When running tensorflow on ubuntu 16.04 libcuda.so.1 isn't being found. This file is part of the CUDA tools which I should have installed ; maybe just no the right place? I tried searching for the files via this command:

find / -type f -name "libcuda.so.1

And I get back a list of files (shortened list):

ind: ‘/etc/cups/ssl’: Permission denied
find: ‘/etc/polkit-1/localauthority’: Permission denied
find: ‘/etc/ssl/private’: Permission denied
find: ‘/tmp/systemd-private-bfc953f066c54c8f8989b0585e58681d-colord.service-QhckWW’: Permission denied
find: ‘/tmp/systemd-private-bfc953f066c54c8f8989b0585e58681d-systemd-timesyncd.service-A46ooI’: Permission denied
find: ‘/tmp/systemd-private-bfc953f066c54c8f8989b0585e58681d-rtkit-daemon.service-pZ6U3J’: Permission denied
find: ‘/lost+found’: Permission denied
find: ‘/var/tmp/systemd-private-7216baf4e9e24f4b99aa9cd9d37e9779-rtkit-daemon.service-vEpGYO’: Permission denied
find: ‘/var/tmp/systemd-private-c9508c53c88848febd8d6b9c7758d44d-colord.service-6sVMbw’: Permission denied
find: ‘/var/tmp/systemd-private-7216baf4e9e24f4b99aa9cd9d37e9779-systemd-timesyncd.service-DifcXc’: Permission denied
find: ‘/var/tmp/systemd-private-7216baf4e9e24f4b99aa9cd9d37e9779-colord.service-j5hYyg’: Permission denied
find: ‘/var/tmp/systemd-private-81dcc732570e47799cb04c3cb0c5a2c6-systemd-timesyncd.service-dSg1Cz’: Permission denied
find: ‘/var/tmp/systemd-private-f72e80f0374645bda6c2d99c5628e374-colord.service-FbxlSK’: Permission denied
find: ‘/var/tmp/systemd-private-5065912711c44bfd880f3aca2d0008e7-colord.service-rq0MKq’: Permission denied
find: ‘/var/tmp/systemd-private-bfc953f066c54c8f8989b0585e58681d-rtkit-daemon.service-W2mqTy’: Permission denied
find: ‘/var/tmp/systemd-private-5065912711c44bfd880f3aca2d0008e7-rtkit-daemon.service-Nmhoc5’: Permission denied
find: ‘/var/tmp/systemd-private-bfc953f066c54c8f8989b0585e58681d-colord.service-yD6AKb’: Permission denied
find: ‘/var/tmp/systemd-private-310aa08f8dac48c087fb3d04eb13211d-rtkit-daemon.service-2aRSdk’: Permission denied
find: ‘/var/tmp/systemd-private-cc0e6bd6ee4c4e5a8e66d39c662b4262-systemd-timesyncd.service-cR7tKn’: Permission denied
find: ‘/var/tmp/systemd-private-81dcc732570e47799cb04c3cb0c5a2c6-colord.service-RpnOff’: Permission denied
find: ‘/var/tmp/systemd-private-93e35b4b8e084692829998454c625032-rtkit-daemon.service-FPP0C0’: Permission denied
find: ‘/var/tmp/systemd-private-f72e80f0374645bda6c2d99c5628e374-rtkit-daemon.service-KSb7II’: Permission denied
find: ‘/var/tmp/systemd-private-93e35b4b8e084692829998454c625032-colord.service-umcrrr’: Permission denied
find: ‘/var/tmp/systemd-private-bfc953f066c54c8f8989b0585e58681d-systemd-timesyncd.service-zCbfRG’: Permission denied
find: ‘/var/tmp/systemd-private-cc0e6bd6ee4c4e5a8e66d39c662b4262-rtkit-daemon.service-YUHCBb’: Permission denied
find: ‘/var/tmp/systemd-private-f72e80f0374645bda6c2d99c5628e374-systemd-timesyncd.service-3gwsBe’: Permission denied
find: ‘/var/tmp/systemd-private-c9508c53c88848febd8d6b9c7758d44d-systemd-timesyncd.service-9KAj0J’: Permission denied
find: ‘/var/tmp/systemd-private-81dcc732570e47799cb04c3cb0c5a2c6-rtkit-daemon.service-Lua60R’: Permission denied
find: ‘/var/tmp/systemd-private-cc0e6bd6ee4c4e5a8e66d39c662b4262-colord.service-9wRZuD’: Permission denied
find: ‘/var/tmp/systemd-private-310aa08f8dac48c087fb3d04eb13211d-systemd-timesyncd.service-1IVY9S’: Permission denied
find: ‘/var/tmp/systemd-private-310aa08f8dac48c087fb3d04eb13211d-colord.service-BcEhRd’: Permission denied

I'm not really sure what most of these files mean. Are these files part of the "libcuda" ? Or does this mean libcuda isn't installed.

Thank you.

After listening to what @ravery suggested:

I tried this:

ls /usr/local/cuda-8.0/doc/man/man7/libcuda.so.7 -la

which gave me an output of this:

-rw-r--r-- 1 root root 26 Jan 26 2017 /usr/local/cuda-8.0/doc/man/man7/libcuda.so.7

And if I run nvidia-smi I get back this:

------------------------------------------------------+
| NVIDIA-SMI 340.104 Driver Version: 340.104 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce GTX 260 Off | 0000:01:00.0 N/A | N/A |
| 40% 46C P12 N/A / N/A | 226MiB / 895MiB | N/A Default |
+-------------------------------+----------------------+----------------------+ +-----------------------------------------------------------------------------+ | Compute processes: GPU Memory | | GPU PID Process name Usage | |=============================================================================| | 0 Not Supported 

So I have to link my libdua.os.7 to my graphics card driver?

What's the best way to find this driver. Thank you.

I also tried this:

ln -s /usr/local/cuda-8.0/doc/man/man7/libcuda.so.7 /usr/local/cuda/lib/libcuda.so.1

output:

failed to create symbolic link '/usr/local/cuda/lib/libcuda.so.1': No such file or directory

EDIT: After playing around for a few days. I'm still stuck.

More info:

If I browse my computer directory, I noticed that there is a CUDA-8.0 at this location:

/usr/local/

I also see a CUDA folder with an arrow on it (which I presume represents a shorcut) here in

 /usr/local

Second Update:

Running this command:

export PATH=$PATH:/usr/local/cuda-8.0/bin

Now nvcc --version returns:

vcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2016 NVIDIA Corporation
Built on Tue_Jan_10_13:22:03_CST_2017
Cuda compilation tools, release 8.0, V8.0.61

However,

locate libcuda.so.1

still returns an empty screen.

2

4 Answers

I had the same problem on an NVIDIA GPU Cloud Image on a Standard_NV6 on Azure, running inside Docker. For me, the problem was that I was running

docker run -it tensorflow/tensorflow:latest-gpu-py3 bash

and I should have run it with the flag --runtime=nvidia or nvidia-docker instead of docker:

nvidia-docker run -it tensorflow/tensorflow:latest-gpu-py3 bash
docker run --runtime=nvidia -it tensorflow/tensorflow:latest-gpu-py3 bash

It should link to /usr/local/lib/cuda/lib64/stubs/libcuda.so.1

There might be various issues. Not only with CUDA but with Nvidia-drivers too.

My advice : Install tensorflow-gpu with conda.

If you have installed CUDA9.0, I don't think there is much you can do. Please check tensorflow website for supported CUDA versions.

1

these are not files, they are directories that could not be opened due to permissions. Your file won't be there.

libcuda.so.1 is actually a link not a file. It links to your version file:for example, libcuda.so.1 links to libcuda.so.361.42.

The following commands will print the path where your link has to be located and find your version file.

echo $LD_LIBRARY_PATH #path
sudo find /usr/ -name 'libcuda.so.*' #version

If you find libcuda.so.1, then copy it into your path. If not make a link in your path that points to the version file.

3

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