In October, 2002, OSC engineers installed the 300-CPU HP Workstation Itanium 2 Linux zx6000 Cluster. OSC selected HP’s computing cluster for its blend of high performance, flexibility and low cost. The HP cluster used Myricom's Myrinet high-speed interconnect and ran the Red Hat Linux Advanced Workstation, a 64-bit Linux operating system.
OSC engineers in March, 2002, installed a 256-CPU AMD Linux Cluster. The 32-bit Parallel Processing (MPP) system featured one gigabyte of distributed memory, 256 1.4 & 1.53 gigahertz AMD Athlon processors and a Myrinet and Fast Ethernet interconnect.
In October, 2001, OSC engineers installed four SunFire 6800 midframe servers, with a total of 72 UltraSPARC III processors.
In August, 2001, OSC engineers installed a 146-CPU SGI 750 Itanium Linux Cluster, described by SGI as one of the fastest in the world.
In October, 1999, OSC engineers installed a Cray SV1 system with 16 custom vector processors at 300MHz and 16GB of memory. The SV1 used complementary metal–oxide–semiconductor (CMOS) processors, which lowered the cost of the system, and allowed the computer to be air-cooled.
In April, 1999, OSC installed a 10-CPU IA32 Linux Cluster as a “Beowulf Cluster,” a system built of commodity off-the-shelf (COTS) components dedicated for parallel use and running an open source operating system and tool set.
Early in 1999, Pinky, a small cluster of five dual-processor Pentium II systems connected with Myrinet, was made available to OSC users on a limited basis. Pinky was named for a good-natured but feebleminded lab mouse in the animated television series Animaniacs.
OSC engineers were busy again in September of 1998, installing an SGI Origin 2000 system at the Center. The SGI Origin 2000, code named Lego, came from a family of mid-range and high-end servers developed and manufactured by Silicon Graphics Inc. (SGI) to succeed the SGI Challenge and POWER Challenge.