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Subject: Re: How are dual cores going to affect chess?

Author: Vincent Diepeveen

Date: 11:08:54 01/29/05

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On January 29, 2005 at 11:00:24, gerold daniels wrote:

>On January 29, 2005 at 10:33:04, Vincent Diepeveen wrote:
>
>>On January 29, 2005 at 09:48:07, gerold daniels wrote:
>>
>>>On January 29, 2005 at 09:09:30, Vincent Diepeveen wrote:
>>>
>>>>On January 29, 2005 at 08:31:27, Jason Kent wrote:
>>>>
>>>>>On January 29, 2005 at 08:28:11, Vincent Diepeveen wrote:
>>>>>
>>>>>>On January 29, 2005 at 08:20:07, Jason Kent wrote:
>>>>>>
>>>>>>Your machine will look like a dual machine. The OS doesn't know better than that
>>>>>>it is 2 processor machine.
>>>>>>
>>>>>>>It looks like by the third quarter of this year, both intel and amd will be
>>>>>>>selling dual cores.  Are they basically handled as two processors under task
>>>>>>>manager, and software?  I'm guessing this is going mean that to get the most out
>>>>>>>of your cpu, you will have to buy all the Deep versions.  Maybe that is why SMK
>>>>>>>decided to seperate the programs?
>>>>>>>Jason
>>>>>>
>>>>>>I won't comment on SMK, nor on chessbase, but it's obvious that if the intel CEO
>>>>>>says that intel will produce ONLY dual core cpu's within a year and nearly
>>>>>>nothing else, that only parallel software will work for you.
>>>>>>
>>>>>>Paying extra for something that just uses a normal single cpu, is a very bad
>>>>>>thing. It means basically you have normally spoken a crippled software program,
>>>>>>as > 90% of all cpu's will be dual core.
>>>>>>
>>>>>>Vincent
>>>>>
>>>>>It sounds like there will be plenty of programming needed to fix all of the
>>>>>current software to make it SMP compatible.  Since I will be coming out of
>>>>>school in another year or so, hopefully it will be easy to find work. :D
>>>>
>>>>Majority of applications that can eat any amount of cpu cycles are already
>>>>parallel.
>>>>
>>>>Please note that search is one of the hardest to parallellize problems, because
>>>>nowadays important is that your parallel search maintains the same branching
>>>>factor like a single cpu search does. For example in databases parallel search
>>>>is pretty trivial to make.
>>>
>>>good morning are the dual core better than the single processor and what about
>>>the new cell chip.
>>
>>For chess the dual cores will be 1.8 - 2.0 better in scaling. For diep simply
>>2.0 scaling nearly.
>>
>>The cell processor, not much is known about it.
>>
>>See what i wrote in aceshardware about that.
>>
>>The only info i could find of someone speculating what it would be is that there
>>will be different versions. One cheapo version which is put in cheapo game
>>consoles and won't be able to impress much.
>>
>>The highend version i saw someone predict 4.6ghz for it in 0.065 which i frankly
>>doubt they will achieve that so easily with it.
>>
>>Basically if i understand well it is a special processor which has 1 main core
>>with 8 vector helpers.
>>
>>Depending upon how much those are vectorized and how many integer instruction
>>units those helpers will have, it will be a fast or slow processor for chess.
>>
>>Then secondly real important, perhaps most important, will be the communication
>>speed between the helper cores.
>>
>>On paper it should get 250 gflop, that's however at 4.6Ghz which is a speed i
>>seriously doubt they will get for vector processors.
>>
>>Let's just sit and wait for it.
>>
>>Knowing IBM it won't be a serious processor for us chessprogrammers to consider,
>>just like power5 is not serious for us either.
>>
>>>gerold.
>
>thanks for the reply vincent i read that the cell chip would have a much larger
>cache.
>
>gerold.

Please realize that a power5 cardridge costs $100k.

That's just a cpu cardridge, it has inside 8 cpu's or something.



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