LHC@home

I'm not actually interested in gaining credits (I cannot buy anything with them), but I see many people are.

So: if I run one 1000 events ATLAS task with 28 cpus, it can end in about 1 hour (elaboration time), and I get about 500 credits for it. Every day, that's about 12000 credits.

If I run 10 task at the same time, 3 cores each (total 30 cores instead of 28, who cares), they will end in about 9 hours. I get 4500 credits for each task, so in total 45000 task in 9 hours. That's more than 100000 credits a day. Almost ten times more.

And the second solution looks less efficient: the CPU time used by a task is about 90000 second with 28 cores, and more than 95000 with three.
What's the logic in it? I mean: a bit of variation is IMHO negligible... but TEN times?
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Bye, Lem