Mersenne Digest Tuesday, March 27 2001 Volume 01 : Number 833 ---------------------------------------------------------------------- Date: Sun, 25 Mar 2001 02:08:59 -0800 From: "John R Pierce" <[EMAIL PROTECTED]> Subject: Re: Mersenne: Getting new GIMPSers > Hmm ... my comp has NO idle time anymore (8 even with prime95 running 24/7 on my Windows2000 system, it seems to come up with a FEW idle cycles. I figure its when prime95 gets paged out or something. I rebooted a couple of hours ago after photoshop blew up and left the system kinda crispy, in the past 2h 48m, I show 3 minutes of idle time has accumulated. 2:43 has gone to prime95. the rest to everything else i've done (hardly none to a number of edit windows, web browsers, etc). - -jrp _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sun, 25 Mar 2001 11:11:07 -0000 From: "Brian J. Beesley" <[EMAIL PROTECTED]> Subject: Re: Mersenne: Getting new GIMPSers On 25 Mar 2001, at 2:08, John R Pierce wrote: > > Hmm ... my comp has NO idle time anymore (8 > > even with prime95 running 24/7 on my Windows2000 system, it seems to > come up with a FEW idle cycles. Yes, to enable low-priority tasks to respond to events (mouse clicks etc) the scheduler makes sure every process - even the null process - gets a few cycles every so often. If you have a "normal" number of processes running you will probably have only about 99% of the actual processor cycles available to _all_ user processes. What is "normal?" Well, the task manager on my Win2K system shows 28 processes when all applications are shut. E����&�� _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sun, 25 Mar 2001 10:03:01 -0500 From: Pierre Abbat <[EMAIL PROTECTED]> Subject: Re: Mersenne: Getting new GIMPSers On Sun, 25 Mar 2001, John R Pierce wrote: >> Hmm ... my comp has NO idle time anymore (8 > >even with prime95 running 24/7 on my Windows2000 system, it seems to come up >with a FEW idle cycles. I figure its when prime95 gets paged out or >something. I rebooted a couple of hours ago after photoshop blew up and >left the system kinda crispy, in the past 2h 48m, I show 3 minutes of idle >time has accumulated. 2:43 has gone to prime95. the rest to everything >else i've done (hardly none to a number of edit windows, web browsers, etc). How does idle time accrue *to a process*? Idle time is when the CPU is not executing any process. phma _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sun, 25 Mar 2001 19:09:02 +0200 From: "Steinar H. Gunderson" <[EMAIL PROTECTED]> Subject: Mersenne: Re: Getting new GIMPSers On Sun, Mar 25, 2001 at 10:03:01AM -0500, Pierre Abbat wrote: >How does idle time accrue *to a process*? Idle time is when the CPU is not >executing any process. Just like the brain, your computer can not `do nothing'. `Idle' time would most likely be spent in some sort of loop, possibly a HLT loop, keeping your CPU cool :-) /* Steinar */ - -- Homepage: http://members.xoom.com/sneeze/ _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sun, 25 Mar 2001 15:48:28 -0500 From: Jeff Woods <[EMAIL PROTECTED]> Subject: Re: Mersenne: Getting new GIMPSers At 10:03 AM 3/25/01 -0500, you wrote: > >even with prime95 running 24/7 on my Windows2000 system, it seems to come up > >with a FEW idle cycles. I figure its when prime95 gets paged out or > >How does idle time accrue *to a process*? Idle time is when the CPU is not >executing any process. On a Win32 system, the idle time is kept track of by the idle PROCESS (a thread or task operating autonomously, for you *n*x types). It is by hooking into and pseudo-taking over this process that Prime95 does its work. Win32 tracks ALL processes by (I think) 32 different "priority" levels, broken into two different tiers (with only five basic priority levels from low, midium low, etc, to high). The Idle Process is but one more process running next to the Kernel, GDI, and other messaging and system processes as well as user applications. It *will* get the occasional cycle, lest it never be accessed at all, even when Prime95 is running. _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sun, 25 Mar 2001 13:03:00 -0800 From: "John R Pierce" <[EMAIL PROTECTED]> Subject: Re: Mersenne: Getting new GIMPSers > How does idle time accrue *to a process*? Idle time is when the CPU is not > executing any process. in virtually every multitasking OS, there is a special "IDLE" process. This is usually something as simple as... idleloop: HLT JMP idleloop and this process is always 'ready' to run, and always at the LOWEST system priority [many OS's have a special 'Idle' priority used only for this process]. That way the task dispatcher *always* has somewhere to go if no other process is ready. The "HLT" instruction will be awoken at the very next interrupt, and since anything that can cause a process to wake up neccessarily involves a interrupt, this means no time is wasted. HLT also causes most CPUs to enter a reduced power state, running many degrees cooler (when I exit prime95, my P3-933 goes from ~118F to ~80F in a very short time). - -jrp _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sun, 25 Mar 2001 16:32:42 -0500 From: Nathan Russell <[EMAIL PROTECTED]> Subject: Re: Mersenne: Re: Getting new GIMPSers - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sun, 25 Mar 2001 19:09:02 +0200, Steiner wrote: >On Sun, Mar 25, 2001 at 10:03:01AM -0500, Pierre Abbat wrote: >>How does idle time accrue *to a process*? Idle time is when the CPU >>is not executing any process. > >Just like the brain, your computer can not `do nothing'. `Idle' time >would most likely be spent in some sort of loop, possibly a HLT >loop, keeping your CPU cool :-) Very true, AFAIK. This can be especially important with portable computers, which can be improperly cooled. As Brian said, Windows gives a small share of CPU time to every process (this can be observed by running a game or other program that uses 100% CPU; when you look back, Prime95 will have been running at ten percent or less of normal speed (I've seen timings go from 76 ms to 2 seconds), but it will not have stopped completely. IIRC, this is part of the reason some other operating systems are slightly better - they allow a program to sleep and wait for an event, such as a mouse click, and begin running only when it needs to deal with said event. Nathan - -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 6.5.8 for non-commercial use <http://www.pgp.com> iQA/AwUBOr5j+IvPBwdDF2xqEQKCbQCggwZXnSkJfbHB1D/o+OKH11p8VhYAoKfN MpDaR5iyY8LJ9JVl5sG0UZ46 =ZihA - -----END PGP SIGNATURE----- _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sun, 25 Mar 2001 16:36:31 -0500 From: Nathan Russell <[EMAIL PROTECTED]> Subject: Re: Mersenne: First illegal prime? - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Wed, 21 Mar 2001 22:10:06 -0000, Brian J. Beesley wrote (re gray bits): >This is an example of the sort of "copy protection" I find >acceptable, because I can make as many perfect copies as I like for >my own use; nonetheless the copies can be identified as such, for >the purposes of prosecuting anyone who happens to be trading them >in >place of genuine original pressings. The same, of course, is true of the various shareware programs - if someone's trading a program with a registration key purchased with my credit card, it's reasonable for the author to conclude that I had a role in distributing it. Nathan - -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 6.5.8 for non-commercial use <http://www.pgp.com> iQA/AwUBOr5k3YvPBwdDF2xqEQJdiQCgvio+Yy2l2NkiRG66yLtOrytHUU4AoItF dDml6djfqEGobWUoaT8bdgp0 =+Lhm - -----END PGP SIGNATURE----- _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sun, 25 Mar 2001 16:47:15 -0500 From: Nathan Russell <[EMAIL PROTECTED]> Subject: Re: Mersenne: First illegal prime? - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Wed, 21 Mar 2001 18:12:49 -0000, Brian J. Beesley wrote: >On 20 Mar 2001, at 18:42, Nathan Russell wrote: >> >> Slashdot takes a particular interest in this program because many >> of their editors and members believe that CSS is an infringment of >> civil rights - specifically, their right to play DVDs on the >> operating system of their choice. > >And I agree. Totally. I thought there was also a problem that DVD >movies are offered later and at higher prices in some markets, >therefore CSS is seen as an infringement of consumer's rights to buy > a product in the cheapest market. That's true as well. In particular, some people have had problems when they moved between regions and their movies could no longer be played after the old player broke. There was a mildly amusing article on Slashdot several weeks ago about how, when the international space station was resupplied, DVD movies were among the items the astronauts requested as part of their personal weight allowance. There was discussion about which region outer space was in, and whether the astronauts would be breaking a law every several minutes as they passed between regions :) (As it happens, there's one region for such 'special international venues' as cruise ships, and that's how it's dealt with) >> Of course, (in theory) that could be seen as a disproof of all >> copyright - there's nothing that does not already exist. Of >> course, thinking of the number of possible English phrases - never >> mind books, or images - is a fairly easy way to come up with >> numbers that dwarf the Mersennes. > >Nevertheless I have demonstrated a (for the time being, impractical >- but roll on quantum computing) _purely mechanical_ way of >generating all that content; this nullifies the whole idea of >"intellectual >property", and the legal concept of copyright that goes with it. A mixed blessing to be sure - without "intellectual property", the various free software groups would no longer have assurance that their programs would be distributed according to the license requirements. >> Unfortunately for them, that 40-bit encryption is now hard-coded >> into every DVD player; they can no more easily change it than they >> can suddenly start selling videotapes for the Betamax VCR. > >Tough. That's _their_ problem, not ours. The fact is that (for >better or for worse) the DeCSS cat is well and truly out of the >bag, and I don't see how lawyers are going to be able to persuade >it to get back in. My conclusion, to date, is that they've managed to dig themselves in deeper by encouraging the entire Internet community to go out of their way to spread copies of DeCSS (and, more importantly, the included tables, which IIRC are not part of the original 'illegal prime'). If I have a free week or so this summer, I might start hunting for an illegal prime corresponding to a patch to add those tables... >Regards >Brian Beesley Nathan - -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 6.5.8 for non-commercial use <http://www.pgp.com> iQA/AwUBOr5nYIvPBwdDF2xqEQJjHwCeMdTlLiVicI69CWQuIkh9Hzg/pckAmwWI Usr2EAPwnW0XvZg4mZjoUBCK =Z/uY - -----END PGP SIGNATURE----- _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Mon, 26 Mar 2001 01:15:33 +0200 From: "Shot" <[EMAIL PROTECTED]> Subject: Re: Mersenne: First illegal prime? On 25 Mar 2001, at 16:47, Nathan Russell wrote: > There was a mildly amusing article on Slashdot several weeks ago > about how, when the international space station was resupplied, DVD > movies were among the items the astronauts requested as part of > their personal weight allowance. > > There was discussion about which region outer space was in, and > whether the astronauts would be breaking a law every several > minutes as they passed between regions :) > > (As it happens, there's one region for such 'special international > venues' as cruise ships, and that's how it's dealt with) Stragne - I heard that Sony equipped the astronauts with a player capable of playing any DVD (a player with disabled region-lock check)... Cheers, - -- Shot - -- - -----------------------------------------------> http://shot.prv.pl/ GCS/CC/IT/O d- s:>+: a-->? C++(+++) ULS P+(--) L(+) W++$ N++ w(--) PS+(++) PGP- t 5 X- R tv- b++>+++ DI D G++ e>* h-->--- r++>+++ y+** - ---------------------> Geek Code Decoder: http://www.ebb.org/ungeek/ Last words in a RPG game: Ummm... Do I have a gas mask? _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sun, 25 Mar 2001 18:56:56 -0500 From: Nathan Russell <[EMAIL PROTECTED]> Subject: Re: Mersenne: First illegal prime? - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Mon, 26 Mar 2001 01:15:33 +0200, Shot wrote: >On 25 Mar 2001, at 16:47, Nathan Russell wrote: > >> There was a mildly amusing article on Slashdot several weeks ago >> about how, when the international space station was resupplied, >> DVD movies were among the items the astronauts requested as part >> of >> their personal weight allowance. >> >> There was discussion about which region outer space was in, and >> whether the astronauts would be breaking a law every several >> minutes as they passed between regions :) >> >> (As it happens, there's one region for such 'special international >> venues' as cruise ships, and that's how it's dealt with) > >Stragne - I heard that Sony equipped the astronauts with a player >capable of playing any DVD (a player with disabled region-lock >check)... I didn't know it was possible to disable the check; I'd thought it was somehow integrated into the cryptosystem. If it is possible, that means the players are being deliberately designed to check, which could place the manufacturers at a legal disadvantage if they're ever accused of interfering with free trade or any such - which I, as a perpetual optimist, devotely hope they eventually will be. Nathan - -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 6.5.8 for non-commercial use <http://www.pgp.com> iQA/AwUBOr6FxYvPBwdDF2xqEQIqfQCfZAfMbECSFRqW2w8lGp1to9PcVOEAoJgO 9/x4cRPN3H3nRCogjDJemkAA =GnZh - -----END PGP SIGNATURE----- _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sun, 25 Mar 2001 19:59:02 -0500 From: Pierre Abbat <[EMAIL PROTECTED]> Subject: Re: Mersenne: Getting new GIMPSers On Sun, 25 Mar 2001, Jeff Woods wrote: >At 10:03 AM 3/25/01 -0500, you wrote: > >> >even with prime95 running 24/7 on my Windows2000 system, it seems to come up >> >with a FEW idle cycles. I figure its when prime95 gets paged out or >> >>How does idle time accrue *to a process*? Idle time is when the CPU is not >>executing any process. > >On a Win32 system, the idle time is kept track of by the idle PROCESS (a >thread or task operating autonomously, for you *n*x types). It is by >hooking into and pseudo-taking over this process that Prime95 does its work. You're ignoring the context of my question. The context was: >even with prime95 running 24/7 on my Windows2000 system, it seems to come up >with a FEW idle cycles. I figure its when prime95 gets paged out or >something. I rebooted a couple of hours ago after photoshop blew up and >left the system kinda crispy, in the past 2h 48m, I show 3 minutes of idle >time has accumulated. 2:43 has gone to prime95. the rest to everything >else i've done (hardly none to a number of edit windows, web browsers, etc). I know that there's an idle process (#0), an init process (#1), and many other processes in a computer. Idle time accrues to the idle process. What I don't understand is how 2:43 of the idle time was accounted to prime95 and the other seventeen seconds to other processes - it should all have been accounted to the idle process. phma _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sun, 25 Mar 2001 23:06:09 EST From: [EMAIL PROTECTED] Subject: Mersenne: small bug in Mlucas 2.7b error checking Date: Sun, 25 Mar 2001 20:00 PST To: [EMAIL PROTECTED] Subj: small bug in Mlucas 2.7b error checking In doing some testing of exponents very near the upper limit of what Mlucas 2.7b allows for 640K FFT length, I discovered a bug which in some case will allow per- iteration roundoff checking to be turned off when the run passes the iteration number (call it ITER_ECHECK_OFF) set in the mlucas.cfg file, even when the code detects a dangerous fractional error in the iterations leading up to ITER_ECHECK_OFF. (In which case roundoff checking is supposed to remain on for the rest of the LL test irrespective of the value of ITER_ECHECK_OFF.) To see whether you need to take any action, do a 'grep err *stat' in your mersenne test directory. (And until v2.7c comes out, repeat this whenever your current run has gotten about a day into its latest exponent.) If your current exponent has yielded no error warnings, you need do nothing. If you see one or more error warnings, do one of the following (your choice): 1) Kill and restart the run. On restart the program parses the .stat file and if it finds one or more fractional error warnings it sets the appropriate internal flag which makes error checking stay on for the entire run. 2) Set the value of ITER_ECHECK_OFF on line 4 of the mlucas.cfg file to some value >= your current exponent. After the exponent finishes, you can set it back to the old value. (If there's not a big speedup from turning error checking off on your system, you may want to leave it at a large value.) Cheers, - -Ernst _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sun, 25 Mar 2001 21:52:38 -0800 From: "John R Pierce" <[EMAIL PROTECTED]> Subject: Re: Mersenne: Getting new GIMPSers > >even with prime95 running 24/7 on my Windows2000 system, it seems to come up > >with a FEW idle cycles. I figure its when prime95 gets paged out or > >something. I rebooted a couple of hours ago after photoshop blew up and > >left the system kinda crispy, in the past 2h 48m, I show 3 minutes of idle > >time has accumulated. 2:43 has gone to prime95. the rest to everything > >else i've done (hardly none to a number of edit windows, web browsers, etc). > > I know that there's an idle process (#0), an init process (#1), and many other > processes in a computer. Idle time accrues to the idle process. What I don't > understand is how 2:43 of the idle time was accounted to prime95 and the other > seventeen seconds to other processes - it should all have been accounted to the > idle process. my bad. I meant, out of 2h 48m elapsed time, 3m was idle, 2h 43m was prime95, and the rest to various other processes. _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Mon, 26 Mar 2001 07:56:37 +0200 From: [EMAIL PROTECTED] Subject: Mersenne: atomic clock Hi all, it may be a little bit off topic, but could someone please inform the guys operating the server that the atomic clock is (again) about 5-6 minutes behind UTC? I couldn�t find their mail address..... Thanks. Best regards Achim _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sun, 25 Mar 2001 22:13:40 -0800 From: "John R Pierce" <[EMAIL PROTECTED]> Subject: Re: Mersenne: atomic clock > it may be a little bit off topic, but could someone please inform the guys > operating the server that the atomic clock is (again) about 5-6 minutes > behind UTC? I couldn�t find their mail address..... which atomic clock would that be? The US Naval Observatory master clock? http://tycho.usno.navy.mil/time.html probably has contact info. my local server time is referenced to a time server that is a few stratums removed from USNO time, my time seems to stay within about 50mS of USNO at all times. - -jrp _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Mon, 26 Mar 2001 08:34:13 +0200 From: [EMAIL PROTECTED] Subject: Mersenne: atomic clock > But on http://www.mersenne.org/primenet/ you can see a difference of about > 6 minutes (yes I did reload the page!) between the time on that page and > UTC. That happened months ago, came back to normal and now it�s there > again.... > > Current PrimeNet Atomic Clock UTC Time is Monday 26 March 2001, 06:11:40 > > Reload-Time 06:17:23 UTC!! > > Regards > Achim > > -----Urspr�ngliche Nachricht----- > Von: John R Pierce [SMTP:[EMAIL PROTECTED]] > Gesendet am: Montag, 26. M�rz 2001 08:14 > An: [EMAIL PROTECTED] > Cc: Mersenne discussion list > Betreff: Re: Mersenne: atomic clock > > > it may be a little bit off topic, but could someone please inform the > guys > > operating the server that the atomic clock is (again) about 5-6 minutes > > behind UTC? I couldn�t find their mail address..... > > which atomic clock would that be? The US Naval Observatory master clock? > http://tycho.usno.navy.mil/time.html probably has contact info. my > local > server time is referenced to a time server that is a few stratums removed > from USNO time, my time seems to stay within about 50mS of USNO at all > times. > > -jrp > _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Mon, 26 Mar 2001 13:16:08 +0100 From: "Siegmar Szlavik" <[EMAIL PROTECTED]> Subject: Re: Mersenne: More than 10000 athlons!. On Mon, 05 Mar 2001 18:42:42 +0100, Guillermo Ballester Valor wrote: >Last weekend the number of AMD-athlons registered in Primenet has >reached 10000. In few weeks they will be the most popular among GIMPSers >if the actual trend continues. > Since a few days there is a head-to-head race between the p3 and athlon. At the moment it's almost even: Status Summary Report 26 Mar 2001 11:00 (26 Mar 2001 03:00 Pacific) [...] Intel Pentium III : 10710 AMD Athlon : 10711 btw: what about p4-systems? are they counted as p3-systems? Siegmar _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Mon, 26 Mar 2001 15:38:45 +-200 From: Denis Cazor <[EMAIL PROTECTED]> Subject: RE: Mersenne: More than 10000 athlons!. Hello At the end of april, I will use 3 athlon PC instead of one (650, 1000 et 1200). Only 2 computers are connected to internet. So I created 3 different directories for prime95 application, and will try to access the server with only one computer, and different results. How is doing the server ? Is it recognizing the PC ? Is the computer ID unique for the 3 machines ? Is this Ok, or is there a better solution to do this ? (I have read the help file, but need more explainations...) Regards, Denis Cazor >>Last weekend the number of AMD-athlons registered in Primenet has >>reached 10000. In few weeks they will be the most popular among GIMPSers >>if the actual trend continues. > >Since a few days there is a head-to-head race between the p3 and athlon. >At the moment it's almost even: > >Status Summary Report 26 Mar 2001 11:00 (26 Mar 2001 03:00 Pacific) >[...] > Intel Pentium III : 10710 > AMD Athlon : 10711 >btw: what about p4-systems? are they counted as p3-systems? >Siegmar _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Mon, 26 Mar 2001 19:11:16 -0500 From: Nathan Russell <[EMAIL PROTECTED]> Subject: Mersenne: Re: [PrimeNumbers] Complete factorization of Mersenne numbers On Mon, 26 Mar 2001 17:22:47 -0500 (EST), Jack Brennen wrote: >The smallest Mersenne number not yet completely factored is 2^641-1, >unless a breakthrough has happened in the last 2 months. >Interestingly, the second smallest is 2^643-1. The NFSnet page <http://orca.st.usm.edu/~cwcurry/nfs/nfs.html> now reads: C(2,641-) Sieving 92% On a related note - does anyone know whether this project is now active? I sent an email about joining this summer but got no response. Nathan _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Mon, 26 Mar 2001 19:50:14 -0500 From: Nathan Russell <[EMAIL PROTECTED]> Subject: Re: Mersenne: Re: [PrimeNumbers] Complete factorization of Mersenne numbers Sorry - replied to the wrong list there. Nathan _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Mon, 26 Mar 2001 21:16:01 -0600 From: "Tom Cage" <[EMAIL PROTECTED]> Subject: Mersenne: Glucas for the Macintosh, version 2.7b On Monday, 26 March 2001, Guillermo Ballester Valor [EMAIL PROTECTED] released version 2.7b of Glucas which is now available for the Macintosh. G3 and G4 executables along with complete source code may be downloaded at http://www.belchfirecomputing.com/GIMPS/GIMPS.html Happy Hunting, Tom Cage http://www.belchfirecomputing.com **** Math is cheaper than physics !!! **** _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Mon, 26 Mar 2001 19:45:11 -0800 (PST) From: Francois Gouget <[EMAIL PROTECTED]> Subject: Re: Mersenne: First illegal prime? On Sun, 25 Mar 2001, Nathan Russell wrote: > > On Mon, 26 Mar 2001 01:15:33 +0200, Shot wrote: [...] > >Stragne - I heard that Sony equipped the astronauts with a player > >capable of playing any DVD (a player with disabled region-lock > >check)... > > I didn't know it was possible to disable the check; I'd thought it > was somehow integrated into the cryptosystem. It is very possible. My friends in France tell me that many well-known shops where you buy DVD players will unblock them for a fee. > If it is possible, that means the players are being deliberately > designed to check, which could place the manufacturers at a legal > disadvantage if they're ever accused of interfering with free trade > or any such - which I, as a perpetual optimist, devotely hope they > eventually will be. From what I understand manufacturers must implement the check as part of their contract with the DVD-CCA without which they cannot legally implement the decoder (since DVD-CCA is the only licensor of CSS, see what happened to DeCSS). But resellers are not bound by any contract with the DVD-CCA which, as I understand, is how they can legally disable the region-lock. Still, it looks to me like they must get support from the manufacturers to be able to do so, but maybe that's allowed by the manufacturer's contracts. In other words the manufacturers it seems it is legal for the manufacturers to produce DVD players for which the region-lock can be disabled by shorting a connection, switching a dip-switch, changing the ROM (I'm not sure about the remote control secret codes though). And they can publish information about this / sell alternate ROMs, as long as the DVD players they ship enforce the region lock. See: http://www.dvdcca.org/dvdcca/ - -- Francois Gouget [EMAIL PROTECTED] http://fgouget.free.fr/ The nice thing about meditation is that it makes doing nothing quite respectable -- Paul Dean _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Tue, 27 Mar 2001 00:20:15 -0600 From: Ken Kriesel <[EMAIL PROTECTED]> Subject: Re: Mersenne: More than 10000 athlons!. Well, you can add at least 20 P3 cpus to the total, that I run on without the involvement of primenet. Also about 20 Celerons. Prime95 makes a great hardware reliability tester, and has ferreted out numerous mildly flaky RAM modules and a couple bad motherboards. Ken At 01:16 PM 3/26/2001 +0100, Siegmar Szlavik wrote: >On Mon, 05 Mar 2001 18:42:42 +0100, Guillermo Ballester Valor wrote: > >>Last weekend the number of AMD-athlons registered in Primenet has >>reached 10000. In few weeks they will be the most popular among GIMPSers >>if the actual trend continues. >> >Since a few days there is a head-to-head race between the p3 and athlon. >At the moment it's almost even: > >Status Summary Report 26 Mar 2001 11:00 (26 Mar 2001 03:00 Pacific) >[...] > Intel Pentium III : 10710 > AMD Athlon : 10711 > >btw: what about p4-systems? are they counted as p3-systems? > >Siegmar > > > >_________________________________________________________________________ >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 Mar 2001 18:21:19 +0200 From: Guillermo Ballester Valor <[EMAIL PROTECTED]> Subject: Re: Mersenne: Glucas for the Macintosh, version 2.7b Hi: Tom Cage escribi�: > > On Monday, 26 March 2001, Guillermo Ballester Valor [EMAIL PROTECTED] > released version 2.7b of Glucas which is now available for the Macintosh. There is no almost differences between this and v2.7. Klaus Kastens detected a bug for MAc Clients which made the save files incomptible with other platforms. This is fixed in the new version but is important to note that the new save files will no be compatible with v2.7 and older clients. On the other hand, the coincidence of Glucas v.27b and the new Mlucas v2.7b is casual. Ernst, sure I will have to increase the version soon. :) Happy hunting. Guillermo. _________________________________________________________________________ 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 #833 ******************************
