About Async(Copy) Engines

zetpop10
Thu, 02 Oct 2025 21:55:10 +0000
CUDA-GDB

I want to know the number of asynchronous engines of the graphics cards I’m asking about.
And if the number of asynchronous engines is 1 instead of 2 or more, I’d like to know how to perform HtoD / DtoH simultaneously.
Additionally, if the original number of asynchronous engines of these graphics cards is 2 or more, but cudaGetDeviceProperties(&deviceProp, deviceI) returns 1, I’d like to know how to restore the original number of asynchronous engines.

Here is the list of graphics cards I own:

1. RTX 3090 Ti

2. RTX 3070

3. RTX 3080

4. RTX 5090

3 posts - 2 participants