20180804, 19:58  #23  
"Mark"
Apr 2003
Between here and the
5·1,249 Posts 
Quote:
Adding k only increases the memory needed for sieving, but won't slow down the sieve once you get p > max k. 

20180813, 12:55  #24 
"Mark"
Apr 2003
Between here and the
5·1,249 Posts 
Both of these range are done. Nothing new to report beyond the Fermat divisor that I already reported.
n: 51005199 k:1200e62500e6 n: 51005299 k:1200e62500e6 
20180819, 21:54  #25 
"Mark"
Apr 2003
Between here and the
5·1,249 Posts 
I have to redo
n: 50005399 k:1200e62500e6 because of the bug gfndsieve had with ABCD files which I fixed with the 1.7.2 release of mtsieve in July. Although that bug only impacts starting gfndsieve from an previous save point, I suspect that the other large ranges I have sieved with it need to be rerun. n 54005599 are fine. There is another large gap I did a few months ago that I will rerun. I doubt any of the smaller ranges I have done are impacted, but they should be "thrown back into the pool" to be redone. Unfortunately for me this is about 6 months of rework. If anyone used a build of gfndsieve that is prior than the 1.7.2 release of mtseive and you stopped and restarted sieving from a saved file, you will need to redo that range. If you did not stop and restart then you are fine. Last fiddled with by rogue on 20180819 at 22:03 
20181213, 16:52  #26 
"Mark"
Apr 2003
Between here and the
1865_{16} Posts 
I finished the recheck of n 50005399 and completed n 54005599 for k 1200e62500e6. Here are my finds:
2222488721*2^5349+1 is a Factor of xGF(5347,7,3)!!!! 2055442709*2^5431+1 is a Factor of GF(5429,11)!!!! 1994861771*2^5517+1 is a Factor of xGF(5512,7,2)!!!! 1321981497*2^5592+1 is a Factor of xGF(5590,7,5)!!!! Nothing was missed in 50005299. I have rested all other ranges that I had completed previously with the the exception of n: 1000310999 k: 100e6 269e6. I expect that to complete in February. Based upon sieving, I know that range was impacted by the bug in gfndsieve. 
20191122, 10:14  #27  
Banned
"Luigi"
Aug 2002
Team Italia
2·7^{4} Posts 
Some new "Most wanted" ranges
Quote:
Now I need some volunteering effort to close the gaps of the range 200209 and take each N to the same level... The request is addressed to everyone,and duplicated in the "Results" thread I know Oleg Naryshkin has been working on the range 200249 for a long time, and will advice him as well about the change of the k limits ofthese N. Anyway, any help on these single ranges is welcome. Luigi p.s. just asked Oleg if he plans to update the limits, and started N=205 from 140737488355327 to 150000000000000 and N=204 from 281474976710655 to 300000000000000 using Feromant_CUDA pps: I am also working on 201, 202 and 203 to get a "more round" k limit. Last fiddled with by ET_ on 20191123 at 10:11 

20210102, 16:18  #28 
"Mark"
Apr 2003
Between here and the
5×1,249 Posts 
Here is the current "wanted" list per my program. I noticed that some of these reservations are from 2019.
Code:
type 1 means that n was tested from k1 to k2, but k1 != 1 type 2 means that n was tested from k1 to k2 and k3 to k4, but not between k2 and k3 type 3 means that that some n in the group were not tested to the same k as others 30 <= n < 100, each group has 1 n 100 <= n < 1000, each group has 10 n from xx0 to xx9 1000 <= n < 10000, each group has 100 n from xx00 to xx99 10000 <= n < 100000, each group has 1000 n from xx000 to xx999 100000 <= n are not included type 2: n 40 500e14510e14 12 days with mmff Dylan Parsons 2020/04/29 type 2: n 41 800e14900e14 129 days with mmff Liam McGonegal 2020/08/18 type 2: n 150159 1000e121100e12 70 days with FeromantCUDA Alex_soldier 2020/10/06 type 3: n 205209 190e121130e12 1207 days with FeromantCUDA Roman Maznichenko 2020/12/12 type 3: n 203204 610e121130e12 668 days with FeromantCUDA available type 2: n 500509 1000e102000e10 45 days with FeromantCUDA Ryan Propper 2019/05/01 type 2: n 510519 1000e102000e10 45 days with FeromantCUDA Ryan Propper 2019/05/01 type 2: n 520529 1000e102000e10 45 days with FeromantCUDA Ryan Propper 2019/05/01 type 2: n 531539 870e102000e10 50 days with FeromantCUDA Ryan Propper 2019/04/25 type 2: n 530 1000e102000e10 45 days with FeromantCUDA Ryan Propper 2019/04/25 type 2: n 540549 870e102000e10 50 days with FeromantCUDA Ryan Propper 2019/05/01 type 2: n 550559 870e102000e10 50 days with FeromantCUDA Ryan Propper 2019/05/01 type 2: n 560569 870e102000e10 50 days with FeromantCUDA Ryan Propper 2019/05/01 type 2: n 570579 350e102000e10 73 days with FeromantCUDA Peter Strasser 2019/04/23 type 2: n 580589 350e102000e10 73 days with FeromantCUDA Peter Strasser 2019/04/23 type 2: n 590599 350e102000e10 73 days with FeromantCUDA Peter Strasser 2019/04/23 type 2: n 601609 250e10300e10 210 days with Feromant Pacher Maximilian 2020/04/21 type 3: n 600 250e10400e10 630 days with Feromant Gary Gostin 2020/12/23 type 2: n 610619 250e10300e10 210 days with Feromant Pacher Maximilian 2020/04/21 type 2: n 620629 250e10300e10 210 days with Feromant Pacher Maximilian 2020/04/21 type 2: n 630639 250e10300e10 210 days with Feromant Pacher Maximilian 2020/04/21 type 2: n 660669 200e10220e10 84 days with Feromant Roman Maznichenko 2020/12/12 type 2: n 670679 200e10220e10 84 days with Feromant Roman Maznichenko 2020/12/12 type 2: n 680689 200e10220e10 84 days with Feromant Roman Maznichenko 2020/12/12 type 2: n 750759 100e10120e10 84 days with Feromant Roman Maznichenko 2020/12/12 type 2: n 760769 100e10120e10 84 days with Feromant Roman Maznichenko 2020/12/12 type 2: n 770779 100e10120e10 84 days with Feromant Roman Maznichenko 2020/12/12 type 2: n 780789 100e10120e10 84 days with Feromant Roman Maznichenko 2020/12/12 type 2: n 790799 100e10120e10 84 days with Feromant Roman Maznichenko 2020/12/12 type 2: n 45004599 7e810e8 209 days with Feromant available type 2: n 4500 45e850e8 348 days with Feromant Franz Fritz 2020/10/21 type 2: n 45014599 45e860e8 1043 days with Feromant Franz Fritz 2020/10/21 type 3: n 45014599 65e875e8 695 days with Feromant available type 2: n 46004699 7e810e8 209 days with Feromant available type 2: n 46004699 45e860e8 1043 days with Feromant Franz Fritz 2020/10/21 type 2: n 47004799 7e810e8 209 days with Feromant available type 2: n 47004799 45e860e8 1043 days with Feromant Franz Fritz 2020/10/21 type 2: n 48004899 7e810e8 209 days with Feromant available type 2: n 48004899 45e860e8 1043 days with Feromant Franz Fritz 2020/10/21 type 2: n 49004999 7e810e8 209 days with Feromant available type 2: n 49004999 45e860e8 1043 days with Feromant Franz Fritz 2020/10/21 type 2: n 5000 450e7600e7 1737 days with gfndsieve+pfgw available type 3: n 50015099 450e7650e7 2315 days with gfndsieve+pfgw available type 3: n 55015599 400e7450e7 579 days with gfndsieve+pfgw available type 3: n 57015799 300e7400e7 1158 days with gfndsieve+pfgw Ryan Propper 2019/07/10 type 3: n 60016099 300e7400e7 1158 days with gfndsieve+pfgw available type 3: n 65016599 200e7300e7 1158 days with gfndsieve+pfgw available type 2: n 70007099 80e7100e7 232 days with gfndsieve+pfgw Pacher Maximilian 2020/04/25 type 2: n 7000 120e7150e7 348 days with gfndsieve+pfgw available type 3: n 70017099 120e7200e7 926 days with gfndsieve+pfgw available type 2: n 71007199 80e7100e7 232 days with gfndsieve+pfgw Pacher Maximilian 2020/04/25 type 2: n 72007299 80e7100e7 232 days with gfndsieve+pfgw Pacher Maximilian 2020/04/25 type 2: n 73007399 80e7100e7 232 days with gfndsieve+pfgw Pacher Maximilian 2020/04/25 type 2: n 74007499 80e7100e7 232 days with gfndsieve+pfgw Pacher Maximilian 2020/04/25 type 2: n 75007599 80e7100e7 232 days with gfndsieve+pfgw Pacher Maximilian 2020/04/25 type 2: n 76007699 80e7100e7 232 days with gfndsieve+pfgw Pacher Maximilian 2020/04/25 type 2: n 77007799 80e7100e7 232 days with gfndsieve+pfgw Pacher Maximilian 2020/04/25 type 2: n 78007899 80e7100e7 232 days with gfndsieve+pfgw Pacher Maximilian 2020/04/25 type 2: n 79007999 80e7100e7 232 days with gfndsieve+pfgw Pacher Maximilian 2020/04/25 type 2: n 8000 80e7100e7 232 days with gfndsieve+pfgw Pacher Maximilian 2020/04/25 type 3: n 80018099 80e7120e7 463 days with gfndsieve+pfgw available type 3: n 90019099 60e780e7 232 days with gfndsieve+pfgw available type 2: n 10000 420e6450e6 695 days with gfndsieve+pfgw available type 3: n 1000110999 420e6600e6 4167 days with gfndsieve+pfgw available type 2: n 11000 250e6300e6 1158 days with gfndsieve+pfgw available type 3: n 1100111999 250e6420e6 3936 days with gfndsieve+pfgw available type 2: n 12000 150e6160e6 232 days with gfndsieve+pfgw available type 3: n 1200112999 150e6250e6 2315 days with gfndsieve+pfgw available type 2: n 1400014999 70e6100e6 695 days with gfndsieve+pfgw Adolf Nordin 2019/05/30 type 3: n 1400114999 120e6150e6 695 days with gfndsieve+pfgw available type 2: n 16000 60e670e6 232 days with gfndsieve+pfgw available type 3: n 1600116999 60e6120e6 1389 days with gfndsieve+pfgw available type 3: n 1800118999 50e660e6 232 days with gfndsieve+pfgw available type 3: n 2000120999 40e650e6 724 days with gfndsieve+pfgw available type 3: n 2200122999 32e640e6 579 days with gfndsieve+pfgw available type 3: n 2300123999 20e632e6 869 days with gfndsieve+pfgw available type 3: n 2500125999 12e620e6 579 days with gfndsieve+pfgw available type 3: n 3000130999 8e612e6 1544 days with gfndsieve+pfgw available type 3: n 3500135999 4e68e6 1544 days with gfndsieve+pfgw available type 3: n 4000140999 300e4400e4 386 days with gfndsieve+pfgw available type 3: n 4500145999 220e4300e4 309 days with gfndsieve+pfgw available type 3: n 5000150999 180e4220e4 4630 days with gfndsieve+pfgw available type 3: n 5500155999 70e4180e4 12732 days with gfndsieve+pfgw Gary Gostin 2020/11/29 type 3: n 6000160999 50e470e4 2315 days with gfndsieve+pfgw Gary Gostin 2020/11/29 type 3: n 6500165999 40e450e4 1158 days with gfndsieve+pfgw Gary Gostin 2020/11/29 type 3: n 7000170999 35e440e4 579 days with gfndsieve+pfgw Gary Gostin 2020/11/29 type 3: n 7500175999 30e435e4 579 days with gfndsieve+pfgw Gary Gostin 2020/11/29 type 3: n 8000180999 25e430e4 579 days with gfndsieve+pfgw Dylan Delgado 2020/12/16 type 3: n 9000190999 20e425e4 579 days with gfndsieve+pfgw Dylan Delgado 2020/12/16 
20210102, 18:18  #29 
Banned
"Luigi"
Aug 2002
Team Italia
2·7^{4} Posts 
Thank you Mark, Time for a close call to the older assignments.

20210103, 04:52  #30  
"Gary"
Aug 2015
Texas
3F_{16} Posts 
Quote:
https://www.mersenneforum.org/showpo...69&postcount=9 This would apply to most ranges with n >= ~5000 where gfndsieve + pfgw is the fastest approach and are usually Fermat+GFN searches. This request is for consistency with the GFN ranges tracked at ProthSearch, and is the result of some discussion between Wilfrid, Luigi and myself. So far there has been no community feedback / debate on this request. Mark and others, what are your thoughts? Mark, this differs from the xx0  xx9 convention that you have advocated in the past and is incorporated in your program. 

20210103, 14:16  #31  
"Mark"
Apr 2003
Between here and the
6245_{10} Posts 
Quote:
IMO, it makes more sense to reserve a <= n < b where both a and b are xx0. This way neither a nor b are handled twice. 

20210103, 18:14  #32  
"Gary"
Aug 2015
Texas
3F_{16} Posts 
Quote:
Separately, I have been doing some GFNonly searches with n <= 3000, where the K wavefront for GFN is much lower than the Fermat wavefront. For these I have been reserving ranges and reporting results only through ProthSearch. Currently I seem to be the only person active in these GFNonly ranges. Wilfrid prefers tracking GFN ranges as xx1  xx0 since that is consistent with the original GFN paper by Bjorn and Riesel. nf = xx0 is the most important of the two endpoints since it determines the "shape" of that table at http://www.prothsearch.com/GFNsrch.txt. So I have started using nf = xx0 for all my Fermat+GFN and GFNonly ranges. For ni on GFNonly ranges with small N, Wilfrid and I agree on using ni = xx1 to avoid overlap. For ni on Fermat+GFN ranges with larger N, I was also originally thinking ni = xx1. However Wilfrid pointed out that, historically, GFN search ranges have been a complex "patchwork" of N/K rectangles with different conventions for ni and nf. This makes it difficult to track ranges and ensure no gaps have been left, which I believe he does by hand. For Fermat+GFN ranges with large N, Wilfrid suggested using ni = xx0 and nf = xx0 since it is "safe" (will not leave a gap relative to a prior range with nf = xx9 below it or ni = xx1 above it) and the incremental runtime is small. For example, searching n = 5000  5500 instead of n = 5001  5500 adds only 0.2% to the runtime. This seems acceptably small to me, so I am now using ni = xx0 for all my Fermat+GFN ranges. 

20210104, 17:08  #33 
"Mark"
Apr 2003
Between here and the
5×1,249 Posts 
The list I created is generated via the attached source code which I haven't changed in over 18 months. Since I have not actively participated in a long time, maybe someone else will be willing to make the necessary changes to support xx0. It should be fairly easy to do. This code will help identify gaps based upon the completed ranges reported at FermatSearch.

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