Author: Slater Wold
Date: 12:29:55 02/15/04
Go up one level in this thread
On February 15, 2004 at 15:22:10, Bob Durrett wrote: >On February 15, 2004 at 15:20:01, Slater Wold wrote: > >>On February 15, 2004 at 15:17:28, Bob Durrett wrote: >> >>>On February 15, 2004 at 15:14:16, Slater Wold wrote: >>> >>>>On February 15, 2004 at 15:09:57, Bob Durrett wrote: >>>> >>>>>On February 15, 2004 at 15:06:26, Slater Wold wrote: >>>>> >>>>>>On February 15, 2004 at 14:34:08, Bob Durrett wrote: >>>>>> >>>>>>> >>>>>>>I envision a standard equipment rack with 32 or 64 Hydra cards, a power supply, >>>>>>>possibly a conventional computer for orchestration, and fans. >>>>>> >>>>>>Do you think Hydra was running on a single computer, with a single card? >>>>> >>>>>Actually, that is what I thought. What was actually done? >>>> >>>>4 Dual Xeon 2.4Ghz PCs & 8 FPGA cards (2 per PC) >>>> >>>>The PCs are probably $5k a piece. The cards, about $500 a piece. >>>> >>>>$25k worth of hardware, just to draw Shredder 8 ($50 program) on a PC. >>> >>>You forgot to add in the cost of the computer Shredder was running on. >> >>I said 'on a PC'!! >> >>>>Still think Hydra is the 'engine of the future'? :) >>> >>>Well, the idea that four Hydra cards were used is encouraging because that >>>suggests that using multiple Hydra cards is a workable idea. I do not >>>understand, however, why two separate PCs were required. Any ideas about that? >> >>They used 4 seperate PCs. 2 cards, per PC. >> >>I am sure it has something to do with PCI bus saturation. > >Now you're "going technical" on me! : ) Surely you know what a PCI slot is. Now imagine you put a card into a PCI slot. Imagine that card sends back sooo much chess data, PVs, depths, etc., etc. that eventually, it overwhelms the computer. That's PCI bus staturation, in a very tiny nutshell.
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