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Good news for me: "Starting from 1.6 release, our prebuilt binaries will use AVX instructions. This may break TF on older CPUs."

I just this morning gave up trying to compile Tensorflow from sources with AVX. I'm sure I could do it given the time but after 5 minutes it was clearly a more complicated project. Shame it may break older CPUs though, I wonder what the challenge is in releasing two versions?

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Here is how I build architecture optimized TensorFlow 1.4 binaries for specific AWS instance types:

https://gist.github.com/daniel-j-h/b410dd21d4949a54c83d0c386...

The build script needs slight adaptions between major TensorFlow releases; otherwise works great for me so far.

During boot time you can then figure out the instance architecture you are and fetch the appropriate wheel. Hope it helps.

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