HPC downtime
There will be a full shut down of the Hex HPC cluster this coming weekend. We will be placing Hex into draining mode at 16:00 Friday 14 September and no new jobs will be accepted. The cluster will be shut…
HPC upgrade update
The data center where hex will reside is still being worked on. The spiders nest of network cables under the raised floor has been cleaned out to allow better air flow. All networking will now run in overhead…
HPC series comparison
A comparison of the speed of the various cores in our clusters. Series100 (new): Intel Xeon Gold 6138, 2GHz Series600 (hex): AMD Opetron 6376, 2.3GHz Series400 (hal): Intel Xeon 5506, 2.1GHz SeriesGPU (new): Intel Xeon Gold …
New cluster nodes
It has been a long time in coming, several years in fact, but the first of our new worker nodes went live today on our POC cluster. There is still much to be done, Infiniband is not yet ready, the…
GPU cluster
The new GPU nodes have been installed into our POC cluster and are currently running jobs. We installed the servers into our SLURM cluster to allow us to develop hands on experience in provisioning SLURM partitions with GPU resources, something …
User based CIFS read\write mounts
First you need to ensure that setuid root is set on the CIFS mount executable: chmod u+s /sbin/mount.cifs In order for a user to mount a CIFS share it must be in the /etc/fstab file in the following format: //researchdata.uct.ac.za/<MYDISK>…
Acknowledgements, CPU hours and HPC shutdown
Achievements: Earlier this year we listed our 100th acknowledgement, 20 million computational hours and 2 million jobs processed since inception in 2009. If you have recently published work acknowledging usage of the HPC cluster please let us know. PBS script…
Changes to the UCT Hex HPC cluster
If you no longer require your HPC account please let us know. We will shortly begin disabling accounts of those researchers whose accounts have expired. Due to continued abuse of our cluster resources we are immediately reducing the maximum wall…
Singularity
We have installed Singularity onto Hex and Hal. Singularity is a containerization system that allows users and admins to create contained operating systems and environments. Don’t like SLES on HPC, then run Ubuntu. Don’t want our version of OpenMPI then…