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Old 2016-01-09, 19:06   #1
Prime95
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Default Oops - New Prime! (M49 related)

A new prime has been reported to the server. We need a CUDALucas volunteer to verify -- contact madpoo.

Aaron, James and I have egg on our face. The prime was reported last year but went unnoticed (again) for months. I have a plan to make sure this does not happen again (failure of the automated announcement email)

I'll be back from a brief trip in 36 hours with more details.

Anyway, great news!! Congrats to GIMPS! (pending official verifications)
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Old 2016-01-09, 19:14   #2
paulunderwood
 
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Is it bigger than $2^{57885161}-1$?
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Old 2016-01-09, 19:16   #3
ATH
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That is great news, even though the method of discovery is not optimal Let's cross our fingers that verification holds.

I can start verification on my 5960X (ETA 44-48 hours if the expoment is in the 61-64M range), and I can check on my Titan Black with CudaLucas.

Last fiddled with by ATH on 2016-01-09 at 19:17
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Old 2016-01-09, 19:19   #4
lycorn
 
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Quote:
Originally Posted by Prime95 View Post
The prime was reported last year but went unnoticed (again) for months.
Yeah, seems like I´ve been too much distracted...

Anyway, great news, as you said. We´re en route to another great moment of excitment.
GIMPS is alive and kicking!
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Old 2016-01-09, 19:30   #5
davar55
 
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Wow! Take all the Time you need!

M49* found for real? Happy New Year again!

Fingers crossed.....
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Old 2016-01-09, 19:34   #6
Dubslow
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Is there any error code? What are your thoughts as to the odds this is a legitimate find?

(...Would anyone be willing to PM me the exponent in question? lol. I can offer only an i7-2600K, with either Prime95 or Mlucas.)
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Old 2016-01-09, 19:57   #7
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I can feel the rush in my vain...
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Old 2016-01-09, 20:09   #8
Madpoo
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Here's what can be said:
  • no error codes in the run
  • the exponent is between 2 and 595e6 (couldn't resist, sorry, but not sorry)

I would love to get someone with CudaLucas and the fastest dang GPU out there so we can do the code/platform independent run ASAP

What's the fastest GPU for LL testing? Anyone with a Tesla K80 or a Titan X / Z ?

The current best offer on the table is a Titan Black from ATH.
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Old 2016-01-09, 20:14   #9
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Have both X and Zs handy, I can run it on both if you like
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Old 2016-01-09, 20:15   #10
ATH
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My 8 cores CPU is a bit faster than my Titan Black, but that way I can get a preliminary verification on the CPU and then another one a few hours later on the GPU.

Titan X has lousy double precision performance?

Last fiddled with by ATH on 2016-01-09 at 20:16
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Old 2016-01-09, 20:15   #11
Madpoo
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Quote:
Originally Posted by airsquirrels View Post
Have both X and Zs handy, I can run it on both if you like
I think we have a winner here. I was hoping AirSquirrels was awake and looking at the forum on a weekend since I knew he had some GPUs available.

Send me a private message with your email address and I'll send the details.
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