firefly3399开发板 ARM64 aarch64 等 安装新版tensorflow，解决版本不兼容问题

Chip Platform Rockchip
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本帖最后由 黄锦成 于 2018-7-22 00:37 编辑

由于目前的TensorFlow版本比较老旧导致很多算法和语法不通用编译报错，且没有几个贴详细说明如何在arm64上安装TensorFlow，借此为理由，写下人生第一个博客和firefly帖子。
—from中山
注意，安装的过程中会自动下载必须的包，需要连接好网络。脱机安装很可能失败。

1.安装必要的python环境
[b]

<font color="Black">sudo apt-get install libpython3.5-dev wget python3-pip python3-dev python3.5</font>

[/b]2.下载和安装别人编译好的arm（aarch64）版本tensorflow（因为自己编译需要配大量环境和占用很多资源，对于嵌入式板上编译就变得非常不可能，且现有的方法更为简便）

网上有别人编译好的TensorFlow，找到相应的文件。Releases · lhelontra/tensorflow-on-arm · GitHub
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#使用wget下载tensorflow-1.9.0-cp35-none-linux_aarch64.whl到当前目录
#命名规则：cp35对赢python3.5，aarch64表示架构信息
wget https://github.com/lhelontra/tensorflow-on-arm/releases/download/v1.9.0/tensorflow-1.9.0-cp35-none-linux_aarch64.whl

#必须制定使用python3.5安装tensorflow-1.9.0-cp35-none-linux_aarch64.whl
sudo python3.5 -m pip install tensorflow-1.9.0-cp35-none-linux_aarch64.whl

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到此为止，TensorFlow已经安装完成了

3.修改python默认为python3.5

为了因为C++调用python时，默认是调用python2.7，这导致很多python3.5的语法报错。所以需要更改python默认软连接

firefly@firefly:~/opencv-3-2$ python
Python 3.5.2 (default, Nov 23 2017, 16:37:01)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import tensorflow as tf
>>> hello = tf.constant('Hello world!')
>>> sess = tf.Session()
>>> print(sess.run(hello))
b'Hello world!'

测试调用一下：

firefly@firefly:~/opencv-3-2$ python
Python 3.5.2 (default, Nov 23 2017, 16:37:01)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import tensorflow as tf
>>> hello = tf.constant('Hello world!')
>>> sess = tf.Session()
>>> print(sess.run(hello))
b'Hello world!'

4.出现的错误

有时候可能会出现缺少库额问题 bstdc++.so.6: version `GLIBCXX_3.4.22’ not found (required by /usr/local/lib/python3.5/dist-packages/tensorflow/python/_pywrap_tensorflow_internal.so

参考: libstdc++.so.6: version `GLIBCXX3.4.22’ not found

  File "/usr/lib/python3.5/imp.py", line 242, in load_module
    return load_dynamic(name, filename, file)
  File "/usr/lib/python3.5/imp.py", line 342, in load_dynamic
    return _load(spec)
ImportError: /usr/lib/aarch64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.22' not found (required by /usr/local/lib/python3.5/dist-packages/tensorflow/python/_pywrap_tensorflow_internal.so)

Failed to load the native TensorFlow runtime.

See https://www.tensorflow.org/install/install_sources#common_installation_problems

for some common reasons and solutions.  Include the entire stack trace
above this error message when asking for help.
>>

sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade

参考文献：

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