我想为keras / tensorflow提供gpu支持,这就是我安装tensorflow-gpu的原因.
所以我通过pip安装了tensorflow-gpu:
pip install –upgrade tensorflow-gpu
这导致了这个:
from keras import backend as K
K.tensorflow_backend._get_available_gpus()
> []
然后我发现this stackoverflow answer声明我应该在安装tensorflow-gpu后卸载tensorflow.这导致了这个:
Using TensorFlow backend.
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
<ipython-input-1-3d00d838479b> in <module>()
----> 1 from keras import backend as K
2 K.tensorflow_backend._get_available_gpus()
/raid/ntzioras/VirtualEnvironments/DeepLearning/lib/python3.4/site-packages/keras/__init__.py in <module>()
1 from __future__ import absolute_import
2
----> 3 from . import utils
4 from . import activations
5 from . import applications
/raid/ntzioras/VirtualEnvironments/DeepLearning/lib/python3.4/site-packages/keras/utils/__init__.py in <module>()
4 from . import data_utils
5 from . import io_utils
----> 6 from . import conv_utils
7
8 # Globally-importable utils.
/raid/ntzioras/VirtualEnvironments/DeepLearning/lib/python3.4/site-packages/keras/utils/conv_utils.py in <module>()
7 from six.moves import range
8 import numpy as np
----> 9 from .. import backend as K
10
11
/raid/ntzioras/VirtualEnvironments/DeepLearning/lib/python3.4/site-packages/keras/backend/__init__.py in <module>()
82 elif _BACKEND == 'tensorflow':
83 sys.stderr.write('Using TensorFlow backend.\n')
---> 84 from .tensorflow_backend import *
85 else:
86 raise ValueError('Unknown backend: ' + str(_BACKEND))
/raid/ntzioras/VirtualEnvironments/DeepLearning/lib/python3.4/site-packages/keras/backend/tensorflow_backend.py in <module>()
4
5 import tensorflow as tf
----> 6 from tensorflow.python.training import moving_averages
7 from tensorflow.python.ops import tensor_array_ops
8 from tensorflow.python.ops import control_flow_ops
ImportError: No module named 'tensorflow.python'
重新安装tensorflow
pip install –upgrade tensorflow –no-cache
使用上面的代码再次引导gpus的空数组.
任何想法如何解决这一问题?
最佳答案 这个解决方案对我有用:
卸载TensorFlow的CPU和GPU版本,然后仅安装GPU版本的TensorFlow.
pip uninstall tensorflow
pip uninstall tensorflow-gpu
pip install tensorflow-gpu