petsc-3.7.5 2017-01-01
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VecCUSPRestoreArrayReadWrite

 Restore a CUSP device vector previously acquired with VecCUSPGetArrayReadWrite().

Synopsis

PETSC_EXTERN PetscErrorCode VecCUSPRestoreArrayReadWrite(Vec v, CUSPARRAY **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This marks the host data as out of date.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 Parameter

v - the vector
a - the CUSP device vector. This pointer is invalid after VecCUSPRestoreArrayReadWrite() returns.

Fortran note

This function is not currently available from Fortran.

See Also

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

Level:intermediate
Location:src/vec/vec/impls/seq/seqcusp/veccusp2.cu
Index of all Vec routines
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Index of all manual pages