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Old 2003-07-25, 13:54   #1
kwstone
 
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Jun 2003
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Default worktodo.ini ?

Can anyone point me to an explanation of the contents of worktodo.ini file?
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Old 2003-07-25, 15:20   #2
PageFault
 
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It contains one or more lines, each having an operator with three arguments - test(candidate, factoring depth, status). It looks like:

Test=20000000,66,0

which sets the client to do a LL test on 20000000M, which was trial factored to 66 bits and needs P-1 factoring.
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Old 2003-07-25, 16:00   #3
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For double checking assignments it replaces Test= with DoubleCheck=

If factoring has been completed the 0 will turn into a 1.

I'm not sure what trial factoring looks like though...
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Old 2003-07-25, 16:14   #4
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For Trial Factoring it looks like:

Factor=20000000,66

and it'll start factoring from 2^66, and go up to either the program default, or up to to the value FactorOverride is set to in prime.ini, if FactorOverride exists in prime.ini
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Old 2003-07-25, 17:36   #5
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If you want to do P-1 factoring only, it contains a line

Pfactor=20000000,66,0

where 66 indicates the depth to which the exponent has previously been trial factored (or will be trial factored, if you follow the strategy discussed in some other threads).

The "0" says that this exponent has not yet had a first-time LL test. If it has, then change the "0" to a "1", and a less-intensive (lower bounds) P-1 test will be done, since there is less net benefit to GIMPS for finding a factor if only the doublecheck will be eliminated.
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Old 2003-07-25, 20:37   #6
outlnder
 
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You guys know that you probably just confused the hell out of the poor guy.
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Old 2003-07-25, 23:37   #7
dswanson
 
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... and we didn't even get into ECM yet! :D
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Old 2003-07-26, 04:35   #8
kwstone
 
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Not too confused. ;)

In fact, that's a very helpful clarification.

So what is the default depth for trial factoring?

And what's ECM? (Electronic Counter-Measures? )


I'm surprised the worktodo.ini format is not documented anywhere on the site. Maybe one for the FAQ? Or am I the only person who couldn't figure this out by himself?
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Old 2003-07-26, 09:00   #9
smh
 
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Quote:
Originally Posted by kwstone
So what is the default depth for trial factoring?
http://www.mersenne.org/math.htm has a table with the default depths

Quote:
Originally Posted by kwstone
And what's ECM? (Electronic Counter-Measures? )
Elliptic Curves Method. This is another way to find factors, especially for smaller numbers.

Quote:
Originally Posted by kwstone
I'm surprised the worktodo.ini format is not documented anywhere on the site. Maybe one for the FAQ? Or am I the only person who couldn't figure this out by himself?
The readme.txt has a little bit of extra information (about ECM and PMinus1), although not the comple worktodo.in is described in there
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Old 2003-07-27, 06:30   #10
lycorn
 
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Quote:
Originally Posted by smh
Quote:
Originally Posted by kwstone
I'm surprised the worktodo.ini format is not documented anywhere on the site. Maybe one for the FAQ? Or am I the only person who couldn't figure this out by himself?
The readme.txt has a little bit of extra information (about ECM and PMinus1), although not the comple worktodo.in is described in there
You may also wish to read the undoc.txt file. Although not specifically about the wortodo.ini, it gives you some insight of Prime95 ins and outs.
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