Cerfacs Enter the world of high performance ...

IT management and user support

Beyond standard computing frames (mail, web, accounting systems …) CERFACS’  research works rely on availability and intensive use of High Performance Computing.

  • computers allowing to run the numerical simulations developed by the teams,
  • high storage capacities housing the simulations’ results,
  • pre and post-processing services that prepare and ease the analysis of obtained results,
  • fast interconnection networks for both internal and external exchanges between the different computing and storage resources.

Today, CERFACS hosts 2 clusters for a global peak of about 1.3 Pflops/s, a primary space disk of 3.4 Petabytes inside the clusters and a secondary space disk of 3 Petabytes hosted on a Spectrum Scale server.

All these servers are interconnected on a backbone at 10 Gb/sec. Accesses to our partners’ computers (Météo-France and CCRT), and to national resources for research (Genci) and international ones (Prace and Incite) enlarge our global simulation capacities.

Head of I.T. Management :

Nicolas Monnier

HPC software engineer :

Isabelle d’Ast

System engineers :

Fred Blain

Gérard Dejean

Fabrice Fleury

Patrick Laporte



ISAF project : To accelerate the transition to SAFs, SAFRAN and CERFACS have together obtained an allocation of 44 million CPU hours on the LUMI-C super-computer as part of the EuroHPC Regular Access call in November 2022.

CERFACS |  11 March 2023

The objective of the ISAF project is to study the impact of SAFs (Sustainable Aviation Fuels) on engine operation and pollutant emissions, using high-fidelity Large Eddy Simulations (LES). The methodology developed at CERFACS combines Analytically Reduced Chemistry (ARC) with a multi-component evaporation model to capture the effect of fuel. The target configurations range from academic burners (CRSB at CORIA, SSB at DLR Stuttgart), to isolated industrial injection systems (MICADO at ONERA, HERON at CORIA) and complete annular combustor configurations (BEARCAT at SAFRAN, NTNU test bench).Read more

A CERFACS article distinguished in Scilight (https://doi.org/10.1063/10.0017474)

CERFACS |  9 March 2023

The recently published paper in Physics of Plasma: "3D particle-in-cell study of the electron drift instability in a Hall Thruster using unstructured grids," by W. Villafana, B. Cuenot, and O. Vermorel ( attracted the attention of Scilight (), whose goal is to present the most interesting research in the physical sciences published in AIP journals."Read more