20210615, 00:26  #276  
Jan 2012
Toronto, Canada
2^{5}·3 Posts 
Quote:
Code:
Line 1 : {'c4': '1', 'c3': '0', 'c2': '2', 'c1': '12', 'c0': '10', 'Y1': '3105317578628153423506739578983437982692791417722955507', 'Y0': '1783785732675759131389551214804762300612349559114245473'} n: 442480456268307355970377486465969784979730470279409306982158698829691328120816007497057176155135483213248563103903861494465722951888948657031409779919681670455655411204200835023769409621132838744169 # e = 2.41372557e13 skew: 1.16292 type: snfs c4: 1 c3: 0 c2: 2 c1: 12 c0: 10 Y1: 3105317578628153423506739578983437982692791417722955507 Y0: 1783785732675759131389551214804762300612349559114245473 

20210615, 00:28  #277  
"Max"
Jun 2016
Toronto
929 Posts 
Quote:
Thank you so much! 

20210615, 01:04  #278  
"Max"
Jun 2016
Toronto
929 Posts 
Quote:


20210615, 01:15  #279 
"Max"
Jun 2016
Toronto
929 Posts 

20210615, 03:01  #280  
"Max"
Jun 2016
Toronto
929_{10} Posts 
Quote:
swishzzz, thank you for creating and ECMing these stage 12 numbers! 

20210615, 03:50  #281 
"Ben"
Feb 2007
3,733 Posts 
Thanks for the spin! I will pick some parameters and test sieve. The number has survived 60k+ curves at B1=260M so it's probably ready for SNFS.

20210615, 06:08  #282  
Aug 2020
79*6581e4;3*2539e3
659 Posts 
Quote:
In that regard, I think at some point both cado and msieve go through several filtering iterations in which the excess steadily increases. But without any additional sieving. What is that about? 

20210615, 11:07  #283 
Aug 2020
79*6581e4;3*2539e3
293_{16} Posts 
It's finally at the linear algebra stage, took 31.1e6 relations instead of the initially estimated 17.6e6.
I let cado do the LA, ETA for krylov is 4 hours, so the total will be about 156 hours. Still better than GNFS which would likely haven taken around 200+ hours. But I'm sure glad when this is over. ;) 
20210615, 12:14  #284  
"Max"
Jun 2016
Toronto
929 Posts 
Quote:
How much disk space, in MB/GB, is taken by the raw relations right now? 

20210615, 12:50  #285 
Aug 2020
79*6581e4;3*2539e3
659 Posts 
I'd still like to see this run with the alternative parameters. Or with alternative poly.
The relations are 3.8 GB in gzip'ed form. If you're interested in them, I could upload them somewhere. 
20210615, 14:37  #286  
"Max"
Jun 2016
Toronto
929 Posts 
Quote:
When I factored some c168/snfs170 from plot 2, CADO failed on the last step (didn't find a suitable small prime [as it didn't exist at all probably] and did not proceed anyways [as msieve would]). The readme file says it's a known CADO issue with SNFS degree 4 polys with a particular Galois group and SNFS degree 8 polys. All suggested fixes on CADO didn't work. I had to transfer ~9000 gzipped files (just under 1 GB) to Windows, unzip them, create the first in the sequence oneline file with N: ... in it, glue them all together, and feed into msieve as raw relations. msieve was successful in that case and I thought it would always be an acceptable solution. Not true, it was just luck, as was pointed out by EdH: https://www.mersenneforum.org/showpo...0&postcount=94. If it's not trouble for you, yes, I would like to look at those 3.8 GB (along with the used poly), ideally uploaded in maybe 4 separate chunks, ~1 GB each. I usually use Mega (https://mega.io/) for huge data transfers but anything will work (e.g., Google Drive, etc.) I'll try to take in the relations and build the matrix on msieve. A zipped matrix should also be smaller than 3.8 GB I hope. :) 

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