SSE (SIMD instructions on BuR CPU ATOM E3940)

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1

I would like to accelerate some algorithms by using SIMD which should be available for the ATOM E3940. I also found the corresponding C header files in Automation Studio. But the option SSE is disabled. Has anyone experience with this?

2

I don’t have experience on this particular topic, but I do know certain bios features need to be disabled for deterministic real-time predictability. It’s possible these are disabled due to this reasoning as well.

3

Thanks for the answer. Is there any help page or documentation on that topic?

4

This was from the APC3100 Software section Minimum versions

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5

Hi @Mirjam_Abegglen have you found solution for your issue, can you update us?

6

Hi @kovarj,
yes I decided not to use SIMD because the cost of more time needed for each context switch (copy of extra 128-bit CPU register) will be higher than the benefit for my specific usecase. I implemented the FFT algorithm now without SIMD.

Thanks for your support!

7

understand, thanks for update. I marked your answer as your solution.