SNESLineSearchSetFunction#
Sets the function evaluation used by the SNES line search `
Synopsis#
#include "petscsnes.h"
PetscErrorCode SNESLineSearchSetFunction(SNESLineSearch linesearch, PetscErrorCode (*func)(SNES snes, Vec x, Vec f))
Input Parameters#
linesearch - the
SNESLineSearchcontextfunc - function evaluation routine, this is usually the function provided with
SNESSetFunction()
Calling sequence of func#
snes - the
SNESwith which theSNESLineSearchcontext is associated withx - the input vector
f - the computed value of the function
Note#
By default the SNESLineSearch uses the function provided by SNESSetFunction() so this is rarely needed
See Also#
SNES: Nonlinear Solvers, SNES, SNESLineSearch, SNESGetLineSearch(), SNESSetFunction()
Level#
developer
Location#
src/snes/linesearch/interface/linesearch.c
Index of all SNES routines
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Index of all manual pages