Full 4k raw editing with new Mac Pro?

[Ericbowen]

No it cannot playback Full Res at 4K or 5K nor can any other software right now other than Redcine X Pro with the GPU debayering. The latency for processing the 4k and 5K red media is just to long right now until the debayering goes GPU side. However my 12 Core 2697 V2 Xeon on an X79 with a 770GTX 4GB card can playback 1/2 resolution easy. If you got the 8 or 10 Core you probably could then though I am sure the 10 Core could have.

Eric-ADK
Tech Manager
support@adkvideoediting.com

[Tom Gomez]

Thanks Eric! I guess I had some unrealistic expectations.

Do you think CinemaDNG 4k raw will be a similar story to RED as far as editing performance?

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[Tero Ahlfors]

I’m not quite sure what the bitrate is but uncompressed formats need pretty insane read/write speeds from the drives.

[Tim Kolb]

I think there are a few points of confusion with the new MacPros…

I think the sales pitch on the computer supporting a 4K UI display adds some confusion.

Many computers that may be able to run UHD ProRes footage (at least a stream of it, though running full resolution would still be a question on anything other than a monstrous NLE system) may give the impression to users that they can run 4K RED under the same circumstances. RED camera footage is raw and needs considerable processing above and beyond simply decompressing the data, so it’s quite different.

I also feel like the prevailing message is “if one GPU is good, 2 must be great!” and in a single CPU system, I have trouble understanding how the system has the resources to actually use all that GPU capability. It would be very interesting if a single GPU model of the new MacPro was available to compare actual performance yield.

TimK,
Director, Consultant
Kolb Productions,

Adobe Certified Instructor

[Chris Borjis]

I read an article where a vfx person put the Dyson smokeless ashtray…er New Mac Pro
to the test against a year old 12-core mac tower with near maxed out specs.

The results were over all, not much more performance.

One BIG issue that needs to be addressed is Apple/Adobe working
together to improve OpenCL to unleash the full power of the FirePro Gpus it has.

And like someone else mentioned, optimizing for RED debayering in the GPU.

[Tim Kolb]

[Chris Borjis] “One BIG issue that needs to be addressed is Apple/Adobe working together to improve OpenCL to unleash the full power of the FirePro Gpus it has.”

(smile) yeah…I can’t help but be a little skeptical of Apple’s intention to assist a competing NLE to achieve better performance on their box (it would make sense as Apple sells a box either way…but it is Apple after all, so I can assume nothing).

Adobe probably performs better with CUDA, though I don’t have any test data to quote…I just assume that CUDA was viable first and Adobe has been on CUDA longest.

The new MacPro is designed with lots of benefits…”flexibility” is not really on that list unfortunately.

Adobe will continue to improve OpenCL performance…they just happen to be two years ahead on CUDA…

TimK,
Director, Consultant
Kolb Productions,

Adobe Certified Instructor

[Chris Borjis]

ya that was one of his talking points Tim.

He was a bit upset there was no Nvidia options to really take
advantage of the very mature CUDA infrastructure.

He also mentioned apple has been very difficult at
getting OpenCL to work as good as it can, as if they
were doing that purposefully.

[Ericbowen]

Yes DNG requires close to the same processing that Red does though the bit rate on DNG is much higher.

Eric-ADK
Tech Manager
support@adkvideoediting.com

[Ericbowen]

Cuda in general normally performs better than Open CL right now in applications where both are used. CUDA has far more development time behind it especially memory management. Open CL has a very long development timeframe a head to mature. Don’t expect that gap to close completely anytime soon. Only Vegas has been better Open CL based versus Cuda which like everything else Sony does is backwards.

Eric-ADK
Tech Manager
support@adkvideoediting.com

[Christoph Heimer]

I’ve got the 8c nMP with dual D700 and 64gb ram.
I can play back 5k Epic Footage at 8:1 compression in Premiere at 1/2 perfectly smoothly. Actually a tiny bit better than in FCP X. For actual editing and a ProRes like feel in responsiveness I have to set playback resolution to 1/4, which is perfectly fine, cause it still looks basically like 1080p Footage.

I made the observation that there’s a difference in playback performance regarding the compression of the footage. 8:1 plays back better than 4:1. I wonder why that is! Already have a thread at reduser going, but nobody could give me a proper answer so far.

I always thought less compression = less workload on the system. My Lacie Little Big Disk 2 can’t be the bottleneck.