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2010-10-17, 08:29
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#1 |
Jul 2003
So Cal
23·52·13 Posts |
Another milestone
We've hit another milestone! log[(3^607-1)/2] / log(2^32) > 30.
 Took me a few minutes to figure out why it wasn't working! A quick recompile and filtering is underway.
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2010-10-17, 08:55
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#2 |
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
235118 Posts |
That's the usual one. Limbs, shlimbs.
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2010-10-17, 14:19
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#3 |
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Tribal Bullet
Oct 2004
32×5×79 Posts |
Fixed in SVN. Soon everyone's codebase will look like Greg's local one :)
Note that I've received a report of a crash in the initial singleton removal pass for a dataset with 1.1G relations, and have not been able to diagnose it remotely. There is an additional fix for a potential problem in the hashtable code, but maybe I should be dusting off the JUDY library and adding it into places that are expected to build massive hashtables. I'm thinking of the initial singleton pass and the initial matrix build. It's a sign of the times when both of these have already had a lot of their working set pushed off to disk, and even with tens of GB of RAM I still have to worry about scaling badly. Last fiddled with by jasonp on 2010-10-17 at 16:20 |
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2010-10-17, 17:02
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#4 | |
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Jul 2003
So Cal
23·52·13 Posts |
Quote:
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2010-10-17, 19:16
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#5 | |
"Bob Silverman"
Nov 2003
North of Boston
22·1,877 Posts |
Quote:
using 31 bit LPS. Since my MP software uses 30-bit limbs, I ran into a few problems.... One oversight that I had: If QS fails to split two LP's I try SQUFOF. But I had forgotten that my SQUFOF routine is limited to composites less than 2^60... My siever would run for a while, then hang... not core dump, just hang. It had gotten into an infinite loop in squfof. Tracing it down was a pain.... I have had a few similar problems.... For example, in one place I was calling a special prime test routine that is designed internally to work only on double precision (2^60) integers. It too was hanging. Replacing it with a general routine fixed the problem. etc. etc. I think that everything is OK now. BTW, the CWI post processing code doesn't handle ideals > 2^30 or (a,b) lattice values > 2^30 at all..... |
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2010-10-19, 21:12
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#6 | |
Oct 2006
vomit_frame_pointer
23·32·5 Posts |
How many fingers am I holding up?
Quote:
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2012-04-25, 22:06
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#7 |
Sep 2008
Kansas
25·7·17 Posts |
Faster Deterministic Integer Factorization
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2012-04-25, 22:12
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#8 | |
Jun 2003
2·2,719 Posts |
Quote:
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