Hopper - Cray XE6 12-core 2.1 GHz
At number five is Hopper, a Cray XE6 system at DOE's National Energy Research Scientific Computing (NERSC) Center in California. Hopper just broke the petaflop/s barrier with 1.05 petaflop/s, making it the second most powerful system in the U.S. and only the third U.S. machine to achive petaflop/s performance.
System Name: Hopper
City: Berkeley
State: California
Country: United States
Site: DOE/SC/LBNL/NERSC
System Family: Cray XE
System Model: Cray XE6
Computer: Cray XE6 12-core 2.1 GHz
Vendor: Cray Inc.
Application area: Research
Installation Year: 2010
Operating System: Linux
Interconnect: Custom
Processor: AMD x86_64 Opteron 12 Core 2100 MHz (8.4 GFlops)