This is the User guide for the Atos Sequana XH2000 HPCF, installed in ECMWF's data centre in Bologna. This platform provides both the HPCF (AA, AB, AC, AD complexes) and ECGATE services (ECS), which in the past had been on separate platforms.
Below you will find some basic information on the different parts of the system. Pleaseclick on the headers or links to get all the details for the given topic.
Due to an update required on the Lustre filesystem serving HPCPERM, SCRATCH as well as fws4, the ECMWF HPCF were unavailable to run any standard jobs on:
Wednesday 2025-03-05 from 08:30 to 16:30 UTC
During the session, queued jobs were kept on hold with the reason "Licenses", and started once the session is over. At the same time, there was a shorter, concurrent session on the AC cluster requiring a reboot of login, GPIL and GPU nodes. This session caused those nodes, including hpc-login and hpc-batch, to be unavailable between 08:30 - 10:30 UTC. Note that, while you might after 10:30 UTC, the Lustre filesystems mentioned above remained unavailable and any jobs submitted were on hold until the end of the longer session.
If you use conda at ECMWF, please review our migration documentation for step-by-step instructions on how to detect any environments which may be in breach of Anaconda's Terms of Service, and to migrate them to the suggested alternatives.
Make sure any environments or installations in breach of Anaconda's Terms of Service are addressed before the end of the year. Note that access to Anaconda's default channels may be blocked at that point.