On 11/14/2015 04:29 PM, Bruce Labitt wrote:
>
> Original link: from
> http://askubuntu.com/questions/693145/installing-cuda-7-5-toolkit-on-ubuntu-15-10
>
> /I wanna share my experience on installing CUDA 7.5 (in order to use with
> Theano) on Ubuntu 15.10. /
>
> //
>
> 1.
>
> /I installed Ubuntu 15.10 and the video driver (352.41) from the
> "Additional Drivers" tab;/
>
> 2.
>
> /Installed few dependencies like //|nvidia-modprobe|//(fix
> permissions problems), and for the samples compiling
> //|freeglut3-dev libx11-dev libxmu-dev libxi-dev libglu1-mesa-dev|/
>
> 3.
>
> /And because it needs GCC 4.9: //|sudo apt-get install gcc-4.9
> g++-4.9|//, then made symlinks in //|/opt/compiler_cuda|//(created
> the folder with an arbitrary name of my choice) as follows://
> / /|$ ls -la /opt/compiler_cuda/|//
> / /|lrwxrwxrwx 1 root root 22 Nov 2 16:14 cc ->
> /opt/compiler_cuda/gcc|//
> / /|lrwxrwxrwx 1 root root 16 Nov 2 16:13 g++ -> /usr/bin/g++-4.9|//
> / /|lrwxrwxrwx 1 root root 16 Nov 2 16:12 gcc -> /usr/bin/gcc-4.9|//
> //Registered //|update-alternatives|//with://
> / /|sudo update-alternatives --install /usr/bin/gcc gcc
> /usr/bin/gcc-5 60 --slave /usr/bin/g++ g++ /usr/bin/g++-5|//
> / /|sudo update-alternatives --install /usr/bin/gcc gcc
> /usr/bin/gcc-4.9 50 --slave /usr/bin/g++ g++ /usr/bin/g++-4.9|//
> /
>
> 4.
>
> /Downloaded "runfile (local)" 15.04 version, from //CUDA 7.5
> Downloads <https://developer.nvidia.com/cuda-downloads>//; and
> installed with://
> / /|sudo sh cuda_7.5.18_linux.run --silent --toolkit --override|//
> / /|sudo sh cuda_7.5.18_linux.run --silent --samples --override|//
> //and appended in //|.bash_aliases|//(.bashrc reads it)://
> / /|export PATH=/usr/local/cuda-7.5/bin:$PATH|//
> / /|export LD_LIBRARY_PATH=/usr/local/cuda-7.5/lib64:$LD_LIBRARY_PATH|/
>
> 5.
>
> /Appended //|compiler-bindir = /opt/compiler_cuda|//in
> //|nvcc.profile|//, so nvcc can use it./
>
>
> I'm trying to do step 3. I have seen similar instructions in the past. I
> may have done something like this in the past, but, I am temporarily
> suffering from CRS. I believe this will work, although as you have stated,
> it may not be optimal. For Wily Ubuntu 15.10, the default gcc is 5.2.
> Nvidia is stuck at 4.9, hence the update alternatives command in step 3.
>
> Is there any reason step 3) won't work?
>
> To make the symlink |cc -> /opt/compiler_cuda/gcc, what is the command?
>
> Does *ln -s /usr/bin/cc /opt/compiler_cuda/gcc* do what the author states
> above? Or do I have it backwards?
Oh. Well, bearing in mind that this "cc" symlink itself is expected to
*reside in* /opt/compiler_cuda, the command that guy must have run is:
ln -s /opt/compiler_cuda/gcc /opt/compiler_cuda/cc
It would suffice to do:
ln -s gcc /opt/compiler_cuda/cc
It *might* even be less confusing.
--
"Don't be afraid to ask (λf.((λx.xx) (λr.f(rr))))."
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