Actual source code: petscts.h

  1: /*
  2:    User interface for the timestepping package. This is package
  3:    is for use in solving time-dependent PDEs.
  4: */
 7:  #include petscsnes.h

 10: /*S
 11:      TS - Abstract PETSc object that manages all time-steppers (ODE integrators)

 13:    Level: beginner

 15:   Concepts: ODE solvers

 17: .seealso:  TSCreate(), TSSetType(), TSType, SNES, KSP, PC
 18: S*/
 19: typedef struct _p_TS* TS;

 21: /*E
 22:     TSType - String with the name of a PETSc TS method or the creation function
 23:        with an optional dynamic library name, for example
 24:        http://www.mcs.anl.gov/petsc/lib.a:mytscreate()

 26:    Level: beginner

 28: .seealso: TSSetType(), TS
 29: E*/
 30: #define TSType char*
 31: #define TS_EULER           "euler"
 32: #define TS_BEULER          "beuler"
 33: #define TS_PSEUDO          "pseudo"
 34: #define TS_CRANK_NICHOLSON "crank-nicholson"
 35: #define TS_SUNDIALS        "sundials"
 36: #define TS_RUNGE_KUTTA     "runge-kutta"
 37: #define TS_PYTHON          "python"

 39: /*E
 40:     TSProblemType - Determines the type of problem this TS object is to be used to solve

 42:    Level: beginner

 44: .seealso: TSCreate()
 45: E*/
 46: typedef enum {TS_LINEAR,TS_NONLINEAR} TSProblemType;

 48: /* Logging support */

 51: EXTERN PetscErrorCode   TSInitializePackage(const char[]);

 53: EXTERN PetscErrorCode   TSCreate(MPI_Comm,TS*);
 54: EXTERN PetscErrorCode   TSDestroy(TS);

 56: EXTERN PetscErrorCode   TSSetProblemType(TS,TSProblemType);
 57: EXTERN PetscErrorCode   TSGetProblemType(TS,TSProblemType*);
 58: EXTERN PetscErrorCode   TSMonitorSet(TS,PetscErrorCode(*)(TS,PetscInt,PetscReal,Vec,void*),void *,PetscErrorCode (*)(void*));
 59: EXTERN PetscErrorCode   TSMonitorCancel(TS);

 61: EXTERN PetscErrorCode   TSSetOptionsPrefix(TS,const char[]);
 62: EXTERN PetscErrorCode   TSAppendOptionsPrefix(TS,const char[]);
 63: EXTERN PetscErrorCode   TSGetOptionsPrefix(TS,const char *[]);
 64: EXTERN PetscErrorCode   TSSetFromOptions(TS);
 65: EXTERN PetscErrorCode   TSSetUp(TS);

 67: EXTERN PetscErrorCode   TSSetSolution(TS,Vec);
 68: EXTERN PetscErrorCode   TSGetSolution(TS,Vec*);

 70: EXTERN PetscErrorCode   TSSetDuration(TS,PetscInt,PetscReal);
 71: EXTERN PetscErrorCode   TSGetDuration(TS,PetscInt*,PetscReal*);

 73: EXTERN PetscErrorCode   TSMonitorDefault(TS,PetscInt,PetscReal,Vec,void*);
 74: EXTERN PetscErrorCode   TSMonitorSolution(TS,PetscInt,PetscReal,Vec,void*);
 75: EXTERN PetscErrorCode   TSStep(TS,PetscInt *,PetscReal*);
 76: EXTERN PetscErrorCode   TSSolve(TS,Vec);


 79: EXTERN PetscErrorCode   TSSetInitialTimeStep(TS,PetscReal,PetscReal);
 80: EXTERN PetscErrorCode   TSGetTimeStep(TS,PetscReal*);
 81: EXTERN PetscErrorCode   TSGetTime(TS,PetscReal*);
 82: EXTERN PetscErrorCode   TSSetTime(TS,PetscReal);
 83: EXTERN PetscErrorCode   TSGetTimeStepNumber(TS,PetscInt*);
 84: EXTERN PetscErrorCode   TSSetTimeStep(TS,PetscReal);

 86: EXTERN PetscErrorCode   TSSetRHSFunction(TS,PetscErrorCode (*)(TS,PetscReal,Vec,Vec,void*),void*);
 87: EXTERN PetscErrorCode   TSSetMatrices(TS,Mat,PetscErrorCode (*)(TS,PetscReal,Mat*,Mat*,MatStructure*,void*),Mat,PetscErrorCode (*)(TS,PetscReal,Mat*,Mat*,MatStructure*,void*),MatStructure,void*);
 88: EXTERN PetscErrorCode   TSGetMatrices(TS,Mat*,Mat*,void**);
 89: EXTERN PetscErrorCode   TSSetRHSJacobian(TS,Mat,Mat,PetscErrorCode (*)(TS,PetscReal,Vec,Mat*,Mat*,MatStructure*,void*),void*);
 90: EXTERN PetscErrorCode   TSGetRHSJacobian(TS,Mat*,Mat*,void**);

 92: EXTERN PetscErrorCode   TSDefaultComputeJacobianColor(TS,PetscReal,Vec,Mat*,Mat*,MatStructure*,void*);
 93: EXTERN PetscErrorCode   TSDefaultComputeJacobian(TS,PetscReal,Vec,Mat*,Mat*,MatStructure*,void*);

 95: EXTERN PetscErrorCode   TSSetPreStep(TS, PetscErrorCode (*)(TS));
 96: EXTERN PetscErrorCode   TSSetUpdate(TS, PetscErrorCode (*)(TS, PetscReal, PetscReal *));
 97: EXTERN PetscErrorCode   TSSetPostUpdate(TS, PetscErrorCode (*)(TS, PetscReal, PetscReal *));
 98: EXTERN PetscErrorCode   TSSetPostStep(TS, PetscErrorCode (*)(TS));
 99: EXTERN PetscErrorCode   TSDefaultPreStep(TS);
100: EXTERN PetscErrorCode   TSDefaultUpdate(TS, PetscReal, PetscReal *);
101: EXTERN PetscErrorCode   TSDefaultPostStep(TS);

103: EXTERN PetscErrorCode   TSPseudoSetTimeStep(TS,PetscErrorCode(*)(TS,PetscReal*,void*),void*);
104: EXTERN PetscErrorCode   TSPseudoDefaultTimeStep(TS,PetscReal*,void*);
105: EXTERN PetscErrorCode   TSPseudoComputeTimeStep(TS,PetscReal *);

107: EXTERN PetscErrorCode   TSPseudoSetVerifyTimeStep(TS,PetscErrorCode(*)(TS,Vec,void*,PetscReal*,PetscTruth*),void*);
108: EXTERN PetscErrorCode   TSPseudoDefaultVerifyTimeStep(TS,Vec,void*,PetscReal*,PetscTruth*);
109: EXTERN PetscErrorCode   TSPseudoVerifyTimeStep(TS,Vec,PetscReal*,PetscTruth*);
110: EXTERN PetscErrorCode   TSPseudoSetTimeStepIncrement(TS,PetscReal);
111: EXTERN PetscErrorCode   TSPseudoIncrementDtFromInitialDt(TS);

113: EXTERN PetscErrorCode   TSPythonSetType(TS,const char[]);

115: EXTERN PetscErrorCode   TSComputeRHSFunction(TS,PetscReal,Vec,Vec);
116: EXTERN PetscErrorCode   TSComputeRHSJacobian(TS,PetscReal,Vec,Mat*,Mat*,MatStructure*);

118: /* Dynamic creation and loading functions */
121: EXTERN PetscErrorCode   TSGetType(TS,const TSType*);
122: EXTERN PetscErrorCode   TSSetType(TS,const TSType);
123: EXTERN PetscErrorCode   TSRegister(const char[], const char[], const char[], PetscErrorCode (*)(TS));
124: EXTERN PetscErrorCode   TSRegisterAll(const char[]);
125: EXTERN PetscErrorCode   TSRegisterDestroy(void);

127: /*MC
128:   TSRegisterDynamic - Adds a creation method to the TS package.

130:   Synopsis:
131:   PetscErrorCode TSRegisterDynamic(char *name, char *path, char *func_name, PetscErrorCode (*create_func)(TS))

133:   Not Collective

135:   Input Parameters:
136: + name        - The name of a new user-defined creation routine
137: . path        - The path (either absolute or relative) of the library containing this routine
138: . func_name   - The name of the creation routine
139: - create_func - The creation routine itself

141:   Notes:
142:   TSRegisterDynamic() may be called multiple times to add several user-defined tses.

144:   If dynamic libraries are used, then the fourth input argument (create_func) is ignored.

146:   Sample usage:
147: .vb
148:   TSRegisterDynamic("my_ts", "/home/username/my_lib/lib/libO/solaris/libmy.a", "MyTSCreate", MyTSCreate);
149: .ve

151:   Then, your ts type can be chosen with the procedural interface via
152: .vb
153:     TSCreate(MPI_Comm, TS *);
154:     TSSetType(vec, "my_ts")
155: .ve
156:   or at runtime via the option
157: .vb
158:     -ts_type my_ts
159: .ve

161:   Notes: $PETSC_ARCH occuring in pathname will be replaced with appropriate values.
162:         If your function is not being put into a shared library then use TSRegister() instead

164:   Level: advanced

166: .keywords: TS, register
167: .seealso: TSRegisterAll(), TSRegisterDestroy()
168: M*/
169: #if defined(PETSC_USE_DYNAMIC_LIBRARIES)
170: #define TSRegisterDynamic(a,b,c,d) TSRegister(a,b,c,0)
171: #else
172: #define TSRegisterDynamic(a,b,c,d) TSRegister(a,b,c,d)
173: #endif

175: EXTERN PetscErrorCode   TSGetSNES(TS,SNES*);
176: EXTERN PetscErrorCode   TSGetKSP(TS,KSP*);

178: EXTERN PetscErrorCode   TSView(TS,PetscViewer);
179: EXTERN PetscErrorCode   TSViewFromOptions(TS,const char[]);

181: EXTERN PetscErrorCode   TSSetApplicationContext(TS,void *);
182: EXTERN PetscErrorCode   TSGetApplicationContext(TS,void **);

184: EXTERN PetscErrorCode   TSMonitorLGCreate(const char[],const char[],int,int,int,int,PetscDrawLG *);
185: EXTERN PetscErrorCode   TSMonitorLG(TS,PetscInt,PetscReal,Vec,void *);
186: EXTERN PetscErrorCode   TSMonitorLGDestroy(PetscDrawLG);

188: /*
189:        PETSc interface to Sundials
190: */
191: #ifdef PETSC_HAVE_SUNDIALS
192: typedef enum { SUNDIALS_ADAMS=1,SUNDIALS_BDF=2} TSSundialsLmmType;
194: typedef enum { SUNDIALS_MODIFIED_GS = 1,SUNDIALS_CLASSICAL_GS = 2 } TSSundialsGramSchmidtType;
196: EXTERN PetscErrorCode   TSSundialsSetType(TS,TSSundialsLmmType);
197: EXTERN PetscErrorCode   TSSundialsGetPC(TS,PC*);
198: EXTERN PetscErrorCode   TSSundialsSetTolerance(TS,PetscReal,PetscReal);
199: EXTERN PetscErrorCode   TSSundialsGetIterations(TS,PetscInt *,PetscInt *);
200: EXTERN PetscErrorCode   TSSundialsSetGramSchmidtType(TS,TSSundialsGramSchmidtType);
201: EXTERN PetscErrorCode   TSSundialsSetGMRESRestart(TS,PetscInt);
202: EXTERN PetscErrorCode   TSSundialsSetLinearTolerance(TS,PetscReal);
203: EXTERN PetscErrorCode   TSSundialsSetExactFinalTime(TS,PetscTruth);
204: EXTERN PetscErrorCode   TSSundialsGetParameters(TS,PetscInt *,long*[],double*[]);
205: #endif

207: EXTERN PetscErrorCode   TSRKSetTolerance(TS,PetscReal);

210: #endif