petsc-3.11.3 2019-06-26
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TaoSetResidualWeights

Give weights for the residual values. A vector can be used if only diagonal terms are used, otherwise a matrix can be give. If this function is not used, or if sigma_v and sigma_w are both NULL, then the default identity matrix will be used for weights.

Synopsis

#include "petsctao.h" 
PetscErrorCode TaoSetResidualWeights(Tao tao, Vec sigma_v, PetscInt n, PetscInt *rows, PetscInt *cols, PetscReal *vals)
Collective on Tao

Input Parameters

tao - the Tao context
sigma_v - vector of weights (diagonal terms only)
n - the number of weights (if using off-diagonal)
rows - index list of rows for sigma_w
cols - index list of columns for sigma_w
vals - array of weights

Note: Either sigma_v or sigma_w (or both) should be NULL

See Also

TaoSetResidualRoutine()

Level

intermediate

Location

src/tao/interface/taosolver_fg.c
Index of all Tao routines
Table of Contents for all manual pages
Index of all manual pages