petsc-3.8.4 2018-03-24
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PetscDSSetExactSolution

 Get 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))
Not collective

Input Parameters

prob - The PetscDS
f - The test field number
sol - solution function for the test fields

Note: The calling sequence for solution functions is given by

sol(PetscInt dim, PetscReal t, const PetscReal x[], PetscInt Nc, PetscScalar u[], void *ctx)

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

PetscDSGetExactSolution()

Level:intermediate
Location:src/dm/dt/interface/dtds.c
Index of all DT routines
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Index of all manual pages