43e Forum : Les workflows pour le calcul scientifique / Workflows for scientific computing

19 mars 2019 au CNRS, rue Michel-Ange, Paris.

Programme préliminaire

HPC has always advanced science by being at the cutting edge of computer technologies. This last decade numerical computing has been growing fast in many directions: higher fidelity, multi-physics models; deluge of observational data from sensors; data analysis and post-processing; AI-based models; remote visualization, etc. Combining all these aspects results in highly complex application (software) architectures.

As a consequence scientific discovery relies more and more on implementing workflows that bring together heterogeneous components. These components deal with experimental and observational data management and processing, as well as with computing and data analytics combined with (meta-) data logistics. The workflows may include dynamicity and closed-loops where rare or unpredictable events trigger a flow of activities. They include a large ensemble of heterogeneous resources. Uncertainty in data content adds uncertainty into workflow reaction / evolution. In this vision, high performance computing has to transition from short to long running persistency of services; from static to dynamic allocation of resources, data, and tasks; from homogeneous to heterogeneous software stack and services.

The deployment of such complex workflow not only questions the HPC infrastructure (hardware and software) access and use modes, but also the networks infrastructure, and will require new approaches to security.

This 43th Forum will shed light on workflows for scientific computing.


9h00 Introduction

9h15-9h45 Why choose this topic? (François Bodin, Irisa, Univ Rennes)

9h45-10h30 Bruno Raffin, INRIA


11h00-11h45 TBD

11h-11h45 Micah Beck, NSF

12h15-12h45 Idris

12h45-13h00 Europe Update (Jean-Philippe Nominé, CEA)


14h15-14h30 Genci update (Stéphane Requena, Genci)

14h30-15h00 Anne gazaix et François Gallard IRT Saint exupery

15h-15h30 CMIP6 workflows management at IPSL and CNRM/CERFACS : producing with XIOS and making sense of it on national analysis Platform (Sébastien Denvil, IPSL)


Sébastien Denvil is a research engineer at IPSL (CNRS) with more than 15 years experience in climate simulations, High Performance Computing and e-science infrastructure. He is the head of the IPSL Climate Modeling Centre Data platform and one of the technical chair of the CMIP like simulations platform. He is chairing the CDNOT (CMIP Data Node Operation Team), is a member of the WGCM Infrastructure Panel (WIP), is a member of the ENES (European Network of Earth System modeling) data task force and is one of the three European representatives in the ESGF Executive Committee. He is and has been PI in several international projects (ESGF, IS-ENES2, ES-DOC, IS-ENES, ETAFOR, G8 ExArch).


16h00-16h30 TBD

16h30-17h00 Denis Caromel ActiveEon