TaoVecGetSubVec

Gets a subvector using the IS

Synopsis

#include "petsctao.h" 
PetscErrorCode TaoVecGetSubVec(Vec vfull, IS is, TaoSubsetType reduced_type, PetscReal maskvalue, Vec *vreduced)

Input Parameters

• vfull - the full matrix

• is - the index set for the subvector

• reduced_type - the method Tao is using for subsetting

• maskvalue - the value to set the unused vector elements to (for TAO_SUBSET_MASK or TAO_SUBSET_MATRIXFREE)

Output Parameter

• vreduced - the subvector

Notes

maskvalue should usually be 0.0, unless a pointwise divide will be used.

See Also

TaoMatGetSubMat(), TaoSubsetType

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