That is interesting. I think I will reconstruct your experiments on my system when I will be testing PMI selection logic. According to your resource count numbers I can do that. I will publish my results in the list.
2014-05-08 8:51 GMT+07:00 Christopher Samuel <sam...@unimelb.edu.au>: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 07/05/14 18:00, Ralph Castain wrote: > > > Interesting - how many nodes were involved? As I said, the bad > > scaling becomes more evident at a fairly high node count. > > Our x86-64 systems are low node counts (we've got BG/Q for capacity), > the cluster that those tests were run on has 70 nodes, each with 16 > cores, so I suspect we're a long long way away from that pain point. > > All the best! > Chris > - -- > Christopher Samuel Senior Systems Administrator > VLSCI - Victorian Life Sciences Computation Initiative > Email: sam...@unimelb.edu.au Phone: +61 (0)3 903 55545 > http://www.vlsci.org.au/ http://twitter.com/vlsci > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.14 (GNU/Linux) > Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ > > iEYEARECAAYFAlNq4zQACgkQO2KABBYQAh8ErQCcCBFFeB5q27b7AkqfClliUdvC > NJIAn1Cun+yY8zd6IToEsYJELpJTIdGb > =K0XF > -----END PGP SIGNATURE----- > _______________________________________________ > devel mailing list > de...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel > Link to this post: > http://www.open-mpi.org/community/lists/devel/2014/05/14734.php > -- С Уважением, Поляков Артем Юрьевич Best regards, Artem Y. Polyakov
