25–27 Sept 2024
Virtual Meeting
Europe/Berlin timezone

The Idefix code: Looking back at the development of an exascale code, from design to production on pre-exascale clusters

Speaker

Geoffroy Lesur (Grenoble Alpes University, CNRS, IPAG)

Description

Idefix is a versatile Godunov MHD finite volume code designed to run on accelerated supercomputers using the C++ Kokkos framework. In this keynote, I will discuss our motivations for creating a new code (in contrast to porting an existing one) and the path we followed. As the code is now public and is becoming more widely used, I will also illustrate the difficulties physicists encounter when using codes of this kind, and how to address them to maximise the transition of our communities to the new generation of accelerated machines.

Primary author

Geoffroy Lesur (Grenoble Alpes University, CNRS, IPAG)

Presentation materials

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