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Forum: Multithreading
Re: None from 8 cores to 80 cores with no speed increase (matthew)
Date: 12 Aug, 2015
From: Andrea Dotti <Andrea Dotti>

Hello, please note that MT can give you benefits only as long as you have enough physical cores available on your machine. With Intel's hyper-threading technology you can still get some benefits as long as the number of threads does not exceed the number of logical cores. After that performances will stop increasing. See: https://twiki.cern.ch/twiki/bin/view/Geant4/MultiThreadingTaskForce#CPU_and_Memory_Performances

Regards, Andrea

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1 Question: Re: from 8 cores to 80 cores with no speed increase   (matthew - 13 Aug, 2015)
(_ Warning: Re: from 8 cores to 80 cores with no speed increase   (Andrea Dotti - 13 Aug, 2015)
(_ None: Re: from 8 cores to 80 cores with no speed increase   (matthew - 13 Aug, 2015)
(_ Idea: Re: from 8 cores to 80 cores with no speed increase   (Andrea Dotti - 13 Aug, 2015)
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