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Postby dougsherwood1320 » Tue Dec 02, 2003 5:31 am

This has probably already been addresed in the past but, I would like to know why some wu's run slower or faster than others?
I am currently folding with one machine and waiting for parts for a 64 bit system from Intel.

Intel D865PERL
P4@2.0ghz
512m ddr2700
80g WD hd
768k DSL internet
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Postby dharbert » Tue Dec 02, 2003 5:35 am

There are two types of WU's that we process: Gromacs and Tinkers. Gromacs use accelerated SSE instructions while Tinkers do not. So, Tinkers take longer to process than Gromacs WU's.

It also depends on the frame size. Some WU's will have 100 frames while others will have 400 frames.
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Postby Tulatin » Tue Dec 02, 2003 1:54 pm

Also, look at point value - higher values will = higher times (usually). Now, the thing about grommacks and tinkers isn't always true - i've had a tinker that took 1/2 the time of a grommack i was working on.
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Postby dougsherwood1320 » Tue Dec 02, 2003 7:19 pm

The points value are what I understand but, if I have two separate 400 point values, sometimes one will seem to take alot longer than the other.
How do I tell the difference between gromac and tinker? Also, if my system is idle (overnight) with no power savers or hibernation, it seems to be slower than when I am doing other stuff, i.e., online, using MSOffice, or editing photos.
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Postby dharbert » Tue Dec 02, 2003 8:41 pm

Are you running the console or the graphical version? And what version of it are you using (3.4, 3.5, etc...)?
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Postby len444 » Wed Dec 03, 2003 10:24 am

dharbert wrote:Are you running the console or the graphical version? And what version of it are you using (3.4, 3.5, etc...)?


3.24, 3.25beta, and the latest beta is v4.00-pre1
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Postby dharbert » Wed Dec 03, 2003 1:18 pm

Ooops, my bad, I forgot the version numbers. :roll:
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Postby dougsherwood1320 » Wed Dec 03, 2003 4:56 pm

I am running the console version 3.24
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Postby dharbert » Wed Dec 03, 2003 6:53 pm

I am also running the 3.24 console version. I find that all of my Gromacs WU's finish within 1/2 hour of each other, depending on what else I'm doing on the machine at the time.

How do I tell the difference between gromac and tinker?


Look at your FAHlog.txt and it will have the following if you are crunching a Gromacs WU:

[18:24:46] + Processing work unit
[18:24:46] Core required: FahCore_78.exe
[18:24:46] Core found.
[18:24:46] Working on Unit 01 [December 3 18:24:46]
[18:24:46] + Working ...
[18:24:46]
[18:24:46] *------------------------------*
[18:24:46] Folding@home Gromacs Core

If you are crunching a Tinker WU, it will be using FahCore_65.exe

if my system is idle (overnight) with no power savers or hibernation, it seems to be slower than when I am doing other stuff.


I don't know what the problem is there. When I leave the computer idle, F@H always runs faster than when I am doing something else on it at the same time (like surfing the 'net).

Since you are using the same version as me, try setting it up this way. Create a shortcut to the F@H console (FAH3Console.exe) and add the following flag to it: -config

When you start the console up again it will ask you for your username, team # and various other things. Set the preference to fah, the priority to idle and the CPU usage time to whatever you want (I have mine set at 95%). The console should run noticeably faster when the computer is idle.
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Postby len444 » Wed Dec 03, 2003 6:57 pm

How do I tell the difference between gromac and tinker?


gromacs will be done in 1% increments (100% total), and tinker wu's are done in "frames". gromacs folding core is fahcore_78.exe, and tinker wu's use the fahcore_65.exe. gromacs wu's can use assembly optimizations, and tinkers don't. using the -forceasm flag will give about a 20% speed boost to a gromacs wu.

Since you are using the same version as me, try setting it up this way. Create a shortcut to the F@H console (FAH3Console.exe) and add the following flag to it: -config


if i may add to this, use the following flags:
-config -forceasm -advmethods -verbosity 9
btw, check the site in my sig for some explanations on using flags :wink:
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