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Memory as you need to enable multiprotsessings?

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Dmitry Sokolov
Memory as you need to enable multiprotsessings?
on Aug 10, 2011 at 4:30:59 pm

With 2 GB ram, I can
not turn into
multiprotsesing cs5. 3
GB ram will be enough
to turn
multiprotsessings?


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Michael Szalapski
Re: Memory as you need to enable multiprotsessings?
on Aug 10, 2011 at 4:50:29 pm

3 GB is nowhere near enough for multiprocessing.
For multiprocessing, you want at least 2GB of RAM per core you're using. PLUS at least 1 GB of RAM reserved for other applications and your operating system.

- The Great Szalam
(The 'Great' stands for 'Not So Great, in fact, Extremely Humble')

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.


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Dave LaRonde
Re: Memory as you need to enable multiprotsessings?
on Aug 10, 2011 at 4:52:17 pm

[Dmitry Sokolov] "3 GB ram will be enough to turn multiprotsessings?"

No. I would not use multiprocessing with anything less than 8 GB. A very rough rule is that you need at least 2GB per processor.

I have a dual quad-core machine with 8GB at work. I don't use multiprocessing.
I have a dual quad-core machine with 24 GB at home, and I use multiprocessing on it.

You may find this helpful:

http://forums.adobe.com/thread/543440

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Dmitry Sokolov
Re: Memory as you need to enable multiprotsessings?
on Aug 10, 2011 at 5:17:10 pm

http://help.adobe.com/en_US/aftereffects/cs/using/WS9F936D13-E76A-41e4-BF8F... Written for sd 1gb
optimally, so that a 2
core 3 gb ram
theoretically should be
enough


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Dave LaRonde
Re: Memory as you need to enable multiprotsessings?
on Aug 10, 2011 at 5:27:39 pm

Theoretically, yes. But would you like AE to work well? For any practical use, I wouldn't dream of running AE with anything less than 6GB.

Face it: you need more RAM.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Kevin Camp
Re: Memory as you need to enable multiprotsessings?
on Aug 10, 2011 at 8:41:00 pm

if you are only working in sd, then you may be able to use less than 1gb per core... i work mainly in 720p and use 1gb of ram per core (though i have 16gb of ram and 16 cores -- 8 cores are for ae, 8 for other apps, 8gb for other apps).

however, 3gb would still only allow you to use 2 cores, and leaving only 1-1.5gb of ram for a 64-bit os will probably still hurt your performance when the os runs out of ram (as i mentioned, i leave 8gb for the os). when the os runs out of ram, it starts to cache to disk, when that happens, performance will drop significantly.

you'll probably notice this more often with longer renders, before i had increased the ram for other apps to 8gb, i had noticed performance decreases at about 5-10 minutes into a render that coincided with high disk activity. after increasing that to 8gb, i rarely see that happen.

Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW


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