DEISA, the Distributed European Infrastructure for Supercomputing Applications, is a consortium of leading national Supercomputing centres that aims at fostering the pan-European world-leading computational science research.

DEISA deploys and operates a persistent, production quality, distributed supercomputing environment with continental scope. It aims at delivering a turnkey opera­tional solution for a future European HPC eco­system. And by extending the European collaborative environment in the area of supercomputing, DEISA is paving the way towards the deployment and operation of a persistent cooperative European HPC ecosystem, as suggested by ESFRI.

DEISA2, funded by the European Commission in FP7, continues to develop and support the pan-European distributed high performance computing infrastructure established since 2002 within the predecessor project, DEISA1, that was funded in FP6. The DEISA infrastructure is based on a tight coupling of eleven national supercomputing centres from seven European countries, using dedicated network interconnections of GÉANT2 and the NRENs.

The DEISA consortium is currently consolidating the existing HPC infrastructure and services. Activities and services relevant for Applications Enabling, Operations, and Technologies are continued and enhanced, as these are indispensable for the effective support of computational sciences in the area of supercomputing. In addition, DEISA is extending the service provisioning model towards the inclusion of non-localized Virtual Science Communities. Accordingly, collaborative activities are expedited with further European and international initiatives.