petsc-master 2020-05-26
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TaoBoundStep

Ensures the correct zero or adjusted step direction values for active variables.

Synopsis

#include "petsctao.h" 
PetscErrorCode TaoBoundStep(Vec X, Vec XL, Vec XU, IS active_lower, IS active_upper, IS active_fixed, PetscReal scale, Vec S) 

Input Parameters

X - solution vector
XL - lower bound vector
XU - upper bound vector
active_lower - index set for lower bounded active variables
active_upper - index set for lower bounded active variables
active_fixed - index set for fixed active variables
scale - amplification factor for the step that needs to be taken on actively bounded variables

Output Parameters

S -step direction to be modified

Level

developer

Location

src/tao/bound/utils/isutil.c
Index of all Tao routines
Table of Contents for all manual pages
Index of all manual pages