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NERSC Cabinet Cori Zoom


Cori is NERSC's newest supercomputer (NERSC-8), a Cray XC40. It is 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 is a unique supercomputer, comprised of 1,630 Intel Xeon "Haswell" processor nodes, 9,300 Intel Xeon Phi "Knight's Landing" nodes, and a 1.5 PB Cray Data Warp Burst Buffer.

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 chroniclel order). Read More »

Cori Phase II Schedule

Before Cori can be released to users, it must be delivered, integrated with Phase I, and accepted. This page is the resource for the Cori upgrade and installation schedule. For the current status of Cori, please see the Cori Updates and Status page. Impact on NERSC Users While NERSC is making every effort to minimize inconvenience to users, there are some unavoidable downtimes of Cori Phase I for the upgrade of its operating system and integration with Cori Phase II.  Cori Phase II Preparation… Read More »


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

Getting Started

Before you can use or access Cori, you must have an active NERSC account and valid password. If you don't, see Accounts and Allocations. Cori should be used in the following way: Log in to a "login" node, bring your files and data over, compile your code, and create a batch submission script. Then submit that script so that your application runs on the Cori "compute" nodes. Pay attention to the various file systems available and the choices in programming environments, and make sure you use… 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 »

Burst Buffer

The burst buffer is a layer of non-volatile storage which sits between memory and the file system on the Cori system. The burst buffer will serve to accelerate application I/O. The Burst Buffer is in early user mode and will be opened up to all users at a future date. Read More »

Cori Phase II

Cori Phase 2 will be arriving in the summer of 2016! Cori Phase 2 will feature the Intel Knights Landing manycore architecture. 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 »