Posted in 2022
On Wednesday 23 November 2022 around 18:00 we’ll reboot the Hydra login nodes.
On November 23 and 24 2022, HPE Center of Excellence and the LUMI User Support Team organize a hybrid training (Brussels & online) titled “Detailed introduction to the LUMI-C environment and architecture”. Information about the event, agenda, venue, travel and accommodation can be found here: https://www.lumi-supercomputer.eu/events/detailed-introduction-to-the-lumi-c-environment-and-architecture/.
We are pleased to announce the immediate availability of data snapshots for the shared scratch storage of Hydra. Data snapshots save the state of your files and folders in the past, allowing to recover lost data from your account.
On Monday October 24th 2022 we’ve reinstalled two key components in the foss/2021b and foss/2022a toolchains to fix two important bugs.
We are pleased to announce our next on-site Linux training session, in cooperation with the Vlaams Supercomputer Centrum (VSC).
We are pleased to announce our next on-site HPC training session, in cooperation with the Vlaams Supercomputer Centrum (VSC).
On October 4th 2022, VSC is organizing a lunch session on the topic of “CFD meets HPC” (OpenFOAM).
We have a new Globus endpoint to access the storage of Hydra:
VSC VUB Hydra. The old endpoint has been removed.
13:00 The issues with the storage have been solved. Login to Hydra and all other VSC clusters is back to normal. Please check all jobs that were running when the storage issues started for errors, and resubmit if necessary.
We are happy to announce the immediate availability of 2 more GPU nodes in
Hydra adding 4 new Nvidia A100 GPUs to the cluster. These new nodes are
ampere_gpu partition and share the same CPU, memory and GPU
configuration with the other nodes in this partition.
We have updated the documentation with new information on job monitoring,
restarting jobs from checkpoints and managing data between
VSC_SCRATCH in your jobs.
23:00 The issues with the network have been solved and the connection of Hydra to external systems is back to normal.
15:00 All maintenance tasks have been completed ahead of time and the cluster is back online. The job queue is resumed and all users can now log in and submit new jobs.
Since the move of Hydra to the Pleinlaan campus, the synchronisation of quota usage to the VSC accountpage was not working. We have now been able to fix it.
10:00 The issues with the network have been solved and the connection of Hydra to external systems is back to full speed.
The annual VSC Users Day is back! After two years of online gatherings, VSC Users Day 2022 will be live in Ghent on June 21st, 2022.
14:30 The firewall has been repaired, and the connections between Hydra and the other VSC clusters are again working.
16:00 We have pinned this issue down to a specific configuration of the
login nodes. Today, April 21st, at 21:00 (CEST) we will apply an urgent fix
to the login nodes that will increase the filesystem perfomance of
VSC_DATA back to normal levels. The login nodes will be
rebooted during the process and they will be unavailable for 10 min.
We are happy to announce that the move of Hydra to the new data center of VUB in Etterbeek campus is complete. The cluster is now back open to VSC users.
The start of the operation to move the Hydra cluster to VUB Etterbeek campus is upon us. Hydra will be closed to access from Monday, April 11th at 00:00 (CEST). The move is planned to last 1 week. We will continue to be reachable at firstname.lastname@example.org and we will communicate the progress of the move on this post.
We have published the results of our yearly user survey, conducted in February 2022. Feedback from users’ experiences in Hydra adds valuable insight into their needs, what works well, and what needs further improvement.
We’ve managed to get Hydra back to normal without data loss. The scheduler is running again and the login nodes are open. We’ve requeued all jobs that were running at the time of the power cut.
Hydra will very soon move from ULB Solbosch campus to the recently upgraded VUB data center on the Etterbeek campus. This change will bring improved power supply, cooling and security measures to our HPC cluster. The move is scheduled in the week of April 11-15.
The HPC team has been hard at work in the past month updating and testing many of the major software packages in Hydra. We invite all users to check these updates which include minor revisions of exiting versions with bug fixes and major new releases:
Please take some time (~10 minutes) to fill out the short user survey at https://hpc.vub.be/survey2022
On 15 and 16 February, VSC and CÉCI are organizing a free online 2-day workshop on the topic of managing workflows on HPC clusters.
The most recent release of GAMESS-US with version 2021-R2-patch1 is now installed in Hydra.
VUB is participating in two big EU projects under the EuroHPC umbrella, the LUMI supercomputer project and the EuroCC project. LUMI will give you access to a new supercomputer infrastructure with large amounts of compute/storage/cloud resources (you will hear more about this soon), while EuroCC aims to foster the use of HPC in its broadest sense.