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HPC @ Uni.lu

High Performance Computing in Luxembourg

The UL HPC platform is scattered among two sites (Kirchberg in Luxembourg and Belval in Esch-sur-Alzette) and 3 server rooms detailed below.

Belval Campus

Centre De Calcul (CDC)

Established over two floors underground (CDC-S01 and CDC-S02) of ~1000~100m2 each, the CDC features five server rooms per level (each of them offering ~100m2 as IT rooms surface). When the first level CDC-S01 is hosting administrative IT and research equipment, the second floor (CDC-S02) is primarily targeting the hosting of HPC equipment (compute, storage and interconnect).

A power generation station supplies the HPC floor with up to 3 MW of electrical power, and 3 MW of cold water at a 12-18°C regime used for traditional Airflow with In-Row cooling. A separate hot water circuit (between 30 and 40°C) allow to implement Direct Liquid Cooling (DLC) solutions as for the Aion supercomputer in two dedicated server rooms.

Location Cooling Usage Max Capa.
CDC S-02-001 Airflow Future extension 280 kW
CDC S-02-002 Airflow Future extension 280 kW
CDC S-02-003 DLC Future extension - High Density/Energy efficient HPC 1050 kW
CDC S-02-004 DLC High Density/Energy efficient HPC: aion 1050 kW
CDC S-02-005 Airflow Storage / Traditional HPC: iris and common equipment 300 kW

LCSB Building (Biotech I)

The LCSB building hosts the most recent server room which is nearly completely dedicated to the Gaia cluster.

  • LCSB Server room Characteristics…

    • Opening date: 2010
    • 14 APC Standard racks Netshelter SX 42U 750mm Wide * 1200mm Deep Enclosure
    • Area: 110.7 m²
    • Total power: 200kW (160kW for the UL HPC)
      • 4 “High power” racks (30kW)
      • 8 “Low Power” racks (4 powered at 8kW, 4 at 10kW)
      • 2 racks at 6 kW
    • Argonite-based (50% azote, 50% argon) fire-extinction system
    • APC in-Row Cooling implementation

Kirchberg Campus

CS.43 server room

  • CS.43 Characteristics…

    • Opening date: 2009
    • 14 APC Standard racks Netshelter SX 42U 750mm Wide * 1200mm Deep Enclosure
    • Area: 130m²
    • Most racks host SIU servers
    • UL HPC racks are designed at 14kW
    • Argonite-based (50% azote, 50% argon) fire-extinction system
    • APC in-Row Cooling implementation
    • Most racks host SIU servers
    • UL HPC racks are designed at 14kW

AS.28 server room

This is the historical server room that used to host the first cluster in 2007, more precisely the k-cluster-* and the b-cluster-* nodes (now deprecated) of the Chaos cluster. In 2009, facing cooling issues, a single APC rack (18kW) was installed to host the new elements of the cluster.