Built-in Multithreading on multiple CPUs

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Florian
Florian 2014-9-30
评论： Florian 2014-9-30
I am running code that maxes out CPU usages about 80% of the time over 4 cores. Because I am not using the parrell computing toolbox, I assume this is due to the use of multithreading. If I understand correctly some linear algebra function support multithreading and I am using those quite a lot.
My question is if Matlab's built-in multithreading can take advantage of multiple CPUs in one system? Would performance on a two CPU quad core system improve? Or is their a limit to what can be achieved with multihreading.
Best, Florian

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回答（1 个）

Sean de Wolski
Sean de Wolski 2014-9-30
Some of the libraries that MATLAB uses such as Lapack, fftw and IPP have builtin multithreading.
As for a speed-up, your mileage will vary...

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