petsc-3.10.4 2019-02-26
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VecISCopy

Copies between a reduced vector and the appropriate elements of a full-space vector. vfull[is[i]] = vreduced[i]

Synopsis

#include "petscvec.h"  
PetscErrorCode VecISCopy(Vec vfull, IS is, ScatterMode mode, Vec vreduced)

Input Parameters

vfull - the full-space vector
is - the index set for the reduced space
mode - the direction of copying, SCATTER_FORWARD or SCATTER_REVERSE
vreduced - the reduced-space vector

Output Parameters

vfull -the sum of the full-space vector and reduced-space vector

See Also

VecAXPY()

Level

advanced

Location

src/vec/vec/utils/projection.c
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages