Re: Mersenne: scientific american
Article seems to detail tightly-coupled Beowulf clusters, not the sort of internet-linked distributed computing we are doing. Have I got the wrong article? I'm looking at: http://sciam.com/2001/0801issue/0801hargrove.html Best Wishes, Stefanovic - Original Message - From: Spike Jones [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, July 21, 2001 10:22 PM Subject: Mersenne: scientific american There is an article this in the new Scientific American on distributed computing, but no mention of GIMPS. I feel cheated. spike _ 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: scientific american
Yes the article does go into great detail re Beowulf clusters, but the penultimate paragraph contains: An equally important trend is the development of networks of PCs that contribute their processing power to a collective task. An example is SETI@home, ... As usual, we get ignored while SETI gets all the publicity. -Original Message- From: xqrpa [EMAIL PROTECTED] To: [EMAIL PROTECTED] [EMAIL PROTECTED]; [EMAIL PROTECTED] [EMAIL PROTECTED] Date: Sunday, July 22, 2001 2:43 AM Subject: Re: Mersenne: scientific american Article seems to detail tightly-coupled Beowulf clusters, not the sort of internet-linked distributed computing we are doing. Have I got the wrong article? I'm looking at: http://sciam.com/2001/0801issue/0801hargrove.html Best Wishes, Stefanovic - Original Message - From: Spike Jones [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, July 21, 2001 10:22 PM Subject: Mersenne: scientific american There is an article this in the new Scientific American on distributed computing, but no mention of GIMPS. I feel cheated. spike _ 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: scientific american
The reason is quiet simple: SETI is successful and GIMPS is not. Don't worry, SETI junks million of CPU years while GIMPS solve complex math. problems (8 Yes the article does go into great detail re Beowulf clusters, but the penultimate paragraph contains: An equally important trend is the development of networks of PCs that contribute their processing power to a collective task. An example is SETI@home, ... As usual, we get ignored while SETI gets all the publicity. _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: scientific american
mohk wrote: Don't worry, SETI junks million of CPU years... Unless they actually find something. Cheers... Russ _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: scientific american
LOL ;) Are we alone? 1) no, we found something 2) dunno :) I guess searching a needle in a haystack is less complicated. At 16:10 22.07.2001, you wrote: mohk wrote: Don't worry, SETI junks million of CPU years... Unless they actually find something. Cheers... Russ _ 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
Mersenne: Re: scientific american
On Sun, Jul 22, 2001 at 04:53:50PM +0200, mohk wrote: Are we alone? 1) no, we found something 2) dunno :) Are there more than 38 (aren't we at 38 now? ;-) ) Mersenne primes? 1) No, we found something. 2) Dunno :-) Now, of course, we _think_ there are more Mersenne primes out there, while SETI is more of a guess ;-) /* Steinar */ -- Homepage: http://www.sesse.net/ _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: Re: scientific american
On Sun, 22 Jul 2001 17:39:31 +0200, Steinar H. Gunderson [EMAIL PROTECTED] wrote: On Sun, Jul 22, 2001 at 04:53:50PM +0200, mohk wrote: Are we alone? 1) no, we found something 2) dunno :) Are there more than 38 (aren't we at 38 now? ;-) ) Mersenne primes? 1) No, we found something. 2) Dunno :-) Now, of course, we _think_ there are more Mersenne primes out there, while SETI is more of a guess ;-) Do you think SETI will let us ask the aliens if they've found further Mersenne primes? If so, are they eligible for the EFF prize, and do we have any chance of independently verifying a gigaprime in a sane amount of time? :-) This, I suppose, is where distributed.net has the advantage - aliens are unlikely to be looking for the specific key to the RC5 challenge :-) Nathan _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: scientific american
On Sun, 22 Jul 2001 05:48:52 -0500, Steve Harris wrote: Yes the article does go into great detail re Beowulf clusters, but the penultimate paragraph contains: An equally important trend is the development of networks of PCs that contribute their processing power to a collective task. An example is SETI@home, ... As usual, we get ignored while SETI gets all the publicity. I agree that this is unfair, especially given that SETI is probably the only project to have more than ten thousand users and NO results (putting aside projects like some of the commercial ones that have been running a relatively short time). I think the reason SETI attracts so much of the public attention is simply that anyone can imagine the significance of playing a role in discovering aliens, while the cash prizes for GIMPS (while larger than those for distributed.net) aren't something that really attracts people's attention at first glance. Nathan _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Mersenne: P-1
I assume that p-1 factorisation is only done once, i.e., it is only done prior to a DC if it wasn't done at the time of the first-time test. Isn't there a case for splitting off p-1 into an entirely separate work unit? That way machines with insufficient memory either to run stage 2 at all, or to do so with a good chance of success, could be given pretested exponants for first-time/DC LLs Regards Daran G. _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: scientific american
Actually given the right imaging equipment around the haystack locating a needle in a haystack should take less than 1 minute. A low cost version w/o imaging could probaly do it in about 1 hour (strong magnet + pulling the haystack out of order) - Original Message - From: mohk [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Sunday, July 22, 2001 4:53 PM Subject: Re: Mersenne: scientific american I guess searching a needle in a haystack is less complicated. _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: scientific american
Most people just find aliens more interesting than primes. One doesn't find articles about prime numbers in the tabloids. I didn't join GIMPS for the cash prizes; I'd have a better chance buying a lottery ticket. But I'm sure many people do join for that reason, probably the same ones who do buy lottery tickets. And if I do happen to find a mersenne prime, the article will appear in places like Scientific American, not the National Enquirer... ;~) Steve -Original Message- From: Nathan Russell [EMAIL PROTECTED] Date: Sunday, July 22, 2001 12:06 PM I think the reason SETI attracts so much of the public attention is simply that anyone can imagine the significance of playing a role in discovering aliens, while the cash prizes for GIMPS (while larger than those for distributed.net) aren't something that really attracts people's attention at first glance. Nathan _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
RE: Mersenne: scientific american
Once again, my friends, aliens turn out to be far sexier than prime numbers. I don't see that ever changing! Take care, --buck -- Bryon Buck [EMAIL PROTECTED] [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Russel Brooks Sent: Sunday, July 22, 2001 10:11 AM To: [EMAIL PROTECTED] Subject: Re: Mersenne: scientific american mohk wrote: Don't worry, SETI junks million of CPU years... Unless they actually find something. Cheers... Russ _ 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
