FORUMS: list search recent posts

32 cores,128GB RAM and 5 fps?

COW Forums : DaVinci Resolve

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
Zeek Earl
32 cores,128GB RAM and 5 fps?
on Aug 18, 2013 at 9:47:00 pm

I hope I'm just a newb and there's an easy answer to my situation, but I can't figure it out.

I recently was given a Dell computer with the following specs (previously I've only used Macs):
- Xeon CPU-2680 @ 2.7 ghz (2 processors, 32 cores)
- 128 GB RAM
- 64 bit operating system
- Nvidia Quadro 5000
- Nvidia Tesla C2075

I've been shooting with the Black Magic Cinema Camera in RAW.

The problem is that Da Vinci Resolve won't typically render or play back above 5 or 6 fps. Everyone once in awhile it will jump up to 20 or 30 fps for a brief period of time.

Right now I'm rendering my raw footage into QT Uncompressed 10 bit and it won't budge above 5 fps.

According to my task manager it's only using between 0-5% of my CPU power and 13GB of RAM at any given moment. It seems to fluctuate between using 1 to 2 cores.

Why won't Resolve use more power?

I would really appreciate any help on this - thanks in advance


Return to posts index

Eric Hansen
Re: 32 cores,128GB RAM and 5 fps?
on Aug 18, 2013 at 10:25:48 pm

what's your storage? sounds like a drive speed bottleneck.

e

Eric Hansen
Production Workflow Designer / Consultant / Colorist / DIT
http://www.erichansen.tv


Return to posts index

Zeek Earl
Re: 32 cores,128GB RAM and 5 fps?
on Aug 18, 2013 at 10:31:38 pm

It's a "4 TB" Western Digital 7200RPM harddrive formatted NTFS. Right now I'm exporting to the same hard drive that the source files are on, is that a problem?


Return to posts index


Eric Hansen
Re: 32 cores,128GB RAM and 5 fps?
on Aug 18, 2013 at 11:27:50 pm

that's your problem. you're trying to read and simultaneously write about 150MB/s to a single hard drive. you need a decent sized RAID if you want both source files and renders on the same volume.

even just changing your source and target to 2 different single drives will speed it up quite a bit. but you want a RAID if you want to maximize your other hardware.

e

Eric Hansen
Production Workflow Designer / Consultant / Colorist / DIT
http://www.erichansen.tv


Return to posts index

Zeek Earl
Re: 32 cores,128GB RAM and 5 fps?
on Aug 18, 2013 at 11:41:10 pm

Ah, Thanks so much - I will try that!

One quick follow up question: I've also noticed a significant variation in the fps when Resolve is reading files. Does resolve have to render in order for basic playback as well with the same hard drive limitations?


Return to posts index

Peter Chamberlain
Re: 32 cores,128GB RAM and 5 fps?
on Aug 20, 2013 at 12:47:08 pm

One drive is not enough. Try dual ssd or multiple drives.
Peter


Return to posts index


Zeek Earl
Re: 32 cores,128GB RAM and 5 fps?
on Aug 19, 2013 at 12:19:47 am

I just tried another export - this time exporting to a different hard drive, external via USB 3.

The fps is more or less the same, maybe a 1 or 2 higher on average.

Is my source hard drive just bad?


Return to posts index

Laco Gaal
Re: 32 cores,128GB RAM and 5 fps?
on Aug 19, 2013 at 5:38:34 pm

could be. But to know it better, shoot some Prores with the BMC, and try those clips in Davinci!


Return to posts index

Eric Hansen
Re: 32 cores,128GB RAM and 5 fps?
on Aug 19, 2013 at 5:44:41 pm

are your nVidia drivers up to date? with these cards, Resolve should be flying. are they correctly configured in Resolve? I assume that you're using the paid and not LITE version of Resolve to use multiple GPU cards

e

Eric Hansen
Production Workflow Designer / Consultant / Colorist / DIT
http://www.erichansen.tv


Return to posts index


EricBowen
Re: 32 cores,128GB RAM and 5 fps?
on Aug 21, 2013 at 6:30:46 pm

I would really suggest looking at SSD drives. Crucial has 960GB drives that are really cheap for the size. Use the 4TB drive as storage and SSD's as work drives. The other option would be getting another 4TB drive and raid 0 that. Just keep the raw media and database backed up.

Eric-ADK
Tech Manager


Return to posts index

Zeek Earl
Re: 32 cores,128GB RAM and 5 fps?
on Aug 22, 2013 at 6:54:17 am

Sounds like a good idea. Thanks everyone!


Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2017 CreativeCOW.net All Rights Reserved
[TOP]