From the SAGrid page: many of these jobs ran in South Africa (at UCT and CHPC) - glad to be part of the success .
http://www.asrenorg.net/media/news/310-eumedgrid-infrastructures-provided-41000-jobs-for-one-researcher.html…
Spawning obscure pythons
One of our users has been having difficulty migrating his code to our new cluster. We'd installed a newer version of python (2.7.3) and it would appear that in conjunction with mpi4py and OpenMPI the --mca run time tuning and
…Array Jobs
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…
We started looking at a "for loop" to run…
High Availability Core Services for the South African National Grid Infrastructure
The University of Cape Town currently maintains a set of core services for SAGrid running on the EMI and gLite middleware distributions. These set of services form the backbone of the SAGrid and enables the submission of computational jobs. When …
Want to be kept informed about your HPC job ?
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…
Playing fair
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
…Baryon Acoustic Oscillations and the Copernican Principle
The Copernican Principle states that the Earth holds no special place in the universe and that our observation of the universe is similar to that seen from any other position.
One of our research groups recently published a paper in
…