Adrian Cockcroft, Stephen Perrenod, and Shahin Khan get together in a free-flowing coffee-shop style discussion of future system architecture in supercomputing. The motivation for this episode started during the SC22 conference, where several advances seemed to point to significant changes in system design and optimization. This led to Adrian’s article “SC22: CXL3.0, the Future of HPC Interconnects and Frontier vs. Fugaku” and a deeper dive in his paper: “Supercomputing Predictions: Custom CPUs, CXL3.0, and Petalith Architectures”. Similar threads were discussed over at the @HPCpodcast. At the same time, the well-received and well-discussed paper “Myths and Legends in High-Performance Computing” by Satoshi Matsuoka, Jens Domke, Mohamed Wahib, Aleksandr Drozd, and Torsten Hoefler, instigated a valuable discussion of 12 topics, from major technology areas to specific capabilities in future HPC systems, to application performance. All of that is discussed here flavored with some historical accounts.
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