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 Parameter#

  • S - step direction to be modified

Level#

developer

Location#

src/tao/bound/utils/isutil.c

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Index of all Tao routines
Table of Contents for all manual pages
Index of all manual pages