Performance Evaluation of Scientific Applications on Intel Xeon Phi Knights Landing Clusters

摘要

Korea Institute of Science and Technology Information (KISTI) is building its 5th supercomputer based on Intel Xeon Phi Knights Landing (KNL) processors, and plans to provide an open service to computational scientists in the near future. We perform solid benchmark tests for several well-known open/commercial application softwares in a 16 node pilot system for a preliminary performance evaluation of KNL systems. Based on their results, we present detailed discussion with a focus on the performance gain that can be obtained with unique features in KNL processors. Performance of application software measured in our KNL pilot system is compared to that obtained in the current supercomputer based on traditional multicore processors, to claim the practical benefits of Intel onboard Many-Integrated- Core architectures for large-scale scientific computing.