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Subject: Re: [hwloc-devel] [hwloc-svn] svn:hwloc r5299 - in branches/bgq: config include/private src
From: Samuel Thibault (samuel.thibault_at_[hidden])
Date: 2013-02-08 07:36:04


Brice Goglin, le Fri 08 Feb 2013 13:34:01 +0100, a écrit :
> Le 08/02/2013 13:26, Samuel Thibault a écrit :
> > Brice Goglin, le Fri 08 Feb 2013 13:23:33 +0100, a écrit :
> >> Le 08/02/2013 12:52, Samuel Thibault a écrit :
> >>> svn-commit-mailer_at_[hidden], le Fri 08 Feb 2013 12:02:18 +0100, a écrit :
> >>>> Everything is hardwired in the backend, all nodes are the same.
> >>> Would it be possible to check some file in /proc or /sys to identify the
> >>> machine, to make sure we are not lying?
> >> There's no such filesystems on BlueGene compute nodes. The CNK kernel
> >> redirects I/O call to the I/O node (which runs Linux).
> >>
> >> I can check that uname reports "CNK" and "BGQ" if you're afraid of
> >> people running hwloc/bgq on non-bgq machines.
> > My concern is rather than within a few years, new BGQ machines get built
> > with a differing architecture. Ideally we would find some
> > identifier or version which will for sure change when IBM changes the
> > architecture.
>
> If a new BlueGene is built, it won't be called Q again, they still have
> 23 letters to use :)

Ok, so we can use that as identifier :)

Samuel