VecCreateSeqWithArray

Creates a standard,sequential array-style vector, where the user provides the array space to store the vector values.

Synopsis

#include "vec.h"   
int VecCreateSeqWithArray(MPI_Comm comm,int n,const Scalar array[],Vec *V)
Collective on MPI_Comm

Input Parameter

comm - the communicator, should be PETSC_COMM_SELF
n - the vector length
array - memory where the vector elements are to be stored.

Output Parameter

V -the vector

Notes

Use VecDuplicate() or VecDuplicateVecs() to form additional vectors of the same type as an existing vector.

If the user-provided array is PETSC_NULL, then VecPlaceArray() can be used at a later stage to SET the array for storing the vector values.

PETSc does NOT free the array when the vector is destroyed via VecDestroy(). The user should not free the array until the vector is destroyed.

Keywords

vector, sequential, create, BLAS

See Also

VecCreateMPIWithArray(), VecCreate(), VecDuplicate(), VecDuplicateVecs(),
VecCreateGhost(), VecCreateSeq(), VecPlaceArray()

Examples

src/sles/examples/tutorials/ex13f90.F
src/sles/examples/tutorials/ex13.c

Level:intermediate
Location:src/vec/impls/seq/bvec2.c
Vector Index
Table of Contents