Hi Tom,
DCP-o-matic is currently using an open-source CPU-only JPEG2000 encoding
library called OpenJPEG. There are some GPU accelerated ones around, but
they are yet to be integrated into DCP-o-matic. I think speed ups of
factors up to 10 or 20 are not out of the question with such approaches.
Regards,
Carl
On Fri, 1 May 2015, Tom Rovak wrote:
That's why it runs at the speed it does. Fair
enough. Please keep me informed as to any update to that. I have rendered a few 4K
features and it seems to take about
19 - 24 hours on my system. I could really use it to take advantage of GPU processing to
speed it up. I render 4K features from out of Resolve through my GPUs and
for same feature it takes 5 - 6 hours. I am assuming DCPomatic could run as quickly.
While running DCPomatic I would put off rendering other work in fear of bogging
down the GPUs' memory, but if it's not using them...
Thanks
Tom Rovak - Executive Producer / Sr. Colorist / Post Production Supervisor
ROVAK COLORIST SERVICES
A Division Of The Annex Studios
Commercials, Feature Films, Music Videos, Long FormColor Correction, Dailies, Editorial,
Finish/VFX
trovak(a)comcast.net
(815)690-8323
IMDB:
http://www.imdb.com/name/nm1652946/?ref_=rvi_nm
Website / Commercial Reel:
http://colorist-rovak.com/
____________________________________________________________________________________________________________________________________________________________________
From: "Carl Hetherington via DCPomatic" <dcpomatic(a)carlh.net>
To: "carlh net dcpomatic" <DCPomatic(a)carlh.net>
Sent: Friday, May 1, 2015 11:13:38 AM
Subject: Re: [DCP-o-matic] dcpomatic on Raspberry Pi / Raspian
Hi Tom,
At the moment DCP-o-matic makes no use of GPUs for processing. Various
people are working on it, but it is not here yet.
Regards,
Carl
On Fri, 1 May 2015, Tom Rovak wrote:
I have a general question about DCPomatic. I
could not find in my defaults and settings, any kind of setting to ensure it is using my
extra GPUs when trancoding
and
rendering. Does it detect them automatically? or
is there a way to configure them. The reason I ask is because with Davinci Resolve and
Premier I had to initially
configure them to use my additional GPUs.
Tom Rovak - Executive Producer / Sr. Colorist / Post Production Supervisor
ROVAK COLORIST SERVICES
A Division Of The Annex Studios
Commercials, Feature Films, Music Videos, Long FormColor Correction, Dailies, Editorial,
Finish/VFX
trovak(a)comcast.net
(815)690-8323
IMDB:
http://www.imdb.com/name/nm1652946/?ref_=rvi_nm
Website / Commercial Reel:
http://colorist-rovak.com/
___________________________________________________________________________________________________________________________________________________________________
_
From: "Carl Hetherington via DCPomatic"
<dcpomatic(a)carlh.net>
To: "carlh net dcpomatic" <DCPomatic(a)carlh.net>
Sent: Friday, May 1, 2015 5:33:58 AM
Subject: Re: [DCP-o-matic] dcpomatic on Raspberry Pi / Raspian
Hi all,
I had a quick go at building a Raspbian image using qemu but it seems
there is a bug somewhere in it which makes building DCP-o-matic a
challenge. I think we'll have to build Raspbian .debs on a Pi. I've got
a version 1 model which I can try a build on, although it might be slow.
If it turns out that the V2 Pi is a useful platform to run DCP-o-matic on
I'm happy to buy one and put .debs on
dcpomatic.com.
Regards,
Carl
On Fri, 1 May 2015, Carsten Kurz via DCPomatic wrote:
There's one shop on ebay germany currently
selling the PI 2 B for
34,90€. According to ebay he sold 159 during the last hour ;-)
I was about to buy the older B+ anyway for an automation device project,
but as it seems, I just bought a PI 2 B which can serve the same
purpose.
And yes, If someone would upload a workable image to test DCP-o-matic on
it, I would be happy to test it. I don't know if Carl is interested to
have a go on a 'real' PI himself, I would lend it to him for a while.
Maybe Carl is able to weak it a bit himself if he finds the time for it.
- Carsten
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