petsc-3.13.6 2020-09-29
VecStrideScatter
Scatters a single component from a vector into a multi-component vector.
Synopsis
#include "petscvec.h"
PetscErrorCode VecStrideScatter(Vec s,PetscInt start,Vec v,InsertMode addv)
Collective on Vec
Input Parameter
Output Parameter
v -the location where the subvector is scattered (the multi-component vector)
Notes
One must call VecSetBlockSize() on the multi-component vector before this
routine to set the stride information, or use a vector created from a multicomponent DMDA.
The parallel layout of the vector and the subvector must be the same;
i.e., nlocal of v = stride*(nlocal of s)
Not optimized; could be easily
See Also
VecStrideNorm(), VecStrideGather(), VecStrideMin(), VecStrideMax(), VecStrideGatherAll(),
VecStrideScatterAll(), VecStrideSubSetScatter(), VecStrideSubSetGather()
Level
advanced
Location
src/vec/vec/utils/vinv.c
Examples
src/vec/vec/tutorials/ex12.c.html
src/vec/vec/tutorials/ex16.c.html
src/vec/vec/tutorials/ex12f.F90.html
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages