The application will receive a grid launch failure, and the CUcontext will begin to report errors. You will not be able to step, set breakpoints, view variables, etc. This is because with most CUDA applications, a TDR means that any debugging operation after the TDR will fail. When using either a local debugging configuration with multiple GPUs, or a remote debugging configuration, it's important to disable TDR. Local Debugging with Multiple GPUs or Remote Debugging In the Options window on the General tab, set WDDM TDR enabled to True.Ĭhange the WDDM TDR Delay from the default setting to 10.Right-click the Nsight Monitor icon in the system tray.To enable TDR and change the delay, do the following: Therefore, if you are using local debugging with a single GPU, it's recommended that you leave TDR enabled, and set the delay to 10 seconds. With too low of a TDR delay, the kernels may not have enough time to complete. Debug builds of CUDA kernels run more slowly and may intrinsically require additional time to complete.Debugging on some GPUs will fails with a TDR delay of less than 10 seconds.
However, setting the TDR delay too low can cause the debugger to fail for one of two reasons: There are three different possible debugging configurations:Ĭhoose the one that most closely reflects your NVIDIA Nsight setup: Local Debugging with a Single GPUĭisabling TDR removes a valuable layer of protection, so it is generally recommended that you keep it enabled.
#Topaz studio 2 nvideo timeout driver
If TDR is enabled and you see the TDR error message, "Display driver stopped responding and has recovered," this means that the Windows operating system reset the display driver. If the operating system does not receive a response from a graphics card within a certain amount of time (default is 2 seconds), the operating system resets the graphics card.īefore TDR existed, problems of this nature would have resulted in a system freeze and required a reboot of the operating system. This is a feature of the Windows operating system which detects response problems from a graphics card, and recovers to a functional desktop by resetting the card. TDR stands for Timeout Detection and Recovery. NVIDIA® Nsight™ Development Platform, Visual Studio Edition 2.2 User Guide