Limiting number of cores
![Roberto Sartori [VENETO]](https://einsteinathome.org/sites/default/files/imagefield_default_images/default-avatar.png?1347855344 "Roberto Sartori [VENETO]"){kind=avatar}
17 Dec 2011 12:06:38 UTC
Topic 196110
(moderation:
Hello to everyone.
There is the possibility of limiting the use of the cores of the CPU, for example, use 3 cores in a quad-core for einstein@home? Without using the resource share that does not work..
thanks :)
Limiting number of cores
)
To use 3 cores in a quad-core set
in your Computing preferences.
Gruß,
Gundolf
Computer sind nicht alles im Leben. (Kleiner Scherz)
RE: To use 3 cores in a
)
thanks... and if i want to use 3 cores with einstein and one core with another project? :)
RE: RE: To use 3 cores in
)
Then set your resource share to 75% to Einstein and 25% to the other project ;-)
Claggy
RE: RE: RE: To use 3
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i've try, but it doesn't work...boinc always downloads tasks for eistein...and elaborate only einstein wus...:(
RE: RE: RE: RE: To
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Boinc is probably paying Debt back to Einstein, in time it should equalise, then it should work,
Claggy
RE: RE: RE: RE: Quote
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i don't think so, because i'm using einstein with 500.000 credits and 3000 rac, and the other project has 3000 credit and 30 rac...
RE: i don't think so,
)
But can the other project actually supply work? If the other project has no tasks available to send, BOINC will run only E@H tasks on all the cores. A debt will build up to the other project and when the other project does have tasks, BOINC will favour it until the debt is repaid.
What is the other project and are you sure it has tasks available?
Cheers,
Gary.
RE: Then set your resource
)
Claggy, I've seen you be a reliable source time after time, but I think this is an error.
Resource share appears as part of "computing preferences" which in the Einstein page set says right at the top of the page "These apply to all BOINC projects in which you participate."
On the SETI version of this page, an additional line adds the observation "On computers participating in multiple projects, the most recently modified preferences will be used."
Now, on the other hand, if you are using app_info to run simultaneous tasks on a GPU, nothing tops you from running 3-fold Einstein and 1-fold SETI, but that is another matter not involving the computing preference mechanism.
Nah, he should be right about
)
Nah, he should be right about this. Ressource share is set for each project individually (and in each profile, to be precise). And it tells BOINC just what one would expect, in this case "dedicate 75% of my computing time to Einstein and 25% to the other one. If you can."
Note that this doesn't mean you're getting a 3:1 RAC ratio, as this depends on the projects themselves.
MrS
Scanning for our furry friends since Jan 2002
the project is test4theory of
)
the project is test4theory of CERN, that has a very long deadline, so i have to find a way to elaborate wu from t4t and wu from einstein at the same time...:)