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2015年初,我一直在我可愛的MBP上運行Tensorflow,僅限CPU。 我決定與Bazel一起構建一個Tensorflow版本,以加快速度:SSE4.1,SSE4.2,AVX,AVX2和FMA。Tensorflow從源代碼建立不再更快的再培訓?
bazel build --copt=-march=native //tensorflow/tools/pip_package:build_pip_package
但是,使用新安裝再培訓Inception v3模型不會更快,它使用完全相同的時間量。 這很奇怪,因爲在訓練的啓動模型中進行推理時,速度提高了12%。培訓MNIST的例子要快30%。
那麼我們是否有可能在再培訓中獲得任何速度優勢?
我也做了一個巴澤爾建立一個像解釋here,同樣的結果。
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
感謝,
格特
完全連接MNIST或conv? – MaxB
這一個:https://github.com/tensorflow/tensorflow/blob/master/tensorflow/examples/tutorials/mnist/mnist_softmax.py – GMath