To echo what Josh said, there are no special compile flags being used.
If you send me a patch with debug output, I'd be happy to run it for you.
Both odin and sif are fairly normal linux based clusters, with ethernet
and openib IP networks. The ethernet network has both ipv4 & ipv6, and
the openib network runs ipv4.
Adrian Knoth wrote:
> On Fri, Apr 18, 2008 at 01:00:40PM -0400, Josh Hursey wrote:
>> The trick is to force Open MPI to use only tcp,self and nothing else.
>> Did you try adding this (-mca btl tcp,self) to the runtime parameter
> Sure. Even with 64 processes, I cannot trigger this behaviour. Neither
> on Linux nor Solaris.
> Any special compile flags?
> I guess a little bit more debug output could probably reveal the