petsc-3.14.6 2021-03-30
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 Parameters
| 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
Table of Contents for all manual pages
Index of all manual pages