At the Horizon 2020 session of the ISC 2015 in Frankfurt (DE), in July 2015 Sergi Girona (BSC) talked about the EXDCI project, an interdisciplinary CSA, "European eXtreme Data & Computing Initiative", whose objectives are to coordinate the development and implementation of a common strategy for a European HPC Ecosystem. More about the initiative can be found in Cordis: http://cordis.europa.eu/project/rcn/197935_en.html
Sergi Girona is the project coordinator and PRACE chair of the board of directors.