Performance Evaluation of a Hybrid Computer Cluster Built on IBM POWER8 Microprocessors

摘要

This paper is devoted to the performance evaluation of a hybrid computer cluster built on IBM POWER8 CPUs and NVIDIA Tesla P100 GPUs. The architecture of the computing system and software used are described. Results of experiments carried out using the STREAM, NPB, Crossroads/NERSC-9 DGEMM, and HPL packages are discussed. The efficiency of the simultaneous multithreading (SMT) technology supported by POWER8 processors, as well as the performance of some compilers, parallel programming and mathematical libraries, on this architecture is analyzed.