SNESSetAlwaysComputesFinalResidual#

tells the SNES to always compute the residual (nonlinear function value) at the final solution

Synopsis#

#include "petscsnes.h"  
PetscErrorCode SNESSetAlwaysComputesFinalResidual(SNES snes, PetscBool flg)

Logically Collective

Input Parameters#

snes - the shell SNES
flg - PETSC_TRUE to always compute the residual

Note#

Some solvers (such as smoothers in a SNESFAS) do not need the residual computed at the final solution so skip computing it to save time.

See Also#

SNES: Nonlinear Solvers, SNES, SNESSolve(), SNESGetAlwaysComputesFinalResidual()

Level#

advanced

Location#

src/snes/interface/snes.c

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