tensorflow - GPU tensorflow 安装问题

Question

我是 Ubuntu 的新用户，我花了一个多星期的时间尝试安装 gpu tensorflow。我尝试按照网站和博客中的教程进行操作。但是每当我在 python 控制台中导入 tensorflow 时。它总是显示:

import tensorflow
I tensorflow/stream_executor/dso_loader.cc:128] successfully opened CUDA library libcublas.so.8.0 locally
I tensorflow/stream_executor/dso_loader.cc:128] successfully opened CUDA library libcudnn.so.5.1.5 locally
I tensorflow/stream_executor/dso_loader.cc:128] successfully opened CUDA library libcufft.so.8.0 locally
I tensorflow/stream_executor/dso_loader.cc:119] Couldn't open CUDA   library libcuda.so.1. LD_LIBRARY_PATH:   :/usr/local/cuda/lib64:/usr/local/cuda/extras/CUPTI/lib64
I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:165] hostname: HanGuo
I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:189] libcuda reported version is: Not found: was unable to find libcuda.so DSO loaded into this program
I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:193] kernel reported version is: Permission denied: could not open driver version path for reading: /proc/driver/nvidia/version
I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:1091]  LD_LIBRARY_PATH: :/usr/local/cuda/lib64:/usr/local/cuda/extras/CUPTI/lib64
I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:1092] failed to find libcuda.so on this system: Failed precondition: could not dlopen DSO: libcuda.so.1; dlerror: libnvidia-fatbinaryloader.so.367.57: cannot open shared object file: No such file or directory
I tensorflow/stream_executor/dso_loader.cc:128] successfully opened CUDA library libcurand.so.8.0 locally

我试图在谷歌上搜索答案，但还没有真正的解决方案出现。有人可以帮我吗？

Answer 1

基于 $ ls /usr/local/cuda 的输出，你已经安装成功了。

现在，缺少的是 PATH 定义，以便 TensorFlow 可以找到它的位置。

1) 打开你的 .bashrc 文件:gedit ~/.bashrc
2) 将以下两行附加到文件末尾:

export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/cuda/lib64:/usr/local/cuda/extras/CUPTI/lib64:/usr/local/cuda/include"  
export CUDA_HOME=/usr/local/cuda

3) 保存并关闭文本文件后，您可以返回原始终端并键入以下命令以重新加载 .bashrc 文件:

source ~/.bashrc

虽然第三部分应该解决这个问题，但如果你想 100% 确定它会工作，请重新启动计算机。

现在，对于 TensorFlow，请记住将 CUDA 路径设置为 /usr/local/cuda和版本到8.0。