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/tao/tutorials/ex3.c
src/tao/tutorials/ex4.c
src/tao/constrained/tutorials/tomographyADMM.c
src/tao/pde_constrained/tutorials/elliptic.c
src/tao/pde_constrained/tutorials/parabolic.c
src/tao/leastsquares/tutorials/tomography.c
src/tao/constrained/tutorials/ex1.c
src/vec/vec/utils/tagger/tutorials/ex1.c
src/tao/pde_constrained/tutorials/hyperbolic.c
src/tao/constrained/tutorials/maros.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