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 SNESLineSearch context

• func - function evaluation routine, this is usually the function provided with SNESSetFunction()

Calling sequence of func

• snes - the SNES with which the SNESLineSearch context is associated with

• x - 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

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Index of all SNES routines
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