Mersenne Digest V1 #851

2001-05-14 Thread Mersenne Digest
Mersenne Digest Monday, May 14 2001 Volume 01 : Number 851 -- Date: Mon, 14 May 2001 16:14:07 -0400 From: "Joshua Zelinsky" <[EMAIL PROTECTED]> Subject: Re: Mersenne: Re: 26 exponents Nathan Russel wrote:

Mersenne: Differences betwixt NTPrime and Prime95

2001-05-14 Thread Aaron Blosser
> >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.

Re: Mersenne: Re: 26 exponents

2001-05-14 Thread Jud McCranie
At 09:44 PM 5/14/2001 -0400, Nathan Russell wrote: >However, that is still drawing a distinction between new and >experienced users. Well, how about this - new users can get an exponent that has been abandoned several times, but they must check in at least once a month to report the percentage

Re: Mersenne: Re: 26 exponents

2001-05-14 Thread Jud McCranie
At 09:44 PM 5/14/2001 -0400, Nathan Russell wrote: >However, that is still drawing a distinction between new and >experienced users. Well, so what if it does? It is an extremely minor difference. New users would still get first time LL tests - it just means that they wouldn't get exponents t

Re: Mersenne: Re: 26 exponents

2001-05-14 Thread Jud McCranie
At 08:23 PM 5/14/2001 +, Brian J. Beesley wrote: >On 14 May 2001, at 8:45, Nathan Russell wrote: > > > >First of all, as Jud notes, the 'elitism' is already there, in that > different > > >machines get treated differently in the assignments that they are given. > >Sorry, I don't buy that. Eve

Re: Mersenne: Re: 26 exponents

2001-05-14 Thread Nathan Russell
On Mon, 14 May 2001 20:23:45 -, Brian J. Beesley wrote: >On 14 May 2001, at 8:45, Nathan Russell wrote: > >> >First of all, as Jud notes, the 'elitism' is already there, in that different >> >machines get treated differently in the assignments that they are given. (To clarify, I did not writ

Re: Mersenne: missing exponents?

2001-05-14 Thread Nathan Russell
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

Re: Mersenne: Re: 26 exponents

2001-05-14 Thread Nathan Russell
On Sat, 12 May 2001 16:04:17 -0400, Jud McCranie wrote: >At 03:26 PM 5/12/2001 -0400, Nathan Russell wrote: >I think that's more of a 'quick fix', and might make new participants >>feel that GIMPS doesn't trust them. > >Yes, but a new user need not know that they don't get an exponent that has >

Re: Mersenne: missing exponents?

2001-05-14 Thread Aaron Blosser
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 -

Re: Mersenne: missing exponents?

2001-05-14 Thread Nathan Russell
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 th

Re: Mersenne: Purpose of the self-test; also, aren't P4s fast!

2001-05-14 Thread George Woltman
Hi, At 04:41 PM 5/14/2001 -0700, Aaron Blosser wrote: > > That's about a factor six faster than the P2/350 I just sold, > >Hmm... your P4 at 1.3GHz should, on face value, be 3.8 times faster, and >according to George, you should be seeing an extra 3 times improvement in >the P4 execution for an o

Re: Mersenne: Purpose of the self-test; also, aren't P4s fast!

2001-05-14 Thread George Woltman
Hi, At 11:38 PM 5/14/2001 +0100, Thomas Womack wrote: >When I run it on my K62/333 laptop, the self-test tries to test M5242881 >with a 256k FFT, gives an excess-roundoff-error message and dies; this is >presumably a bug. Yes, apparently I broke the old FFT code Another good reason for only

Re: Mersenne: missing exponents?

2001-05-14 Thread Aaron Blosser
> 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

Re: Mersenne: Purpose of the self-test; also, aren't P4s fast!

2001-05-14 Thread Aaron Blosser
> The P4's PSU fan seems to step up a gear when I've been running Prime95 for > a few hours, though the CPU temperature reported by Intel Active Monitor on > my D850GB board doesn't go about 46C. I suspect the P4 probably runs too hot > for it to be possible to build a really quiet solution, but d

Mersenne: Purpose of the self-test; also, aren't P4s fast!

2001-05-14 Thread Thomas Womack
I've just collected the beta of version 21, to run on my P4 at home. When I run it on my K62/333 laptop (which I was using as a portable disc having downloaded the beta at college), the self-test tries to test M5242881 with a 256k FFT, gives an excess-roundoff-error message and dies; this is pres

Overriding assigned exponent type (was Re: Mersenne: Re: 26 exponents)

2001-05-14 Thread Aaron Blosser
> > >Secondly, if - when I ask the server to give me "whatever kind of work makes > > >most sense" - it gives me something else, whether out of spurious concern for > > >my feelings or for any other reason, then not only are the programmers > > >betraying my trust in them, they are also indicating

Mersenne Digest V1 #850

2001-05-14 Thread Mersenne Digest
Mersenne Digest Monday, May 14 2001 Volume 01 : Number 850 -- Date: Sun, 13 May 2001 11:03:50 +0200 From: mohk <[EMAIL PROTECTED]> Subject: Re: Mersenne: Pentium 4 owners - pre-beta prime95 release availabl

Re: Mersenne: Emails and virus (slightly OT) :)

2001-05-14 Thread Aaron Blosser
> >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.. > > Not true! With Outlook Express all you have to do is read the message. > The virus can

Re: Mersenne: Emails and virus (slightly OT) :)

2001-05-14 Thread Aaron Blosser
> > I'll try to keep this a little bit on-topic... Does this mailing list do > > any sort of virus scanning? I know you can't post to the list unless you're > > actually on the list, but any scanning going on? > > No there isn't any virus scanning going on. > > There is however a message limit t

Re: Mersenne: Re: 26 exponents

2001-05-14 Thread Brian J. Beesley
On 14 May 2001, at 8:45, Nathan Russell wrote: > >First of all, as Jud notes, the 'elitism' is already there, in that different > >machines get treated differently in the assignments that they are given. Sorry, I don't buy that. Every system has exactly the same chance of picking up any given a

Re: Mersenne: Pentium 4 owners - pre-beta prime95 release available

2001-05-14 Thread Brian J. Beesley
On 14 May 2001, at 9:08, George Woltman wrote: > At 01:02 AM 5/14/2001 -0700, xqrpa wrote: > >Is ordinary factoring code also present ("Factor Only") and is > >there a corresponding speed-up? > > The factoring code is present but unchanged. Thus, no speedup. ... except for the fact that the sl

Re: Mersenne: Re: 26 exponents

2001-05-14 Thread Joshua Zelinsky
Nathan Russel wrote: >Are you suggesting that, every time George offers exponents to the >members of this mailing list, he should send out a newsletter to every >participant - guaranteeing hundreds or thousands of replies for him to >deal with? I think there may be no good solution to this. Hav

Re: Mersenne: Emails and virus (slightly OT) :)

2001-05-14 Thread Herb Savage
>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.. Not true! With Outlook Express all you have to do is read the message. The virus can be embedde

Re: Mersenne: missing exponents?

2001-05-14 Thread Brian J. Beesley
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

Re: Mersenne: Re: games one can play with genuine composites

2001-05-14 Thread Brian J. Beesley
On 13 May 2001, at 20:06, [EMAIL PROTECTED] wrote: > True, for composite c, not all factors of 2^c - 1 need have form > 2.K.c + 1; for example, if c = 15, 2^c - 1 = 7.31.151, and the > smallest factor, 7, does not have the form 2.K.15 + 1. However, > if we do not know any of the factors of c, th

Re: Mersenne: Emails and virus (slightly OT) :)

2001-05-14 Thread Gordon Irlam
> I'll try to keep this a little bit on-topic... Does this mailing list do > any sort of virus scanning? I know you can't post to the list unless you're > actually on the list, but any scanning going on? No there isn't any virus scanning going on. There is however a message limit that tends to

Mersenne: Emails and virus (slightly OT) :)

2001-05-14 Thread Aaron Blosser
> >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

Re: Mersenne: Re: Primenet exponents (was: missing exponents?)

2001-05-14 Thread Siegmar Szlavik
On Sun, 13 May 2001 20:39:34 -0400, George Woltman wrote: >At 07:46 PM 5/13/2001 -0400, Nathan Russell wrote: >>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

Mersenne: miscellaneous

2001-05-14 Thread George Woltman
Hi all, The 6 available small exponents are long since gone. One had a P-1 factor found this morning. I've had one other LL result reported, so we're at 20 below M#38 and counting Embarrassingly, the P4 version I announced 2 days ago fails the self-test. You would have tho

Re: Mersenne: missing exponents?

2001-05-14 Thread Jeff Woods
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

Re: Mersenne: Pentium 4 owners - pre-beta prime95 release available

2001-05-14 Thread George Woltman
At 01:02 AM 5/14/2001 -0700, xqrpa wrote: >Is ordinary factoring code also present ("Factor Only") and is >there a corresponding speed-up? The factoring code is present but unchanged. Thus, no speedup. Regards, George _ Un

Re: Mersenne: Re: 26 exponents

2001-05-14 Thread Nathan Russell
On Mon, 14 May 2001 00:20:47 +0100, Daran wrote: >As someone currently running a legacy machine, (It's taking 4-5 months to run >double-checks in the range under consideration,) I have some thoughts on this. > >First of all, as Jud notes, the 'elitism' is already there, in that different >machine

Mersenne: Re: 22 below M#38 and counting

2001-05-14 Thread Steinar H. Gunderson
On Sun, May 13, 2001 at 09:24:00PM -0400, George Woltman wrote: >So. the first 6 folks that email me privately can have one exponent each. Yes please -- if there are any left by now :-) /* Steinar */ -- Homepage: http://members.xoom.com/sneeze/ _

Re: Mersenne: Pentium 4 owners - pre-beta prime95 release available

2001-05-14 Thread xqrpa
Is ordinary factoring code also present ("Factor Only") and is there a corresponding speed-up? What a prospect: doing a 33M exponent L-L in about 60 days! Thanks And Best Wishes, Stefanovic xqrpasuper - Original Message - From: George Woltman <[EMAIL PROTECTED]> To: <[EMAIL PROTECTE