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<TITLE>VecCUSPRestoreCUDAArrayReadWrite</TITLE>
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<div id="version" align=right><b>petsc-3.7.5 2017-01-01</b></div>
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<A NAME="VecCUSPRestoreCUDAArrayReadWrite"><H1>VecCUSPRestoreCUDAArrayReadWrite</H1></A>
Restore a device vector previously acquired with <A HREF="../Vec/VecCUSPGetCUDAArrayReadWrite.html#VecCUSPGetCUDAArrayReadWrite">VecCUSPGetCUDAArrayReadWrite</A>().
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
PETSC_EXTERN PetscErrorCode VecCUSPRestoreCUDAArrayReadWrite(Vec v, PetscScalar **a)
</PRE>
This marks the host data as out of date. Subsequent access to the
vector data on the host side with for instance <A HREF="../Vec/VecGetArray.html#VecGetArray">VecGetArray</A>() incurs a
data transfer.
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>v </B></TD><TD>- the vector
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>a </B></TD><TD>- the CUDA device pointer. This pointer is invalid after
<A HREF="../Vec/VecCUSPRestoreCUDAArrayReadWrite.html#VecCUSPRestoreCUDAArrayReadWrite">VecCUSPRestoreCUDAArrayReadWrite</A>() returns.
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Fortran note</FONT></H3>
This function is not currently available from Fortran.
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Vec/VecCUSPGetCUDAArrayRead.html#VecCUSPGetCUDAArrayRead">VecCUSPGetCUDAArrayRead</A>(), <A HREF="../Vec/VecCUSPGetCUDAArrayWrite.html#VecCUSPGetCUDAArrayWrite">VecCUSPGetCUDAArrayWrite</A>(), <A HREF="../Vec/VecCUSPGetArrayReadWrite.html#VecCUSPGetArrayReadWrite">VecCUSPGetArrayReadWrite</A>(), <A HREF="../Vec/VecCUSPGetArrayRead.html#VecCUSPGetArrayRead">VecCUSPGetArrayRead</A>(), <A HREF="../Vec/VecCUSPGetArrayWrite.html#VecCUSPGetArrayWrite">VecCUSPGetArrayWrite</A>(), <A HREF="../Vec/VecGetArray.html#VecGetArray">VecGetArray</A>(), <A HREF="../Vec/VecRestoreArray.html#VecRestoreArray">VecRestoreArray</A>(), <A HREF="../Vec/VecGetArrayRead.html#VecGetArrayRead">VecGetArrayRead</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/vec/vec/impls/seq/seqcusp/veccusp2.cu#VecCUSPRestoreCUDAArrayReadWrite">src/vec/vec/impls/seq/seqcusp/veccusp2.cu</A>
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