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Old 2011-01-07, 10:39   #1
schickel
 
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"Frank <^>"
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Default ECM work on 4788:i2617 c172

After a lot of heavy lifting from bchaffin and Batalov, we have now come to a c172 on line 2617:
Code:
2229348552361822129355877431354933637944777944345113399577912185681707793442268713514615675586421258420770429669349552195250785917635169750211125857968489791489287723679679
Batalov finished "all" curves at 11M. Members of the Forum have been running curves at 43M and 110M. Here's the current count:
Code:
    Level    Count    Who
 11,000,000   5500    Batalov
 43,000,000    205    Andi_HB
 43,000,000    547    schickel
110,000,000     59    schickel
110,000,000    324    em99010pepe 
110,000,000     50    debrouxl
110,000,000  10400    bsquared
110,000,000   5010    Yoyo@home
260,000,000     50    debrouxl
260,000,000   2600    bsquared
260,000,000    116    em9901pepe
260,000,000   4770    Yoyo@home
260,000,000     10    Joshua2
850,000,000     10    Joshua2
850,000,000   5000    Yoyo@home
Here are the current P-1/P+1 levels:
Code:
Type    B1    B2    Who
P-1    1e11  1e17  Andi47

P+1x3  1e9   def.  Joshua2
Anyone care to run more P+/-1?

Are we going to be able to tackle this as a GNFS job? jrk has found a decent enough polynomial.

Last fiddled with by Mini-Geek on 2011-01-22 at 15:01 Reason: Still boggling over 850M(!)
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Old 2011-01-07, 13:49   #2
Mini-Geek
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"Tim Sorbera"
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I've done P-1 with B1=1e8, doing P-1 with B1=1e9, B2=205702371522480 (GMP-ECM default), will follow that with P+1 with B1=1e8. I'll just edit the first post with P-1/P+1 statuses, and we can update that if/when someone ups the bounds.
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Old 2011-01-07, 20:11   #3
Batalov
 
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Quote:
Originally Posted by schickel View Post
...Are we going to be willing/able to tackle this as a GNFS job?
It is surely doable - if RSALS (or NFS@Home) would be willing to help as they have in the past.
But a lot of ECM - first. Ask yoyo@home, too?
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Old 2011-01-07, 21:04   #4
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50 curves at B1=26e7, no factor.

A C172 would certainly be over-demanding for the poor little 14e siever, so no dice for RSALS. IMO, 15e in NFS@Home would be a better bet...
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Old 2011-01-08, 08:00   #5
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Quote:
Originally Posted by schickel View Post
a c172

What should be our [ECM] target on this?
Hmmm... My guess is for t55 (or maybe a bit more?). Can any experienced ECMer confirm or correct this?
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Old 2011-01-08, 16:36   #6
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113 curves more at B1=43e6, no factor.
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Old 2011-01-08, 17:49   #7
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3200 curves at 110M done.
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Old 2011-01-09, 10:53   #8
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How many ecm curves are still needed at the different B1 levels:
3M:
11M:
43M:
110M:
260M:
850M:
I would start with the lowest on in yoyo@home and complete them.

yoyo
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Old 2011-01-09, 11:16   #9
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bsquared's 3200 curves at 110e6 make 43e6 curves unnecessary. Now,
11M: 4480
43M: 7553
110M: 17770-3200
And this will be a ~32% level (I'd say enough, but opinions differ)

Last fiddled with by Batalov on 2011-01-09 at 11:17
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Old 2011-01-09, 12:27   #10
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I started to run 5000 curves on B1=110M.
yoyo
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Old 2011-01-09, 14:28   #11
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3200 more at 110M done.
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