petsc-3.12.1 2019-10-22
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VecCUDARestoreArray

Restore a CUDA device pointer previously acquired with VecCUDAGetArray().

Synopsis

#include "petscvec.h"   
PETSC_EXTERN PetscErrorCode VecCUDARestoreArray(Vec v, PetscScalar **a)
This marks the host data as out of date. Subsequent access to the vector data on the host side with for instance VecGetArray() incurs a data transfer.

Input Parameter

v - the vector
a - the CUDA device pointer. This pointer is invalid after VecCUDARestoreArray() returns.

Fortran note

This function is not currently available from Fortran.

See Also

VecCUDAGetArray(), VecCUDAGetArrayRead(), VecCUDAGetArrayWrite(), VecGetArray(), VecRestoreArray(), VecGetArrayRead()

Level

intermediate

Location

src/vec/vec/interface/rvector.c
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages