The IBM Supercomputers 

Computer Systems Overview

Supercomputer History IBM Supercomputer Parallel Applications Data Handling System Disaster Recovery System Highly Available Servers General Purpose Servers Linux Cluster Desktop Systems Local Area Network Wide Area Network

ECMWF's current High Performance Computing Facility (HPCF) is the result of a competitive procurement carried out in 2007.  This resulted in IBM being awarded a two phase service contract to supply and support a HPCF until mid 2014. 

The first phase has been in operation since 2009 and  is based on two identical but independent IBM POWER6 Cluster 1600 supercomputer systems. Information about this "Phase 1" system can be found here.

Starting in October 2012 the operational service will be migrated to two new clusters based on IBM POWER7 technology. Information about this "Phase 2" system can be found here.