I’ve been writing CUDA code for a while and have not used cuda-gdb recently. Sysadmin upgraded CUDA to 9.2 and I can’t seem to get cuda-gdb to work. I have multiple codes that work correctly, but no matter what, each time I run the code inside cuda-gdb I get the error message
Error: Failed to suspend device for CUDA device 0, error=CUDBG_ERROR_COMMUNICATION_FAILURE(0x1c)
This is on a machine that has two Tesla K20c cards. As for details, I am running it on the command-line from a bash shell on a Ubuntu Linux system. The error occurs as soon as I try to step into any kernel no matter how simple. Any hints how to resolve this would be appreciated.