VecCreateNest

Creates a new vector containing several nested subvectors, each stored separately

Synopsis

#include "petscvec.h"   
PetscErrorCode VecCreateNest(MPI_Comm comm, PetscInt nb, IS is[], Vec x[], Vec *Y)

Collective

Input Parameters

• comm - Communicator for the new Vec

• nb - number of nested blocks

• is - array of nb index sets describing each nested block, or NULL to pack subvectors contiguously

• x - array of nb sub-vectors

Output Parameter

• Y - new vector

See Also

VECNEST, Vectors and Parallel Data, Vec, VecType, VecCreate(), MatCreateNest(), DMSetVecType()

Level

advanced

Location

src/vec/vec/impls/nest/vecnest.c

Examples

src/vec/vec/tests/ex37.c
src/vec/vec/tests/ex41.c
src/ksp/ksp/tests/ex22.c
src/ksp/ksp/tests/ex57.c
src/ksp/ksp/tests/ex83.c
src/snes/tests/ex17.c
src/ts/tests/ex2.c

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Index of all Vec routines
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