petsc-3.12.5 2020-03-29
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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

Output Parameters

See Also

DNSNESCheckFromOptions(), DMSNESCheckDiscretization(), 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
tol - A tolerance for the check, or -1 to print the results instead
residual - The residual norm of the exact solution, or NULL