Tmpgenc VMW5 and CUDA

[nikgelfi]

Hi all, I recently bought a brand new Nvidia GTX 580.
I wanted to try using it for video filtering (mainly denoising) using Tmpgenc Video Mastering Works (ver 5.0.6.38) and CUDA.
No matter what I do, what filter I choose, the percentage of CUDA usage remains 0.0%, and CPU 100%.
I have already enabled CUDA in Tmpgenc (see attached screenshots for all the options I set and the result)...
The source file is an ordinary DV avi file, and I want to filter it and then encode to standard DVD format.
Any ideas?
System specs: Windows 7 x64, 6 GB RAM, CPU Intel Core 2 Quad Q9650, Nvidia GTX 580 (latest drivers 275.33 installed).
Thanks!

[twil21be]

I have the exact same problem.

I had a 9300 GS and was thinking that the video card was old an that was the problem but i recently bought a new 440 GT card from Gainward and it's the same! 100% processor 0% cuda. TMPGenc said at launch that it detects CUDA 3.1, did the necesary settings for it, but at encoding it shows very naturaly that cuda is used 0% ...

Does someone know why?


PS: I encode from AVCHD to BLURAY BMDV MPG.

[deadrats]

did you try clicking on "correct performance optimization on next launch"?

[twil21be]

Yes i did the performance optimization.

From my further readings I found out that TMPGenc doesn't uses CUDA for transcoding files. It's using CUDA for the rendering of some transitions. Since i don't use any transitions, i can say that "i know to use CUDA" is just marketing for TMPGenc...

Anyhow, it remains the single program that i found witch can transcode my avchd files in another mpg full hd format, without combining them, and keeping everything pretty simple like it should be, when converting multiple files into another multiple files for further editing into another program. Too bad that CUDA won't help.

[deadrats]

From my further readings I found out that TMPGenc doesn't uses CUDA for transcoding files. It's using CUDA for the rendering of some transitions. Since i don't use any transitions, i can say that "i know to use CUDA" is just marketing for TMPGenc...

you read incorrectly; vmw5 can most certainly use cuda to encode and decode as well as for filtering.

you need to pick the cuda encoder from the drop down menu when you are choosing your output.

[roma_turok]

I have the exact same problem.

I had a 9300 GS and was thinking that the video card was old an that was the problem but i recently bought a new 440 GT card from Gainward and it's the same! 100% processor 0% cuda. TMPGenc said at launch that it detects CUDA 3.1, did the necesary settings for it, but at encoding it shows very naturaly that cuda is used 0% ...

Does someone know why?


PS: I encode from AVCHD to BLURAY BMDV MPG.

Download Tmpgenc VMW5 trial version for TEST only
If trial version use CUDA, so you have problem with yours Tmpgenc VMW5 version.

[twil21be]

I have TMPGENC VMW5. It does NOT use CUDA for encoding files. I am transcoding AVCHD to MPG2 Bluray for editing purposes.

What I said about TMPGenc using CUDA only for effects and probably filtering was something that I read from another forum and I thought sharing it with you. It makes perfect sense since I use a decent video card (440 GT) with latest drivers and not being able to use CUDA with TMPGenc VMW5 in transcoding my files.

>deadratspick: I will try at home to see about the option you are talking in "choose the cuda encoder from the drop down menu when you are choosing your output". Maybe I missed that tab, but I have doubts about that!

[TimA-C]

I've got an nVidia GTS450 and TMPGENC VMW5 and it uses CUDA just fine! Have you updated your nVidia graphics drivers? Are you running the latest version of TMPGENC VMW5? Are you using ffdshow to load the files into TMPGENC VMW5? if so try going into ffdshow and removing VMW5 from the list of programs that can use ffdshow. Read the VMW5 help file to make sure that CUDA can be used in the filtering and type of encoding that you're doing. (IIRC VMW5 can't use CUDA for all types of encoding, but I could well be wrong so check it for yourself.)

[deadrats]

i just realized where the confusion lies; it uses the reference cuda encoder for h264, but you're going from avchd to mpeg-2, there is no cuda powered mpeg-2 encoder in existence (there used to be a dx9 shader powered mpeg-2 encoder), you should however be able to choose avc decoder from the settings menu, which should provide a speed boost.

[twil21be]

deadrats> you are right! I was sitting on a CUDA enabled computer, with a CUDA enabled software and didn't know how to properly use it!

So, after setting: option, preferences -> mpeg video decoder - > mp1, mpg2 and mpeg-4 video decoder to CUDA hardware the video card started calculating for me processor 9% and CUDA 91 percent. With my 440 GT video card, the gain in time was not so big: 3:20 second with CUDA, 3:43 seconds without CUDA (total encoding time for about 3-4 minutes of avchd media).

It's too bad that mpg2 for bluray can't be encoded with the help of CUDA. I cannot select only the "Standard encoder" in "format" tab. There are other encoding formats that allow "CUDA hardware" as the "video encoder", as the MKV file output.\

Anyhow, it seems that my 440gt isn't that fast. But is faster than my I7 - 2600k processor

Well, thanx guys for the help out!