VecCreate#

Creates an empty vector object. The type can then be set with VecSetType(), or VecSetFromOptions().

Synopsis#

#include "petscvec.h"   
PetscErrorCode VecCreate(MPI_Comm comm, Vec *vec)

Collective

Input Parameter#

comm - The communicator for the vector object

Output Parameter#

vec - The vector object

Notes#

If you never call VecSetType() or VecSetFromOptions() it will generate an error when you try to use the vector.

See Also#

Vectors and Parallel Data, Vec, VecSetType(), VecSetSizes(), VecCreateMPIWithArray(), VecCreateMPI(), VecDuplicate(), VecDuplicateVecs(), VecCreateGhost(), VecCreateSeq(), VecPlaceArray()

Level#

beginner

Location#

src/vec/vec/interface/veccreate.c

Examples#

src/dm/tutorials/ex14.c
src/ksp/ksp/tutorials/bench_kspsolve.c
src/ksp/ksp/tutorials/ex1.c
src/ksp/ksp/tutorials/ex10.c
src/ksp/ksp/tutorials/ex11.c
src/ksp/ksp/tutorials/ex11f.F90
src/ksp/ksp/tutorials/ex12.c
src/ksp/ksp/tutorials/ex15.c
src/ksp/ksp/tutorials/ex15f.F90
src/ksp/ksp/tutorials/ex16.c
src/ksp/ksp/tutorials/ex18.c

Implementations#

VecCreate_CUDA in src/vec/vec/impls/mpi/cupm/cuda/vecmpicupm.cu
VecCreate_MPICUDA in src/vec/vec/impls/mpi/cupm/cuda/vecmpicupm.cu
VecCreate_HIP in src/vec/vec/impls/mpi/cupm/hip/vecmpicupm.hip.c
VecCreate_MPIHIP in src/vec/vec/impls/mpi/cupm/hip/vecmpicupm.hip.c
VecCreate_MPIKokkos in src/vec/vec/impls/mpi/kokkos/mpikok.kokkos.cxx
VecCreate_Kokkos in src/vec/vec/impls/mpi/kokkos/mpikok.kokkos.cxx
VecCreate_MPIViennaCL in src/vec/vec/impls/mpi/mpiviennacl/mpiviennacl.cxx
VecCreate_ViennaCL in src/vec/vec/impls/mpi/mpiviennacl/mpiviennacl.cxx
VecCreate_MPI in src/vec/vec/impls/mpi/pbvec.c
VecCreate_Standard in src/vec/vec/impls/mpi/pbvec.c
VecCreate_Seq in src/vec/vec/impls/seq/bvec3.c
VecCreate_SeqCUDA in src/vec/vec/impls/seq/cupm/cuda/vecseqcupm.cu
VecCreate_SeqHIP in src/vec/vec/impls/seq/cupm/hip/vecseqcupm.hip.c
VecCreate_SeqKokkos in src/vec/vec/impls/seq/kokkos/veckok.kokkos.cxx
VecCreate_SeqViennaCL in src/vec/vec/impls/seq/seqviennacl/vecviennacl.cxx
VecCreate_Shared in src/vec/vec/impls/shared/shvec.c
VecCreate_Shared in src/vec/vec/impls/shared/shvec.c

Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages