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Edison is a Cray XC30, with a peak performance of 2.57 petaflops/sec, 134,064 compute cores, 357 terabytes of memory, and 7.56 petabytes of disk.

NOTE: Edison is scheduled to be retired on May 13, 2019.

Updates and Status

Find information on timeline, recent announcements and known issues Read More »


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

Getting Started on Edison

How to get running on Edison for first-time users. Read More »


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

Running jobs

Learn how to submit a job to the queues and execute the job launch command, monitor your job in the queue and job exit status. Also find information on OpenMP and MPI runtime settings. Read More »

Edison File Storage and I/O

The Edison system has 4 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 »

Debugging and Profiling

Learn about performance analysis tools CrayPat and IPM, debugging tools DDT and Totalview, and more. Read More »

Performance and Optimizations

Learn useful optimization tips and view performance and benchmarking results on Edison. Read More »