Rainer,
a first step could be to gather /proc/pid/status for your 48 tasks.
then you can
grep Cpus_allowed_list
and see if you find something suspucious.
if your processes are idling, then the scheduler might assign them to the
same core.
in this case, your processes not being spread is a consequ
Am 17.03.2016 um 10:40 schrieb Ralph Castain:
> Just some thoughts offhand:
>
> * what version of OMPI are you using?
dpkg -l openmpi-bin says 1.6.5-8 from Ubuntu 14.04.
>
> * are you saying that after the warm reboot, all 48 procs are running on a
> subset of cores?
Yes. After a cold boot all
Hello,
Using openmpi-1.10.1, I was able to successfully run few tests from OSU
micro benchmarks on ARMv8 platform; used Juno evaluation board.
However, please refer to :
- https://www.open-mpi.org/community/lists/devel/2013/01/11955.php #
thread
- https://svn.open-mpi.org/trac/ompi/ticket/3481
