Unable to find 'nvcc'

Hi! I'm start learning programming Jetson TX2. After installing all packages i try code from help:

>> envCfg = coder.gpuEnvConfig('jetson'); % Use 'drive' for NVIDIA DRIVE hardware
envCfg.BasicCodegen = 1;
envCfg.Quiet = 1;
envCfg.HardwareObject = hwobj;
coder.checkGpuInstall(envCfg);

and get answer:

Error using coder.checkGpuInstall (line 32)
One or more of the system checks did not pass, with the following errors ...
Compatible GPU: (Invalid CUDA device id: 0. Select a device id from the range 0:-1)
CUDA Environment: (Unable to find 'nvcc' on the system path. Update the '.bashrc' script on the target to setup the 'PATH'
environment variable.)

but on TX2 have:

user@user-tx2:~$ nvcc --version
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2018 NVIDIA Corporation
Built on Sun_Sep_30_21:09:22_CDT_2018
Cuda compilation tools, release 10.0, V10.0.166
user@user-tx2:~$ echo $PATH
/usr/local/cuda-10.0/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin

How fix problem with nvcc?

[Hannah Nithilla]

I have the same problem in Jetson nano. How did you solve it?. Please reply

[Kevin Jia]

Has this issue been resolved? If so, would you please share how to get it done?

Thanks,

Kevin

[贝宁 竺]

I have the same problem in Jetson TX2 nx. How did you solve it?

Answer 1

[Alejandro Josue Calderon Torres]

Hi,

I was having the same problem, I solved it by correctly modifying the .bashrc file. In the .bashrc file of your Jetson board look for this section:

# If not running interactively, don't do anything
case $- in
    *i*) ;;
      *) return;;
esac

And modify it like this:

# If not running interactively, don't do anything
case $- in
    *i*) ;;
      *) 
         export PATH=$PATH:/usr/local/cuda/bin
         export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda/lib64
         return;;
esac

This way now coder.checkGpuInstall(envCfg); passes without errors or warnings.

Best regards

[Safwana Razak]

Thanks Alejandro!! this is the best solution so far.

[Tohru Kikawada]

This is now described in "Environment Variable on the Target" section in the official documentation.

Answer 2

[Walter Roberson]

When you start MATLAB from an icon, it does not go through a login shell. Copying from a previous posting of mine, https://www.mathworks.com/matlabcentral/answers/27762-executing-unix-commands-set-in-path-in-matlab-does-not-work-with-unix-command#comment_194290

[your current PATH configuration might be done in] /etc/profile or ~/.bash_profile or ~/.bash_login or ~/.profile as those are the ones checked for interactive login, which would not be the case in this situation. However, ~/.bashrc would be used for interactive non-login shells, and for any shell the environment variable BASE_ENV is checked and if it refers to a file then the file is sourced. But if the shell was invoked as "sh" instead of as "bash" then some of the above files are skipped and the environment variable examined is ENV instead of BASE_ENV