Cerfacs Enter the world of high performance ...

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.

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)

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


21 February 2023

Purpose of workshop Take advantage of architectures with new programming paradigms In recent years computation has been exposed to a widely growing heterogeneity of the types of used devices and their manufacturers. This trend is driven by the specialisation of devices to fit the needs of specific workloads, which in turn is the strategy to satisfy the ever-growing demand in compute power. Heterogeneity is present in both high-performance computing and consumer electronics. Today's systems use a multitude of co-processors and accelerators, such as GPUs, TPUs, and FPGAs, in addition to the traditional CPU. However, there isn't a simple, portable and efficient method to develop for these systems. Intel oneAPI (SYCL implementation) aims to fill this role. Getting the maximum achievable performance out of today’s hardware is a fine balance between optimal use of underlying hardware features and using code that is portable, easily maintainable, and power-efficient. These factors don't necessarily work in tandem. They require prioritizing based on user needs. It's non-trivial for users to maintain separate code bases for different architectures. A standard, simplified programming model that can run seamlessly on scalar, vector, matrix, and spatial architectures will give developers greater productivity through increased code reuse and reduced training investment. People Researchers and engineers with HPC knowledge Dates 28, 29, 30 March 2023 Duration 3 days with sessions training Program is available here Registration Free but Mandatory, please send an email to dast@cerfacs.fr   The workshop takes place at CERFACS  and course language is French and english. Read more

CFD for combustion safety – conference at CERFACS, March 21st.

9 February 2023

The CFD for Combustion Safety meeting will take place at CERFACS. Registration is free here: The objective of the meeting is to gather experts in the field of simulations of safety scenarios associated to combustion (fires, explosions, flame-wall interactions, inhibition...), to exchange information and build collaborations on the fundamentals of combustion safety. The web site is : Read more

Safran R&T prize

6 January 2023

Congratulations to Thibault Duranton for his award for the best presentation in 180s, in the Aerodynamics and Combustion category, at the Safran AE R&T Day on January 5, 2023, for his thesis entitled "Advanced modeling of multi-perforated plates for large-scale simulations of new-generation aircraft engines". Read more

6th Workshop on Coupling Technologies for Earth System Models (CW2023)

21 December 2022

CERFACS and Argonne National Laboratory organise the "6th Workshop on Coupling Technologies for Earth System Models (CW2023)" on January 18-20, 2023 at the “Centre International de Conférences” on Météo-France campus in Toulouse, France. The workshop aims to bring together leading researchers and practitioners in the field of coupling infrastructure for Earth System Models. This workshop is the sixth in the series, started in 2010 in Toulouse and followed by Boulder USA (2013), Manchester UK (2015), Princeton USA (2017) and virtual (2020). Topics relevant to the workshop include, but are not limited to: Coupling technology latest developments Use of Coupling Technologies in ESMs or other climate and weather-related coupled systems: successes and failures, original or ground-breaking applications Computational performance of Couplers and Coupled Systems Coupling at exascale on heterogeneous systems. Science of Coupling and Coupling Strategies Integration of coupling technologies into workflows Interaction of data assimilation and coupling technologies Software development processes for complex coupled systems: Approaches for testing of complex coupled models, how code chages are made, build system, configuration system. All details can be found on the CW2023 web page. Read more

Aeronautics & Space Awards: Carlos Pérez Arroyo, Jérôme Dombard and Gabriel Staffelbach are awarded the Vermeil medal

2 December 2022

  Formal Session 2022 of the Air and Space Academy Friday, December 9, 2:00-6:00 pm   📌 in person at the Salle des Illustres - Mairie de Toulouse  💻 and in visio  ✅ Mandatory registration (face-to-face or visio):   During the formal public session of the Air and Space Academy 2022, which will take place on Friday, December 9, starting at 2:00 pm, Salle des Illustres, Hôtel de Ville de Toulouse, in face-to-face and remote sessions, the Vermeil Medal will be awarded (at 5:15 pm) to Carlos PÉREZ-ARROYO, Jérôme DOMBARD, and Gabriel STAFFELBACH to honor the excellence of their work in the realization of the FULLEST project, the first high-fidelity simulation of an aircraft engine.     Read more

CERFACS cited in l’Usine Nouvelle, Industrie et Technologies

25 November 2022

The work of CERFACS, in collaboration with SAFRAN, on the hybridization of physical simulation software with machine learning techniques, has been cited in the magazine l'Usine Nouvelle, and is included in a detailed write-up called "Simulation and machine learning combine their strengths" in the magazine Industries et Technologies this month. This work, supervised at CERFACS by Corentin Lapeyre, and at SAFRAN by Stéphane Richard, is at the forefront of developments in terms of exploiting artificial intelligence tools for the simulation and design of physical systems. Read more

Florent Duchaine has been selected as Associate Editor for the ASME Journal of Turbomachinery

2 November 2022

Florent Duchaine, researcher in the CFD Team of CERFACS, has been selected as Associate Editor for the ASME Journal of Turbomachinery for the period 2022-2025 Read more

Paul CASEAU 2022 thesis prize for Rem-Sophia MOURADI, in the framework of a Cerfacs EDF R&D collaboration

31 October 2022

On November 9, 2022, Rem-Sophia MOURADI will receive the Paul CASEAU prize in the field of modeling and numerical simulation for her thesis "Non-linear data-driven modelling on multidimensional fields : an application to hydro-morphodynamic coastal flows". This research work was carried out in the framework of a collaboration between the Cerfacs-CNRS laboratory "CECI" (Climate, Environment, Couplings and Uncertainties) and the "National Laboratory for Hydraulics ans Environment" (LNHE) of EDF R&D. The thesis was supervised by Olivier THUAL (Cerfacs) and Cédric GOEURY (LNHE) Read more

Scientific mediation on the theme “Climate: let’s talk about it” during the Fête de la Science in Toulouse

31 October 2022

As part of the Fête de la Science 2022, which this year focused on adaptation to climate change and the levers of action to limit it, the Université Fédérale Toulouse Midi-Pyrénées (UFTMiP) organized a four-day program on the theme "Climate: are we talking about it? Christophe CASSOU, Director of Research at CECI (Cerfacs / CNRS), participated on October 13 in the round table "Climate change: understanding to act" at the Paul Sabatier Campus. This is one of the many scientific mediation activities that Christophe carries out in the framework of his missions as a CNRS researcher (training for elected officials and journalists, intervention in schools, universities, companies, etc.). Christophe has published three books: "Météo et climat : ce n'est pas la même chose" (Paris, Le Pommier 2013) in young people's literature, "Parlons climat en 30 questions" (Paris, La documentation française, 2015) and an edition released this month of June 2022 Read more