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Improving the skill and detail of ECMWF predictions is a computationally expensive process. ECMWF has operated a world-class high-performance computing (HPC) facility for weather forecasting since the installation of its first CRAY-1 supercomputer in 1978. Our current system comprises four Atos BullSequana XH2000 clusters.

A new generation of computing systems with exascale capabilities is emerging, which promise improved energy efficiency. Changes are needed throughout the entire NWP processing chain if we are to exploit the new technologies that will lead to exascale capabilities. Key challenges include adapting computer codes to work efficiently on a range of novel computer architectures, improving data handling, and exploiting machine learning. 

ECMWF will also seek to minimise power consumption leading to both effective and efficient computation.

Find out more about our supercomputing facilities and how to access our computing facilities.