NERSCPowering Scientific Discovery Since 1974



NERSC's newest supercomputer, named Cori, is a Cray XC40. Named for American biochemist Gerty Cori, the first American woman to win a Nobel Prize and the first woman to be so honored with the prize in Physiology or Medicine, Cori ranked as the 5th most powerful supercomputer in the world on the November 2016 list of Top 500 supercomputers in the world.   Cori is a unique among supercomputers of its size with two different kinds of nodes, 2,388 Intel Xeon "Haswell" processor nodes 9,688 Intel Xeon Phi "Knight's Landing" nodes. Cori also features a 1.8 PB Cray Data Warp Burst Buffer with I/O operating at a world's-best 1.7 TB/sec.

NERSC-8 Procurement

Historical page with from the NERSC-8 (Cori) procurement including benchmarks and links to procurement documents. Read More »

Programming models

Parallel programming models at NERSC Since the transition from vector to distributed memory (MPP) supercomputer architectures, the majority of HPC applications deployed on NERSC resources have evolved to use MPI as their sole means of expressing parallelism. As single processor core compute nodes on MPP architectures gave way to multicore processors, applying the same abstraction (processes passing messages) to each available core remained an attractive alternative - no code changes were… Read More »

File Storage and I/O

The Cori system has 3 different file systems which provide different levels of disk storage, I/O performance and file permanence. Find information on I/O optimization, disk quotas and purging. Read More »