Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2 FMA

最新推荐文章于 2020-12-30 16:19:50 发布
原创 最新推荐文章于 2020-12-30 16:19:50 发布 · 1.7k 阅读 · 0 ·
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#mac #tensorflow #warning #cpu #AVX2 FMA

本文解析了在Mac上运行TensorFlow时遇到的警告信息，该警告表明TensorFlow未使用CPU上的AVX2和FMA指令集。文章解释了这并非错误，而是编译时的默认设置，旨在确保兼容性。通过设置环境变量TF_CPP_MIN_LOG_LEVEL=2可以忽略此警告。

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就，记录自己报的那些错吧啊啊啊啊

每一个问题都有 一丢丢收获

mac 运行tensorflow，报错：

2019-04-24 15:07:06.421041: I tensorflow/core/platform/cpu_feature_guard.cc:141] Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2 FMA

一开始我以为是因为我装的python3.7的问题，然后卸了换3.6，还是这样，其实这不是错误。Tensorflow运行得很好。

这是一个警告，说Tensorflow没有利用CPU上的一些高级指令，因为它的二进制文件被编译为不使用这些指令（所以它可以在较旧的CPU上运行）。

当然，如果可以在打开AVX2 FMA指令的情况下编译TensorFlow，它可能会“运行得更快”

忽略它，在运行之前设置环境变量。

windows：

$ set TF_CPP_MIN_LOG_LEVEL=2

Linux的/ MacOS：

$ export TF_CPP_MIN_LOG_LEVEL=2

参考：https://stackoverflow.com/questions/51681727/tensorflow-on-macos-your-cpu-supports-instructions-that-this-tensorflow-binary

警告：Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2 FMA
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