In have a HP D530SPP computer with a P4 3GHz (15-2-9) that I recently installed BOINC 6.4.5 on. I am running these projects on it: rosetta and WCG.

My issue is that BOINC is acting like there are 2 cores, when there is actually only one. Thus 2 WUs are running at once, one second for one, then one second for the other, etc.

Is there something I can do to correct this, so that only one WU will crunch at a time?

Thanks.

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Some P4, I have one have something in between. It can run two threads at once even as it has only one core. But is should say Processors: 2 in the message list.
http://en.wikipedia.org/wiki/Simultaneous_multithreading

Are you sure your CPU doesn't do Hyperthreading? That's a virtual CPU running on top of the normal CPU, a feature of the later versions of the Pentium 4 family. You can also see this in Windows Task Manager->Performance tab. It'll then show two CPU-usage windows.

But sure, you can stop this behaviour by setting BOINC to use "on multiprocessors, use at most 50% of the processors" in either the global preferences of either project, or if you want to use them, in the BOINC Manager Local Advanced Preferences.

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Are you sure your CPU doesn't do Hyperthreading? That's a virtual CPU running on top of the normal CPU, a feature of the later versions of the Pentium 4 family. You can also see this in Windows Task Manager->Performance tab. It'll then show two CPU-usage windows.

Ahh, yes, you are correct. I did not realize this "feature" was present on this system. Thank you for figuring out this for me.

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Nothing much to figure out... My P4 3.0GHz has the same thing. ;-)

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