Liang, What main stream perf. issue do you refer to? Is there a JIRA ticket tracking it?
Thanks, -Cory On 08/08/2012 09:38 AM, Liang Zhen wrote: > Hi, LNet reserved 32 bits for network number, so you can choose a very large > network number if only have a few networks, but really create many networks > will have some issues: > - o2iblnd will pre-allocate memory resources for each network, so it will > consume a lot of memory > - Main stream LNet will have performance issue if there're many networks, for > example, hundreds, although it's not difficult to fix this. > > Liang > > On Aug 8, 2012, at 10:23 PM, Rick Mohr wrote: > >> >> I was curious what limitations exist for o2ib network numbers. Most of >> the time I am dealing with o2ib0, o2ib1, etc. As as experiment, I tried >> configuring a machine with o2ib1000, and that seemed to be OK. I >> figured there must be some limit on how large the network number can >> get, but after doing some searching, I have been unable to find any docs >> that specify a limit. Does any know what the max network number is? >> >> -- >> Rick Mohr >> HPC Systems Administrator >> National Institute for Computational Sciences >> http://www.nics.tennessee.edu/ >> >> _______________________________________________ >> Lustre-discuss mailing list >> [email protected] >> http://lists.lustre.org/mailman/listinfo/lustre-discuss > > _______________________________________________ > Lustre-discuss mailing list > [email protected] > http://lists.lustre.org/mailman/listinfo/lustre-discuss _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
