petsc-3.14.6 2021-03-30
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
|
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
Examples
src/snes/tutorials/ex12.c.html
src/snes/tutorials/ex17.c.html
src/snes/tutorials/ex62.c.html
src/tao/tutorials/ex1.c.html
src/tao/tutorials/ex2.c.html
Index of all DT routines
Table of Contents for all manual pages
Index of all manual pages