petsc-3.14.6 2021-03-30
Report Typos and Errors

SNESLineSearchBTGetAlpha

Gets the descent parameter, alpha, in the BT linesearch variant.

Synopsis

#include "petscsnes.h"  
PetscErrorCode SNESLineSearchBTGetAlpha(SNESLineSearch linesearch, PetscReal *alpha)

Input Parameters

linesearch - linesearch context

Output Parameters

alpha - The descent parameter

See Also

SNESLineSearchGetLambda(), SNESLineSearchGetTolerances() SNESLINESEARCHBT

Level

intermediate

Location

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