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You are here: MacNN Forums > Community > Team MacNN > Need some advice on how to get shorter crunch times

Need some advice on how to get shorter crunch times
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Mac Elite
Join Date: Sep 2000
Location: Binghamton, New York, USA
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Jun 30, 2001, 06:02 AM
 
I am getting 20-22 hour work unit crunches on my G4/466 and that seems kind of long. I have 384MB of ram and am running MacOS 9.1. I always launch the application manually and don't rely on the screen saver to kick in. Any suggestions?
2.3Ghz 17" SandyBridge MBP 8GB RAM 7.2k 750GB HD anti-glare display|Dell 2408WFP|64GB iPad2 ATT 3G
     
Addicted to MacNN
Join Date: Jan 2001
Location: The Sar Chasm
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Jun 30, 2001, 08:06 AM
 
I managed to decrease my time by setting the screensaver to go to a blank screen after 1 or 2 minutes, which I don't think it will do if you launch it manually. Basically, the proccessor power that's needed to re-draw the graphics is turned over to data crunching once the screen goes blank, and it works a lot faster.
You can enable the screenaver instantly by throwing the cursor down to the lower left corner (default--you can pick a corner in prefs) whenever you get up from the machine.

Try that, and you should see your times decrease to ten or twelve hours, which is what I get on my Cube 450 (when it's not running RC5)

CV

When a true genius appears in the world you may know him by this sign, that the dunces are all in confederacy against him. -- Jonathan Swift.
     
Administrator
Join Date: May 2000
Location: California
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Jun 30, 2001, 12:06 PM
 
I get better time than that on my G4 350. And I use it as an application too. Windowshade the application. Letting it run "open" slows it down a lot.

Get in the habit of leaving the windowshaded application in the foreground whenever you leave your computer. When in the background, the application only grabs 5% or so of the CPU.

Use a RAM disk. And if you crash a lot, get in the habit of backing up that RAM disk. There is little that is more frustrating than wasting hours finishing a unit you have already done.
     
Mac Elite
Join Date: Sep 2000
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Jul 1, 2001, 07:16 AM
 
thanks for the suggestions guys, I'll give it a try.
2.3Ghz 17" SandyBridge MBP 8GB RAM 7.2k 750GB HD anti-glare display|Dell 2408WFP|64GB iPad2 ATT 3G
     
Mac Elite
Join Date: Sep 2000
Location: Binghamton, New York, USA
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Jul 3, 2001, 10:57 AM
 
I tried keeping the Seti window in window shade mode and it shaved about 10 hours off my crunch times. Thank guys, the advice really helped!
2.3Ghz 17" SandyBridge MBP 8GB RAM 7.2k 750GB HD anti-glare display|Dell 2408WFP|64GB iPad2 ATT 3G
     
   
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