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Code Coupling and User Interface

Applications

CERFACS has a strong expertise in the development and use of generic code coupling libraries.The couplers developed at CERFACS are daily used to address complex scientific problems such as:

Chemistry-Atmosphere coupling with OASIS

Chemistry-Atmosphere coupling with OASIS

  • earth system modelisation for climate science
  • multiphysics coupling (heat transfer, fluid/structure interaction …)
  • multi-composant coupling
  • data assimilation
  • multidisciplinary optimization

All these applications rely on the integration of different solvers that interact at different levels between each others following coupling algorithms.

OASIS and OpenPALM:

OASIS and OpenPALM couplers are used to make modular and evolutive coupled applications in a user friendly way. The domains of applications go from many types of research fields to industrial uses.

Any type of code can be coupled with different languages (Fortran, C, C++, Python, Perl, R, …) and type of parallelization (from mono-processor to massively parallel). Coupling of commercial solvers is performed thanks to TCP/IP protocols through user defined functions.

Both coupling libraries provide interpolation functionalities when quantities to exchanges are discretized on different meshes. In OASIS, the interpolation is dedicated to geophysical applications while OpenPALM provide a more generic interpolation framework based on an unstructured mesh formalism thanks to the CWIPI library developed by ONERA.

Both OASIS and OpenPALM runs on high performance computers where computation times as well as parallel data exchanges are optimized in order to not penalize the speed up of massively parallel codes.

ESCAPADE project with OpenPALM

ESCAPADE project with OpenPALM

Associated with the Graphical User Interface generator OpenTea, OASIS and OpenPALM are daily used by Cerfacs and its partners involving academic laboratories as well as industrial companies. OASIS and OpenPALM are distributed under the OpenSource license LGPL.

About two training per year are proposed for Oasis and OpenPalm. OASIS and OpenPALM are still under development following users’ requests as well as optimizations and bug corrections. The funding of these actions rely on different collaborations through industrial, national or european projects.

NEWS

New online training session on LBM

Jean-François PARMENTIER |  10 September 2018

Our next online training session on LBM will take place in October. More information and registration on:    Read more


Sparse Days Meeting 2018 at Cerfacs, Toulouse

Brigitte Yzel |  12 June 2018

The annual Sparse Days meeting will be held at CERFACS in Toulouse on 27th and 28th September 2018.

Registration for the Sparse Days is free but we ask people who are coming to register as soon as possible although the deadline is August 26th. Please complete...

Read more

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