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Old 2016-10-12, 15:59   #349
EdH
 
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"Ed Hall"
Dec 2009
Adirondack Mtns

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How odd! I let about a dozen machines work on the c187 overnight and they returned nothing. This morning I set up a machine to run a distributed ECM effort and it immediately gave me this:
Code:
-> ___________________________________________________________________
-> | Running ecm.py, a Python driver for distributing GMP-ECM work   |
-> | on a single machine.  It is Copyright, 2012, David Cleaver and  |
-> | is a conversion of factmsieve.py that is Copyright, 2010, Brian |
-> | Gladman.   Version 0.10 (Python 2.6 or later) 30th Sep 2012.    |
-> |_________________________________________________________________|
 
-> Number(s) to factor:
-> 2097073091591237404218687836513685895877817960290253421046297596274623117183515885512940927331281174454391017370699311839113500789090430626739805618613433715612809988590674625990004910081 (187 digits)
->=============================================================================
-> Working on number: 209707309159123740...674625990004910081 (187 digits)
-> Currently working on: job6427.txt
-> Starting 4 instances of GMP-ECM...
-> ./ecm -c 8 2000 < job6427.txt > job6427_t00.txt
-> ./ecm -c 8 2000 < job6427.txt > job6427_t01.txt
-> ./ecm -c 7 2000 < job6427.txt > job6427_t02.txt
-> ./ecm -c 7 2000 < job6427.txt > job6427_t03.txt
 
GMP-ECM 7.0.3 [configured with GMP 6.1.1, --enable-asm-redc] [ECM]
Using B1=2000, B2=147396, polynomial x^1, 4 threads
Done 29/30; avg s/curve: stg1 0.010s, stg2 0.012s; runtime: 1s

Run 29 out of 30:
Using B1=2000, B2=147396, polynomial x^1, sigma=1:2423212582
Step 1 took 8ms
Step 2 took 12ms
********** Factor found in step 1: 111817691327273
Found prime factor of 15 digits: 111817691327273
Composite cofactor 18754394467449971433169133636162492600298914413396595751836384412408176818652556808225119789256080647070289939738286246593531841108089813728776853478001495732073616829270297 has 173 digits
 
waiting...
-> ___________________________________________________________________
-> | Running ecm.py, a Python driver for distributing GMP-ECM work   |
-> | on a single machine.  It is Copyright, 2012, David Cleaver and  |
-> | is a conversion of factmsieve.py that is Copyright, 2010, Brian |
-> | Gladman.   Version 0.10 (Python 2.6 or later) 30th Sep 2012.    |
-> |_________________________________________________________________|
 
-> Number(s) to factor:
-> 2097073091591237404218687836513685895877817960290253421046297596274623117183515885512940927331281174454391017370699311839113500789090430626739805618613433715612809988590674625990004910081 (187 digits)
->=============================================================================
-> Working on number: 209707309159123740...674625990004910081 (187 digits)
-> Currently working on: job1932.txt
-> Starting 4 instances of GMP-ECM...
-> ./ecm -c 19 11000 < job1932.txt > job1932_t00.txt
-> ./ecm -c 19 11000 < job1932.txt > job1932_t01.txt
-> ./ecm -c 18 11000 < job1932.txt > job1932_t02.txt
-> ./ecm -c 18 11000 < job1932.txt > job1932_t03.txt
 
GMP-ECM 7.0.3 [configured with GMP 6.1.1, --enable-asm-redc] [ECM]
Using B1=11000, B2=1873422, polynomial x^1, 4 threads
Done 6/74; avg s/curve: stg1 0.043s, stg2 0.046s; runtime: 1s

Run 6 out of 74:
Using B1=11000, B2=1873422, polynomial x^1, sigma=1:4277626488
Step 1 took 36ms
********** Factor found in step 2: 1095649678256579
Found prime factor of 16 digits: 1095649678256579
Composite cofactor 131954905347588391934699304738827948133275634558635457624548533060467418907362122329509131668522067078677069743086471484822031174847391546400311 has 144 digits
 
waiting...
-> ___________________________________________________________________
-> | Running ecm.py, a Python driver for distributing GMP-ECM work   |
-> | on a single machine.  It is Copyright, 2012, David Cleaver and  |
-> | is a conversion of factmsieve.py that is Copyright, 2010, Brian |
-> | Gladman.   Version 0.10 (Python 2.6 or later) 30th Sep 2012.    |
-> |_________________________________________________________________|
 
-> Number(s) to factor:
-> 2097073091591237404218687836513685895877817960290253421046297596274623117183515885512940927331281174454391017370699311839113500789090430626739805618613433715612809988590674625990004910081 (187 digits)
->=============================================================================
-> Working on number: 209707309159123740...674625990004910081 (187 digits)
-> Currently working on: job9509.txt
-> Starting 4 instances of GMP-ECM...
-> ./ecm -c 27 50000 < job9509.txt > job9509_t00.txt
-> ./ecm -c 27 50000 < job9509.txt > job9509_t01.txt
-> ./ecm -c 27 50000 < job9509.txt > job9509_t02.txt
-> ./ecm -c 26 50000 < job9509.txt > job9509_t03.txt
 
GMP-ECM 7.0.3 [configured with GMP 6.1.1, --enable-asm-redc] [ECM]
Using B1=50000, B2=12746592, polynomial x^2, 4 threads
Done 2/107; avg s/curve: stg1 0.219s, stg2 0.190s; runtime: 1s

Run 2 out of 107:
Using B1=50000, B2=12746592, polynomial x^2, sigma=1:3797496244
Step 1 took 196ms
********** Factor found in step 2: 129719656920613
Found prime factor of 15 digits: 129719656920613
Composite cofactor 16166193631506619062699986973017125397615941076923986434223011454064246619826586744066970275619259028143877483718271885648417579265271700432201498195640573216055668220689837 has 173 digits
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