petsc-3.7.1 2016-05-15
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VecCUDARestoreArrayReadWrite

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

Synopsis

PETSC_EXTERN PetscErrorCode VecCUDARestoreArrayReadWrite(Vec v, PetscScalar **a)
This marks the host data as out of date. Subsequent access to the Many brvector data on the host side with for instance VecGetArray() incurs a Many brdata transfer. Many br

Input Parameter

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

Fortran note

This function is not currently available from Fortran. Many br

Many br

See Also

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

Level:intermediate
Location:
src/vec/vec/impls/seq/seqcuda/veccuda2.cu
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages