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Old 2008-02-22, 23:52   #1
mdettweiler
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Default program to verify factors found by sr(x)sieve?

Hi all,

Does anyone know of a program that can verify factors found by any of the srsieve family of sievers, by checking whether the factor really does divide the candidate? I know that srsieve has the ability to check factors as it finds them, but what I'm looking for is a program to check an existing srsieve-compatible factors file.

I once saw a Perl script that does this somewhere on the forums here, but I can't find it now.

Thanks!

Anonymous
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Old 2008-02-23, 20:21   #2
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AFAIR the perl script you mention is a part of "ksieve suite"
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Old 2008-02-23, 20:37   #3
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Quote:
Originally Posted by Cruelty View Post
AFAIR the perl script you mention is a part of "ksieve suite"
Thanks, that seems to be what I'm looking for!
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Old 2008-02-23, 20:40   #4
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Quote:
Originally Posted by Anonymous View Post
Thanks, that seems to be what I'm looking for!
Actually...now that I try it, it doesn't seem to work at all. It tells me all the factors it checks, even ones that I generated with ksieve itself, are bad. Hmmm.....
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Old 2008-02-23, 20:49   #5
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Quote:
Originally Posted by Anonymous View Post
Actually...now that I try it, it doesn't seem to work at all. It tells me all the factors it checks, even ones that I generated with ksieve itself, are bad. Hmmm.....
maybe what it says is bad is good and what it says is good is bad
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Old 2008-02-23, 20:50   #6
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I have struggled with it some time ago under windows and it helped to convert "pl" file to "bat" format... check this out.
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Old 2008-02-23, 21:02   #7
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Quote:
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maybe what it says is bad is good and what it says is good is bad
No, it still says bad even when I make up gibberish factors.
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Old 2008-02-23, 21:03   #8
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Quote:
Originally Posted by Cruelty View Post
I have struggled with it some time ago under windows and it helped to convert "pl" file to "bat" format... check this out.
I'm using Linux, and I've got Perl installed just fine...hmm.
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Old 2008-02-23, 21:13   #9
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Did you pipe the output to Pari?
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Old 2008-02-23, 21:20   #10
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Quote:
Originally Posted by Cruelty View Post
Did you pipe the output to Pari?
What is Pari?
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Old 2008-02-23, 21:41   #11
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Quote:
Originally Posted by Anonymous View Post
What is Pari?
I'm guessing Pari/GP.
http://pari.math.u-bordeaux.fr/
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