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Postby dharbert » Wed Dec 03, 2003 7:07 pm

I've never had to use -forceasm and I really don't see any need for it. The F@H client that I am using always enables SSE on every WU without having to use the -forceasm flag. I always see the following in my FAHlog.txt:

[18:24:47] Assembly optimizations on if available.
[18:24:47] Entering M.D.
[18:24:53] Protein: p1031_A21unf_305_94
[18:24:53]
[18:24:53] Writing local files
[18:24:53] Extra SSE boost OK

I get that message for the first WU and every WU thereafter. The SSE never turns off. The completion time (when my computer is idle) is the same for consecutive WU's as it was for the first one.

I occasionaly use the -advmethods flag if I'm getting a lot of Tinkers. I haven't had a use for the -verbosity flag yet.
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Postby len444 » Wed Dec 03, 2003 7:23 pm

-verbosity 9 should be used for maximal output to the fahlog.txt file. this can come in handy when trouble shooting problems. amd cpu's need a flag to get sse optimizations. the 3.24 client w/ an amd cpu will drop the sse optimizations after the first wu is completed. it's best to use the latest beta version when using amd cpu's, esp. for keeping sse optimizations active for all subsequent wu's after the first one.
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Postby dougsherwood1320 » Wed Dec 03, 2003 8:20 pm

The following is a sample of the latest portion of my log file.

[20:37:19] Folding@home Gromacs Core
[20:37:19] Version 1.53 (October 2, 2003)
[20:37:19]
[20:37:19] Preparing to commence simulation
[20:37:19] - Ensuring status. Please wait.
[20:37:36] - Looking at optimizations...
[20:37:36] - Working with standard loops on this execution.
[20:37:36] - Previous termination of core was improper.
[20:37:36] - Going to use standard loops.
[20:37:36] - Files status OK
[20:37:36] - Go method
[20:37:37] - Expanded 405173 -> 2483231 (decompressed 612.8 percent)
[20:37:37]
[20:37:37] Project: 548 (Run 271, Clone 13, Gen 14)
[20:37:37]
[20:37:37] Entering M.D.
[20:38:02] (Starting from checkpoint)
[20:38:02] Protein: p548_BBA5_ext

The part that is in bold seems to indicate a proiblem although no problem was encountered of indicated at that time. Can someone explain?
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Postby dharbert » Wed Dec 03, 2003 8:37 pm

You probably closed the console client by clicking the "x" instead of using ctrl - c. To shut down the console client properly, press Control + C. It also looks like your client isn't using SSE either for some reason.

Project 548 is a Gromacs WU and since you are using an Intel P4, SSE should have been enabled.
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Postby len444 » Wed Dec 03, 2003 8:48 pm

20:37:36] - Previous termination of core was improper.
[20:37:36] - Going to use standard loops.


if you used -forceasm flag, it wouldn't have dropped to standard loops. it basically "forces" assembly optimizations. but like dharbert stated ctrl-c is the way to close the console.
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Postby dougsherwood1320 » Wed Dec 03, 2003 8:51 pm

It seems I am using the graphical rather than the console. Does this make a difference? I am completing wu's in 16-28 hrs.
If I restart win2k or anything else, I always pause first. Folding starts from my startup directory and I rarely need to stop it.
I DID have a memory stick die on me a couple days ago and I am down to 256m instead of 512m. I have seen no visible difference in speed with the memory reduction though.
How do I set SSE in the graphical version?
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Postby Tulatin » Wed Dec 03, 2003 8:52 pm

It may have been that when that stick died, it fried the folding work on it at the time.
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Postby len444 » Wed Dec 03, 2003 9:02 pm

How do I set SSE in the graphical version?


right click the executable, and create short cut. right click the shortcut, select properties and add the flags in the target area. leave a space after the quote mark, and between each flag, then select apply.
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Postby dougsherwood1320 » Wed Dec 03, 2003 9:07 pm

That was 2 wu's ago and I had just finished one and started another when I paused the work and rebooted. That was when I had memory problems.
If I need to suspend f@h work for any length of time (a few hours to test memory using memtest-86), should I quit or pause?
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Postby len444 » Wed Dec 03, 2003 9:12 pm

dougsherwood1320 wrote:That was 2 wu's ago and I had just finished one and started another when I paused the work and rebooted. That was when I had memory problems.
If I need to suspend f@h work for any length of time (a few hours to test memory using memtest-86), should I quit or pause?


right click systray icon and pause, then right click it again and select quit.
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