Author: Robert Hyatt
Date: 08:27:10 01/15/00
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On January 15, 2000 at 08:31:26, David Blackman wrote: >On January 15, 2000 at 01:20:28, Robert Hyatt wrote: > >>It is time for my next project. Today I finished the PO for a new beowulf >>cluster machine here. This machine will have 8 nodes, with each node being >>a quad xeon 550mhz machine. The nodes will be connected by a gigabit/sec >>switch. And no, it won't be crafty's permanent machine. But look for it to >>do some interesting matches on ICC later this year when I get to the >>distributed search. :) > >Bob Hyatt does distributed processing? That's something not many people >expected. I figured everyone knew I did this. I had a distributed version of Cray Blitz. > >Distributed processing is something not many programs have used well, or even at >all. I think there was something called Sun Phoenix back around 1985? Was >Shaeffer involved? > There was sun phoenix. And cilkchess. And Waycool. And several others. All running on "cubes" using message passing protocols. It is doable. DB ran on a message-passing cluster (SP) don't forget. >And Deep Blue, but that thing had such an enormous amount of speed it is hard to >say if the distributed processing was used well or not. I think Hsu published >that he got 35x speedup with 100 cpus. I suspect that's not as easy to do as it >sounds, but it also is not as good as you'd like. > >The few other examples haven't exactly set the world on fire. Bob Hyatt has been >one of the people pointing out that efficient use of distributed processing is >difficult or impossible. > >Bob was one of the first and still one of the most successful with small scale >SMP (but maybe not for much longer ...). And Cray Blitz was probably the only >program to make good use of a vector unit. Maybe after a bit of tuning and >experimenting, we will see an efficient distributed processing chess program. I hope so. 32 xeon processors offer a lot. 64 later this year will offer more. :)
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