GNFS targets which need more ECM - Page 12

swellman · 2016-08-31, 10:57

Congrats to XYYXF and yoyo@Home in getting all composites in the project to t50!

An impressive effort, completed in just over 5 years. On to t55!

swellman · 2016-08-31, 11:06

Another stub has appeared on the yoyo@Home results page. It is another GNFS candidate.

Presumably yoyo will take this C194 to t55, just pointing it out for addition to the table in the OP and possible movement forward in the queue to be with the other GNFS numbers. Doubtless several more of these will appear over time as yoyo does its work.

amphoria · 2016-08-31, 11:45

Quote:

Originally Posted by amphoria

Reserving C184_134_119 for 18k curves at B1=110M.

18k curves complete with no factor found.

I also ran 2.5k curves at B1=300M but do not intend to run anymore at this time.

XYYXF · 2016-09-01, 10:17

Quote:

Originally Posted by amphoria

Completely factored using ecm_gpu for stage 1.

Code:

Using B1=110000000-110000000, B2=776278396540, polynomial Dickson(30), sigma=3:118231396
Step 1 took 0ms
Step 2 took 276203ms
********** Factor found in step 2: 387591463190707791451400544418222475776190781379269097
Found probable prime factor of 54 digits: 387591463190707791451400544418222475776190781379269097
Probable prime cofactor 7765100440326993936012215378592114245443824190265840631224967771478238353296247235096575361141325802082377075991138704716720251383 has 130 digits

?

amphoria · 2016-09-01, 16:02

Quote:

Originally Posted by XYYXF

?

I am not sure what you are querying. The name of the candidate was given in post #98 which you have not quoted completely.

XYYXF · 2016-09-01, 16:19

The forum engine shortened the quote. But, well, that was C184_134_119. And then you wrote that

Quote:

Originally Posted by amphoria

18k curves complete with no factor found.

I also ran 2.5k curves at B1=300M but do not intend to run anymore at this time.

So I'm confused a bit :)

amphoria · 2016-09-01, 21:04

Apologies - I quoted the wrong original post in #124. This is what it should have looked like.

Quote:

Originally Posted by amphoria

Reserving C186_145_72 for 18k curves at B1=110M.

18k curves complete with no factor found.

I also ran 2.5k curves at B1=300M but do not intend to run anymore at this time.

XYYXF · 2016-09-02, 02:00

Thanks :)

XYYXF · 2016-09-04, 22:50

C183_127_118
C186_145_72
C187_142_59

Should we wait for 10k@300M, or maybe it will be better to start polynomial selection for hungry 15e siever?

XYYXF · 2016-09-04, 22:53

Quote:

Originally Posted by swellman

Another stub has appeared on the yoyo@Home results page. It is another GNFS candidate.

Presumably yoyo will take this C194 to t55, just pointing it out for addition to the table in the OP and possible movement forward in the queue to be with the other GNFS numbers. Doubtless several more of these will appear over time as yoyo does its work.

I think these stubs should be processed manually. The queue for yoyo@home is already large enough :)

swellman · 2016-09-04, 23:32

Quote:

Originally Posted by XYYXF

C183_127_118
C186_145_72
C187_142_59

Should we wait for 10k@300M, or maybe it will be better to start polynomial selection for hungry 15e siever?

VBCurtis ran 1600 curves (Stage 1) on C187_142_59 and has just sent me the file. I'll start Stage 2 on it tomorrow. But that's only a small part of the ECM work @B1=3e8. I can run more curves but it won't go quickly on my CPUs.

2016-08-31, 11:06	#123
swellman Jun 2012 2²·13·59 Posts	Another stub has appeared on the yoyo@Home results page. It is another GNFS candidate. Presumably yoyo will take this C194 to t55, just pointing it out for addition to the table in the OP and possible movement forward in the queue to be with the other GNFS numbers. Doubtless several more of these will appear over time as yoyo does its work. Last fiddled with by swellman on 2016-08-31 at 11:08

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2016-08-31, 10:57	#122
swellman Jun 2012 2²·13·59 Posts	Congrats to XYYXF and yoyo@Home in getting all composites in the project to t50! An impressive effort, completed in just over 5 years. On to t55!

2016-09-02, 02:00	#129
XYYXF Jan 2005 Minsk, Belarus 2⁴·5² Posts	Thanks :)

2016-09-04, 22:50	#130
XYYXF Jan 2005 Minsk, Belarus 2⁴×5² Posts	C183_127_118 C186_145_72 C187_142_59 Should we wait for 10k@300M, or maybe it will be better to start polynomial selection for hungry 15e siever?