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 if N is given)
N - global vector length (or PETSC_DETERMINE to have calculated if n 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
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Index of all manual pages