[Beowulf] ammonite

Jakob Oestergaard jakob at unthought.net
Tue Oct 5 07:56:53 PDT 2004

On Mon, Oct 04, 2004 at 03:19:37PM -0700, Jack Wathey wrote:
> The ammonite cluster can now be seen in pictures and words at
>     http://jessen.ch/ammonite/


On the SMP/UP problem:

Do you have ACPI support in your kernel? Newer kernels can use ACPI for
parsing SMP information from the motherboard, rather than guess-working
on the old MP tables at magic locations in memory.  This *could* be
worth a shot I think.

I am 100% sure that your SMP/UP problem has *nothing* to do, what so
ever, with NFS server contention - either your kernel loads and boots,
or it doesn't load and boot.  The kernel does not use NFS (or local
disk) during the early stages of boot, where the processors are set up.
NFS problems would result in a failed boot, not a missing CPU.

Alternatively, I'd try out 2.4.27 (or if you're feeling lucky),
your 2.4.20 kernel is *really* dated.



 / jakob

More information about the Beowulf mailing list