20200522, 04:37  #34 
Romulan Interpreter
Jun 2011
Thailand
20607_{8} Posts 
Wow! Ben, that is freaking wonderful! And you kept it for yourself for such a long time!
Now I will have to upgrade yafu... (grrr... still using old versions here and there, you know, if it works, don't fix it...) (unfortunately, since I discovered pari, I did most of my "numerology" in it, so the loops and screws came somehow too late, but be sure I will give it a try, I still have some ideas in a far side corner of the brain, which I never had the time/knowledge/balls to follow...) Last fiddled with by LaurV on 20200522 at 04:39 
20200522, 16:24  #35  
"Ben"
Feb 2007
2^{6}×3×17 Posts 
Quote:
Last fiddled with by bsquared on 20200522 at 16:24 

20200527, 18:48  #36 
"Ben"
Feb 2007
2^{6}·3·17 Posts 
I've been spending a little time with the TLP variation again... integrating jasonp's batch factoring code and investigating parameters. The batch factoring code provides a huge speedup for TLP, easily twice as fast as before at C110 sizes. The crossover with DLP quadratic sieve now appears to be around C110, although I'm still not convinced I have found optimal parameters for TLP. There are a lot of influential parameters. So as of now, TLP is still slower than regular DLP in sizes of interest to the quadratic sieve (C95C100).
Code:
C110 48178889479314834847826896738914354061668125063983964035428538278448985505047157633738779051249185304620494013 80 threads of cascadelake based xeon: DLP: 1642 seconds for sieving TLP: 1578 seconds for sieving 
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