VecViennaCLRestoreCLMem — PETSc 3.23.0 documentation

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# VecViennaCLRestoreCLMem

Restores a CL buffer pointer previously acquired with VecViennaCLGetCLMem().

## Synopsis

    #include "petscvec.h"
    PETSC_EXTERN PetscErrorCode VecViennaCLRestoreCLMem(Vec v)

This marks the host data as out of date.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

## See Also

`VecViennaCLGetCLContext()`, `VecViennaCLGetCLMem()`

## Level

intermediate

## Location

src/vec/vec/impls/seq/seqviennacl/vecviennacl.cxx

Index of all Vec routines
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Index of all manual pages