Cosmology Problems

[ianmbaker2]

Hi, Just to add my 2p worth.

I'm getting 50 per wu on Cosmology and 54 per WU on Reisel.
Both lots take about the same time to run. 50 minutes on my Q6600 o/c'd to 3GHz.
It gives a useful 4k-5k per 18hr crunching day.

[MacDitch]

Information only.

Cosmology have moved their fixed value around a bit. It was until a few months ago 100 cr/wu; then was reduced to 80, 60 and (more recently) 50.

If (when?) the workunit length changes again, the credit will probably follow to try and maintain a fair ratio.

[Buster Gunn]

The Cosmology w/u's run from a low of 30 minutes to 1 hr 20 minutes. (On a Q6600). No matter how long it runs you get 50 points.

The Riesel Sieve w/u's score 54 and usually take exactly the same time depending on the machine. There is a machine limit of 400 w/u's. If you send one back you can get another. Oh, BTW, if you find a factor, you get a bonus of 3 points. The going rate now is about 2 factors per 100 w/u's

There is no limit on Cosmology. I have crammed as many as 1500 on one machine.

Riesel Sieve (the sieving part) is finite. It took 3 years for the first half, but they estimate that the 2nd half will only take another 8 months. Because of the great scoring, the daily haul there has gone from 20K w/u's to over 120K w/u's. After that, the LLR part will be left, which will take eons. You can average about 3000/day doing LLR on a Q6600.

Hope this helps. Welcome to my world.