Actual source code: petscts.h

  1: /*
  2:    User interface for the timestepping package. This package
  3:    is for use in solving time-dependent PDEs.
  4: */
  5: #pragma once

  7: #include <petscsnes.h>
  8: #include <petscconvest.h>

 10: /*I <petscts.h> I*/

 12: /* SUBMANSEC = TS */

 14: /*S
 15:    TS - Abstract PETSc object that manages integrating an ODE.

 17:    Level: beginner

 19: .seealso: [](integrator_table), [](ch_ts), `TSCreate()`, `TSSetType()`, `TSType`, `SNES`, `KSP`, `PC`, `TSDestroy()`
 20: S*/
 21: typedef struct _p_TS *TS;

 23: /*J
 24:    TSType - String with the name of a PETSc `TS` method. These are all the time/ODE integrators that PETSc provides.

 26:    Level: beginner

 28:    Note:
 29:    Use `TSSetType()` or the options database key `-ts_type` to set the ODE integrator method to use with a given `TS` object

 31: .seealso: [](integrator_table), [](ch_ts), `TSSetType()`, `TS`, `TSRegister()`
 32: J*/
 33: typedef const char *TSType;
 34: #define TSEULER           "euler"
 35: #define TSBEULER          "beuler"
 36: #define TSBASICSYMPLECTIC "basicsymplectic"
 37: #define TSPSEUDO          "pseudo"
 38: #define TSCN              "cn"
 39: #define TSSUNDIALS        "sundials"
 40: #define TSRK              "rk"
 41: #define TSPYTHON          "python"
 42: #define TSTHETA           "theta"
 43: #define TSALPHA           "alpha"
 44: #define TSALPHA2          "alpha2"
 45: #define TSGLLE            "glle"
 46: #define TSGLEE            "glee"
 47: #define TSSSP             "ssp"
 48: #define TSARKIMEX         "arkimex"
 49: #define TSROSW            "rosw"
 50: #define TSEIMEX           "eimex"
 51: #define TSMIMEX           "mimex"
 52: #define TSBDF             "bdf"
 53: #define TSRADAU5          "radau5"
 54: #define TSMPRK            "mprk"
 55: #define TSDISCGRAD        "discgrad"
 56: #define TSIRK             "irk"
 57: #define TSDIRK            "dirk"

 59: /*E
 60:    TSProblemType - Determines the type of problem this `TS` object is to be used to solve

 62:    Values:
 63:  + `TS_LINEAR`    - a linear ODE or DAE
 64:  - `TS_NONLINEAR` - a nonlinear ODE or DAE

 66:    Level: beginner

 68: .seealso: [](ch_ts), `TS`, `TSCreate()`
 69: E*/
 70: typedef enum {
 71:   TS_LINEAR,
 72:   TS_NONLINEAR
 73: } TSProblemType;

 75: /*E
 76:    TSEquationType - type of `TS` problem that is solved

 78:    Values:
 79: +  `TS_EQ_UNSPECIFIED` - (default)
 80: .  `TS_EQ_EXPLICIT`    - {ODE and DAE index 1, 2, 3, HI} F(t,U,U_t) := M(t) U_t - G(U,t) = 0
 81: -  `TS_EQ_IMPLICIT`    - {ODE and DAE index 1, 2, 3, HI} F(t,U,U_t) = 0

 83:    Level: beginner

 85: .seealso: [](ch_ts), `TS`, `TSGetEquationType()`, `TSSetEquationType()`
 86: E*/
 87: typedef enum {
 88:   TS_EQ_UNSPECIFIED               = -1,
 89:   TS_EQ_EXPLICIT                  = 0,
 90:   TS_EQ_ODE_EXPLICIT              = 1,
 91:   TS_EQ_DAE_SEMI_EXPLICIT_INDEX1  = 100,
 92:   TS_EQ_DAE_SEMI_EXPLICIT_INDEX2  = 200,
 93:   TS_EQ_DAE_SEMI_EXPLICIT_INDEX3  = 300,
 94:   TS_EQ_DAE_SEMI_EXPLICIT_INDEXHI = 500,
 95:   TS_EQ_IMPLICIT                  = 1000,
 96:   TS_EQ_ODE_IMPLICIT              = 1001,
 97:   TS_EQ_DAE_IMPLICIT_INDEX1       = 1100,
 98:   TS_EQ_DAE_IMPLICIT_INDEX2       = 1200,
 99:   TS_EQ_DAE_IMPLICIT_INDEX3       = 1300,
100:   TS_EQ_DAE_IMPLICIT_INDEXHI      = 1500
101: } TSEquationType;
102: PETSC_EXTERN const char *const *TSEquationTypes;

104: /*E
105:    TSConvergedReason - reason a `TS` method has converged (integrated to the requested time) or not

107:    Values:
108: +  `TS_CONVERGED_ITERATING`          - this only occurs if `TSGetConvergedReason()` is called during the `TSSolve()`
109: .  `TS_CONVERGED_TIME`               - the final time was reached
110: .  `TS_CONVERGED_ITS`                - the maximum number of iterations (time-steps) was reached prior to the final time
111: .  `TS_CONVERGED_USER`               - user requested termination
112: .  `TS_CONVERGED_EVENT`              - user requested termination on event detection
113: .  `TS_CONVERGED_PSEUDO_FATOL`       - stops when function norm decreased by a set amount, used only for `TSPSEUDO`
114: .  `TS_CONVERGED_PSEUDO_FRTOL`       - stops when function norm decreases below a set amount, used only for `TSPSEUDO`
115: .  `TS_DIVERGED_NONLINEAR_SOLVE`     - too many nonlinear solve failures have occurred
116: .  `TS_DIVERGED_STEP_REJECTED`       - too many steps were rejected
117: .  `TSFORWARD_DIVERGED_LINEAR_SOLVE` - tangent linear solve failed
118: -  `TSADJOINT_DIVERGED_LINEAR_SOLVE` - transposed linear solve failed

120:    Level: beginner

122: .seealso: [](ch_ts), `TS`, `TSGetConvergedReason()`
123: E*/
124: typedef enum {
125:   TS_CONVERGED_ITERATING          = 0,
126:   TS_CONVERGED_TIME               = 1,
127:   TS_CONVERGED_ITS                = 2,
128:   TS_CONVERGED_USER               = 3,
129:   TS_CONVERGED_EVENT              = 4,
130:   TS_CONVERGED_PSEUDO_FATOL       = 5,
131:   TS_CONVERGED_PSEUDO_FRTOL       = 6,
132:   TS_DIVERGED_NONLINEAR_SOLVE     = -1,
133:   TS_DIVERGED_STEP_REJECTED       = -2,
134:   TSFORWARD_DIVERGED_LINEAR_SOLVE = -3,
135:   TSADJOINT_DIVERGED_LINEAR_SOLVE = -4
136: } TSConvergedReason;
137: PETSC_EXTERN const char *const *TSConvergedReasons;

139: /*MC
140:    TS_CONVERGED_ITERATING - this only occurs if `TSGetConvergedReason()` is called during the `TSSolve()`

142:    Level: beginner

144: .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSGetAdapt()`
145: M*/

147: /*MC
148:    TS_CONVERGED_TIME - the final time was reached

150:    Level: beginner

152: .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSGetAdapt()`, `TSSetMaxTime()`, `TSGetMaxTime()`, `TSGetSolveTime()`
153: M*/

155: /*MC
156:    TS_CONVERGED_ITS - the maximum number of iterations (time-steps) was reached prior to the final time

158:    Level: beginner

160: .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSGetAdapt()`, `TSSetMaxSteps()`, `TSGetMaxSteps()`
161: M*/

163: /*MC
164:    TS_CONVERGED_USER - user requested termination

166:    Level: beginner

168: .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSSetConvergedReason()`
169: M*/

171: /*MC
172:    TS_CONVERGED_EVENT - user requested termination on event detection

174:    Level: beginner

176: .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSSetConvergedReason()`
177: M*/

179: /*MC
180:    TS_CONVERGED_PSEUDO_FRTOL - stops when function norm decreased by a set amount, used only for `TSPSEUDO`

182:    Options Database Key:
183: .   -ts_pseudo_frtol <rtol> - use specified rtol

185:    Level: beginner

187: .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSSetConvergedReason()`, `TS_CONVERGED_PSEUDO_FATOL`
188: M*/

190: /*MC
191:    TS_CONVERGED_PSEUDO_FATOL - stops when function norm decreases below a set amount, used only for `TSPSEUDO`

193:    Options Database Key:
194: .   -ts_pseudo_fatol <atol> - use specified atol

196:    Level: beginner

198: .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSSetConvergedReason()`, `TS_CONVERGED_PSEUDO_FRTOL`
199: M*/

201: /*MC
202:    TS_DIVERGED_NONLINEAR_SOLVE - too many nonlinear solves failed

204:    Level: beginner

206:    Note:
207:    See `TSSetMaxSNESFailures()` for how to allow more nonlinear solver failures.

209: .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSGetAdapt()`, `TSGetSNES()`, `SNESGetConvergedReason()`, `TSSetMaxSNESFailures()`
210: M*/

212: /*MC
213:    TS_DIVERGED_STEP_REJECTED - too many steps were rejected

215:    Level: beginner

217:    Notes:
218:    See `TSSetMaxStepRejections()` for how to allow more step rejections.

220: .seealso: [](ch_ts), `TS`, `TSSolve()`, `TSGetConvergedReason()`, `TSGetAdapt()`, `TSSetMaxStepRejections()`
221: M*/

223: /*E
224:    TSExactFinalTimeOption - option for handling of final time step

226:    Values:
227: +  `TS_EXACTFINALTIME_STEPOVER`    - Don't do anything if requested final time is exceeded
228: .  `TS_EXACTFINALTIME_INTERPOLATE` - Interpolate back to final time
229: -  `TS_EXACTFINALTIME_MATCHSTEP`   - Adapt final time step to match the final time requested

231:    Level: beginner

233: .seealso: [](ch_ts), `TS`, `TSGetConvergedReason()`, `TSSetExactFinalTime()`, `TSGetExactFinalTime()`
234: E*/
235: typedef enum {
236:   TS_EXACTFINALTIME_UNSPECIFIED = 0,
237:   TS_EXACTFINALTIME_STEPOVER    = 1,
238:   TS_EXACTFINALTIME_INTERPOLATE = 2,
239:   TS_EXACTFINALTIME_MATCHSTEP   = 3
240: } TSExactFinalTimeOption;
241: PETSC_EXTERN const char *const TSExactFinalTimeOptions[];

243: /* Logging support */
244: PETSC_EXTERN PetscClassId TS_CLASSID;
245: PETSC_EXTERN PetscClassId DMTS_CLASSID;
246: PETSC_EXTERN PetscClassId TSADAPT_CLASSID;

248: PETSC_EXTERN PetscErrorCode TSInitializePackage(void);
249: PETSC_EXTERN PetscErrorCode TSFinalizePackage(void);

251: PETSC_EXTERN PetscErrorCode TSCreate(MPI_Comm, TS *);
252: PETSC_EXTERN PetscErrorCode TSClone(TS, TS *);
253: PETSC_EXTERN PetscErrorCode TSDestroy(TS *);

255: PETSC_EXTERN PetscErrorCode TSSetProblemType(TS, TSProblemType);
256: PETSC_EXTERN PetscErrorCode TSGetProblemType(TS, TSProblemType *);
257: PETSC_EXTERN PetscErrorCode TSMonitor(TS, PetscInt, PetscReal, Vec);
258: PETSC_EXTERN PetscErrorCode TSMonitorSet(TS, PetscErrorCode (*)(TS, PetscInt, PetscReal, Vec, void *), void *, PetscErrorCode (*)(void **));
259: PETSC_EXTERN PetscErrorCode TSMonitorSetFromOptions(TS, const char[], const char[], const char[], PetscErrorCode (*)(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *), PetscErrorCode (*)(TS, PetscViewerAndFormat *));
260: PETSC_EXTERN PetscErrorCode TSMonitorCancel(TS);

262: PETSC_EXTERN PetscErrorCode TSSetOptionsPrefix(TS, const char[]);
263: PETSC_EXTERN PetscErrorCode TSAppendOptionsPrefix(TS, const char[]);
264: PETSC_EXTERN PetscErrorCode TSGetOptionsPrefix(TS, const char *[]);
265: PETSC_EXTERN PetscErrorCode TSSetFromOptions(TS);
266: PETSC_EXTERN PetscErrorCode TSSetUp(TS);
267: PETSC_EXTERN PetscErrorCode TSReset(TS);

269: PETSC_EXTERN PetscErrorCode TSSetSolution(TS, Vec);
270: PETSC_EXTERN PetscErrorCode TSGetSolution(TS, Vec *);

272: PETSC_EXTERN PetscErrorCode TS2SetSolution(TS, Vec, Vec);
273: PETSC_EXTERN PetscErrorCode TS2GetSolution(TS, Vec *, Vec *);

275: PETSC_EXTERN PetscErrorCode TSGetSolutionComponents(TS, PetscInt *, Vec *);
276: PETSC_EXTERN PetscErrorCode TSGetAuxSolution(TS, Vec *);
277: PETSC_EXTERN PetscErrorCode TSGetTimeError(TS, PetscInt, Vec *);
278: PETSC_EXTERN PetscErrorCode TSSetTimeError(TS, Vec);

280: PETSC_EXTERN PetscErrorCode TSSetRHSJacobianP(TS, Mat, PetscErrorCode (*)(TS, PetscReal, Vec, Mat, void *), void *);
281: PETSC_EXTERN PetscErrorCode TSGetRHSJacobianP(TS, Mat *, PetscErrorCode (**)(TS, PetscReal, Vec, Mat, void *), void **);
282: PETSC_EXTERN PetscErrorCode TSComputeRHSJacobianP(TS, PetscReal, Vec, Mat);
283: PETSC_EXTERN PetscErrorCode TSSetIJacobianP(TS, Mat, PetscErrorCode (*)(TS, PetscReal, Vec, Vec, PetscReal, Mat, void *), void *);
284: PETSC_EXTERN PetscErrorCode TSComputeIJacobianP(TS, PetscReal, Vec, Vec, PetscReal, Mat, PetscBool);
285: PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 5, 0, "TSGetQuadratureTS() then TSComputeRHSJacobianP()", ) PetscErrorCode TSComputeDRDPFunction(TS, PetscReal, Vec, Vec *);
286: PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 5, 0, "TSGetQuadratureTS() then TSComputeRHSJacobian()", ) PetscErrorCode TSComputeDRDUFunction(TS, PetscReal, Vec, Vec *);
287: 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 *);
288: PETSC_EXTERN PetscErrorCode TSComputeIHessianProductFunctionUU(TS, PetscReal, Vec, Vec *, Vec, Vec *);
289: PETSC_EXTERN PetscErrorCode TSComputeIHessianProductFunctionUP(TS, PetscReal, Vec, Vec *, Vec, Vec *);
290: PETSC_EXTERN PetscErrorCode TSComputeIHessianProductFunctionPU(TS, PetscReal, Vec, Vec *, Vec, Vec *);
291: PETSC_EXTERN PetscErrorCode TSComputeIHessianProductFunctionPP(TS, PetscReal, Vec, Vec *, Vec, Vec *);
292: 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 *);
293: PETSC_EXTERN PetscErrorCode TSComputeRHSHessianProductFunctionUU(TS, PetscReal, Vec, Vec *, Vec, Vec *);
294: PETSC_EXTERN PetscErrorCode TSComputeRHSHessianProductFunctionUP(TS, PetscReal, Vec, Vec *, Vec, Vec *);
295: PETSC_EXTERN PetscErrorCode TSComputeRHSHessianProductFunctionPU(TS, PetscReal, Vec, Vec *, Vec, Vec *);
296: PETSC_EXTERN PetscErrorCode TSComputeRHSHessianProductFunctionPP(TS, PetscReal, Vec, Vec *, Vec, Vec *);
297: PETSC_EXTERN PetscErrorCode TSSetCostHessianProducts(TS, PetscInt, Vec *, Vec *, Vec);
298: PETSC_EXTERN PetscErrorCode TSGetCostHessianProducts(TS, PetscInt *, Vec **, Vec **, Vec *);
299: PETSC_EXTERN PetscErrorCode TSComputeSNESJacobian(TS, Vec, Mat, Mat);

301: /*S
302:    TSTrajectory - Abstract PETSc object that stores the trajectory (solution of ODE/DAE at each time step)

304:    Level: advanced

306: .seealso: [](ch_ts), `TS`, `TSSetSaveTrajectory()`, `TSTrajectoryCreate()`, `TSTrajectorySetType()`, `TSTrajectoryDestroy()`, `TSTrajectoryReset()`
307: S*/
308: typedef struct _p_TSTrajectory *TSTrajectory;

310: /*J
311:    TSTrajectoryType - String with the name of a PETSc `TS` trajectory storage method

313:    Level: intermediate

315: .seealso: [](ch_ts), `TS`, `TSSetSaveTrajectory()`, `TSTrajectoryCreate()`, `TSTrajectoryDestroy()`
316: J*/
317: typedef const char *TSTrajectoryType;
318: #define TSTRAJECTORYBASIC         "basic"
319: #define TSTRAJECTORYSINGLEFILE    "singlefile"
320: #define TSTRAJECTORYMEMORY        "memory"
321: #define TSTRAJECTORYVISUALIZATION "visualization"

323: PETSC_EXTERN PetscFunctionList TSTrajectoryList;
324: PETSC_EXTERN PetscClassId      TSTRAJECTORY_CLASSID;
325: PETSC_EXTERN PetscBool         TSTrajectoryRegisterAllCalled;

327: PETSC_EXTERN PetscErrorCode TSSetSaveTrajectory(TS);
328: PETSC_EXTERN PetscErrorCode TSResetTrajectory(TS);
329: PETSC_EXTERN PetscErrorCode TSRemoveTrajectory(TS);

331: PETSC_EXTERN PetscErrorCode TSTrajectoryCreate(MPI_Comm, TSTrajectory *);
332: PETSC_EXTERN PetscErrorCode TSTrajectoryReset(TSTrajectory);
333: PETSC_EXTERN PetscErrorCode TSTrajectoryDestroy(TSTrajectory *);
334: PETSC_EXTERN PetscErrorCode TSTrajectoryView(TSTrajectory, PetscViewer);
335: PETSC_EXTERN PetscErrorCode TSTrajectorySetType(TSTrajectory, TS, TSTrajectoryType);
336: PETSC_EXTERN PetscErrorCode TSTrajectoryGetType(TSTrajectory, TS, TSTrajectoryType *);
337: PETSC_EXTERN PetscErrorCode TSTrajectorySet(TSTrajectory, TS, PetscInt, PetscReal, Vec);
338: PETSC_EXTERN PetscErrorCode TSTrajectoryGet(TSTrajectory, TS, PetscInt, PetscReal *);
339: PETSC_EXTERN PetscErrorCode TSTrajectoryGetVecs(TSTrajectory, TS, PetscInt, PetscReal *, Vec, Vec);
340: PETSC_EXTERN PetscErrorCode TSTrajectoryGetUpdatedHistoryVecs(TSTrajectory, TS, PetscReal, Vec *, Vec *);
341: PETSC_EXTERN PetscErrorCode TSTrajectoryGetNumSteps(TSTrajectory, PetscInt *);
342: PETSC_EXTERN PetscErrorCode TSTrajectoryRestoreUpdatedHistoryVecs(TSTrajectory, Vec *, Vec *);
343: PETSC_EXTERN PetscErrorCode TSTrajectorySetFromOptions(TSTrajectory, TS);
344: PETSC_EXTERN PetscErrorCode TSTrajectoryRegister(const char[], PetscErrorCode (*)(TSTrajectory, TS));
345: PETSC_EXTERN PetscErrorCode TSTrajectoryRegisterAll(void);
346: PETSC_EXTERN PetscErrorCode TSTrajectorySetUp(TSTrajectory, TS);
347: PETSC_EXTERN PetscErrorCode TSTrajectorySetUseHistory(TSTrajectory, PetscBool);
348: PETSC_EXTERN PetscErrorCode TSTrajectorySetMonitor(TSTrajectory, PetscBool);
349: PETSC_EXTERN PetscErrorCode TSTrajectorySetVariableNames(TSTrajectory, const char *const *);
350: PETSC_EXTERN PetscErrorCode TSTrajectorySetTransform(TSTrajectory, PetscErrorCode (*)(void *, Vec, Vec *), PetscErrorCode (*)(void *), void *);
351: PETSC_EXTERN PetscErrorCode TSTrajectorySetSolutionOnly(TSTrajectory, PetscBool);
352: PETSC_EXTERN PetscErrorCode TSTrajectoryGetSolutionOnly(TSTrajectory, PetscBool *);
353: PETSC_EXTERN PetscErrorCode TSTrajectorySetKeepFiles(TSTrajectory, PetscBool);
354: PETSC_EXTERN PetscErrorCode TSTrajectorySetDirname(TSTrajectory, const char[]);
355: PETSC_EXTERN PetscErrorCode TSTrajectorySetFiletemplate(TSTrajectory, const char[]);
356: PETSC_EXTERN PetscErrorCode TSGetTrajectory(TS, TSTrajectory *);

358: typedef enum {
359:   TJ_REVOLVE,
360:   TJ_CAMS,
361:   TJ_PETSC
362: } TSTrajectoryMemoryType;
363: PETSC_EXTERN const char *const TSTrajectoryMemoryTypes[];

365: PETSC_EXTERN PetscErrorCode TSTrajectoryMemorySetType(TSTrajectory, TSTrajectoryMemoryType);
366: PETSC_EXTERN PetscErrorCode TSTrajectorySetMaxCpsRAM(TSTrajectory, PetscInt);
367: PETSC_EXTERN PetscErrorCode TSTrajectorySetMaxCpsDisk(TSTrajectory, PetscInt);
368: PETSC_EXTERN PetscErrorCode TSTrajectorySetMaxUnitsRAM(TSTrajectory, PetscInt);
369: PETSC_EXTERN PetscErrorCode TSTrajectorySetMaxUnitsDisk(TSTrajectory, PetscInt);

371: PETSC_EXTERN PetscErrorCode TSSetCostGradients(TS, PetscInt, Vec *, Vec *);
372: PETSC_EXTERN PetscErrorCode TSGetCostGradients(TS, PetscInt *, Vec **, Vec **);
373: 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 *);
374: PETSC_EXTERN PetscErrorCode TSGetCostIntegral(TS, Vec *);
375: PETSC_EXTERN PetscErrorCode TSComputeCostIntegrand(TS, PetscReal, Vec, Vec);
376: PETSC_EXTERN PetscErrorCode TSCreateQuadratureTS(TS, PetscBool, TS *);
377: PETSC_EXTERN PetscErrorCode TSGetQuadratureTS(TS, PetscBool *, TS *);

379: PETSC_EXTERN PetscErrorCode TSAdjointSetFromOptions(TS, PetscOptionItems *);
380: PETSC_EXTERN PetscErrorCode TSAdjointMonitor(TS, PetscInt, PetscReal, Vec, PetscInt, Vec *, Vec *);
381: PETSC_EXTERN PetscErrorCode TSAdjointMonitorSet(TS, PetscErrorCode (*)(TS, PetscInt, PetscReal, Vec, PetscInt, Vec *, Vec *, void *), void *, PetscErrorCode (*)(void **));
382: PETSC_EXTERN PetscErrorCode TSAdjointMonitorCancel(TS);
383: PETSC_EXTERN PetscErrorCode TSAdjointMonitorSetFromOptions(TS, const char[], const char[], const char[], PetscErrorCode (*)(TS, PetscInt, PetscReal, Vec, PetscInt, Vec *, Vec *, PetscViewerAndFormat *), PetscErrorCode (*)(TS, PetscViewerAndFormat *));

385: PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 5, 0, "TSSetRHSJacobianP()", ) PetscErrorCode TSAdjointSetRHSJacobian(TS, Mat, PetscErrorCode (*)(TS, PetscReal, Vec, Mat, void *), void *);
386: PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 5, 0, "TSComputeRHSJacobianP()", ) PetscErrorCode TSAdjointComputeRHSJacobian(TS, PetscReal, Vec, Mat);
387: PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 5, 0, "TSGetQuadratureTS()", ) PetscErrorCode TSAdjointComputeDRDPFunction(TS, PetscReal, Vec, Vec *);
388: PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 5, 0, "TSGetQuadratureTS()", ) PetscErrorCode TSAdjointComputeDRDYFunction(TS, PetscReal, Vec, Vec *);
389: PETSC_EXTERN PetscErrorCode TSAdjointSolve(TS);
390: PETSC_EXTERN PetscErrorCode TSAdjointSetSteps(TS, PetscInt);

392: PETSC_EXTERN PetscErrorCode TSAdjointStep(TS);
393: PETSC_EXTERN PetscErrorCode TSAdjointSetUp(TS);
394: PETSC_EXTERN PetscErrorCode TSAdjointReset(TS);
395: PETSC_EXTERN PetscErrorCode TSAdjointCostIntegral(TS);
396: PETSC_EXTERN PetscErrorCode TSAdjointSetForward(TS, Mat);
397: PETSC_EXTERN PetscErrorCode TSAdjointResetForward(TS);

399: PETSC_EXTERN PetscErrorCode TSForwardSetSensitivities(TS, PetscInt, Mat);
400: PETSC_EXTERN PetscErrorCode TSForwardGetSensitivities(TS, PetscInt *, Mat *);
401: PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 12, 0, "TSCreateQuadratureTS()", ) PetscErrorCode TSForwardSetIntegralGradients(TS, PetscInt, Vec *);
402: PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 12, 0, "TSForwardGetSensitivities()", ) PetscErrorCode TSForwardGetIntegralGradients(TS, PetscInt *, Vec **);
403: PETSC_EXTERN PetscErrorCode TSForwardSetUp(TS);
404: PETSC_EXTERN PetscErrorCode TSForwardReset(TS);
405: PETSC_EXTERN PetscErrorCode TSForwardCostIntegral(TS);
406: PETSC_EXTERN PetscErrorCode TSForwardStep(TS);
407: PETSC_EXTERN PetscErrorCode TSForwardSetInitialSensitivities(TS, Mat);
408: PETSC_EXTERN PetscErrorCode TSForwardGetStages(TS, PetscInt *, Mat *[]);

410: PETSC_EXTERN PetscErrorCode TSSetMaxSteps(TS, PetscInt);
411: PETSC_EXTERN PetscErrorCode TSGetMaxSteps(TS, PetscInt *);
412: PETSC_EXTERN PetscErrorCode TSSetMaxTime(TS, PetscReal);
413: PETSC_EXTERN PetscErrorCode TSGetMaxTime(TS, PetscReal *);
414: PETSC_EXTERN PetscErrorCode TSSetExactFinalTime(TS, TSExactFinalTimeOption);
415: PETSC_EXTERN PetscErrorCode TSGetExactFinalTime(TS, TSExactFinalTimeOption *);
416: PETSC_EXTERN PetscErrorCode TSSetTimeSpan(TS, PetscInt, PetscReal *);
417: PETSC_EXTERN PetscErrorCode TSGetTimeSpan(TS, PetscInt *, const PetscReal **);
418: PETSC_EXTERN PetscErrorCode TSGetTimeSpanSolutions(TS, PetscInt *, Vec **);

420: PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 8, 0, "TSSetTime()", ) PetscErrorCode TSSetInitialTimeStep(TS, PetscReal, PetscReal);
421: PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 8, 0, "TSSetMax()", ) PetscErrorCode TSSetDuration(TS, PetscInt, PetscReal);
422: PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 8, 0, "TSGetMax()", ) PetscErrorCode TSGetDuration(TS, PetscInt *, PetscReal *);
423: PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 8, 0, "TSGetStepNumber()", ) PetscErrorCode TSGetTimeStepNumber(TS, PetscInt *);
424: PETSC_EXTERN PETSC_DEPRECATED_FUNCTION(3, 8, 0, "TSGetStepNumber()", ) PetscErrorCode TSGetTotalSteps(TS, PetscInt *);

426: PETSC_EXTERN PetscErrorCode TSMonitorDefault(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *);
427: PETSC_EXTERN PetscErrorCode TSMonitorExtreme(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *);

429: typedef struct _n_TSMonitorDrawCtx *TSMonitorDrawCtx;
430: PETSC_EXTERN PetscErrorCode         TSMonitorDrawCtxCreate(MPI_Comm, const char[], const char[], int, int, int, int, PetscInt, TSMonitorDrawCtx *);
431: PETSC_EXTERN PetscErrorCode         TSMonitorDrawCtxDestroy(TSMonitorDrawCtx *);
432: PETSC_EXTERN PetscErrorCode         TSMonitorDrawSolution(TS, PetscInt, PetscReal, Vec, void *);
433: PETSC_EXTERN PetscErrorCode         TSMonitorDrawSolutionPhase(TS, PetscInt, PetscReal, Vec, void *);
434: PETSC_EXTERN PetscErrorCode         TSMonitorDrawError(TS, PetscInt, PetscReal, Vec, void *);
435: PETSC_EXTERN PetscErrorCode         TSMonitorDrawSolutionFunction(TS, PetscInt, PetscReal, Vec, void *);

437: PETSC_EXTERN PetscErrorCode TSAdjointMonitorDefault(TS, PetscInt, PetscReal, Vec, PetscInt, Vec *, Vec *, PetscViewerAndFormat *);
438: PETSC_EXTERN PetscErrorCode TSAdjointMonitorDrawSensi(TS, PetscInt, PetscReal, Vec, PetscInt, Vec *, Vec *, void *);

440: PETSC_EXTERN PetscErrorCode TSMonitorSolution(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *);

442: typedef struct _n_TSMonitorVTKCtx *TSMonitorVTKCtx;
443: PETSC_EXTERN PetscErrorCode        TSMonitorSolutionVTK(TS, PetscInt, PetscReal, Vec, TSMonitorVTKCtx);
444: PETSC_EXTERN PetscErrorCode        TSMonitorSolutionVTKDestroy(TSMonitorVTKCtx *);
445: PETSC_EXTERN PetscErrorCode        TSMonitorSolutionVTKCtxCreate(const char *, TSMonitorVTKCtx *);

447: PETSC_EXTERN PetscErrorCode TSStep(TS);
448: PETSC_EXTERN PetscErrorCode TSEvaluateWLTE(TS, NormType, PetscInt *, PetscReal *);
449: PETSC_EXTERN PetscErrorCode TSEvaluateStep(TS, PetscInt, Vec, PetscBool *);
450: PETSC_EXTERN PetscErrorCode TSSolve(TS, Vec);
451: PETSC_EXTERN PetscErrorCode TSGetEquationType(TS, TSEquationType *);
452: PETSC_EXTERN PetscErrorCode TSSetEquationType(TS, TSEquationType);
453: PETSC_EXTERN PetscErrorCode TSGetConvergedReason(TS, TSConvergedReason *);
454: PETSC_EXTERN PetscErrorCode TSSetConvergedReason(TS, TSConvergedReason);
455: PETSC_EXTERN PetscErrorCode TSGetSolveTime(TS, PetscReal *);
456: PETSC_EXTERN PetscErrorCode TSGetSNESIterations(TS, PetscInt *);
457: PETSC_EXTERN PetscErrorCode TSGetKSPIterations(TS, PetscInt *);
458: PETSC_EXTERN PetscErrorCode TSGetStepRejections(TS, PetscInt *);
459: PETSC_EXTERN PetscErrorCode TSSetMaxStepRejections(TS, PetscInt);
460: PETSC_EXTERN PetscErrorCode TSGetSNESFailures(TS, PetscInt *);
461: PETSC_EXTERN PetscErrorCode TSSetMaxSNESFailures(TS, PetscInt);
462: PETSC_EXTERN PetscErrorCode TSSetErrorIfStepFails(TS, PetscBool);
463: PETSC_EXTERN PetscErrorCode TSRestartStep(TS);
464: PETSC_EXTERN PetscErrorCode TSRollBack(TS);
465: PETSC_EXTERN PetscErrorCode TSGetStepRollBack(TS, PetscBool *);

467: PETSC_EXTERN PetscErrorCode TSGetStages(TS, PetscInt *, Vec *[]);

469: PETSC_EXTERN PetscErrorCode TSGetTime(TS, PetscReal *);
470: PETSC_EXTERN PetscErrorCode TSSetTime(TS, PetscReal);
471: PETSC_EXTERN PetscErrorCode TSGetPrevTime(TS, PetscReal *);
472: PETSC_EXTERN PetscErrorCode TSGetTimeStep(TS, PetscReal *);
473: PETSC_EXTERN PetscErrorCode TSSetTimeStep(TS, PetscReal);
474: PETSC_EXTERN PetscErrorCode TSGetStepNumber(TS, PetscInt *);
475: PETSC_EXTERN PetscErrorCode TSSetStepNumber(TS, PetscInt);

477: /*S
478:   TSRHSFunctionFn - A prototype of a `TS` right-hand-side evaluation function that would be passed to `TSSetRHSFunction()`

480:   Calling Sequence:
481: + ts  - timestep context
482: . t   - current time
483: . u   - input vector
484: . F   - function vector
485: - ctx - [optional] user-defined function context

487:   Level: beginner

489:   Note:
490:   The deprecated `TSRHSFunction` still works as a replacement for `TSRHSFunctionFn` *.

492: .seealso: [](ch_ts), `TS`, `TSSetRHSFunction()`, `DMTSSetRHSFunction()`, `TSIFunctionFn`,
493: `TSIJacobianFn`, `TSRHSJacobianFn`
494: S*/
495: PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSRHSFunctionFn)(TS ts, PetscReal t, Vec u, Vec F, void *ctx);

497: PETSC_EXTERN_TYPEDEF typedef TSRHSFunctionFn *TSRHSFunction;

499: /*S
500:   TSRHSJacobianFn - A prototype of a `TS` right-hand-side Jacobian evaluation function that would be passed to `TSSetRHSJacobian()`

502:   Calling Sequence:
503: + ts   - the `TS` context obtained from `TSCreate()`
504: . t    - current time
505: . u    - input vector
506: . Amat - (approximate) Jacobian matrix
507: . Pmat - matrix from which preconditioner is to be constructed (usually the same as `Amat`)
508: - ctx  - [optional] user-defined context for matrix evaluation routine

510:   Level: beginner

512:   Note:
513:   The deprecated `TSRHSJacobian` still works as a replacement for `TSRHSJacobianFn` *.

515: .seealso: [](ch_ts), `TS`, `TSSetRHSJacobian()`, `DMTSSetRHSJacobian()`, `TSRHSFunctionFn`,
516: `TSIFunctionFn`, `TSIJacobianFn`
517: S*/
518: PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSRHSJacobianFn)(TS ts, PetscReal t, Vec u, Mat Amat, Mat Pmat, void *ctx);

520: PETSC_EXTERN_TYPEDEF typedef TSRHSJacobianFn *TSRHSJacobian;

522: /*S
523:   TSRHSJacobianPFn - A prototype of a function that computes the Jacobian of G w.r.t. the parameters P where
524:   U_t = G(U,P,t), as well as the location to store the matrix that would be passed to `TSSetRHSJacobianP()`

526:   Calling Sequence:
527: + ts  - the `TS` context
528: . t   - current timestep
529: . U   - input vector (current ODE solution)
530: . A   - output matrix
531: - ctx - [optional] user-defined function context

533:   Level: beginner

535:   Note:
536:   The deprecated `TSRHSJacobianP` still works as a replacement for `TSRHSJacobianPFn` *.

538: .seealso: [](ch_ts), `TS`, `TSSetRHSJacobianP()`, `TSGetRHSJacobianP()`
539: S*/
540: PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSRHSJacobianPFn)(TS ts, PetscReal t, Vec U, Mat A, void *ctx);

542: PETSC_EXTERN_TYPEDEF typedef TSRHSJacobianPFn *TSRHSJacobianP;

544: PETSC_EXTERN PetscErrorCode TSSetRHSFunction(TS, Vec, TSRHSFunctionFn *, void *);
545: PETSC_EXTERN PetscErrorCode TSGetRHSFunction(TS, Vec *, TSRHSFunctionFn **, void **);
546: PETSC_EXTERN PetscErrorCode TSSetRHSJacobian(TS, Mat, Mat, TSRHSJacobianFn *, void *);
547: PETSC_EXTERN PetscErrorCode TSGetRHSJacobian(TS, Mat *, Mat *, TSRHSJacobianFn **, void **);
548: PETSC_EXTERN PetscErrorCode TSRHSJacobianSetReuse(TS, PetscBool);

550: /*S
551:   TSSolutionFn - A prototype of a `TS` solution evaluation function that would be passed to `TSSetSolutionFunction()`

553:   Calling Sequence:
554: + ts  - timestep context
555: . t   - current time
556: . u   - output vector
557: - ctx - [optional] user-defined function context

559:   Level: advanced

561:   Note:
562:   The deprecated `TSSolutionFunction` still works as a replacement for `TSSolutionFn` *.

564: .seealso: [](ch_ts), `TS`, `TSSetSolutionFunction()`, `DMTSSetSolutionFunction()`
565: S*/
566: PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSSolutionFn)(TS ts, PetscReal t, Vec u, void *ctx);

568: PETSC_EXTERN_TYPEDEF typedef TSSolutionFn *TSSolutionFunction;

570: PETSC_EXTERN PetscErrorCode TSSetSolutionFunction(TS, TSSolutionFn *, void *);

572: /*S
573:   TSForcingFn - A prototype of a `TS` forcing function evaluation function that would be passed to `TSSetForcingFunction()`

575:   Calling Sequence:
576: + ts  - timestep context
577: . t   - current time
578: . f   - output vector
579: - ctx - [optional] user-defined function context

581:   Level: advanced

583:   Note:
584:   The deprecated `TSForcingFunction` still works as a replacement for `TSForcingFn` *.

586: .seealso: [](ch_ts), `TS`, `TSSetForcingFunction()`, `DMTSSetForcingFunction()`
587: S*/
588: PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSForcingFn)(TS ts, PetscReal t, Vec f, void *ctx);

590: PETSC_EXTERN_TYPEDEF typedef TSForcingFn *TSForcingFunction;

592: PETSC_EXTERN PetscErrorCode TSSetForcingFunction(TS, TSForcingFn *, void *);

594: /*S
595:   TSIFunctionFn - A prototype of a `TS` implicit function evaluation function that would be passed to `TSSetIFunction()

597:   Calling Sequence:
598: + ts  - the `TS` context obtained from `TSCreate()`
599: . t   - time at step/stage being solved
600: . U   - state vector
601: . U_t - time derivative of state vector
602: . F   - function vector
603: - ctx - [optional] user-defined context for function

605:   Level: beginner

607:   Note:
608:   The deprecated `TSIFunction` still works as a replacement for `TSIFunctionFn` *.

610: .seealso: [](ch_ts), `TS`, `TSSetIFunction()`, `DMTSSetIFunction()`, `TSIJacobianFn`, `TSRHSFunctionFn`, `TSRHSJacobianFn`
611: S*/
612: PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSIFunctionFn)(TS ts, PetscReal t, Vec U, Vec U_t, Vec F, void *ctx);

614: PETSC_EXTERN_TYPEDEF typedef TSIFunctionFn *TSIFunction;

616: /*S
617:   TSIJacobianFn - A prototype of a `TS` Jacobian evaluation function that would be passed to `TSSetIJacobian()`

619:   Calling Sequence:
620: + ts   - the `TS` context obtained from `TSCreate()`
621: . t    - time at step/stage being solved
622: . U    - state vector
623: . U_t  - time derivative of state vector
624: . a    - shift
625: . Amat - (approximate) Jacobian of F(t,U,W+a*U), equivalent to dF/dU + a*dF/dU_t
626: . Pmat - matrix used for constructing preconditioner, usually the same as `Amat`
627: - ctx  - [optional] user-defined context for Jacobian evaluation routine

629:   Level: beginner

631:   Note:
632:   The deprecated `TSIJacobian` still works as a replacement for `TSIJacobianFn` *.

634: .seealso: [](ch_ts), `TSSetIJacobian()`, `DMTSSetIJacobian()`, `TSIFunctionFn`, `TSRHSFunctionFn`, `TSRHSJacobianFn`
635: S*/
636: PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSIJacobianFn)(TS ts, PetscReal t, Vec U, Vec U_t, PetscReal a, Mat Amat, Mat Pmat, void *ctx);

638: PETSC_EXTERN_TYPEDEF typedef TSIJacobianFn *TSIJacobian;

640: PETSC_EXTERN PetscErrorCode TSSetIFunction(TS, Vec, TSIFunctionFn *, void *);
641: PETSC_EXTERN PetscErrorCode TSGetIFunction(TS, Vec *, TSIFunctionFn **, void **);
642: PETSC_EXTERN PetscErrorCode TSSetIJacobian(TS, Mat, Mat, TSIJacobianFn *, void *);
643: PETSC_EXTERN PetscErrorCode TSGetIJacobian(TS, Mat *, Mat *, TSIJacobianFn **, void **);

645: /*S
646:   TSI2FunctionFn - A prototype of a `TS` implicit function evaluation function for 2nd order systems that would be passed to `TSSetI2Function()`

648:   Calling Sequence:
649: + ts   - the `TS` context obtained from `TSCreate()`
650: . t    - time at step/stage being solved
651: . U    - state vector
652: . U_t  - time derivative of state vector
653: . U_tt - second time derivative of state vector
654: . F    - function vector
655: - ctx  - [optional] user-defined context for matrix evaluation routine (may be `NULL`)

657:   Level: advanced

659:   Note:
660:   The deprecated `TSI2Function` still works as a replacement for `TSI2FunctionFn` *.

662: .seealso: [](ch_ts), `TS`, `TSSetI2Function()`, `DMTSSetI2Function()`, `TSIFunctionFn`
663: S*/
664: PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSI2FunctionFn)(TS ts, PetscReal t, Vec U, Vec U_t, Vec U_tt, Vec F, void *ctx);

666: PETSC_EXTERN_TYPEDEF typedef TSI2FunctionFn *TSI2Function;

668: /*S
669:   TSI2JacobianFn - A prototype of a `TS` implicit Jacobian evaluation function for 2nd order systems that would be passed to `TSSetI2Jacobian()`

671:   Calling Sequence:
672: + ts   - the `TS` context obtained from `TSCreate()`
673: . t    - time at step/stage being solved
674: . U    - state vector
675: . U_t  - time derivative of state vector
676: . U_tt - second time derivative of state vector
677: . v    - shift for U_t
678: . a    - shift for U_tt
679: . 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
680: . jac  - matrix from which to construct the preconditioner, may be same as `J`
681: - ctx  - [optional] user-defined context for matrix evaluation routine

683:   Level: advanced

685:   Note:
686:   The deprecated `TSI2Jacobian` still works as a replacement for `TSI2JacobianFn` *.

688: .seealso: [](ch_ts), `TS`, `TSSetI2Jacobian()`, `DMTSSetI2Jacobian()`, `TSIFunctionFn`, `TSIJacobianFn`, `TSRHSFunctionFn`, `TSRHSJacobianFn`
689: S*/
690: 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);

692: PETSC_EXTERN_TYPEDEF typedef TSI2JacobianFn *TSI2Jacobian;

694: PETSC_EXTERN PetscErrorCode TSSetI2Function(TS, Vec, TSI2FunctionFn *, void *);
695: PETSC_EXTERN PetscErrorCode TSGetI2Function(TS, Vec *, TSI2FunctionFn **, void **);
696: PETSC_EXTERN PetscErrorCode TSSetI2Jacobian(TS, Mat, Mat, TSI2JacobianFn *, void *);
697: PETSC_EXTERN PetscErrorCode TSGetI2Jacobian(TS, Mat *, Mat *, TSI2JacobianFn **, void **);

699: PETSC_EXTERN PetscErrorCode TSRHSSplitSetIS(TS, const char[], IS);
700: PETSC_EXTERN PetscErrorCode TSRHSSplitGetIS(TS, const char[], IS *);
701: PETSC_EXTERN PetscErrorCode TSRHSSplitSetRHSFunction(TS, const char[], Vec, TSRHSFunctionFn *, void *);
702: PETSC_EXTERN PetscErrorCode TSRHSSplitSetIFunction(TS, const char[], Vec, TSIFunctionFn *, void *);
703: PETSC_EXTERN PetscErrorCode TSRHSSplitSetIJacobian(TS, const char[], Mat, Mat, TSIJacobianFn *, void *);
704: PETSC_EXTERN PetscErrorCode TSRHSSplitGetSubTS(TS, const char[], TS *);
705: PETSC_EXTERN PetscErrorCode TSRHSSplitGetSubTSs(TS, PetscInt *, TS *[]);
706: PETSC_EXTERN PetscErrorCode TSSetUseSplitRHSFunction(TS, PetscBool);
707: PETSC_EXTERN PetscErrorCode TSGetUseSplitRHSFunction(TS, PetscBool *);
708: PETSC_EXTERN PetscErrorCode TSRHSSplitGetSNES(TS, SNES *);
709: PETSC_EXTERN PetscErrorCode TSRHSSplitSetSNES(TS, SNES);

711: PETSC_EXTERN TSRHSFunctionFn TSComputeRHSFunctionLinear;
712: PETSC_EXTERN TSRHSJacobianFn TSComputeRHSJacobianConstant;
713: PETSC_EXTERN PetscErrorCode  TSComputeIFunctionLinear(TS, PetscReal, Vec, Vec, Vec, void *);
714: PETSC_EXTERN PetscErrorCode  TSComputeIJacobianConstant(TS, PetscReal, Vec, Vec, PetscReal, Mat, Mat, void *);
715: PETSC_EXTERN PetscErrorCode  TSComputeSolutionFunction(TS, PetscReal, Vec);
716: PETSC_EXTERN PetscErrorCode  TSComputeForcingFunction(TS, PetscReal, Vec);
717: PETSC_EXTERN PetscErrorCode  TSComputeIJacobianDefaultColor(TS, PetscReal, Vec, Vec, PetscReal, Mat, Mat, void *);
718: PETSC_EXTERN PetscErrorCode  TSPruneIJacobianColor(TS, Mat, Mat);

720: PETSC_EXTERN PetscErrorCode TSSetPreStep(TS, PetscErrorCode (*)(TS));
721: PETSC_EXTERN PetscErrorCode TSSetPreStage(TS, PetscErrorCode (*)(TS, PetscReal));
722: PETSC_EXTERN PetscErrorCode TSSetPostStage(TS, PetscErrorCode (*)(TS, PetscReal, PetscInt, Vec *));
723: PETSC_EXTERN PetscErrorCode TSSetPostEvaluate(TS, PetscErrorCode (*)(TS));
724: PETSC_EXTERN PetscErrorCode TSSetPostStep(TS, PetscErrorCode (*)(TS));
725: PETSC_EXTERN PetscErrorCode TSSetResize(TS, PetscBool, PetscErrorCode (*)(TS, PetscInt, PetscReal, Vec, PetscBool *, void *), PetscErrorCode (*)(TS, PetscInt, Vec[], Vec[], void *), void *);
726: PETSC_EXTERN PetscErrorCode TSPreStep(TS);
727: PETSC_EXTERN PetscErrorCode TSPreStage(TS, PetscReal);
728: PETSC_EXTERN PetscErrorCode TSPostStage(TS, PetscReal, PetscInt, Vec *);
729: PETSC_EXTERN PetscErrorCode TSPostEvaluate(TS);
730: PETSC_EXTERN PetscErrorCode TSPostStep(TS);
731: PETSC_EXTERN PetscErrorCode TSResize(TS);
732: PETSC_EXTERN PetscErrorCode TSResizeRetrieveVec(TS, const char *, Vec *);
733: PETSC_EXTERN PetscErrorCode TSResizeRegisterVec(TS, const char *, Vec);
734: PETSC_EXTERN PetscErrorCode TSGetStepResize(TS, PetscBool *);

736: PETSC_EXTERN PetscErrorCode TSInterpolate(TS, PetscReal, Vec);
737: PETSC_EXTERN PetscErrorCode TSSetTolerances(TS, PetscReal, Vec, PetscReal, Vec);
738: PETSC_EXTERN PetscErrorCode TSGetTolerances(TS, PetscReal *, Vec *, PetscReal *, Vec *);
739: PETSC_EXTERN PetscErrorCode TSErrorWeightedNorm(TS, Vec, Vec, NormType, PetscReal *, PetscReal *, PetscReal *);
740: PETSC_EXTERN PetscErrorCode TSErrorWeightedENorm(TS, Vec, Vec, Vec, NormType, PetscReal *, PetscReal *, PetscReal *);
741: PETSC_EXTERN PetscErrorCode TSSetCFLTimeLocal(TS, PetscReal);
742: PETSC_EXTERN PetscErrorCode TSGetCFLTime(TS, PetscReal *);
743: PETSC_EXTERN PetscErrorCode TSSetFunctionDomainError(TS, PetscErrorCode (*)(TS, PetscReal, Vec, PetscBool *));
744: PETSC_EXTERN PetscErrorCode TSFunctionDomainError(TS, PetscReal, Vec, PetscBool *);

746: PETSC_EXTERN PetscErrorCode TSPseudoSetTimeStep(TS, PetscErrorCode (*)(TS, PetscReal *, void *), void *);
747: PETSC_EXTERN PetscErrorCode TSPseudoTimeStepDefault(TS, PetscReal *, void *);
748: PETSC_EXTERN PetscErrorCode TSPseudoComputeTimeStep(TS, PetscReal *);
749: PETSC_EXTERN PetscErrorCode TSPseudoSetMaxTimeStep(TS, PetscReal);
750: PETSC_EXTERN PetscErrorCode TSPseudoSetVerifyTimeStep(TS, PetscErrorCode (*)(TS, Vec, void *, PetscReal *, PetscBool *), void *);
751: PETSC_EXTERN PetscErrorCode TSPseudoVerifyTimeStepDefault(TS, Vec, void *, PetscReal *, PetscBool *);
752: PETSC_EXTERN PetscErrorCode TSPseudoVerifyTimeStep(TS, Vec, PetscReal *, PetscBool *);
753: PETSC_EXTERN PetscErrorCode TSPseudoSetTimeStepIncrement(TS, PetscReal);
754: PETSC_EXTERN PetscErrorCode TSPseudoIncrementDtFromInitialDt(TS);

756: PETSC_EXTERN PetscErrorCode TSPythonSetType(TS, const char[]);
757: PETSC_EXTERN PetscErrorCode TSPythonGetType(TS, const char *[]);

759: PETSC_EXTERN PetscErrorCode TSComputeRHSFunction(TS, PetscReal, Vec, Vec);
760: PETSC_EXTERN PetscErrorCode TSComputeRHSJacobian(TS, PetscReal, Vec, Mat, Mat);
761: PETSC_EXTERN PetscErrorCode TSComputeIFunction(TS, PetscReal, Vec, Vec, Vec, PetscBool);
762: PETSC_EXTERN PetscErrorCode TSComputeIJacobian(TS, PetscReal, Vec, Vec, PetscReal, Mat, Mat, PetscBool);
763: PETSC_EXTERN PetscErrorCode TSComputeI2Function(TS, PetscReal, Vec, Vec, Vec, Vec);
764: PETSC_EXTERN PetscErrorCode TSComputeI2Jacobian(TS, PetscReal, Vec, Vec, Vec, PetscReal, PetscReal, Mat, Mat);
765: PETSC_EXTERN PetscErrorCode TSComputeLinearStability(TS, PetscReal, PetscReal, PetscReal *, PetscReal *);

767: PETSC_EXTERN PetscErrorCode TSVISetVariableBounds(TS, Vec, Vec);

769: PETSC_EXTERN PetscErrorCode DMTSSetBoundaryLocal(DM, PetscErrorCode (*)(DM, PetscReal, Vec, Vec, void *), void *);
770: PETSC_EXTERN PetscErrorCode DMTSSetRHSFunction(DM, TSRHSFunctionFn *, void *);
771: PETSC_EXTERN PetscErrorCode DMTSGetRHSFunction(DM, TSRHSFunctionFn **, void **);
772: PETSC_EXTERN PetscErrorCode DMTSSetRHSFunctionContextDestroy(DM, PetscErrorCode (*)(void *));
773: PETSC_EXTERN PetscErrorCode DMTSSetRHSJacobian(DM, TSRHSJacobianFn *, void *);
774: PETSC_EXTERN PetscErrorCode DMTSGetRHSJacobian(DM, TSRHSJacobianFn **, void **);
775: PETSC_EXTERN PetscErrorCode DMTSSetRHSJacobianContextDestroy(DM, PetscErrorCode (*)(void *));
776: PETSC_EXTERN PetscErrorCode DMTSSetIFunction(DM, TSIFunctionFn *, void *);
777: PETSC_EXTERN PetscErrorCode DMTSGetIFunction(DM, TSIFunctionFn **, void **);
778: PETSC_EXTERN PetscErrorCode DMTSSetIFunctionContextDestroy(DM, PetscErrorCode (*)(void *));
779: PETSC_EXTERN PetscErrorCode DMTSSetIJacobian(DM, TSIJacobianFn *, void *);
780: PETSC_EXTERN PetscErrorCode DMTSGetIJacobian(DM, TSIJacobianFn **, void **);
781: PETSC_EXTERN PetscErrorCode DMTSSetIJacobianContextDestroy(DM, PetscErrorCode (*)(void *));
782: PETSC_EXTERN PetscErrorCode DMTSSetI2Function(DM, TSI2FunctionFn *, void *);
783: PETSC_EXTERN PetscErrorCode DMTSGetI2Function(DM, TSI2FunctionFn **, void **);
784: PETSC_EXTERN PetscErrorCode DMTSSetI2FunctionContextDestroy(DM, PetscErrorCode (*)(void *));
785: PETSC_EXTERN PetscErrorCode DMTSSetI2Jacobian(DM, TSI2JacobianFn *, void *);
786: PETSC_EXTERN PetscErrorCode DMTSGetI2Jacobian(DM, TSI2JacobianFn **, void **);
787: PETSC_EXTERN PetscErrorCode DMTSSetI2JacobianContextDestroy(DM, PetscErrorCode (*)(void *));

789: /*S
790:   TSTransientVariableFn - A prototype of a function to transform from state to transient variables that would be passed to `TSSetTransientVariable()`

792:   Calling Sequence:
793: + ts  - timestep context
794: . p   - input vector (primitive form)
795: . c   - output vector, transient variables (conservative form)
796: - ctx - [optional] user-defined function context

798:   Level: advanced

800:   Note:
801:   The deprecated `TSTransientVariable` still works as a replacement for `TSTransientVariableFn` *.

803: .seealso: [](ch_ts), `TS`, `TSSetTransientVariable()`, `DMTSSetTransientVariable()`
804: S*/
805: PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSTransientVariableFn)(TS ts, Vec p, Vec c, void *ctx);

807: PETSC_EXTERN_TYPEDEF typedef TSTransientVariableFn *TSTransientVariable;

809: PETSC_EXTERN PetscErrorCode TSSetTransientVariable(TS, TSTransientVariableFn *, void *);
810: PETSC_EXTERN PetscErrorCode DMTSSetTransientVariable(DM, TSTransientVariableFn *, void *);
811: PETSC_EXTERN PetscErrorCode DMTSGetTransientVariable(DM, TSTransientVariableFn **, void *);
812: PETSC_EXTERN PetscErrorCode TSComputeTransientVariable(TS, Vec, Vec);
813: PETSC_EXTERN PetscErrorCode TSHasTransientVariable(TS, PetscBool *);

815: PETSC_EXTERN PetscErrorCode DMTSSetSolutionFunction(DM, TSSolutionFn *, void *);
816: PETSC_EXTERN PetscErrorCode DMTSGetSolutionFunction(DM, TSSolutionFn **, void **);
817: PETSC_EXTERN PetscErrorCode DMTSSetForcingFunction(DM, TSForcingFn *, void *);
818: PETSC_EXTERN PetscErrorCode DMTSGetForcingFunction(DM, TSForcingFn **, void **);
819: PETSC_EXTERN PetscErrorCode DMTSCheckResidual(TS, DM, PetscReal, Vec, Vec, PetscReal, PetscReal *);
820: PETSC_EXTERN PetscErrorCode DMTSCheckJacobian(TS, DM, PetscReal, Vec, Vec, PetscReal, PetscBool *, PetscReal *);
821: PETSC_EXTERN PetscErrorCode DMTSCheckFromOptions(TS, Vec);

823: PETSC_EXTERN PetscErrorCode DMTSGetIFunctionLocal(DM, PetscErrorCode (**)(DM, PetscReal, Vec, Vec, Vec, void *), void **);
824: PETSC_EXTERN PetscErrorCode DMTSSetIFunctionLocal(DM, PetscErrorCode (*)(DM, PetscReal, Vec, Vec, Vec, void *), void *);
825: PETSC_EXTERN PetscErrorCode DMTSGetIJacobianLocal(DM, PetscErrorCode (**)(DM, PetscReal, Vec, Vec, PetscReal, Mat, Mat, void *), void **);
826: PETSC_EXTERN PetscErrorCode DMTSSetIJacobianLocal(DM, PetscErrorCode (*)(DM, PetscReal, Vec, Vec, PetscReal, Mat, Mat, void *), void *);
827: PETSC_EXTERN PetscErrorCode DMTSGetRHSFunctionLocal(DM, PetscErrorCode (**)(DM, PetscReal, Vec, Vec, void *), void **);
828: PETSC_EXTERN PetscErrorCode DMTSSetRHSFunctionLocal(DM, PetscErrorCode (*)(DM, PetscReal, Vec, Vec, void *), void *);
829: PETSC_EXTERN PetscErrorCode DMTSCreateRHSMassMatrix(DM);
830: PETSC_EXTERN PetscErrorCode DMTSCreateRHSMassMatrixLumped(DM);
831: PETSC_EXTERN PetscErrorCode DMTSDestroyRHSMassMatrix(DM);

833: PETSC_EXTERN PetscErrorCode DMTSSetIFunctionSerialize(DM, PetscErrorCode (*)(void *, PetscViewer), PetscErrorCode (*)(void **, PetscViewer));
834: PETSC_EXTERN PetscErrorCode DMTSSetIJacobianSerialize(DM, PetscErrorCode (*)(void *, PetscViewer), PetscErrorCode (*)(void **, PetscViewer));

836: /*S
837:   DMDATSRHSFunctionLocalFn - A prototype of a local `TS` right-hand side residual evaluation function for use with `DMDA` that would be passed to `DMDATSSetRHSFunctionLocal()`

839:   Calling Sequence:
840: + info - defines the subdomain to evaluate the residual on
841: . t    - time at which to evaluate residual
842: . x    - array of local state information
843: . f    - output array of local residual information
844: - ctx  - optional user context

846:   Level: beginner

848:   Note:
849:   The deprecated `DMDATSRHSFunctionLocal` still works as a replacement for `DMDATSRHSFunctionLocalFn` *.

851: .seealso: `DMDA`, `DMDATSSetRHSFunctionLocal()`, `TSRHSFunctionFn`, `DMDATSRHSJacobianLocalFn`, `DMDATSIJacobianLocalFn`, `DMDATSIFunctionLocalFn`
852: S*/
853: PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(DMDATSRHSFunctionLocalFn)(DMDALocalInfo *info, PetscReal t, void *x, void *f, void *ctx);

855: PETSC_EXTERN_TYPEDEF typedef DMDATSRHSFunctionLocalFn *DMDATSRHSFunctionLocal;

857: /*S
858:   DMDATSRHSJacobianLocalFn - A prototype of a local residual evaluation function for use with `DMDA` that would be passed to `DMDATSSetRHSJacobianLocal()`

860:   Calling Sequence:
861: + info - defines the subdomain to evaluate the residual on
862: . t    - time at which to evaluate residual
863: . x    - array of local state information
864: . J    - Jacobian matrix
865: . B    - matrix from which to construct the preconditioner; often same as `J`
866: - ctx  - optional context

868:   Level: beginner

870:   Note:
871:   The deprecated `DMDATSRHSJacobianLocal` still works as a replacement for `DMDATSRHSJacobianLocalFn` *.

873: .seealso: `DMDA`, `DMDATSSetRHSJacobianLocal()`, `TSRHSJacobianFn`, `DMDATSRHSFunctionLocalFn`, `DMDATSIJacobianLocalFn`, `DMDATSIFunctionLocalFn`
874: S*/
875: PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(DMDATSRHSJacobianLocalFn)(DMDALocalInfo *info, PetscReal t, void *x, Mat J, Mat B, void *ctx);

877: PETSC_EXTERN_TYPEDEF typedef DMDATSRHSJacobianLocalFn *DMDATSRHSJacobianLocal;

879: /*S
880:   DMDATSIFunctionLocalFn - A prototype of a local residual evaluation function for use with `DMDA` that would be passed to `DMDATSSetIFunctionLocal()`

882:   Calling Sequence:
883: + info  - defines the subdomain to evaluate the residual on
884: . t     - time at which to evaluate residual
885: . x     - array of local state information
886: . xdot  - array of local time derivative information
887: . imode - output array of local function evaluation information
888: - ctx   - optional context

890:   Level: beginner

892:   Note:
893:   The deprecated `DMDATSIFunctionLocal` still works as a replacement for `DMDATSIFunctionLocalFn` *.

895: .seealso: `DMDA`, `DMDATSSetIFunctionLocal()`, `DMDATSIJacobianLocalFn`, `TSIFunctionFn`
896: S*/
897: PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(DMDATSIFunctionLocalFn)(DMDALocalInfo *info, PetscReal t, void *x, void *xdot, void *imode, void *ctx);

899: PETSC_EXTERN_TYPEDEF typedef DMDATSIFunctionLocalFn *DMDATSIFunctionLocal;

901: /*S
902:   DMDATSIJacobianLocalFn - A prototype of a local residual evaluation function for use with `DMDA` that would be passed to `DMDATSSetIJacobianLocal()`

904:   Calling Sequence:
905: + info  - defines the subdomain to evaluate the residual on
906: . t     - time at which to evaluate the jacobian
907: . x     - array of local state information
908: . xdot  - time derivative at this state
909: . shift - see `TSSetIJacobian()` for the meaning of this parameter
910: . J     - Jacobian matrix
911: . B     - matrix from which to construct the preconditioner; often same as `J`
912: - ctx   - optional context

914:   Level: beginner

916:   Note:
917:   The deprecated `DMDATSIJacobianLocal` still works as a replacement for `DMDATSIJacobianLocalFn` *.

919: .seealso: `DMDA` `DMDATSSetIJacobianLocal()`, `TSIJacobianFn`, `DMDATSIFunctionLocalFn`, `DMDATSRHSFunctionLocalFn`,  `DMDATSRHSJacobianlocal()`
920: S*/
921: PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(DMDATSIJacobianLocalFn)(DMDALocalInfo *info, PetscReal t, void *x, void *xdot, PetscReal shift, Mat J, Mat B, void *ctx);

923: PETSC_EXTERN_TYPEDEF typedef DMDATSIJacobianLocalFn *DMDATSIJacobianLocal;

925: PETSC_EXTERN PetscErrorCode DMDATSSetRHSFunctionLocal(DM, InsertMode, DMDATSRHSFunctionLocalFn *, void *);
926: PETSC_EXTERN PetscErrorCode DMDATSSetRHSJacobianLocal(DM, DMDATSRHSJacobianLocalFn *, void *);
927: PETSC_EXTERN PetscErrorCode DMDATSSetIFunctionLocal(DM, InsertMode, DMDATSIFunctionLocalFn *, void *);
928: PETSC_EXTERN PetscErrorCode DMDATSSetIJacobianLocal(DM, DMDATSIJacobianLocalFn *, void *);

930: typedef struct _n_TSMonitorLGCtx *TSMonitorLGCtx;
931: typedef struct {
932:   Vec            ray;
933:   VecScatter     scatter;
934:   PetscViewer    viewer;
935:   TSMonitorLGCtx lgctx;
936: } TSMonitorDMDARayCtx;
937: PETSC_EXTERN PetscErrorCode TSMonitorDMDARayDestroy(void **);
938: PETSC_EXTERN PetscErrorCode TSMonitorDMDARay(TS, PetscInt, PetscReal, Vec, void *);
939: PETSC_EXTERN PetscErrorCode TSMonitorLGDMDARay(TS, PetscInt, PetscReal, Vec, void *);

941: /* Dynamic creation and loading functions */
942: PETSC_EXTERN PetscFunctionList TSList;
943: PETSC_EXTERN PetscErrorCode    TSGetType(TS, TSType *);
944: PETSC_EXTERN PetscErrorCode    TSSetType(TS, TSType);
945: PETSC_EXTERN PetscErrorCode    TSRegister(const char[], PetscErrorCode (*)(TS));

947: PETSC_EXTERN PetscErrorCode TSGetSNES(TS, SNES *);
948: PETSC_EXTERN PetscErrorCode TSSetSNES(TS, SNES);
949: PETSC_EXTERN PetscErrorCode TSGetKSP(TS, KSP *);

951: PETSC_EXTERN PetscErrorCode TSView(TS, PetscViewer);
952: PETSC_EXTERN PetscErrorCode TSLoad(TS, PetscViewer);
953: PETSC_EXTERN PetscErrorCode TSViewFromOptions(TS, PetscObject, const char[]);
954: PETSC_EXTERN PetscErrorCode TSTrajectoryViewFromOptions(TSTrajectory, PetscObject, const char[]);

956: #define TS_FILE_CLASSID 1211225

958: PETSC_EXTERN PetscErrorCode TSSetApplicationContext(TS, void *);
959: PETSC_EXTERN PetscErrorCode TSGetApplicationContext(TS, void *);

961: PETSC_EXTERN PetscErrorCode TSMonitorLGCtxCreate(MPI_Comm, const char[], const char[], int, int, int, int, PetscInt, TSMonitorLGCtx *);
962: PETSC_EXTERN PetscErrorCode TSMonitorLGCtxDestroy(TSMonitorLGCtx *);
963: PETSC_EXTERN PetscErrorCode TSMonitorLGTimeStep(TS, PetscInt, PetscReal, Vec, void *);
964: PETSC_EXTERN PetscErrorCode TSMonitorLGSolution(TS, PetscInt, PetscReal, Vec, void *);
965: PETSC_EXTERN PetscErrorCode TSMonitorLGSetVariableNames(TS, const char *const *);
966: PETSC_EXTERN PetscErrorCode TSMonitorLGGetVariableNames(TS, const char *const **);
967: PETSC_EXTERN PetscErrorCode TSMonitorLGCtxSetVariableNames(TSMonitorLGCtx, const char *const *);
968: PETSC_EXTERN PetscErrorCode TSMonitorLGSetDisplayVariables(TS, const char *const *);
969: PETSC_EXTERN PetscErrorCode TSMonitorLGCtxSetDisplayVariables(TSMonitorLGCtx, const char *const *);
970: PETSC_EXTERN PetscErrorCode TSMonitorLGSetTransform(TS, PetscErrorCode (*)(void *, Vec, Vec *), PetscErrorCode (*)(void *), void *);
971: PETSC_EXTERN PetscErrorCode TSMonitorLGCtxSetTransform(TSMonitorLGCtx, PetscErrorCode (*)(void *, Vec, Vec *), PetscErrorCode (*)(void *), void *);
972: PETSC_EXTERN PetscErrorCode TSMonitorLGError(TS, PetscInt, PetscReal, Vec, void *);
973: PETSC_EXTERN PetscErrorCode TSMonitorLGSNESIterations(TS, PetscInt, PetscReal, Vec, void *);
974: PETSC_EXTERN PetscErrorCode TSMonitorLGKSPIterations(TS, PetscInt, PetscReal, Vec, void *);
975: PETSC_EXTERN PetscErrorCode TSMonitorError(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *);
976: PETSC_EXTERN PetscErrorCode TSDMSwarmMonitorMoments(TS, PetscInt, PetscReal, Vec, PetscViewerAndFormat *);

978: struct _n_TSMonitorLGCtxNetwork {
979:   PetscInt     nlg;
980:   PetscDrawLG *lg;
981:   PetscBool    semilogy;
982:   PetscInt     howoften; /* when > 0 uses step % howoften, when negative only final solution plotted */
983: };
984: typedef struct _n_TSMonitorLGCtxNetwork *TSMonitorLGCtxNetwork;
985: PETSC_EXTERN PetscErrorCode              TSMonitorLGCtxNetworkDestroy(TSMonitorLGCtxNetwork *);
986: PETSC_EXTERN PetscErrorCode              TSMonitorLGCtxNetworkCreate(TS, const char[], const char[], int, int, int, int, PetscInt, TSMonitorLGCtxNetwork *);
987: PETSC_EXTERN PetscErrorCode              TSMonitorLGCtxNetworkSolution(TS, PetscInt, PetscReal, Vec, void *);

989: typedef struct _n_TSMonitorEnvelopeCtx *TSMonitorEnvelopeCtx;
990: PETSC_EXTERN PetscErrorCode             TSMonitorEnvelopeCtxCreate(TS, TSMonitorEnvelopeCtx *);
991: PETSC_EXTERN PetscErrorCode             TSMonitorEnvelope(TS, PetscInt, PetscReal, Vec, void *);
992: PETSC_EXTERN PetscErrorCode             TSMonitorEnvelopeGetBounds(TS, Vec *, Vec *);
993: PETSC_EXTERN PetscErrorCode             TSMonitorEnvelopeCtxDestroy(TSMonitorEnvelopeCtx *);

995: typedef struct _n_TSMonitorSPEigCtx *TSMonitorSPEigCtx;
996: PETSC_EXTERN PetscErrorCode          TSMonitorSPEigCtxCreate(MPI_Comm, const char[], const char[], int, int, int, int, PetscInt, TSMonitorSPEigCtx *);
997: PETSC_EXTERN PetscErrorCode          TSMonitorSPEigCtxDestroy(TSMonitorSPEigCtx *);
998: PETSC_EXTERN PetscErrorCode          TSMonitorSPEig(TS, PetscInt, PetscReal, Vec, void *);

1000: typedef struct _n_TSMonitorSPCtx *TSMonitorSPCtx;
1001: PETSC_EXTERN PetscErrorCode       TSMonitorSPCtxCreate(MPI_Comm, const char[], const char[], int, int, int, int, PetscInt, PetscInt, PetscBool, PetscBool, TSMonitorSPCtx *);
1002: PETSC_EXTERN PetscErrorCode       TSMonitorSPCtxDestroy(TSMonitorSPCtx *);
1003: PETSC_EXTERN PetscErrorCode       TSMonitorSPSwarmSolution(TS, PetscInt, PetscReal, Vec, void *);

1005: typedef struct _n_TSMonitorHGCtx *TSMonitorHGCtx;
1006: PETSC_EXTERN PetscErrorCode       TSMonitorHGCtxCreate(MPI_Comm, const char[], const char[], int, int, int, int, PetscInt, PetscInt, PetscInt, PetscBool, TSMonitorHGCtx *);
1007: PETSC_EXTERN PetscErrorCode       TSMonitorHGSwarmSolution(TS, PetscInt, PetscReal, Vec, void *);
1008: PETSC_EXTERN PetscErrorCode       TSMonitorHGCtxDestroy(TSMonitorHGCtx *);
1009: PETSC_EXTERN PetscErrorCode       TSMonitorHGSwarmSolution(TS, PetscInt, PetscReal, Vec, void *);

1011: PETSC_EXTERN PetscErrorCode TSSetEventHandler(TS, PetscInt, PetscInt[], PetscBool[], PetscErrorCode (*)(TS, PetscReal, Vec, PetscReal[], void *), PetscErrorCode (*)(TS, PetscInt, PetscInt[], PetscReal, Vec, PetscBool, void *), void *);
1012: PETSC_EXTERN PetscErrorCode TSSetPostEventStep(TS, PetscReal);
1013: PETSC_EXTERN PetscErrorCode TSSetPostEventSecondStep(TS, PetscReal);
1014: PETSC_DEPRECATED_FUNCTION(3, 21, 0, "TSSetPostEventSecondStep()", ) static inline PetscErrorCode TSSetPostEventIntervalStep(TS ts, PetscReal dt)
1015: {
1016:   return TSSetPostEventSecondStep(ts, dt);
1017: }
1018: PETSC_EXTERN PetscErrorCode TSSetEventTolerances(TS, PetscReal, PetscReal[]);
1019: PETSC_EXTERN PetscErrorCode TSGetNumEvents(TS, PetscInt *);

1021: /*J
1022:    TSSSPType - string with the name of a `TSSSP` scheme.

1024:    Level: beginner

1026: .seealso: [](ch_ts), `TSSSPSetType()`, `TS`, `TSSSP`
1027: J*/
1028: typedef const char *TSSSPType;
1029: #define TSSSPRKS2  "rks2"
1030: #define TSSSPRKS3  "rks3"
1031: #define TSSSPRK104 "rk104"

1033: PETSC_EXTERN PetscErrorCode    TSSSPSetType(TS, TSSSPType);
1034: PETSC_EXTERN PetscErrorCode    TSSSPGetType(TS, TSSSPType *);
1035: PETSC_EXTERN PetscErrorCode    TSSSPSetNumStages(TS, PetscInt);
1036: PETSC_EXTERN PetscErrorCode    TSSSPGetNumStages(TS, PetscInt *);
1037: PETSC_EXTERN PetscErrorCode    TSSSPInitializePackage(void);
1038: PETSC_EXTERN PetscErrorCode    TSSSPFinalizePackage(void);
1039: PETSC_EXTERN PetscFunctionList TSSSPList;

1041: /*S
1042:    TSAdapt - Abstract object that manages time-step adaptivity

1044:    Level: beginner

1046: .seealso: [](ch_ts), `TS`, `TSGetAdapt()`, `TSAdaptCreate()`, `TSAdaptType`
1047: S*/
1048: typedef struct _p_TSAdapt *TSAdapt;

1050: /*J
1051:    TSAdaptType - String with the name of `TSAdapt` scheme.

1053:    Level: beginner

1055: .seealso: [](ch_ts), `TSGetAdapt()`, `TSAdaptSetType()`, `TS`, `TSAdapt`
1056: J*/
1057: typedef const char *TSAdaptType;
1058: #define TSADAPTNONE    "none"
1059: #define TSADAPTBASIC   "basic"
1060: #define TSADAPTDSP     "dsp"
1061: #define TSADAPTCFL     "cfl"
1062: #define TSADAPTGLEE    "glee"
1063: #define TSADAPTHISTORY "history"

1065: PETSC_EXTERN PetscErrorCode TSGetAdapt(TS, TSAdapt *);
1066: PETSC_EXTERN PetscErrorCode TSAdaptRegister(const char[], PetscErrorCode (*)(TSAdapt));
1067: PETSC_EXTERN PetscErrorCode TSAdaptInitializePackage(void);
1068: PETSC_EXTERN PetscErrorCode TSAdaptFinalizePackage(void);
1069: PETSC_EXTERN PetscErrorCode TSAdaptCreate(MPI_Comm, TSAdapt *);
1070: PETSC_EXTERN PetscErrorCode TSAdaptSetType(TSAdapt, TSAdaptType);
1071: PETSC_EXTERN PetscErrorCode TSAdaptGetType(TSAdapt, TSAdaptType *);
1072: PETSC_EXTERN PetscErrorCode TSAdaptSetOptionsPrefix(TSAdapt, const char[]);
1073: PETSC_EXTERN PetscErrorCode TSAdaptCandidatesClear(TSAdapt);
1074: PETSC_EXTERN PetscErrorCode TSAdaptCandidateAdd(TSAdapt, const char[], PetscInt, PetscInt, PetscReal, PetscReal, PetscBool);
1075: PETSC_EXTERN PetscErrorCode TSAdaptCandidatesGet(TSAdapt, PetscInt *, const PetscInt **, const PetscInt **, const PetscReal **, const PetscReal **);
1076: PETSC_EXTERN PetscErrorCode TSAdaptChoose(TSAdapt, TS, PetscReal, PetscInt *, PetscReal *, PetscBool *);
1077: PETSC_EXTERN PetscErrorCode TSAdaptCheckStage(TSAdapt, TS, PetscReal, Vec, PetscBool *);
1078: PETSC_EXTERN PetscErrorCode TSAdaptView(TSAdapt, PetscViewer);
1079: PETSC_EXTERN PetscErrorCode TSAdaptLoad(TSAdapt, PetscViewer);
1080: PETSC_EXTERN PetscErrorCode TSAdaptSetFromOptions(TSAdapt, PetscOptionItems *);
1081: PETSC_EXTERN PetscErrorCode TSAdaptReset(TSAdapt);
1082: PETSC_EXTERN PetscErrorCode TSAdaptDestroy(TSAdapt *);
1083: PETSC_EXTERN PetscErrorCode TSAdaptSetMonitor(TSAdapt, PetscBool);
1084: PETSC_EXTERN PetscErrorCode TSAdaptSetAlwaysAccept(TSAdapt, PetscBool);
1085: PETSC_EXTERN PetscErrorCode TSAdaptSetSafety(TSAdapt, PetscReal, PetscReal);
1086: PETSC_EXTERN PetscErrorCode TSAdaptGetSafety(TSAdapt, PetscReal *, PetscReal *);
1087: PETSC_EXTERN PetscErrorCode TSAdaptSetMaxIgnore(TSAdapt, PetscReal);
1088: PETSC_EXTERN PetscErrorCode TSAdaptGetMaxIgnore(TSAdapt, PetscReal *);
1089: PETSC_EXTERN PetscErrorCode TSAdaptSetClip(TSAdapt, PetscReal, PetscReal);
1090: PETSC_EXTERN PetscErrorCode TSAdaptGetClip(TSAdapt, PetscReal *, PetscReal *);
1091: PETSC_EXTERN PetscErrorCode TSAdaptSetScaleSolveFailed(TSAdapt, PetscReal);
1092: PETSC_EXTERN PetscErrorCode TSAdaptGetScaleSolveFailed(TSAdapt, PetscReal *);
1093: PETSC_EXTERN PetscErrorCode TSAdaptSetStepLimits(TSAdapt, PetscReal, PetscReal);
1094: PETSC_EXTERN PetscErrorCode TSAdaptGetStepLimits(TSAdapt, PetscReal *, PetscReal *);
1095: PETSC_EXTERN PetscErrorCode TSAdaptSetCheckStage(TSAdapt, PetscErrorCode (*)(TSAdapt, TS, PetscReal, Vec, PetscBool *));
1096: PETSC_EXTERN PetscErrorCode TSAdaptHistorySetHistory(TSAdapt, PetscInt n, PetscReal hist[], PetscBool);
1097: PETSC_EXTERN PetscErrorCode TSAdaptHistorySetTrajectory(TSAdapt, TSTrajectory, PetscBool);
1098: PETSC_EXTERN PetscErrorCode TSAdaptHistoryGetStep(TSAdapt, PetscInt, PetscReal *, PetscReal *);
1099: PETSC_EXTERN PetscErrorCode TSAdaptSetTimeStepIncreaseDelay(TSAdapt, PetscInt);
1100: PETSC_EXTERN PetscErrorCode TSAdaptDSPSetFilter(TSAdapt, const char *);
1101: PETSC_EXTERN PetscErrorCode TSAdaptDSPSetPID(TSAdapt, PetscReal, PetscReal, PetscReal);

1103: /*S
1104:    TSGLLEAdapt - Abstract object that manages time-step adaptivity for `TSGLLE`

1106:    Level: beginner

1108:    Developer Note:
1109:    This functionality should be replaced by the `TSAdapt`.

1111: .seealso: [](ch_ts), `TS`, `TSGLLE`, `TSGLLEAdaptCreate()`, `TSGLLEAdaptType`
1112: S*/
1113: typedef struct _p_TSGLLEAdapt *TSGLLEAdapt;

1115: /*J
1116:    TSGLLEAdaptType - String with the name of `TSGLLEAdapt` scheme

1118:    Level: beginner

1120:    Developer Note:
1121:    This functionality should be replaced by the `TSAdaptType`.

1123: .seealso: [](ch_ts), `TSGLLEAdaptSetType()`, `TS`
1124: J*/
1125: typedef const char *TSGLLEAdaptType;
1126: #define TSGLLEADAPT_NONE "none"
1127: #define TSGLLEADAPT_SIZE "size"
1128: #define TSGLLEADAPT_BOTH "both"

1130: PETSC_EXTERN PetscErrorCode TSGLLEAdaptRegister(const char[], PetscErrorCode (*)(TSGLLEAdapt));
1131: PETSC_EXTERN PetscErrorCode TSGLLEAdaptInitializePackage(void);
1132: PETSC_EXTERN PetscErrorCode TSGLLEAdaptFinalizePackage(void);
1133: PETSC_EXTERN PetscErrorCode TSGLLEAdaptCreate(MPI_Comm, TSGLLEAdapt *);
1134: PETSC_EXTERN PetscErrorCode TSGLLEAdaptSetType(TSGLLEAdapt, TSGLLEAdaptType);
1135: PETSC_EXTERN PetscErrorCode TSGLLEAdaptSetOptionsPrefix(TSGLLEAdapt, const char[]);
1136: PETSC_EXTERN PetscErrorCode TSGLLEAdaptChoose(TSGLLEAdapt, PetscInt, const PetscInt[], const PetscReal[], const PetscReal[], PetscInt, PetscReal, PetscReal, PetscInt *, PetscReal *, PetscBool *);
1137: PETSC_EXTERN PetscErrorCode TSGLLEAdaptView(TSGLLEAdapt, PetscViewer);
1138: PETSC_EXTERN PetscErrorCode TSGLLEAdaptSetFromOptions(TSGLLEAdapt, PetscOptionItems *);
1139: PETSC_EXTERN PetscErrorCode TSGLLEAdaptDestroy(TSGLLEAdapt *);

1141: /*J
1142:    TSGLLEAcceptType - String with the name of `TSGLLEAccept` scheme

1144:    Level: beginner

1146: .seealso: [](ch_ts), `TSGLLESetAcceptType()`, `TS`, `TSGLLEAccept`
1147: J*/
1148: typedef const char *TSGLLEAcceptType;
1149: #define TSGLLEACCEPT_ALWAYS "always"

1151: /*S
1152:   TSGLLEAcceptFn - A prototype of a `TS` accept function that would be passed to `TSGLLEAcceptRegister()`

1154:   Calling Sequence:
1155: + ts  - timestep context
1156: . nt - time to end of solution time
1157: . h - the proposed step-size
1158: . enorm - unknown
1159: - accept - output, if the proposal is accepted

1161:   Level: beginner

1163:   Note:
1164:   The deprecated `TSGLLEAcceptFunction` still works as a replacement for `TSGLLEAcceptFn` *

1166: .seealso: [](ch_ts), `TS`, `TSSetRHSFunction()`, `DMTSSetRHSFunction()`, `TSIFunctionFn`,
1167: `TSIJacobianFn`, `TSRHSJacobianFn`, `TSGLLEAcceptRegister()`
1168: S*/
1169: PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSGLLEAcceptFn)(TS ts, PetscReal nt, PetscReal h, const PetscReal enorm[], PetscBool *accept);

1171: PETSC_EXTERN_TYPEDEF typedef TSGLLEAcceptFn *TSGLLEAcceptFunction;

1173: PETSC_EXTERN PetscErrorCode TSGLLEAcceptRegister(const char[], TSGLLEAcceptFn *);

1175: /*J
1176:   TSGLLEType - string with the name of a General Linear `TSGLLE` type

1178:   Level: beginner

1180: .seealso: [](ch_ts), `TS`, `TSGLLE`, `TSGLLESetType()`, `TSGLLERegister()`, `TSGLLEAccept`
1181: J*/
1182: typedef const char *TSGLLEType;
1183: #define TSGLLE_IRKS "irks"

1185: PETSC_EXTERN PetscErrorCode TSGLLERegister(const char[], PetscErrorCode (*)(TS));
1186: PETSC_EXTERN PetscErrorCode TSGLLEInitializePackage(void);
1187: PETSC_EXTERN PetscErrorCode TSGLLEFinalizePackage(void);
1188: PETSC_EXTERN PetscErrorCode TSGLLESetType(TS, TSGLLEType);
1189: PETSC_EXTERN PetscErrorCode TSGLLEGetAdapt(TS, TSGLLEAdapt *);
1190: PETSC_EXTERN PetscErrorCode TSGLLESetAcceptType(TS, TSGLLEAcceptType);

1192: /*J
1193:    TSEIMEXType - String with the name of an Extrapolated IMEX `TSEIMEX` type

1195:    Level: beginner

1197: .seealso: [](ch_ts), `TSEIMEXSetType()`, `TS`, `TSEIMEX`, `TSEIMEXRegister()`
1198: J*/
1199: #define TSEIMEXType char *

1201: PETSC_EXTERN PetscErrorCode TSEIMEXSetMaxRows(TS ts, PetscInt);
1202: PETSC_EXTERN PetscErrorCode TSEIMEXSetRowCol(TS ts, PetscInt, PetscInt);
1203: PETSC_EXTERN PetscErrorCode TSEIMEXSetOrdAdapt(TS, PetscBool);

1205: /*J
1206:    TSRKType - String with the name of a Runge-Kutta `TSRK` type

1208:    Level: beginner

1210: .seealso: [](ch_ts), `TS`, `TSRKSetType()`, `TS`, `TSRK`, `TSRKRegister()`
1211: J*/
1212: typedef const char *TSRKType;
1213: #define TSRK1FE "1fe"
1214: #define TSRK2A  "2a"
1215: #define TSRK2B  "2b"
1216: #define TSRK3   "3"
1217: #define TSRK3BS "3bs"
1218: #define TSRK4   "4"
1219: #define TSRK5F  "5f"
1220: #define TSRK5DP "5dp"
1221: #define TSRK5BS "5bs"
1222: #define TSRK6VR "6vr"
1223: #define TSRK7VR "7vr"
1224: #define TSRK8VR "8vr"

1226: PETSC_EXTERN PetscErrorCode TSRKGetOrder(TS, PetscInt *);
1227: PETSC_EXTERN PetscErrorCode TSRKGetType(TS, TSRKType *);
1228: PETSC_EXTERN PetscErrorCode TSRKSetType(TS, TSRKType);
1229: PETSC_EXTERN PetscErrorCode TSRKGetTableau(TS, PetscInt *, const PetscReal **, const PetscReal **, const PetscReal **, const PetscReal **, PetscInt *, const PetscReal **, PetscBool *);
1230: PETSC_EXTERN PetscErrorCode TSRKSetMultirate(TS, PetscBool);
1231: PETSC_EXTERN PetscErrorCode TSRKGetMultirate(TS, PetscBool *);
1232: PETSC_EXTERN PetscErrorCode TSRKRegister(TSRKType, PetscInt, PetscInt, const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], PetscInt, const PetscReal[]);
1233: PETSC_EXTERN PetscErrorCode TSRKInitializePackage(void);
1234: PETSC_EXTERN PetscErrorCode TSRKFinalizePackage(void);
1235: PETSC_EXTERN PetscErrorCode TSRKRegisterDestroy(void);

1237: /*J
1238:    TSMPRKType - String with the name of a partitioned Runge-Kutta `TSMPRK` type

1240:    Level: beginner

1242: .seealso: [](ch_ts), `TSMPRKSetType()`, `TS`, `TSMPRK`, `TSMPRKRegister()`
1243: J*/
1244: typedef const char *TSMPRKType;
1245: #define TSMPRK2A22 "2a22"
1246: #define TSMPRK2A23 "2a23"
1247: #define TSMPRK2A32 "2a32"
1248: #define TSMPRK2A33 "2a33"
1249: #define TSMPRKP2   "p2"
1250: #define TSMPRKP3   "p3"

1252: PETSC_EXTERN PetscErrorCode TSMPRKGetType(TS ts, TSMPRKType *);
1253: PETSC_EXTERN PetscErrorCode TSMPRKSetType(TS ts, TSMPRKType);
1254: 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[]);
1255: PETSC_EXTERN PetscErrorCode TSMPRKInitializePackage(void);
1256: PETSC_EXTERN PetscErrorCode TSMPRKFinalizePackage(void);
1257: PETSC_EXTERN PetscErrorCode TSMPRKRegisterDestroy(void);

1259: /*J
1260:    TSIRKType - String with the name of an implicit Runge-Kutta `TSIRK` type

1262:    Level: beginner

1264: .seealso: [](ch_ts), `TSIRKSetType()`, `TS`, `TSIRK`, `TSIRKRegister()`
1265: J*/
1266: typedef const char *TSIRKType;
1267: #define TSIRKGAUSS "gauss"

1269: PETSC_EXTERN PetscErrorCode TSIRKGetType(TS, TSIRKType *);
1270: PETSC_EXTERN PetscErrorCode TSIRKSetType(TS, TSIRKType);
1271: PETSC_EXTERN PetscErrorCode TSIRKGetNumStages(TS, PetscInt *);
1272: PETSC_EXTERN PetscErrorCode TSIRKSetNumStages(TS, PetscInt);
1273: PETSC_EXTERN PetscErrorCode TSIRKRegister(const char[], PetscErrorCode (*function)(TS));
1274: PETSC_EXTERN PetscErrorCode TSIRKTableauCreate(TS, PetscInt, const PetscReal *, const PetscReal *, const PetscReal *, const PetscReal *, const PetscScalar *, const PetscScalar *, const PetscScalar *);
1275: PETSC_EXTERN PetscErrorCode TSIRKInitializePackage(void);
1276: PETSC_EXTERN PetscErrorCode TSIRKFinalizePackage(void);
1277: PETSC_EXTERN PetscErrorCode TSIRKRegisterDestroy(void);

1279: /*J
1280:    TSGLEEType - String with the name of a General Linear with Error Estimation `TSGLEE` type

1282:    Level: beginner

1284: .seealso: [](ch_ts), `TSGLEESetType()`, `TS`, `TSGLEE`, `TSGLEERegister()`
1285: J*/
1286: typedef const char *TSGLEEType;
1287: #define TSGLEEi1      "BE1"
1288: #define TSGLEE23      "23"
1289: #define TSGLEE24      "24"
1290: #define TSGLEE25I     "25i"
1291: #define TSGLEE35      "35"
1292: #define TSGLEEEXRK2A  "exrk2a"
1293: #define TSGLEERK32G1  "rk32g1"
1294: #define TSGLEERK285EX "rk285ex"

1296: /*J
1297:    TSGLEEMode - String with the mode of error estimation for a General Linear with Error Estimation `TSGLEE` type

1299:    Level: beginner

1301: .seealso: [](ch_ts), `TSGLEESetMode()`, `TS`, `TSGLEE`, `TSGLEERegister()`
1302: J*/
1303: PETSC_EXTERN PetscErrorCode TSGLEEGetType(TS ts, TSGLEEType *);
1304: PETSC_EXTERN PetscErrorCode TSGLEESetType(TS ts, TSGLEEType);
1305: 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[]);
1306: PETSC_EXTERN PetscErrorCode TSGLEERegisterAll(void);
1307: PETSC_EXTERN PetscErrorCode TSGLEEFinalizePackage(void);
1308: PETSC_EXTERN PetscErrorCode TSGLEEInitializePackage(void);
1309: PETSC_EXTERN PetscErrorCode TSGLEERegisterDestroy(void);

1311: /*J
1312:    TSARKIMEXType - String with the name of an Additive Runge-Kutta IMEX `TSARKIMEX` type

1314:    Level: beginner

1316: .seealso: [](ch_ts), `TSARKIMEXSetType()`, `TS`, `TSARKIMEX`, `TSARKIMEXRegister()`
1317: J*/
1318: typedef const char *TSARKIMEXType;
1319: #define TSARKIMEX1BEE   "1bee"
1320: #define TSARKIMEXA2     "a2"
1321: #define TSARKIMEXL2     "l2"
1322: #define TSARKIMEXARS122 "ars122"
1323: #define TSARKIMEX2C     "2c"
1324: #define TSARKIMEX2D     "2d"
1325: #define TSARKIMEX2E     "2e"
1326: #define TSARKIMEXPRSSP2 "prssp2"
1327: #define TSARKIMEX3      "3"
1328: #define TSARKIMEXBPR3   "bpr3"
1329: #define TSARKIMEXARS443 "ars443"
1330: #define TSARKIMEX4      "4"
1331: #define TSARKIMEX5      "5"
1332: PETSC_EXTERN PetscErrorCode TSARKIMEXGetType(TS ts, TSARKIMEXType *);
1333: PETSC_EXTERN PetscErrorCode TSARKIMEXSetType(TS ts, TSARKIMEXType);
1334: PETSC_EXTERN PetscErrorCode TSARKIMEXSetFullyImplicit(TS, PetscBool);
1335: PETSC_EXTERN PetscErrorCode TSARKIMEXGetFullyImplicit(TS, PetscBool *);
1336: PETSC_EXTERN PetscErrorCode TSARKIMEXSetFastSlowSplit(TS, PetscBool);
1337: PETSC_EXTERN PetscErrorCode TSARKIMEXGetFastSlowSplit(TS, PetscBool *);
1338: 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[]);
1339: PETSC_EXTERN PetscErrorCode TSARKIMEXInitializePackage(void);
1340: PETSC_EXTERN PetscErrorCode TSARKIMEXFinalizePackage(void);
1341: PETSC_EXTERN PetscErrorCode TSARKIMEXRegisterDestroy(void);

1343: /*J
1344:    TSDIRKType - String with the name of a Diagonally Implicit Runge-Kutta `TSDIRK` type

1346:    Level: beginner

1348: .seealso: [](ch_ts), `TSDIRKSetType()`, `TS`, `TSDIRK`, `TSDIRKRegister()`
1349: J*/
1350: typedef const char *TSDIRKType;
1351: #define TSDIRKS212      "s212"
1352: #define TSDIRKES122SAL  "es122sal"
1353: #define TSDIRKES213SAL  "es213sal"
1354: #define TSDIRKES324SAL  "es324sal"
1355: #define TSDIRKES325SAL  "es325sal"
1356: #define TSDIRK657A      "657a"
1357: #define TSDIRKES648SA   "es648sa"
1358: #define TSDIRK658A      "658a"
1359: #define TSDIRKS659A     "s659a"
1360: #define TSDIRK7510SAL   "7510sal"
1361: #define TSDIRKES7510SA  "es7510sa"
1362: #define TSDIRK759A      "759a"
1363: #define TSDIRKS7511SAL  "s7511sal"
1364: #define TSDIRK8614A     "8614a"
1365: #define TSDIRK8616SAL   "8616sal"
1366: #define TSDIRKES8516SAL "es8516sal"
1367: PETSC_EXTERN PetscErrorCode TSDIRKGetType(TS ts, TSDIRKType *);
1368: PETSC_EXTERN PetscErrorCode TSDIRKSetType(TS ts, TSDIRKType);
1369: PETSC_EXTERN PetscErrorCode TSDIRKRegister(TSDIRKType, PetscInt, PetscInt, const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], PetscInt, const PetscReal[]);

1371: /*J
1372:    TSRosWType - String with the name of a Rosenbrock-W `TSROSW` type

1374:    Level: beginner

1376: .seealso: [](ch_ts), `TSRosWSetType()`, `TS`, `TSROSW`, `TSRosWRegister()`
1377: J*/
1378: typedef const char *TSRosWType;
1379: #define TSROSW2M          "2m"
1380: #define TSROSW2P          "2p"
1381: #define TSROSWRA3PW       "ra3pw"
1382: #define TSROSWRA34PW2     "ra34pw2"
1383: #define TSROSWR34PRW      "r34prw"
1384: #define TSROSWR3PRL2      "r3prl2"
1385: #define TSROSWRODAS3      "rodas3"
1386: #define TSROSWRODASPR     "rodaspr"
1387: #define TSROSWRODASPR2    "rodaspr2"
1388: #define TSROSWSANDU3      "sandu3"
1389: #define TSROSWASSP3P3S1C  "assp3p3s1c"
1390: #define TSROSWLASSP3P4S2C "lassp3p4s2c"
1391: #define TSROSWLLSSP3P4S2C "llssp3p4s2c"
1392: #define TSROSWARK3        "ark3"
1393: #define TSROSWTHETA1      "theta1"
1394: #define TSROSWTHETA2      "theta2"
1395: #define TSROSWGRK4T       "grk4t"
1396: #define TSROSWSHAMP4      "shamp4"
1397: #define TSROSWVELDD4      "veldd4"
1398: #define TSROSW4L          "4l"

1400: PETSC_EXTERN PetscErrorCode TSRosWGetType(TS, TSRosWType *);
1401: PETSC_EXTERN PetscErrorCode TSRosWSetType(TS, TSRosWType);
1402: PETSC_EXTERN PetscErrorCode TSRosWSetRecomputeJacobian(TS, PetscBool);
1403: PETSC_EXTERN PetscErrorCode TSRosWRegister(TSRosWType, PetscInt, PetscInt, const PetscReal[], const PetscReal[], const PetscReal[], const PetscReal[], PetscInt, const PetscReal[]);
1404: PETSC_EXTERN PetscErrorCode TSRosWRegisterRos4(TSRosWType, PetscReal, PetscReal, PetscReal, PetscReal, PetscReal);
1405: PETSC_EXTERN PetscErrorCode TSRosWInitializePackage(void);
1406: PETSC_EXTERN PetscErrorCode TSRosWFinalizePackage(void);
1407: PETSC_EXTERN PetscErrorCode TSRosWRegisterDestroy(void);

1409: PETSC_EXTERN PetscErrorCode TSBDFSetOrder(TS, PetscInt);
1410: PETSC_EXTERN PetscErrorCode TSBDFGetOrder(TS, PetscInt *);

1412: /*J
1413:   TSBasicSymplecticType - String with the name of a basic symplectic integration `TSBASICSYMPLECTIC` type

1415:   Level: beginner

1417: .seealso: [](ch_ts), `TSBasicSymplecticSetType()`, `TS`, `TSBASICSYMPLECTIC`, `TSBasicSymplecticRegister()`
1418: J*/
1419: typedef const char *TSBasicSymplecticType;
1420: #define TSBASICSYMPLECTICSIEULER   "1"
1421: #define TSBASICSYMPLECTICVELVERLET "2"
1422: #define TSBASICSYMPLECTIC3         "3"
1423: #define TSBASICSYMPLECTIC4         "4"
1424: PETSC_EXTERN PetscErrorCode TSBasicSymplecticSetType(TS, TSBasicSymplecticType);
1425: PETSC_EXTERN PetscErrorCode TSBasicSymplecticGetType(TS, TSBasicSymplecticType *);
1426: PETSC_EXTERN PetscErrorCode TSBasicSymplecticRegister(TSBasicSymplecticType, PetscInt, PetscInt, PetscReal[], PetscReal[]);
1427: PETSC_EXTERN PetscErrorCode TSBasicSymplecticRegisterAll(void);
1428: PETSC_EXTERN PetscErrorCode TSBasicSymplecticInitializePackage(void);
1429: PETSC_EXTERN PetscErrorCode TSBasicSymplecticFinalizePackage(void);
1430: PETSC_EXTERN PetscErrorCode TSBasicSymplecticRegisterDestroy(void);

1432: /*J
1433:   TSDISCGRAD - The Discrete Gradient integrator is a timestepper for Hamiltonian systems designed to conserve the first integral (energy),
1434:   but also has the property for some systems of monotonicity in a functional.

1436:   Level: beginner

1438: .seealso: [](ch_ts), `TS`, TSDiscGradSetFormulation()`, `TSDiscGradGetFormulation()`
1439: J*/
1440: PETSC_EXTERN PetscErrorCode TSDiscGradSetFormulation(TS, PetscErrorCode (*)(TS, PetscReal, Vec, Mat, void *), PetscErrorCode (*)(TS, PetscReal, Vec, PetscScalar *, void *), PetscErrorCode (*)(TS, PetscReal, Vec, Vec, void *), void *);
1441: PETSC_EXTERN PetscErrorCode TSDiscGradGetFormulation(TS, PetscErrorCode (**)(TS, PetscReal, Vec, Mat, void *), PetscErrorCode (**)(TS, PetscReal, Vec, PetscScalar *, void *), PetscErrorCode (**)(TS, PetscReal, Vec, Vec, void *), void *);
1442: PETSC_EXTERN PetscErrorCode TSDiscGradIsGonzalez(TS, PetscBool *);
1443: PETSC_EXTERN PetscErrorCode TSDiscGradUseGonzalez(TS, PetscBool);

1445: /*
1446:        PETSc interface to Sundials
1447: */
1448: #ifdef PETSC_HAVE_SUNDIALS2
1449: typedef enum {
1450:   SUNDIALS_ADAMS = 1,
1451:   SUNDIALS_BDF   = 2
1452: } TSSundialsLmmType;
1453: PETSC_EXTERN const char *const TSSundialsLmmTypes[];
1454: typedef enum {
1455:   SUNDIALS_MODIFIED_GS  = 1,
1456:   SUNDIALS_CLASSICAL_GS = 2
1457: } TSSundialsGramSchmidtType;
1458: PETSC_EXTERN const char *const TSSundialsGramSchmidtTypes[];

1460: PETSC_EXTERN PetscErrorCode TSSundialsSetType(TS, TSSundialsLmmType);
1461: PETSC_EXTERN PetscErrorCode TSSundialsGetPC(TS, PC *);
1462: PETSC_EXTERN PetscErrorCode TSSundialsSetTolerance(TS, PetscReal, PetscReal);
1463: PETSC_EXTERN PetscErrorCode TSSundialsSetMinTimeStep(TS, PetscReal);
1464: PETSC_EXTERN PetscErrorCode TSSundialsSetMaxTimeStep(TS, PetscReal);
1465: PETSC_EXTERN PetscErrorCode TSSundialsGetIterations(TS, PetscInt *, PetscInt *);
1466: PETSC_EXTERN PetscErrorCode TSSundialsSetGramSchmidtType(TS, TSSundialsGramSchmidtType);
1467: PETSC_EXTERN PetscErrorCode TSSundialsSetGMRESRestart(TS, PetscInt);
1468: PETSC_EXTERN PetscErrorCode TSSundialsSetLinearTolerance(TS, PetscReal);
1469: PETSC_EXTERN PetscErrorCode TSSundialsMonitorInternalSteps(TS, PetscBool);
1470: PETSC_EXTERN PetscErrorCode TSSundialsSetMaxl(TS, PetscInt);
1471: PETSC_EXTERN PetscErrorCode TSSundialsSetMaxord(TS, PetscInt);
1472: PETSC_EXTERN PetscErrorCode TSSundialsSetUseDense(TS, PetscBool);
1473: #endif

1475: PETSC_EXTERN PetscErrorCode TSThetaSetTheta(TS, PetscReal);
1476: PETSC_EXTERN PetscErrorCode TSThetaGetTheta(TS, PetscReal *);
1477: PETSC_EXTERN PetscErrorCode TSThetaGetEndpoint(TS, PetscBool *);
1478: PETSC_EXTERN PetscErrorCode TSThetaSetEndpoint(TS, PetscBool);

1480: PETSC_EXTERN PetscErrorCode TSAlphaSetRadius(TS, PetscReal);
1481: PETSC_EXTERN PetscErrorCode TSAlphaSetParams(TS, PetscReal, PetscReal, PetscReal);
1482: PETSC_EXTERN PetscErrorCode TSAlphaGetParams(TS, PetscReal *, PetscReal *, PetscReal *);

1484: PETSC_EXTERN PetscErrorCode TSAlpha2SetRadius(TS, PetscReal);
1485: PETSC_EXTERN PetscErrorCode TSAlpha2SetParams(TS, PetscReal, PetscReal, PetscReal, PetscReal);
1486: PETSC_EXTERN PetscErrorCode TSAlpha2GetParams(TS, PetscReal *, PetscReal *, PetscReal *, PetscReal *);

1488: /*S
1489:   TSAlpha2PredictorFn - A callback to set the predictor (i.e., the initial guess for the nonlinear solver) in
1490:   a second-order generalized-alpha time integrator.

1492:   Calling Sequence:
1493: + ts   - the `TS` context obtained from `TSCreate()`
1494: . X0   - the previous time step's state vector
1495: . V0   - the previous time step's first derivative of the state vector
1496: . A0   - the previous time step's second derivative of the state vector
1497: . X1   - the vector into which the initial guess for the current time step will be written
1498: - ctx  - [optional] user-defined context for the predictor evaluation routine (may be `NULL`)

1500:   Level: intermediate

1502:   Note:
1503:   The deprecated `TSAlpha2Predictor` still works as a replacement for `TSAlpha2PredictorFn` *.

1505: .seealso: [](ch_ts), `TS`, `TSAlpha2SetPredictor()`
1506: S*/
1507: PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSAlpha2PredictorFn)(TS ts, Vec X0, Vec V0, Vec A0, Vec X1, void *ctx);

1509: PETSC_EXTERN_TYPEDEF typedef TSAlpha2PredictorFn *TSAlpha2Predictor;

1511: PETSC_EXTERN PetscErrorCode TSAlpha2SetPredictor(TS, TSAlpha2PredictorFn *, void *ctx);

1513: PETSC_EXTERN PetscErrorCode TSSetDM(TS, DM);
1514: PETSC_EXTERN PetscErrorCode TSGetDM(TS, DM *);

1516: PETSC_EXTERN PetscErrorCode SNESTSFormFunction(SNES, Vec, Vec, void *);
1517: PETSC_EXTERN PetscErrorCode SNESTSFormJacobian(SNES, Vec, Mat, Mat, void *);

1519: PETSC_EXTERN PetscErrorCode TSRHSJacobianTest(TS, PetscBool *);
1520: PETSC_EXTERN PetscErrorCode TSRHSJacobianTestTranspose(TS, PetscBool *);

1522: PETSC_EXTERN PetscErrorCode TSGetComputeInitialCondition(TS, PetscErrorCode (**)(TS, Vec));
1523: PETSC_EXTERN PetscErrorCode TSSetComputeInitialCondition(TS, PetscErrorCode (*)(TS, Vec));
1524: PETSC_EXTERN PetscErrorCode TSComputeInitialCondition(TS, Vec);
1525: PETSC_EXTERN PetscErrorCode TSGetComputeExactError(TS, PetscErrorCode (**)(TS, Vec, Vec));
1526: PETSC_EXTERN PetscErrorCode TSSetComputeExactError(TS, PetscErrorCode (*)(TS, Vec, Vec));
1527: PETSC_EXTERN PetscErrorCode TSComputeExactError(TS, Vec, Vec);
1528: PETSC_EXTERN PetscErrorCode PetscConvEstUseTS(PetscConvEst, PetscBool);

1530: PETSC_EXTERN PetscErrorCode TSSetMatStructure(TS, MatStructure);