NSight attach shows no available processes

Question

I am having a weird problem that when trying to attach am application with NSight, there is no available processes showing up in the list.

I am trying to debug CUDA code. So I attached my VS2012 project to an application (MATLAB). It used to work fine, but until yesterday there is no available process to attach somehow. Weird.

Here is the things I have done:

1. NSight 5.0 Setup:

2. Environment NSIGHT_CUDA_DEBUGGER = 1 in both personal and system settings.

3. Open VS2012 project and -> tools -> attach to process -> Nsight GPU Debugger

In Step 3, there is no processing showing up. And once I chose Nsight GPU Debugger and my localhost, the Nsight says it is already connected.

I am using VS2012 Pro, Windows 7, CUDA 7.5, and Nsight 5.0. Any help is greatly appreciated.

Answer 1

Check which display driver version you have installed. From the release notes of Nsight 5.0:

From the NVIDIA web site, download and install the following display driver (or newer):

Driver Release 355.85, Release 355 or newer

Also, you may need to start the monitor with Admin rights in Windows 7.

Answer 2

I solved this issue by downgrading NSight to 4.5, as well as the drive that fits NSight 4.5

For Nsight 5.0, I could not get it work anyway. The driver version was right, but it just did not work as far as I have tried.

Answer 3

When this happened to me, checking and un-checking the "show processes from all users" button triggered the dialog to be repopulated.