VecCUDARestoreArrayWrite#
Restore a CUDA device pointer previously acquired with VecCUDAGetArrayWrite().
Synopsis#
#include "petscvec.h"
PETSC_EXTERN PetscErrorCode VecCUDARestoreArrayWrite(Vec v, PetscScalar **a)
Data on the host will be marked as out of date.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.
Input Parameters#
v - the vector
a - the CUDA device pointer. This pointer is invalid after VecCUDARestoreArrayWrite() returns.
Fortran note#
This function is not currently available from Fortran.
See Also#
VecCUDAGetArrayWrite()
, VecCUDAGetArray()
, VecCUDAGetArrayRead()
, VecCUDAGetArrayWrite()
, VecGetArray()
, VecRestoreArray()
, VecGetArrayRead()
Level#
intermediate
Location#
Examples#
src/snes/tutorials/ex47cu.cu.html
Index of all Vec routines
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Index of all manual pages