20210104, 04:05  #859  
Jun 2012
Boulder, CO
100001001_{2} Posts 
Quote:


20210104, 04:24  #860 
"Curtis"
Feb 2005
Riverside, CA
3·1,559 Posts 
The CADO group has reported jobs with Q over 10G. It'll run a while.
It may be that Q is limited to 32bit numbers unless one of the bignumber compile flags is set; obviously we've set the one that allows LP above 32, but the one that allows more than 2^32 relations may also be needed to allow Q > 2^32. I selected these 33/36 bounds because going bigger LP would possibly need more than 2^32 raw relations and thus need that flag set. Anyway, you're nowhere near such bounds. 
20210104, 13:32  #861 
Apr 2020
193 Posts 
The siever runs just fine with Q > 2^32. There is a flag "SUPPORT_LARGE_Q" which is needed to support Qlattice basis coordinates larger than 2^31. For this job the basis coordinates are more like 2^17 so it won't be a problem.
The authors made a comment in the code to the effect that they don't really know exactly when SUPPORT_LARGE_Q becomes necessary. They suggest it's possible the coordinates could get too large when Q > 2^30, but I expect this would be rare unless the skew is enormous. If one of the basis coordinates for a particular Q is too big, the siever prints Code:
# Warning, specialq basis is too skewed, skipping this specialq. Define SUPPORT_LARGE_Q to proceed anyway. 
20210104, 19:38  #862 
Oct 2007
Manchester, UK
10100111101_{2} Posts 
Progress on the t2200 file:
All composites larger than 2^1018 have had 224 curves @ B1=50e3, B2=13.7e6 For the ~13500 composites less than 2^1018 which can be run on GPU, I'm running 1152 curves per candidate @ B1=3e6, B2=14e9. So far 6250 composites have completed stage 1 and 4000 have also completed stage 2. It will be a couple of months before this finishes. I've attached an updated file of the now 629 unique factors found so far. A couple of highlights: Code:
p50, 15623559626630713111877621077337100532126980341173 group order: 2^3 * 23 * 97 * 8,837 * 21,407 * 35,731 * 169,777 * 396,703 * 669,847 * 1,807,189 * 1,588,404,343 p53, 15179119343320317741925064897365462655253427486861001 group order: 2^2 * 3 * 7 * 11 * 13^2 * 19 * 59 * 83 * 677 * 1,049 * 8,999 * 15,277 * 34,313 * 237,163 * 331,171 * 1,089,653 * 3,643,859 
20210105, 23:21  #863 
Jun 2012
Boulder, CO
5×53 Posts 

20210107, 00:08  #864 
Jun 2012
Boulder, CO
265_{10} Posts 
Code:
found 535727162 hash collisions in 1974476487 relations added 1 free relations commencing duplicate removal, pass 2 found 9 duplicates and 1974476479 unique relations memory use: 16280.0 MB reading ideals above 1475805184 commencing singleton removal, initial pass 
20210109, 17:11  #865 
"Curtis"
Feb 2005
Riverside, CA
3·1,559 Posts 
How optimistic was it?

20210109, 17:22  #866 
Jun 2012
Boulder, CO
5·53 Posts 

20210109, 21:49  #867 
Jun 2012
Boulder, CO
5·53 Posts 
In case anyone is enough of an msieve fortune teller, here's how the current run is progressing so far:
Code:
found 576046017 hash collisions in 2069585215 relations added 1 free relations commencing duplicate removal, pass 2 found 10 duplicates and 2069585206 unique relations memory use: 16280.0 MB reading ideals above 1551826944 commencing singleton removal, initial pass memory use: 41024.0 MB reading all ideals from disk memory use: 39164.1 MB commencing inmemory singleton removal begin with 2069585205 relations and 2015728165 unique ideals reduce to 940662702 relations and 730460437 ideals in 20 passes max relations containing the same ideal: 35 reading ideals above 720000 commencing singleton removal, initial pass memory use: 21024.0 MB reading all ideals from disk memory use: 44497.0 MB keeping 879692958 ideals with weight <= 200, target excess is 5062658 commencing inmemory singleton removal begin with 940662704 relations and 879692958 unique ideals reduce to 939764688 relations and 878794787 ideals in 16 passes max relations containing the same ideal: 200 removing 9227310 relations and 9073191 ideals in 2000000 cliques commencing inmemory singleton removal begin with 930537378 relations and 878794787 unique ideals reduce to 925704051 relations and 866728266 ideals in 19 passes max relations containing the same ideal: 200 removing 7338135 relations and 6830981 ideals in 2000000 cliques commencing inmemory singleton removal begin with 918365916 relations and 866728266 unique ideals reduce to 914423445 relations and 857443713 ideals in 16 passes max relations containing the same ideal: 200 removing 6760210 relations and 6153345 ideals in 2000000 cliques commencing inmemory singleton removal begin with 907663235 relations and 857443713 unique ideals reduce to 903941424 relations and 848958168 ideals in 17 passes max relations containing the same ideal: 200 removing 6478726 relations and 5837191 ideals in 2000000 cliques commencing inmemory singleton removal begin with 897462698 relations and 848958168 unique ideals 
20210109, 22:14  #868  
Apr 2020
193 Posts 
Quote:
If you do get a matrix I expect it will be well over 100M. 

20210111, 17:05  #869  
Jun 2012
Boulder, CO
109_{16} Posts 
Quote:
Code:
Sun Jan 10 19:56:49 2021 commencing inmemory singleton removal Sun Jan 10 19:58:41 2021 begin with 621912609 relations and 624555581 unique ideals Sun Jan 10 20:33:55 2021 reduce to 616867386 relations and 611731201 ideals in 17 passes Sun Jan 10 20:33:55 2021 max relations containing the same ideal: 167 Sun Jan 10 20:37:11 2021 relations with 0 large ideals: 289519 Sun Jan 10 20:37:11 2021 relations with 1 large ideals: 190512 Sun Jan 10 20:37:11 2021 relations with 2 large ideals: 1663725 Sun Jan 10 20:37:11 2021 relations with 3 large ideals: 9813804 Sun Jan 10 20:37:11 2021 relations with 4 large ideals: 36668291 Sun Jan 10 20:37:11 2021 relations with 5 large ideals: 89881466 Sun Jan 10 20:37:11 2021 relations with 6 large ideals: 145991448 Sun Jan 10 20:37:11 2021 relations with 7+ large ideals: 332368621 Sun Jan 10 20:37:11 2021 commencing 2way merge 

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