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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 07:26:20


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.

Samuel