Am 07.06.2011 um 15:28 schrieb Dave Love: > Reuti <[email protected]> writes: > >> Hi, >> >> Am 25.05.2011 um 17:30 schrieb Dave Love: >> >>> It seems that core binding currently isn't typically useful with MPI >>> jobs. The pe method needs exclusive node access and a fixed >>> allocation >>> rule that you need to know in advance, but then you could have the mpi >>> do it anyhow (e.g. openmpi paffinity_alone) which works more >>> generally. >>> (See past discussion.) There seem similar restrictions on the set >>> method in practice -- at least needing a fixed allocation rule, as you >>> have to specify a fixed core count. >>> >>> It looks straightforward to implement binding a number of cores >>> equal to >>> the host-local slot count. Does ayone see a problem with that or have >>> strong feelings how to specify it? I'd be inclined to let bare >>> `-binding set' do it, but otherwise maybe a new type like `setslots' >>> analogous >>> to `set'. >> >> what would be the difference to the current implementation? >> >> -- Reuti > > Binding a number of cores equal to the allocated slot count for the node > rather than a fixed number. E.g. you have 16-core nodes with $fill_up > and 24-slot (process) job, you'd probably want to bind 16 on one and 8 > on another and you can't currently specify that.
I see, thx. - Reuti _______________________________________________ users mailing list [email protected] https://gridengine.org/mailman/listinfo/users
