No OpenCl with FirePro 8100

OldSmoke wrote on 5/13/2016, 2:29 PM

what is the full spec of your ne system. What is the source material and the render template used? Did you apply any FX?

Note that the AMD Cayman GPU (like a HD6970) is the last supported GPU by Sony AVC and MC AVC codecs. I think the w8100 is based on the Hawaii GPU.

You should still see great improvements in timeline playback. Try rendering to XDCAM EX with and without GPU Acceleration under preferences.

c2h wrote on 5/13/2016, 8:31 PM

Thanks.

MotherBoard : ASUS X99
16 Go Ram
2 ssd 512 in Raid0
Proc Intel I7-5820K
FirePro 8100
Win 7/64

Render in Std AVC/AAC Internet 1080p, from a source which is avi, screen capture in 12080x720.

When I go in preferences, I cans see that Video/GPU is Hawaï.

I test the same renderring, first with AVC/AAC Internet 1080p(1280x720) and second with XDCAM EX (same size) : it's exactly the same time.

In XDCAM EX, I have no OpenCl acceleration to set anywhere (this option is missing).

Christian

set wrote on 5/13/2016, 8:39 PM

What is the duration of your project, and how long is the rendering process?

john_dennis wrote on 5/13/2016, 9:04 PM

"[I]Render in Std AVC/AAC Internet 1080p, from a source which is avi, screen capture in 12080x720.[/I]"

Not a solution to your OpenCL question but rendering 720 to 1080 is a complete waste of CPU, GPU and your time for no benefit to society. You should not uprez but rather render to match your source video in this case.

c2h wrote on 5/14/2016, 2:10 AM

The file test is 30 seconds long, 40 fps, 1280x720.

The renderring is 23" (CPU) and 25" (OpenCl).

Christian

c2h wrote on 5/14/2016, 2:14 AM

That's I'm trying to do generally. But in some cases, I have to upgrade the resolution size (capturing DVD to project them with bad quality Video Projector).

In this particulary case, it's only a test.

After that, I've observed that filesize depends of frame size. Because we are in France, the Internet is slow, and I have to optimize a lot the download filesize as much as possible.

john_dennis wrote on 5/14/2016, 5:36 AM

"[I]I've observed that file size depends of frame size.[/I]"

File size is determined by bit rate.

"[I]Because we are in France, the Internet is slow, and I have to optimize a lot the download filesize as much as possible.[/I]"

Read this page to help you optimize for download no matter where you are in the world. Raising the frame size from 1280x720 to 1920x1080 will defeat your purpose of efficient transfer.

On your original question: A 30 second test is unlikely to be definitive for the difference between CPU only and GPU assisted rendering.

JohnnyRoy wrote on 5/14/2016, 8:13 AM

You are not going to see any difference in rendering CPU vs GPU if all you are doing is dropping a clip onto the timeline and rendering because your GPU is not supported for AVC rendering.

You will only see a difference when you start adding FX, color correcting, etc. Then the GPU will be faster because it will improve your timeline playback that feeds the render step.

~jr

c2h wrote on 5/14/2016, 11:20 AM

Thanks for this explanation. I'm a little bit new in videos.

I was worried with the idea to have spent a little bit money with no effect. I see it's not the case.

I'm now reassured? Thanks.

Christian

OldSmoke wrote on 5/14/2016, 12:34 PM

You also may want to read this.

c2h wrote on 5/15/2016, 1:09 AM

Very interesting. Thanks.

Christian