VecCUDARestoreArrayRead#

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

Synopsis#

#include <petscvec.h> 
PetscErrorCode VecCUDARestoreArrayRead(Vec v, const PetscScalar *a[])

Not Collective; Asynchronous

Input Parameters#

  • v - the vector

  • a - the CUDA device pointer

Note#

This routine does not modify the corresponding array on the host in any way. The pointer is invalid after this function returns.

Fortran Note#

  PetscScalar, pointer :: a(:)

See Also#

Vectors and Parallel Data, VecCUDAGetArrayRead(), VecCUDAGetArrayWrite(), VecCUDAGetArray(), VecGetArray(), VecRestoreArray(), VecGetArrayRead()

Level#

intermediate

Location#

src/vec/vec/impls/seq/cupm/cuda/vecseqcupm.cu

Examples#

src/vec/is/sf/tests/ex9.c
src/vec/vec/tests/ex38.c
src/vec/vec/tests/ex67.c
src/vec/vec/tests/ex67f.F90


Index of all Vec routines
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Index of all manual pages