PETSc version 3.15.5
TSDiscGradSetFormulation
Set the construction method for S, F, and grad F from the formulation u_t = S(u) grad F(u) 
Synopsis
#include "petscts.h"   
PetscErrorCode TSDiscGradSetFormulation(TS ts, PetscErrorCode (*Sfunc)(TS, PetscReal, Vec, Mat, void *), PetscErrorCode (*Ffunc)(TS, PetscReal, Vec , PetscScalar *, void *), PetscErrorCode (*Gfunc)(TS, PetscReal, Vec, Vec, void *), void *ctx)
Not Collective
Input Parameters
|  | ts | - timestepping context | 
|  | Sfunc | - constructor for the S matrix from the formulation | 
|  | Ffunc | - functional F from the formulation | 
|  | Gfunc | - constructor for the gradient of F from the formulation | 
Calling sequence of Sfunc
PetscErrorCode func(TS ts, PetscReal time, Vec u, Mat S, void *)
Calling sequence of Ffunc
PetscErrorCode func(TS ts, PetscReal time, Vec u, PetscScalar *F, void *)
Calling sequence of Gfunc
PetscErrorCode func(TS ts, PetscReal time, Vec u, Vec G, void *)
See Also
 TSDiscGradGetFormulation()
Level
Intermediate
Location
src/ts/impls/implicit/discgrad/tsdiscgrad.c
Implementations
TSDiscGradSetFormulation_DiscGrad(TS ts, PetscErrorCode (*Sfunc)(TS, PetscReal, Vec, Mat, void *), PetscErrorCode (*Ffunc)(TS, PetscReal, Vec, PetscScalar *, void *), PetscErrorCode (*Gfunc) in src/ts/impls/implicit/discgrad/tsdiscgrad.c
Index of all TS routines
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