Current Status: Retired
Hopper was retired on Dec 15, 2015. Login nodes and scratch file systems were available until noon Dec 22, 2015.
Hopper was NERSC's first petaflop system, a Cray XE6, with a peak performance of 1.28 Petaflops/sec, 153,216 compute cores, 212 Terabytes of memory, and 2 Petabytes of disk. Hopper placed number 5 on the November 2010 Top500 Supercomputer list.