Hi Christopher,

That is indeed a great story of success for the Debian project.  Thank
you for sharing!  I wonder if there is any representative page at gsi.de
which would mirror your statement?

Googling for debian on gsi.de comes back with lots of links, including
such as
http://theory.gsi.de/~tneff/theory/news.html
Upgrade to Debian 2.0/Kernel 2.1.125  Thomas Neff: October 16, 1998

providing pieces of evidence to your description ;)  but I hoped there
could be some good summary somewhere.

Cheers,
Yarik

On Mon, 21 May 2012, Christopher Huhn wrote:

> Dear debian-science community,

> I'm sorry for this rather long post, but in the spirit of the "Debian at 
> ESRF" post I'd like to give some information about the Debian-based computing 
> infrastructure at GSI [1], a German non-profit research lab that runs a heavy 
> ion accelarator and is part of the Helmholtz association [2].

> We are running a more-or-less Debian-only Linux "farm" with more than 1000 
> nodes. We used the Debian distro for our Linux boxes since the last 
> millennium (maybe 1997?).

> We recently put on a 10 000 core compute cluster and 1.5 PB Lustre
> storage with Infiniband-only networking running Debian Squeeze and managed by 
> GridEngine - on top of our existing ~ 5000 CPU core cluster with more than 2 
> PB Lustre storage.

> Apart from our compute cluster we also provide some hundred desktops,
> servers for data acquisition, central IT services (DNS, DHCP, Radius, MTAs, 
> ...) and collaboration web services (Wikis, Subversion, ...) with Debian.

> Our accelerator controls unfortunately moves from VMS to Red Hat for
> the shiny care-less all-inclusive support - but at least it's Linux ...

> Our Debian installation is actually not particularly "scientific". The big
> packages like ROOT and Cernlib are installed from source as our
> scientists need dozens of customized versions installed at the same
> time and don't really honor (maybe understand?) the merits of proper package
> management.

> Nevertheless we profit a lot from the 2000+ packages we pull from the
> standard Debian repositories for our default desktop installation.

> In the high energy physics community we are quite alien as everybody
> else uses "Scientific Linux" that has been created by CERN and Fermilab
> when Red Hat changed its licensing. At that time we already were happy
> with Debian and promoted it as an alternative but unfortunately the big
> sites were too scared to make that move (different packaging system, no
> commercial support, the usual complaints).

> BTW: We currently have an open position in our HPC group [3]. The job offer 
> is in German only unfortunately m(. Basically the job description covers all 
> our tasks from high-level configuration management with Chef to fiddling with 
> broken hardware in case of an urgent emergency (this became more and more 
> seldom during the years). The new position will probably focus a lot on 
> monitoring, which did not grow fast enough with the growth of the farm during 
> the last years.
> Please contact me if you have any questions and don't hesitate to send any 
> applications in English.

> Cheers,
>       Christopher


> [1]http://gsi.de/
> [2] http://www.helmholtz.de/en
> [3] http://gsi.de/informationen/internal/vw/pa/1920-12.50.html
-- 
Yaroslav O. Halchenko
Postdoctoral Fellow,   Department of Psychological and Brain Sciences
Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
Phone: +1 (603) 646-9834                       Fax: +1 (603) 646-1419
WWW:   http://www.linkedin.com/in/yarik        


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