petsc-3.13.6 2020-09-29
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DMSNESCheckFromOptions

 Check the residual and Jacobian functions using the exact solution by outputting some diagnostic information

Synopsis

#include "petscdmplex.h" 
#include "petscsnes.h"   
PetscErrorCode DMSNESCheckFromOptions(SNES snes, Vec u, PetscErrorCode (**exactFuncs)(PetscInt dim, PetscReal time, const PetscReal x[], PetscInt Nf, PetscScalar *u, void *ctx), void **ctxs)

Input Parameters

snes - the SNES object
u - representative SNES vector
exactFuncs - pointwise functions of the exact solution for each field
ctxs - contexts for the functions

Level

developer

Location

src/snes/utils/dmplexsnes.c

Examples

src/tao/tutorials/ex1.c.html
src/tao/tutorials/ex2.c.html

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