I have a nvidia geforce gt 640 grafik card that should support CUDA. So does the CUDA Multi-Threading Support automatically work when I install an Acqua plugin? Or do i have to activate it somehow with the CUDA software found here https://developer.nvidia.com/cuda-downloads
And if so, is this CUDA 6.5 version already supported by acustica?
I would be glad if there's a manual showing how to do this or someone could explain it to me! Thanks for the help!
Cuda is a bit hit-and-miss. If it works, it only works on very specific Nebula programs (like very long reverbs).
I think that it only works OK-ish on kernels of 100ms (or 150ms) and longer, and all the kernels in the preset must be of the same length.
Cuda 6.5 is not supported (yet), there is a 'bridge' for 5.0 and 6.0. If you install the correct Cuda toolkit from nvidia, and then install the correct CudaBridge from Acustica, you can change the algorithm to the cuda-version in the Nebula config (on the 'MAST' page, there is an option 'OPT FREQD' which defaults to '11 IPPS ch 2Mono' (use intel-optimized PPS math library, default, fast, specially on newer Core i5/i7 machines with AVX and such). If you have the NebulaBridge installed correctly you can change it to '15 CUDA ac 2Mono'. If there is no blinking '!' in front of it (even after saving and reloading Nebula / DAW) it should be working.
Try for yourself if it actually helps. (At least under Windows) it's advisable to make a separate version / 'nebsetup' for Nebula with the CUDA config. That way you can pick Nebula, Nebula Reverb, Nebula Reverb-CUDA from the plugin list in your DAW and try / mix them out.
If you can't get it working, read the files in the Cuda bridge file, read the Cuda thread, or maybe the most important one: Reach support on the ticketing system .
I didn't realise 6.5 wasn't supported yet I've got 6.5 installed and running without a flashing light, I just renamed the cudart dll's to what the system said it hadn't found, so no idea what it's running in. seems to work ok when playing back a reverb thats 11% on my quad core with cuda apparently running, it just stutters away when I change OPT FREQD back to ipps it's still a mystery how this should be properly setup and I could be doing something very wrong so I'm suggesting don't do same in case your pc blows up, I wouldn't like that. A sub forum for Cuda on its own would help finding info a lot easier, same with nebula server, I've plenty of questions but finding the relevant thread is hit or miss at best with the limitations of the search
I wish I could drum half as well with two hands as one of Terry Bozzio's feet