21st Call for Proposals of PRACE Project Access open until 5 May 2020 – Apply now!



The 21st Call for Proposals of PRACE Project Access welcomes a new system and more access that ever to GPUs.

The 21st Call for Proposals of PRACE Project Access is now open until 5 May 2020, 10:00 CEST. The Terms of Reference can be found here. The Technical Guidelines for Applicants can be found here. The Project Scope and Plan template can be found here.

Overall, the Call includes 10 systems, including a completely new one (JUWELS Booster). The 21st Call will offer more GPUs than ever before to researchers on three different systems (Piz Daint, Marconi100 and JUWELS Booster).

The PRACE systems that are offering resources in the 21st Call are the following:

Core Hours
(node hours)
Minimum request
(core hours)
HAWKHPE ApolloGCS@HLRS (DE)345 million
(2.7 million)
35 millon
Joliot-Curie KNLBULL Sequana X1000GENCI@CEA (FR)88 million
(1.4 million)
15 million
Joliot-Curie RomeBULL Sequana XH2000GENCI@CEA (FR)459 million
(3.6 million)
15 million
Joliot-Curie SKLBULL Sequana X1000GENCI@CEA (FR)124 million
(2.6 million)
15 million
JUWELS BoosterBULL Sequana XH2000GCS@JSC (DE)35.04 million (*)
(0.73 million)
5.76 million(*)
JUWELS ClusterBULL Sequana X1000GCS@JSC (DE)70 million
(1.5 million)
35 million
Marconi100IBM Power 9 AC922 WhiterspoonCINECA (IT)660 million (*)
(1.875 million)
35 million
Use of GPUs
MareNostrum 4Lenovo SystemBSC (ES)T.B.D.30 million
Piz DaintCray XC50 SystemETH Zurich/CSCS (CH)510 million
(7.5 million)
68 million
Use of GPUs
SuperMUC-NGLenovo ThinkSystemGCS@LRZ (DE)121 million
(2.5 million)
35 million

Applications for Project Access must use codes that have been previously tested and that demonstrate high scalability and optimisation to multi-core architectures or that demonstrate a requirement for ensemble simulations that need a very large amount of CPU/GPU overall.

More information can be found here:

For development and scaling of HPC codes, PRACE offers Preparatory Access here.


The mission of PRACE (Partnership for Advanced Computing in Europe) is to enable high-impact scientific discovery and engineering research and development across all disciplines to enhance European competitiveness for the benefit of society. 

PRACE seeks to realise this mission by offering world class computing and data management resources and services through a peer review process. 

PRACE aisbl is funded by the PRACE Members The Implementation Phase of PRACE receives funding from the EU’s Horizon 2020 Research and Innovation Programme (2014-2020).

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