Posted in 2022

VSC Lunch Session on OpenFOAM

On October 4th 2022, VSC is organizing a lunch session on the topic of “CFD meets HPC” (OpenFOAM).

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New Globus endpoint for Hydra

We have a new Globus endpoint to access the storage of Hydra: VSC VUB Hydra. The old endpoint has been removed.

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Hydra storage down

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.

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More Ampere GPUs in Hydra

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 joining the ampere_gpu partition and share the same CPU, memory and GPU configuration with the other nodes in this partition.

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Job monitoring and checkpoints

We have updated the documentation with new information on job monitoring, restarting jobs from checkpoints and managing data between VSC_DATA and VSC_SCRATCH in your jobs.

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External network connection cut

23:00 The issues with the network have been solved and the connection of Hydra to external systems is back to normal.

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Scheduled maintenance for Hydra in July

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.

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Quota data synchronisation is now working again

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.

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Slow network connection to external systems

10:00 The issues with the network have been solved and the connection of Hydra to external systems is back to full speed.

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VSC Users Day 2022

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.

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Hydra-VSC network failure

14:30 The firewall has been repaired, and the connections between Hydra and the other VSC clusters are again working.

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Irregular low performance of Hydra’s new storage

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_HOME and VSC_DATA back to normal levels. The login nodes will be rebooted during the process and they will be unavailable for 10 min.

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Hydra move to VUB Etterbeek campus completed

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.

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Kickoff of operation to move Hydra into campus

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 hpc@vub.be and we will communicate the progress of the move on this post.

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User survey 2022

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.

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Hydra power cut

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.

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Hydra moves to VUB Etterbeek campus

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.

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Multiple software packages updated in Hydra

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:

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VUB-HPC user survey 2022

Please take some time (~10 minutes) to fill out the short user survey at https://hpc.vub.be/survey2022

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VSC/CÉCI Workshop on Managing Workflows in HPC

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.

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GAMESS-US v2021-R2 available in Hydra

The most recent release of GAMESS-US with version 2021-R2-patch1 is now installed in Hydra.

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Survey about trainings

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.

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