Holy new Mersenne prime, Batman! (M47 related)

[jinydu]

Three verifications? But only one (by Duell and Giltrap) has been completed for each so far. (Or am I forgetting something?)

[TimSorbet]

Originally Posted by jinydu

Three verifications? But only one (by Duell and Giltrap) has been completed for each so far. (Or am I forgetting something?)

I think Ernst was/is running verification(s) as well.

[davieddy]

Originally Posted by jinydu

Three verifications? But only one (by Duell and Giltrap) has been completed for each so far. (Or am I forgetting something?)

Jeff Gilchrist.

[Patrick123]

I've been following this thread (& the others) with interest, lost a lot of sleep as well... out of curiosity, to keep up to date with the news

Congratulations to all those involved!!!


Regards
Patrick

[ewmayer]

Originally Posted by Mini-Geek

I think Ernst was/is running verification(s) as well.

No, I was part of the Giltrap/Duell Sparc-based effort - they ran my Mlucas code on a Sun server, there's been a huge amount of build-tweaking and compiler-issue-workaround-ing going on between us behind the scenes.

[jinydu]

On the bright side, this does give more time for sleuthing...

Here's an idea: Were any of the residues, as reported by cleared.txt, in the list:

37425887 68 0x9B10891A72B405__ 23-Aug-08 7:02 BranMuffin ROTV-O4
37946213 69 0x901FF5AA04168E__ 23-Aug-08 7:19 S611352 p4raid
43096799 69 0x32E28ECEC2C31B__ 23-Aug-08 7:21 TeamRessler 1062315
38859463 69 0x5840B65CA7CB7B__ 23-Aug-08 7:23 curtisc JCKL-cce41L
43411699 69 0x7C0112FE295ECD__ 23-Aug-08 7:25 salfter office1
36705287 70 0xDDA8BEB967041D__ 23-Aug-08 7:32 dmazh dm2
42206137 69 0x0A0EEC17151DAC__ 23-Aug-08 7:33 drrocket MIS5PC
43112609 69 0x8691696D2BDA50__ 23-Aug-08 7:33 UclaMath C20E3341C
37763179 70 0xB141C151483C99__ 23-Aug-08 7:34 curtisc wcm128--03L
40896127 69 0x4F9CCA10FDF131__ 23-Aug-08 7:35 fcg619 C1391
28829407 69 0x849E58408C92DE__ 23-Aug-08 7:41 hagenbuchner XENserv1
42801739 69 0xF6DDB517B9A4C6__ 23-Aug-08 7:44 DingoDog starfury
42760397 70 0xA6090C299C0678__ 23-Aug-08 7:46 curtisc JCKL-ccd62L
32428427 69 0xB6C80137FEDB7E__ 23-Aug-08 7:49 suuuncon SPDELL
41935241 69 0xEDB167FA1DBB31__ 23-Aug-08 7:53 S00039 Cinebox_0
41959849 69 0xD689BE98B86C77__ 23-Aug-08 7:53 curtisc grn206--11l
42781927 69 0x8613884B69237A__ 23-Aug-08 7:56 jmoseley Vader
42796219 69 0x4F4C53A0908A5D__ 23-Aug-08 7:59 DingoDog starfury

changed at any time? If so, our experience with MSept would indicate that we should guess against it.

[T.Rex]

23th of August: nearly 86% done.
6th of september: nearly 55% done.
Wait for Saturday and Sunday...

About Jeff's verification, seems he's going faster than at the beginning !
Yes, 3 verifications is better than 2.

I've posted several interesting measures of scalability on several threads, and I think I will have interesting data about performance and scalability of Mlucas, Glucas and Prime95 on the same 8x Xéon machine, plus maybe a Néhalem. It would be nice and useful to write a real paper... but not sure I'll have time.
Tony

[sylvester]

Originally Posted by CRGreathouse

... calculate a 4.05% average since the end of WW2... Following that historical average ...

Although I see a wink icon on top of your message, I still deeply regret my attempt at posting a joke on this forum. At the same time it is heartening to see that there are people willing to take the opposite side of my trade.

Thank you for posting the link to the LDC/PIR paper.

[CRGreathouse]

Originally Posted by sylvester

Although I see a wink icon on top of your message, I still deeply regret my attempt at posting a joke on this forum. At the same time it is heartening to see that there are people willing to take the opposite side of my trade.

I wasn't trying to make you feel bad; my apologies if it did. I thought it would be interesting to see how much inflation it would take to get there (I would have thought more -- the 15th root does cut numbers down to size!) as well as find out what inflation has been (this matched my expectations more closely). I could tell you were joking, just like the people on the hardware thread referencing the "Four Yorkshiremen" skit.

(I don't know what you mean by "opposite side of my trade".)

But I did hope that my absurd post on inflation, followed by the post on the cool use for Mersenne primes, would get people talking about something other than Dr. Silverman's pedagogical style. Maybe a larger distraction is in order...

[Wacky]

Originally Posted by CRGreathouse

Maybe a larger distraction is in order...

I like Ike.

(Sorry, that probably belongs in the "Well *we* had it *tough*" thread.)

Houston, we have a problem…

[sylvester]

Originally Posted by CRGreathouse

I don't know what you mean by "opposite side of my trade".

I'm referring to the trading on the futures markets, including currency futures. The long/short trades there have to balance exactly.

This is a standard capitalistic argument against education. If everybody was smart and there were no stupid people then there wouldn't be anyone to take the "stupid" side of the trade from the "smart" people.

Using BLS numbers for inflation is one of the standard obfuscation strategies in the financial salesmanship. Picking "since WW2" time period is an example of "survivorship bias." For a more relevant financial reference please try looking up "continental dollar."

I'm glad to hear that you didn't get offended by my comment. I continue to regret my original post that attempted to make a joke. I just contributed to increasing the noise level on this board.