20210916, 17:10  #243 
"Ben"
Feb 2007
DFA_{16} Posts 

20210916, 17:20  #244  
"Ben"
Feb 2007
2·1,789 Posts 
Quote:
Very roughly, when the number of fulls from partials is equal to the number of fulls then you are about 2/3 to 3/4 done. 

20210916, 17:27  #245 
"James Heinrich"
May 2004
exNorthern Ontario
2^{4}×3×73 Posts 

20210916, 22:18  #246 
"Ed Hall"
Dec 2009
Adirondack Mtns
2·2,011 Posts 
Probably due to my CPUs missing (almost) all the valuable flags, I got an error after "make clean NFS=clean USE_SSE41=clean":
Code:
$ make NFS=1 USE_SSE41=1 . . . factor/avxecm/avx_ecm.h:836:34: error: unknown type name \u2018__m512i\u2019 836  void vecmul52_1(vec_bignum_t* a, __m512i b, vec_bignum_t* c, vec_bignum_t* n, vec_bignum_t* s, vec_monty_t* mdata);  ^~~~~~~ . . . make: *** [Makefile:393: factor/avxecm/avxecm.o] Error 1 On a different subject, I'm trying to figure out how to send options in the following script line: Code:
echo "factor(${composite})"  ./yafu Sorry if I'm a pain. Thanks for all the help. 
20210916, 22:33  #247 
"James Heinrich"
May 2004
exNorthern Ontario
2^{4}·3·73 Posts 
Just confirming that internal ECM now uses the appropriate number of threads in v2.07 (Win10), thanks.
I did notice something when checking that  I'm specifying p on the commandline but yafux64.exe is running in "normal" priority, not idle (p is also set in yafu.ini). 
20210917, 12:30  #248 
"Ed Hall"
Dec 2009
Adirondack Mtns
FB6_{16} Posts 
Revision 2.07 appears to be stuck in a loop:
Code:
. . . starting SIQS on c88: 1072980570200329351188730228988024470047893288038112575153917530948170108341537641314357 70449 relations found: 20728 full + 49721 from 872363 partial threw away 0 relations with large primes too small ==== sieve params ==== n = 88 digits, 290 bits factor base: 66560 primes (max prime = 1773997) single large prime cutoff: 195139670 (110 * pmax) double large prime range from 3147065356009 to 2173398172298490 DLP MFB = 1.85 using SSE41 enabled 32k sieve core sieve interval: 12 blocks of size 32768 polynomial A has ~ 11 factors using multiplier of 1 (kn mod 8 == 5) using SPV correction of 20 bits, starting at offset 35 trial factoring cutoff at 93 bits ==== sieving in progress ( 24 threads): 66624 relations needed ==== ==== Press ctrlc to abort and save state ==== 70449 rels found: 20728 full + 49721 from 872363 partial, (1592093.11 rels/sec) sieving required 0 total polynomials (4294967295 'A' polynomials) trial division touched 0 sieve locations out of 0 dlpecm: 0 failures, 0 attempts, 0 outside range, 0 prp, 0 useful total reports = 0, total surviving reports = 0 total blocks sieved = 0, avg surviving reports per block = nan Elapsed time: 0.5610 sec QS elapsed time = 0.5611 seconds. ==== post processing stage (msieve1.38) ==== read 893090 relations begin singleton removal with 893090 relations reduce to 162769 relations in 9 passes attempting to read and process 162769 relations recovered 162769 relations recovered 129773 polynomials attempting to build 70448 cycles found 70448 cycles from 162769 relations in 5 passes distribution of cycle lengths: length 1 : 20728 length 2 : 15380 length 3 : 12812 length 4 : 8869 length 5 : 5644 length 6 : 3303 length 7 : 1814 length 9+: 1898 largest cycle: 18 relations matrix is 66560 x 70448 (16.6 MB) with weight 3794245 (53.86/col) sparse part has weight 3794245 (53.86/col) filtering completed in 4 passes matrix is 59263 x 59327 (13.3 MB) with weight 3021409 (50.93/col) sparse part has weight 3021409 (50.93/col) saving the first 48 matrix rows for later matrix is 59215 x 59327 (11.6 MB) with weight 2672491 (45.05/col) sparse part has weight 2454774 (41.38/col) matrix includes 64 packed rows using block size 23730 for processor cache size 15360 kB commencing Lanczos iteration memory use: 9.5 MB lanczos halted after 938 iterations (dim = 59210) recovered 14 nontrivial dependencies Lanczos elapsed time = 14.3076 seconds. Sqrt elapsed time = 1.3032 seconds. SIQS elapsed time = 16.1745 seconds. pretesting / qs ratio was 0.90 fac: check tune params contained invalid parameter(s), ignoring tune info. fac: setting target pretesting digits to 27.08 t15: 67.74 t20: 29.98 t25: 4.05 t30: 0.42 t35: 0.03 fac: estimated sum of completed work is t27.08 starting SIQS on c88: 1072980570200329351188730228988024470047893288038112575153917530948170108341537641314357 70449 relations found: 20728 full + 49721 from 872363 partial threw away 0 relations with large primes too small ==== sieve params ==== n = 88 digits, 290 bits factor base: 66560 primes (max prime = 1773997) single large prime cutoff: 195139670 (110 * pmax) double large prime range from 3147065356009 to 2173398172298490 DLP MFB = 1.85 using SSE41 enabled 32k sieve core sieve interval: 12 blocks of size 32768 polynomial A has ~ 11 factors using multiplier of 1 (kn mod 8 == 5) using SPV correction of 20 bits, starting at offset 35 trial factoring cutoff at 93 bits ==== sieving in progress ( 24 threads): 66624 relations needed ==== ==== Press ctrlc to abort and save state ==== 70449 rels found: 20728 full + 49721 from 872363 partial, (1348970.02 rels/sec) sieving required 0 total polynomials (4294967295 'A' polynomials) trial division touched 0 sieve locations out of 0 dlpecm: 0 failures, 0 attempts, 0 outside range, 0 prp, 0 useful total reports = 0, total surviving reports = 0 total blocks sieved = 0, avg surviving reports per block = nan Elapsed time: 0.6621 sec QS elapsed time = 0.6622 seconds. ==== post processing stage (msieve1.38) ==== read 893090 relations begin singleton removal with 893090 relations reduce to 162769 relations in 9 passes attempting to read and process 162769 relations recovered 162769 relations recovered 129773 polynomials attempting to build 70448 cycles found 70448 cycles from 162769 relations in 5 passes distribution of cycle lengths: length 1 : 20728 length 2 : 15380 length 3 : 12812 length 4 : 8869 length 5 : 5644 length 6 : 3303 length 7 : 1814 length 9+: 1898 largest cycle: 18 relations matrix is 66560 x 70448 (16.6 MB) with weight 3794245 (53.86/col) sparse part has weight 3794245 (53.86/col) filtering completed in 4 passes matrix is 59263 x 59327 (13.3 MB) with weight 3021409 (50.93/col) sparse part has weight 3021409 (50.93/col) saving the first 48 matrix rows for later matrix is 59215 x 59327 (11.6 MB) with weight 2672491 (45.05/col) sparse part has weight 2454774 (41.38/col) matrix includes 64 packed rows using block size 23730 for processor cache size 15360 kB commencing Lanczos iteration memory use: 9.5 MB lanczos halted after 938 iterations (dim = 59210) recovered 14 nontrivial dependencies Lanczos elapsed time = 13.7053 seconds. Sqrt elapsed time = 1.0454 seconds. SIQS elapsed time = 15.4167 seconds. pretesting / qs ratio was 0.94 fac: check tune params contained invalid parameter(s), ignoring tune info. fac: setting target pretesting digits to 27.08 t15: 67.74 t20: 29.98 t25: 4.05 t30: 0.42 t35: 0.03 fac: estimated sum of completed work is t27.08 starting SIQS on c88: 1072980570200329351188730228988024470047893288038112575153917530948170108341537641314357 70449 relations found: 20728 full + 49721 from 872363 partial threw away 0 relations with large primes too small ==== sieve params ==== n = 88 digits, 290 bits factor base: 66560 primes (max prime = 1773997) single large prime cutoff: 195139670 (110 * pmax) double large prime range from 3147065356009 to 2173398172298490 DLP MFB = 1.85 using SSE41 enabled 32k sieve core sieve interval: 12 blocks of size 32768 polynomial A has ~ 11 factors using multiplier of 1 (kn mod 8 == 5) using SPV correction of 20 bits, starting at offset 35 trial factoring cutoff at 93 bits ==== sieving in progress ( 24 threads): 66624 relations needed ==== ==== Press ctrlc to abort and save state ==== 70449 rels found: 20728 full + 49721 from 872363 partial, (1616530.37 rels/sec) sieving required 0 total polynomials (4294967295 'A' polynomials) trial division touched 0 sieve locations out of 0 dlpecm: 0 failures, 0 attempts, 0 outside range, 0 prp, 0 useful total reports = 0, total surviving reports = 0 total blocks sieved = 0, avg surviving reports per block = nan Elapsed time: 0.5525 sec QS elapsed time = 0.5526 seconds. ==== post processing stage (msieve1.38) ==== read 893090 relations begin singleton removal with 893090 relations reduce to 162769 relations in 9 passes attempting to read and process 162769 relations recovered 162769 relations recovered 129773 polynomials attempting to build 70448 cycles found 70448 cycles from 162769 relations in 5 passes distribution of cycle lengths: length 1 : 20728 length 2 : 15380 length 3 : 12812 length 4 : 8869 length 5 : 5644 length 6 : 3303 length 7 : 1814 length 9+: 1898 largest cycle: 18 relations matrix is 66560 x 70448 (16.6 MB) with weight 3794245 (53.86/col) sparse part has weight 3794245 (53.86/col) filtering completed in 4 passes matrix is 59263 x 59327 (13.3 MB) with weight 3021409 (50.93/col) sparse part has weight 3021409 (50.93/col) saving the first 48 matrix rows for later matrix is 59215 x 59327 (11.6 MB) with weight 2672491 (45.05/col) sparse part has weight 2454774 (41.38/col) matrix includes 64 packed rows using block size 23730 for processor cache size 15360 kB commencing Lanczos iteration memory use: 9.5 MB lanczos halted after 938 iterations (dim = 59210) recovered 14 nontrivial dependencies Lanczos elapsed time = 13.9592 seconds. Sqrt elapsed time = 1.0246 seconds. SIQS elapsed time = 15.5372 seconds. pretesting / qs ratio was 0.93 fac: check tune params contained invalid parameter(s), ignoring tune info. fac: setting target pretesting digits to 27.08 t15: 67.74 t20: 29.98 t25: 4.05 t30: 0.42 t35: 0.03 fac: estimated sum of completed work is t27.08 . . . Last fiddled with by EdH on 20210917 at 12:36 
20210917, 15:50  #249  
Sep 2009
2·3^{2}·11^{2} Posts 
Quote:
Code:
$cmd="\"$YAFU\" 'factor($_[0])' p ecm_path /usr/bin/ecm logfile $LOGFILE threads $NUM_CPUS"; ... $res=system($cmd); Or a trivial example from the command line: Code:
chris@rigel:~/bin$ yafu 'factor(2^128+1)' threads 2 fac: factoring 340282366920938463463374607431768211457 fac: using pretesting plan: normal fac: using tune info for qs/gnfs crossover div: primes less than 10000 rho: x^2 + 3, starting 1000 iterations on C39 rho: x^2 + 2, starting 1000 iterations on C39 rho: x^2 + 1, starting 1000 iterations on C39 pm1: starting B1 = 150K, B2 = gmpecm default on C39 ecm: 30/30 curves on C39, B1=2K, B2=gmpecm default starting SIQS on c39: 340282366920938463463374607431768211457 ==== sieving in progress ( 2 threads): 656 relations needed ==== ==== Press ctrlc to abort and save state ==== 539 rels found: 297 full + 242 from 2231 partial, (34049.89 rels/sec) SIQS elapsed time = 0.1017 seconds. Total factoring time = 0.4423 seconds ***factors found*** P22 = 5704689200685129054721 P17 = 59649589127497217 ans = 1 

20210917, 18:48  #250  
"Ben"
Feb 2007
3578_{10} Posts 
Quote:
You got me with this one, no idea what's going on. Maybe some context? Is this a resume or did it run through from scratch? Running on cmd line or in interpreter? etc. 

20210917, 21:01  #251  
"Ed Hall"
Dec 2009
Adirondack Mtns
2·2,011 Posts 
Quote:
Quote:
Note: I found that tiny, unobtrusive, miniature, lower case, "v" you had hidden in the yafu.ini file. So the verbosity is back to my liking. As for the looping machines, they were running a bash script that feeds YAFU a composite. Both had already completed a good number of composites via the script. The one machine I noted had been looping for almost 7 hours overnight. I just fed that composite to the new version as a test and it flew through it. (Of course, I expected it would.) Thanks for all! 

20210918, 00:08  #252 
"Ed Hall"
Dec 2009
Adirondack Mtns
2·2,011 Posts 
Still Have Looping
I seemed to still have looping on one of the same machines as before, but I did break out of it without CTRLc:
Code:
. . . starting SIQS on c89: 13552335418571691348826103661651040263240362626711372932187961446062171132450991836093689 ==== sieving in progress ( 24 threads): 68592 relations needed ==== ==== Press ctrlc to abort and save state ==== 71951 rels found: 21038 full + 50913 from 925085 partial, (1651661.66 rels/sec) SIQS elapsed time = 17.1809 seconds. starting SIQS on c89: 13552335418571691348826103661651040263240362626711372932187961446062171132450991836093689 ==== sieving in progress ( 24 threads): 68592 relations needed ==== ==== Press ctrlc to abort and save state ==== 71951 rels found: 21038 full + 50913 from 925085 partial, (1610592.10 rels/sec) SIQS elapsed time = 16.3661 seconds. starting SIQS on c89: 13552335418571691348826103661651040263240362626711372932187961446062171132450991836093689 ==== sieving in progress ( 24 threads): 68592 relations needed ==== ==== Press ctrlc to abort and save state ==== 71951 rels found: 21038 full + 50913 from 925085 partial, (1650011.16 rels/sec) SIQS elapsed time = 18.6747 seconds. . . . 
20210918, 18:39  #253 
"Ed Hall"
Dec 2009
Adirondack Mtns
2·2,011 Posts 
An exciting day! I just updated all my machines, Core2 , i3, i5, i7, AMD (without SSE4_1) and Xeons. (I had to make a script.)
All are now running YAFU 2.07!! A couple questions:  I didn't, but should I rebuild the Core2 machines with the Core2 line in the Makefile uncommented?  In ytools, should the "CC = gcc7.3.0" be changed to match the "CC = gcc" in the ysieve and YAFU Makefiles? Thanks for all! 
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