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Old 2021-05-06, 16:14   #100
bsquared
 
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"Ben"
Feb 2007

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Looks like it is trying to run TLP, which is still somewhat experimental. Set forceDLP=1 in yafu.ini or use -forceDLP on command line. I should set the crossover point much higher.
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Old 2021-05-08, 15:59   #101
Stargate38
 
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"Daniel Jackson"
May 2011
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Default Bug in SIQS

This number crashes YAFU when I try to factor it by SIQS: 18425466191500234497808154837889417418704176536401223

Code:
C:\Numbers\aliqueit112>yafu siqs(18425466191500234497808154837889417418704176536401223)
Applying tune_info entry for WIN64 - Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz


YAFU Version 2.01
Built with Microsoft Visual Studio 1928
Using GMP-ECM 7.0.4, Powered by MPIR 3.0.0
Detected Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz
Detected L1 = 32768 bytes, L2 = 8388608 bytes, CL = 64 bytes
Using 1 random witness for Rabin-Miller PRP checks
Cached 664579 primes; max prime is 9999991

===============================================================
======= Welcome to YAFU (Yet Another Factoring Utility) =======
=======             bbuhrow@gmail.com                   =======
=======     Type help at any time, or quit to quit      =======
===============================================================

>>
starting SIQS on c53: 18425466191500234497808154837889417418704176536401223

==== sieve params ====
n = 54 digits, 177 bits
factor base: 1824 primes (max prime = 33317)
single large prime cutoff: 2165605 (65 * pmax)
double large prime range from 1110022489 to 122254169454
DLP MFB = 1.75
using AVX2 enabled 32k sieve core
sieve interval: 2 blocks of size 32768
polynomial A has ~ 6 factors
using multiplier of 7
using SPV correction of 20 bits, starting at offset 32
trial factoring cutoff at 59 bits

==== sieving in progress (  8 threads):    1888 relations needed ====
====             Press ctrl-c to abort and save state            ====

C:\Numbers\aliqueit112>
factor.log (different number):

Code:
05/08/21 12:00:58, 
05/08/21 12:00:58, ****************************
05/08/21 12:00:58, Starting factorization of 7441641010125238485066955189052433051233165900729353
05/08/21 12:00:58, using pretesting plan: deep
05/08/21 12:00:58, using tune info for qs/gnfs crossover
05/08/21 12:00:58, ****************************
05/08/21 12:00:58, rho: x^2 + 3, starting 1000 iterations on C52
05/08/21 12:00:58, rho: x^2 + 2, starting 1000 iterations on C52
05/08/21 12:00:58, rho: x^2 + 1, starting 1000 iterations on C52
05/08/21 12:00:58, pm1: starting B1 = 150K, B2 = gmp-ecm default on C52
05/08/21 12:00:58, current ECM pretesting depth: 0.00
05/08/21 12:00:58, scheduled 30 curves at B1=2000 toward target pretesting depth of 17.33
05/08/21 12:00:58, Finished 30 curves using GMP-ECM method on C52 input, B1=2k, B2=gmp-ecm default
05/08/21 12:00:58, current ECM pretesting depth: 15.18
05/08/21 12:00:58, scheduled 33 curves at B1=11000 toward target pretesting depth of 17.33
05/08/21 12:00:59, Finished 33 curves using GMP-ECM method on C52 input, B1=11k, B2=gmp-ecm default
05/08/21 12:00:59, final ECM pretested depth: 17.41
05/08/21 12:00:59, scheduler: switching to sieve method
05/08/21 12:00:59, starting SIQS on c52: 7441641010125238485066955189052433051233165900729353
05/08/21 12:00:59, random seed: 271793012
What could be causing this?

Last fiddled with by Stargate38 on 2021-05-08 at 16:03
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Old 2021-05-10, 15:40   #102
bsquared
 
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"Ben"
Feb 2007

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Thanks for the report. I found the problem, will update github tonight.
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Old 2021-05-11, 15:02   #103
bsquared
 
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"Ben"
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Updated .exe, version 2.02, works for me for both inputs now.
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