Author: Vincent Diepeveen
Date: 08:56:46 04/16/01
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On April 16, 2001 at 09:23:10, Mogens Larsen wrote: >On April 16, 2001 at 08:19:09, Vincent Diepeveen wrote: > >>It is not difficult to implement the form of parallellism as used by >>Rudolf. Invented by a frenchman who couldn't spell a word english and >>who wrote an impossible article for JICCA (did anyone proofread it at >>the time as i'm pretty sure they didn't get his parallel idea?). >> >>At the time when i read the article i was pathetically laughing about it >>actually as i also didn't get the idea of the frenchman. But it appears >>everyone who can make a chessprogram work under win2000 can also get >>within an afternoon his program parallel to work. Then some debugging >>and a day later it works cool. > >How many different types of SMP implementations are there and what are the >differences, if any? Well there are many different forms of SMP implementations for gameplaying search of course, but the easiest forms is the one that doesn't require you to control the search itself. The others give potentially a much better speedup but involve a lot more work. Personally i'm using probably the toughest form of parallellism, where processors find a job for itself in the search tree. >As a layman I would imagine that are different methods of making it work >depending on what you wish to accomplish, ranging from pure speed purposes to a >more complicated kind of threading resembling a n-brain system. My only intention when talking about parallellism at shared memory systems was to get the maximum speedup out of the processors, i'm pretty happy in how i managed to accomplish that using Robert Hyatt's Cray Blitz concept, as described in some ICCA journals. >>Yet i heart rumours that the K7 dual motherboard is going to be like >>at least us$ 1000, so that's not encouraging either when it comes out >>around oktober 2001 or so (if it gets out anyway as it is getting >>announced every month now), so there is not going to be much competition. > >I find it hard to believe that they're going to be that pricey. Maybe at first, >but the competition will bring the price down quite significantly. Is it clear >whether the current AMD processors are usable or if a new model is required with >less power consumption and maybe less heat emission. For some it is hard to believe that i pay phone by the minute, also local calls. But as a matter of fact there is only 1 phone company which owns the infrastructure in netherlands, so no one can compete with them with local phone rates... I'm not saying it is the same with the dual motherboard as i first gotta see it working well, but as far as i know only Tyan is working at such a motherboard, and where their other server motherboards aren't cheap, definitely $1000 for such an unique motherboard is no big deal when compared to the quad motherboards for Xeon processors where you also need to pay $4000 a processor or something. I'll buy it anyway :) >>Fact is that one sells very little programs because it is a parallel >>version, so hesitation to get parallel is understandable. Also nearly >>all home tests, i just have to point to SSDF for example, are done >>on single cpu computers. >> >>Whereas duals are nowadays very affordable when they carry intel logo, >>still 4 processors are a bit more expensive. Of course the entire design >>of quad motherboards is expensive, but each processor costs like $2000 >>or something, for a step in model that is. > >After my computer crash, I bought a Abit VP-6 dual board with one CPU :-). >Mainly because it would be easy to upgrade, ie. buying the second one and >overclocking later on. If the AMD dual board price is correct then I'm glad that >I didn't decide to wait and buy a cheap single cpu system as temporary >replacement. > >Regards, >Mogens
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