After installing CUDA on Tegra Tx1 and sourcing the bashrc it will not find NVCC

Question

After flashing the Tegra Board the CUDA Drivers (including the CUDA compiler nvcc) must be installed. To do so I simply used the given format:

sudo ./cuda-l4t.sh .cuda-repo-l4t-8-0-local_8.0-76_arm64.deb 8.0 8-0

and

source ~/.bashrc

but when I enter nvcc -V it does not show the wanted specification about the nvcc, it just tells me that the command was not recognized

Answer 1

First of all you should check if CUDA was really installed!

To do so go to the path:

/usr/local 

There must be a cuda folder or a folder named cuda-8-0 or whatever version you installed. Remember the name and the path. Now check your bashrc by using gedit/vi/nano/vim whatever you prefer:

vim ~/.bashrc

Go to the bottom of the file. There should be some exports regarding the PATH Variable and the LD_LIBRARY_PATH . Check if it was written to these variables and then overwritten again.

You must export the Path to the bin folder of your CUDA application and the Path to lib64 folder.

To do so at the bottom of the bashrc must stand something like this:

export PATH=/usr/local/cuda-8.0/bin: ....
export LD_LIBARY_PATH=/usr/local/cuda-8.0/lib64: ....

After the double dots may follow some other paths. make sure that the path given to the cuda application is the correct one and that it is not overwritten again.

After you made the correct changed do not forget to source the basrhc again.