Re: [eclipse-clp-users] Multicore/CPU systems and Eclipse CLP

From: Christian Wirth <tyrion_at_...215...>
Date: Tue, 22 Jun 2010 18:49:42 +0200
to clarify it a bit:
I compile the prolog source code first, then i load another file via the 
given prolog program and this triggers some complex calculations (should 
not be done multiple times) to create new rules. So i would need to copy 
all rules after those calculations.

Am 22.06.2010 18:41, schrieb Christian Wirth:
> Thx,
>
> i will need to try it out, but seems not too complicated .. except how 
> do i copy the ruleset ? The ruleset is compiled from a file and some 
> existing rules, so i don't know every predicate. Is there a way to 
> just copy all ?
>
> cheers Christian
>
> Am 22.06.2010 18:28, schrieb Wit Jakuczun:
>> Dear Christian,
>>    we have done something similar on 32 processors. You must use 
>> RemoteEclipse or OutOfProcessEclipse and not EmbeddedEclipse.. Check 
>> this part of documentation: 
>> http://www.eclipse-clp.org/doc/embedding/embroot048.html for more 
>> details.
>> All you have to do is to send ruleset to each prolog engine 
>> separately. After this you can call them asynchronously.
>> Best regards
>> -- 
>> [ Wit Jakuczun http://www.linkedin.com/in/jakuczunwit  ]
>>
>>
>> 2010/6/22 Christian Wirth <tyrion@...215... 
>> <mailto:tyrion@...215...>>
>>
>>     My program creates a ruleset on startup .. ofc that can only be
>>     done singlecore, but after that i repeatetly call a predicate
>>     that does not modify the ruleset and it is not dependant on the
>>     parallel calls. So i just want to run every predicate call on a
>>     new core, without any interaction with the other calls.
>>     But how can i setup the parallel solving ?
>>
>>     Am 22.06.2010 18:12, schrieb Wit Jakuczun:
>>>     2010/6/22 Christian Wirth <tyrion@...215...
>>>     <mailto:tyrion@...215...>>
>>>
>>>         Hi,
>>>
>>>         i'm running eclipse CLP on Dualcore and a Quad CPU machine,
>>>         and would
>>>         like to use those additional cores/cpus. I'm running eclipse
>>>         from Java
>>>         and it's already setup to create multiple parallel threads,
>>>         but eclipse
>>>         seems to use only one core anyway ?
>>>         What do i need to do ?
>>>
>>>     I what way would you like to use more than one cpu? If you are
>>>     asking whether ECLiPSe can solve clp problems using many cpus
>>>     then the answer is no (according to my knowledge). But you could
>>>     try to do it by yourself by decomposing your problem and solving
>>>     each subproblem with separate eclipse solver.
>>>     Best regards
>>>     -- 
>>>     [ Wit Jakuczun http://www.linkedin.com/in/jakuczunwit  ]
>>
>>
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>
>
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Received on Tue Jun 22 2010 - 16:49:43 CEST

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