petsc-3.9.4 2018-09-11
VecCreateShared
Creates a parallel vector that uses shared memory.
Synopsis
#include "petscvec.h"
PetscErrorCode VecCreateShared(MPI_Comm comm,PetscInt n,PetscInt N,Vec *v)
Input Parameters
comm -the MPI communicator to use
n -local vector length (or PETSC_DECIDE to have calculated if N is given)
N -global vector length (or PETSC_DECIDE to have calculated if n is given)
Output Parameter
vv -the vector
Collective on MPI_Comm
Notes
Currently VecCreateShared() is available only on the SGI; otherwise,
this routine is the same as VecCreateMPI().
Use VecDuplicate() or VecDuplicateVecs() to form additional vectors of the
same type as an existing vector.
See Also
VecCreateSeq(), VecCreate(), VecCreateMPI(), VecDuplicate(), VecDuplicateVecs(),
VecCreateGhost(), VecCreateMPIWithArray(), VecCreateGhostWithArray()
Level
advanced
Location
src/vec/vec/impls/shared/shvec.c
Examples
src/vec/vec/examples/tutorials/ex1.c.html
src/vec/vec/examples/tutorials/ex11.c.html
src/vec/vec/examples/tutorials/ex1f.F90.html
src/vec/vec/examples/tutorials/ex11f.F.html
src/snes/examples/tutorials/ex5s.c.html
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages