petsc-3.7.1 2016-05-15
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VecCUSPRestoreCUDAArrayRead

Restore a device vector previously acquired with VecCUSPGetCUDAArrayRead()

Synopsis

PETSC_EXTERN PetscErrorCode VecCUSPRestoreCUDAArrayRead(Vec v, PetscScalar **a)
If the data on the host side was previously up to date it will remain Many brso, i.e. data on both the device and the host is up to date. Many brAccessing data on the host side e.g. with VecGetArray() does not Many brincur a device to host data transfer. Many br

Input Parameter

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

Fortran note

This function is not currently available from Fortran. Many br

Many br

Fortran note: This function is not currently available from Fortran. Many br

See Also

VecCUSPGetCUDAArrayRead(), VecCUSPGetCUDAArrayWrite(), VecCUSPGetArrayReadWrite(), VecCUSPGetArrayRead(), VecCUSPGetArrayWrite(), VecGetArray(), VecRestoreArray(), VecGetArrayRead()

Level:advanced
Location:
src/vec/vec/impls/seq/seqcusp/veccusp2.cu
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages