Evolution of the Cape Sedges
Jack Viljoen, a masters student in the Botany department is working on the evolution of Cape Sedges.
For reconstructing the evolutionary trees of groups like the Cypereae and Schoeneae (Fig. 1),
.... we use Monte Carlo Markov Chain (MCMC) sampling…

Power disruptions
Power to the Rondebosch area dropped again this morning, once for 2 minutes and then a brief brownout just after 11:30. We are assured that this is not "load shedding" by Eskom, although this is of little relief to anyone…
Memory issues
We're currently investigating a memory issue with some of the worker nodes. Memory is not being freed up after jobs complete.
UPDATE - 4 July:
Turns out it's not a memory error. The problem is the way that net-snmp monitors…
Crux tandem mass spectrometry
We recently installed Crux on our cluster for researchers in the IIDMM department at UCT. Unfortunately it's not MPI aware and only runs on single cores. Additionaly the binary we downloaded did not run on the cluster due to a…
Getting Gromacs
Gromacs is used to perform molecular dynamics simulations. It's a popular tool and we decided to install it on our cluster based on the needs of two researchers, one at UCT and the other in Kenya. Gromacs is designed to…
New worker nodes added to ICTS HPC
Over the last week ICTS engineers have been adding 5 new BL460 blades to the cluster. The OS install took place on Tuesday, applications on Wednesday and our first user is already running jobs on the CPUs.
The 400 series…

Computational milestone reached
ICTS's grid cluster recently surpassed 1 computational year with the equivalent of 1 CPU running jobs constantly for 558 days. The sudden jump was the completion of a long term job that had been running for 36 days on 8…