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Re: Oracle Sun T5120 support getting better in debian 6.0.5 ?

Hi, Michel

Thanks for sharing your info on running Debian on Sun T5120.  I really
appreciate this.

I haven't made the switch yet. I will probably start with running the
test using LDOM since I don't have a physical T5120 for testing.


On Fri, Jul 13, 2012 at 6:48 AM, Michel Schanen
<michel.schanen@googlemail.com> wrote:
> Hi,
> we installed Debian SPARC 6.0.3 on 20 Sun T5120 Enterprise nodes
> interconnected with infiniband cards and onboard network cards. The
> infiniband cards are very buggy and only work over IP. Problem is that there
> are no supported infiniband drivers for Linux/SPARC.
> I recommend the Debian installation guide for SPARCs. We used the TFTP
> method, which worked fairly well. We ran into the same trouble as you when
> connecting a CDROM drive.
> http://www.debian.org/releases/stable/sparc/ch04s03.html.en
> Only trick was that the image had to be named after the IP of the
> installation target, e.g. -> C0.A8.00.02
> We received these cluster nodes at no costs and we use them essentially for
> simulation codes/testing. As the tools are all SPARC and not SPARC64 we had
> some problems using OpenMP. For instance the atomic statement was very slow.
> After compiling gcc with arch=SPARC64 we had a considerable performance
> boost using OpenMP. In the end, all our development tools are now recompiled
> with arch=SPARC64.
> Other than that, everything works flawlessly! NFS crashes after some weeks
> of uptime. Therefore we do a weekly reboot.
> You will be able to log in to the ILOM SPs over SSH and eventually to your
> system console.
> Oh and don't forget to recompile your kernel with 64 CPU support. Otherwise
> you will be stuck with 32 or something.
> Michel

T.J. Yang

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