AppDecGL app fails to run on second GPU in the system

Gaming and Visualization Technologies Video Processing & Optical Flow
1

Hello,

I am trying to run the AppDecGL sample app on a second GPU (GPU1) in my system. It runs fine on GPU0. Following is the system info.
Motherboard : ASUS X99-WS
2 Quadro P4000 Cards
Windows 10
CUDA 10
Latest Driver (412)
I have configured Mosaic with 1x5 display wall, 4 displays connected to GPU0 and 5th connected to GPU1.
When I give -gpu 1 in arg list to run the app, it crashes at ck(cuGraphicsResourceGetMappedPointer(&dpBackBuffer, &nSize, cuResource)); in FramePresenterGL.h in Display() function, with error CUDA_UNKNOWN_ERROR.
Can anyone help or show me how to run that app (decode and render) on second GPU (or for that matter any GPU other than GPU0)?

Thanks

2

Hi ajoshi,
Do you still reproduce this issue? If yes, can you help with minimized reproduction steps.
Is mosaic configuration required or issue occurs with a single display as well?