Tag: Betzy

There are currently an issue with LDAP on Betzy, which means that logins will be rejected.

We’ve identified the cause and are working on resolving the problem.
This post will be updated when we have new information to share.

Sorry about the inconvenience!

Users that have logged in earlier can keep trying to log in, as it should eventually work.
Newly created user accounts unfortunately might not be able to log in before this issue is resolved.

Update 26.03, 12:15 – The problem has been solved now. It should now be possible to log in and run jobs as normal on Betzy.

Update 25.03, 13:45 – Vendor is working on the LDAP issue right now, regular login might be disrupted.

Update 19.03, 13:39 – We’re still looking into this with the vendor, which have escalated the issue. It has been identified that this also affects newly created user accounts on the system, which might not be able to log in at all.
Update 17.03, 16:25 – Unfortuntately the issue still exists. We have contacted the vendor to find a solution as soon as possible.
Update 17.03, 12:20 – No resolution on this just yet, though we have identified a potential cause for the problem and are working on getting a fix implemented.
Update 17.03, 09:51 – We’re seeing an increase in failed logins, though it appears to be a little inconsistent. If you’re experiencing this, trying again should work in most cases. We are investigating the cause of these issues.
Update 16.03, 10:26 – The problem is now solved and we’ll monitor the fix throughout the day.

Dear HPC User,

We are pleased to announce that Betzy is opened for pre-production Friday 20 November.

Being close to the weekend, Betzy is opened stepwise. First to prior pilot projects and then for general access Tuesday 24 November.

It has been a long journey, but we are happy to see good performance and stability on the system.

Please note, that during the coming days, changes will be made to the queue system setup, which could necessitate the cancelling of running jobs.

Finally, support will be also offered only from 24 November.

Thank you for your patience and we wish you happy computing!

Best regards,

Lorand Szentannai, on behalf of the preparations team

Dear HPC User,

As mentioned previous week, the validation benchmarks have been stable, and we were ready to run and evaluate the site acceptance test. Unfortunately, the interconnect stability issues reoccured once again. 

We and the vendor have been running extensive tests since. The R&D department from the vendor of the interconnect released a new firmware yesterday afternoon, which was applied already yesterday evening and stress-tests immediately started. In order to be sure that the problem is resolved, several days of testing is needed.

Therefore, we have to postpone the production yet again with a week. Current production estimate is end of week 47.

We can assure you that we are very eager to have the system 100% stabilized and in production and everybody involved in the project (be it from Sigma2, the Metacenter, or vendor) is working intensively with this.

Thank you for your understanding!

Best regards,

Lorand Szentannai, on behalf of the preparations team

Dear HPC User,

Our previous estimate of production on Betzy has proved to be somewhat optimistic. 

With the help of the vendor, we believe we have identified and fixed the cause of the interconnect stability problem on Betzy. The most recent validation benchmarks have been stable, and we will begin the site acceptance test (SAT) within Friday, 6 November. If the machine passes the SAT, it will be handed over to the operations and opened for production. 

The final preparations usually take 1-3 days. We therefore estimate that production will begin on Betzy within next week, week 46.

Best regards,

Lorand Szentannai, on behalf of the preparations team

Dear HPC user,

Our newest supercomputer – Betzy – is unfortunately delayed entering production due to circumstances outside of our control. 

We have had significant delays in getting all the components in place due to slack in logistics caused by the Covid pandemic. However, approximately 94% of the system capacity is now ready installed and configured. Work is ongoing to prepare the outstanding system capacity in the upcoming weeks. 

Benchmarks and pilot testing on Betzy have revealed an intermittent stability problem with the node interconnect. The vendor has been investigating the issue in the past two weeks in order to identify the source of the issue. Our new best estimate is that Betzy go into production in week 45. 

This has consequences for the decommissioning of Vilje and Stallo because we rely on Betzy to free up computational load from the other machines. Thus, the new decommissioning date for Vilje and Stallo is 1. December. We would like the machines to be fully utilized until they are decommissioned, and therefore encourage you to continue using Vilje and Stallo if you still have the opportunity.

Thank you for your understanding!