Prime95 v24.14 P-1 Factoring problem

harlee · 2006-12-19, 21:53

Does anyone know if there is a known bug doing P-1 Factoring with Prime95 v24.14? Please see http://mersenneforum.org/showthread.php?t=6799 for more details. thanks.

Prime95 · 2006-12-19, 22:19

I vaguely remember fixing a bug in the code that updates the pfactor line in worktodo.ini.

The "fix" for you is to make your worktodo.ini look ilke this:

Pfactor=exponent,68,0

Even though the exponent is only factored to 2^65. This will skip trial factoring to 2^68. While this sounds less than optimal - it actually may result in higher GIMPS thoughput.

2006-12-19, 21:53	#1
harlee Sep 2006 Odenton, MD, USA 191 Posts	Prime95 v24.14 P-1 Factoring problem Does anyone know if there is a known bug doing P-1 Factoring with Prime95 v24.14? Please see http://mersenneforum.org/showthread.php?t=6799 for more details. thanks. Last fiddled with by harlee on 2006-12-19 at 21:54

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2006-12-19, 22:19	#2
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 41×199 Posts	I vaguely remember fixing a bug in the code that updates the pfactor line in worktodo.ini. The "fix" for you is to make your worktodo.ini look ilke this: Pfactor=exponent,68,0 Even though the exponent is only factored to 2^65. This will skip trial factoring to 2^68. While this sounds less than optimal - it actually may result in higher GIMPS thoughput.