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Old 2017-05-12, 06:31   #23
LaurV
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I may also dedicate a Sandy to sieving assuming somebody comes out with a poly and a range-split (4 cores of i7-2600k).

I asked once, but no "expert" replied (and I am only guessing, as I never took such a job, neither dreamed to do something similar): how much memory would LA need? (I may have a box with 64G available for a while). Is actual LA multi-threaded? How long time//core is expected for such a big LA job?
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Old 2017-05-12, 07:25   #24
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Quote:
Originally Posted by swellman View Post
Well folks, what's next? Anybody want to start ECM on the C191 at say the t50 level?

I can help once it goes to the t55 level in a few days. Or is yoyo better suited for most/all of the ECM for this series?
I already did 4000@43e6 with no luck. I think we can run ECM up to t55 level and then ask yoyo for help with his army of minions
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Old 2017-05-12, 11:34   #25
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I'll take a crack at 110e6 then (expect slow going)
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Old 2017-05-12, 11:52   #26
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Quote:
Originally Posted by LaurV View Post
I may also dedicate a Sandy to sieving assuming somebody comes out with a poly and a range-split (4 cores of i7-2600k).

I asked once, but no "expert" replied (and I am only guessing, as I never took such a job, neither dreamed to do something similar): how much memory would LA need? (I may have a box with 64G available for a while). Is actual LA multi-threaded? How long time//core is expected for such a big LA job?
I'm no expert, but I've been told a 33-bit job in the 15e queue for which I have volunteered will be a tough job for my 32 Gb i7 to complete. I'm planning on LA taking 3-4 months.

So your 64 Gb machine should have enough memory, and presumably enough processing power etc to complete a 33-bit job.

Keep in mind this may be a 32-bit job on the 16e siever. Either way, 64 Gb seems more than adequate.

Check out the last few pages of this thread for some recent GNFS examples in the low 190s range.

Last fiddled with by swellman on 2017-05-12 at 11:53
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Old 2017-05-15, 12:42   #27
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Quote:
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I'll take a crack at 110e6 then (expect slow going)
200 curves, nada. I'm moving up to 500e6 at my enormously slow pace just to see if I get extremely luck before yoyo takes a whack at it
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Old 2017-05-22, 06:04   #28
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Quote:
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500e6
200 curves, no dice. Continuing more out of lack of time to find other work for now, so a few more days at least
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Old 2017-05-28, 19:13   #29
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Er, multiple typos in those posts. 500e6 was too much memory in S2 for my computer, so I reduced it to 250e6 while failing to report that here; meanwhile the 200 was a typo for 2000, so in sum I've done 4000 curves at 250e6 with no luck. I'm moving on to other projects for now. I guess this should go to yoyo?
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Old 2017-05-31, 15:47   #30
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How many curves at which B1 should I run?
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Old 2017-05-31, 21:05   #31
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Quote:
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How many curves at which B1 should I run?
My best guess is 10,000 curves @B1=11e7 followed by 35,000 curves @B1=3e8.

Too much?

Last fiddled with by swellman on 2017-05-31 at 21:05
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Old 2017-06-01, 03:12   #32
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Bayesian recommends
Code:
 4700 curves with B1 = 850.0e6
 2600 curves with B1 =   2.9e9
So if you want to be careful, maybe double those?
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Old 2017-06-01, 03:16   #33
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No curves at 260e6, 850e6?

The 10,000 curves at B1=110e6 are now started.
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