I tried to install Accelerad again on Ubuntu cause I updated the nvidia driver. Firstly, I moved the unpacked folder to /usr/local and then the file ~/.bashrc is edited like this:
There occurred an error about the shared library when I test the .sh file in the demo :
I am not sure about my installation process. Besides, I installed the Radiance with the same procedure and it works well. I hope you or anyone can supply any guidance or suggestions, thanks!