20210927, 12:35  #287 
"Ed Hall"
Dec 2009
Adirondack Mtns
2^{4}·257 Posts 

20210927, 15:03  #288 
"Ben"
Feb 2007
3×1,193 Posts 

20210927, 15:06  #289  
"Ben"
Feb 2007
6773_{8} Posts 
Quote:


20210927, 15:06  #290 
"Ben"
Feb 2007
3×1,193 Posts 

20210927, 15:29  #291 
"James Heinrich"
May 2004
exNorthern Ontario
DCA_{16} Posts 
These are the same ggnfs executables I use with v1.34 (on Win7) and they do not produce linemash output there, so there's some minor difference between 1.34+Win7 and 2.07+Win10. I'm not sure if YAFU manipulates (or even sees?) the ggnfs output at all, if not it may not be anything you can fix.

20211004, 18:32  #292 
"Oliver"
Sep 2017
Porta Westfalica, DE
2^{8}·3 Posts 
When running the current build on GIT on an Ivy Bridge processor, I get an invalid instruction error (MULX, since Ivy Bridge does not support BMI(2)) at 0x000000013F571B43. This happens when the prompt (>> ) is already displayed. Is the processor too old to be supported out of the box?

20211109, 11:20  #293 
"Jane Sullivan"
Jan 2011
Beckenham, UK
3^{2}·31 Posts 
2.07 looping
I've just had an incidence of version 2.07 looping. I'm factoring a C95 cofactor of 91+67.70, and it finds a PRP12 pretty quickly.
Code:
11/09/21 10:56:48, 11/09/21 10:56:48, **************************** 11/09/21 10:56:48, Starting factorization of 37326054197207092012449090827705952368469419408554473227653125359479846855729858064360761261 11/09/21 10:56:48, using pretesting plan: noecm 11/09/21 10:56:48, no tune info: using qs/gnfs crossover of 95 digits 11/09/21 10:56:48, no tune info: using qs/snfs crossover of 75 digits 11/09/21 10:56:48, **************************** 11/09/21 10:56:48, rho: x^2 + 3, starting 1000 iterations on C92 11/09/21 10:56:48, rho: x^2 + 2, starting 1000 iterations on C92 11/09/21 10:56:48, prp12 = 129399203081 11/09/21 10:56:48, rho: x^2 + 2, starting 1000 iterations on C81 11/09/21 10:56:48, rho: x^2 + 1, starting 1000 iterations on C81 11/09/21 10:56:49, pm1: starting B1 = 150K, B2 = gmpecm default on C81 11/09/21 10:56:49, final ECM pretested depth: 0.00 11/09/21 10:56:49, scheduler: switching to sieve method 11/09/21 10:56:49, starting SIQS on c81: 288456600260838603397898547740484692177664798616755193922608276433886354497755781 11/09/21 10:56:49, random seed: 12023120550948929971 11/09/21 10:57:29, ==== sieve params ==== 11/09/21 10:57:29, n = 82 digits, 273 bits 11/09/21 10:57:29, factor base: 49712 primes (max prime = 1290539) 11/09/21 10:57:29, single large prime cutoff: 122601205 (95 * pmax) 11/09/21 10:57:29, double large prime range from 1665490910521 to 362485408947117 11/09/21 10:57:29, DLP MFB = 1.80 11/09/21 10:57:29, allocating 7 large prime slices of factor base 11/09/21 10:57:29, buckets hold 2048 elements 11/09/21 10:57:29, large prime hashtables have 802816 bytes 11/09/21 10:57:29, using AVX2 enabled 32k sieve core 11/09/21 10:57:29, sieve interval: 7 blocks of size 32768 11/09/21 10:57:29, polynomial A has ~ 10 factors 11/09/21 10:57:29, using multiplier of 29 11/09/21 10:57:29, using multiplier of 29 11/09/21 10:57:29, using Q2(x) polynomials for kN mod 8 = 1 11/09/21 10:57:29, using SPV correction of 21 bits, starting at offset 34 11/09/21 10:57:29, trial factoring cutoff at 85 bits 11/09/21 10:57:29, ==== sieving started ( 4 threads) ==== 11/09/21 10:58:27, trial division touched 12767107 sieve locations out of 51825213440 11/09/21 10:58:27, total reports = 12767107, total surviving reports = 3209794 11/09/21 10:58:27, total blocks sieved = 1581580, avg surviving reports per block = 2.03 11/09/21 10:58:27, dlpecm: 1 failures, 211956 attempts, 1466779 outside range, 1303807 prp, 204221 useful 11/09/21 10:58:27, 50298 relations found: 19524 full + 30774 from 411949 partial, using 112970 polys (437 A polys) 11/09/21 10:58:27, on average, sieving found 3.82 rels/poly and 4377.39 rels/sec 11/09/21 10:58:27, trial division touched 12767107 sieve locations out of 51825213440 11/09/21 10:58:27, ==== post processing stage (msieve1.38) ==== 11/09/21 10:58:27, QS elapsed time = 98.5686 seconds. 11/09/21 10:58:28, begin singleton removal with 431473 relations 11/09/21 10:58:28, reduce to 94979 relations in 9 passes 11/09/21 10:58:29, recovered 94979 relations 11/09/21 10:58:29, recovered 64291 polynomials 11/09/21 10:58:29, attempting to build 50298 cycles 11/09/21 10:58:29, found 50298 cycles from 94979 relations in 4 passes 11/09/21 10:58:29, distribution of cycle lengths: 11/09/21 10:58:29, length 1 : 19524 11/09/21 10:58:29, length 2 : 14882 11/09/21 10:58:29, length 3 : 8517 11/09/21 10:58:29, length 4 : 4253 11/09/21 10:58:29, length 5 : 1830 11/09/21 10:58:29, length 6 : 768 11/09/21 10:58:29, length 7 : 322 11/09/21 10:58:29, length 9+: 202 11/09/21 10:58:29, largest cycle: 15 relations 11/09/21 10:58:29, matrix is 49712 x 50298 (9.2 MB) with weight 2012082 (40.00/col) 11/09/21 10:58:29, sparse part has weight 2012082 (40.00/col) 11/09/21 10:58:29, filtering completed in 4 passes 11/09/21 10:58:29, matrix is 39980 x 40044 (7.5 MB) with weight 1648559 (41.17/col) 11/09/21 10:58:29, sparse part has weight 1648559 (41.17/col) 11/09/21 10:58:29, saving the first 48 matrix rows for later 11/09/21 10:58:29, matrix is 39932 x 40044 (6.4 MB) with weight 1394921 (34.83/col) 11/09/21 10:58:29, sparse part has weight 1275284 (31.85/col) 11/09/21 10:58:29, matrix includes 64 packed rows 11/09/21 10:58:29, using block size 16017 for processor cache size 6144 kB 11/09/21 10:58:29, commencing Lanczos iteration 11/09/21 10:58:29, memory use: 5.5 MB 11/09/21 10:58:33, lanczos halted after 633 iterations (dim = 39928) 11/09/21 10:58:33, recovered 17 nontrivial dependencies 11/09/21 10:58:34, Lanczos elapsed time = 5.3160 seconds. 11/09/21 10:58:34, Sqrt elapsed time = 0.8240 seconds. 11/09/21 10:58:34, SIQS elapsed time = 104.7100 seconds. 11/09/21 10:58:34, Code:
11/09/21 10:58:34, final ECM pretested depth: 0.00 11/09/21 10:58:34, scheduler: switching to sieve method 11/09/21 10:58:34, starting SIQS on c81: 288456600260838603397898547740484692177664798616755193922608276433886354497755781 11/09/21 10:58:34, random seed: 16728249449343881367 11/09/21 10:58:54, ==== sieve params ==== 11/09/21 10:58:54, n = 82 digits, 273 bits 11/09/21 10:58:54, factor base: 49712 primes (max prime = 1290539) 11/09/21 10:58:54, single large prime cutoff: 122601205 (95 * pmax) 11/09/21 10:58:54, double large prime range from 1665490910521 to 362485408947117 11/09/21 10:58:54, DLP MFB = 1.80 11/09/21 10:58:54, using AVX2 enabled 32k sieve core 11/09/21 10:58:54, sieve interval: 7 blocks of size 32768 11/09/21 10:58:54, polynomial A has ~ 10 factors 11/09/21 10:58:54, using multiplier of 29 11/09/21 10:58:54, using multiplier of 29 11/09/21 10:58:54, using Q2(x) polynomials for kN mod 8 = 1 11/09/21 10:58:54, using SPV correction of 21 bits, starting at offset 34 11/09/21 10:58:54, trial factoring cutoff at 85 bits 11/09/21 10:58:54, ==== sieving started ( 4 threads) ==== 11/09/21 10:58:54, trial division touched 0 sieve locations out of 0 11/09/21 10:58:54, total reports = 0, total surviving reports = 0 11/09/21 10:58:54, total blocks sieved = 0, avg surviving reports per block = nan(ind) 11/09/21 10:58:54, dlpecm: 0 failures, 0 attempts, 0 outside range, 0 prp, 0 useful 11/09/21 10:58:54, 50299 relations found: 19524 full + 30775 from 411950 partial, using 0 polys (1 A polys) 11/09/21 10:58:54, on average, sieving found inf rels/poly and 21100.86 rels/sec 11/09/21 10:58:54, trial division touched 0 sieve locations out of 0 11/09/21 10:58:54, ==== post processing stage (msieve1.38) ==== 11/09/21 10:58:54, QS elapsed time = 20.4612 seconds. 11/09/21 10:58:54, begin singleton removal with 431473 relations 11/09/21 10:58:54, reduce to 94980 relations in 9 passes 11/09/21 10:58:55, recovered 94980 relations 11/09/21 10:58:55, recovered 64292 polynomials 11/09/21 10:58:55, attempting to build 50298 cycles 11/09/21 10:58:55, found 50298 cycles from 94980 relations in 4 passes 11/09/21 10:58:55, distribution of cycle lengths: 11/09/21 10:58:55, length 1 : 19524 11/09/21 10:58:55, length 2 : 14882 11/09/21 10:58:55, length 3 : 8517 11/09/21 10:58:55, length 4 : 4253 11/09/21 10:58:55, length 5 : 1830 11/09/21 10:58:55, length 6 : 768 11/09/21 10:58:55, length 7 : 322 11/09/21 10:58:55, length 9+: 202 11/09/21 10:58:55, largest cycle: 15 relations 11/09/21 10:58:56, matrix is 49712 x 50298 (9.2 MB) with weight 2012093 (40.00/col) 11/09/21 10:58:56, sparse part has weight 2012093 (40.00/col) 11/09/21 10:58:56, filtering completed in 4 passes 11/09/21 10:58:56, matrix is 39980 x 40044 (7.5 MB) with weight 1648559 (41.17/col) 11/09/21 10:58:56, sparse part has weight 1648559 (41.17/col) 11/09/21 10:58:56, saving the first 48 matrix rows for later 11/09/21 10:58:56, matrix is 39932 x 40044 (6.4 MB) with weight 1394921 (34.83/col) 11/09/21 10:58:56, sparse part has weight 1275284 (31.85/col) 11/09/21 10:58:56, matrix includes 64 packed rows 11/09/21 10:58:56, using block size 16017 for processor cache size 6144 kB 11/09/21 10:58:56, commencing Lanczos iteration 11/09/21 10:58:56, memory use: 5.5 MB 11/09/21 10:58:59, lanczos halted after 633 iterations (dim = 39928) 11/09/21 10:58:59, recovered 17 nontrivial dependencies 11/09/21 10:59:00, Lanczos elapsed time = 5.2600 seconds. 11/09/21 10:59:00, Sqrt elapsed time = 0.7970 seconds. 11/09/21 10:59:00, SIQS elapsed time = 26.5175 seconds. 11/09/21 10:59:00, 11/09/21 10:59:00, 11/09/21 10:59:00, final ECM pretested depth: 0.00 11/09/21 10:59:00, scheduler: switching to sieve method 11/09/21 10:59:00, starting SIQS on c81: 288456600260838603397898547740484692177664798616755193922608276433886354497755781 11/09/21 10:59:00, random seed: 3384743676930672059 11/09/21 10:59:21, ==== sieve params ==== 11/09/21 10:59:21, n = 82 digits, 273 bits 11/09/21 10:59:21, factor base: 49712 primes (max prime = 1290539) 11/09/21 10:59:21, single large prime cutoff: 122601205 (95 * pmax) 11/09/21 10:59:21, double large prime range from 1665490910521 to 362485408947117 11/09/21 10:59:21, DLP MFB = 1.80 11/09/21 10:59:21, using AVX2 enabled 32k sieve core 11/09/21 10:59:21, sieve interval: 7 blocks of size 32768 11/09/21 10:59:21, polynomial A has ~ 10 factors 11/09/21 10:59:21, using multiplier of 29 11/09/21 10:59:21, using multiplier of 29 11/09/21 10:59:21, using Q2(x) polynomials for kN mod 8 = 1 11/09/21 10:59:21, using SPV correction of 21 bits, starting at offset 34 11/09/21 10:59:21, trial factoring cutoff at 85 bits 11/09/21 10:59:21, ==== sieving started ( 4 threads) ==== 11/09/21 10:59:21, trial division touched 0 sieve locations out of 0 11/09/21 10:59:21, total reports = 0, total surviving reports = 0 11/09/21 10:59:21, total blocks sieved = 0, avg surviving reports per block = nan(ind) 11/09/21 10:59:21, dlpecm: 0 failures, 0 attempts, 0 outside range, 0 prp, 0 useful 11/09/21 10:59:21, 50299 relations found: 19524 full + 30775 from 411950 partial, using 0 polys (1 A polys) 11/09/21 10:59:21, on average, sieving found inf rels/poly and 21060.69 rels/sec 11/09/21 10:59:21, trial division touched 0 sieve locations out of 0 11/09/21 10:59:21, ==== post processing stage (msieve1.38) ==== 11/09/21 10:59:21, QS elapsed time = 20.4872 seconds. 11/09/21 10:59:21, begin singleton removal with 431473 relations 11/09/21 10:59:21, reduce to 94980 relations in 9 passes 11/09/21 10:59:22, recovered 94980 relations 11/09/21 10:59:22, recovered 64292 polynomials 11/09/21 10:59:22, attempting to build 50298 cycles 11/09/21 10:59:22, found 50298 cycles from 94980 relations in 4 passes 11/09/21 10:59:22, distribution of cycle lengths: 11/09/21 10:59:22, length 1 : 19524 11/09/21 10:59:22, length 2 : 14882 11/09/21 10:59:22, length 3 : 8517 11/09/21 10:59:22, length 4 : 4253 11/09/21 10:59:22, length 5 : 1830 11/09/21 10:59:22, length 6 : 768 11/09/21 10:59:22, length 7 : 322 11/09/21 10:59:22, length 9+: 202 11/09/21 10:59:22, largest cycle: 15 relations 11/09/21 10:59:22, matrix is 49712 x 50298 (9.2 MB) with weight 2012093 (40.00/col) 11/09/21 10:59:22, sparse part has weight 2012093 (40.00/col) 11/09/21 10:59:22, filtering completed in 4 passes 11/09/21 10:59:22, matrix is 39980 x 40044 (7.5 MB) with weight 1648559 (41.17/col) 11/09/21 10:59:22, sparse part has weight 1648559 (41.17/col) 11/09/21 10:59:22, saving the first 48 matrix rows for later 11/09/21 10:59:22, matrix is 39932 x 40044 (6.4 MB) with weight 1394921 (34.83/col) 11/09/21 10:59:22, sparse part has weight 1275284 (31.85/col) 11/09/21 10:59:22, matrix includes 64 packed rows 11/09/21 10:59:22, using block size 16017 for processor cache size 6144 kB 11/09/21 10:59:23, commencing Lanczos iteration 11/09/21 10:59:23, memory use: 5.5 MB 11/09/21 10:59:26, lanczos halted after 633 iterations (dim = 39928) 11/09/21 10:59:26, recovered 17 nontrivial dependencies 11/09/21 10:59:27, Lanczos elapsed time = 5.3170 seconds. 11/09/21 10:59:27, Sqrt elapsed time = 0.7500 seconds. 11/09/21 10:59:27, SIQS elapsed time = 26.5545 seconds. 11/09/21 10:59:27, 11/09/21 10:59:27, 11/09/21 10:59:27, final ECM pretested depth: 0.00 11/09/21 10:59:27, scheduler: switching to sieve method 11/09/21 10:59:27, starting SIQS on c81: 288456600260838603397898547740484692177664798616755193922608276433886354497755781 11/09/21 10:59:27, random seed: 3034725368991286559 11/09/21 10:59:47, ==== sieve params ==== 11/09/21 10:59:47, n = 82 digits, 273 bits 11/09/21 10:59:47, factor base: 49712 primes (max prime = 1290539) 11/09/21 10:59:47, single large prime cutoff: 122601205 (95 * pmax) 11/09/21 10:59:47, double large prime range from 1665490910521 to 362485408947117 11/09/21 10:59:47, DLP MFB = 1.80 11/09/21 10:59:47, using AVX2 enabled 32k sieve core 11/09/21 10:59:47, sieve interval: 7 blocks of size 32768 11/09/21 10:59:47, polynomial A has ~ 10 factors 11/09/21 10:59:47, using multiplier of 29 11/09/21 10:59:47, using multiplier of 29 11/09/21 10:59:47, using Q2(x) polynomials for kN mod 8 = 1 11/09/21 10:59:47, using SPV correction of 21 bits, starting at offset 34 11/09/21 10:59:47, trial factoring cutoff at 85 bits 11/09/21 10:59:47, ==== sieving started ( 4 threads) ==== 11/09/21 10:59:47, trial division touched 0 sieve locations out of 0 11/09/21 10:59:47, total reports = 0, total surviving reports = 0 11/09/21 10:59:47, total blocks sieved = 0, avg surviving reports per block = nan(ind) 11/09/21 10:59:47, dlpecm: 0 failures, 0 attempts, 0 outside range, 0 prp, 0 useful 11/09/21 10:59:47, 50299 relations found: 19524 full + 30775 from 411950 partial, using 0 polys (1 A polys) 11/09/21 10:59:47, on average, sieving found inf rels/poly and 21098.80 rels/sec 11/09/21 10:59:47, trial division touched 0 sieve locations out of 0 11/09/21 10:59:47, ==== post processing stage (msieve1.38) ==== 11/09/21 10:59:47, QS elapsed time = 20.4502 seconds. 11/09/21 10:59:47, begin singleton removal with 431473 relations 11/09/21 10:59:48, reduce to 94980 relations in 9 passes 11/09/21 10:59:48, recovered 94980 relations 11/09/21 10:59:48, recovered 64292 polynomials 11/09/21 10:59:48, attempting to build 50298 cycles 11/09/21 10:59:48, found 50298 cycles from 94980 relations in 4 passes 11/09/21 10:59:48, distribution of cycle lengths: 11/09/21 10:59:48, length 1 : 19524 11/09/21 10:59:48, length 2 : 14882 11/09/21 10:59:48, length 3 : 8517 11/09/21 10:59:48, length 4 : 4253 11/09/21 10:59:48, length 5 : 1830 11/09/21 10:59:48, length 6 : 768 11/09/21 10:59:48, length 7 : 322 11/09/21 10:59:48, length 9+: 202 11/09/21 10:59:48, largest cycle: 15 relations 11/09/21 10:59:49, matrix is 49712 x 50298 (9.2 MB) with weight 2012093 (40.00/col) 11/09/21 10:59:49, sparse part has weight 2012093 (40.00/col) 11/09/21 10:59:49, filtering completed in 4 passes 11/09/21 10:59:49, matrix is 39980 x 40044 (7.5 MB) with weight 1648559 (41.17/col) 11/09/21 10:59:49, sparse part has weight 1648559 (41.17/col) 11/09/21 10:59:49, saving the first 48 matrix rows for later 11/09/21 10:59:49, matrix is 39932 x 40044 (6.4 MB) with weight 1394921 (34.83/col) 11/09/21 10:59:49, sparse part has weight 1275284 (31.85/col) 11/09/21 10:59:49, matrix includes 64 packed rows 11/09/21 10:59:49, using block size 16017 for processor cache size 6144 kB 11/09/21 10:59:49, commencing Lanczos iteration 11/09/21 10:59:49, memory use: 5.5 MB 11/09/21 10:59:52, lanczos halted after 633 iterations (dim = 39928) 11/09/21 10:59:52, recovered 17 nontrivial dependencies 11/09/21 10:59:53, Lanczos elapsed time = 5.2990 seconds. 11/09/21 10:59:53, Sqrt elapsed time = 0.8030 seconds. 11/09/21 10:59:53, SIQS elapsed time = 26.5515 seconds. 11/09/21 10:59:53, 11/09/21 10:59:53, 11/09/21 10:59:53, final ECM pretested depth: 0.00 11/09/21 10:59:53, scheduler: switching to sieve method 11/09/21 10:59:53, starting SIQS on c81: 288456600260838603397898547740484692177664798616755193922608276433886354497755781 11/09/21 10:59:53, random seed: 8235070506173952707 11/09/21 11:00:14, ==== sieve params ==== 11/09/21 11:00:14, n = 82 digits, 273 bits 11/09/21 11:00:14, factor base: 49712 primes (max prime = 1290539) 11/09/21 11:00:14, single large prime cutoff: 122601205 (95 * pmax) 11/09/21 11:00:14, double large prime range from 1665490910521 to 362485408947117 11/09/21 11:00:14, DLP MFB = 1.80 11/09/21 11:00:14, using AVX2 enabled 32k sieve core 11/09/21 11:00:14, sieve interval: 7 blocks of size 32768 11/09/21 11:00:14, polynomial A has ~ 10 factors 11/09/21 11:00:14, using multiplier of 29 11/09/21 11:00:14, using multiplier of 29 11/09/21 11:00:14, using Q2(x) polynomials for kN mod 8 = 1 11/09/21 11:00:14, using SPV correction of 21 bits, starting at offset 34 11/09/21 11:00:14, trial factoring cutoff at 85 bits 11/09/21 11:00:14, ==== sieving started ( 4 threads) ==== 11/09/21 11:00:14, trial division touched 0 sieve locations out of 0 11/09/21 11:00:14, total reports = 0, total surviving reports = 0 11/09/21 11:00:14, total blocks sieved = 0, avg surviving reports per block = nan(ind) 11/09/21 11:00:14, dlpecm: 0 failures, 0 attempts, 0 outside range, 0 prp, 0 useful 11/09/21 11:00:14, 50299 relations found: 19524 full + 30775 from 411950 partial, using 0 polys (1 A polys) 11/09/21 11:00:14, on average, sieving found inf rels/poly and 21075.09 rels/sec 11/09/21 11:00:14, trial division touched 0 sieve locations out of 0 11/09/21 11:00:14, ==== post processing stage (msieve1.38) ==== 11/09/21 11:00:14, QS elapsed time = 20.4742 seconds. 11/09/21 11:00:14, begin singleton removal with 431473 relations 11/09/21 11:00:14, reduce to 94980 relations in 9 passes 11/09/21 11:00:15, recovered 94980 relations 11/09/21 11:00:15, recovered 64292 polynomials 11/09/21 11:00:15, attempting to build 50298 cycles 11/09/21 11:00:15, found 50298 cycles from 94980 relations in 4 passes 11/09/21 11:00:15, distribution of cycle lengths: 11/09/21 11:00:15, length 1 : 19524 11/09/21 11:00:15, length 2 : 14882 11/09/21 11:00:15, length 3 : 8517 11/09/21 11:00:15, length 4 : 4253 11/09/21 11:00:15, length 5 : 1830 11/09/21 11:00:15, length 6 : 768 11/09/21 11:00:15, length 7 : 322 11/09/21 11:00:15, length 9+: 202 11/09/21 11:00:15, largest cycle: 15 relations 11/09/21 11:00:15, matrix is 49712 x 50298 (9.2 MB) with weight 2012093 (40.00/col) 11/09/21 11:00:15, sparse part has weight 2012093 (40.00/col) 11/09/21 11:00:15, filtering completed in 4 passes 11/09/21 11:00:15, matrix is 39980 x 40044 (7.5 MB) with weight 1648559 (41.17/col) 11/09/21 11:00:15, sparse part has weight 1648559 (41.17/col) 11/09/21 11:00:15, saving the first 48 matrix rows for later 11/09/21 11:00:15, matrix is 39932 x 40044 (6.4 MB) with weight 1394921 (34.83/col) 11/09/21 11:00:15, sparse part has weight 1275284 (31.85/col) 11/09/21 11:00:15, matrix includes 64 packed rows 11/09/21 11:00:15, using block size 16017 for processor cache size 6144 kB 11/09/21 11:00:16, commencing Lanczos iteration 11/09/21 11:00:16, memory use: 5.5 MB 11/09/21 11:00:19, lanczos halted after 633 iterations (dim = 39928) 11/09/21 11:00:19, recovered 17 nontrivial dependencies 11/09/21 11:00:20, Lanczos elapsed time = 5.1600 seconds. 11/09/21 11:00:20, Sqrt elapsed time = 0.8010 seconds. 11/09/21 11:00:20, SIQS elapsed time = 26.4345 seconds. 11/09/21 11:00:20, Code:
11/09/21 11:13:26, 11/09/21 11:13:26, **************************** 11/09/21 11:13:26, Starting factorization of 288456600260838603397898547740484692177664798616755193922608276433886354497755781 11/09/21 11:13:26, using pretesting plan: noecm 11/09/21 11:13:26, no tune info: using qs/gnfs crossover of 95 digits 11/09/21 11:13:26, no tune info: using qs/snfs crossover of 75 digits 11/09/21 11:13:26, **************************** 11/09/21 11:13:26, starting SIQS on c81: 288456600260838603397898547740484692177664798616755193922608276433886354497755781 11/09/21 11:13:26, random seed: 8066514638846999927 11/09/21 11:13:47, ==== sieve params ==== 11/09/21 11:13:47, n = 82 digits, 273 bits 11/09/21 11:13:47, factor base: 49712 primes (max prime = 1290539) 11/09/21 11:13:47, single large prime cutoff: 122601205 (95 * pmax) 11/09/21 11:13:47, double large prime range from 1665490910521 to 362485408947117 11/09/21 11:13:47, DLP MFB = 1.80 11/09/21 11:13:47, using AVX2 enabled 32k sieve core 11/09/21 11:13:47, sieve interval: 7 blocks of size 32768 11/09/21 11:13:47, polynomial A has ~ 10 factors 11/09/21 11:13:47, using multiplier of 29 11/09/21 11:13:47, using multiplier of 29 11/09/21 11:13:47, using Q2(x) polynomials for kN mod 8 = 1 11/09/21 11:13:47, using SPV correction of 21 bits, starting at offset 34 11/09/21 11:13:47, trial factoring cutoff at 85 bits 11/09/21 11:13:47, ==== sieving started ( 4 threads) ==== 11/09/21 11:13:47, trial division touched 0 sieve locations out of 0 11/09/21 11:13:47, total reports = 0, total surviving reports = 0 11/09/21 11:13:47, total blocks sieved = 0, avg surviving reports per block = nan(ind) 11/09/21 11:13:47, dlpecm: 0 failures, 0 attempts, 0 outside range, 0 prp, 0 useful 11/09/21 11:13:47, 50299 relations found: 19524 full + 30775 from 411950 partial, using 0 polys (1 A polys) 11/09/21 11:13:47, on average, sieving found inf rels/poly and 20714.87 rels/sec 11/09/21 11:13:47, trial division touched 0 sieve locations out of 0 11/09/21 11:13:47, ==== post processing stage (msieve1.38) ==== 11/09/21 11:13:47, QS elapsed time = 20.8292 seconds. 11/09/21 11:13:47, begin singleton removal with 431473 relations 11/09/21 11:13:47, reduce to 94980 relations in 9 passes 11/09/21 11:13:48, recovered 94980 relations 11/09/21 11:13:48, recovered 64292 polynomials 11/09/21 11:13:48, attempting to build 50298 cycles 11/09/21 11:13:48, found 50298 cycles from 94980 relations in 4 passes 11/09/21 11:13:48, distribution of cycle lengths: 11/09/21 11:13:48, length 1 : 19524 11/09/21 11:13:48, length 2 : 14882 11/09/21 11:13:48, length 3 : 8517 11/09/21 11:13:48, length 4 : 4253 11/09/21 11:13:48, length 5 : 1830 11/09/21 11:13:48, length 6 : 768 11/09/21 11:13:48, length 7 : 322 11/09/21 11:13:48, length 9+: 202 11/09/21 11:13:48, largest cycle: 15 relations 11/09/21 11:13:48, matrix is 49712 x 50298 (9.2 MB) with weight 2012093 (40.00/col) 11/09/21 11:13:48, sparse part has weight 2012093 (40.00/col) 11/09/21 11:13:49, filtering completed in 4 passes 11/09/21 11:13:49, matrix is 39980 x 40044 (7.5 MB) with weight 1648559 (41.17/col) 11/09/21 11:13:49, sparse part has weight 1648559 (41.17/col) 11/09/21 11:13:49, saving the first 48 matrix rows for later 11/09/21 11:13:49, matrix is 39932 x 40044 (6.4 MB) with weight 1394921 (34.83/col) 11/09/21 11:13:49, sparse part has weight 1275284 (31.85/col) 11/09/21 11:13:49, matrix includes 64 packed rows 11/09/21 11:13:49, using block size 16017 for processor cache size 6144 kB 11/09/21 11:13:49, commencing Lanczos iteration 11/09/21 11:13:49, memory use: 5.5 MB 11/09/21 11:13:52, lanczos halted after 633 iterations (dim = 39928) 11/09/21 11:13:52, recovered 17 nontrivial dependencies 11/09/21 11:13:52, prp18 = 988178592293402021 11/09/21 11:13:53, prp19 = 1346028033112095481 11/09/21 11:13:53, prp45 = 216865733067462219031336345962688918881760681 11/09/21 11:13:53, Lanczos elapsed time = 5.6540 seconds. 11/09/21 11:13:53, Sqrt elapsed time = 0.3800 seconds. 11/09/21 11:13:53, SIQS elapsed time = 26.8635 seconds. 11/09/21 11:13:53, 11/09/21 11:13:53, 11/09/21 11:13:53, Total factoring time = 27.0275 seconds 
20211122, 15:19  #294 
Jun 2021
2^{4} Posts 
bsquared, is maximal digits count in version 2.07  c1020?

20211122, 16:11  #295 
"Ben"
Feb 2007
3×1,193 Posts 

20211124, 18:22  #296 
"Daniel Jackson"
May 2011
14285714285714285714
1010100101_{2} Posts 
Strange error (0xc0000005) when using Studio Kamada poly
When I try to factor 78888_142 (from Studio Kamada's nearrepdigit tables), I get this crash:
Code:
Faulting application name: yafu.exe, version: 0.0.0.0, time stamp: 0x611c3335 Faulting module name: yafu.exe, version: 0.0.0.0, time stamp: 0x611c3335 Exception code: 0xc0000005 Fault offset: 0x000000000015e3d9 Faulting process id: 0x1384 Faulting application start time: 0x01d7e15f4ab93ee3 Faulting application path: C:\Numbers\yafumaster\yafu.exe Faulting module path: C:\Numbers\yafumaster\yafu.exe Report Id: ceacc9fa05964f6da151a56041b94d89 Faulting package full name: Faulting packagerelative application ID: Why is it crashing? Is there something wrong with the poly? The only thing that was output to factor.log was this: Code:
11/24/21 13:15:42, nfs: commencing nfs on c137: 39628160596972006667354298974490180923204420136195848397615791252691924205059098424741546252872762571726970680519332067911281143827227471 Code:
C:\Numbers\yafumaster>yafu "snfs(71*10^1428,39628160596972006667354298974490180923204420136195848397615791252691924205059098424741546252872762571726970680519332067911281143827227471)" Applying tune_info entry for WIN64  Intel(R) Core(TM) i59300H CPU @ 2.40GHz YAFU Version 2.06 Built with Microsoft Visual Studio 1922 Using GMPECM 7.0.4, Powered by MPIR 3.0.0 Detected Intel(R) Core(TM) i59300H CPU @ 2.40GHz Detected L1 = 32768 bytes, L2 = 8388608 bytes, CL = 64 bytes Using 1 random witness for RabinMiller 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 ======= =============================================================== >> nfs: checking for job file  job file found, testing for matching input input from file = 39628160596972006667354298974490180923204420136195848397615791252691924205059098424741546252872762571726970680519332067911281143827227471 input to yafu = 709999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999992 input matches with multiple of 17916552 nfs: number in job file matches input nfs: checking for data file nfs: no data file found nfs: commencing nfs on c137: 39628160596972006667354298974490180923204420136195848397615791252691924205059098424741546252872762571726970680519332067911281143827227471 nfs: resumesieve; last_spq = 0, nfs_phases = 0 nfs: found m: 100000000000000000000000000000000000 nfs: found c[4]: 1775 nfs: found c[0]: 2 nfs: found skew: 0.180000 nfs: found type: snfs nfs: initializing snfs poly nfs: parsed lpbr = 26, lpba = 26 nfs: detected snfs job but no snfs difficulty nfs: using m and poly coefficients to compute difficulty nfs: snfs difficulty: 38.249198 nfs: checking degree 4 poly nfs: analyzing poly: 
20211124, 20:21  #297 
May 2009
Russia, Moscow
2,683 Posts 
The same with Linux binary (seg fault), but I got it worked when I didn't set initial poly and let YAFU choose it for me.
I think m param is a problem in autogenerated poly at Kamada's site. It works when I replace Code:
m: 100000000000000000000000000000000000 Code:
Y1: 1 Y0: 100000000000000000000000000000000000 Last fiddled with by unconnected on 20211124 at 20:28 
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