTERN PetscErrorCode       TSMonitorHGSwarmSolution(TS, PetscInt, PetscReal, Vec, void *);
998 
999 PETSC_EXTERN PetscErrorCode TSSetEventHandler(TS, PetscInt, PetscInt[], PetscBool[], PetscErrorCode (*)(TS, PetscReal, Vec, PetscReal[], void *), PetscErrorCode (*)(TS, PetscInt, PetscInt[], PetscReal, Vec, PetscBool, void *), void *);
1000 PETSC_EXTERN PetscErrorCode TSSetPostEventStep(TS, PetscReal);
1001 PETSC_EXTERN PetscErrorCode TSSetPostEventSecondStep(TS, PetscReal);
1002 PETSC_DEPRECATED_FUNCTION(3, 21, 0, "TSSetPostEventSecondStep()", ) static inline PetscErrorCode TSSetPostEventIntervalStep(TS ts, PetscReal dt)
1003 {
1004   return TSSetPostEventSecondStep(ts, dt);
1005 }
1006 PETSC_EXTERN PetscErrorCode TSSetEventTolerances(TS, PetscReal, PetscReal[]);
1007 PETSC_EXTERN PetscErrorCode TSGetNumEvents(TS, PetscInt *);
1008 
1009 /*J
1010    TSSSPType - string with the name of a `TSSSP` scheme.
1011 
1012    Level: beginner
1013 
1014 .seealso: [](ch_ts), `TSSSPSetType()`, `TS`, `TSSSP`
1015 J*/
1016 typedef const char *TSSSPType;
1017 #define TSSSPRKS2  "rks2"
1018 #define TSSSPRKS3  "rks3"
1019 #define TSSSPRK104 "rk104"
1020 
1021 PETSC_EXTERN PetscErrorCode    TSSSPSetType(TS, TSSSPType);
1022 PETSC_EXTERN PetscErrorCode    TSSSPGetType(TS, TSSSPType *);
1023 PETSC_EXTERN PetscErrorCode    TSSSPSetNumStages(TS, PetscInt);
1024 PETSC_EXTERN PetscErrorCode    TSSSPGetNumStages(TS, PetscInt *);
1025 PETSC_EXTERN PetscErrorCode    TSSSPInitializePackage(void);
1026 PETSC_EXTERN PetscErrorCode    TSSSPFinalizePackage(void);
1027 PETSC_EXTERN PetscFunctionList TSSSPList;
1028 
1029 /*S
1030    TSAdapt - Abstract object that manages time-step adaptivity
1031 
1032    Level: beginner
1033 
1034 .seealso: [](ch_ts), `TS`, `TSGetAdapt()`, `TSAdaptCreate()`, `TSAdaptType`
1035 S*/
1036 typedef struct _p_TSAdapt *TSAdapt;
1037 
1038 /*J
1039    TSAdaptType - String with the name of `TSAdapt` scheme.
1040 
1041    Level: beginner
1042 
1043 .seealso: [](ch_ts), `TSGetAdapt()`, `TSAdaptSetType()`, `TS`, `TSAdapt`
1044 J*/
1045 typedef const char *TSAdaptType;
1046 #define TSADAPTNONE    "none"
1047 #define TSADAPTBASIC   "basic"
1048 #define TSADAPTDSP     "dsp"
1049 #define TSADAPTCFL     "cfl"
1050 #define TSADAPTGLEE    "glee"
1051 #define TSADAPTHISTORY "history"
1052 
1053 PETSC_EXTERN PetscErrorCode TSGetAdapt(TS, TSAdapt *);
1054 PETSC_EXTERN PetscErrorCode TSAdaptRegister(const char[], PetscErrorCode (*)(TSAdapt));
1055 PETSC_EXTERN PetscErrorCode TSAdaptInitializePackage(void);
1056 PETSC_EXTERN PetscErrorCode TSAdaptFinalizePackage(void);
1057 PETSC_EXTERN PetscErrorCode TSAdaptCreate(MPI_Comm, TSAdapt *);
1058 PETSC_EXTERN PetscErrorCode TSAdaptSetType(TSAdapt, TSAdaptType);
1059 PETSC_EXTERN PetscErrorCode TSAdaptGetType(TSAdapt, TSAdaptType *);
1060 PETSC_EXTERN PetscErrorCode TSAdaptSetOptionsPrefix(TSAdapt, const char[]);
1061 PETSC_EXTERN PetscErrorCode TSAdaptCandidatesClear(TSAdapt);
1062 PETSC_EXTERN PetscErrorCode TSAdaptCandidateAdd(TSAdapt, const char[], PetscInt, PetscInt, PetscReal, PetscReal, PetscBool);
1063 PETSC_EXTERN PetscErrorCode TSAdaptCandidatesGet(TSAdapt, PetscInt *, const PetscInt **, const PetscInt **, const PetscReal **, const PetscReal **);
1064 PETSC_EXTERN PetscErrorCode TSAdaptChoose(TSAdapt, TS, PetscReal, PetscInt *, PetscReal *, PetscBool *);
1065 PETSC_EXTERN PetscErrorCode TSAdaptCheckStage(TSAdapt, TS, PetscReal, Vec, PetscBool *);
1066 PETSC_EXTERN PetscErrorCode TSAdaptView(TSAdapt, PetscViewer);
1067 PETSC_EXTERN PetscErrorCode TSAdaptLoad(TSAdapt, PetscViewer);
1068 PETSC_EXTERN PetscErrorCode TSAdaptSetFromOptions(TSAdapt, PetscOptionItems *);
1069 PETSC_EXTERN PetscErrorCode TSAdaptReset(TSAdapt);
1070 PETSC_EXTERN PetscErrorCode TSAdaptDestroy(TSAdapt *);
1071 PETSC_EXTERN PetscErrorCode TSAdaptSetMonitor(TSAdapt, PetscBool);
1072 PETSC_EXTERN PetscErrorCode TSAdaptSetAlwaysAccept(TSAdapt, PetscBool);
1073 PETSC_EXTERN PetscErrorCode TSAdaptSetSafety(TSAdapt, PetscReal, PetscReal);
1074 PETSC_EXTERN PetscErrorCode TSAdaptGetSafety(TSAdapt, PetscReal *, PetscReal *);
1075 PETSC_EXTERN PetscErrorCode TSAdaptSetMaxIgnore(TSAdapt, PetscReal);
1076 PETSC_EXTERN PetscErrorCode TSAdaptGetMaxIgnore(TSAdapt, PetscReal *);
1077 PETSC_EXTERN PetscErrorCode TSAdaptSetClip(TSAdapt, PetscReal, PetscReal);
1078 PETSC_EXTERN PetscErrorCode TSAdaptGetClip(TSAdapt, PetscReal *, PetscReal *);
1079 PETSC_EXTERN PetscErrorCode TSAdaptSetScaleSolveFailed(TSAdapt, PetscReal);
1080 PETSC_EXTERN PetscErrorCode TSAdaptGetScaleSolveFailed(TSAdapt, PetscReal *);
1081 PETSC_EXTERN PetscErrorCode TSAdaptSetStepLimits(TSAdapt, PetscReal, PetscReal);
1082 PETSC_EXTERN PetscErrorCode TSAdaptGetStepLimits(TSAdapt, PetscReal *, PetscReal *);
1083 PETSC_EXTERN PetscErrorCode TSAdaptSetCheckStage(TSAdapt, PetscErrorCode (*)(TSAdapt, TS, PetscReal, Vec, PetscBool *));
1084 PETSC_EXTERN PetscErrorCode TSAdaptHistorySetHistory(TSAdapt, PetscInt n, PetscReal hist[], PetscBool);
1085 PETSC_EXTERN PetscErrorCode TSAdaptHistorySetTrajectory(TSAdapt, TSTrajectory, PetscBool);
1086 PETSC_EXTERN PetscErrorCode TSAdaptHistoryGetStep(TSAdapt, PetscInt, PetscReal *, PetscReal *);
1087 PETSC_EXTERN PetscErrorCode TSAdaptSetTimeStepIncreaseDelay(TSAdapt, PetscInt);
1088 PETSC_EXTERN PetscErrorCode TSAdaptDSPSetFilter(TSAdapt, const char *);
1089 PETSC_EXTERN PetscErrorCode TSAdaptDSPSetPID(TSAdapt, PetscReal, PetscReal, PetscReal);
1090 
1091 /*S
1092    TSGLLEAdapt - Abstract object that manages time-step adaptivity for `TSGLLE`
1093 
1094    Level: beginner
1095 
1096    Developer Note:
1097    This functionality should be replaced by the `TSAdapt`.
1098 
1099 .seealso: [](ch_ts), `TS`, `TSGLLE`, `TSGLLEAdaptCreate()`, `TSGLLEAdaptType`
1100 S*/
1101 typedef struct _p_TSGLLEAdapt *TSGLLEAdapt;
1102 
1103 /*J
1104    TSGLLEAdaptType - String with the name of `TSGLLEAdapt` scheme
1105 
1106    Level: beginner
1107 
1108    Developer Note:
1109    This functionality should be replaced by the `TSAdaptType`.
1110 
1111 .seealso: [](ch_ts), `TSGLLEAdaptSetType()`, `TS`
1112 J*/
1113 typedef const char *TSGLLEAdaptType;
1114 #define TSGLLEADAPT_NONE "none"
1115 #define TSGLLEADAPT_SIZE "size"
1116 #define TSGLLEADAPT_BOTH "both"
1117 
1118 PETSC_EXTERN PetscErrorCode TSGLLEAdaptRegister(const char[], PetscErrorCode (*)(TSGLLEAdapt));
1119 PETSC_EXTERN PetscErrorCode TSGLLEAdaptInitializePackage(void);
1120 PETSC_EXTERN PetscErrorCode TSGLLEAdaptFinalizePackage(void);
1121 PETSC_EXTERN PetscErrorCode TSGLLEAdaptCreate(MPI_Comm, TSGLLEAdapt *);
1122 PETSC_EXTERN PetscErrorCode TSGLLEAdaptSetType(TSGLLEAdapt, TSGLLEAdaptType);
1123 PETSC_EXTERN PetscErrorCode TSGLLEAdaptSetOptionsPrefix(TSGLLEAdapt, const char[]);
1124 PETSC_EXTERN PetscErrorCode TSGLLEAdaptChoose(TSGLLEAdapt, PetscInt, const PetscInt[], const PetscReal[], const PetscReal[], PetscInt, PetscReal, PetscReal, PetscInt *, PetscReal *, PetscBool *);
1125 PETSC_EXTERN PetscErrorCode TSGLLEAdaptView(TSGLLEAdapt, PetscViewer);
1126 PETSC_EXTERN PetscErrorCode TSGLLEAdaptSetFromOptions(TSGLLEAdapt, PetscOptionItems *);
1127 PETSC_EXTERN PetscErrorCode TSGLLEAdaptDestroy(TSGLLEAdapt *);
1128 
1129 /*J
1130    TSGLLEAcceptType - String with the name of `TSGLLEAccept` scheme
1131 
1132    Level: beginner
1133 
1134 .seealso: [](ch_ts), `TSGLLESetAcceptType()`, `TS`, `TSGLLEAccept`
1135 J*/
1136 typedef const char *TSGLLEAcceptType;
1137 #define TSGLLEACCEPT_ALWAYS "always"
1138 
1139 /*S
1140   TSGLLEAcceptFn - A prototype of a `TS` accept function that would be passed to `TSGLLEAcceptRegister()`
1141 
1142   Calling Sequence:
1143 + ts  - timestep context
1144 . nt - time to end of solution time
1145 . h - the proposed step-size
1146 . enorm - unknown
1147 - accept - output, if the proposal is accepted
1148 
1149   Level: beginner
1150 
1151   Note:
1152   The deprecated `TSGLLEAcceptFunction` still works as a replacement for `TSGLLEAcceptFn` *
1153 
1154 .seealso: [](ch_ts), `TS`, `TSSetRHSFunction()`, `DMTSSetRHSFunction()`, `TSIFunctionFn`,
1155 `TSIJacobianFn`, `TSRHSJacobianFn`, `TSGLLEAcceptRegister()`
1156 S*/
1157 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSGLLEAcceptFn)(TS ts, PetscReal nt, PetscReal h, const PetscReal enorm[], PetscBool *accept);
1158 
1159 PETSC_EXTERN_TYPEDEF typedef TSGLLEAcceptFn *TSGLLEAcceptFunction;
1160 
1161 PETSC_EXTERN PetscErrorCode TSGLLEAcceptRegister(const char[], TSGLLEAcceptFn *);
1162 
1163 /*J
1164   TSGLLEType - string with the name of a General Linear `TSGLLE` type
1165 
1166   Level: beginner
1167 
1168 .seealso: [](ch_ts), `TS`, `TSGLLE`, `TSGLLESetType()`, `TSGLLERegister()`, `TSGLLEAccept`
1169 J*/
1170 typedef const char *TSGLLEType;
1171 #define TSGLLE_IRKS "irks"
1172 
1173 PETSC_EXTERN PetscErrorCode TSGLLERegister(const char[], PetscErrorCode (*)(TS));
1174 PETSC_EXTERN PetscErrorCode TSGLLEInitializePackage(void);
1175 PETSC_EXTERN PetscErrorCode TSGLLEFinalizePackage(void);
1176 PETSC_EXTERN PetscErrorCode TSGLLESetType(TS, TSGLLEType);
1177 PETSC_EXTERN PetscErrorCode TSGLLEGetAdapt(TS, TSGLLEAdapt *);
1178 PETSC_EXTERN PetscErrorCode TSGLLESetAcceptType(TS, TSGLLEAcceptType);
1179 
1180 /*J
1181    TSEIMEXType - String with the name of an Extrapolated IMEX `TSEIMEX` type
1182 
1183    Level: beginner
1184 
1185 .seealso: [](ch_ts), `TSEIMEXSetType()`, `TS`, `TSEIMEX`, `TSEIMEXRegister()`
1186 J*/
1187 #define TSEIMEXType char *
1188 
1189 PETSC_EXTERN PetscErrorCode TSEIMEXSetMaxRows(TS ts, PetscInt);
1190 PETSC_EXTERN PetscErrorCode TSEIMEXSetRowCol(TS ts, PetscInt, PetscInt);
1191 PETSC_EXTERN PetscErrorCode TSEIMEXSetOrdAdapt(TS, PetscBool);
1192 
1193 /*J
1194    TSRKType - String with the name of a Runge-Kutta `TSRK` type
1195 
1196    Level: beginner
1197 
1198 .seealso: [](ch_ts), `TS`, `TSRKSetType()`, `TS`, `TSRK`, `TSRKRegister()`
1199 J*/
1200 typedef const char *TSRKType;
1201 #define TSRK1FE "1fe"
1202 #define TSRK2A  "2a"
1203 #define TSRK2B  "2b"
1204 #define TSRK3   "3"
1205 #define TSRK3BS "3bs"
1206 #define TSRK4   "4"
1207 #define TSRK5F  "5f"
1208 #define TSRK5DP "5dp"
1209 #define TSRK5BS "5bs"
1210 #define TSRK6VR "6vr"
1211 #define TSRK7VR "7vr"
1212 #define TSRK8VR "8vr"
1213 
1214 PETSC_EXTERN PetscErrorCode TSRKGetOrder(TS, PetscInt *);
1215 PETSC_EXTERN PetscErrorCode TSRKGetType(TS, TSRKType *);
1216 PETSC_EXTERN PetscErrorCode TSRKSetType(TS, TSRKType);
1217 PETSC_EXTERN PetscErrorCode TSRKGetTableau(TS, PetscInt *, const PetscReal **, const PetscReal **, const PetscReal **, const PetscReal **, PetscInt *, const PetscReal **, PetscBool *);
1218 PETSC_EXTERN PetscErrorCode TSRKSetMultirate(TS, PetscBool);
1219 PETSC_EXTERN PetscErrorCode TSRKGetMultirate(TS, PetscBool *);
1220 PETSC_EXTERN PetscErrorCode TSRKRegister(TSRKType, PetscInt, PetscInt, const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], PetscInt, const PetscReal[]);
1221 PETSC_EXTERN PetscErrorCode TSRKInitializePackage(void);
1222 PETSC_EXTERN PetscErrorCode TSRKFinalizePackage(void);
1223 PETSC_EXTERN PetscErrorCode TSRKRegisterDestroy(void);
1224 
1225 /*J
1226    TSMPRKType - String with the name of a partitioned Runge-Kutta `TSMPRK` type
1227 
1228    Level: beginner
1229 
1230 .seealso: [](ch_ts), `TSMPRKSetType()`, `TS`, `TSMPRK`, `TSMPRKRegister()`
1231 J*/
1232 typedef const char *TSMPRKType;
1233 #define TSMPRK2A22 "2a22"
1234 #define TSMPRK2A23 "2a23"
1235 #define TSMPRK2A32 "2a32"
1236 #define TSMPRK2A33 "2a33"
1237 #define TSMPRKP2   "p2"
1238 #define TSMPRKP3   "p3"
1239 
1240 PETSC_EXTERN PetscErrorCode TSMPRKGetType(TS ts, TSMPRKType *);
1241 PETSC_EXTERN PetscErrorCode TSMPRKSetType(TS ts, TSMPRKType);
1242 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[]);
1243 PETSC_EXTERN PetscErrorCode TSMPRKInitializePackage(void);
1244 PETSC_EXTERN PetscErrorCode TSMPRKFinalizePackage(void);
1245 PETSC_EXTERN PetscErrorCode TSMPRKRegisterDestroy(void);
1246 
1247 /*J
1248    TSIRKType - String with the name of an implicit Runge-Kutta `TSIRK` type
1249 
1250    Level: beginner
1251 
1252 .seealso: [](ch_ts), `TSIRKSetType()`, `TS`, `TSIRK`, `TSIRKRegister()`
1253 J*/
1254 typedef const char *TSIRKType;
1255 #define TSIRKGAUSS "gauss"
1256 
1257 PETSC_EXTERN PetscErrorCode TSIRKGetType(TS, TSIRKType *);
1258 PETSC_EXTERN PetscErrorCode TSIRKSetType(TS, TSIRKType);
1259 PETSC_EXTERN PetscErrorCode TSIRKGetNumStages(TS, PetscInt *);
1260 PETSC_EXTERN PetscErrorCode TSIRKSetNumStages(TS, PetscInt);
1261 PETSC_EXTERN PetscErrorCode TSIRKRegister(const char[], PetscErrorCode (*function)(TS));
1262 PETSC_EXTERN PetscErrorCode TSIRKTableauCreate(TS, PetscInt, const PetscReal *, const PetscReal *, const PetscReal *, const PetscReal *, const PetscScalar *, const PetscScalar *, const PetscScalar *);
1263 PETSC_EXTERN PetscErrorCode TSIRKInitializePackage(void);
1264 PETSC_EXTERN PetscErrorCode TSIRKFinalizePackage(void);
1265 PETSC_EXTERN PetscErrorCode TSIRKRegisterDestroy(void);
1266 
1267 /*J
1268    TSGLEEType - String with the name of a General Linear with Error Estimation `TSGLEE` type
1269 
1270    Level: beginner
1271 
1272 .seealso: [](ch_ts), `TSGLEESetType()`, `TS`, `TSGLEE`, `TSGLEERegister()`
1273 J*/
1274 typedef const char *TSGLEEType;
1275 #define TSGLEEi1      "BE1"
1276 #define TSGLEE23      "23"
1277 #define TSGLEE24      "24"
1278 #define TSGLEE25I     "25i"
1279 #define TSGLEE35      "35"
1280 #define TSGLEEEXRK2A  "exrk2a"
1281 #define TSGLEERK32G1  "rk32g1"
1282 #define TSGLEERK285EX "rk285ex"
1283 
1284 /*J
1285    TSGLEEMode - String with the mode of error estimation for a General Linear with Error Estimation `TSGLEE` type
1286 
1287    Level: beginner
1288 
1289 .seealso: [](ch_ts), `TSGLEESetMode()`, `TS`, `TSGLEE`, `TSGLEERegister()`
1290 J*/
1291 PETSC_EXTERN PetscErrorCode TSGLEEGetType(TS ts, TSGLEEType *);
1292 PETSC_EXTERN PetscErrorCode TSGLEESetType(TS ts, TSGLEEType);
1293 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[]);
1294 PETSC_EXTERN PetscErrorCode TSGLEERegisterAll(void);
1295 PETSC_EXTERN PetscErrorCode TSGLEEFinalizePackage(void);
1296 PETSC_EXTERN PetscErrorCode TSGLEEInitializePackage(void);
1297 PETSC_EXTERN PetscErrorCode TSGLEERegisterDestroy(void);
1298 
1299 /*J
1300    TSARKIMEXType - String with the name of an Additive Runge-Kutta IMEX `TSARKIMEX` type
1301 
1302    Level: beginner
1303 
1304 .seealso: [](ch_ts), `TSARKIMEXSetType()`, `TS`, `TSARKIMEX`, `TSARKIMEXRegister()`
1305 J*/
1306 typedef const char *TSARKIMEXType;
1307 #define TSARKIMEX1BEE   "1bee"
1308 #define TSARKIMEXA2     "a2"
1309 #define TSARKIMEXL2     "l2"
1310 #define TSARKIMEXARS122 "ars122"
1311 #define TSARKIMEX2C     "2c"
1312 #define TSARKIMEX2D     "2d"
1313 #define TSARKIMEX2E     "2e"
1314 #define TSARKIMEXPRSSP2 "prssp2"
1315 #define TSARKIMEX3      "3"
1316 #define TSARKIMEXBPR3   "bpr3"
1317 #define TSARKIMEXARS443 "ars443"
1318 #define TSARKIMEX4      "4"
1319 #define TSARKIMEX5      "5"
1320 PETSC_EXTERN PetscErrorCode TSARKIMEXGetType(TS ts, TSARKIMEXType *);
1321 PETSC_EXTERN PetscErrorCode TSARKIMEXSetType(TS ts, TSARKIMEXType);
1322 PETSC_EXTERN PetscErrorCode TSARKIMEXSetFullyImplicit(TS, PetscBool);
1323 PETSC_EXTERN PetscErrorCode TSARKIMEXGetFullyImplicit(TS, PetscBool *);
1324 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[]);
1325 PETSC_EXTERN PetscErrorCode TSARKIMEXInitializePackage(void);
1326 PETSC_EXTERN PetscErrorCode TSARKIMEXFinalizePackage(void);
1327 PETSC_EXTERN PetscErrorCode TSARKIMEXRegisterDestroy(void);
1328 
1329 /*J
1330    TSDIRKType - String with the name of a Diagonally Implicit Runge-Kutta `TSDIRK` type
1331 
1332    Level: beginner
1333 
1334 .seealso: [](ch_ts), `TSDIRKSetType()`, `TS`, `TSDIRK`, `TSDIRKRegister()`
1335 J*/
1336 typedef const char *TSDIRKType;
1337 #define TSDIRKS212      "s212"
1338 #define TSDIRKES122SAL  "es122sal"
1339 #define TSDIRKES213SAL  "es213sal"
1340 #define TSDIRKES324SAL  "es324sal"
1341 #define TSDIRKES325SAL  "es325sal"
1342 #define TSDIRK657A      "657a"
1343 #define TSDIRKES648SA   "es648sa"
1344 #define TSDIRK658A      "658a"
1345 #define TSDIRKS659A     "s659a"
1346 #define TSDIRK7510SAL   "7510sal"
1347 #define TSDIRKES7510SA  "es7510sa"
1348 #define TSDIRK759A      "759a"
1349 #define TSDIRKS7511SAL  "s7511sal"
1350 #define TSDIRK8614A     "8614a"
1351 #define TSDIRK8616SAL   "8616sal"
1352 #define TSDIRKES8516SAL "es8516sal"
1353 PETSC_EXTERN PetscErrorCode TSDIRKGetType(TS ts, TSDIRKType *);
1354 PETSC_EXTERN PetscErrorCode TSDIRKSetType(TS ts, TSDIRKType);
1355 PETSC_EXTERN PetscErrorCode TSDIRKRegister(TSDIRKType, PetscInt, PetscInt, const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], PetscInt, const PetscReal[]);
1356 
1357 /*J
1358    TSRosWType - String with the name of a Rosenbrock-W `TSROSW` type
1359 
1360    Level: beginner
1361 
1362 .seealso: [](ch_ts), `TSRosWSetType()`, `TS`, `TSROSW`, `TSRosWRegister()`
1363 J*/
1364 typedef const char *TSRosWType;
1365 #define TSROSW2M          "2m"
1366 #define TSROSW2P          "2p"
1367 #define TSROSWRA3PW       "ra3pw"
1368 #define TSROSWRA34PW2     "ra34pw2"
1369 #define TSROSWRODAS3      "rodas3"
1370 #define TSROSWSANDU3      "sandu3"
1371 #define TSROSWASSP3P3S1C  "assp3p3s1c"
1372 #define TSROSWLASSP3P4S2C "lassp3p4s2c"
1373 #define TSROSWLLSSP3P4S2C "llssp3p4s2c"
1374 #define TSROSWARK3        "ark3"
1375 #define TSROSWTHETA1      "theta1"
1376 #define TSROSWTHETA2      "theta2"
1377 #define TSROSWGRK4T       "grk4t"
1378 #define TSROSWSHAMP4      "shamp4"
1379 #define TSROSWVELDD4      "veldd4"
1380 #define TSROSW4L          "4l"
1381 
1382 PETSC_EXTERN PetscErrorCode TSRosWGetType(TS, TSRosWType *);
1383 PETSC_EXTERN PetscErrorCode TSRosWSetType(TS, TSRosWType);
1384 PETSC_EXTERN PetscErrorCode TSRosWSetRecomputeJacobian(TS, PetscBool);
1385 PETSC_EXTERN PetscErrorCode TSRosWRegister(TSRosWType, PetscInt, PetscInt, const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], PetscInt, const PetscReal[]);
1386 PETSC_EXTERN PetscErrorCode TSRosWRegisterRos4(TSRosWType, PetscReal, PetscReal, PetscReal, PetscReal, PetscReal);
1387 PETSC_EXTERN PetscErrorCode TSRosWInitializePackage(void);
1388 PETSC_EXTERN PetscErrorCode TSRosWFinalizePackage(void);
1389 PETSC_EXTERN PetscErrorCode TSRosWRegisterDestroy(void);
1390 
1391 PETSC_EXTERN PetscErrorCode TSBDFSetOrder(TS, PetscInt);
1392 PETSC_EXTERN PetscErrorCode TSBDFGetOrder(TS, PetscInt *);
1393 
1394 /*J
1395   TSBasicSymplecticType - String with the name of a basic symplectic integration `TSBASICSYMPLECTIC` type
1396 
1397   Level: beginner
1398 
1399 .seealso: [](ch_ts), `TSBasicSymplecticSetType()`, `TS`, `TSBASICSYMPLECTIC`, `TSBasicSymplecticRegister()`
1400 J*/
1401 typedef const char *TSBasicSymplecticType;
1402 #define TSBASICSYMPLECTICSIEULER   "1"
1403 #define TSBASICSYMPLECTICVELVERLET "2"
1404 #define TSBASICSYMPLECTIC3         "3"
1405 #define TSBASICSYMPLECTIC4         "4"
1406 PETSC_EXTERN PetscErrorCode TSBasicSymplecticSetType(TS, TSBasicSymplecticType);
1407 PETSC_EXTERN PetscErrorCode TSBasicSymplecticGetType(TS, TSBasicSymplecticType *);
1408 PETSC_EXTERN PetscErrorCode TSBasicSymplecticRegister(TSBasicSymplecticType, PetscInt, PetscInt, PetscReal[], PetscReal[]);
1409 PETSC_EXTERN PetscErrorCode TSBasicSymplecticRegisterAll(void);
1410 PETSC_EXTERN PetscErrorCode TSBasicSymplecticInitializePackage(void);
1411 PETSC_EXTERN PetscErrorCode TSBasicSymplecticFinalizePackage(void);
1412 PETSC_EXTERN PetscErrorCode TSBasicSymplecticRegisterDestroy(void);
1413 
1414 /*J
1415   TSDISCGRAD - The Discrete Gradient integrator is a timestepper for Hamiltonian systems designed to conserve the first integral (energy),
1416   but also has the property for some systems of monotonicity in a functional.
1417 
1418   Level: beginner
1419 
1420 .seealso: [](ch_ts), `TS`, TSDiscGradSetFormulation()`, `TSDiscGradGetFormulation()`
1421 J*/
1422 PETSC_EXTERN PetscErrorCode TSDiscGradSetFormulation(TS, PetscErrorCode (*)(TS, PetscReal, Vec, Mat, void *), PetscErrorCode (*)(TS, PetscReal, Vec, PetscScalar *, void *), PetscErrorCode (*)(TS, PetscReal, Vec, Vec, void *), void *);
1423 PETSC_EXTERN PetscErrorCode TSDiscGradGetFormulation(TS, PetscErrorCode (**)(TS, PetscReal, Vec, Mat, void *), PetscErrorCode (**)(TS, PetscReal, Vec, PetscScalar *, void *), PetscErrorCode (**)(TS, PetscReal, Vec, Vec, void *), void *);
1424 PETSC_EXTERN PetscErrorCode TSDiscGradIsGonzalez(TS, PetscBool *);
1425 PETSC_EXTERN PetscErrorCode TSDiscGradUseGonzalez(TS, PetscBool);
1426 
1427 /*
1428        PETSc interface to Sundials
1429 */
1430 #ifdef PETSC_HAVE_SUNDIALS2
1431 typedef enum {
1432   SUNDIALS_ADAMS = 1,
1433   SUNDIALS_BDF   = 2
1434 } TSSundialsLmmType;
1435 PETSC_EXTERN const char *const TSSundialsLmmTypes[];
1436 typedef enum {
1437   SUNDIALS_MODIFIED_GS  = 1,
1438   SUNDIALS_CLASSICAL_GS = 2
1439 } TSSundialsGramSchmidtType;
1440 PETSC_EXTERN const char *const TSSundialsGramSchmidtTypes[];
1441 
1442 PETSC_EXTERN PetscErrorCode TSSundialsSetType(TS, TSSundialsLmmType);
1443 PETSC_EXTERN PetscErrorCode TSSundialsGetPC(TS, PC *);
1444 PETSC_EXTERN PetscErrorCode TSSundialsSetTolerance(TS, PetscReal, PetscReal);
1445 PETSC_EXTERN PetscErrorCode TSSundialsSetMinTimeStep(TS, PetscReal);
1446 PETSC_EXTERN PetscErrorCode TSSundialsSetMaxTimeStep(TS, PetscReal);
1447 PETSC_EXTERN PetscErrorCode TSSundialsGetIterations(TS, PetscInt *, PetscInt *);
1448 PETSC_EXTERN PetscErrorCode TSSundialsSetGramSchmidtType(TS, TSSundialsGramSchmidtType);
1449 PETSC_EXTERN PetscErrorCode TSSundialsSetGMRESRestart(TS, PetscInt);
1450 PETSC_EXTERN PetscErrorCode TSSundialsSetLinearTolerance(TS, PetscReal);
1451 PETSC_EXTERN PetscErrorCode TSSundialsMonitorInternalSteps(TS, PetscBool);
1452 PETSC_EXTERN PetscErrorCode TSSundialsSetMaxl(TS, PetscInt);
1453 PETSC_EXTERN PetscErrorCode TSSundialsSetMaxord(TS, PetscInt);
1454 PETSC_EXTERN PetscErrorCode TSSundialsSetUseDense(TS, PetscBool);
1455 #endif
1456 
1457 PETSC_EXTERN PetscErrorCode TSThetaSetTheta(TS, PetscReal);
1458 PETSC_EXTERN PetscErrorCode TSThetaGetTheta(TS, PetscReal *);
1459 PETSC_EXTERN PetscErrorCode TSThetaGetEndpoint(TS, PetscBool *);
1460 PETSC_EXTERN PetscErrorCode TSThetaSetEndpoint(TS, PetscBool);
1461 
1462 PETSC_EXTERN PetscErrorCode TSAlphaSetRadius(TS, PetscReal);
1463 PETSC_EXTERN PetscErrorCode TSAlphaSetParams(TS, PetscReal, PetscReal, PetscReal);
1464 PETSC_EXTERN PetscErrorCode TSAlphaGetParams(TS, PetscReal *, PetscReal *, PetscReal *);
1465 
1466 PETSC_EXTERN PetscErrorCode TSAlpha2SetRadius(TS, PetscReal);
1467 PETSC_EXTERN PetscErrorCode TSAlpha2SetParams(TS, PetscReal, PetscReal, PetscReal, PetscReal);
1468 PETSC_EXTERN PetscErrorCode TSAlpha2GetParams(TS, PetscReal *, PetscReal *, PetscReal *, PetscReal *);
1469 
1470 /*S
1471   TSAlpha2PredictorFn - A callback to set the predictor (i.e., the initial guess for the nonlinear solver) in
1472   a second-order generalized-alpha time integrator.
1473 
1474   Calling Sequence:
1475 + ts   - the `TS` context obtained from `TSCreate()`
1476 . X0   - the previous time step's state vector
1477 . V0   - the previous time step's first derivative of the state vector
1478 . A0   - the previous time step's second derivative of the state vector
1479 . X1   - the vector into which the initial guess for the current time step will be written
1480 - ctx  - [optional] user-defined context for the predictor evaluation routine (may be `NULL`)
1481 
1482   Level: intermediate
1483 
1484   Note:
1485   The deprecated `TSAlpha2Predictor` still works as a replacement for `TSAlpha2PredictorFn` *.
1486 
1487 .seealso: [](ch_ts), `TS`, `TSAlpha2SetPredictor()`
1488 S*/
1489 PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSAlpha2PredictorFn)(TS ts, Vec X0, Vec V0, Vec A0, Vec X1, void *ctx);
1490 
1491 PETSC_EXTERN_TYPEDEF typedef TSAlpha2PredictorFn *TSAlpha2Predictor;
1492 
1493 PETSC_EXTERN PetscErrorCode TSAlpha2SetPredictor(TS, TSAlpha2PredictorFn *, void *ctx);
1494 
1495 PETSC_EXTERN PetscErrorCode TSSetDM(TS, DM);
1496 PETSC_EXTERN PetscErrorCode TSGetDM(TS, DM *);
1497 
1498 PETSC_EXTERN PetscErrorCode SNESTSFormFunction(SNES, Vec, Vec, void *);
1499 PETSC_EXTERN PetscErrorCode SNESTSFormJacobian(SNES, Vec, Mat, Mat, void *);
1500 
1501 PETSC_EXTERN PetscErrorCode TSRHSJacobianTest(TS, PetscBool *);
1502 PETSC_EXTERN PetscErrorCode TSRHSJacobianTestTranspose(TS, PetscBool *);
1503 
1504 PETSC_EXTERN PetscErrorCode TSGetComputeInitialCondition(TS, PetscErrorCode (**)(TS, Vec));
1505 PETSC_EXTERN PetscErrorCode TSSetComputeInitialCondition(TS, PetscErrorCode (*)(TS, Vec));
1506 PETSC_EXTERN PetscErrorCode TSComputeInitialCondition(TS, Vec);
1507 PETSC_EXTERN PetscErrorCode TSGetComputeExactError(TS, PetscErrorCode (**)(TS, Vec, Vec));
1508 PETSC_EXTERN PetscErrorCode TSSetComputeExactError(TS, PetscErrorCode (*)(TS, Vec, Vec));
1509 PETSC_EXTERN PetscErrorCode TSComputeExactError(TS, Vec, Vec);
1510 PETSC_EXTERN PetscErrorCode PetscConvEstUseTS(PetscConvEst, PetscBool);
1511 
1512 PETSC_EXTERN PetscErrorCode TSSetMatStructure(TS, MatStructure);
1513