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About the cluster

The cluster consists of around 8000 compute cores and a distributed storage facility with 3.8 PB of raw disk capacity. All machines are connected to a 10Gbit local network. The center is connected via a high speed 10Gbit/s connection to the outside world, allowing for rapid data download from Tier-1 centers. The computing infrastructure was built in Estonia through the ETAIS project and is integrated as Estonian Tier-2 center into the global Worldwide LHC Computing Grid computing grid (WLCG).

General principles

The operations and use of the cluster is based on the following:

  • the primary user of the cluster is the CMS collaboration through the WLCG infrastructure
  • spare resources are provided for KBFI-KEAL, the wider KBFI and external users based on scientific cooperation agreements
  • unless agreed otherwise, all resources are provided on an "as-is / best-effort" basis
  • issues are fixed and new features are deployed on a best-effort basis
  • weekends, state holidays, vacation periods and periods of extreme electricity prices or extreme weather may result in reduced availability
  • in general, jobs are limited to 48h max runtime, longer runtimes cannot be guaranteed
  • jobs in the special long queue may run for longer than 48h, but can be subject to unnanounced aborting if urgent maintenance is required
  • cluster use outside of the WLCG infrastructure is based on local fairshare