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Question about analyzing threading efficiency


Hi, I've been recently profiling PyTorch code using AVX instructions on my 16 core CPU. I'm feeling weird about the results. And I don't know one metric's meaning. Let me share my google drive link to show you my result.

If 'H/W Context' is meaning physical core, is the 'VTune Result 6' image file saying that only 9 cores are working after 16000s? It's quite weird and I don't know why it happened. This kind of phenomenon happens when I increases training epoch in my python codes. (It means, increases iterating number of loop. The image files numbered 1~5 are for code with epochs 5, 15, 25, 50, 50. I tried the code of 50 epochs twice)

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