Hello,

Since i am running 8 HadCM3N Models on my I7 the recent average value goes in the dumps.
http://de.allprojectstats.com/show.php?projekt=21&id=1175444

My machine got 3000-4000 credits per day, but the RAC gows down and down. Actually the RAC for this computer is ~1700! How could this happen?

Could you be able, to fix this miscalculation?


The BOINCStats own calculated RAC shows a value, that looks trustworthyer :-)
http://boincstats.com/stats/host_graph.php?pr=cpdn&id=1175444

Byebye

Filling up all cores with the same type of model can cause them all to run very slowly. The problem seems to be that they fight each other for memory. Since no other type of WUs are available right now from this project it might be best to suspend half of the Hadcm3n WUs, attach to another project and download some of their WUs. Then run a mixture until types until all are finished. This should allow your Hadcn3n to run faster. World Community Grids new Malaria drug search project is a good option.

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This is a kind of P.S. to the post above.

Another reason for your RAC dropping is that the Hadcm3n WUs are compensated at a lower rate than the Hadam3p WUs so a mix of the 2 types will earn more credits per hour of crunching that just running the Hadcm3ns alone.

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There is indeed a problem with the RAC for hadcm3n. On my Phenom II X4 940, it's getting 2400 credits/day at boincstats, but it's showing about 1100 here. That's running only hadcm3n 24x7 for the last several months.

The RAC computation is not quite right and hasn't been for a few months.
Mostly doing hadcm3n and about 8000 credits per day, the RAC shows at about 4400.
But the totals are correct.
What JIM says is also true, hadcm3n gets less credit than the regionals.
And also true that running say 4 hadcm3n on a 4-core is about 20% slower than running 3 of the same on the same 4-core.
BUT -- the RAC computation is not right.
ALSO -- not very important -- not likely to be fixed anytime soon.

E

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