Holy new Mersenne prime, Batman! (M47 related)

[ixfd64]

32 Itanium cores?

*drools*

[jinydu]

Care to give an estimate on how long your verification run will take?

[coyote]

Originally Posted by jinydu

Care to give an estimate on how long your verification run will take?

Translating into plain English:

Care to give us a hint on how long the candidate is?

[cheesehead]

Originally Posted by jinydu

Care to give an estimate on how long your verification run will take?

Tony,

Before you answer that, be sure to multiply by the cabal's inflation factor (see my post #189 http://mersenneforum.org/showpost.ph...&postcount=189).

[Kevin]

Anybody else planning on changing what ranges they test if this ends up winning the prize, or am I just over-thinking things? It might be silly, but for whatever reason, in my mind it's worth dealing with the larger tests because of the lure of a world record and possible cash prize, but not just for the world record. As the 10M digit tests I currently have reserved finish up, I think I might focus on finding exponents that give the most credit per CPU hour and picking up first time tests as they expire to help clear out all the sub-10M digit first time tests.

[rgiltrap]

Originally Posted by Jeff Gilchrist

Just to give everyone an update, my verification is almost 30% complete...

We're about 40% done now...

[Jeff Gilchrist]

Originally Posted by rgiltrap

We're about 40% done now...

Wow, I'm not as far behind you as I thought, I'm at 38.5%...

Jeff

[davieddy]

Reminds me of old jokes about the "unitary" method:
If one man can verify a prime in three weeks, how long would it take four men?

[T.Rex]

Originally Posted by jinydu

Care to give an estimate on how long your verification run will take?

I think I'll be late... This damned Intel compiler produces bad code with 3 files of Glucas when I use -O3 (and also with -O2 and -O1 !!!!), the machine has an architecture different (slower...) than the one I used for the previous verifications I've done, and some tools I used in the past are not giving the 30% improvement I was used to get... So, I have a sec/iter rate about THREE times bigger than for M44. Bad. And I started late.
So I'll be done around the 17th. Very late.
I think Ernst will be the first to check this new prime. He deserves that !!
How many days still to wait before you have checked it, Ernst ?
Tony

[T.Rex]

Originally Posted by T.Rex

I think I'll be late...

I've found one of my mistakes. The verifcation should be done around the 13th.
Tony

[ixfd64]

Originally Posted by Fusion_power

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

Does anyone notice something odd about M32428427? No?

When M44 was reported, another exponent, M29225803, was also given a fake residue.

Let's take a closer look:

Residue of M32428427 when M45 was reported: 0xB6C80137FEDB7E__
Residue of M29225803 when M44 was reported: 0xB6C80136DB7FED__

See anything now?