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1) Message boards : Proth Prime Search : PPSE (Proth Prime Search Extended) too small for Top 5000 now (Message 156325)
Posted 76 days ago by Allen Paschke
Considering:
- PPSE is no longer in the Top T5k
- GFN-16 is still in the Top T5K, but could fall out of the Top T5K in about a year
- PPS will close when it reaches 1M digits

Are there any new sub-projects which could be added to find primes in the 600K - 900K digit range?
2) Message boards : General discussion : Sub-Project Bonuses (Message 155252)
Posted 153 days ago by Allen Paschke
I think GCW's long job credit bonus should be increased from 10% to 20%, since WOO and CUL
both run with less CPU time, and both WOO and CUL have a 20% long job credit bonus.
156:11 --- WOO --- 20% long job credit bonus.
158:40 --- CUL --- 20% long job credit bonus.
172:18 --- GCW --- 10% long job credit bonus.
3) Message boards : General discussion : Sub-Project Bonuses (Message 155233)
Posted 154 days ago by Allen Paschke
Do the credit bonuses by sub-project make sense? Most do, BUT some don't.

The following shows the average CPU time by task (as of 17 April 2022), the sub-project and the sub-project bonus:
15:07 --- GFN-18 --- No credit bonus
15:42 --- SR5 --- 10% long job credit bonus.
16:59 --- PPS-Sieve --- No credit bonus
25:58 --- AP27 --- No credit bonus
34:40 --- TRP --- 10% long job credit bonus and a 10% conjecture credit bonus.
51:22 --- GFN-19 --- No credit bonus
58:20 --- 321 --- 10% long job credit bonus.
104:58 --- WW --- No credit bonus
156:11 --- WOO --- 20% long job credit bonus.
158:40 --- CUL --- 20% long job credit bonus.
160:12 --- ESP --- 10% long job credit bonus and a 10% conjecture credit bonus.
172:18 --- GCW --- 10% long job credit bonus.
188:00 --- GFN-20 --- 10% long job credit bonus.
232:24 --- PSP --- 35% long job credit bonus and a 10% conjecture credit bonus.
386:21 --- SOB --- 50% long job credit bonus and a 10% conjecture credit bonus.
550:58 --- GFN-21 --- 20% long job credit bonus.
4) Message boards : Project Staging Area : PRP 27 Error Messages (Message 151284)
Posted 399 days ago by Allen Paschke
FYI --- Round off errors are occurring on a majority of my Proth Prime (xxxxxxx+1) tasks, but NEVER on a Lucas Lehmer Riesel (xxxxxxx-1) task
5) Message boards : Project Staging Area : PRP 27 Error Messages (Message 151283)
Posted 399 days ago by Allen Paschke
I'm running "C:\PRP 27 - 4\prpclient-1\prpclient.exe", so I would change it to
"C:\PRP 27 - 4\prpclient-1\prpclient.exe -oDiskWriteTime=1"?

Is there a way to define the checkpoint frequency in the INI file?

Since this is happening more and more frequently with tasks on multiple PCs, another option may be to increase the roundoff error criteria from 0.4.
6) Message boards : Project Staging Area : PRP 27 Error Messages (Message 151257)
Posted 401 days ago by Allen Paschke
I've started receiving MULTIPLE error messages on some of my 27 Prime Search runs:

Iter: 2951050/8927468, ERROR: ROUND OFF (0.40625) > 0.4
Continuing from last save file.
Resuming Proth prime test of 27*2^8927464+1 at bit 2949505 [33.03%]
Using all-complex AVX FFT length 512K, Pass1=128, Pass2=4K, a = 5
Disregard last error. Result is reproducible and thus not a hardware problem.
For added safety, redoing iteration using a slower, more reliable method.
Continuing from last save file.

The tasks are running, but using alot of extra time to complete.
7) Message boards : Project Staging Area : PRPNet Credit may be Irregular Until Further Notice (Message 150749)
Posted 452 days ago by Allen Paschke
No problem. Thank you for your contribution to PrimeGrid.
8) Message boards : Project Staging Area : The 121 project is almost finished (Message 149422)
Posted 563 days ago by Allen Paschke
What is your estimate on how much longer the 27, Factorial and Primorial Prime Searches will continue to remain active?

Will any of these Prime Searches run on an Intel Graphics 620 GPU?
9) Message boards : Number crunching : Sier"pi"nski's Birthday Challenge (Message 149295)
Posted 568 days ago by Allen Paschke
I agree with freestman. Each of my 3 computers, each running a SOB task with all 4 threads, will complete one SOB task during the challenge. It will take each computer 6 - 7 days to complete a task.

If the goal of the challenge is to concentrate on SOB, how about more than 10 days?
10) Message boards : Wieferich and Wall-Sun-Sun Prime Search : Any idea on WU times CPU vs. GPU? (Message 146216)
Posted 661 days ago by Allen Paschke
Runtimes and credit are intended to be similar to AP27.
Credit will be 4000 credits per task, unless we change the task size.

Now that WW tasks have been completed, are you considering modifying the credit?
- AP27 --- 27.5 hours average CPU time --- 4,043 credit
- WW --- 77.4 hours average CPU time --- 4,000 credit
- ESP --- 78.3 hours average CPU time --- 11,575 credit


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