PetscDSSetExactSolution

Set the pointwise exact solution function for a given test field

Synopsis

#include "petscds.h" 
PetscErrorCode PetscDSSetExactSolution(PetscDS prob, PetscInt f, PetscErrorCode (*sol)(PetscInt dim, PetscReal t, const PetscReal x[], PetscInt Nc, PetscScalar u[], void *ctx), void *ctx)

Not Collective

Input Parameters

• prob - The PetscDS

• f - The test field number

• sol - solution function for the test fields

• ctx - solution context or NULL

Calling sequence of sol

• dim - the spatial dimension

• t - current time

• x - coordinates of the current point

• Nc - the number of field components

• u - the solution field evaluated at the current point

• ctx - a user context

See Also

PetscDS, PetscDSGetExactSolution()

Level

intermediate

Location

src/dm/dt/interface/dtds.c

Examples

src/tao/tutorials/ex2.c
src/snes/tutorials/ex62.c
src/snes/tutorials/ex26.c
src/snes/tutorials/ex20.c
src/snes/tutorials/ex27.c
src/tao/tutorials/ex1.c
src/snes/tutorials/ex71.c
src/snes/tutorials/ex76.c
src/snes/tutorials/ex17.c
src/snes/tutorials/ex23.c

---

Index of all DT routines
Table of Contents for all manual pages
Index of all manual pages