Author: Matt Taylor
Date: 20:31:10 12/02/02
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On December 02, 2002 at 22:46:25, Robert Hyatt wrote: >On December 02, 2002 at 20:07:15, Aaron Gordon wrote: > >>I'm actually hoping Hyperthreading takes off. What I've seen of it so far hasn't >>been too impressive though. Perhaps applications need to be recompiled to better >>support it. Anyway, if it's able to take off most likely much more applications >>will start having SMP support. When this happens there will be all the more >>reason for AMD to introduce the dual-cored Sledgehammer systems. One can only >>hope. :) > > >Eugene also reported that running two instances of the tablebase compression >code >on a single hyper-threaded cpu runs almost exactly twice as fast. _that_ is >impressive performance... Interesting. I mentioned in another post that the P4 could potentially execute almost 2 times faster due to the fact that it has the ability to execute 5 ALU ops/cycle while the trace cache can supply at most 3 ops/cycle. It also has a slight advantage over Athlon in that the L1 data cache is 1 cycle faster (2 instead of 3) and would handle the extra strain of another virtual processor much better. I wish Itanium were affordable. I think that architecture would -kill- IA-32. I think it has something like 4 KB of register file for applications alone. Athlon64 looks promising, though. They've got 16 general registers now to reduce the memory contention. At least it will be affordable... Is the algorithm in Crafty at all suitable for running in a distributed system? (I would be merrily amused if a small collection of PCs could outperform the ~1 billion moves/sec that Deep Blue is capable of evaluating.)
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