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Linux port of Alex Kan's?
sunu:
--- Quote from: Lysius on 19 Mar 2009, 03:45:51 pm ---Perhaps I should just try AP, although I guess it will take weeks to figure out if that pays off.
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I think right now AP 5.03 gives more credits that MB, but it takes a while to pick up.
Josef W. Segur:
--- Quote from: Josef W. Segur on 18 Mar 2009, 09:59:36 pm ---Credit claims can be enough different to annoy other users, though.
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--- Quote from: Lysius on 19 Mar 2009, 03:45:51 pm ---It annoys me, too. Credits claimed dropped by roughly a factor of 3, computation time dropped by a factor of 2-2.5. So in the same time I do more work for less credits than with the default app. I guess one needs SSE2 or SSE3 to have enough speedup to compensate the lesser credits with the increased number of WUs.
So I have to decide if I care most about credits, than I use the default app again, or if I care most about science and helping the project, then I stay with the optimized app.
Perhaps I should just try AP, although I guess it will take weeks to figure out if that pays off.
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Actually, the claims from 2.4L versions are fine, in those builds Crunch3r had implemented the code to comply with the credit_rate in the WU header. The low credits you've seen so far are because you got some Very High Angle Range work (aka 'shorties').
I concur that if you're patient optimized AP_v5 work should give higher credit/time than MB work. The patience is needed not only to get the work done but also because wingmates will often abort or error out or simply fail to complete the work, so the credit grant can be delayed a lot.
Joe
Lysia:
--- Quote from: Josef W. Segur on 19 Mar 2009, 08:30:55 pm ---Actually, the claims from 2.4L versions are fine, in those builds Crunch3r had implemented the code to comply with the credit_rate in the WU header. The low credits you've seen so far are because you got some Very High Angle Range work (aka 'shorties').
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I now had a WU that gave nearly the credits of the WUs before (42.6). It seems as if the speed improvement for SSE-only CPUs is in a region of about 5%, which isn't even statistically significant with only one WU done. Perhaps the version with fftw is better, but these 5% are not worth the effort of finding and installing the optimized app.
--- Quote from: Josef W. Segur on 19 Mar 2009, 08:30:55 pm ---I concur that if you're patient optimized AP_v5 work should give higher credit/time than MB work. The patience is needed not only to get the work done but also because wingmates will often abort or error out or simply fail to complete the work, so the credit grant can be delayed a lot.
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One week to go...
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