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Shock result: OpenCL vs CUDA vs CPU

Explorer ,
Jul 08, 2015

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I did a rather unscientific test today on my Macbook Pro with CC2015 and got quite a surprising result. Turns out OpenCL is the worst performing option

I was in the process of considering purchasing an AMD Radeon R9 390 for my desktop machine but if the OpenCL performance of my Mac Book Pro are anything to consider then I best avoid OpenCL and AMD.

Looks like we still have to stick with NVIDIA and CUDA for any GPU performance benefits.

Adobe OpenCL Performance Shock.png

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Shock result: OpenCL vs CUDA vs CPU

Explorer ,
Jul 08, 2015

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I did a rather unscientific test today on my Macbook Pro with CC2015 and got quite a surprising result. Turns out OpenCL is the worst performing option

I was in the process of considering purchasing an AMD Radeon R9 390 for my desktop machine but if the OpenCL performance of my Mac Book Pro are anything to consider then I best avoid OpenCL and AMD.

Looks like we still have to stick with NVIDIA and CUDA for any GPU performance benefits.

Adobe OpenCL Performance Shock.png

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Jul 08, 2015 0
Adobe Employee ,
Jul 08, 2015

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Hi Westley,

Can you try with different source footage? I'm curious to see if GH4 footage is causing a memory leak and creating performance problems. There have been a couple of reports along those lines.

I would also like to see a test without Lumetri Color being involved. If you have time...

You should see different OpenCL performance on one of the newer R9 card in comparison with an older NVIDIA GPU, as well.

Thanks,

Kevin

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Jul 08, 2015 1
Explorer ,
Jul 08, 2015

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Hi Kevin, I've run it through with OpenCL, CUDA and CPU using HD 1920x1080 H264 footage. The render times on the results show performance with and without fx (Lumetri) output was Adobe Preset Vimeo 720HD therefore scaling operation is also taking place.

Again rather shockingly the OpenCL performance is extremely poor. I understand that the Nvidia GT650M is most likely optimised for CUDA over OpenCL. All that said it is a curious result that CPU outperforms GPU (OpenCL).

These test have been done on my Mac Book Pro. I am looking at upgrading my GPU on my windows desktop and considering an AMD Radeon R9 290/390 which will solely use OpenCL, however these tests do have me a little concerned.

Premiere Pro Performance HD.png

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Jul 08, 2015 0
Advocate ,
Jul 08, 2015

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westley wrote:

I did a rather unscientific test today on my Macbook Pro with CC2015 and got quite a surprising result. Turns out OpenCL is the worst performing option

As Kevin pointed out: older (and yes, 3 years is "older") NVidia GPUs were not really well-suited to OpenCL, so basing your decisions on that is probably not a great idea.

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Jul 08, 2015 1
Explorer ,
Jul 08, 2015

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I guess one thing to consider is that the OpenCL version of the nvidia GT 650M is OpenCL 1.1. Where are the OpenCL version of the likes newer of AMD R9 Radeon 390 is OpenCL 2.0.

However I can't seem to find any information in the Adobe documentation about supported or suggested OpenCL versions. Maybe someone here can point in the direction of suitable information.

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Jul 08, 2015 1
Engaged ,
Jul 08, 2015

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For me, on my MacBook Pro (Retina, 15-inch, Early 2013, NVIDIA GeForce GT 650M 1024 MB), I've found using CUDA in Premiere CC2014 to be extremely unreliable. I'll get a lot of crashes, and weird render glitches. If I switch to OpenCL, I generally get better real-time performance, and far less issues and crashes. So even if CUDA is faster in a speed test, I personally find it's not suitable for day-to-day work, at least on my system.


I'm running Premiere 8.2, MacOS 10.10.3, CUDA 7.0.52 and GPU Driver Version: 10.2.7 310.41.25f01.

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Jul 08, 2015 1
Adobe Employee ,
Jul 08, 2015

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Hi Chris,

For me, on my MacBook Pro (Retina, 15-inch, Early 2013, NVIDIA GeForce GT 650M 1024 MB), I've found using CUDA in Premiere CC2014 to be extremely unreliable. I'll get a lot of crashes, and weird render glitches. If I switch to OpenCL, I generally get better real-time performance, and far less issues and crashes. So even if CUDA is faster in a speed test, I personally find it's not suitable for day-to-day work, at least on my system. I'm running Premiere 8.2, MacOS 10.10.3, CUDA 7.0.52 and GPU Driver Version: 10.2.7 310.41.25f01.

For you and others on MacBook Pro and iMac computers, I would 100% agree with you. I have precisely the same model and issues that you do. That said, NVIDIA CUDA is absolutely a joy with none of these issues on my PC running WIN 8.1.

I know that info is meaningless if you only own Macs, but it is interesting that:

  1. The problem does not exist on the PC side
  2. The problem did not exist in OS X 10.8.5. It began in OS X 10.9.

If it were me, I'd be running Premiere Pro CC 2014.2 on OS X 10.8.5 with NVIDIA CUDA enabled. However, I have updated in order to troubleshoot items a bit better. I completely erased my drive, have a new installation of OS X 10.10.4 and I do have this problem now. I have been running in NVIDIA OpenCL GPU acceleration. It's OK.

Thanks,

Kevin

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Jul 08, 2015 0
Engaged ,
Jul 10, 2015

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Thanks for the reply Kevin.

Unfortunately down-grading to MacOS 10.8.5 is not an option, as there are many applications that require 10.9 or 10.10.

For now, using OpenCL in Premiere works fine. It's definitely not as fast or stable as using FCPX with the exact same media - but it does the job.

Hopefully Adobe can work with Apple to fix this issue in the future. It's obvious that Apple changed something in 10.9 that broke CUDA for Adobe apps, but given that Blackmagic has found workarounds, and CUDA works perfectly fine in Resolve - I'm sure Adobe can too if they dig deep enough.

We also use Premiere on Windows, and you're right - we have no issues with CUDA on the PC side of things - however there are many times where my laptop will outperform a very highly spec'ed Z840, so Mac vs PC always has it's pro's and con's.

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Jul 10, 2015 0
Adobe Community Professional ,
Jul 08, 2015

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Check out the Tweaker's Page ...

Tweaker's Page ...

http://ppbm7.com/index.php/tweakers-page

Though some content's been there for awhile, the most recent is only weeks old. So it's very useful, AND ... based off hard data using logging programs on specific test renders through thousands of machines now. nVidia/CUDA are still generally beating AMD/OpenCL, but not by as much as they used to. I'm looking forward to getting both up to total snuff ... a lot of generally "hot" AMD cards are less costly than the nVidia "comparable" cards.

Also ... ask this on the Adobe video program's Hardware forum ...

Hardware Forum ...

https://forums.adobe.com/community/premiere/hardware_forum

Neil

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Jul 08, 2015 0
New Here ,
Jan 18, 2016

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‌hi i bought amd firepro w7100 and its not working in realtime when i using osmo 4k footage to edit. The rendering in timeline is also slow.. Do anyone know how to fix it? How do i know if im using the latest OPEN CL? What is the latest OPENCL for adobe CC vers?where can i download it?

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Jan 18, 2016 0
Adobe Employee ,
Jan 18, 2016

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Hi Mohd,

hi i bought amd firepro w7100 and its not working in realtime when i using osmo 4k footage to edit. The rendering in timeline is also slow.. Do anyone know how to fix it? How do i know if im using the latest OPEN CL? What is the latest OPENCL for adobe CC vers?where can i download it?

In Project Settings > General, can you set GPU Acceleration to OpenCL?

Thanks,
Kevin

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Jan 18, 2016 0
New Here ,
Jan 19, 2016

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tq kevin i done it already however the 4k footage that i put just 1 optical flare effect  its still lagging when i playback in adobe premier cc ...is there any new update or software that i need to download to keep my editing more faster that i should download?

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Jan 19, 2016 0
New Here ,
Apr 06, 2016

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This is not a good test, as nVidia doesn't really do well with OpenCL, if you tested the nVidia CUDA performance to a comparable AMD cards OpenCL performance I would understand your concern.
Also to the Adobe staff, does anybody know if you guys have got OpenCL performance on par or better than CUDA performance yet? You guys might need to catch up to Apple's FCPX in that regard, and the only way you can do it is to stop favoring CUDA and be competitive with OpenCL performance, specifically on the MacPro and other AMD based Macs and PC's.  You could potentially really kick Apples butt in this area.

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Apr 06, 2016 0
Explorer ,
Jun 02, 2016

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Why would people who work on Windows/Linux with CUDA have to suffer because of Mac people and their choice to invest into OpenCL?

CUDA is still faster than OpenCL on comparable GPUs and what's more important is a lot easier to implement than OpenCL. And that's probably why Adobe favors it along side every GPU renderer out there as well as Resolve and SCRATCH to name the few.

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Jun 02, 2016 0
Community Beginner ,
Sep 14, 2016

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vladi013​ There is no reason for Adobe to abandon CUDA, however they need to remember that Macs no longer can be equipped with CUDA cards. Believe me, we've tried! We tested placing an Nvidia CUDA card in a PCIe Thunderbolt expansion chassis connected to our test MacPro, and the CUDA chip was not recognized by Premiere, so the CUDA option was not available. Therefore, anyone with a recent model MacPro won't be able to install a CUDA card. To my knowledge, CUDA hardware acceleration does not run on non-Nvidia hardware; it requires a CUDA chip. From Nvidia website: "With the CUDA Toolkit from NVIDIA, you can accelerate your C or C++ code by moving the computationally intensive portions of your code to an NVIDIA GPU."

Therefore, Adobe must continue to develop their software to run using OpenCL as well as CUDA; that's why there's a little menu to choose that.

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Sep 14, 2016 0
Adobe Community Professional ,
Sep 14, 2016

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This is one of the reasons a number of post-houses are moving to more PC-based bays. Less cost for equivalent-capable machines, and they run with the Adobe products better. Mac ... seems a bit less interested in their desktop computer clients than would have been expected in the past. Other than getting gobs of money for machines that the CEO hasn't a clue why someone would buy in the first place.

That all said ... I do understand the pain & frustration involved when one is so heavily comfortable and experienced with a vendor's setup/system, and ... they change it, saying essentially ... too bad. Seems a common occurrence these days.

Neil

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Sep 14, 2016 0
New Here ,
Dec 14, 2017

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I'm bored in bed and just had to sign-up to these forums as after reading Vladdies thought process on this thread.

So you are saying that it is the the users of OSX products (or possibly Apple) are the ones making it hard by embracing OpenCL?

OpenCL:

Made for everyone, Not locked down to a particular platform, AMD video cards, OSX, Linux, Unix, Solaris, IBM, FreeBSD, Intel, AMD, Samsung and maybe even BeOS!

It's generally provides superior acceleration performance then Cuda could provide back when nVidia was shunning OpenCL in favour of Cuda in most regards. Which is seen strongly in programs like OpenCL performance in high profile movie studios and VFX like in FCPX , AVID and in house tools

CUDA:

Controlled and strong-armend their proprietary tech for the first 4 years until they noticed the competition embracing and out performaning CUDA at the Hollywood filming VFX level and with FCPX and AVID .

Time for a quick lesson, OpenCL is a primary open source API and you want CUDA to be the sole provider of this tech and somehow blame it on MAC? hmmm

BTW nVidia Cuda works perfectly fine in our office, an in fact we can run Cuda and OpenCL at one on the same program (ever since nVidia decided to embrace OpenCL).

Seems your not so aware of the real world, off the top of my head the VFX industry, Gaming Ubisoft (CentOS + OSX), GameLoft (Debian), Epic (CentOS), Autodesk (OSX and CentOS) and even the most advanced VFX program available is developed here with OSX and a custom Linux Distro based off CentOS...

Flame | Visual Effects (VFX) Software | Autodesk

Quicksilver Scene HD - X Men Apocalypse 2016 - YouTube   --  Scene Composited here with extra help from Ubisoft and Mel's Studios via MacOSX, Linux and inhouse tools)

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Dec 14, 2017 0