Blackmagic Forum

Hi to all of you!

Trying to process dalies on resolve lite 10.1.4. windows 7. The equipment has 2 GPU, and reslove be able to recognise both.

-Nvidia GTX 550TI - GUI
-Nvidia GTX 780TI

Despite this the average delivery output speed is in between 20-22 FPS. Alexa 2k prores.mov to DNXhd36. No any LUT, just meteadata burn in. The source material is on 20TB raid 5 strage connected via usb3/eSATA. The output HDD is a built in RAID 0 SATA 3.

Considering the above described, the output speed is very poor... during the render, the GUP monitoring service shows, the -Nvidia GTX 780TI GPU usage is just only 10%.

Any of you as any idea, how can i speed up the delivery process?

Thank you

Resolve lite don't suppprt dual gpus. Only full version support it.

Lähetetty minun GT-I8190 laitteesta Tapatalkilla

Oskari Mörsky wrote:Resolve lite don't suppprt dual gpus. Only full version support it.

Resolve Lite supports 1 GPU AND 1 GUI card. That is the set-up entos says he has.

entos, can you check your system prefs in Resolve. Does it see the 780 card as a GPU?

Are there any displays connected to the 780?

Then can you test the system without the 550 install and the display connected to the 780 to see if the performance differed.

adamroberts wrote:entos, can you check your system prefs in Resolve. Does it see the 780 card as a GPU?

Are there any displays connected to the 780?

Then can you test the system without the 550 install and the display connected to the 780 to see if the performance differed.

Ha Adam! Thank you for your reply!

- The resolve doesn't say "exactly" for the 780 card as a GPU. It is only shows for the 550 is the GUI. like this:

picture share
- No, there are no any display connected to the 780card.

- I have tried to use the 780card standalone, same very poor frame rate delivery result.

If Any of you has any idea how to solve it, please don't hesitate to share.

Thank you!

From that screen shot Resolve is using the 780 for GPU processing.

What motherboard are you using? Is the GPU in the fastest PCI slot?

I'm not a windows user so not sure what else could be the issue.

adamroberts wrote:From that screen shot Resolve is using the 780 for GPU processing.

What motherboard are you using? Is the GPU in the fastest PCI slot?

I'm not a windows user so not sure what else could be the issue.

Hi Adam!

Thank you for the reply!

The motherboard is: ASUS P8Z77-V. Actually i don't even know there is a difference in between PCI slots. According this overwiev: http://www.asus.com/Motherboards/P8Z77V/
The 780 is placed in that PCI Express slot witch is closer to the "TPM HEADER"... So do you suggest to swap them?

Thanks.

Ok. Similar board to what is in my Hackintosh.

That board, like all Z77 boards, can only run one card at x16. When you add a 2nd card the board drops those 2 slots to x8.

Running a single card in the fastest slot will often give you the best performance.

The fastest slot is the 2nd slot. The long dark blue one. Put the 780 in there.

Test the performance. Any improvement?

Then insert the 560 into the 5th slot. The long white one. The is the other fast slot. When these 2 are used they will run at x8.

Connect your display to the 560 and test the performance.

Any improvement?

adamroberts wrote:Ok. Similar board to what is in my Hackintosh.

That board, like all Z77 boards, can only run one card at x16. When you add a 2nd card the board drops those 2 slots to x8.

Running a single card in the fastest slot will often give you the best performance.

The fastest slot is the 2nd slot. The long dark blue one. Put the 780 in there.

Test the performance. Any improvement?

Then insert the 560 into the 5th slot. The long white one. The is the other fast slot. When these 2 are used they will run at x8.

Connect your display to the 560 and test the performance.

Any improvement?

I would recommend just using the 780 in the x16 slot. Lose the 560.

Also, make sure your Windows Graphics settings are set to recommended for performance.

Assuming you don't have any other cards in your system then you could put the 780 in the top Blue 16x slot and the 550 in the bottom Black 4xslot. This will allow the 780 to have all 16 lanes from the CPU and the 550 will use the 4 lanes on the chipset

Adbear wrote:Assuming you don't have any other cards in your system then you could put the 780 in the top Blue 16x slot and the 550 in the bottom Black 4xslot. This will allow the 780 to have all 16 lanes from the CPU and the 550 will use the 4 lanes on the chipset

Hi Adbear!

Thank you for your advice. I did as you described, but no any improvement happened.
Also tried the gray slot on the main board as well, but still the same poor fps rate computed. According the background monitoring tool, the 780ti card doesn't do any compute, when the resolve is rendering. It is still use the CPU.

Any advice? Or Does anybody has 2 GPU (maybe similar as mine), with success?

I updated the resolve to the latest version, but no any success.

Thank you!

Did you try running a single card in the top slot?

sean mclennan wrote:Did you try running a single card in the top slot?

Yes i did, but no any improvement on WIN7.

But, after one week research: The slow rendering problem occurs when a the source material, is prores.
Other sources (DnxHd), rendering around 75Fps. So i built a timeline with mixed sources, to check whats going on.
According the windows process monitor It is clearly show, when the resolve starts render the prores file, suddenly the Quicktime.exe starts working, and from that moment the CPU takes over the process from the GPU, and the whole rendering slow down.

Just for curiosity i quickly made a mackintosh on the same Hardware, test how does the 780 ti works on. On Mountain Lion with 2 GPU it goes around 42 FPS even the hacked ML can't be able to recognise the 780 ti. (Allegedly Mavericks does, but i failed to install it)
What do yo think is 42FPS is the top or it can be more if the card and drivers installed properly?

So, thank you for you help. If any of you has any experience with 780 ti, both MAC and WIN please don't hesitate to share it.

How is the Ti treating you?