Request for some high-level ECM

schickel · 2014-08-02, 10:59

In working on Aliquot sequence 7044, I have hit a pretty big roadblock. On the current line, I have a c170 composite that is currently my most wanted. I've managed a t45 on it, but do not have the oomph to get much higher anytime soon. Could someone with some spare cycles help me out?

Composite:

Code:

44372976609219605920970917073060893237104077933564785933283944210773143942177660972637693825980692133877619049897368796520149382235143537600699965770310835229937169064489

It's currently at the back of my factoring queue, but I really dread the thought of a c170 GNFS job :shudder:

yoyo · 2014-08-02, 12:40

I'm starting now 7600 curves at B1=43e6 in yoyo@home.
The status will be shown here http://www.rechenkraft.net/yoyo//y_status_ecm.php, when the first curve returns.

yoyo

Batalov · 2014-08-02, 18:53

10000 x 110e6's + 2000 x 260e6's returned nothing.

R.D. Silverman · 2014-08-02, 21:44

Quote:

Originally Posted by Batalov

10000 x 110e6's + 2000 x 260e6's returned nothing.

For a C170, further ECM would be wasted, Use NFS

Batalov · 2014-08-02, 23:00

Yes, it's ready for it: ~t55 is enough for a c170.

schickel · 2014-08-03, 00:23

Quote:

Originally Posted by yoyo

I'm starting now 7600 curves at B1=43e6 in yoyo@home.
The status will be shown here http://www.rechenkraft.net/yoyo//y_status_ecm.php, when the first curve returns.

yoyo

Thank you very much!

Quote:

Originally Posted by Batalov

10000 x 110e6's + 2000 x 260e6's returned nothing.

D*mn, how did you do that so fast?

Quote:

Originally Posted by R.D. Silverman

For a C170, further ECM would be wasted, Use NFS

I was afraid you would say that.

I think I will probably wait until fall to run this one. This summer looks to be a real cooker for my systems and I can only run 1/2 my cores during the day.

yoyo · 2014-08-06, 18:04

You can always send me a email or pm if you need many curves for a B1.

yoyo

schickel · 2015-06-09, 09:48

Quote:

Originally Posted by schickel

In working on Aliquot sequence 7044, I have hit a pretty big roadblock. On the current line, I have a c170 composite that is currently my most wanted. I've managed a t45 on it, but do not have the oomph to get much higher anytime soon. Could someone with some spare cycles help me out?

Composite:

Code:

44372976609219605920970917073060893237104077933564785933283944210773143942177660972637693825980692133877619049897368796520149382235143537600699965770310835229937169064489

It's currently at the back of my factoring queue, but I really dread the thought of a c170 GNFS job :shudder:

Code:

Mon Jun 08 18:54:28 2015  prp82 factor: 1247838802553429067031678504494199824318164970480039837750781151019574659802773493
Mon Jun 08 18:54:28 2015  prp89 factor: 35559862795114255655672694119167424959580714462059541381320703575709268456919482830521573
Mon Jun 08 18:54:28 2015  elapsed time 31:20:44

Nice split! Six months of factoring, 280+ wall hours on the matrix.

LaurV · 2015-06-09, 11:29

Yuck! D9, that IS some rising on that graph!
Congrats!

2014-08-02, 10:59	#1
schickel "Frank <^>" Dec 2004 CDP Janesville 2·1,061 Posts	Request for some high-level ECM In working on Aliquot sequence 7044, I have hit a pretty big roadblock. On the current line, I have a c170 composite that is currently my most wanted. I've managed a t45 on it, but do not have the oomph to get much higher anytime soon. Could someone with some spare cycles help me out? Composite: Code: 44372976609219605920970917073060893237104077933564785933283944210773143942177660972637693825980692133877619049897368796520149382235143537600699965770310835229937169064489 It's currently at the back of my factoring queue, but I really dread the thought of a c170 GNFS job :shudder:

2014-08-02, 18:53	#3
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 9,497 Posts	10000 x 110e6's + 2000 x 260e6's returned nothing. Last fiddled with by Batalov on 2014-08-02 at 21:34

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2014-08-02, 12:40	#2
yoyo Oct 2006 Berlin, Germany 1001101111₂ Posts	I'm starting now 7600 curves at B1=43e6 in yoyo@home. The status will be shown here http://www.rechenkraft.net/yoyo//y_status_ecm.php, when the first curve returns. yoyo

2014-08-02, 23:00	#5
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 9,497 Posts	Yes, it's ready for it: ~t55 is enough for a c170.

2014-08-06, 18:04	#7
yoyo Oct 2006 Berlin, Germany 7·89 Posts	You can always send me a email or pm if you need many curves for a B1. yoyo

2015-06-09, 11:29	#9
LaurV Romulan Interpreter Jun 2011 Thailand 2⁶·151 Posts	Yuck! D9, that IS some rising on that graph! Congrats!