Ready GNFS targets - Page 4

Dubslow · 2016-05-04, 04:04

Quote:

Originally Posted by swellman

Ryan is working C184_135_106 via GNFS.

He seems to have almost unlimited sieving capacity - he sieved this job in just a few hours

That's an order of magnitude more throughput than all of NFS@Home. That's approaching NSA-like capabilities... that's an order of magnitude less than a top 500 super computer. (I estimate a Sandy Bridge core to be around 5 Gflops, he has at least 5 Tflops available to him, maybe more than 10, and top500 entry barrier is just north of 200 Tflops)

fivemack · 2016-08-06, 22:47

C181_135_109 polynomial selection complete (9.5 days on GTX1080 plus a few CPU-days for the later stages), job has been queued on nfs@home 15e.

Murphy value for best-sieving polynomial is 7.801e-14

Code:

n: 2867044323320749592540164133499547046223664424606812715339474504938460531399000702981882519255722460118993854730290860319626119708345486443185265331665252209608840098317401804628117
# norm 1.408843e-17 alpha -7.176711 e 7.801e-14 rroots 3
skew: 23413047.69
c0: 17223032857390177254215897668201108985256988
c1: 1824653626012766203611662211797661506
c2: -91085400230978235482537760940
c3: -10129310781067231332617
c4: 212832135350976
c5: 8125200
Y0: -51229494367137667241756626644779205
Y1: 74583098550675799

fivemack · 2016-08-07, 17:06

300 hours on GTX970 plus a small amount of CPU time; this is the fastest-sieving polynomial, highest E was 6.929.

Code:

n: 31730091958529215533314175376017378473863254811535047221198082180840937158901485785321937399737527139580551375312148902058836702708608846963652304281291363527670758418930784803448211
# norm 1.077785e-17 alpha -8.212748 e 6.588e-14 rroots 3
skew: 29296604.29
c0: 40501257117816600006724996898941787355353088
c1: 5950548212769676633235623700049223584
c2: 484211295574127770364814026122
c3: -4553476120491220718099
c4: -1352990782235010
c5: 7698600
Y0: -83755226054300379292957549181971711
Y1: 231533427692929633

Dubslow · 2016-08-14, 04:44

Quote:

Originally Posted by fivemack

300 hours on GTX970 plus a small amount of CPU time; this is the fastest-sieving polynomial, highest E was 6.929.

Code:

n: 31730091958529215533314175376017378473863254811535047221198082180840937158901485785321937399737527139580551375312148902058836702708608846963652304281291363527670758418930784803448211
# norm 1.077785e-17 alpha -8.212748 e 6.588e-14 rroots 3
skew: 29296604.29
c0: 40501257117816600006724996898941787355353088
c1: 5950548212769676633235623700049223584
c2: 484211295574127770364814026122
c3: -4553476120491220718099
c4: -1352990782235010
c5: 7698600
Y0: -83755226054300379292957549181971711
Y1: 231533427692929633

That's quite the gap. How many polys did you test sieve? How many total had a better score than the actual winner?

fivemack · 2016-08-14, 17:39

Quote:

Originally Posted by Dubslow

That's quite the gap. How many polys did you test sieve? How many total had a better score than the actual winner?

I test-sieved the 32 best E-scores, which were from 5.826e-14 to 6.929e-14; the fastest-sieving one had the second-best E score.

Code:

rank  yield  stderr  runtime/rel  stderr
1	24186.7	2481.4	0.4135	0.022151
0	24233.5	1607.0	0.4191	0.024059
6	22732.2	1051.5	0.4254	0.019456
8	24534.2	2728.6	0.4261	0.026977
2	23580.6	2195.7	0.4297	0.020619
24	22994.2	2456.8	0.4308	0.023803
3	23500.3	1887.2	0.4308	0.017813
16	23212.9	1428.7	0.4314	0.023826

XYYXF · 2016-09-01, 10:10

C134_138_97 needs GNFS:

Code:

98408865942580778227961341707102990415039715936791578392969116178206906434884808658322492364270226723481009406859125452591724638907929

unconnected · 2016-09-01, 10:12

I'll take it.

swellman · 2016-09-01, 12:38

I factored it on Aug 27: http://www.mersenneforum.org/showpos...&postcount=118

unconnected · 2016-09-01, 13:47

Ok, thanks.

XYYXF · 2016-09-01, 14:56

Ugh! Sorry. Forgot to remove it from the yoyo queue.

XYYXF · 2016-10-29, 07:30

С142_131_124 needs GNFS:

Code:

5210529691066565797257456228658139553918217336357339442709049302999626656196741161542669359479005591654809933254107274624028909150290695297551

2016-09-01, 10:10	#39
XYYXF Jan 2005 Minsk, Belarus 2⁴·5² Posts	C134_138_97 needs GNFS: Code: 98408865942580778227961341707102990415039715936791578392969116178206906434884808658322492364270226723481009406859125452591724638907929

2016-10-29, 07:30	#44
XYYXF Jan 2005 Minsk, Belarus 2⁴·5² Posts	С142_131_124 needs GNFS: Code: 5210529691066565797257456228658139553918217336357339442709049302999626656196741161542669359479005591654809933254107274624028909150290695297551

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
C321_149_146: Ready for SNFS	swellman	XYYXF Project	21	2018-03-05 03:54
GNFS targets which need more ECM	XYYXF	XYYXF Project	295	2017-10-27 12:38
SNFS targets which need more ECM	XYYXF	XYYXF Project	57	2017-07-04 19:15
Ready SNFS targets	XYYXF	XYYXF Project	25	2016-11-20 21:35
Getting ready for news	only_human	Lounge	4	2004-05-16 23:36

2016-09-01, 10:12	#40
unconnected May 2009 Russia, Moscow 13·199 Posts	I'll take it.

2016-09-01, 12:38	#41
swellman Jun 2012 5774₈ Posts	I factored it on Aug 27: http://www.mersenneforum.org/showpos...&postcount=118

2016-09-01, 13:47	#42
unconnected May 2009 Russia, Moscow 2587₁₀ Posts	Ok, thanks.

2016-09-01, 14:56	#43
XYYXF Jan 2005 Minsk, Belarus 2⁴·5² Posts	Ugh! Sorry. Forgot to remove it from the yoyo queue.