The 1st European Exascale supercomputer will be installed at the Jülich research center

It was on 13 June in Kajaani, Finland, at the inauguration of LUMI, Europe’s fastest supercomputer, that the decision was announced: EuroHPC JU, the European Joint Undertaking for high-performance computing, has selected Forschungszentrum Jülich, a partner of the Gauss Center for Supercomputing in Germany, to power Europe’s first next generation supercomputer, JUPITER (Joint Undertaking Pioneer for Innovative and Transformative Exascale Research).

JUPITER will therefore be installed from 2023 in a specially designed building on the Forschungszentrum Jülich campus and will be operated by the Jülich Supercomputing Center (JSC), whose JUWELS and JURECA supercomputers are currently among the most powerful in the world. JSC had applied for an advanced supercomputer as a member of the Gauss Center for Supercomputing (GCS), an association of the three JSC national supercomputer centers in Jülich, the High-Performance Computing Center Stuttgart (HLRS) and the Leibniz Computing Center (LRZ) in Garching.

Four other sites have also been selected to host mid-range supercomputers with petascale or pre-exascale capabilities

  • DAEDALUS hosts the national research and technology infrastructures in Greece,
  • LEVENTE, host of the Government Agency for IT Development in Hungary,
  • CASPIr organized by the National University of Ireland Galway (NUI Galway) in Ireland,
  • EHPCPL hosted by CYFRONET AGH Academic Computing Center (CYFRONET) in Poland.

JUPITER exascale supercomputers

The supercomputer was to be the first in Europe to exceed the threshold of one trillion calculations per second, as Frontier, the American supercomputer, is the only one to have passed in May last year. It should help respond to current scientific challenges (combating pandemics, global warming, sustainable energy production, etc.), allow intensive use of artificial intelligence and analysis of large amounts of data. The total cost of the system is 500 million euros: EuroHPC JU will finance half of it, the German Federal Ministry of Education and Research (BMBF) and the State Ministry of Culture and Science of North Rhine-Westphalia (MKW NRW), where JSC is located will provide the remaining € 250 million.

A modular supercomputing architecture

Like Jülich’s current JUWELS supercomputer, JUPITER will be based on a dynamic and modular supercomputing architecture developed by Forschungszentrum Jülich together with European and international partners in the framework of EU DEEP research projects.

In a modular supercomputer, different computer modules are connected together, which makes it possible to distribute program parts of complex simulations over several modules and to the different material properties that must be used optimally in each individual case. Jupiter will also be able to integrate new technologies in the future, such as quantum computers or neuromorphic modules.

According to Jülich, ” in its basic configuration, JUPITER will have an extremely powerful booster module with highly efficient GPU-based computing accelerators. Massively parallel applications will be accelerated by this booster in the same way as a turbocharger, for example to calculate high-resolution climate models, develop new materials, simulate cellular processes and complex energy systems, promote basic research or train the next generation of computers. intensive. machine learning algorithms. »

A green supercomputer

One of the challenges for supercomputers is their energy efficiency. The average power of JUPITER should reach 15 megawatts (MW), while Frontier, 1st in the Green 500 ranking and Top500 of the most powerful supercomputers in the world, is around 21MW. LUMI, 3rd in the Green 500 and Top500, consumes around 3MW.

JUPITER was designed as a “green” supercomputer » and will be supplied with green power. The cooling system makes intelligent use of the generated heat: like its predecessor JUWELS, JUPITER will be connected to the new low-temperature network on the Forschungszentrum Jülich campus. In addition, LUMI is also supplied with green energy, and recycling the heat it produces will make it possible to heat the neighboring houses.

Hendrik Wüst, Prime Minister of the Land of North Rhine-Westphalia, said:

“Forschungszentrum Jülich has once again established itself with its unique modular supercomputer architecture: Europe’s first exascale supercomputer is coming to North Rhine-Westphalia. This is a sign of recognition for the scientific community and the overall expertise of our country. As a website, it provides comprehensive opportunities for a massive increase in system performance, up to the integration of quantum modules in an exascal computer. The technologies currently being developed will shape future applications in all areas related to the simulation of highly complex systems and allow us to make even more reliable statements in critically important areas such as climate and brain research, traffic management and the development of evacuation scenarios for major events. This groundbreaking research in the field of supercomputers gives us every opportunity to solve the great challenges of our time. As a federal government, we are pleased to be able to support this groundbreaking development. »

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