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ECMWF operates several large computing
systems. The following diagram shows the main components and how
they are connected together.
ECMWF Computer System |
The new IBM Supercomputer |
The major subsystems and a history
of supercomputer use at ECMWF are described in more detail here.
From its beginning, ECMWF has used large supercomputer systems. In 1977, the
Centre's scientists had access to machine number one in the CRAY
1 series. In June 1977 before the opening of the permanent headquarters
at Shinfield Park in Reading, ECMWF contracted for delivery of its
own supercomputer, a CRAY 1-A.
The CRAY 1-A was a single processor
computer capable of a sustained performance of 50 Megaflops (50
million arithmetic operations per second).
ECMWF now uses an IBM Supercomputer
comprising 2 clusters each with 155 pSeries p5-575+ servers, each server having
16 1.9 GHz Power5+ processors. More details of this system can be found
here.
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