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Seti@Home optimized science apps and information  |  Optimized Seti@Home apps  |  Discussion Forum  |  Topic: MB ARs: Apples to Apples 0 Members and 0 Guests are viewing this topic. « previous next »
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Gecko_R7
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MB ARs: Apples to Apples
« on: 26 Aug 2007, 02:34:38 pm »

Question for Joe or Crunch3r:

Been seeing many WUs granting 63.98 credits these past several weeks.

Just compared times on my T7200 -doze box w/ Crunch3r's 2.4 MB ssse3 vs. OSX box T7200 w/ Alex's revised 7.2 for C2D.

The iMac crunched several WUs w/ AR=.010024 in 7751.81 for 63.98 credits
The Dell, WUs w/ AR=.006913 in 8319.08 for the same 63.98

Both rigs have crunched dozens of 63.98 credit WUs, yet the AR of the same credit WUs is distinctly different for each platform.
Different AR = same WU credit?

I know there is a simple explanation for this.
A refresher lesson from the resident professors?   Smiley
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Crunch3r
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Re: MB ARs: Apples to Apples
« Reply #1 on: 26 Aug 2007, 02:36:44 pm »

Question for Joe or Crunch3r:

Been seeing many WUs granting 63.98 credits these past several weeks.

Just compared times on my T7200 -doze box w/ Crunch3r's 2.4 MB ssse3 vs. OSX box T7200 w/ Alex's revised 7.2 for C2D.

The iMac crunched several WUs w/ AR=.010024 in 7751.81 for 63.98 credits
The Dell, WUs w/ AR=.006913 in 8319.08 for the same 63.98

Both rigs have crunched dozens of 63.98 credit WUs, yet the AR of the same credit WUs is distinctly different for each platform.
Different AR = same WU credit?

I know there is a simple explanation for this.
A refresher lesson from the resident professors?   Smiley

You should have a look at the flop counters an compare them too cuz that's how credits are calculated.
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Josef W. Segur
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Re: MB ARs: Apples to Apples
« Reply #2 on: 26 Aug 2007, 03:10:01 pm »

Question for Joe or Crunch3r:

Been seeing many WUs granting 63.98 credits these past several weeks.

Just compared times on my T7200 -doze box w/ Crunch3r's 2.4 MB ssse3 vs. OSX box T7200 w/ Alex's revised 7.2 for C2D.

The iMac crunched several WUs w/ AR=.010024 in 7751.81 for 63.98 credits
The Dell, WUs w/ AR=.006913 in 8319.08 for the same 63.98

Both rigs have crunched dozens of 63.98 credit WUs, yet the AR of the same credit WUs is distinctly different for each platform.
Different AR = same WU credit?

I know there is a simple explanation for this.
A refresher lesson from the resident professors?   Smiley

Any MB AR from 0.000 to 0.050 gets exactly the same processing and yields 63.98 credits. These are the VLAR units where there's so little motion that all the data remains within the beam width for the full 107.34 second duration of the WU. The only other place the flopcount curve has the right value for a 63.98 claim is in the middle of the cliff at AR 0.400, so I think it's impossible.

For Line feed, the dread 58.7 credit units were the same thing except extended to the 0.083 beam width of that feed.
                                                      Joe
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