PetscDSGetExactSolution

Get the pointwise exact solution function for a given test field

Synopsis

#include "petscds.h" 
PetscErrorCode PetscDSGetExactSolution(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

Output Parameters

• sol - exact solution for the test field

• ctx - exact solution context

Calling sequence of exactSol

• 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, PetscDSSetExactSolution(), PetscDSGetExactSolutionTimeDerivative()

Level

intermediate

Location

src/dm/dt/interface/dtds.c

Examples

src/ts/tutorials/ex53.c
src/tao/tutorials/ex2.c
src/snes/tutorials/ex69.c
src/ts/tutorials/ex47.c
src/snes/tutorials/ex27.c
src/snes/tutorials/ex71.c
src/ts/tutorials/ex76.c
src/ts/tutorials/ex77.c
src/tao/tutorials/ex1.c
src/ts/tutorials/ex46.c

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Index of all DT routines
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Index of all manual pages