European HPC Exascale Effort

The European HPC landscape is changing! The year 2019 sees the implementation of the EuroHPC JU.

The European High-Perfomance Computing Joint Undertaking (EuroHPC JU) pools European resources to develop top-of-the-range exascale supercomputers for processing big data, based on competitive European technology. More information on EuroHPC page.

Our 2018 European HPC Handbook is available.

This professional publication includes up-to-date details of the European HPC Technology, Co-Design  and Application Projects within the European HPC ecosystem.



The European HPC Ecosystem and its technology, application infrastructure pillars are now being supported by a €700 million  investment programme by the European Commission. There are also other more ambitious plans to ensure European leadership in HPC technology, application and infrastructure provision, which includes the delivery of a HPC system based on European technology - ranked amongst the top three in the world in 2022 - and the development of a European HPC low-power processor.

What follows below is a short summary of the development of European HPC. There is a list of documents and links at the end of this page which can be used as references (also several links are included in the text).

Download this summary in PDF.

1. European HPC is based on three pillars: Research Infrastructure (PRACE - Partnership for Advanced Computing in Europe), HPC Technology (represented by ETP4HPC) and Application Expertise (developed through the Centres of Excellence in Computing Applications  (CoEs)). PRACE is the European HPC infrastructure for science - it runs calls for academic projects to be executed in its network of supercomputing resources across Europe. It also runs a HPC programme for SMEs called SHAPE - SME HPC Adoption Programme in Europe.  ETP4HPC is a HPC industry-led think tank. The CoEs are projects that consolidate the European HPC applications expertise.

2. The development of European HPC is based on an EC strategy paper from 2012 - Communication "High Performance Computing (HPC): Europe's place in a global race". This document stipulates the operation of the three pillars above.

3. The Technology and the Applications pillar of the ecosystem form a contractual Public-Private Partnership (cPPP) with the European Commission. The objective of the cPPP is the development of European HPC technology and applications. The cPPP monitors the implementation of the European HPC strategy and its board meets twice a year. It serves as a forum in which the stakeholders involved have an opportunity to discuss this process with the EC and exchange mutual commitments.

4. The European HPC strategy also provisions the establishment of a European HPC Technology Platform, which is now ETP4HPC (our association). At the moment, EU industry provides about 5% of HPC resources worldwide, but consumes one third of them and our objective is to increase the market share of the European technology vendors. Our main deliverable is the European HPC Technology Roadmap - Strategic Research Agenda (SRA). ETP4HPC is led by European HPC technology vendors and it also includes research centres and users.

5. The strategy above was 'upgraded' in 2016 - Europe has now ambitious plans within its European Cloud Initiative. One objective of the European Cloud initiative is to have a supercomputer based on EU technology amongst the world top three by 2022.

6. The European HPC ecosystem is coordinated by the EXDCI project (European eXtreme Data and Computing Initiative - coordinating the European HPC Strategy). EXDCI organises an annual event called the 'European HPC Summit Week'.

7. The European Commission runs 'calls' for proposals for projects in the area of technology and application. A total of €700 million  has been committed to the development of HPC technology and applications within the EC Horizon 2020 programme. A summary of the FP7-funded (the previous programme) technology projects can be found here whilst a list of all Horizon 2020 FETHPC (Future and Emerging Technologies - HPC) funded projects is here. EXDCI  has a web page ( - click on 'Collaboration') dedicated to summaries of all the European Projects. The current (as of Aug 2017) open HPC technology call can be found here. Below is the current landscape of European HPC projects (the size of the dots indicating the project funding – e.g. Mont-Blanc 3 = €8 million).

8.  The EC HPC Technology (and other - e.g. application) calls are based on the Strategic Research Agenda (SRA) by ETP4HPC.  The SRA is the European Roadmap towards Exascale and it is the work of ETP4HPC experts. As we speak (Aug 2017), we are working on its third issue (a second full version), which should cover the period until the end of Horizon 2020 programme. Each project submitted within this programme should address challenges identified in the SRA. The model on which we build our  SRA upon is:

9. The current SRA work has two priorities (apart from addressing the technological areas of HPC development): 1-Extreme-scale Demonstrators (EsDs) and 2-Big Data. The EsDs are the prototypes of the future European exascale machines and we have developed their specifications and requirements, to be included in the SRA and implemented via an EC call. Our dialogue with the European Big Data Community (BDVA - Big Data Value Association) aims at synchronising the efforts of the two communities. Some sections of our SRA and the BDVA Roadmap will reflect this work. The image below explains the role of the EsDs.

10. It is expected that there will be at least one call for EsDs (prototypes) and a new call for CoEs (application expertise) until the end of the Horizon 2020 programme. The details of the remaining part of the programme will be communicated in Q4 2017.  If our suggestions are accepted, the total Horizon 2020 funding will look like this:

11. EuroHPC Joint Undertaking (JU) is  an initiative set up by European Member States and the European Commission committing to the delivery of European world-class HPC systems. The target is to have at least two pre-exascale computers by 2020 and  toreach full exascale performance by 2023. The objective is also to define testbeds for HPC and big data applications that make use of these supercomputers for scientific, public administration and industrial purposes. Please check the EC slides on EuroHPC JU (March 2018).


12. The European Processor Initiative (EPI) gathers 23 partners from 10 European countries, with the aim to bring to the market a low power microprocessor. It gathers experts from the High Performance Computing (HPC) research community, the major supercomputing centres, and the computing and silicon industry as well as the potential scientific and industrial users. Through a co-design approach, it will design and develop the first European HPC Systems on Chip and accelerators. Both elements will be implemented and validated in a prototype system that will become the basis for a full Exascale machine based on European technology.


13. There is also an Important Project of Common European Interest (IPCEI) on HPC and Big Data Enabled Applications, which serves as a financing mechanism for the European exascale ambitions.


14. The logic around the EU investments (as described above - i.e. the FET and CoE calls, EsDs, EuroHPC, low-power processor, etc.) and their timeline is shown below (courtesy of the European Commission). /FET = Future and Emerging Technologies, LEIT = Leadership in Enabling and Industrial Technologies, ICT = Information and Communication Technologies , CEF = Connecting European Facility/

15. ETP4HPC has issued a Position paper (2015) to define its international collaboration strategy. ETP4HPC helps the European Exascale projects develop international collaboration relationships. This work is being carried out within the EXDCI project, which its objective is in coordinating the entire European HPC strategy.



EC slides on EuroHPC JU (March 2018)

EU site on European HPC Strategy

PRACE - Partnership for Advanced Computing in Europe

SHAPE - SME HPC Adoption Programme in Europe

cPPP - contractual Public-Private Partnership

Digital Single Market

European Cloud Initiative

EXDCI - European eXtreme Data and Computing Initiative - the European HPC strategy coordination project

SRA - ETP4HPC Strategic Research Agenda

BDVA - the European Big Data Value Association


IPCEI - Important Project of Common European Interest on HPC and Big Data Enabled Applications

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