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-   -   Poly select and planning for 2,2210M (https://www.mersenneforum.org/showthread.php?t=24719)

swellman 2019-08-23 12:36

Poly select and planning for 2,2210M
 
ECM of 2,2210M to t65 is 98% complete. Should be fully finished by 1 Sep.

With that in mind, I am reserving c6 < 1M using msieveGPU.

RichD 2019-08-24 17:00

Where does one go to find the size of, well, actually the number itself?

swellman 2019-08-24 17:44

[QUOTE=RichD;524444]Where does one go to find the size of, well, actually the number itself?[/QUOTE]

DukeBG posted a list [url=https://www.mersenneforum.org/showpost.php?p=513436&postcount=42]here[/url] over in the Contributing to the Cunningham Project.

It also in factordb, search on 2^2210+1.

[CODE]1035494967981608996094968430385789545942273148368197179174157979458916926996249361835599034841457568721713517315035171458834084281747156675749209765447133072804654265940216339728917289743563475602882258734938561
[/CODE]

Eta: [url]http://homes.cerias.purdue.edu/~ssw/cun/[/url] for the original source.

RichD 2019-08-24 18:49

C211
 
Starting on this C211 at 8M using msieve-GPU.

Eta: sextic poly

VBCurtis 2019-08-24 20:58

The CADO team sieve will wrap up in a few days; I'll take a shot at CADO poly select at that time, likely Thursday or Friday. I think degree 6 is a CADO strength, so I'll search deg 6 first; if I'm right and the scores are way better than msieve deg 6, we should move our GPU resources to deg 5.

We should have good data by next Sunday on both msieve and CADO for deg 6.

swellman 2019-08-24 21:08

[QUOTE=VBCurtis;524457]The CADO team sieve will wrap up in a few days; I'll take a shot at CADO poly select at that time, likely Thursday or Friday. I think degree 6 is a CADO strength, so I'll search deg 6 first; if I'm right and the scores are way better than msieve deg 6, we should move our GPU resources to deg 5.

We should have good data by next Sunday on both msieve and CADO for deg 6.[/QUOTE]

Agreed, at least with my old hardware. I couldn’t get a stable run going with deg=6 using msieveGPU.

Crying uncle and moving poly search to deg=5 for c5 < 1M.

R.D. Silverman 2019-08-24 22:05

[QUOTE=swellman;524459]Agreed, at least with my old hardware. I couldn’t get a stable run going with deg=6 using msieveGPU.

Crying uncle and moving poly search to deg=5 for c5 < 1M.[/QUOTE]

Will the forum do the sieving?

RichD 2019-08-25 12:26

[QUOTE=RichD;524450]Starting on this C211 at 8M using msieve-GPU.

Eta: sextic poly[/QUOTE]

I ran a small test region last night (8-8.01M). Everything appeared normal. Except when I ran -nps (as a separate invocation) the following appeared many times in the screen output.
[CODE]line minimize failed[/CODE]
Additionally, the -nps phase took an extraordinarily long time to perform.

Giving the above, I will switch to a quintic search beginning at 8M.

R.D. Silverman 2019-08-28 12:55

[QUOTE=R.D. Silverman;524461]Will the forum do the sieving?[/QUOTE]

??

Or will NFS@Home do it? Greg has not listed any numbers as queued beyond
2,1076+ [currently sieving].

VBCurtis 2019-08-28 13:53

Why are you so demanding about a decision that (1) hasn't been made yet, and (2) is a few months away? By the time we have a poly, some of the 2330L sievers may have a sense of whether they'd like to do another team project, or wait until 2020.
Please, relax.

R.D. Silverman 2019-08-28 14:47

[QUOTE=VBCurtis;524723]Why are you so demanding about a decision that (1) hasn't been made yet, and (2) is a few months away? By the time we have a poly, some of the 2330L sievers may have a sense of whether they'd like to do another team project, or wait until 2020.
Please, relax.[/QUOTE]

Demanding??? I asked an innocuous question! Why are you so accusatory?

You say that it is a few months away, yet 2,2330L will finish sieving in a couple of days.

Greg is going to do 2,2330M, so the obvious conclusion is that the forum does
not plan to do any sieving for a 'few months'.


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