Optical Flow SDK fail with cudaErrorPeerAccessNotEnabled

Gaming and Visualization Technologies Video Processing & Optical Flow
1

Hi,
I’ve run sample of Optical Flow SDK 1.1 successfully, and my app integrates the code of Sample. The following errors are reported when running on the same machine. I really appreciate some help ASAP.

CUDA error at /app/.../kernel.cu:113 code=705(cudaErrorPeerAccessNotEnabled) "cudaCreateSurfaceObject(&srcSurfObj, &srcSurfRes)"

Can any one give me some suggestions on what I should/can do, thanks a lot!

Here is my configuration:

  • CPU : Intel(R) Xeon(R) Silver 4114 CPU @ 2.20GHz
  • RAM : 32 GB
  • DISK : 1 TB SSD

Current Driver 435.21
Cuda: 10.1 with cudnn
Ubuntu 18.04

Thanks

2

Is optical Flow SDK1.1 incompatible with Deepstream 4.0? I did experiments and found that it works well before creating ds4.0 pipeline，but the result is wrong. After creating ds4.0 pipeline, it runs out and reports errors as above.

3

What’s your GPU?
As you can find in Optical Flow download page, only Turing GPUs have Optical Flow capability.

4

Hi mchi，
My Gpu is T4.