Dear OpenMPI user group,
in former OpenMPI release versions I have used a combination of these two
options:
--mca rmaps_dist_device
--map-by dist:span
in order to let OpenMPI automatically map the processes close to the network
card. This was useful for PingPong benchmarks using only one process per node
for example.
It seems that the option -map-by dist:span is no longer supported in OpenMPI 5
releases. Is there a new alternative to achieve an automatic process pinning
close to the Network card?
Thanks a lot for your support and regards,
Rene'
__
\ / _____/ _____/ NEC Deutschland GmbH
/ \ / / / HPCE Division
/ \ \ / ____/ /
/ \ / / Fritz-Vomfelde-Straße 14-16
__/ \_______/_______/ D-40457 Düsseldorf, Germany
http://www.nec.com/en/de
Rene' Puttin Tel.: +49 152 22851539
Benchmarking Expert Fax: +49 0211 5369 199
Mail: rene.put...@emea.nec.com
NEC Deutschland GmbH, Fritz-Vomfelde-Straße 14-16, D-40547 Düsseldorf
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