Models
| Model | # of CPUs | Memory | I/O | Chassis | Introduced | Discontinued |
|---|---|---|---|---|---|---|
| Origin 2100 | 2 to 8 | Up to 16 GB | 12 XIO | Deskside | ? | 31 May 2002 |
| Origin 2200 | 2 to 8 | Up to 16 GB | 12 XIO | Deskside | ? | 31 May 2002 |
| Origin 2400 | 8 to 32 | Up to 64 GB | 96 XIO | 1 to 4 racks | ? | 31 May 2002 |
| Origin 2800 | 32 to 128 (256 and 512 unsupported) | Up to 256 GB (512 GB unsupported) | 384 XIO | 1 to 9 racks (with Meta Router) | ? | 31 May 2002 |
Note: The highest CPU count that the SGI marketed the Origin 2000/2800 was 128 CPUs. Three Origin 2000 models were made that were capable of using 512 CPUs and 512 GB of memory but these were never marketed as a system to customers. One of the 512-CPU Origin 2000 series was installed at SGI's facility in Eagan, Minnesota for test purposes and the other two were sold to NASA Ames Research Center in California for specialized scientific computing. The 512-CPU Origin 2800s cost roughly $40 million each and the delivery of the Origin 3000 systems, scalable up to 512 or 1024 CPUs at a lower price point per performance, made the 512-CPU Origin 2800 obsolete.
Several customers also bought 256-CPU Origin 2000 series systems, although they were never marketed as a product by SGI either.
The largest installation of SGI Origin 2000 series was ASCI (Accelerated Strategic Computing Initiative, now ASCP) Blue Mountain at Los Alamos National Labs. It included 48 Origin 2000 series 128-CPU systems all connected via HIPPI for a total of 6144 processors. At the time it was tested, it placed second on the TOP500 list of fastest computers in the world. Note that this test was completed with only 40 nodes of 128 CPUs each and recorded a sustained 1.6 teraflops. With all nodes connected, it was able to sustain 2.1 teraflops and peak of over 2.5 teraflops.
Los Alamos also had another 12 Origin 128-CPU system (for a total of 1536 CPUs) as part of the same testing.
Read more about this topic: SGI Origin 2000
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