mersenneforum.org Request for delay in assigning PRP on Cofactors once a factor is found
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 2021-07-08, 20:09 #1 azhad   Oct 2004 22·5 Posts Request for delay in assigning PRP on Cofactors once a factor is found I would like to find a large PRP. Part of my CPU effort is to factor Mersenne Numbers. I check the results once every 24 hours - however, I always find that numbers I have found factors are already assigned to other members for PRP. What if the PRP is huge? I don't get any credit? Hence I request that some delay (atleast 24 hours) be allowed between assigning for PRP on Mersenne Cofactors to another user. (The one who factored it should get some time to setup a PRP on the cofactor).
 2021-07-08, 20:57 #2 Viliam Furik     "Viliam Furík" Jul 2018 Martin, Slovakia 70610 Posts I second this. I am also focused on factoring the known composites for PRP cofactors. When I check my results for new factors, they are usually already assigned. I think 24 hours space for the user who found the factor might be good. It may be applied to all factors, as there will be no significant delay in any way for PRP-CF range exponents, i.e. <20M.
 2021-07-08, 22:31 #3 Uncwilly 6809 > 6502     """"""""""""""""""" Aug 2003 101×103 Posts 2×5,059 Posts If you want to find the big PRP, I have a different solution for you. Set Prime95 to not automatically contact Primenet. Check once a day for factors found. Queue them up to test for PRP-CF. Once done report both results. You can use the manual page. Also realise that it appears that some people have their machines watch for factor reports and automatically queue the up. And if you can do that right, you can get Primenet to give you and AID.
 2021-07-08, 22:36 #4 Prime95 P90 years forever!     Aug 2002 Yeehaw, FL 3·13·197 Posts If the new PHP code works..... For 5 days after finding a factor the discoverer will be the only user allowed to get the PRP-CF assignment.
2021-07-08, 23:07   #5
Viliam Furik

"Viliam Furík"
Jul 2018
Martin, Slovakia

2·353 Posts

Quote:
 Originally Posted by Prime95 If the new PHP code works..... For 5 days after finding a factor the discoverer will be the only user allowed to get the PRP-CF assignment.
Great!

 2021-07-09, 08:15 #6 azhad   Oct 2004 22·5 Posts That's great. Thanks.
 2021-07-12, 14:22 #7 kruoli     "Oliver" Sep 2017 Porta Westfalica, DE 28·3 Posts Another possibility would be to have an option in mprime/Prime95 to automatically request a PRP-CF after you found a factor (up to a limit, this would not be helpful for 100M+ factor results) and execute it directly as highest priority. Otherwise you would have to monitor your results manually, request the PRP-CF manually and enqueue them manually. Another option would be having a dedicated PRP-CF worker thread. This would also prevent some kind of "botting": It seems to me that some users are looking for new factors of small numbers (automated, I guess) and then execute a PRP-CF without assignment. I had this happen even after you changed the assignment code in one case.
 2021-07-15, 17:50 #8 alpertron     Aug 2002 Buenos Aires, Argentina 19×73 Posts It appears that there are some users actively performing PRP: Code: SRJ2877 LTOS 687109 C-PRP 2021-07-15 08:05 Oliver Kruse Krusen-NAS 687109 F-ECM 2021-07-15 01:42 SRJ2877 LTOS 1808459 C-PRP 2021-07-14 15:20 Dylan Delgado laptop-ryzen73700 1808459 F-PM1 2021-07-14 08:30 GURA LOVE 2262313 C-PRP 2021-07-15 11:24 TJAOI Manual testing 2262313 F 2021-07-15 09:27 SRJ2877 LTOS 2665469 C-PRP 2021-07-14 18:37 GAN KL-SCH02 2665469 F-ECM 2021-07-14 16:58
 2021-07-19, 07:47 #9 kruoli     "Oliver" Sep 2017 Porta Westfalica, DE 28·3 Posts Yes, those are them. They beat me with six new factors found in the 200k exponent range… Luckily for me, non of them turned up as having a PRP cofactor. Also, there is user 123456789123456789. I did not want to call them out, but since we are starting a list nonetheless… Last fiddled with by kruoli on 2021-07-19 at 07:47 Reason: Grammar.
 2021-08-29, 18:28 #10 kruoli     "Oliver" Sep 2017 Porta Westfalica, DE 11000000002 Posts Currently, every factor I find is followed nearly immediately by at least two PRP-CF by other users while I have an assignment for it. What do you suggest?Should I report the factor results manually and execute the PRP-CF also manually and by hand? Is there interest in having an automatic PRP-CF when a factor is found up to a given limit? Blocking users submitting such results seems disproportionate when it is "allowed" in the FTC and DC range.
2021-08-29, 18:30   #11
Viliam Furik

"Viliam Furík"
Jul 2018
Martin, Slovakia

2×353 Posts

Quote:
 Originally Posted by kruoli Currently, every factor I find is followed nearly immediately by at least two PRP-CF by other users while I have an assignment for it.
Same, except I don't even bother assigning them anymore.

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