Wow, that's dedication!
The only dedication necessary is pressing Enter – and wait - and make sure you have enough spare machines to do other important things in the meantime.
I am still using basically the same setup as with the previous records – a stripped version of dga’s B14 Riecoin miner. I estimate this system to be between 4 and 8 % faster than the B14 since I am only looking for 6-tuplets and abandon further primality tests as soon as I meet the first non-prime.
I was never able to tame the B15s and the B16s into the Microsoft Visual Studio harness, discouraged by several hundred compile time challenges. (The B14 only gave me about a dozen)
My present tuplet searcher is probably just on par and maybe even a bit slower than the B16 miners (which I believe are the current best ones?)
I just had a quick look at the block times for the Hall of Fame:
superblock datetime prev block datetime block time diff digits
289872 03.07.2015 23:24 03.07.2015 21:32 01:51:32 2256.00 679
281808 19.06.2015 17:09 19.06.2015 16:26 00:42:27 2232.00 672
293904 10.07.2015 23:16 10.07.2015 23:02 00:13:42 2211.00 666
285840 26.06.2015 21:17 26.06.2015 21:16 00:00:50 2196.00 661
306000 01.08.2015 16:02 01.08.2015 15:30 00:31:11 2195.00 661
297936 18.07.2015 10:45 18.07.2015 10:17 00:27:56 2183.00 657
310032 08.08.2015 19:25 08.08.2015 18:10 01:14:27 2176.00 655
164880 24.11.2014 20:28 24.11.2014 16:13 04:14:39 2173.00 654
301968 25.07.2015 13:33 25.07.2015 13:12 00:20:45 2169.00 653
201168 27.01.2015 04:07 27.01.2015 02:40 01:26:12 2154.00 649
They average just above one hour (notice the 26 June entry, less than one minute!)
Using gatra’s formula from almost a year back: to estimate time for a block of a certain difficulty based on numbers from another diff:
T1/T2 = (Diff1/Diff2)^9
Based on the superblock entries above: Working at diff 2500 rather than 2200: ~3 times longer time or just over 3 hours on average.
Based on the present regular blocks: Working at diff 2500 rather than 1500: ~100 times longer time, just over 100*2,5 minutes or around 4 hours.
Looking at the spread in the Hall of Fame, you would expect some of the possible 2500 superblocks to be solved in half an hour, but you could also expect some well over 10 hours.
It could be done, or…? Also, back in June 2014 with a difficulty of 1700+ and well over 20k workers at ypool, an 800 digit (diff 2656) world record would be well within reach.
I don’t really know why I am encouraging this strange mining brotherhood *) to break my records – it is probably because I was a member myself from the very beginning – and occasionally still am.
Regards,
Vidar
*) and sisterhood – apologies to Cinnamon!
