## Other

drummers-lowrise
 1) Message boards : Cullen/Woodall prime search : Cullen Woodall Sieve Resumed (Message 162201) Posted 32 days ago by mfl0p As P increases, the program can iterate from N = 25M to 50M in larger steps. Also, the density of primes decreases with higher P range, resulting in a reduction of time to complete a constant range of P. 2) Message boards : Problems and Help : Low GPU clock 4080 (Message 161003) Posted 89 days ago by mfl0p I've had the same problem on windows 11 with 5xx.xx+ drivers. The gpu goes into a low power state. I don't have that problem on windows 10. 3) Message boards : Aggie The Pew message board (Message 159927) Posted 125 days ago by mfl0p i found 2 GFN16 before the start 4) Message boards : Aggie The Pew message board (Message 158369) Posted 181 days ago by mfl0p I changed the title from Prime Meridian Day Challenge to Great Internet Fermat Prime Search Challenge, which you probably meant. I'll be doing GFN21 with 2 gpus. 5) Message boards : Wieferich and Wall-Sun-Sun Prime Search : End of WW Project - 30 day notice (Message 157985) Posted 196 days ago by mfl0p Are there any plans to update the software for a higher range? quoting Yves Gallot The main problem if WW is extended is probabilities. The expected number of Wieferich or WSS primes in [a; b] is log(log(b)) - log(log(a)). Then in [2^64; 2^65] this is 2 x 0.0155 WW prime. The expected number of solutions for |A| < 10 is 20 x 2 x 0.0155 = 0.62, 5.6 for |A| < 100 and 56 for |A| < 1000. If WW for p < 2^64 takes about 2 years, [2^64; 2^65] will take about 5 years. The probability of finding a WW prime is too small to extend the search at this time. 6) Message boards : Problems and Help : Genefer18 4.0.0 Fiji validation failed (Message 157969) Posted 197 days ago by mfl0p I see you have an invalid WW task and a computation error on a sieve task. This indicates possible hardware failure. 7) Message boards : Aggie The Pew message board (Message 157615) Posted 217 days ago by mfl0p will be a rolling start for me at 1:00 AM 8) Message boards : Problems and Help : amd Zen4 avx512 problem (Message 157235) Posted 249 days ago by mfl0p currently looking into this problem. 9) Message boards : Problems and Help : warning!!! (Message 156995) Posted 263 days ago by mfl0p See this thead https://www.primegrid.com/forum_thread.php?id=9357&nowrap=true#144173 10) Message boards : Aggie The Pew message board (Message 156965) Posted 266 days ago by mfl0p Upcoming challenge on the WW sub-project. Bring all your GPUs, they have a major advantage over CPUs. I've been getting ready for this challenge by bringing a bunch of old GPUs online.

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