VecCUDARestoreArrayWrite#
Restore a CUDA device pointer previously acquired with VecCUDAGetArrayWrite().
Synopsis#
#include <petscvec.h>
PetscErrorCode VecCUDARestoreArrayWrite(Vec v, PetscScalar **a)
Logically Collective; Asynchronous; No Fortran Support
Input Parameters#
v - the vector
a - the CUDA device pointer. This pointer is invalid after
VecCUDARestoreArrayWrite()returns.
Note#
Data on the host will be marked as out of date. Subsequent access of the data on the host
side e.g. with VecGetArray() will incur a device to host data transfer.
See Also#
Vectors and Parallel Data, VecCUDAGetArrayWrite(), VecCUDAGetArray(), VecCUDAGetArrayRead(),
VecCUDAGetArrayWrite(), VecGetArray(), VecRestoreArray(), VecGetArrayRead()
Level#
intermediate
Location#
src/vec/vec/impls/seq/cupm/cuda/vecseqcupm.cu
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages