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This is a summary of notable changes introduced in the last two years. We continue to maintain all machines updated to the last NixOS release (currently NixOS 25.05). New compute node: fox We have a new fox machine, with two AMD Genoa 9684X CPUs and two NVIDIA RTX4000 GPUs. During the last months we have been doing some tests and it seems that most of the components work well. We have configured CUDA to use the NVIDIA GPUs, as well as AMD uProf to trace performance and energy counters from the CPUs. ...

This is a summary of notable changes introduced in the jungle cluster in the last months. New Ceph filesystem available We have installed the latest Ceph filesystem (18.2.0) which stores three redundant copies of the data so a failure in one disk doesn’t cause data loss. It is mounted in /ceph and available for use in the owl1, owl2 and hut nodes. For now it provides 2.8 TiB of space and it is expected to increase when the last storage node is installed. ...