Sun Constellation System

Sun Constellation System is an open petascale computing environment introduced by Sun Microsystems in 2007.

Main hardware components

 * Sun Blade 6048 Modular System
 * Sun Blade X6275
 * Sun Blade X6270
 * Sun Blade 6000 System
 * Sun Datacenter Switch 3456
 * Sun Fire X4540
 * Sun Cooling Doors (5200,5600)

Software stack

 * OpenSolaris or Linux
 * Sun Grid Engine
 * Sun Studio Compiler Suite
 * Fortress (programming language)
 * Sun HPC ClusterTools (based on Open MPI)
 * Sun Ops Center

Services

 * Sun Datacenter Express Services

Production systems
Ranger at the Texas Advanced Computing Center (TACC) was the largest production Constellation system. Ranger had 62,976 processor cores in 3,936 nodes and a peak performance of 580 TFlops. Ranger was the 7th most powerful TOP500 supercomputer in the world at the time of its introduction. After 5 years of service at TACC, it was dismantled and shipped to South Africa, Tanzania, and Botswana to help foster HPC development in Africa.

A number of smaller Constellation systems are deployed at other supercomputer centers, including the University of Oslo.