Abstract

NERSC [1] is the production HPC facility for the U.S. DOE Office of Science. The center supports over 6000 users with more than 600 unique applications in a wide variety of science domains. HPC systems deployed at NERSC must support a diverse workload and broad user base but also need to satisfy ... Show moreNERSC [1] is the production HPC facility for the U.S. DOE Office of Science. The center supports over 6000 users with more than 600 unique applications in a wide variety of science domains. HPC systems deployed at NERSC must support a diverse workload and broad user base but also need to satisfy an increasing demand for cycles from this community as spelled out in the requirements studies of the various science domains. [2] In addition to meeting the science demand, NERSC is transitioning to an energy efficient data center and requires high performing, energy efficient architectures. This transition has recently begun at NERSC with the installation of the Cori system, a Cray XC40 system powered by 9300+ Intel Xeon-Phi "Knights Landing" (KNL) processors added to an existing Cori phase 1 system powered by 1500+ Xeon (Haswell) processors. Show less