Built-in Multithreading on multiple CPUs

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

Answer 1

[Sean de Wolski]

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...

[Florian]

So does Matlab allow for multithreading over more than one CPU?