IDEFIX: A versatile performance-portable Godunov code for astrophysical flows

Open Access

Table 4

Single node performance and energy efficiency comparison on a variety of architectures.

Cluster/processor	Single node performances (10⁶ cell s⁻¹)	Energy efficiency (10¹⁰ cell kWh⁻¹)
Irene Rome (CPU)	41.3	2.7
Jean-Zay CSL (CPU)	25.0	3.0
Jean-Zay V100 (GPU)	484	11.3
Adastra Mi250 (GPU)	1240	18.2

Notes. The test problem is the 3D Orszag-Tang vortex test, with a resolution of 32³ in each subdomain on CPUs and 256³ in each subdomain on GPUs.

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