petsc-3.7.3 2016-07-24
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VecScatterFinalizeForGPU

Finalizes a generalized scatter from one vector to another for GPU based computation.

Synopsis

#include "petscvec.h"    
PETSC_EXTERN PetscErrorCode VecScatterFinalizeForGPU(VecScatter inctx)

Input Parameter

Notes

Effectively, this function resets the temporary buffer flags. Currently, this only used in the context of the parallel SpMV call in in MatMult_MPIAIJCUDA or MatMult_MPIAIJCUDAARSE. Once the MatMultAdd is finished, the GPU temporary buffers used for messaging are no longer valid.

See Also

VecScatterInitializeForGPU(), VecScatterCreate(), VecScatterEnd()

Level:intermediate
Location:
src/vec/vec/utils/vscat.c
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages

inctx - scatter context generated by VecScatterCreate()