来自源的Tensorflow构建不会更快进行再培训？

我在2015年初的可爱MBP上运行Tensorflow，仅限CPU . 我决定使用Bazel构建一个Tensorflow版本，以加快速度：SSE4.1，SSE4.2，AVX，AVX2和FMA .

bazel build --copt=-march=native //tensorflow/tools/pip_package:build_pip_package

但是使用新安装重新启动Inception v3模型并不是更快，它使用的时间完全相同 . 这很奇怪，因为在使用经过训练的初始模型进行推理时，我的速度提高了12％ . 训练MNIST示例的速度提高了30％ .

那么我们可能没有获得再培训的速度优势吗？

我也为保留器做了一个Bazel构建，如解释here，同样的结果 .

我的./configure：

Please specify the location of python. [Default is /Users/Gert/Envs/t4/bin/python]: Users/Gert/Envs/t4/bin/python3
Invalid python path. Users/Gert/Envs/t4/bin/python3 cannot be found
Please specify the location of python. [Default is /Users/Gert/Envs/t4/bin/python]: ls
Invalid python path. ls cannot be found
Please specify the location of python. [Default is /Users/Gert/Envs/t4/bin/python]: lslss
Invalid python path. lslss cannot be found
Please specify the location of python. [Default is /Users/Gert/Envs/t4/bin/python]: /rt/Envs/t4/bin/python3^C
(t4) Gerts-MacBook-Pro:tensorflow root#
(t4) Gerts-MacBook-Pro:tensorflow root# ./configure
Please specify the location of python. [Default is /Users/Gert/Envs/t4/bin/python]: /Users/Gert/Envs/t4/bin/python3
Please specify optimization flags to use during compilation [Default is -march=native]:
Do you wish to use jemalloc as the malloc implementation? (Linux only) [Y/n] n
jemalloc disabled on Linux
Do you wish to build TensorFlow with Google Cloud Platform support? [y/N] n
No Google Cloud Platform support will be enabled for TensorFlow
Do you wish to build TensorFlow with Hadoop File System support? [y/N] n
No Hadoop File System support will be enabled for TensorFlow
Do you wish to build TensorFlow with the XLA just-in-time compiler (experimental)? [y/N] n
No XLA JIT support will be enabled for TensorFlow
Found possible Python library paths:
  /Users/Gert/Envs/t4/lib/python3.4/site-packages
Please input the desired Python library path to use.  Default is [/Users/Gert/Envs/t4/lib/python3.4/site-packages]

Using python library path: /Users/Gert/Envs/t4/lib/python3.4/site-packages
Do you wish to build TensorFlow with OpenCL support? [y/N] n
No OpenCL support will be enabled for TensorFlow
Do you wish to build TensorFlow with CUDA support? [y/N] n
No CUDA support will be enabled for TensorFlow
Configuration finished

谢谢，

格特