This website is deprecated, the old pages are kept online but you should refer in priority to the new web site hpc.uni.lu and the new technical documentation site hpc-docs.uni.lu

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.

HPC @ Uni.lu

Server Rooms