petsc-master 2019-09-20
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DMSNESCheckDiscretization

Check the discretization error of the exact solution

Synopsis

#include "petscdmplex.h" 
#include "petscsnes.h"   
PetscErrorCode DMSNESCheckDiscretization(SNES snes, DM dm, Vec u, PetscErrorCode (**exactFuncs)(PetscInt, PetscReal, const PetscReal x[], PetscInt, PetscScalar *u, void *ctx), void **ctxs, PetscReal tol, PetscReal error[])

Input Parameters

Output Parameters

See Also

DNSNESCheckFromOptions(), DMSNESCheckResidual(), DMSNESCheckJacobian()

Level

developer

Location

src/snes/utils/dmplexsnes.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages
snes - the SNES object
dm - the DM
u - a DM vector
exactFuncs - pointwise functions of the exact solution for each field
ctxs - contexts for the functions
tol - A tolerance for the check, or -1 to print the results instead
error - An array which holds the discretization error in each field, or NULL