Solve nvprof error err_ NVGPUCTRPERM - The user does not have permission to profile on the target device.

One 、 Problem description

         In the use of nvprof Insufficient permissions

nvprof --events branch,divergent_branch ./Simple_Divergence

Two 、 resolvent ：

1. see nvvp route

which nvprof
/usr/local/cuda-10.2/bin/nvprof

2. edit sudoers

         hold /usr/local/cuda-10.2/bin Add to Defaults secure_path Back , Save and exit .

sudo su
vim /etc/sudoers

3. function nvprof

         stay nvprof Add a front sudo that will do .

sudo nvprof --events branch,divergent_branch ./Simple_Divergence