Performance of Supercomputers Based on Angara Interconnect and Novel AMD CPUs/GPUs
A low-latency high bandwidth interconnect that makes a unified system from a collection of nodes is a heart of any modern su- percomputer. At the moment, Infiniband is the main commercially avail- able type of interconnect without any other real competition world-wide. Proprietary interconnects are known to stand behind effcient supercomputer systems. Since 2016, the supercomputer centre of JIHT RAS deploys systems based on the Angara interconnect developed in Moscow by JSC NICEVT. In this paper, we present the performance analysis for two recently upgraded supercomputers in JIHT RAS that are based on two types of Angara interconnect and modern AMD Epyc CPUs and AMD Instinct MI50 GPUs. The general properties of Angara intercon- nects are described and compared with Infiniband FDR. The details of HPL benchmark runs on both systems are analysed.