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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="PetscLogEventBarrierEnd"><H1>PetscLogEventBarrierEnd</H1></A>
Logs the time in a barrier before an event.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include <petsclog.h>
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../Profiling/PetscLogEventBarrierEnd.html#PetscLogEventBarrierEnd">PetscLogEventBarrierEnd</A>(int e,<A HREF="../Sys/PetscObject.html#PetscObject">PetscObject</A> o1,<A HREF="../Sys/PetscObject.html#PetscObject">PetscObject</A> o2,<A HREF="../Sys/PetscObject.html#PetscObject">PetscObject</A> o3,<A HREF="../Sys/PetscObject.html#PetscObject">PetscObject</A> o4,<A HREF="../Sys/MPI_Comm.html#MPI_Comm">MPI_Comm</A> comm)
</PRE>
Logically Collective on <A HREF="../Sys/MPI_Comm.html#MPI_Comm">MPI_Comm</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<DT><B>e </B> -integer associated with the event obtained from <A HREF="../Profiling/PetscLogEventRegister.html#PetscLogEventRegister">PetscLogEventRegister</A>()
<br>
<DT><B>o1,o2,o3,o4 </B> -objects associated with the event, or 0
<br>
<DT><B>comm </B> -communicator the barrier takes place over
<br>
<P>
<P>
<H3><FONT COLOR="#CC3333">Usage</FONT></H3>
<PRE>
<A HREF="../Profiling/PetscLogEventBarrierBegin.html#PetscLogEventBarrierBegin">PetscLogEventBarrierBegin</A>(VEC_NormBarrier,0,0,0,0,comm);
MPIU_Allreduce()
<A HREF="../Profiling/PetscLogEventBarrierEnd.html#PetscLogEventBarrierEnd">PetscLogEventBarrierEnd</A>(VEC_NormBarrier,0,0,0,0,comm);
</PRE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
This is for logging the amount of time spent in a barrier for an event
that requires synchronization.
<P>
<H3><FONT COLOR="#CC3333">Additional Notes</FONT></H3>
Synchronization events always come in pairs; for example, VEC_NormBarrier and
VEC_NormComm = VEC_NormBarrier + 1
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Profiling/PetscLogEventRegister.html#PetscLogEventRegister">PetscLogEventRegister</A>(), <A HREF="../Profiling/PetscLogEventEnd.html#PetscLogEventEnd">PetscLogEventEnd</A>(), <A HREF="../Profiling/PetscLogFlops.html#PetscLogFlops">PetscLogFlops</A>(), <A HREF="../Profiling/PetscLogEventBegin.html#PetscLogEventBegin">PetscLogEventBegin</A>(),
<BR><A HREF="../Profiling/PetscLogEventBarrierBegin.html#PetscLogEventBarrierBegin">PetscLogEventBarrierBegin</A>()
<P>
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
log, event, begin, barrier
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/sys/logging/plog.c.html#PetscLogEventBarrierEnd">src/sys/logging/plog.c</A>
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