multiple cpu machines Re: rogues galleries

On Tuesday 28 November 2006 15:02, Richard wrote: How about a Maspar MP-1? IIRC, it was 16,384 4-bit processors in a single machine, and a frontend of either a VAXstation 3520 (which I have, unfortunately, I couldn't save the MP1), or later, a MIPS-based DECstation. Or, PASM-1. It was a massively parallel machine made out of 68000 and 68010 MVME boards, and some custom interconnect. (FWIW, I have most of the remains of it, but it was a custom/research machine). The largest number of 'real' processors in a machine (ie, SMP), goes to a NCR WorldMark (aka Voyager) 5100 that's in my friend's garage. two machines with 32 x PPro 200's and 4GB ram each in a single "cabinet". I've also got a Sun E6500 which I could put 24 x 400MHz USII's in. Not really the "fastest" machine, though. That belongs to the next one... I've also got a bunch of (too many) IBM 9076-N81 (SP Nighthawk high node), which each have 16 x 375MHz POWER3-II CPUs, 8-16GB ram (well, ok, so one node has 32GB ;), and a high-speed interconnect card that has a datarate of 1GB/sec (yes, 1GByte, it's a parallel transport, not a serial transport). 4 fit in a single rack, with a switch. If you're running an program using MPI libraries, one rack looks a lot like a 64-processor machine. (If you include the service processors on each node, the switch, and the rack's power supply, that's actually 70 processors. More if you include uC's and dedicated processors on things like the network cards and SCSI disks. :) Pat -- Purdue University Research Computing --- http://www.rcac.purdue.edu/ The Computer Refuge --- http://computer-refuge.org