Abstract
Summary form only given. The supercomputer “Fugaku” is an exascale system, which is operated since March 2021 in R-CCS, Japan. Fugaku is an ultra-scale “general-purpose” manycore-based system with 158,976 nodes, 7.6M cores in total. We developed a new manycore processor, A64FX, designed for Fugaku, well as a system including interconnect and a storage subsystem with the industry partner, Fujitsu. A64FX supports Arm instruction sets with Scalable Vector Extension (SVE) SIMD instruction sets and is equipped with HBM2 memory. Since 2014 we have been carrying out a national project named as the FLAGSHIP 2020 Project to develop “Fugaku” system with a variety of scientific applications with computational science researchers. The “co-design” of the system and applications was a key to making it power efficient and high performance. In this talk, the system and performance of Fugaku will be presented as well as an overview of the FLAGSHIP 2020 project.
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