----- "Jeff Squyres" <jsquy...@cisco.com> wrote: Hi Jeff,
> I'm the "primary PLPA" guy that Ralph referred to, and I was on > vacation last week -- sorry for missing all the chatter. No worries! > Based on your mails, it looks like you're out this week -- so little > will likely occur. I'm at the MPI Forum standards meeting next week, > so my replies to email will be sporatic. Not a problem, can quite understand. > OMPI is pretty much directly calling PLPA to set affinity for > "processors" 0, 1, 2, 3 (which PLPA translates into Linux virtual > processor IDs, and then invokes sched_setaffinity with each of those > IDs). Cool, so it does indeed sound like something that can be solved purely inside PLPA. That's good to know! > Note that the EFAULT errors you're seeing in the output are > deliberate. [...] Great, after reading a bit more I got the impression that's what might be going on, thanks for the confirmation! > But as to why it's getting EINVAL, that could be wonky. > We might want to take this to the PLPA list and have you > run some small, non-MPI examples to ensure that PLPA is > parsing your /sys tree properly, etc. Not a problem. > Ping when you get back from vacation. I'm back Monday (which is Sunday arvo for you I think). cheers! Chris -- Christopher Samuel - (03) 9925 4751 - Systems Manager The Victorian Partnership for Advanced Computing P.O. Box 201, Carlton South, VIC 3053, Australia VPAC is a not-for-profit Registered Research Agency
