DMSNESCheckResidual#

Check the residual of the exact solution

Synopsis#

#include "petscdmplex.h" 
#include "petscsnes.h"   
PetscErrorCode DMSNESCheckResidual(SNES snes, DM dm, Vec u, PetscReal tol, PetscReal *residual)

Input Parameters#

snes - the SNES object
dm - the DM
u - a DM vector
tol - A tolerance for the check, or -1 to print the results instead

Output Parameter#

residual - The residual norm of the exact solution, or NULL

See Also#

DNSNESCheckFromOptions(), DMSNESCheckDiscretization(), DMSNESCheckJacobian()

Level#

developer

Location#

src/snes/utils/dmplexsnes.c

Index of all SNES routines
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Index of all manual pages