Professor Andrea Saltelli Seminar at CERFACS, December 3rd, 2018 Summary
4 December 2018
CERFACS was pleased to welcome Pr. A. Saltelli for a wide interest seminar an Uncertainty Quantification. Pr. Andrea Saltelli's main disciplinary focus is on sensitivity analysis. The main idea behind sensitivity analysis is to figure out how the uncertainty in the output of a model can be apportioned to different sources of uncertainty in its inputs. Pr. Saltelli has worked on various fields of application such as physical chemistry, environmental sciences, applied statistics, impact assessment and science for policy. At present he is adjunct professor at the Centre for the Study of the Sciences and the Humanities at University of Bergen. He is currently a visiting fellow at Open Evidence Research at the Universitat Oberta de Catalunya in Barcelona. The talk was entitled "Are the results from a particular model more sensitive to changes in the model and the methods used to estimate its parameters, or to changes in the data". It reviewed some principles of sensitivity analysis, good and bad practices, and some practitioners' insight on when to use what. The stream line for the talk is available here
CERFACS awarded two projects to explore and disseminate new technologies for sustainable programming for exascale
3 December 2018
CERFACS is now part of the Excellerat Center of Excellence () and the EPEEC project (). EPEEC aims ot bring european parallel programming technology to the exascale era. It consist of 10 leaders in research and applications from Europe. EXCELLERAT is a European Centre of Excellence for Engineering Applications. The Centre is an initiative of several European High Performance Computing Centres to team up to support several key engineering industries in Europe in dealing with complex applications using HPC technologies. It conducts research, provides leadership, guidance on good practice, and user support mechanisms . Its goal is to help Europe leverage scientific progress in HPC driven engineering and address current economic and societal challenges.
Cerfacs funded for the EoCoE-II European center of excellence
11 October 2018
The European center of excellence EoCoE-II brings together 20 partners from 7 European countries around exascale computing for energy-oriented numerical models. As a follow-up to the proof-of-principle phase of EoCoE (energy-oriented center of excellence), EoCoE-II will build on its unique, established role at the crossroads of HPC and renewable energy to accelerate the adoption of production, storage and distribution of clean electricity. Involved in 2 work packages, Cerfacs will conduct research around scalable multigrid solvers for the gyrokinetic fusion code GyselaX on the one hand, and surrogate models for uncertainty quantification and data assimilation with 2D hydrodynamics solvers on the other hand.
Cerfacs funded by the EU for more than 1 MEuros thanks to the IS-ENES3 and ESiWACE2 projects
4 October 2018
IS-ENES3 is the third phase of the distributed e-infrastructure of ENES (European Network for Earth System modelling), enabling the European climate modelling community to address the challenges of international intercomparison project CMIP6. IS-ENES3 will develop, document and deploy new and advanced models and tools, standards and services to deal with unprecedented data volumes and model complexity. The Centre of Excellence ESiWACE2 brings together 20 partners from 9 European countries and plans to further push Earth System Model technology towards execution on upcoming pre-exascale and exascale systems. These two projects will finance Cerfacs activities around code coupling, in particular the further development of the OASIS coupler, upstream technical developments for climate services (climate4impact portal) and for the Earth System Grid Federation (ESGF) ensuring the dissemination and analysis of model output and observational data.
New online training session on LBM
10 September 2018
Our next online training session on LBM will take place in October. More information and registration on:
New supercomputer opened at Cerfacs
16 May 2018
Since the beginning of May 2018, a new supercomputer named Kraken has been setup to reinforce Cerfacs' simulation capabilities. With a peak performance of 315 Tflop / s this new computer provided by Lenovo is now available to all of Cerfacs' researchers in addition to the Nemo computer. The Kraken cluster includes 119 compute nodes, each of them with two Intel Xeon Gold 6140 processors (18 cores skylake processor at 2.3 Ghz) and 96 GB DDR4 memory. This “compute partition” is completed by 3 post-processing nodes with 384 GB memory with a Nvidia Tesla M60 and one node with 768 GB memory used for large mesh generation. The interconnection network is a non-blocking Intel Omnipath Network.
Support activity on C3Sm interface system for combustion codes of CERFACS rated first by SAFRAN HELICOPTER ENGINES (SHE)
18 April 2018
Support activity on C3Sm, a software developed by CERFACS to use combustion LES codes has been rated first by an independent evaluation within SHE. This underlines the common work of SHE and CERFACS. C3SM was rated 70/70, far above the average value obtained by other tools used at SHE and especially well above commercial CFD codes.
The Combustion Institute Selection Committee has selected Dr Bénédicte Cuenot to receive the honorific title of Fellow of the Combustion Institute in 2018.
5 February 2018
Fellows of The Combustion Institute are members of the international combustion community recognized by their peers as distinguished for outstanding contributions to combustion, whether it be in research or in applications. Fellows are active participants in The Combustion Institute, as evidenced by the publishing of papers in CI affiliated journals, attendance at the International Symposia on Combustion, and/or attendance at CI Section meetings. See
Visit of Mrs Nadia Pellefigue
29 January 2018
Cerfacs was very honored to welcome Mrs Nadia Pellefigue, Vice-President of the Occitanie region in charge of Economic Development, Research, Innovation and Higher Education.
One of the 18 laureates of “make our planet great again” program will join Cerfacs
22 December 2017
Benjamin Sanderson (from the National Center of Atmospheric Research, Boulder, USA) has been selected as one of the 18 laureates of the priority research program « Make our planet great again » ( ), launched under the auspices of Frédérique Vidal, Minister of Higher Education, Research and Innovation, and of Louis Schweitzer, General Commissioner for Investment. He will soon join the CECI (Cerfacs/CNRS UMR5318) laboratory to work on his successful « Risks and Uncertainties under Climate Change » (RISSCi) project for the next five years.
Ph.D. Students’ Day : Thursday March 15th, 2018
21 December 2017
Ph.D. Students' Day (JDD 2018) Thursday March 15th, 2018 9 am - 6 pm Cerfacs, Conference room JCA The 2018 edition of the PhD Students' Day will take place on March 15, 2018, in the JCA conference room at Cerfacs. The participation of 1st and 2nd year PhD students is mandatory except in exceptional cases. The day will include oral presentations of the 1st and 2nd year students, as well as a poster session with a prize for the best poster given at the end of the day by our jury. Agenda : Registration deadline: January 5, 2018 Abstracts (title, abstract up to 10 lines and image): February 2, 2018 Posters: March 2, 2018 Slides: March 7, 2018 Participation in the event is free of charge. However, for logistical reasons, registration is mandatory for PhD students by filling in the form below. External persons wishing to attend this day can register directly by email to brigitte.yzel@cerfacs.fr PROGRAM and ABSTRACTS Organising Committee: Svenya CHRIPKO Victor ROUSSEAU Brigitte YZEL
