How to Increase number of NVENC concurrent sessions

Gaming and Visualization Technologies Video Processing & Optical Flow
1

I want to know how I can increase number of NVENC sessions from the single Computer. I know currently with single GPU max sessions achievable is 3. Is it possible to increase that limit by adding more GPUs to the machine or doing API changes ?

2

Hi,
Please refer https://developer.nvidia.com/video-encode-and-decode-gpu-support-matrix-new#Encoder to identify GPUs that can support more than 3 concurrent sessions.

Thanks.

3

Hello,

I have noticed that the number of concurrent NVENC sessions has varied in recent years. Previously, a GeForce GTX 1650 had a maximum of 3 sessions, which allowed encoding 3 video sources with NVENC. A year ago, this number changed to 5, and today it states 8. The problem is that despite the documentation stating 8, with a CUDA version 12.2 and a driver version 530, the maximum number of encodings it allows me to do is 3. Is there an error in the information provided by Video Encode and Decode GPU Support Matrix | NVIDIA Developer? How can I achieve the 8 sessions?

Which version of CUDA or driver allows 5 or 8 simultaneous encodings with a GeForce GTX 1650?

4

SDK 12.1 application note mentions “On non-qualified GPUs, the number of concurrent encode sessions is limited to 5 per system”

This requires Windows driver version 531.61 or higher and Linux driver version 530.41.03 or higher.

SDK 12.2 application note mentions “On non-qualified GPUs, the number of concurrent encode sessions is limited to 8 per system. ”

This requires Windows driver version 551.76 or higher and Linux driver version 550.54.14 or higher.

Hope this clarifies.