Re: Mersenne: missing exponents?
-Original Message- From: Nathan Russell <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]> Date: 15 May 2001 03:25 Subject: Re: Mersenne: missing exponents? >I have version 20.6.1 - and the web page reads that all versions were >last updated June 15 2000. Something odd is going on... That's the version I'm running. Has there been an update since last June that I don't know about? >Nathan Daran G. _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
On Mon, 14 May 2001 18:17:10 -0700, Aaron Blosser wrote: >Hmm... well, then again, I'm looking at the NTPrime. I've only got one >machine running Prime95, and it's been so long... > >I thought it had all the same options though, but I could just be terribly >mistaken. > >Running NTSetup (part of the NT service package), I show version 20.6.5... > >Aaron I have version 20.6.1 - and the web page reads that all versions were last updated June 15 2000. Something odd is going on... Nathan _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
Hmm... well, then again, I'm looking at the NTPrime. I've only got one machine running Prime95, and it's been so long... I thought it had all the same options though, but I could just be terribly mistaken. Running NTSetup (part of the NT service package), I show version 20.6.5... Aaron - Original Message - On Mon, 14 May 2001 17:27:19 -0700, Aaron Blosser wrote: >> On 14 May 2001, at 19:04, Brian J. Beesley wrote: >> > There is already a mechanism where people can opt in or out of being >> > notified if an assignment is due to expire. >> >> There is? At the risk of looking dim, what is it? > >In the "user information" config window, you enter your email address and >there's a checkbox to "receive email from Primenet server if exponents are >about to expire". I can't find this in my copy (Prime95 20.6.1). Nathan _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
On Mon, 14 May 2001 17:27:19 -0700, Aaron Blosser wrote: >> On 14 May 2001, at 19:04, Brian J. Beesley wrote: >> > There is already a mechanism where people can opt in or out of being >> > notified if an assignment is due to expire. >> >> There is? At the risk of looking dim, what is it? > >In the "user information" config window, you enter your email address and >there's a checkbox to "receive email from Primenet server if exponents are >about to expire". I can't find this in my copy (Prime95 20.6.1). Nathan _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
> On 14 May 2001, at 19:04, Brian J. Beesley wrote: > > There is already a mechanism where people can opt in or out of being > > notified if an assignment is due to expire. > > There is? At the risk of looking dim, what is it? In the "user information" config window, you enter your email address and there's a checkbox to "receive email from Primenet server if exponents are about to expire". _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
On 13 May 2001, at 19:41, Nathan Russell wrote: > >Another nice thing would be if people who have submitted several results > >that don't match other people's results they could be notified that they > >may have a hardware problem. > > I can't help wondering whether some users would find that to be overly > invasive or startling; however, if I had such a problem - especially > one that could cause slow thermal damage - I would want to know about > it. There is already a mechanism where people can opt in or out of being notified if an assignment is due to expire. Is it reasonable to ask that this may also be used to notify the user if/when it is discovered that they have submitted a result which has turned out to be incorrect? There are two practical difficulties with this approach: (1) the server doesn't know: George discovers discrepancies when he processes PrimeNet transactions into his master database; (2) by the time the discrepancy is found, some considerable time may have elapsed (when are exponents in the 12M range going to get routine double-checks?) and so the reliability or otherwise of the hardware involved in the original test may well be a moot point. > > I deal with altogether too many people on other mailing lists and > newsgroups who believe that it is normal for their machine to take two > attempts to make it through a 25-minute kernel upgrade. Um, upgrading a kernel is essentially nothing worse than a reboot! But yes, there are some people out there with _very_ dodgy hardware. > Granted, a > 5-week GIMPS run is a more stringent criterion, but AFAIK most > machines /should/ be able to survive without more than 1-2 errors a > year (I've had two since I started last January). I agree entirely, though there are causes of errors which are not related to hardware problems per se. Seriously noisy utility power supply and memory corruption due to badly behaved applications running on insecure operating systems probably claim a fair proportion of the victims. Regards Brian Beesley _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
Chris, I don't think he was bashing Outlook PER SE -- just the version number in question. There have been MANY MANY security fixes to OE since that release, which came with Internet Explorer FOUR a few years back. Even the granola OE that comes with IE 5 (v5.00.2314.1300) has been radically security-patched since release At 12:50 PM 5/12/01 +0100, you wrote: > > > > You should use another MailClient as Microsoft Outlook Express > 4.72.3110.1 8) > > Didn't you read all the bad things about Mailwurms etc? > >Sorry, I just felt the urge to say this. There is nothing particualarily >bad about Outlook Express, these various viruses require you to excute >attachments, and you can do that in any mail client.. If any other mail >client gets as popular as OE, then it will start to have viruses aimed at >it's address book too! > >Chris > > > regards, > > > Mohk > > > > > > _ > > 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 _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
-Original Message- From: George Woltman <[EMAIL PROTECTED]> To: Achim Passauer <[EMAIL PROTECTED]>; [EMAIL PROTECTED] <[EMAIL PROTECTED]> Date: 12 May 2001 15:41 Subject: Re: Mersenne: missing exponents? >Scott/Entropia gave me a simple tool to do some remote server database >maintenance. I can schedule triple-checks by essentially telling the server >to forget about the double-check result it already has. I assume that means that it forgets that a result has been returned. The /value/ that was returned should not be forgotten. >Hope that helps, >George Daran G. _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
On Sat, 12 May 2001 10:22:06 -0400, George Woltman wrote: >Why did this affect the server's counts? Well, that's a long story. It has to >do with design decisions (compromises actually) made at Primenet's inception. >Primenet's database is a subset of the master database which I maintain >3000 miles away from the server. In an ideal world there would only be one >database maintained by the server and all database maintenance (like >triple-checks) would be handled automatically. As it stands, I notice that PrimeNet is given assignments only a few tens of thousand of exponents in advance. Is this done so that you have more flexibility, or is it a technical issue with the number of exponents the server can handle? Nathan _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
On Sat, 12 May 2001 16:38:47 -0400, Jud McCranie wrote: >At 08:14 PM 5/12/2001 +, Brian J. Beesley wrote: > >rather small, so the reason a third or fourth run is neccessary is >>very probably because results with mismatching residuals are being >>submitted for some reason. Most probably random glitches? > >Another nice thing would be if people who have submitted several results >that don't match other people's results they could be notified that they >may have a hardware problem. I can't help wondering whether some users would find that to be overly invasive or startling; however, if I had such a problem - especially one that could cause slow thermal damage - I would want to know about it. I deal with altogether too many people on other mailing lists and newsgroups who believe that it is normal for their machine to take two attempts to make it through a 25-minute kernel upgrade. Granted, a 5-week GIMPS run is a more stringent criterion, but AFAIK most machines /should/ be able to survive without more than 1-2 errors a year (I've had two since I started last January). Nathan _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
At 08:14 PM 5/12/2001 +, Brian J. Beesley wrote: rather small, so the reason a third or fourth run is neccessary is >very probably because results with mismatching residuals are being >submitted for some reason. Most probably random glitches? Another nice thing would be if people who have submitted several results that don't match other people's results they could be notified that they may have a hardware problem. ++ | Jud McCranie | || | former temporary part-time adjunct | | instructor of a minor university | ++ _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
On 12 May 2001, at 10:22, George Woltman wrote: > I did this yesterday. Not all exponents are triple checks, some were exponents > that were never added to the servers list of exponents to double-check. It so happens I grabbed 7 DC assignments around 4.9 million this morning. In George's hrf3 database file (the version dated May 6th), two of them have one entry, two have two entries and three have three entries. Obviously this is a small sample, but this appears to suggest a high rate of submission of results with mismatching residuals. In the case of each of the three exponents with three completed LL tests, one of these was done using an old version which did not support offset whilst the other two were done with versions which do support variable offset. The chance of offsets matching (thus making the double check invalid even if the residuals match) is rather small, so the reason a third or fourth run is neccessary is very probably because results with mismatching residuals are being submitted for some reason. Most probably random glitches? > > To make matters worse, Primenet was not originally designed to > hand out double-checking assignments. This has resulted in some minor > glitches, especially when double-checking and first-time checking ranges > overlap. > > Scott/Entropia gave me a simple tool to do some remote server database > maintenance. I can schedule triple-checks by essentially telling the server > to forget about the double-check result it already has. Presumably what happens is as follows: (a) if a _first_ test result is submitted in this range, PrimeNet "chalks it up" as a "cleared exponent"; then George recycles the exponent for double-checking, and it loses its "cleared" status; (b) when a DC assignment completes, again PrimeNet marks the exponent as "cleared"; if it turns out that the residuals don't match, or (on the odd occasion) the double check is invalid because the offsets match, the exponent has to be recycled and again the "cleared" status count drops. > > This is not a setback for the project. To get accurate counts of the master > database, visit http://www.mersenne.org/status.htm. There you will see > that 157,484 exponents have been double-checked and 127,720 exponents > have been tested once. Yes, I fail to see how _any_ completed assignment can possibly set the project back! Regards Brian Beesley 1775*2^332181+1 is prime! (10 digits) Discovered 22-Apr-2001 _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
At 04:52 PM 5/12/2001 +0100, Chris Jefferson wrote: >Haven't we had enough discussions about taking bnumbers people are takingf >a long time to test / not chexcking uin very often? :) Sorry if that has been covered, but I just got back on the list after being off for several months. ++ | Jud McCranie | || | former temporary part-time adjunct | | instructor of a minor university | ++ _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
On Sat, 12 May 2001 11:27:34 -0400, Jud McCranie wrote: >At 10:22 AM 5/12/2001 -0400, George Woltman wrote: > >>Dietmar's guess was accurate. Six weeks ago there were grumblings on the >>list that we were making slow progress on double-checking milestones. I >>promised to make monthly checks of my database and the server's database >>and make exponents available for triple-checking when necessary. > >Checking the status page, we seem to be stuck on 26 exponents between >6,325,000 and 6,972,593 - that haven't had one LL test. Doesn't that most likely mean that those exponents have been checked out, and allowed to expire, multiple times? Nathan _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
> > Checking the status page, we seem to be stuck on 26 exponents between > 6,325,000 and 6,972,593 - that haven't had one LL test. I've been double > checking exponents in this range for months (and getting them done at the > rate of more than 1 per month). I've been double checking because that is > "work makes the most sense", but does it make sense to double check this > range when there are untested ones? If these 26 were actually being > tested, they would be knocked off at the rate of at least one per day, and > it has been a while since one has been finished. Haven't we had enough discussions about taking bnumbers people are takingf a long time to test / not chexcking uin very often? :) Chris > > > > > ++ > | Jud McCranie | > || > | former temporary part-time adjunct | > | instructor of a minor university | > ++ > > > _ > 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
Re: Mersenne: missing exponents?
At 10:22 AM 5/12/2001 -0400, George Woltman wrote: >Dietmar's guess was accurate. Six weeks ago there were grumblings on the >list that we were making slow progress on double-checking milestones. I >promised to make monthly checks of my database and the server's database >and make exponents available for triple-checking when necessary. Checking the status page, we seem to be stuck on 26 exponents between 6,325,000 and 6,972,593 - that haven't had one LL test. I've been double checking exponents in this range for months (and getting them done at the rate of more than 1 per month). I've been double checking because that is "work makes the most sense", but does it make sense to double check this range when there are untested ones? If these 26 were actually being tested, they would be knocked off at the rate of at least one per day, and it has been a while since one has been finished. ++ | Jud McCranie | || | former temporary part-time adjunct | | instructor of a minor university | ++ _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
Hi all, At 12:33 PM 5/12/2001 +0200, Achim Passauer wrote: >Dietmar, thanks for your answer. Well that might be an explanation but to >move thousands of exponents from the cleared list to the still-to-do-list >would also mean a major setback, wouldn´t it? And I´d highly appreciate to >be informed about that by Entropia or George. Dietmar's guess was accurate. Six weeks ago there were grumblings on the list that we were making slow progress on double-checking milestones. I promised to make monthly checks of my database and the server's database and make exponents available for triple-checking when necessary. I did this yesterday. Not all exponents are triple checks, some were exponents that were never added to the servers list of exponents to double-check. Why did this affect the server's counts? Well, that's a long story. It has to do with design decisions (compromises actually) made at Primenet's inception. Primenet's database is a subset of the master database which I maintain 3000 miles away from the server. In an ideal world there would only be one database maintained by the server and all database maintenance (like triple-checks) would be handled automatically. To make matters worse, Primenet was not originally designed to hand out double-checking assignments. This has resulted in some minor glitches, especially when double-checking and first-time checking ranges overlap. Scott/Entropia gave me a simple tool to do some remote server database maintenance. I can schedule triple-checks by essentially telling the server to forget about the double-check result it already has. This is not a setback for the project. To get accurate counts of the master database, visit http://www.mersenne.org/status.htm. There you will see that 157,484 exponents have been double-checked and 127,720 exponents have been tested once. Hope that helps, George _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
> > You should use another MailClient as Microsoft Outlook Express 4.72.3110.1 8) > Didn't you read all the bad things about Mailwurms etc? Sorry, I just felt the urge to say this. There is nothing particualarily bad about Outlook Express, these various viruses require you to excute attachments, and you can do that in any mail client.. If any other mail client gets as popular as OE, then it will start to have viruses aimed at it's address book too! Chris > > regards, > > Mohk > > > _ > 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
Re: Mersenne: missing exponents?
Achim Passauer wrote: > Hi all again, > > Dietmar, thanks for your answer. Well that might be an explanation but to > move thousands of exponents from the cleared list to the still-to-do-list > would also mean a major setback, wouldn´t it? And I´d highly appreciate to > be informed about that by Entropia or George. > > Regards > Achim > > PS: sorry that my last mail was HTML, hope that this is pure ASCII > again. All exponents are tested twice, this also means they appear twice in the cleared stats, so if 1000 1st time checked exponents are released for double checks the cleared since last sync stats for primenet go down by 1000 and this is in that case not a major setback (not a setback at all), that figure goes down when database syncs take place and when first time checked exponent ranges are released for double check, strictly speaking the figure going down by a large value frequently shows that we are making major progress! (The number should more or less remain constant) Martijn _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
At 12:33 12.05.2001, you wrote: >Hi all again, > >Dietmar, thanks for your answer. Well that might be an explanation but to >move thousands of exponents from the cleared list to the still-to-do-list >would also mean a major setback, wouldn´t it? And I´d highly appreciate to >be informed about that by Entropia or George. > >Regards >Achim > >PS: sorry that my last mail was HTML, hope that this is pure ASCII >again. You should use another MailClient as Microsoft Outlook Express 4.72.3110.1 8) Didn't you read all the bad things about Mailwurms etc? regards, Mohk _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
Hi all again, Dietmar, thanks for your answer. Well that might be an explanation but to move thousands of exponents from the cleared list to the still-to-do-list would also mean a major setback, wouldn´t it? And I´d highly appreciate to be informed about that by Entropia or George. Regards Achim PS: sorry that my last mail was HTML, hope that this is pure ASCII again. _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: missing exponents?
Hi Achim, have a look a the available exponents for double checking. George has made several thousend new exponents available. Maybe the new exponents hadn't been double checked before or previous double checking results didn't match. Therefore he had to do a 'small synchronization' at some ranges to remove older double checking results. Regards Dieter -Ursprüngliche Nachricht- Von: Achim Passauer An: [EMAIL PROTECTED] Gesendet: Samstag, 12. Mai 2001 08:06 Betreff: Mersenne: missing exponents? Hi all, I was a bit astonished this morning (0500 UTC) when I saw that about 50.000 exponents have been cleared since the last database synch. A few days ago there were about 53.000 to 54.000 of them. Were have 3.000 to 4.000 exponents gone? Any explanation? RegardsAchim
Mersenne: missing exponents?
Hi all, I was a bit astonished this morning (0500 UTC) when I saw that about 50.000 exponents have been cleared since the last database synch. A few days ago there were about 53.000 to 54.000 of them. Were have 3.000 to 4.000 exponents gone? Any explanation? RegardsAchim
Mersenne: Missing Exponents ?!?!?
Did anybody else notice that the exponents in the range between 33,250,000 and 33,300,000 aren't being offered up by the PrimeNet server ?!?!?That a whole 1328 exponents that doesn't even seem to be available for tssting The assigned exponents report shows the assignments jumping from 33,249,991 to 33,300,011... Eric _ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
