hpc

A century of work

hpc
Today the sum total of work computed on our clusters since we started in 2010 surpassed 100 years.  That's the equivalent of a fairly powerful processor working flat out for a century.  While we've accumulated quite a large number of…
Read More

Array Jobs

hpc
Recently we had been given a challenge by a student who needed to analyze thousands of input files with an application but found it cumbersome to submit each input file individually.

We started looking at a "for loop" to run…
Read More

Want to be kept informed about your HPC job ?

hpc
The following PBS directives can be included in the job submission script. #PBS -m abe #PBS -M emailaddy{at@}domain.co.za The " -m abe " alerts you for abort, begin and end for your job. If you prefer to only be…
Read More

Playing fair

hpc
In anticipation of more users being added to the Hex cluster we have modified the scheduling rules.  Previously there was an open policy:
 USERCFG[DEFAULT] MAXJOB=180
 USERCFG[DEFAULT] MAXPROC=180
 USERCFG[DEFAULT] MAXNODE=180
This effectively allowed users to consume 66% of the cluster at
…
Read More

Africa-Arabia ROC All-Hands Meeting – Pretoria / March 2013

hpc
This past week the UCT-ICTS-HPC team attended the Africa-Arabia ROC All-Hands meeting in Pretoria. The meeting brings about site administrators from around the country to discuss the robustness of the regional operations centre, increasing the suite of user applications and…
Read More

GPGPU Computing with CUDA Workshop

hpc
29th April - 3rd May 2013
Department of Computer Science University of Cape Town
Although originally designed to handle computation for computer graphics, fully programmable Graphical Processing Units (GPUs) now offer a powerful alternative to general purpose computational applications traditionally
…
Read More

Comparing apples and spark plugs

application, hpc
There is no definitive correlation between CPU utilization and RAM when looking at diverse science applications.  The top usage combination of CPU and RAM is a computational biology application focusing on nucleic acid folding.  The computer science application requiring CPU
…
Read More
Menu