Mersenne: Error
I just got this in an ECM run on M(10079). What does it mean? Is something wrong with my machine? [Thu May 25 15:00:24 2000] ECM found a factor in curve #263, stage #2 Sigma=1155032128984, B1=25, B2=2500. ERROR: Factor doesn't divide N! Nathan Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Mersenne: Mersenne P-1 Database
Calling all P-1 factorers, I'm in the process of creating a database of P-1 factoring data for all Mersenne numbers. I have not found any other database for this information available on the 'net. There is some data kept by Will that's available, but it only goes to M(169,991)... I am collecting data for unfactored Mersennes presently, but this may expand -- depending on size of the database -- to include all Mersenne numbers not completely factored... If you're interested in seeing this database get started, and of making use of it, please send me your data. I need the exponent, B1 bound, and B2 bound. You can send the a results file if that's the easiest... Eric _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Mersenne: errors
Hi, I appear to be getting error messages of 'input equalling output' every 4 or so days... O.K. its only a Cyrix 333...does this invalidate results? Should I switch to SETI? :) Regards, Ian (U.K.) BTW it took me 9 months to do 9763841 LL!!! _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
RE: Mersenne: errors
O.K. its only a Cyrix 333...does this invalidate results? Should I switch to SETI? :) BTW it took me 9 months to do 9763841 LL!!! The Cyrix probably has the worst FPU of any x86 clone... I had a Cyrix 300 running and I quickly realized that it's good for factoring and that was about it. I've also got a couple AMD K6 400's that are similarly pokey. They could do a double-check of around M(5M) in reasonable time, but I put them on factoring because that's just what those processors can best be doing. Now...my Pentium III 600's are kicking butt at LL testing... It's all a matter of finding the right work for the CPU you have. If all you can do is factoring with a certain system, hey, factoring is fun too! Aaron _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: The recent popularity of Single-Checking
Cheers to you Mikus. I second you wholeheartedly. At 11:51 AM 5/24/00 -0500, Mikus Grinbergs wrote: ... some snipping Since when has this project become a competitive event ? This mailing list has gotten several messages like the one above, which I interpret as comparing ANOTHER USER to standards set by the writer, rather than acknowledging that *all* users are contributors to the project. Will it mean the end of the world if that other user had mis-stated the resources available to him ? I think it is intrusive to publicly comment about ANOTHER USER when the writer spots something that does not meet his own expectations. Can't we please let each participant remain responsible for his own performance? _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: Error
I saw something similar once, out of hundreds of ECM curves that I've run. It happened on the curve being run while I adjusted memory limits on the program (Version 20.4.1, April 25 file date), if I recall correctly. Ken At 03:42 PM 5/25/2000 EDT, you wrote: I just got this in an ECM run on M(10079). What does it mean? Is something wrong with my machine? [Thu May 25 15:00:24 2000] ECM found a factor in curve #263, stage #2 Sigma=1155032128984, B1=25, B2=2500. ERROR: Factor doesn't divide N! Nathan _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
