Thread: AMD or Intel
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Old 2009-09-12, 17:51   #7
cheesehead
 
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"Richard B. Woods"
Aug 2002
Wisconsin USA

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Quote:
Originally Posted by Reed_Young View Post
In my GIMPS directory, I see results.txt. Do you mind helping me interpret the last line of it? I'm not as interested in the % progress, stage 1 or 2, iteration # on the leading lines. I just want to know about:

"M41674859 completed P-1, B1=455000, B2=7962500"

The M# I think I get :) but what are B1 & B2? Thank you.

Reed Young
In the P-1 factoring method, B1 and B2 are two parameters that specify how far to go in stage 1 and stage 2, respectively.

http://mersennewiki.org/index.php/P-...ization_Method explains how the B1 and B2 values fit into the P-1 algorithm.
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