Section: Partnerships and Cooperations

National Initiatives

Inria Project Lab

C2S@Exa (Computer and Computational Sciences at Exascale)

Participants : Olivier Aumage [STORM project-team, Inria Bordeaux - Sud-Ouest] , Philippe Helluy [TONUS project-team, Inria Nancy - Grand-Est] , Luc Giraud [HIEPACS project-team, Inria Bordeaux - Sud-Ouest] , Stéphane Lanteri [Coordinator of the project] , Jean-François Méhaut [CORSE project-team, Inria Grenoble - Rhône-Alpes] , Christian Perez [AVALON project-team, Inria Grenoble - Rhône-Alpes] .

Since January 2013, the team is coordinating the C2S@Exa http://www-sop.inria.fr/c2s_at_exa Inria Project Lab (IPL). This national initiative aims at 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. At the current state of the art in technologies and methodologies, a multidisciplinary approach is required to overcome the challenges raised by the development of highly scalable numerical simulation software that can exploit computing platforms offering several hundreds of thousands of cores. Hence, the main objective of C2S@Exa is the establishment of a continuum of expertise in the computer science and numerical mathematics domains, by gathering researchers from Inria project-teams whose research and development activities are tightly linked to high performance computing issues in these domains. More precisely, this collaborative effort involves computer scientists that are experts of programming models, environments and tools for harnessing massively parallel systems, algorithmists that propose algorithms and contribute to generic libraries and core solvers in order to take benefit from all the parallelism levels with the main goal of optimal scaling on very large numbers of computing entities and, numerical mathematicians that are studying numerical schemes and scalable solvers for systems of partial differential equations in view of the simulation of very large-scale problems.

ANR project


Participants : Emmanuel Agullo [HIEPACS project-team, Inria Bordeaux - Sud-Ouest] , Xavier Antoine [CORIDA project-team, Inria Nancy - Grand-Est] , Patrick Breuil [Nuclétudes, Les Ulis] , Thomas Frachon, Luc Giraud [HIEPACS project-team, Inria Bordeaux - Sud-Ouest] , Stéphane Lanteri, Ludovic Moya, Guillaume Sylvand [Airbus Group Innovations] .

  • Type: ANR ASTRID

  • Duration: May 2014 - April 2017

  • Coordinator: Inria

  • Partner: Airbus Group Innovations, Inria, Nuclétudes

  • Inria contact: Stéphane Lanteri

  • Abstract: the objective of the TECSER project is to develop an innovative high performance numerical methodology for frequency-domain electromagnetics with applications to RCS (Radar Cross Section) calculation of complicated structures. This numerical methodology combines a high order hybridized DG method for the discretization of the frequency-domain Maxwell in heterogeneous media with a BEM (Boundary Element Method) discretization of an integral representation of Maxwell's equations in order to obtain the most accurate treatment of boundary truncation in the case of theoretically unbounded propagation domain. Beside, scalable hybrid iterative/direct domain decomposition based algorithms are used for the solution of the resulting algebraic system of equations.