Section: Partnerships and Cooperations

National Initiatives

ANR-MN: H2MNO4 project

Participants : Thomas Dufaud, Jocelyne Erhel, Grégoire Lecourt, Aurélien Le Gentil, Lionel Lenôtre, Géraldine Pichot.

Contract with ANR, program Modèles Numériques

Duration: four years from November 2012.

Title: Original Optimized Object Oriented Numerical Model for Heterogeneous Hydrogeology.

Coordination: Jocelyne Erhel and Géraldine Pichot, with Fabienne Cuyollaa.

Partners: Geosciences Rennes, University of Poitiers, University of Lyon 1, Andra, Itasca.

Web page: http://www.irisa.fr/sage/

Abstract: The project H2MNO4 will develop numerical models for reactive transport in heterogeneous media. It defines six mathematical and computational challenges and three applications for environmental problems with societal impact (see 6.4.1 , 6.4.3 , 5.1 ).

Inria Large Wingspan intiative: HEMERA project

Participants : Jocelyne Erhel, Géraldine Pichot.

Title: Hemera

Duration: from September 2010.

Coordination: C. Perez, GRAAL team.

Partners: 22 Inria teams.

Webpage: http://www.grid5000.fr/mediawiki/index.php/Hemera

Abstract: Hemera is an Inria Large Wingspan project, started in 2010, that aims at demonstrating ambitious up-scaling techniques for large scale distributed computing by carrying out several dimensioning experiments on the Grid’5000 infrastructure, at animating the scientific community around Grid’5000 and at enlarging the Grid’5000 community by helping newcomers to make use of Grid’5000.

The team Sage is the leader of the Scientific Challenge Hydro: Multi-parametric intensive stochastic simulations for hydrogeology. The objective is to run multiparametric large scale simulations (see 6.4.1 , 6.5 ).

Inria Large Wingspan intiative: C2S@EXA project

Participants : Édouard Canot, Thomas Dufaud, Jocelyne Erhel, Géraldine Pichot, Souhila Sabit.

Title: C2S@EXA

Duration: from January 2012.

Coordination: S. Lanteri, Nachos team.

Partners: Inria teams working on HPC; external partners: ANDRA and CEA.

Webpage: http://www-sop.inria.fr/c2s_at_exa/

Abstract: The C2S@Exa Inria large-scale initiative is concerned with the development of numerical modeling methodologies that fully exploit the processing capabilities of modern massively parallel architectures in the context of a number of selected applications related to important scientific and technological challenges for the quality and the security of life in our society (see 6.1.2 , 6.1.3 , 6.1.5 , 6.4.5 ). The team participated in the first workshop France-Brazil on HPC (Nice, July 2012).

Inria Technological development actions: H2OGuilde project

Participants : Jocelyne Erhel, Aurélien Le Gentil, Géraldine Pichot.

Title: H2OGuilde

Duration: October 2011 - October 2013.

Coordination: J. Erhel and G. Pichot.

Partner: Charles Deltel, SED Inria Rennes

Webpage: http://www.irisa.fr/sage/

Abstract: The project H2OGuilde aims at developing an interface for the platform H2OLab (see 5.1 ) and at designing software libraries with a large academic diffusion (see 6.4.1 , 6.5 , 8.1.1 ).

Inria Collaborative Research Action: GEOFRAC project

Participants : Thomas Dufaud, Jocelyne Erhel, Géraldine Pichot.

Title: GEOFRAC

Duration: June 2011-June 2013.

Coordinator: J. Erhel and G. Pichot.

Partners: Pomdapi and Gamma3 Inria teams, Géosciences Rennes.

Webpage: http://www.irisa.fr/sage/geofrac/

Abstract: In the last twenty years, the interest of geological fractured rocks has been renewed by a variety of energy-related applications, such as carbonate oil reservoirs, geothermic energy production, geological storage of high level nuclear waste, geological sequestration of CO2. Fractures are highly permeable pathways within a less pervious but more porous medium generally called matrix. The discrete modeling of fractures faces at least two challenging numerical issues. First, the fracture and matrix phases have very different hydraulic properties. Permeability is at least two orders of magnitude larger in the fractures than in the matrix. Second, the fracture structure complexity yield intricate geometrical configurations difficult to mesh. We propose to address these limitations by developing new numerical methods (see 6.5 , 5.1 ).

GENCI: project on advanced linear solvers

Participants : Édouard Canot, Jocelyne Erhel, Grégoire Lecourt, Aurélien Le Gentil, Géraldine Pichot.

Title: Scalabilité de méthodes numériques pour l’hydrogéologie

Duration: 2012

Coordination: J. Erhel and G. Pichot.

Webpage: http://www.genci.fr/

Abstract: To run large scale simulations, we defined a project, based on the software H2OLab, AGMRES, GRT3D and MUESLI (see 5.1 , 5.9 , 5.6 , 5.11 ). We obtained and used computing time on machines located at Idris supercomputing center (see 6.1.2 , 6.1.3 , 6.4.1 , 6.5 ).

GNR MOMAS: project on reactive transport

Participants : Jocelyne Erhel, Souhila Sabit.

Webpage: http://momas.univ-lyon1.fr/

The working group MOMAS includes many partners from CNRS, Inria, universities, CEA, ANDRA, EDF and BRGM. It covers many subjects related to mathematical modeling and numerical simulations for nuclear waste disposal problems.