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accelerate on M-series macbook #94

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@arthuradriaens-code

Hello everyone,

I installed ngsolve using pip in a venv on my M4 macbook air and it works, however I see it is not multithreading when using task manager. I digged a bit into this and found that it is probably something to do with numpy using the macos native accelerate framework instead of openblas but ngsolve somehow not? Not entirely sure but probably related to that. Anyways I was wondering if someone knows a straight-forward workaround to get mutlithreading working on macos (as it now takes quite a while to solve a simulation).

Thanks in advance

Arthur

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