2 processors?
2 Mar 2005 21:59:43 UTC
Topic 188207
(moderation:
When I run the benchmark tests on my 2.8Ghz P4, it tells me this:
--- - 2005-03-02 15:21:16 - Number of CPUs: 2
--- - 2005-03-02 15:21:16 - 1242 double precision MIPS (Whetstone) per CPU
--- - 2005-03-02 15:21:16 - 1706 integer MIPS (Dhrystone) per CPU
Does anyone know why it tells me that I have 2 CPU's when I know for certain that I only have one? Also, a 2.66 GHz machine with less RAM consistently scores a higher average (~140 vs. my ~90). Anyone have any ideas?
2 processors?
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It is call Hyper Threading You have two virtual CPUs on certain Intel CPUs.........If you only want one go to your preferences and set it to one....
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How do I get Boinc to use
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How do I get Boinc to use both virtual procesors to work on one work package at a time?
My P4 3.4 ghz machine works on two packages at a time instead of completing one package and moving on to another. This is a real pain, when working on 10 hour packages.
How do I fix this.
Showme
When you say package I
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When you say package I presume you are talking about a Work Unit?
AFAIK Each WU can only be processed on a single CPU... or at least only on 1 CPU at any one time. What you will find though is that while you are using Hyperthreading, your PC will crunch 2 WU simutaneously; both in about 10 hours. This will give you a throughput of 2 WUs every 10 hours....
Same is tru if you used a true multiprocessor machine. Each processor would get one WU so you would have lots of WUs running at once.
Paul.
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It takes my P4 about 10 hrs
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It takes my P4 about 10 hrs (Boinc estimate) to crunch one wu/per virtual cpu. Is there some way I cam limit the size of the WU to 4 hours or less?
I also do Seti work and find the WU size to be more suited to my computing schedule.
No unfortunatley
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No unfortunatley not.
Einstein WUs take longer to do than SETI. It's not your computer - thats just the way it is!
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just remember that you will
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just remember that you will get 2.5 times the credit of a seti@home WU because your computer did 2.5 times the ammount of calculations.
You are getting huge perofmance gains using HT so be happy with 2 WU's every 10 hours, non HT P4's wouldn't come close to that.
MickFoley
Although it is impossible to
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Although it is impossible to shorten the workunit to only 4 hours, you can increase crunching time by disabling the screensaver or not opening up the graphics.
For comparison, my Celeron 2.3GHz crunches 1 E@H unit in around 10.5 hours. But I never use the graphics, nor do I use the screensaver. My monitor goes off when I don't use it, while BOINC sits in the system tray.
Any refresh rate you use on the monitor to show BOINC or its graphics (or screensaver) uses valuable CPU time.
Mind, I am crunching 5 different projects and still manage to crunch 1 E@H unit in 10.5 hours (but in about 2.5 days). :D
Thanks All! I will keep
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Thanks All!
I will keep crunching away.