OpenFX is Single Threaded - Quite Slow

Dear Developers...

OpenFX plugins in DaVinci resolve is quite slow because they are only single threaded. Can you please upgrade Resolve/Fusion to call them in multi-threaded mode?

Natron, for example, is 64 times quicker on my machine, because it runs an effect on 64 threads.

With all the optimisation work in the latest update, I think this is a pretty low hanging fruit. Simply implemeting the "OfxMultiThreadSuiteV1" suite to use multiple threads instead of one when called would be a huge optimisation.

There is a separate forum for Feature Requests.

viewforum.php?f=33

Best practice is to search first, to see if someone already asked. If not, post one idea per thread with a very brief description of the idea in the thread's title.

I'm surprised that OpenFX plugins are single-threaded. Does this include the built-in FX from BMD? Also, considering that most utilize the GPU, it could be the at the CPU level they are utilizing a single CPU thread (I'll take your word for it, I don't know) but they would certainly be using many GPU cores (e.g., CUDA), no?

OpenFX plugins written specifically for Resolve can use Cuda. (But this is not a standard OpenFX, its a BM exension). Besides, only certain types of calculations can be done on a GPU.

The standard multi-thread interface (OfxMultiThreadSuiteV1) is not fully implemeted. It is there, but it only runs one thread.

It's good to hear that there are avenues for future improvement, then.