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

Input Parameters#

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#

Vec, VecStrideNorm(), VecStrideGather(), VecStrideMin(), VecStrideMax(), VecStrideGatherAll(), VecStrideScatterAll(), VecStrideSubSetScatter(), VecStrideSubSetGather()

Level#

advanced

Location#

src/vec/vec/utils/vinv.c

Examples#

src/vec/vec/tutorials/ex12.c
src/vec/vec/tutorials/ex12f.F90
src/vec/vec/tutorials/ex16.c


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Index of all Vec routines
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Index of all manual pages