PETSc version 3.17.4
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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

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.

.seealso: VecCreateMPICUDAWithArray(), VecCreateMPICUDAWithArrays(), VecCreateSeqCUDA(), VecCreateSeq(), VecCreateMPI(), VecCreate(), VecDuplicate(), VecDuplicateVecs(), VecCreateGhost(), VecCreateMPIWithArray(), VecCreateGhostWithArray(), VecMPISetGhost()

Level

intermediate

Location

src/vec/vec/impls/mpi/mpicuda/mpicuda.cu
Index of all Vec routines
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