VecCreateMPICUDA#
Creates a standard, parallel, array-style vector for CUDA devices.
Synopsis#
#include <petscvec.h>
PetscErrorCode VecCreateMPICUDA(MPI_Comm comm, PetscInt n, PetscInt N, Vec *v)
Collective, Possibly Synchronous
Input Parameters#
comm - the MPI communicator to use
n - local vector length (or
PETSC_DECIDE
to have calculated ifN
is given)N - global vector length (or
PETSC_DETERMINE
to have calculated ifn
is given)
Output Parameter#
v - the vector
Notes#
Use VecDuplicate()
or VecDuplicateVecs()
to form additional vectors of the same type as an
existing vector.
This function may initialize PetscDevice
, which may incur a device synchronization.
See Also#
VecCreateMPICUDAWithArray()
, VecCreateMPICUDAWithArrays()
, VecCreateSeqCUDA(),
VecCreateSeq(),
VecCreateMPI(),
VecCreate(),
VecDuplicate(),
VecDuplicateVecs(),
VecCreateGhost(),
VecCreateMPIWithArray(),
VecCreateGhostWithArray(),
VecMPISetGhost()`
Level#
intermediate
Location#
src/vec/vec/impls/mpi/cupm/cuda/vecmpicupm.cu
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages