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keras教程-n-CUDA无法找到cudnn的错误解决

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文章目录
  1. 1. 问题和解决方法

本文适用于如下环境:

  • ubuntu16
  • python3.6
  • jupyter notebook
  • tensorflow 1.x
  • keras 2.x

作者信息:

  • 邮箱: xxxspy[at]126.com
  • QQ: 675495787
  • 转载请注明来自 mlln.cn

今天在使用keras的时候发现一个错误, 主要的错误是Unknown: Fail to find the dnn implementation, 具体看traceback如下:

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 Unknown: Fail to find the dnn implementation.
Traceback (most recent call last):
File "train.py", line 33, in <module>
num_epochs=20)
File "/home/bnu/venvs/deeplearning3.6/lib/python3.6/site-packages/textgenrnn/textgenrnn.py", line 320, in train_from_file
texts, context_labels=context_labels, **kwargs)
File "/home/bnu/venvs/deeplearning3.6/lib/python3.6/site-packages/textgenrnn/textgenrnn.py", line 291, in train_new_model
**kwargs)
File "/home/bnu/venvs/deeplearning3.6/lib/python3.6/site-packages/textgenrnn/textgenrnn.py", line 221, in train_on_texts
validation_steps=val_steps
File "/home/bnu/venvs/deeplearning3.6/lib/python3.6/site-packages/keras/legacy/interfaces.py", line 91, in wrapper
return func(*args, **kwargs)
File "/home/bnu/venvs/deeplearning3.6/lib/python3.6/site-packages/keras/engine/training.py", line 1415, in fit_generator
initial_epoch=initial_epoch)
File "/home/bnu/venvs/deeplearning3.6/lib/python3.6/site-packages/keras/engine/training_generator.py", line 213, in fit_generator
class_weight=class_weight)
File "/home/bnu/venvs/deeplearning3.6/lib/python3.6/site-packages/keras/engine/training.py", line 1215, in train_on_batch
outputs = self.train_function(ins)
File "/home/bnu/venvs/deeplearning3.6/lib/python3.6/site-packages/keras/backend/tensorflow_backend.py", line 2666, in __call__
return self._call(inputs)
File "/home/bnu/venvs/deeplearning3.6/lib/python3.6/site-packages/keras/backend/tensorflow_backend.py", line 2636, in _call
fetched = self._callable_fn(*array_vals)
File "/home/bnu/venvs/deeplearning3.6/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1454, in __call__
self._session._session, self._handle, args, status, None)
File "/home/bnu/venvs/deeplearning3.6/lib/python3.6/site-packages/tensorflow/python/framework/errors_impl.py", line 519, in __exit__
c_api.TF_GetCode(self.status.status))
tensorflow.python.framework.errors_impl.UnknownError: Fail to find the dnn implementation.
[[Node: rnn_1_2/CudnnRNN = CudnnRNN[T=DT_FLOAT, _class=["loc:@training/RMSprop/gradients/rnn_1_2/CudnnRNN_grad/CudnnRNNBackprop"], direction="unidirectional", dropout=0, input_mode="linear_input", is_training=true, rnn_mode="lstm", seed=87654321, seed2=0, _device="/job:localhost/replica:0/task:0/device:GPU:0"](rnn_1_2/transpose, rnn_1_2/ExpandDims_1, rnn_1_2/ExpandDims_1, rnn_1_2/concat)]]
[[Node: loss_2/mul/_241 = _Recv[client_terminated=false, recv_device="/job:localhost/replica:0/task:0/device:CPU:0", send_device="/job:localhost/replica:0/task:0/device:GPU:0", send_device_incarnation=1, tensor_name="edge_2251_loss_2/mul", tensor_type=DT_FLOAT, _device="/job:localhost/replica:0/task:0/device:CPU:0"]()]]

问题和解决方法

经过各种搜索以后, 我知道这是因为cuDNN安装错误或者根本没有安装导致的, 所以我们就重新安装一遍cuDNN即可, 下面就是我的解决步骤:

  • 下载cudnn压缩包

为了避免你从官网下载(速度慢/还需要注册/填写问卷) ,我把要下载的cudnn放在了百度网盘:

下载链接:https://pan.baidu.com/s/1Wz9G9KtzmrBuXv0fLDo2GQ

提取码:zvp4

  • 重命名文件

主要是加上文件后缀.tgz, 那么现在这个文件为cudnn-9.0-linux-x64-v7.3.1.20.solitairetheme8.tgz

  • 文件放到某个文件夹

后文用cudnn_dir来表示这个文件夹路径, cd到这个文件夹

  • 解压:

``$tar -xzvf cudnn-9.0-linux-x64-v7.3.1.20.solitairetheme8.tgz`

你会看到在当前文件夹下多了一个文件夹cuda

  • 复制文件到/usr/local/cuda中, 命令我都给你写好了:
$` sudo cp cuda/include/cudnn.h /usr/local/cuda/include
`$ sudo cp cuda/lib64/libcudnn* /usr/local/cuda/lib64
$`


> **注意**
> 本文由jupyter notebook转换而来, 您可以在这里下载[notebook](keras教程-n-CUDA无法找到cudnn的错误解决.ipynb)
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