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drummerslowrise

1)
Message boards :
Number crunching :
How Many Mega Primes in 2023
(Message 159438)
Posted 136 days ago by KEP
I takes a rough guess of 753 MegePrimes during 2023 for PG :)

2)
Message boards :
Number crunching :
Ideas for 2023 Challenge Lineup?
(Message 158281)
Posted 183 days ago by KEP
I suggest, a 14 day challenge in ESP, running from the official starting date (if such is recorded) or from the day and month the first prime found by Lennart Vogel is reported in this thread:
https://www.primegrid.com/forum_thread.php?id=5758
This one can be combined with a PSP run to, if/when ESP catches up to PSP. There is currently 5,281,596 n in difference between the leading edge of ESP and PSP  so maybe the challenge should be ALL ESP.
So I suggest, from 18:00 UTC March 13 to 18:00 UTC March 27 that we run an ESP Challenge
Running a 14 days challenge, will offer the slow users a chance to participate and those with big power, will be able to push the leading edge beyond the heavens :)
I think that a TRP challenge, does not make sense, since Ryan Propper (hopefully i coordination with PG) seems to have taken the primes available for a forseable future.
Take care
KEP

3)
Message boards :
Number crunching :
Validate errors
(Message 156569)
Posted 312 days ago by KEP
...I'm barely available because of family health issues...
I'm sorry to hear that, best wishes from here. Thanks for your effort despite your real life ordeals.

4)
Message boards :
Number crunching :
Pi Approximation Day Challenge
(Message 156430)
Posted 316 days ago by KEP
I think he means we'll be finishing nonMEGA PPS soon and jumping towards MEGA territory
Correct :)

5)
Message boards :
Number crunching :
Pi Approximation Day Challenge
(Message 156412)
Posted 317 days ago by KEP
I'll take a calculated guess:
Of the tasks waiting, I expect about 104 primes
Of the tasks in progress, I expect about 3 primes
Of the current total of tasks, if they complete during the challenge, I guess we will find:
107 primes, of wich quite a few will be MegaPrimes :)

6)
Message boards :
Number crunching :
Tour de Primes 2022
(Message 153551)
Posted 495 days ago by KEP
How about SR3?
(For those not familiar with SR3, that's a joke. SR3 has an absolutely ridiculous number of k's to be proven. There's over three quarters of a million k's remaining.)
Yes, it is a lot of numbers of k's to be proven, HOWEVER, R3 in itself is "much easier" than R2 to prove. Everytime you double n, about 46% of all k's are removed due to having a prime, so when it comes to prove R3, as insane it may seem, it is still not far fetch.
At n=1M we will have about 15,820 k's remaining (removed about 84,915 k's)
At n=10M we will have about 2,205 k's remaining (removed about 13,615 k's)
At n=100M we will have about 307 k's remaining (removed about 1,898 k's)
At n=1G we will have about 43 k's remaining (removed about 264 k's)
At n=10G we will have about 6 k's remaining (removed about 37 k's)
At n=100G we will have about <0.9 k's remaining (removed about 5 k's)
At n=1T we will have about <0.1 k's remaining (removed about 1 k's)
So with a bit fortune, R3 will prove around n=100G and most likely before n=1T.
Due to the amount of k's that need handling before n=1M, it would make up for a good PSA project. For ages, once level is good enough for BOINC, the project would be interesting for those who want to run small and fast workunits :)
It is definently worth a consideration for Primegrid in near or shortterm future :)
Take care everyone.

7)
Message boards :
Number crunching :
New goals for 2022 and 2021 sum up
(Message 153080)
Posted 515 days ago by KEP
Hebdoprime is close 👍 any day now 😉
Cool, I then stand corrected  I even suspect the project that is overall suspect :)

8)
Message boards :
Number crunching :
New goals for 2022 and 2021 sum up
(Message 153056)
Posted 516 days ago by KEP
I like the idea of a challenge to wipe Proth Prime Search. Such a challenge could be 5 days (if enough work remain for such a period)
Alternatively, a special badge could be designed, to honor the one that crunch the absolute last non certificate Proth Prime Search workunit below 1 million digits  that could in itself indirectly lead to a sort of challenge, and bring Primegrid down by 1 project and indirectly help push Proth Prime Search Extended and the Mega version more than they are today.
I think the Hebdoprime, (10M digit prime) is far to soon, maybe in 2 years time, when ESP and PSP catch up to the >10M digit level  at that time, we even have to wait a couple years before we see the Hebdoprime, but heck lets for fun and game keep the goal, who knows we might get lucky :)

9)
Message boards :
Number crunching :
Once in a Blue Moon Challenge
(Message 151097)
Posted 661 days ago by KEP
Here is some fun numbers, each one can use their own way:
1. We have below n=50M about 355,472 k/n pairs remaining.
2. Everytime we complete 1000 k/n pairs, we increase maximum n with about 71,023
3. Everytime we complete 14,080 k/n pairs, we increase maximum n with about 1,000,000
4. If we complete 3554 k/n pairs each day, we will clear 10% of work remaining by the end of the challenge
5. If we complete 8,885 k/n pairs each day, we will clear 25% of work remaining by the end of the challenge
6. If we find a prime during this challenge, we will save from 22,420 to 104,827 k/n pairs to test, dependant of the weight of the k
Have fun everyone :)

10)
Message boards :
Number crunching :
Once in a Blue Moon Challenge
(Message 151076)
Posted 663 days ago by KEP
You can use pfgw to find the FFT size of any subproject:
Will PFGW always select the same FFT size as LLR/LLR2? /JeppeSN
If the GWnum version of LLR/LLR2 and PFGW is the same, the answer is YES!
However, from time to time, George updates the GWnum library and in the case where you close in on a FFT crossover, then the FFT length can start to vary.
In other words, even if the GWnum version is not the same, then in most of cases, the FFT selected will be the same.

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