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Real time playback issue with GTX 285 & GT 120

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Spazz Nielsen
Real time playback issue with GTX 285 & GT 120
on Mar 19, 2012 at 4:42:13 pm

I have installed a NVIDIA GeForce GTX 285 and a NVIDIA GeForce GT 120 in my Mac Pro to be able to run DaVinci.

However, my playback is far from real time. With no correction layer added my playback time is roughly 16 fps for a 1080p clip and as soon as I start to add even simple corrections I'm down to 8 fps and less. What can be wrong?


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Ola Haldor Voll
Re: Real time playback issue with GTX 285 & GT 120
on Mar 19, 2012 at 4:59:19 pm

Exactly what kind of Mac Pro is it?
What kind of files are you playing?
Prores?
Image sequence?


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Dan Moran
Re: Real time playback issue with GTX 285 & GT 120
on Mar 19, 2012 at 5:16:04 pm

Make sure you don't have your monitor plugged into the GTX card also.

Dan Moran
DaVinci Application Specialist
Blackmagic Design EMEA


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Spazz Nielsen
Re: Real time playback issue with GTX 285 & GT 120
on Mar 20, 2012 at 10:45:50 am

The monitor is plugged into the GT 120.


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Spazz Nielsen
Re: Real time playback issue with GTX 285 & GT 120
on Mar 20, 2012 at 10:44:41 am

A 2.66 GHZ Quad-Core Intel Xeon with 8 GB 1066 MHz DDR3 ram. I'm grading ProRes 422 files.


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Rohit Gupta
Re: Real time playback issue with GTX 285 & GT 120
on Mar 21, 2012 at 1:02:44 am

"A 2.66 GHZ Quad-Core Intel Xeon with 8 GB 1066 MHz DDR3 ram. I'm grading ProRes 422 files."

Is it a single Quad, or dual Quad core?

Can you try switching the video monitoring to 8-bit in config page?


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Joseph Owens
Re: Real time playback issue with GTX 285 & GT 120
on Mar 19, 2012 at 7:40:25 pm

[Spazz Nielsen] "What can be wrong?
"


How many GPUs is Resolve reporting?

jPo

You mean "Old Ben"? Ben Kenobi?


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Dmitry Kitsov
Re: Real time playback issue with GTX 285 & GT 120
on Mar 19, 2012 at 7:45:51 pm

In this configuration it will report only one.


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Joseph Owens
Re: Real time playback issue with GTX 285 & GT 120
on Mar 19, 2012 at 8:08:53 pm

It will probably only report one even if it is using the second GPU as a render device, as that is how Resolve counts things. The main thing is to free up the second GPU, and a common error is connecting it to a monitor. Does it ever warn that it is also using the GUI card as a media processor?

jPo

You mean "Old Ben"? Ben Kenobi?


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Spazz Nielsen
Re: Real time playback issue with GTX 285 & GT 120
on Mar 20, 2012 at 10:47:10 am

1 GPU is reported at the About DaVinci Resolve page.


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Dwaine Maggart
Re: Real time playback issue with GTX 285 & GT 120
on Mar 20, 2012 at 4:39:28 pm

What MODEL # MacPro do you have? A 3,1? Do you only have a single CPU? As Joseph asked, when you launch Resolve, do you get any warnings or messages, and if so, what exactly?

Dwaine Maggart
Blackmagic Design DaVinci Support


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Spazz Nielsen
Re: Real time playback issue with GTX 285 & GT 120
on Mar 20, 2012 at 5:40:53 pm

A 2.66 GHZ Quad-Core Intel Xeon with 8 GB 1066 MHz DDR3 ram. I have no warnings when starting up DaVinci.


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Dwaine Maggart
Re: Real time playback issue with GTX 285 & GT 120
on Mar 20, 2012 at 5:56:50 pm

Since you can't provide a Mac Model #, can we assume this is a Hackintosh of some sort?

Dwaine Maggart
Blackmagic Design DaVinci Support


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Spazz Nielsen
Re: Real time playback issue with GTX 285 & GT 120
on Mar 20, 2012 at 6:14:06 pm

No, but Im not sure what the Model # is. Heres the Hardware overview:


Model Name: Mac Pro
Model Identifier: MacPro4,1
Processor Name: Quad-Core Intel Xeon
Processor Speed: 2.66 GHz
Number Of Processors: 1
Total Number Of Cores: 4
L2 Cache (per core): 256 KB
L3 Cache: 8 MB
Memory: 8 GB
Processor Interconnect Speed: 4.8 GT/s
Boot ROM Version: MP41.0081.B07
SMC Version (system): 1.39f5
SMC Version (processor tray): 1.39f5
Serial Number (system): CK9160474PD
Serial Number (processor tray): J59100AZ74MFC
Hardware UUID: 4A1460EC-2C8E-5395-8BD7-1C1308E49AF8


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Dwaine Maggart
Re: Real time playback issue with GTX 285 & GT 120
on Mar 20, 2012 at 6:40:23 pm

Great, so it's a 4,1 MacPro. In Resolve, most compressed file encoding/decoding is done on the CPU(s). That includes ProRes. Since you only have 1 CPU, that might impact ProRes decoding speed, but not like what you are reporting, I don't think.

Since you are in the Mac System Info area, could you please show us what it says in the Graphics/Displays section, and the PCI Cards section?

Dwaine Maggart
Blackmagic Design DaVinci Support


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Spazz Nielsen
Re: Real time playback issue with GTX 285 & GT 120
on Mar 20, 2012 at 7:41:53 pm

Sure.

Graphics/Displays:

NVIDIA GeForce GT 120:

Chipset Model: NVIDIA GeForce GT 120
Type: GPU
Bus: PCIe
Slot: Slot-2
PCIe Lane Width: x16
VRAM (Total): 512 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0640
Revision ID: 0x00a1
ROM Revision: 3386
Displays:
DELL 2407WFP:
Resolution: 1920 x 1200 @ 60 Hz
Pixel Depth: 32-Bit Color (ARGB8888)
Display Serial Number: UY54571C0WMS
Main Display: Yes
Mirror: Off
Online: Yes
Rotation: Supported
Display Connector:
Status: No Display Connected

NVIDIA GeForce GTX 285:

Chipset Model: NVIDIA GeForce GTX 285
Type: GPU
Bus: PCIe
Slot: Slot-1
PCIe Lane Width: x16
VRAM (Total): 2048 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x05e3
Revision ID: 0x00a1
ROM Revision: By MacVidCards
Displays:
Display Connector:
Status: No Display Connected
Display Connector:
Status: No Display Connected



PCI Cards:


NVIDIA GeForce GT 120:

Name: NVDA,Display-B
Type: Display Controller
Driver Installed: Yes
MSI: Yes
Bus: PCI
Slot: Slot-2
Vendor ID: 0x10de
Device ID: 0x0640
Subsystem Vendor ID: 0x106b
Subsystem ID: 0x0010
ROM Revision: 3386
Revision ID: 0x00a1
Link Width: x16
Link Speed: 5.0 GT/s



NVIDIA GeForce GTX 285:

Name: NVDA,Display-B
Type: Display Controller
Driver Installed: Yes
MSI: Yes
Bus: PCI
Slot: Slot-1
Vendor ID: 0x10de
Device ID: 0x05e3
Subsystem Vendor ID: 0x3842
Subsystem ID: 0x0010
ROM Revision: By MacVidCards
Revision ID: 0x00a1
Link Width: x16
Link Speed: 5.0 GT/s



pcibdbd,a11a:

Type: Video
Driver Installed: Yes
MSI: No
Bus: PCI
Slot: Slot-3
Vendor ID: 0xbdbd
Device ID: 0xa11a
Subsystem Vendor ID: 0xbdbd
Subsystem ID: 0xa11a
Revision ID: 0x0000
Link Width: x4
Link Speed: 2.5 GT/s


I have another GT 120 card I can try moving to the machine as well if this will help? Think I'll need to remove my Decklink card to free up a slot for it though.


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Dwaine Maggart
Re: Real time playback issue with GTX 285 & GT 120
on Mar 20, 2012 at 8:00:21 pm

That all looks fine. I can't see any reason why your system is running as poorly as you state. What version of OSX are you using?

Look in your Mac System Preferences, and open the CUDA icon. Tell us what version of CUDA driver is installed, and what version of GPU driver is installed, including the number at the end in parentheses.

Dwaine Maggart
Blackmagic Design DaVinci Support


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Spazz Nielsen
Re: Real time playback issue with GTX 285 & GT 120
on Mar 20, 2012 at 8:08:10 pm

The machine is running Mac OS X 10.6.8 - Snow Leopard.

Cuda Driver Version: 4.0.19
GPU Driver Version: 1.6.37.0 (256.02.25f01)


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Dwaine Maggart
Re: Real time playback issue with GTX 285 & GT 120
on Mar 20, 2012 at 9:02:20 pm

That looks good as well. I'm pretty baffled.

My only other thought is that maybe your GTX-285 card is in distress.

You can download the cuda-z test here:

http://sourceforge.net/projects/cuda-z/files/cuda-z/Beta/CUDA-Z-0.6.133-SVN...

Running this will tell you if the card is functioning OK. Make sure you select the 285 card and not the 120 card when you run it.

Looks like you got your GTX-285 card from MacVidCards. You might contact Dave and see if he has any thoughts. He will also know the normal cuda-z results for that card.

Dwaine Maggart
Blackmagic Design DaVinci Support


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Dennis Kutchera
Re: Real time playback issue with GTX 285 & GT 120
on Mar 26, 2012 at 7:48:01 pm

Open up the console app and see if there is an error message that repeats continually. I had some crap app from the Apple App store throwing errors because it could not see a disk it wanted, causing everything to slow down to the point where I could not play Prores LT in real time. Once I fixed the problem, things went back to normal. It affected every app and the OS for speed.

Dennis

Dennis Kutchera
EggStudios.ca


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