Crunching on QuadCore
6 Apr 2011 3:01:35 UTC
Topic 195737
(moderation:
Hello
Can someone please help me? I just bought a Mac Book Pro with 2.0Ghz i7 quad core processor. When I installed boinc (unix command line) E@H want to crunch 4 WU's at one time. I only want E@H to crunch only 1 WU at a time. In my prefs I have it set on multi processor to use 1 processor. I even left it blank and still it wants to crunch 4 WU's. No way I want E@H using my comp like that! Is there a solution fo this? Thanks
Jaco
Crunching on QuadCore
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Set you preferences to use 25% of the processor, eithier locally at the clent, or by making a second set of computing prferences, and then moving that host to your new venue,
Claggy
RE: Set you preferences to
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Claggy,
Thanks for your reply. I did as you said, but it still wants to crunch more than one WU. Now it's crunching two. Thanks!
Jaco
RE: Set you preferences to
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Reportedly throtteling ("Use at most ... of CPU time") doesn't work too well with the current Core Client and Einstein@home applications, and would rather try to avoid it.
Instead I'd set "On multiprocessors, use at most ... processors" to "1" in your Global Computing Preferences (and update the Einstein@home project - if you're using the command-line client, start it with [pre]
boinc --update_prefs http://einstein.phys.uwm.edu/[/pre]
BM
BM
RE: Instead I'd set "On
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And for BOINC Client v6.10.58, as xi3piscium is using, I'd go one line further down to
where nnn is 13 / 26 / 51 % for his 8 / 4 / 2 processor hosts. Actually, that's not nice, is it?
RE: ...Instead I'd set "On
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That's the preference for pre-6.x versions. ;-)
The current one is (as Claggy almost correctly said:-)
On multiprocessors, use at most 25% of the processorsto use one out of four cores.Gruß,
Gundolf
Computer sind nicht alles im Leben. (Kleiner Scherz)
RE: where nnn is 13 / 26 /
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_______^^^ undeclared variable.
Schwerer Fehler im Quellprogramm. Ãœbersetzerabbruch vor Adressierung
PS&entschl
(Does anyone else remember the "Telefunken Rechner"? ;-)
Computer sind nicht alles im Leben. (Kleiner Scherz)
RE: RE: ...Instead I'd
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Opps, thanks for that, well it was 5:55am, ;-)
Claggy
Thanks for all of the
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Thanks for all of the replies. Updated global prefs. Set use at most 1 processor. And percentage set to 12%. Now crunching one WU.
Jaco
The i7's on the Macs also
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The i7's on the Macs also have HyperThreading enabled, which means that your laptop has 8 logical processors, not 4. That is likely why setting it to 25% still used two processes.
RE: The i7's on the Macs
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Just FYI not all i7's are quad core and with HT 8 core, my wifes new 13" Mac is an i7 but is only a dual core and then with HT a quad core. I guess there are different levels of Mac's too.