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-   -   Reserved for MF - Sequence 4788 (https://www.mersenneforum.org/showthread.php?t=11615)

fivemack 2009-12-02 10:25

2000@4e7 on the C161, no factor.

Running another 2000@4e7.

jrk 2009-12-03 02:04

I've finished 1000 curves @ B1=43000000, B2=388112953420

Batalov 2009-12-03 04:01

On my Phenom, I've finished 1000 curves @ B1=110e6, B2=def
and will run some more (while I am waiting for a Lanczos job)

fivemack 2009-12-03 09:38

Second 2000@4e7 produced no factor either.

Running 4000@4e7 and GPU polysearch in parallel.

jrk 2009-12-03 09:53

So if I'm keeping count correctly, that is 5000 curves at ~4e7 and 1000 curves at 11e7 total so far.

That is roughly a t50.

[QUOTE=fivemack;197669]Running 4000@4e7 and GPU polysearch in parallel.[/QUOTE]
I am also running a GPU poly search.

Andi47 2009-12-03 10:10

[QUOTE=jrk;197672]So if I'm keeping count correctly, that is 5000 curves at ~4e7 and 1000 curves at 11e7 total so far.

That is roughly a t50.
[/QUOTE]

So maybe we need several curves at B1=11e7 to go for t55?

jrk 2009-12-03 10:15

[QUOTE=jrk;197672]I am also running a GPU poly search.[/QUOTE]
And I have adjusted my parameters, so Tom & I should be searching different spaces. I am using small A5 values this time instead of choosing large values.

fivemack 2009-12-03 10:59

Umm, I am just running 'msieve -v -np' so starting with A5=0, so I may be stepping on your toes. Can you suggest better parameters?

10metreh 2009-12-03 11:36

[QUOTE=Andi47;197678]So maybe we need several curves at B1=11e7 to go for t55?[/QUOTE]

The t55 estimate was for the c169, not the c161. I think maybe another t50 would be in order.

bsquared 2009-12-03 14:13

[QUOTE=jrk;197672]So if I'm keeping count correctly, that is 5000 curves at ~4e7 and 1000 curves at 11e7 total so far.

[/QUOTE]

Add another 800 @ 11e7; done last night.

jrk 2009-12-03 16:53

[QUOTE=fivemack;197676]Umm, I am just running 'msieve -v -np' so starting with A5=0, so I may be stepping on your toes. Can you suggest better parameters?[/QUOTE]
You are OK. Please continue. I meant that I changed msieve's parameters for selecting the rational coefficient, so it should not choose the same as a normal msieve.

Although now I am not sure that very small A5's are much better...


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