MATLAB R2023a and its Parallel Computing Toolbox cannot work well with AMD Threadripper?

Thomas

2023 12 16

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Hi,

I am considering buying a new AMD Threadripper workstation for myself to do my research work. Much of it will involve MATLAB and its Parallel Computing Toolbox.

I read with concern the following post:

https://forum.level1techs.com/t/poor-matlab-performance-on-threadripper-5995wx-system-win10/203913/5

It seems that MATLAB R2023a and its Parallel Computing Toolbox cannot work properly (obtain 80%-100% CPU usage) on AMD Threadripper systems (Win 10 in the post?) with a large number of cores? Is this a known common problem with AMD Threadripper CPUs? Can MATLAB staff (and/or someone who has experience using MATLAB with AMD Threadripper) confirm and advise? I do not look forward to buying a new very expensive workstation only to find that it cannot do what I bought it to do...

I understand in the past there was this issue with the MATLAB MKL not working properly with AMD CPUs, but I thought that was resolved in MATLAB 2020a and MATLAB 2023 even has AOCL support. This seems to be a different problem? In the above post in the level1tech forum, the original-poster/thread-creater wrote that he encountered his problem regardless of whether he was using MKL or AOCL in MATLAB R2023a.