Cerfacs Enter the world of high performance ...

From 22 April 2015 to 24 April 2015

Uncertainty quantification: theory and application to algorithms, CFD and geosciences

nasri |  

Deadline for registration: 15 days before the starting date of each training
Duration : 3 days / (21 hours)


This training course is given by three specialists of uncertainty quantification: Dr Pietro Marco Congedo – researcher at INRIA Bordeaux Sud-Ouest, Dr Vivien Mallet – researcher at INRIA Paris Rocquencourt, and Dr Pierre Sagaut – professor at Laboratory M2P2, Aix-Marseille University. The first half of the course focuses on theoretical aspects: uncertainties definition, Monte Carlo methods, projection methods, approximation methods and calibration data methods. The second half of the course is dedicated to application of uncertainty quantification to the fields of algorithm, CFD and geosciences.

Target participants

This training session is for engineers, physicists, computer scientists
and numerical analysts who wish to learn about uncertainty quantification.



Scientific contacts :

– Dr Pietro Marco Congedo, INRIA Bordeaux Sud-Ouest
– Dr Vivien Mallet, INRIA Paris Rocquencourt
– Pr Pierre Sagaut, Laboratory M2P2 – Aix-Marseille University


  • Trainees/PhDs/PostDocs : 100 €
  • CERFACS shareholders/CNRS/INRIA : 300 €
  • Public : 600 €


(Everyday from 9h00 to 17h30)

Day1  Theoretical aspects (Pr P. Sagaut)

  • Introduction and definition: errors, uncertainty, risk, stochastic modelling, sources of uncertainty
  • Monte Carlo method and variants Projection methods: Galerkin methods and collocation, generalized polynomial chaos, implantation, etc.
  • Methods of approximation: kriging, co-kriging, prediction error, POD
  • Calibration data: Bayesian inference

Day 2 morning: Application to algorithms (Dr P.M. Congedo)

  • Innovative algorithm for quantifying uncertainties in CFD applications
  • Non-probabilistic approach and epistemic uncertainty
  • Optimisation under uncertainties

Day 2 afternoon: Application to geosciences/

  • Ensemble evaluation, Data assimilation (Dr V. Mallet)
  • The multiple models
  • Ensemble evaluation
  • A posteriori uncertainty estimate for data assimilation




Two CERFACS proposals accepted in PRACE 14th call

superadmin |  4 April 2017

Two CERFACS proposals have been accepted at the last PRACE call. The two studies will be performed with the AVBP solver and will address two very different topics: "Large Eddy Simulation of the Deflagration to Detonation Transition » (in collaboration with TOTAL) will focus on explosions in...Read more

Articles of scientific mediation in the online journal “The Conversation”

thual |  31 March 2017

Among the missions of the researchers and engineers of Cerfacs is the dissemination of scientific results at all levels, from specialized scientific journals to media intended for the general public. In this spirit, Cerfacs has chosen the online journal "The Conversation" to publish several...Read more