Unlike time to solution, the ways of measuring energy to solution can vary across systems or depend on permissions not available to every user. Even in the cases where the user might have the necessary permissions, measuring energy to solution isn’t yet a common practice and many users don’t think to include it as a key performance indicator for their applications. However, if HPC is to deliver on its full potential to address grand challenges like our lighthouse cases, it must also be as environmentally sustainable as possible. A year and a half in, we reflect on our ongoing experience measuring energy to solution on European HPC systems and have published a best practice guide (also available on zenodo)with examples to help raise awareness and knowledge in the HPC user community. Whether you work on computational fluid dynamics (CFD) or not, we’re sure you’ll find useful information in our guide. We welcome you to give it a read and pass on your feedback to include in future iterations !
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