VecCUDARestoreArray#

Restore a device buffer previously acquired with VecCUDAGetArray().

Synopsis#

#include <petscvec.h> 
PetscErrorCode VecCUDARestoreArray(Vec v, PetscScalar **a)

NotCollective; Asynchronous; No Fortran Support

Input Parameters#

  • v - the vector

  • a - the device buffer

Note#

The restored pointer is invalid after this function returns. This function also marks the host data as out of date. Subsequent access to the vector data on the host side via VecGetArray() will incur a (synchronous) data transfer.

See Also#

Vectors and Parallel Data, 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