• Complex systems and software engineering

Institute for Development and Resources in Intensive Scientific Computing (IDRIS)

Research unit


IDRIS is a centre of excellence in intensive numerical computing and the processing of large amounts of scientific data, serving all disciplines of science. It is the CNRS national centre for high-performance computing and numerical simulation. On behalf of civil society GENCI (Grand équipement national de calcul intensif), it provides about a thousand researchers and engineers from the scientific community in all its disciplines with some of the most powerful intensive computing resources available, as well as the services and expertise associated with them.


  • Mr Pierre-François LAVALLEE

Innovation themes

Map and access

Rue John Von Neumann
91403 ORSAY

Our research areas


Operating system:
- installation
- server administration

- servicing
- oversight

Support, advice and training:
- intensive computing
- code parallelization paradigms (MPI, OpenMP, hybrid programming)
- GPU accelerator programming

Applications sectors

  • Biotechnology
  • Health / wellness
  • Aeronautics / Aerospace

Total number of employees

Total number of employees : 35

Equipment(s) open to collaboration

Description of the calculators: http://www.idris.fr/info/presentation.html
Calculators :
- Turing: IBM Blue Gene/Q (98304 compute cores, 96 Tio memory, 1.258 Pflops)
- Ada : IBM x3750 (10624 compute cores, 46 Tio memory, 230 Tflops)
Archive server :
- Ergon : IBM + Oracle SL8500 solution (2 Pio local disk space, 10 Pio available space on tapes)


Our results

Valuation offer

Expertise in intensive computing, parallelism, processing of large masses of scientific data.
Training offer :
- scientific programming languages
- Parallelization paradigms (MPI, OpenMP, hybrid programming)
- GPU accelerator programming
- debugging parallel applications
- PATC (PRACE Advanced Training Centre https://www.training.prace-ri.eu)

Projects examples

- PRACE (the Partnership for Advanced Computing in Europe) www.prace-ri.eu- EOSC-Pilot (the European Open Science Cloud for Research Pilot Project) eoscpilot.eu- Centres européens d'excellence en calcul de haute performance :
- EoCoE (Energy oriented Centre of Excellence) www.eocoe.eu
- E-CAM (an e-infrastructure for Software, Training and Consulting in Simulation and Modeling) www.e-cam2020.eu
- Projet ANR Convergence (Convergence facing Big Data era and Exascale challenges for Climate Sciences) convergence.ipsl.fr

Industrial and scientific relations

Scientific collaborations

Ecole CentraleSupélec, ENS Paris-Saclay, E-RHIS (European Research Infrastructure for Heritage Science), Institut français de bioinformatique, Maison de la simulation d'Orsay, etc.
300 projects and 1000 users per year in all scientific themes :
- setting
- fluid mechanics, combustion, turbulence
- biology and health
- astrophysics and geophysics
- theoretical and plasma physics
- quantum chemistry and molecular modelling
- material physics
- new applications and cross-functional applications of HPC

Private collaborations

- within the framework of projects and training, IDRIS collaborates with several large industrial groups and SMEs


Establishments of affiliation