Co-Design and System for the Supercomputer “Fugaku”

The supercomputer “Fugaku” is an exascale manycore-based parallel system developed as a Japanese national flagship in the FLAGSHIP 2020 Project. While was ranked first for several benchmarks such TOP500, HPCG, HPL-AI, and Graph500 2020, major design concept application-first by co-design power efficiency high performance. We have designed original manycore processor based on Armv8 instruction sets with scalable vector extension, A64FX processor, Fujitsu, our industry partner. consists of 158,976 nodes 7.6 million cores total theoretical peak 537 Peta Floating-point Operations Per Second double-precision floating points, connected Tofu-D interconnect. performance computing (HPC)-oriented enables extremely good memory-intensive workloads thanks to HBM2 memory breakthrough efficiency. In this article, we present pragmatic practice effort followed overview “Fugaku.”