petsc-3.3-p7 2013-05-11

SNESLineSearchPreCheck

Prepares the line search for being applied.

Synopsis

#include "petscsnes.h" 
PetscErrorCode SNESLineSearchPreCheck(SNESLineSearch linesearch,Vec X,Vec Y,PetscBool *changed)

Logically Collective on SNESLineSearch

Input Parameters

	linesearch	- The linesearch instance.
	X	- The current solution
	Y	- The step direction

Output Parameters

changed -Indicator that the precheck routine has changed anything

Keywords

SNESLineSearch, Create

See Also

SNESLineSearchPostCheck()

Level:Beginner
Location:src/snes/linesearch/interface/linesearch.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages