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
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>…
High GPU utilization with no processes running
We noticed a while back that several of our GPU cards retained high utilization even though no processes were running on them.
nvidia-smi Fri Mar 23 13:52:55 2018 +-----------------------------------------------------------------------------+ | NVIDIA-SMI 375.26 Driver Version: 375.26 | |-------------------------------+----------------------+----------------------+ | GPU Name…
Github no longer accessible from Hex
Last year GitHub announced (not very publically) that they would no longer be supporting TLSv1 or TLSv1.1. Unfortunately the GitHub clients and supporting software have not been kept up to date by those supporing numerous OS repos. If you try …
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 …