Anyone else here because they are looking for something to do with their cpu cycles now that CPDN stopped issuing slabs?

River~~

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In case you are wondering what this means:

CPDN have recently upgraded their science from the so-called slab model (which ran for 1700 hours on my 833MHz box) to their sulphur experiment, (with WU that wanted 5800 hours). Suddenly an 8333hr deadline looked uncomfortably short and I've stopped my boxes accepting any more sulphurs.

For those with fast, always on machines it is an exciting new experiment, but for us with slow boxes, or fast boxes working only office hours it made the project out of reach. But the beauty of BOINC is that their loss is some other project's gain; in my case Rosetta's - at least till Orbit comes online

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River, I'm a noob to CPDN. Their Mac version just seems to be too much trouble, and whether slab or sulphur, the Macs I have right now seem too slow for it. I _have_ now put it on the "fast PC" though, specifically because the "good" thing about the sulphur WUs is they last forever. Network down, can't get work from _any_ project? Ok, work on CPDN for a few days.

I wouldn't run it on a slow machine, unless it was all I was going to run there. Or even on a "moderately" fast one. On one that is fast enough to do even a Sulphur result in, say, two months, which means that even with a 20-25% resource share it should finish well before the 1-year deadline, it makes the _perfect_ "backup" project. (Mine is estimating 1000 hours, so for the 3700, Sulphur is the equivalent of Slab on your 833.)

I think they are limiting their userbase severely though with the extremely large WUs. I wouldn't even consider them except for the "backup" issue, and the fact that I've cut Predictor off that box completely, and reduced SETI drastically. I want _something_ on there besides Rosetta, just in case! I guess if CPDN's loss was Rosetta's gain for you, Predictor's loss was CPDN's gain for me. :-)

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Hi Bill,

... I _have_ now put it on the "fast PC" though, specifically because the "good" thing about the sulphur WUs is they last forever. Network down, can't get work from _any_ project? Ok, work on CPDN for a few days.
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Quite so. Also ideal for me as I also support LHC which currently has work only sporadically. The way the scheduling works out is that after a week of doing nothing but CPDN, when LHC has work it runs 100%, so I get a fair go at what WU there are, an unintended but welcome side effect of JM7's coding ;-)

Sulphur, 5800 hours in 8333? - not enough slack to use as a backup.

I think they are limiting their userbase severely though with the extremely large WUs

I've said this over on their forums -- but I get the impression that they realise it will hit the user base but the scientists think the science demands faster boxes and longer runs and they seem to accept that hosts means fewer hosts project.

And there is no shortage of projects that *can* use the slow or part-time boxes ;-)

I guess if CPDN's loss was Rosetta's gain for you, Predictor's loss was CPDN's gain for me. :-)

What goes around, comes around...

showing that users need not fret too much if we find we can't support our favourite project, someone else will anyway, and even outside of the personal favourites there is plenty of good science to support.

River~~