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This marks the host data as out of date.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 Parameters#

  • 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


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