petsc-3.13.6 2020-09-29
SNESLineSearchSetUp
Prepares the line search for being applied by allocating any required vectors.
Synopsis
#include "petscsnes.h"
PetscErrorCode SNESLineSearchSetUp(SNESLineSearch linesearch)
Collective on SNESLineSearch
Input Parameters
linesearch -The LineSearch instance.
Notes
For most cases, this needn't be called by users or outside of SNESLineSearchApply().
The only current case where this is called outside of this is for the VI
solvers, which modify the solution and work vectors before the first call
of SNESLineSearchApply, requiring the SNESLineSearch work vectors to be
allocated upfront.
See Also
SNESGetLineSearch(), SNESLineSearchReset()
Level
advanced
Location
src/snes/linesearch/interface/linesearch.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages