Author: Keith Ian Price
Date: 09:33:24 04/20/05
IBM recently came out with their Power-5 module: http://static.userland.com/weblogsCom/images/wallyswisdomwarehouseweblogscom/8XPower5MCM.jpg This module has 4 dual-core multi-theaded Power PCs similar to the ones used in the Mac G5. That makes for a total of 16 virtual cores, and IBM has a system that ties 8 of these modules together with a 4GB/s bus for a total of 128 virtual cores. The other four chips in the module are 4x36MB L3 cache. Since Crafty already gets about 1500 kns on a fast processor, and the mult-threading on a core offers about a 15-20% speedup, Crafty would likely exceed 100,000 kns on a full system, especially if the hash tables could be kept in the L3 cache. First, would it be possible to run a 128-thread version of Crafty? If so, do you suppose that IBM might be interested in affording you the use of one of these, as a Professor of Computer Science, to have a match against the self-proclaimed successor to Deep Blue? I imagine they would get some good publicity having an off-the-shelf IBM computer beat the specially designed chess computer in a match. What do you think?
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