Nov 2011 - UCT HPC

Keeping up appearances

Nov 21, 2011

One of Scientific Linux's stronger points is its stability. It achieves this however by lagging considerably in its suite of default packages, even those provided by the EPEL repository. This is all well and good until some enthusiastic coven of…

Google reCaptcha service via caching or proxy servers

Nov 16, 2011

programming

Googles Recaptcha service is great to get rid of those web bots which enter false information into web forms. Its great for the elimination of SPAM. In most organizations the use of proxy servers or caching servers are used for …

New worker nodes

Nov 10, 2011

hardware, hpc

We've added two new nodes, 213 and 214, to the 200 series. Both nodes have 8GB of RAM. This brings our cluster up to 136 cores.…

RAM upgrade and more worker nodes

Nov 4, 2011

hardware, hpc

The RAM of worker node 209 has been upgraded from 4 to 8GB and the node moved back to the 200 series. We will be deploying a few more 200 series and at least 1 more 400M series worker nodes…

Gluster wobble

Nov 3, 2011

hpc

So we've been making use of GlusterFS for a while now and generally it's been great. Gluster allows us to present unused space on a number of networked servers (our HPC worker nodes) as a single disk pool and make…

Month: Nov 2011

Keeping up appearances

Google reCaptcha service via caching or proxy servers

New worker nodes

RAM upgrade and more worker nodes

Gluster wobble

UCTHPC