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[DF] Massive speed increase, if you have the ram
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Moderator Emeritus  Join Date: Dec 2000
Location: College Park, MD
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ok, there's a DF speed tweak since the new client today, if you have the ram.
It'll double the speed 
just add a -rt to your foldit file
foldtrajlite -f protein -n native -rt
note that it will use a lot more ram, as in about 120MB right now.
The formula for ram use is
25 + .64n Megabytes, where n is the number of residues in the protein
So if you have 256MB of ram or more, you might want to run it.
This should speed up the team a lot, and hopefully we'll all have enough ram and update, while other teams won't.
And I'm still accepting donations of 256MB DDR2100 ram sticks 
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Dedicated MacNNer
Join Date: Sep 2001
Location: California
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Offline
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I've got a gig of ram in the dualie so I thought I'd give it a try. I want to see how much better it does so I've given the -rt option to one client and not the other. Maybe this isn't the best way to test though. Maybe run both w/o for a day and both with for a day. Hmmm ...
Anyway, I can't say I'm seeing double the speed. The client with -rt has processed 4875 structures and the one without has done 3325 in about 3.25 hours.
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Moderator Emeritus Join Date: Dec 2000
Location: College Park, MD
Status:
Offline
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</font><blockquote><font size="1" face="Geneva, Verdana, Arial, sans-serif">quote:</font><hr /><font size="1" face="Geneva, Verdana, Arial, sans-serif">Originally posted by enola:
<strong>I've got a gig of ram in the dualie so I thought I'd give it a try. I want to see how much better it does so I've given the -rt option to one client and not the other. Maybe this isn't the best way to test though. Maybe run both w/o for a day and both with for a day. Hmmm ...
Anyway, I can't say I'm seeing double the speed. The client with -rt has processed 4875 structures and the one without has done 3325 in about 3.25 hours.</strong></font><hr /></blockquote><font size="1" face="Geneva, Verdana, Arial, sans-serif">Ok, if your ram has the bandwith to supply the proc, it's fast.
It's darn fast on my DDR athlon systems.
On a dual mac, it's bandwith starved, so it won't speed up as much.
Forgot about that until now.
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Moderator Emeritus Join Date: Dec 2000
Location: College Park, MD
Status:
Offline
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Ok, improvement is highest for athlons with DDR (see my production ), but everyone who can, do it.
If you can't, upgrade so you can.
This shows how much the G4 is bandwith starved, but it's still faster.
Notice how I've jumped in production, and I still have another system to switch over, and another system without enough ram (and it's an athlon with DDR)
Everyone, please use it if you can.
A lot of other teams will be, and we need to match their production increase.
--Scott
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Moderator Emeritus Join Date: Dec 2000
Location: College Park, MD
Status:
Offline
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Come on people, tweak, tweak, tweak
We need every bit we can get!
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Mac Enthusiast
Join Date: Mar 2001
Location: Minneapolis, MN
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I'm tweakin' as fast as I can, captain!
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Crunch Something
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<Electronik>
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Wow, with that tweak dfold is crazy fast on my machine. I just added my Athlon 1800+ XP w/512DDR machine to the team, so hopefully that will give us a boost.
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