I just came across a weird situation after installing cuda... I literally followed every single step suggested by the nvidia website: http://docs.nvidia.com/cuda/cuda-getting-started-guide-for-linux/#axzz3H0tm46yY.... everything seems to be fine, even the samples work... however when I try to run the "hello world" program presented in Cuda by Example documentation, the terminal displays:
The program 'nvcc' is currently not installed. You can install it by typing:
sudo apt-get install nvidia-cuda-toolkit
This is quite strange since nvcc should already be installed during the procedure suggested by the nvidia website....
Does anyone have any idea?
The PATH variable needs to include your cuda /bin directory (by default it is /usr/local/cuda-6.5/bin)
On Ubuntu you can edit the .bashrc file on your $HOME directory, adding the following;
export PATH=/usr/local/cuda-6.5/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/cuda-6.5/lib64:$LD_LIBRARY_PATH
If you are running a 32-bit Ubuntu version, then the paths are:
export PATH=/usr/local/cuda-6.5/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/cuda-6.5/lib:$LD_LIBRARY_PATH
After editing the bashrc file, source it (or simply restart the terminal):
source ~/.bashrc
Of course, if you have changed the default location of your CUDA directory you must change the PATHS accordingly.
PLUS: there are another options to tell the system where to find a library, a program, etc. like using enviromental modules, specify the complete path to the libraries and programs manually are another options. There are many methods out there!
Related
I was trying to run nvcc -V to check cuda version but I got the following error message.
Command 'nvcc' not found, but can be installed with:
sudo apt install nvidia-cuda-toolkit
But gpu acceleration is working fine for training models on cuda. Is there another way to find out cuda compiler tools version. I know nvidia-smi doesn't give the right version.
Is there a way to install or configure nvcc. So I don't have to install a whole new toolkit.
Most of the time, nvcc and other CUDA SDK binaries are not in the environment variable PATH. Check the installation path of CUDA; if it is installed under /usr/local/cuda, add its bin folder to the PATH variable in your ~/.bashrc:
export CUDA_HOME=/usr/local/cuda
export PATH=${CUDA_HOME}/bin:${PATH}
export LD_LIBRARY_PATH=${CUDA_HOME}/lib64:$LD_LIBRARY_PATH
You can apply the changes with source ~/.bashrc, or the next time you log in, everything is set automatically.
As #pQB and #talonmies above mentioned you only need to install the GPU drivers (Versioned 430-470 these days) to use PyTorch. If you are using your GPU display port you should be fine.
For Cuda compilation tools you need to install the whole toolkit, which includes the driver as well. If installing manually from CLI the downloaded file, CLI will give you the option to choose the components to install or skip.
Generally, it is recommended to install the compilation tools (which are system wide) and GPU drivers together because it avoids compatibility issues.
Append:
export PATH="/usr/local/cuda/bin:$PATH"
export LD_LIBRARY_PATH="/usr/local/cuda/lib64:$LD_LIBRARY_PATH"
to
~/.bashrc
Note: your path to cuda may include a version so navigate to /usr/local/ and check for cudaXX.XX and modify the command to point to that in ~/.bashrc
I have TeXmacs and Octave installed, both working properly otherwise. I have also added the path to octave executable (i.e. C:\Octave\Octave-5.1.0.0\mingw64\bin) to the Windows environment variables and octave runs in cmd/PowerShell terminals and Jupyter with no hassle. However, when running Octave inside TeXmacs through Toolbar > insert > session > octave it gets stuck on Busy..., the same reaction for any other commands as well:
Octave gets stuk on Busy... inside TeXmacs.
This is my environment:
TeXmacs 1.99.9
Octave 5.1.0 (installed through Chocolatey)
Windows 10 version 1809
I would appreciate if you could help me know what is the problem and how I can solve it.
P.S. I have reported this issue in the TeXmacs repo.
#Foad. I wrote an updated Octave plugin for Texmacs. I tried it on Windows, OSX and Linux, works on the systems I have access to. If you are interested to test it, you can download the zipped archive from here https://lists.gnu.org/archive/html/texmacs-dev/2019-12/msg00005.html.
To install it, unzip the archive and copy the octaveX directory in the application plugins folder, alongside all the plugins that come with the standard Texmacs installation. Won’t work if installed in ~/.Texmacs/plugins. If everything goes fine, you should find a new Insert/Session/OctaveX menu (note: I changed the session name). If not, try to refresh the plugin system with the menu Tools/Update/Plugins. If you try it, please let me know, especially if you find troubles. In case I will do my best to fix them.
A fundamental prerequisite is a working octave-cli command in a operating system shell. Should be standard on Linux, may require some additional setup on Windows (environmental variables) or OSX (.bash_profile). You can find some help and more details under the menu Help/Plug-ins/OctaveX.
Concerning the error you found, as far I understand there are some issues with the standard distributed plugin: first, a .octaverc file is missing, so several variables are not initialized, in addition the Windows version calls a not existent file. Moreover the plotting functions are quite old and are not compatibile with Octave newer than version 2 (or maybe 3, anyway a quite old version).
You could try to run the command in
%TEXMACS_PATH%/plugins/octave/bin/tm_octave.bat
from the terminal to see what happens. There is a problem with this plugin and it does not work also on Mac but I do not know enough Octave to fix it. Somehow it does not manage to find the files which are in
%TEXMACS_PATH%/plugins/octave/octave
Please try to modify tm-start.m to look like
d=getenv("TEXMACS_PATH");
if (length(d) > 0)
addpath("tm:polynomial:plot")
tmrepl
endif
In windows, octave should be run using the scripts octave.bat (in the mingw64\bin directory of the octave install) or octave.vbs (in the install directory) for the GUI
You should not run octave.exe directly.
I copied the commands (from these instructions: http://www.shogun-toolbox.org/install#ubuntu) into the terminal and they seem to have worked, but there is no documentation on how to make Octave find the libraries. I have tried modshogun and init_shogun but Octave cannot find them. I do have the libraries in usr/lib, and I have put that directory on PATH. I have even set usr/lib as my working directory in Octave and that did not help. As far as I have found, there is no Shogun documentation on what to do at this point.
I have also tried compiling Shogun from source, but configure couldn't find GCC. Apparently, this is a known problem with newer versions of GCC. I decided to ask for help with the former method because at least I have the libraries with that.
Edit: I am following the instructions here http://www.shogun-toolbox.org/install#manual-basics
When i do cd build and then "cmake -DINTERFACE_OCTAVE=ON" it tells me there is no cmakelists.txt. There is one in in the above folder, but when I go to that directory and do "cmake -DINTERFACE_OCTAVE=ON" again, it tells me "Shogun can only be built with GPL codes if the source files are in /home/derose/shogun/src/shogun/src/gpl. Please download or disable with LICENSE_GPL_SHOGUN=OFF."
However, when I add -LICENSE_GPL_SHOGUN=OFF as an option, i get the error "CMake Error: The source directory "/home/derose/shogun/src/shogun/-LICENSE_GPL_SHOGUN=OFF" does not exist."
You've linked to the Ubuntu install instructions. From there
These currently do contain the C++ library and Python bindings..
No word that this would include the GNU Octave binding. See below on the same page:
The native C++ interface is always included. The cmake options for building interfaces are -DINTERFACE_PYTHON=ON -DINTERFACE_R .. etc. For example, replace the cmake step above by cmake -DINTERFACE_PYTHON=ON...
So you have to grab the source and fire up cmake with something like -DINTERFACE_OCTAVE=ON
Steps to build the bleeding edge of shogun (the github repo) and the Octave interface:
git clone https://github.com/shogun-toolbox/shogun && cd shogun
git submodule update --init
mkdir build && cd build
cmake .. -DINTERFACE_OCTAVE=ON
make -j4
recently came across a problem when compiling caffe on a server, prompts /usr/bin/ld: cannot find -lcudnn
since I don't have root priviledge, I installed CUDA-8.0 in my HOME directory, then download the libcudnn7-dev and manually do dpkg-deb -xv libcudnn-dev*.deb to extract the deb pkg, then I go to the lib directory, then run ar -x libcudnn*.a and gcc -shared *.o -o libcudnn.so, then copy the generated libcudnn.so to ~/cuda/lib64, then add the ~/cuda/lib64 to the LD_LIBRARY_PATH, but the error prompts, I don't know how to fix this, can someone help?
And I don't understand why it is /usr/bin/ld: cannot find -lcudnn, not something like LD_LIBRARY_PATH/=: cannot find -lcudnn
EDIT:
I downloaded the .tgz file and follow the install guide instructions to install cudnn, but it still prompts the error, my ~/.bashrc is configured:
export CUDA_HOME="~/cuda"
export PATH="/home/wangtao/anaconda2/bin:$CUDA_HOME/bin:$PATH"
export LD_LIBRARY_PATH="$CUDA_HOME/lib64:$LD_LIBRARY_PATH"
I find the /etc/ld.so.conf is like this :
include /etc/ld.so.conf.d/*.conf /usr/local/cuda-7.0/lib64
it is not my wanted path of ~/cuda/lib64, but don't know how to modify it since I don't have root priviledge on the server, I have compiled successfully on local machines, but this seems to be hard
We newbies need to learn more, maybe other people sometimes would not help you much, help yourself, learn more!
Turns out that linking is different from dynamic loading, linking done pre to dynamic loading, what LD_LIBRARY_PATH can affect is dynamic loading, which gives the library file path(eg, .so.1.0, not .so which is usually a symlink to .so.1.0 stuffs and is used for linker not loader), so adding the libcudnn.so path to LD_LIBRARY_PATH does not help, what /usr/bin/ld complains is that linker cannot find the cudnn library, so we need to add libcudnn.so path for the linker to find it, which is what LIBRARY_PATH cames to help, just add it to it, then linker can find it, sometimes we are just not on the right direction, do not annoying, just learning more:)
I have compiled a program in fedora using the mysql dev library (include mysql.h in header file). I need to compile in on FreeBSD. I do not want to download from source and compile but rather would like to download from ports or something equivalent to facilitate removing it if need be.
Does anyone know the equivalent of the libmysql-dev in FreeBSD. I have not found it in ports?
You do not need a special package for this. The standard mysql client package/port already includes the libraries and the header files you will need. The header files will end up, by
default, in /usr/local/include/mysql/ directory, while
the libraries will go to /usr/local/lib/mysql/.
So - just install a client from ports or packages, and you are set.
mysql.h is included in the mysql-client-xx port.
assuming you have a configure script or makefile you should set the LDFLAGS and CPPFLAGS environment variables to:
export LDFLAGS='-l /usr/local/lib'
export CPPFLAGS='-I /usr/local/include'
(or setenv, if using csh)
then ./configure and make as normal.
if you are compiling from the command line "gcc -o myprog mysource.c" just add the -I and -l options to your command and it should compile fine.
try: find /usr/local -iname 'mysql' to see files (headers, shared objects and binaries) you in fact have installed on your system.