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.15 NERSC 1870 Cori option 7d big final


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 8th most powerful supercomputer in the world on the November 2017 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.

Updates and Status

Known issues and status update Read More »

Cori Timeline

This page records a brief timeline of significant events and user environment changes on Cori (in reverse chronological order). Read More »

cori panorama 1997x723

Cori Configuration

Details concerning Cori's hardware and software. Read More »

Getting Started

How to get started using NERSC's Cori supercomputer. Read More »


Find information on how to compile your application, use MPI and OpenMP optimally, achieve effective vectorization, and use Cray's scientific libraries. Read More »

Running Jobs

Learn how to submit interactive and batch jobs using native SLURM on Cori compute nodes with example batch scripts. and how to monitor your job in the queue and job exit status. Also find information on OpenMP and MPI runtime settings as well as general application tuning options. Read More »

Cori File Systems

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 »

Burst Buffer

The Burst Buffer is a layer of non-volatile storage which sits between memory and the file system on the Cori system, within the high-speed network. The Burst Buffer will serve to accelerate application I/O. Read More »

Application Porting and Performance

We expect many applications will need to make code modifications in order to run efficiently on Cori's Knights Landing manycore architecture. To run well on Cori, your application will need to have good thread scalability, take advantage of vectorization opportunities, and manage multiple hierarchies of memory effectively. Read More »

NERSC-8 Procurement

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