On Mar 13, 2009, at 5:15 PM, Mikael Djurfeldt wrote:
On Fri, Mar 13, 2009 at 9:28 PM, Jeff Squyres <jsquy...@cisco.com>
wrote:
> No you should not need to do this.
>
> Is there any chance you could upgrade to Open MPI v1.3?
Yes. It works without a Barrier under v1.3. Is this a known problem?
Possibly...? I can't name any particular issue offhand that is a
known culprit for this, but it's possible someone else can. There are
many changes and fixes in the v1.3 series as compared to the v1.2
series.
What is the best way for me to test in my configure script that I'm
running under OpenMPI version >= 1.3 so that I can disable the Barrier
for such versions?
In mpi.h, we have a few macros that should help you:
-----
/*
* Just in case you need it. :-)
*/
#define OPEN_MPI 1
/* Major, minor, and release version of Open MPI */
#define OMPI_MAJOR_VERSION 1
#define OMPI_MINOR_VERSION 3
#define OMPI_RELEASE_VERSION 0
-----
You should be able to construct a fairly simple AC_TRY_RUN test that
checks #if defined(), etc.
--
Jeff Squyres
Cisco Systems
