Cubix, Quadro 4000, GTX480 performance hit

[Margus Voll]

swap 120 with 4000 and lose 120 and test like so?

I have to test some more but i saw something like that when i had 120 4000 and 470 on my machine.

Also try to put Cubix HIC in slot 1.

Also if that did not help try to rip all cards one by one that you do not need for resolve.

They may also be conflicting.

—

Margus

https://iconstudios.eu

[Rohit Gupta]

Try switching monitoring to 8-bit. The 2008 Mac pro needs that setting.

[Perry Trest]

I have been using the 8bit setting. Should have mentioned that in my first post. Thanks for the trouble shooting suggestions.

Perry Trest
POSTDIGITAL, Inc.

MacPro 8core 2.8Ghz
8GB RAM
Slot 1 = GT120
Slot 2 = Cubix HIC
Slot 3 = DeckLink SDI
Slot 4 = Nitris DX HIC
Internal 6TB software RAID-0
Tangent Wave
HP DreamColor

Cubix Desktop4
Slot1= Quadro 4000
Slot2= Empty
Slot3= GTX480
Slot4= Empty

[David Pirinelli]

Try running CUDA-Z to see what the throughput of the cards is.

You can also connect a display to them and run OpenGl View test.

It will show if they are being throttled.

[Perry Trest]

Hi Dave,
The GTX480 is keeping me warm this winter. Thank you.

Running Cuda-Z, what am I looking for?
There’s a lot of info there. Not sure what to look for to determine throughput.

Perry Trest
POSTDIGITAL, Inc.

MacPro 8core 2.8Ghz
8GB RAM
Slot 1 = GT120
Slot 2 = Cubix HIC
Slot 3 = DeckLink SDI
Slot 4 = Nitris DX HIC
Internal 6TB software RAID-0
Tangent Wave
HP DreamColor

Cubix Desktop4
Slot1= Quadro 4000
Slot2= Empty
Slot3= GTX480
Slot4= Empty

[Joseph Owens]

I thought the PCIe bus was throttled to the lowest common bit rate for the slowest card. It might be the Q4000 that’s pulling everything down. I also notice you had an ATTO card in the first iteration.

Like you, I’m also wondering if I have a slow disk or something, because my primary system doesn’t seem particularly quick, even with two 480’s in a Cubix. I get better performance from my AVID/Mac with a single Q4000 in slot 2 (ATI5770 for UI).

I don’t think I’m entirely familiar with what the .kext deletion is supposed to accomplish…?

jPo

You mean “Old Ben”? Ben Kenobi?

[Perry Trest]

My first effort was to pull the ATTO card, thinking it may be weighing down the GPUs but that didn’t make a difference. According to the config. guide, multiple Q4000 cards are supported in the Cubix. I’ll pull the Q4000 to see if I gain any performance.

I opened a different project with ProRes422HQ media and I get 24fps with multiple nodes there, so now I’m wondering if the ProRes4444 media is problematic for my 2008 MacPro. Although they play perfect in QuickTime player so I’m not sure why Resolve is having a hard time pushing them through.

For some reason (macvidcards can tell us), the AGPM.kext file throttles down the Mac-flashed GTX480 and its removal is recommended for optimum performance.

Perry Trest
POSTDIGITAL, Inc.

MacPro 8core 2.8Ghz
8GB RAM
Slot 1 = GT120
Slot 2 = Cubix HIC
Slot 3 = DeckLink SDI
Slot 4 = Nitris DX HIC
Internal 6TB software RAID-0
Tangent Wave
HP DreamColor

Cubix Desktop4
Slot1= Quadro 4000
Slot2= Empty
Slot3= GTX480
Slot4= Empty

[Joseph Owens]

Something is also lingering about the flashed 480s being clocked differently depending on whether they’re for inboard PCIe or outboard Cubix hosting.

However, I get large numbers in CUDA-Z. Its just laggy with an external eSATA drive ( and very crashy when trying to navigate through the timeline). Encouragingly, NR doesn’t seem to slow it down at all.

I also get a PCI “error when gathering data” if I look in “About this MAC”…. Apple really doesn’t like anybody going off-book and improv-ing.

jPo

You mean “Old Ben”? Ben Kenobi?

[Perry Trest]

Removed Cubix from the system, put Q4000 back in slot two of the MacPro, fps performance is unchanged. Tried various combinations of card placement with and without the Cubix and the system performs the same with the ProRes4444 media. If QuickTime player will play a clip at 24fps, would you assume that the same clip would play in Resolve at 24fps with no nodes?

Perry Trest
POSTDIGITAL, Inc.

MacPro 8core 2.8Ghz
8GB RAM
Slot 1 = GT120
Slot 2 = Cubix HIC
Slot 3 = DeckLink SDI
Slot 4 = Nitris DX HIC
Internal 6TB software RAID-0
Tangent Wave
HP DreamColor

Cubix Desktop4
Slot1= Quadro 4000
Slot2= Empty
Slot3= GTX480
Slot4= Empty

[Eric Johnson]

You started with this, right?
Mac Pro
Slot 1 = GT120
Slot 2 = Cubix HIC
Slot 3 = DeckLink SDI
Slot 4 = Nitris DX HIC

Cubix Desktop4
Slot1= Quadro 4000
Slot2= GTX480
Slot3= Empty
Slot4= ATTO UL5D

What about this?
Mac Pro
Slot 1 = Quadra
Slot 2 = Cubix HIC
Slot 3 = Atto
Slot 4 = Nitris DX HIC

Cubix Desktop4
Slot1= GTX
Slot2= Empty
Slot3= Decklink
Slot4= Decklink HDMI (only if you benifit from it, otherwise empy)