worktodo.ini ?

kwstone · 2003-07-25, 13:54

Can anyone point me to an explanation of the contents of worktodo.ini file?

PageFault · 2003-07-25, 15:20

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.

PrimeFun · 2003-07-25, 16:00

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...

eepiccolo · 2003-07-25, 16:14

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

dswanson · 2003-07-25, 17:36

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.

outlnder · 2003-07-25, 20:37

You guys know that you probably just confused the hell out of the poor guy.

dswanson · 2003-07-25, 23:37

... and we didn't even get into ECM yet! :D

kwstone · 2003-07-26, 04:35

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?

smh · 2003-07-26, 09:00

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

lycorn · 2003-07-27, 06:30

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.

2003-07-25, 13:54	#1
kwstone Jun 2003 Shanghai, China 109 Posts	worktodo.ini ? Can anyone point me to an explanation of the contents of worktodo.ini file?

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2003-07-25, 15:20	#2
PageFault Aug 2002 Dawn of the Dead 5×47 Posts	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.

2003-07-25, 16:00	#3
PrimeFun Jul 2003 11110₂ Posts	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...

2003-07-25, 16:14	#4
eepiccolo Dec 2002 Frederick County, MD 101110010₂ Posts	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

2003-07-25, 17:36	#5
dswanson Aug 2002 200₁₀ Posts	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.

2003-07-25, 20:37	#6
outlnder Aug 2002 476₈ Posts	You guys know that you probably just confused the hell out of the poor guy.

2003-07-25, 23:37	#7
dswanson Aug 2002 2³×5² Posts	... and we didn't even get into ECM yet! :D

2003-07-26, 04:35	#8
kwstone Jun 2003 Shanghai, China 109 Posts	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?