can't enter into __global__ function using cuda

Question

I have written a code on Nsight that compiles and can be executed but the first launch can\'t be completed.

The strange thing is that when I run it in debug mode, it wor

Answer 1

linux has a watchdog mechanism. If your kernel runs for a long time (you say it is slow in debug mode) you can hit the linux watchdog, and receive the "launch timed out and was terminated" error.

In this case you have several things you might try. The options are covered here.