GNFS targets which need more ECM

[swellman]

C184_149_81 is a composite cofactor remaining after yoyo@Home found a p48 factor. It now appears to be a GNFS candidate.

Can we add it to the table and the t55 queue?

[XYYXF]

A bit later :)

[swellman]

Originally Posted by XYYXF

A bit later :)

Ok but I meant Wombatman and myself or Amphoria (or anyone else willing to run t55).

Ben - what do you think?

[wombatman]

I can go ahead and do that one. I just finished the previous one.

Reserving C184_149_81 for 18k curves at B1=110e6.

[XYYXF]

Remaining t55s will be loaded to yoyo soon. Please take B1=300M for individual processing :)

[swellman]

Originally Posted by swellman

I'm currently running Stage 2 of t55 for C183_138_97...

Using B1=110000000-110000000, B2=776278396540, polynomial Dickson(30), sigma=3:3558184274
Wed 2016/08/24 10:59:19 UTC Step 1 took 0ms
Wed 2016/08/24 10:59:19 UTC Step 2 took 378927ms
Wed 2016/08/24 10:59:19 UTC ********** Factor found in step 2: 1497439840698451430386803257818917833993373206687
Wed 2016/08/24 10:59:19 UTC Found prime factor of 49 digits: 1497439840698451430386803257818917833993373206687

I am continuing with the factorization of the remaining composite cofactor.

[swellman]

Originally Posted by XYYXF

Remaining t55s will be loaded to yoyo soon. Please take B1=300M for individual processing :)

Ok I see you've assigned all remaining unreserved GNFS numbers to yoyo. Very nice.

I am willing to try running the Stage 2 portion of ECM @B1=3e8. Amphoria, Wombatman - how do you guys feel about trying the higher level? Or is it a fools errand?

[VBCurtis]

Originally Posted by swellman

Ok I see you've assigned all remaining unreserved GNFS numbers to yoyo. Very nice.

I am willing to try running the Stage 2 portion of ECM @B1=3e8. Amphoria, Wombatman - how do you guys feel about trying the higher level? Or is it a fools errand?

I can help The Wombat supply you some GPU stage 1 residues at 3e8, once I get a little buffer of my own stage1 residues built up; say, starting 7-10 days from now. Something on the order of 1600 curves would take my GPU about 6 days, roughly the spare time I have monthly while I CPU-stage2 through my residues.

[swellman]

Thanks VBCurtis. I will try to digest whatever Stage 1 work you (and others) wish to send me. Watch your PM.

[wombatman]

I probably won't mess around too much 3e8 for now (due to summer temperatures and power costs), but I'll come back around to this, I'm sure.

[swellman]

Originally Posted by wombatman

Will instead work on C183_144_73. I searched the thread and no claims came up, so hopefully this one will be alright!

We hit paydirt again!

2016/08/26 02:19:07 UTC Using B1=110000000-110000000, B2=776278396540, polynomial Dickson(30), sigma=3:3576194425
Fri 2016/08/26 02:19:07 UTC Step 1 took 0ms
Fri 2016/08/26 02:19:07 UTC Step 2 took 362844ms
Fri 2016/08/26 02:19:07 UTC ********** Factor found in step 2: 456126639723968295600123333627071341539949455446382930193
Fri 2016/08/26 02:19:07 UTC Found prime factor of 57 digits: 456126639723968295600123333627071341539949455446382930193
Fri 2016/08/26 02:19:07 UTC Prime cofactor ((73^144+144^73)/60087784999431137751474523426524726153852971371294735518855426023490080918339574187325)/456126639723968295600123333627071341539949455446382930193 has 126 digits

Originally Posted by wombatman

I probably won't mess around too much 3e8 for now (due to summer temperatures and power costs), but I'll come back around to this, I'm sure.

Bummer, but that's understandable. Maybe a nice project for the holidays? At least the temps will be more tolerable. See you around the forum.