CUDA 7.5 installation: Unsupported compiler error

Question

I just tried installing CUDA 7.5 on my laptop. I disabled lightdm and did sudo sh cuda7.5.run. The driver installation passed but then I got an error Unsupported compiler ... and the installation fails. How can I resolve this issue?

switch to a supported configuration. Supported configurations are covered in [the documentation](http://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#system-requirements). If you are using ubuntu 15.10 (as your question is tagged), that is an unsupported configuration for CUDA 7.5 — Robert Crovella, Jan 08 '16 at 07:31
It is still possible to install CUDA on an unsupported configuration. Try to install gcc-4.8 and all the other required dependencies (like linux-headers etc.) Set gcc-4.8 as default compiler (something similar to the following cd /usr/bin rm cc gcc c++ g++ ln -s /usr/local/bin/gcc-4.8 cc ln -s /usr/local/bin/gcc-4.8 gcc ln -s /usr/local/bin/c++-4.8 c++ ln -s /usr/local/bin/g++-4.8 g++ `). Then try to install again. — Davide Spataro, Jan 08 '16 at 11:15

score 27 · Answer 1 · edited Jul 28 '16 at 18:16

27

I had a similar issue installing CUDA 7.5 in Ubuntu 16.04.

I've solved it using gcc/g++ 4.8 instead of 5.2.

You can install it and switch the default version using the command update-alternatives --install

For gcc 4.8 do:

sudo apt-get install gcc-4.8
sudo update-alternatives --remove-all gcc
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 10

For g++ 4.8 do:

sudo apt-get install g++-4.8
sudo update-alternatives --remove-all g++
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 10

edited Jul 28 '16 at 18:16

Community

1
1

answered Jun 02 '16 at 23:00

Martinez Mariano

541
8
19

for the g++, the first command line is wrong use `sudo apt-get install gcc-4.8` instead. – herve Jul 27 '16 at 16:19
1

Thanks @herve I've fixed the example for g++. – Martinez Mariano Jul 28 '16 at 18:17
1

Worked for Cuda 9 in Ubuntu 18.04 – Saurabh Dec 25 '18 at 06:33

score 1 · Accepted Answer · answered Jan 08 '16 at 22:48

The problem was with Ubuntu 15.10. I installed 14.04 and could install CUDA. However, for my laptop there was a subtle point to mention. I had to install the NVIDIA driver via System Settings --> Software & Updates --> Additional Drivers and selecting the tested driver. Then I installed CUDA and answered No to driver installation bundled with CUDA installation file.

score 0 · Answer 3 · answered Feb 21 '17 at 19:40

0

You do not need to downgrade your gcc version. For the people who want to keep their gcc version, I recommend you use the following way. http://kislayabhi.github.io/Installing_CUDA_with_Ubuntu/

answered Feb 21 '17 at 19:40

Dave.Cheng

57
1
6

score -2 · Answer 4 · edited Jun 29 '17 at 13:25

-2

sudo apt-get update unity should also help

edited Jun 29 '17 at 13:25

Simon H

2,495
4
30
38

answered Jun 29 '17 at 05:16

Kartik Sonu

7

CUDA 7.5 installation: Unsupported compiler error

4 Answers4