FactorOverride

2011-09-03, 07:30

I do not see FactorOverride in the latest Prime95. How do I use Prime95 to trial factor an exponent beyond the default bit depth? Thanks.

Mini-Geek · 2011-09-03, 11:12

To TF beyond the default depth, you can add a Factor line to worktodo.txt manually. The format is:

Code:

Factor=exponent,how_far_factored,how_far_to_factor_to

e.g.

Code:

Factor=43112609,68,70

To do this, first stop and close Prime95, then edit the worktodo.txt file, then start Prime95 again.
I don't know of a way to make all numbers, current and future, be TFd farther than the default automatically (i.e. what FactorOverride did).

Christenson · 2011-09-03, 15:46

There are two other, possibly more effective ways of making sure your currently-favoite exponent gets a relatively deep TF before you LL test it:
1) Buy a GPU, and run mfaktc or possibly mfakto (See tHardware forum, GPU subforum). GPUs substantially outperform CPU (by 10x to 100x) on TF work.
2) Ask me to do the TF in thie fora here or by PM. I've done it twice for user Davieddy. I can usually start in 48 hours or less.

In all cases, enjoy yourself.

2011-09-03, 07:30	#1
Unregistered 4304₈ Posts	FactorOverride I do not see FactorOverride in the latest Prime95. How do I use Prime95 to trial factor an exponent beyond the default bit depth? Thanks.

2011-09-03, 11:12	#2
Mini-Geek Account Deleted "Tim Sorbera" Aug 2006 San Antonio, TX USA 10AB₁₆ Posts	To TF beyond the default depth, you can add a Factor line to worktodo.txt manually. The format is: Code: Factor=exponent,how_far_factored,how_far_to_factor_to e.g. Code: Factor=43112609,68,70 To do this, first stop and close Prime95, then edit the worktodo.txt file, then start Prime95 again. I don't know of a way to make all numbers, current and future, be TFd farther than the default automatically (i.e. what FactorOverride did). Last fiddled with by Mini-Geek on 2011-09-03 at 11:17

2011-09-03, 15:46	#3
Christenson Dec 2010 Monticello 703₁₆ Posts	There are two other, possibly more effective ways of making sure your currently-favoite exponent gets a relatively deep TF before you LL test it: 1) Buy a GPU, and run mfaktc or possibly mfakto (See tHardware forum, GPU subforum). GPUs substantially outperform CPU (by 10x to 100x) on TF work. 2) Ask me to do the TF in thie fora here or by PM. I've done it twice for user Davieddy. I can usually start in 48 hours or less. In all cases, enjoy yourself.