petsc-3.12.5 2020-03-29
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SNESLineSearchGetVIFunctions

 Sets VI-specific functions for line search computation.

Synopsis

#include "petscsnes.h" 
PetscErrorCode SNESLineSearchGetVIFunctions(SNESLineSearch linesearch, SNESLineSearchVIProjectFunc *projectfunc, SNESLineSearchVINormFunc *normfunc)

Input Parameters

linesearch -the line search context, obtain with SNESGetLineSearch()

Output Parameters

projectfunc - function for projecting the function to the bounds
normfunc - function for computing the norm of an active set

Logically Collective on SNES

See Also

SNESLineSearchSetVIFunctions(), SNESLineSearchGetPostCheck(), SNESLineSearchGetPreCheck()

Level

developer

Location

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