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HPC @ Uni.lu

High Performance Computing in Luxembourg

The UL HPC platform is composed of 5 clusters:

Clusters organization

Each cluster is organized according to the following generic scheme:

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General Organization of UL HPC cluster

As can be seen, our clusters consist of:

  • a front-end server access-*.uni.lu that serves as an interface and access point to the cluster
  • an adminfront server, which is only relevant for the management team. It hosts as many VMs (under the Xen hypervisor) as there are services to operate the cluster
  • a shared storage area, based on NFS and, in somes cases, Lustre, which permit the sharing of data across the cluster
  • a set of computing nodes which can be reserved and used for a given period of time by the users of the cluster via the OAR batch scheduler.
  • a fast interconnect topology that establishes high performance communication between the cluster elements

Hardware Overview

All clusters feature Intel processors, under the following micro architectures (newest to oldest):

Operating Systems

Each computing node runs the Debian Linux operating system, version 7 (Wheezy) and you’ll have to interface with them by using the command line.

Thus, you are more than encouraged to become familiar - if not yet - with Linux commands. We can recommand the following sites and resources:

During April 2015 the HPC platform has been upgraded to Debian 7 (Wheezy). The migration plan and the changes you will need to perform in your workflows is documented here