2nd Workshop on Readiness of HPC Extreme-Scaling Applications

This workshop provides a forum to discuss common challenges, ideas, solutions, and opportunities from the point of view of HPC applications developers preparing for exa-scale. The first edition was held last year at ISC [https://pop-coe.eu/news/events/readiness-of-hpc-extreme-scale-applications], and we will continue and expand discussion in this year's workshop.

The Top500 list of June 2022 had the first supercomputer with ExaFLOPS HPC performance, after many years of international community pursuit of this goal, and several more systems have followed or are expected within the next year. One is the European supercomputer JUPITER, hosted by Jülich Supercomputing Centre and half funded by EuroHPC JU, guaranteeing access primarily for projects led by institutions in Europe. Now is therefore the time for HPC application software to demonstrate its readiness for extreme-scale computer systems composed from large assemblies of a heterogeneous variety of CPU processors and GPU accelerators.

Europe has been preparing HPC applications for this challenge for the last nine years through its Centres of Excellence (CoEs). Since 2015 they aim at greatly extending the scalability of a large variety of HPC codes and improving their execution efficiency and performance. [https://www.hpccoe.eu/eu-hpc-centres-of-excellence2/]

Performance Optimisation and Productivity (POP) CoE [https://www.pop-coe.eu], where both workshop organisers are task leaders, is dedicated to providing free performance assessments to HPC application developers and in particular supports the domain-specific CoEs (as well as the wider HPC community of academic and industry). Insights gathered by POP showed that, although they serve different science fields, many of the challenges that these applications face are common and also the solutions adopted.

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Organizers:

• Marta Garcia-Gasulla
• Brian J. N. Wylie