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BOINC and How it Sets Priorities

Hi folks-

I am a newbie, and heard about BOINC from a radio program about SETI. Since they lead me to the SETI program, that's where I started, and they gave me a 1340 hour project with a due date occurring in less than 1340 hours.

I saw, as I was signing up, that there were lots of useful activities, including the World Community. I also signed up for World Community work. I received a 30 hour project with a due date that should've been easy to accomplish. Not to knock SETI, or anything, but the SETI project immediately set itself as 'high priority', and left the World Community hanging. To no avail, I tried to establish a 50-50 share of CPU time to the two projects, and the SETI activity would not relinquish the priority status.

I didn't like it, but I figured I volunteered my CPU time for BOINC and its projects to manage, so I did not interfere with it.

Leaving it alone started to grow on me in a bad way, over the next few days, and I decided to try to throw SETI off of the computer. When I went in to do that, the World Community project was running and SETI was dormant. I left it alone. Apparently they are swapping back and forth. All seems well . . .

Can I favor one project over another, or am I doing better just to let BOINC and the projects do whatever it wishes with the projects I sign up for?

Points and Credits and all that stuff: Do I need to concern myself with these, much? I see a lot of people with very high prowered computers participating in these projects. Myself, I just have an old, slow, semi-retired computer that I'm willing to leave running when I walk away from it. BOINC can check it out for itself (and apparently has), and if it suits their needs they can use it. If it's fame and glory, the power users are more than welcome to it. If it's fortune, I guess we can talk about it LOL.

Thanks.

terry smile
[Jun 8, 2009 2:29:28 PM]   Link   Report threatening or abusive post: please login first  Go to top 
Sekerob
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Re: BOINC and How it Sets Priorities

Welcome to the Machine, Terry Toolin

The way to favor a project, give one or the other more CPU time is by setting the Project Weight aka Resource Share. By default each new project joined has the value 100, so 2 projects at 100 gives 50% each. By playing these values, for instance 400 WCG, 100 for SETI, you can achieve a 80/20 share. Then, exercise patience as BOINC juggles the priorities and learns what the real task runtimes are coupled with hours the computer is allowed to crunch on a periodic basis.

That's all that too it.

PS, Yes, some projects suffer severe run time projection accuracy problems. Nature of the non-deterministic calculation beast. It will pan out over a longer period. The latest client designed to cancel any work not started and expired work.
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[Edit 1 times, last edit by Sekerob at Jun 8, 2009 4:08:53 PM]
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