Mersenne Digest Wednesday, June 28 2000 Volume 01 : Number 752 ---------------------------------------------------------------------- Date: Mon, 26 Jun 2000 19:49:30 -0400 From: "Allan G. Schrum/Theresa C. Schrum" <[EMAIL PROTECTED]> Subject: Mersenne: Modem Dun causing Illegal Sumouts? Hi Folks, I recently upgraded my Win98 HP PIII 533 machine to use Microsoft's DUN with the 128 bit encryption (the latest available from Microsoft). Now, fairly reliably, whenever I start the modem to make a connection to my ISP, I get an Illegal Sumout error on prime95. If I stop prime95, start my modem, then continue, everything works fine. But 1 out of 3 times, if I let prime95 run while starting my modem, I get the sumout error. Has anyone else had this problem? Anyone have any links with Microsoft to research/report this problem? Thanks, - -Allan _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Tue, 27 Jun 2000 16:44:44 +0200 (MET DST) From: Reto Keiser <[EMAIL PROTECTED]> Subject: Mersenne: Factor98 Hi all factor98: Where can I find the p-1 tool factor98.exe? As far as I know it supports p-1 factoring furteher than prime95 (prime95 only allows a b1 up to 700M). is this tool still available? memory usage: How much memory does an ecm test stage 2 need? Asm much as an p-1 stage 2 of the same exponent? What about an LLtest of an 10Mdigitnumer? Thanks Reto _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Tue, 27 Jun 2000 10:18:57 -0700 From: Stefan Struiker <[EMAIL PROTECTED]> Subject: Re: Mersenne: Factor98 Reto: First question: goto http://www.informatik.tu-muenchen.de/~kruppa/f98/ for factor98.exe download and info. Anyone else for the other questions? Best Wishes, Stefanovic, ETH during 63-64 Reto Keiser wrote: > Hi all > > factor98: > > Where can I find the p-1 tool factor98.exe? As far as I know it supports > p-1 factoring furteher than prime95 (prime95 only allows a b1 up to > 700M). is this tool still available? > > memory usage: > > How much memory does an ecm test stage 2 need? Asm much as an p-1 > stage 2 of the same exponent? > What about an LLtest of an 10Mdigitnumer? > > Thanks > Reto > > _________________________________________________________________ > Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm > Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Tue, 27 Jun 2000 11:19:14 -0700 From: Will Edgington <[EMAIL PROTECTED]> Subject: Mersenne: Factor98 Reto Keiser writes: Where can I find the p-1 tool factor98.exe? As far as I know it supports p-1 factoring furteher than prime95 (prime95 only allows a b1 up to 700M). is this tool still available? As Stefanovic as already replied, yes, it's still out there. Further, I still have several Factor98 (and Factor95) save files for certain small Mersennes. Will _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Tue, 27 Jun 2000 22:13:55 +0000 (GMT) From: Russel Brooks <[EMAIL PROTECTED]> Subject: Mersenne: Home page link in Top Factoring page http://mersenne.org/ips/tops.shtml How come my id can be a link to my url in the Top Primality Test Producers Awards list, but not in the Top Factoring Producers Awards list? Cheers... Russ _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Tue, 27 Jun 2000 22:13:58 +0000 (GMT) From: Russel Brooks <[EMAIL PROTECTED]> Subject: Mersenne: Browser Quick Stats Tip ... broke Near the bottom of http://mersenne.org/ips/tops.shtml is a "Browser Quick Stats Tip" that is... http://mersenne.org/cgi-bin/primenet_user.pl?UserID=youraccountID When I use this link, after replacing my account id, I consistently get a blank page returned. This problem started happening about the time of the server's move south a couple of weeks ago. Cheers... Russ (who is too concerned with his top producer's standing) _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Wed, 28 Jun 2000 07:01:22 +0200 From: Henk Stokhorst <[EMAIL PROTECTED]> Subject: Re: Mersenne: Browser Quick Stats Tip ... broke Russel Brooks wrote: > Near the bottom of http://mersenne.org/ips/tops.shtml > is a "Browser Quick Stats Tip" that is... > http://mersenne.org/cgi-bin/primenet_user.pl?UserID=youraccountID > > When I use this link, after replacing my account id, I consistently get > a blank page returned. This problem started happening about the time of > the server's move south a couple of weeks ago. http://mersenne.org/cgi-bin/primenet_report.pl?UserID=youraccountID&UserPW=yourpassword YotN, Henk Stokhorst _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Wed, 28 Jun 2000 10:36:29 +0000 From: Alexander Kruppa <[EMAIL PROTECTED]> Subject: Re: Mersenne: Factor98 Stefan Struiker wrote: > Reto: > > First question: goto > > http://www.informatik.tu-muenchen.de/~kruppa/f98/ > > for factor98.exe download and info. Uh oh, a link to an almost forgotten web page of mine! The Fact98.exe file is fine (now, I had to make it chmod a+r again), but the checkpoint files may be out of date - check with Will Edington whether he has ones that are factored further. There are not that many on my page, anyways, and the uploading never worked particularly well.. Please note that Factor98 has no stage 2 - factoring to high bounds with Prime95 will be about 20 times (rough guess) faster. Also, IMHO trying to find a factor with extremely high P-1 bounds is rather inefficient, I think it would almost always be better to spend the time on a few ECM curves. > Anyone else for the other questions? Hmmm... the size of residues are the same for ECM and P-1 for the same exponent, and I *think* ECM needs to store only one residue per entry in the multiples-of-stage-1-residue, in which case the memory requirement for ECM and P-1 would be roughly the same for the same exponent and the same bounds, but I'm not quite sure. Ciao, Alex. _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Wed, 28 Jun 2000 09:06:02 -0400 From: George Woltman <[EMAIL PROTECTED]> Subject: Re: Mersenne: Factor98 Hi, At 04:44 PM 6/27/00 +0200, Reto Keiser wrote: >Where can I find the p-1 tool factor98.exe? As far as I know it supports >p-1 factoring furteher than prime95 (prime95 only allows a b1 up to >700M). is this tool still available? prime95 should be faster and it supports b1 up to 4 billion. >How much memory does an ecm test stage 2 need? The readme.txt file indicates you need a minimum of FFT size times 192 bytes. That is, to ECM the 20th Fermat number an FFT size of 64K is used and a minimum of 12MB is needed. > As much as an p-1 >stage 2 of the same exponent? P-1 stage 2 can operate on much less memory - as low as 32 * FFT size or in the case of the 20th Fermat number, 2MB. >What about an LLtest of an 10Mdigitnumer? Here you are using a 1792K FFT size. Times 8 bytes per double equals 14MB. Add a little bit of overhead for code and sine/cosine tables and you get around 16MB. Regards, George _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Wed, 28 Jun 2000 21:23:08 +0000 (GMT) From: Russel Brooks <[EMAIL PROTECTED]> Subject: Re: Mersenne: Browser Quick Stats Tip ... broke Henk Stokhorst wrote: > Russel Brooks wrote: > > Near the bottom of http://mersenne.org/ips/tops.shtml > > is a "Browser Quick Stats Tip" that is... > > http://mersenne.org/cgi-bin/primenet_user.pl?UserID=youraccountID > > > > When I use this link, after replacing my account id, I consistently get > > a blank page returned. This problem started happening about the time of > > the server's move south a couple of weeks ago. > > >http://mersenne.org/cgi-bin/primenet_report.pl?UserID=youraccountID&UserPW=yourpassword Henk, that is a different report. I already know about it and it works just fine. The problem one returns a 1 line report; or it used to. Cheers... Russ _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Wed, 28 Jun 2000 23:35:50 +0100 From: "Siegmar Szlavik" <[EMAIL PROTECTED]> Subject: Re: Mersenne: Browser Quick Stats Tip ... broke On Wed, 28 Jun 2000 07:01:22 +0200, Henk Stokhorst wrote: >Russel Brooks wrote: > >> Near the bottom of http://mersenne.org/ips/tops.shtml >> is a "Browser Quick Stats Tip" that is... >> http://mersenne.org/cgi-bin/primenet_user.pl?UserID=youraccountID >> >> When I use this link, after replacing my account id, I consistently get >> a blank page returned. This problem started happening about the time of >> the server's move south a couple of weeks ago. > same problems here :( two or three weeks ago the link worked sometimes, but since then again, nothing but a blank page. >http://mersenne.org/cgi-bin/primenet_report.pl?UserID=youraccountID&UserPW=yourpassword > Russel, this is a different report page. btw. would it be possible to include this single line of information from the other report in this one? another question: when is the next server synchronization planed? My report gets longer and longer ;) and I have difficulties to find the latest results in the list. Alternativley, would it be possible to have something like .../cgi-bin/primenet_results.pl?UserID=youraccountID&UserPW=yourpassword which reports the results of, lets say the last 2-4 weeks or so, sorted by (the incoming) time? regards Siegmar _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Wed, 28 Jun 2000 15:50:37 -0700 From: Stefan Struiker <[EMAIL PROTECTED]> Subject: Re: Mersenne: Browser Quick Stats Tip ... broke - --------------8FF173BC45FB185A9C32772D Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Henk Stokhorst wrote: > Russel Brooks wrote: > > > Near the bottom of http://mersenne.org/ips/tops.shtml > > is a "Browser Quick Stats Tip" that is... > > http://mersenne.org/cgi-bin/primenet_user.pl?UserID=youraccountID > > > > When I use this link, after replacing my account id, I consistently get > > a blank page returned. This problem started happening about the time of > > the server's move south a couple of weeks ago. > > >http://mersenne.org/cgi-bin/primenet_report.pl?UserID=youraccountID&UserPW=yourpassword > > YotN, > > Henk Stokhorst > I've gotten the coveted one-liner from time to time, around 0200 (USA) PDT, but rarely during SF biz 'n' wild hours. "Contains No Data" is the usual response. Anyone else getting lucky? My Two Kopecks, Stefanovic - --------------8FF173BC45FB185A9C32772D Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit <!doctype html public "-//w3c//dtd html 4.0 transitional//en"> <html> <p>Henk Stokhorst wrote: <blockquote TYPE=CITE>Russel Brooks wrote: <p>> Near the bottom of <a href="http://mersenne.org/ips/tops.shtml">http://mersenne.org/ips/tops.shtml</a> <br>> is a "Browser Quick Stats Tip" that is... <br>> <a href="http://mersenne.org/cgi-bin/primenet_user.pl?UserID=youraccountID">http://mersenne.org/cgi-bin/primenet_user.pl?UserID=youraccountID</a> <br>> <br>> When I use this link, after replacing my account id, I consistently get <br>> a blank page returned. This problem started happening about the time of <br>> the server's move south a couple of weeks ago. <p><a href="http://mersenne.org/cgi-bin/primenet_report.pl?UserID=youraccountID&UserPW=yourpassword">http://mersenne.org/cgi-bin/primenet_report.pl?UserID=youraccountID&UserPW=yourpassword</a> <p>YotN, <p>Henk Stokhorst <br> </blockquote> I've gotten the coveted one-liner from time to time, around <br>0200 (USA) PDT, but rarely during SF biz 'n' wild hours. <br>"Contains No Data" is the usual response. Anyone else getting lucky? <p>My Two Kopecks, <br>Stefanovic</html> - --------------8FF173BC45FB185A9C32772D-- _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Wed, 28 Jun 2000 16:44:59 -0700 From: Eric Hahn <[EMAIL PROTECTED]> Subject: Re: Mersenne: Browser Quick Stats Tip ... broke Siegmar Szlavik wrote: >> Near the bottom of http://mersenne.org/ips/tops.shtml >> is a "Browser Quick Stats Tip" that is... >> http://mersenne.org/cgi-bin/primenet_user.pl?UserID=youraccountID >> >> When I use this link, after replacing my account id, I >> consistently get a blank page returned. This problem >> started happening about the time of the server's move >> south a couple of weeks ago. > >same problems here :( two or three weeks ago the link worked >sometimes, but since then again, nothing but a blank page. Lately, the link has been working... However, the top producers report must have been updated on the most recent hour for it to work! The last several weeks, it hasn't been updated automatically every hour (more like every couple of days)... If it hasn't been updated on the most recent hour, you may get a blank page or a "document contains no data" message... Eric 'the voice of *plenty* of experience'... _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Wed, 28 Jun 2000 17:56:01 -0700 From: Stefan Struiker <[EMAIL PROTECTED]> Subject: Mersenne: Synchronization Hi All: What is a "synchronization" and where can I find out more about it? Regards, Stefanovic _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ End of Mersenne Digest V1 #752 ******************************
