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Message boards : Generalized Fermat Prime Search : Guessing the future of GFN-22 and DYFL

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JeppeSN

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Message 147091 - Posted: 27 Dec 2020 | 9:55:12 UTC

Here is a tough bet: Which will happen first:

1. GFN-22 reaches the starting point (b = 846'396.7) of DYFL, likely without finding any GFN-22 primes, and the two 22-subprojects merge
2. Someone outside PrimeGrid, likely GIMPS, finds a new world record prime, and DYFL jumps to that new position (resulting in two "holes")

And when?

/JeppeSN

dannyridel
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Message 147093 - Posted: 27 Dec 2020 | 10:52:31 UTC - in response to Message 147091.

no.2, July 2021
____________
SHSID Electronics Group
SHSIDElectronicsGroup@outlook.com

GFN-14: 50103906^16384+1
Proth "SoB": 44243*2^440969+1

Michael Goetz
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Message 147095 - Posted: 27 Dec 2020 | 13:49:48 UTC - in response to Message 147091.

Here is a tough bet: Which will happen first:

1. GFN-22 reaches the starting point (b = 846'396.7) of DYFL, likely without finding any GFN-22 primes, and the two 22-subprojects merge
2. Someone outside PrimeGrid, likely GIMPS, finds a new world record prime, and DYFL jumps to that new position (resulting in two "holes")

And when?

/JeppeSN

Almost certainly #2 is going to happen first. GFN22's leading edge took nearly 9 years to get to where it is now at 187K, and it's over three times as far to go to get to the start of DYFL. Additionally, it will exceed both the OCL and OCL4 limits before then, so the tasks will slow down.

GIMPS has been finding new world records every few years, so unless they hit a huge dry patch in Mersenne primes, they'll probably find a new prime decades before GFN22 ends.
____________
My lucky number is 75898524288+1

Homefarm

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Message 147096 - Posted: 27 Dec 2020 | 14:09:27 UTC

Given that a 3090 can run GFN22 in about 14 hrs, but DYFL will run in about 15.5 hrs, which sub project would you choose and which is more "likely" to have a chance of a prime, however remote?
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Rafael
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Message 147166 - Posted: 30 Dec 2020 | 16:35:30 UTC - in response to Message 147096.

Given that a 3090 can run GFN22 in about 14 hrs, but DYFL will run in about 15.5 hrs, which sub project would you choose and which is more "likely" to have a chance of a prime, however remote?

The lower the number, the higher the likelyhood of it being prime, so if you're only looking for A gfn22 prime, don't run DYFL.

With that said, you might as well look for a WR and have a shot at the cash reward / fame, or tone it down and look for the first GFN21 known to man instead.

GDB

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Message 147171 - Posted: 30 Dec 2020 | 18:03:16 UTC

I still think GFN22 is undersieved. I was removing a GFN22 factor every 72 seconds. That's about 1200 times faster than running GFN22.
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JeppeSN

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Message 147172 - Posted: 30 Dec 2020 | 18:25:57 UTC - in response to Message 147166.

the cash reward

I do not think you will earn a cash reward for beating the world record, here at PrimeGrid.

GIMPS got a cash prize when they found the first croreprime (10'000'000-digit prime), and might also find the first 100'000'000-digit prime in the distant future. I think GIMPS uses some of this money to give a cash reward to finders. PrimeGrid does not have that.

/JeppeSN

Message boards : Generalized Fermat Prime Search : Guessing the future of GFN-22 and DYFL