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<A NAME="PetscSSEIsEnabled"><H1>PetscSSEIsEnabled</H1></A>
Determines if Intel Streaming SIMD Extensions to the x86 instruction set can be used. Some operating systems do not allow the use of these instructions despite hardware availability.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscsys.h"
int PetscSSEIsEnabled(MPI_Comm comm,PetscTruth *lflag,PetscTruth *gflag)</PRE>
Collective on MPI_Comm
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<DT><B><A HREF="../Sys/comm.html#comm">comm</A> </B> -the MPI Communicator
<br>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
<DT><B>lflag </B> -Local Flag: PETSC_TRUE if enabled in this process
<br>
<DT><B>gflag </B> -Global Flag: PETSC_TRUE if enabled for all processes in <A HREF="../Sys/comm.html#comm">comm</A>
<br>
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>developer
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/sys/src/utils/sseenabled.c.html#PetscSSEIsEnabled">src/sys/src/utils/sseenabled.c</A>
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