Installing keras makes tensorflow can't find GPU

I have used keras + tensorflow-gpu in my old computer, it’s very ok. (I forget the tensorflow version)

I install keras with tensorflow-gpu (version 1.0.1) in my new computer, and before install keras, tensorflow can find my GPU. But after install keras, tensorflow only can find CPU. (use $ pip3 install keras)

I use these code to check GPU:

from tensorflow.python.client import device_lib
device_lib.list_local_devices() 

$ nvidia-smi

And I tried to install keras from source ($ python setup.py install), it would have some error and install fail.

...
Installed /home/thisray/keras-test/lib/python3.5/site-packages/Keras-2.0.0-py3.5.egg
Processing dependencies for Keras==2.0.0
Searching for tensorflow
Reading https://pypi.python.org/simple/tensorflow/
No local packages or working download links found for tensorflow
error: Could not find suitable distribution for Requirement.parse('tensorflow')

Is this problem about version ?

thanks

[thisray]

Thanks for your explanation. After: install tensorflow -> install keras -> uninstall tensorflow -> install tensorflow and it works! Thanks a lot!

[ghost]

Yeah, currently when you install Keras using pip or pip3 it blows off existing TF and installs the default, non-GPU version. It’d be great if there was a flag to not touch existing TF.

The workaround is to uninstall TF after installing Keras, and then installing the GPU version using pip or pip3 depending on your preferred python version. Not very elegant, but you gotta do what you gotta do.