20180714, 17:48  #452 
Jun 2012
2^{5}·3·31 Posts 
I'm getting a repeatable crash in Win 10 with an older version of Yafu, immediately after Yafu finishes the x^2+1 step. Apologies if this issue has been put to bed. If so I will upgrade Yafu, but if not at least the issue has been identified.
Can someone with the latest Yafu try running this factor command? Code:
yafu "factor(3314514401115331138050274482333751539515878179862796262008408412975806037560749219681220581227413060207370252117371524847562070565242284821231627393410026284359777649866800126829859329720807915332429357543540159617375384722721915579212589246884325216900112116212203418982984198221046623379680617016015699725380875449909211299841)" v Thanks you in advance. Code:
C:\Temp>yafu "factor(3314514401115331138050274482333751539515878179862796262008408412975806037560749219681220581227413060207370252117371524847562070565242284821231627393410026284359777649866800126829859329720807915332429357543540159617375384722721915579212589246884325216900112116212203418982984198221046623379680617016015699725380875449909211299841)" v 07/14/18 13:04:15 v1.34.5 @ NATINBNDE94677, System/Build Info: Using GMPECM 6.3, Powered by GMP 5.1.1 detected Intel(R) Core(TM) i76600U CPU @ 2.60GHz detected L1 = 32768 bytes, L2 = 4194304 bytes, CL = 64 bytes measured cpu frequency ~= 3050.105090 using 100 random witnesses for RabinMiller PRP checks =============================================================== ======= Welcome to YAFU (Yet Another Factoring Utility) ======= ======= bbuhrow@gmail.com ======= ======= Type help at any time, or quit to quit ======= =============================================================== cached 78498 primes. pmax = 999983 >> fac: factoring 3314514401115331138050274482333751539515878179862796262008408412975806037560749219681220581227413060207370252117371524847562070565242284821231627393410026284359777649866800126829859329720807915332429357543540159617375384722721915579212589246884325216900112116212203418982984198221046623379680617016015699725380875449909211299841 fac: using pretesting plan: normal fac: using tune info for qs/gnfs crossover div: primes less than 10000 fmt: 1000000 iterations rho: x^2 + 3, starting 100000 iterations on C328 rho: x^2 + 2, starting 100000 iterations on C328 rho: x^2 + 1, starting 100000 iterations on C328 pm1: starting B1 = 150K, B2 = gmpecm default on C328 Assertion failed: (__builtin_constant_p (1UL) && (1UL) == 0 ? ((F[deg])>_mp_size < 0 ? 1 : (F[deg])>_mp_size > 0) : __gmpz_cmp_ui (F[deg],1UL)) == 0, file pm1fs2.c, line 1843 This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information. 
20180715, 06:55  #453 
I moo ablest echo power!
May 2013
6CD_{16} Posts 
Can confirm it works fine on a more recent version of YAFU. Can't give you the exact revision, but it's recent.

20180715, 11:13  #454 
Jun 2012
2^{5}·3·31 Posts 
Thanks Wombatman. The solution is obvious: I need a faster computer.

20180715, 13:50  #455  
"Curtis"
Feb 2005
Riverside, CA
2^{2}×7×13^{2} Posts 
Quote:


20180716, 01:32  #456  
"Mike"
Aug 2002
1F65_{16} Posts 
Quote:


20180716, 01:45  #457 
"Curtis"
Feb 2005
Riverside, CA
2^{2}·7·13^{2} Posts 
I have a killawatt, so I'll let you know in about ten days once it arrives.

20180716, 02:11  #458 
"Mike"
Aug 2002
3^{2}·19·47 Posts 
Thanks!
We don’t know much about enterpriselevel equipment like that but we are very tempted to get one. Especially if we could get one to run Linux. (Do they have weird proprietary bits of hardware that aren’t supported under Linux?) Have you bought from this seller before? 
20180718, 18:32  #459  
"Nuri, the dragon :P"
Jul 2016
Good old Germany
5×7×23 Posts 
Quote:
Used yafu 1.34 and got the same result as you got. Code:
07/18/18 20:27:19 v1.34.5 @ SYDEKUMPC, System/Build Info: Using GMPECM 6.3, Powered by GMP 5.1.1 cached 78498 primes. pmax = 999983 detected Intel(R) Xeon(R) CPU E31231 v3 @ 3.40GHz detected L1 = 32768 bytes, L2 = 8388608 bytes, CL = 64 bytes measured cpu frequency ~= 3396.280260 using 20 random witnesses for RabinMiller PRP checks Updating yafu *might* help, but upgrading your computer might not help. 

20180718, 20:48  #460 
"Victor de Hollander"
Aug 2011
the Netherlands
2^{3}·3·7^{2} Posts 
The C328 works fine in the r373 (WIP branch)
Code:
C:\YAFUr373wipwin64core2>yafur373win64core2.exe "factor(33145144011153311 38050274482333751539515878179862796262008408412975806037560749219681220581227413 06020737025211737152484756207056524228482123162739341002628435977764986680012682 98593297208079153324293575435401596173753847227219155792125892468843252169001121 16212203418982984198221046623379680617016015699725380875449909211299841)" v 07/18/18 22:40:43 v1.35beta @ PCVICTOR, System/Build Info: Using GMPECM 7.0.4, Powered by GMP 6.1.2 detected Intel(R) Core(TM) i52500K CPU @ 3.30GHz detected L1 = 32768 bytes, L2 = 6291456 bytes, CL = 64 bytes measured cpu frequency ~= 3556.133860 using 1 random witnesses for RabinMiller PRP checks =============================================================== ======= Welcome to YAFU (Yet Another Factoring Utility) ======= ======= bbuhrow@gmail.com ======= ======= Type help at any time, or quit to quit ======= =============================================================== cached 78498 primes. pmax = 999983 >> fac: factoring 33145144011153311380502744823337515395158781798627962620084084 12975806037560749219681220581227413060207370252117371524847562070565242284821231 62739341002628435977764986680012682985932972080791533242935754354015961737538472 27219155792125892468843252169001121162122034189829841982210466233796806170160156 99725380875449909211299841 fac: using pretesting plan: normal fac: no tune info: using qs/gnfs crossover of 95 digits div: primes less than 10000 fmt: 1000000 iterations rho: x^2 + 3, starting 1000 iterations on C328 rho: x^2 + 2, starting 1000 iterations on C328 rho: x^2 + 1, starting 1000 iterations on C328 nfs: searching for brent special forms... nfs: searching for homogeneous cunningham special forms... nfs: searching for XYYXF special forms... nfs: couldn't find special form pm1: starting B1 = 150K, B2 = gmpecm default on C328 fac: setting target pretesting digits to 100.92 fac: estimated sum of completed work is t0.00 fac: work done at B1=2000: 0 curves, max work = 30 curves fac: 30 more curves at B1=2000 needed to get to t100.92 ecm: 30/30 curves on C328, B1=2K, B2=gmpecm default fac: setting target pretesting digits to 100.92 t15: 1.00 t20: 0.04 fac: estimated sum of completed work is t15.18 fac: work done at B1=11000: 0 curves, max work = 74 curves fac: 74 more curves at B1=11000 needed to get to t100.92 ecm: 74/74 curves on C328, B1=11K, B2=gmpecm default fac: setting target pretesting digits to 100.92 t15: 7.17 t20: 1.04 t25: 0.05 fac: estimated sum of completed work is t20.24 fac: work done at B1=50000: 0 curves, max work = 214 curves fac: 214 more curves at B1=50000 needed to get to t100.92 ecm: 214/214 curves on C328, B1=50K, B2=gmpecm default, ETA: 0 sec pm1: starting B1 = 3750K, B2 = gmpecm default on C328 fac: setting target pretesting digits to 100.92 t15: 37.74 t20: 11.23 t25: 1.05 t30: 0.07 fac: estimated sum of completed work is t25.33 fac: work done at B1=250000: 0 curves, max work = 430 curves fac: 430 more curves at B1=250000 needed to get to t100.92 ecm: 68/430 curves on C328, B1=250K, B2=gmpecm default, ETA: 4.4 min Code:
C:\YAFUr375wipwin64core2>yafur375wipwin64core2.exe "factor(3314514401115 33113805027448233375153951587817986279626200840841297580603756074921968122058122 74130602073702521173715248475620705652422848212316273934100262843597776498668001 26829859329720807915332429357543540159617375384722721915579212589246884325216900 112116212203418982984198221046623379680617016015699725380875449909211299841)" v 07/18/18 22:45:25 v1.35beta @ PCVICTOR, System/Build Info: Using GMPECM 7.0.4, Powered by GMP 6.1.2 detected Intel(R) Core(TM) i52500K CPU @ 3.30GHz detected L1 = 32768 bytes, L2 = 6291456 bytes, CL = 64 bytes measured cpu frequency ~= 3146.783720 using 1 random witnesses for RabinMiller PRP checks =============================================================== ======= Welcome to YAFU (Yet Another Factoring Utility) ======= ======= bbuhrow@gmail.com ======= ======= Type help at any time, or quit to quit ======= =============================================================== cached 78498 primes. pmax = 999983 >> fac: factoring 33145144011153311380502744823337515395158781798627962620084084 12975806037560749219681220581227413060207370252117371524847562070565242284821231 62739341002628435977764986680012682985932972080791533242935754354015961737538472 27219155792125892468843252169001121162122034189829841982210466233796806170160156 99725380875449909211299841 fac: using pretesting plan: normal fac: no tune info: using qs/gnfs crossover of 95 digits div: primes less than 10000 fmt: 1000000 iterations rho: x^2 + 3, starting 1000 iterations on C328 rho: x^2 + 2, starting 1000 iterations on C328 rho: x^2 + 1, starting 1000 iterations on C328 nfs: searching for brent special forms... nfs: searching for homogeneous cunningham special forms... nfs: searching for XYYXF special forms... nfs: couldn't find special form pm1: starting B1 = 150K, B2 = gmpecm default on C328 fac: setting target pretesting digits to 100.92 fac: estimated sum of completed work is t0.00 fac: work done at B1=2000: 0 curves, max work = 30 curves fac: 30 more curves at B1=2000 needed to get to t100.92 ecm: 30/30 curves on C328, B1=2K, B2=gmpecm default fac: setting target pretesting digits to 100.92 t15: 1.00 t20: 0.04 fac: estimated sum of completed work is t15.18 fac: work done at B1=11000: 0 curves, max work = 74 curves fac: 74 more curves at B1=11000 needed to get to t100.92 ecm: 74/74 curves on C328, B1=11K, B2=gmpecm default fac: setting target pretesting digits to 100.92 t15: 7.17 t20: 1.04 t25: 0.05 fac: estimated sum of completed work is t20.24 fac: work done at B1=50000: 0 curves, max work = 214 curves fac: 214 more curves at B1=50000 needed to get to t100.92 ecm: 214/214 curves on C328, B1=50K, B2=gmpecm default, ETA: 0 sec pm1: starting B1 = 3750K, B2 = gmpecm default on C328 fac: setting target pretesting digits to 100.92 t15: 37.74 t20: 11.23 t25: 1.05 t30: 0.07 fac: estimated sum of completed work is t25.33 fac: work done at B1=250000: 0 curves, max work = 430 curves fac: 430 more curves at B1=250000 needed to get to t100.92 ecm: 56/430 curves on C328, B1=250K, B2=gmpecm default, ETA: 4.2 min 
20180718, 21:50  #461 
Jun 2012
BA0_{16} Posts 
Thanks to all for confirming the bug is gone in later versions of Yafu.
Anybody got an executable of the latest Yafu (Win) on a nonbleeding edge cpu? The steps laid out by B^2 scare me a bit, though I will attempt it if necessary. My new computer comment was purely tongue in cheek w/r/t SWMBO, who unfortunately does not read this forum nor does she care about recreational mathematics. I must resort to plan B  a full court charm offensive. Wish me luck! 
20180718, 22:08  #462 
"Ben"
Feb 2007
D4C_{16} Posts 
Just thought I'd mention that the exception you saw was generated by the gmpecm library.
What that means is that something in the prepackaged gmpecm inside the yafu executable is failing on that cpu. Would be interested to see if similarera standalone gmpecm programs fail in the same way with that number (Using GMPECM 6.3, Powered by GMP 5.1.1). Newer yafu's will have newer gmpecm's, so that is the fix for now. 
Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Running YAFU via Aliqueit doesn't find yafu.ini  EdH  YAFU  8  20180314 17:22 
Where to report bugs  Matt  Software  1  20070220 19:13 
Possible Prime95 bugs  JuanTutors  Software  9  20060924 21:22 
RMA 1.7 beta bugs  TTn  15k Search  2  20041124 22:11 
RMA 1.6 fixes LLR bugs!  TTn  15k Search  16  20040616 01:22 