[Beowulf] Cluster networking/OSs
j.sassmannshausen at ucl.ac.uk
Fri May 8 13:35:54 PDT 2015
what kind of jobs do you want to run on the cluster?
What I am after is: is it mainly number crunching, large parallel jobs,
serial jobs, jobs which do a lot of disc IO, need much memory,
For example, I am not the 'master' of 8 clusters and most of them have
different purposes. The largest cluster has a fast InfiniBand network as
people are running parallel jobs there, sometimes up to 128 cores or so.
Large for that cluster but still tiny for others, I know.
A different cluster has a web interface for the users, so here they can
submit structures, see whether they have been calculated before, re-do
it or just get the results. So here I have installed a webserver and a
database (both in virtual machines, incidentally).
I am using Debian as the OS here, with wheezy and jessie for the
versions. I use PXE for the installation of the nodes which gives me the
advantage I got a rescue OS as well in case there is a disc problem. The
nodes get their IP from a DHCP server and I am running a local DNS
server so the command
$ ssh node1
does actually work throughout the cluster.
I hope that helps you a little bit.
All the best from a sunny Graz where I am on vacation!
On 08/05/15 20:30, Trevor Gale wrote:
> Hey Everyone,
> I’m fairly new to linux clusters and am trying to learn as much as I can about specifically networking on clusters and different operating systems run across clusters. Does anyone know any good resources to learn from?
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Dr. Jörg Saßmannshausen, MRSC
University College London
Department of Chemistry
email: j.sassmannshausen at ucl.ac.uk
Please avoid sending me Word or PowerPoint attachments.
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