SNESGetUpdateNorm#

Gets the last computed norm of the solution update

Synopsis#

#include "petscsnes.h"  
PetscErrorCode SNESGetUpdateNorm(SNES snes, PetscReal *ynorm)

Not Collective

Input Parameter#

snes - the SNES context

Output Parameter#

ynorm - the last computed update norm

Note#

The new solution is the current solution plus the update, so this norm is an indication of the size of the update

See Also#

SNES: Nonlinear Solvers, SNES, SNESSetNormSchedule(), SNESComputeFunction(), SNESGetFunctionNorm()

Level#

developer

Location#

src/snes/interface/snes.c

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