A long dry spell

Chuck · 2011-12-22, 17:18

It's sure been a long time since I found a non P-1 factor; I looked back through my results on PrimeNet and the last one I found was on December 10. However, nothing can be done other than to keep searching.

diamonddave · 2011-12-22, 18:05

Quote:

Originally Posted by Chuck

It's sure been a long time since I found a non P-1 factor; I looked back through my results on PrimeNet and the last one I found was on December 10. However, nothing can be done other than to keep searching.

Me it's the contrary, I just finished my P-1 dry spell... You found 7 factors in 116 attempts, I found 1 in 85!

davieddy · 2011-12-22, 20:38

Sigh

Dubslow · 2011-12-23, 03:34

I found 2 P-1 back to back factors, which at the time, point me at like 2/5. At the same time I had ~150 exponents run 3 bit levels, so like ~450 bit levels, with one factor.

petrw1 · 2011-12-23, 03:54

Well right now (if I am reading the charts right) the entire GPU project is:
P-1 = 117/2331 = 5%
LL-TF 410/38,477 = 1% (Counting each bit level total seperatly)
DC-TF = 125 / 12246 = 1% (Ditto)

Curious because the GIMPS Math page says it should be about 1.4% (1/69 to 1/72)

nucleon · 2011-12-23, 04:42

For tf via mfaktc, I find I need to reboot the PC at least once per week.

-- Craig

LaurV · 2011-12-23, 04:55

Quote:

Originally Posted by petrw1

Well right now (if I am reading the charts right) the entire GPU project is:
P-1 = 117/2331 = 5%
LL-TF 410/38,477 = 1% (Counting each bit level total seperatly)
DC-TF = 125 / 12246 = 1% (Ditto)

Curious because the GIMPS Math page says it should be about 1.4% (1/69 to 1/72)

DC-TF assigned expos had lots of P-1 done on them (they are filtered already, we get assignments only from the bunch of the expos that survived P-1 testing to some limits). This is valid also for a part of LL-TF. And you should consider that not all users do all range 69-72. Mostly do 69-70, for example. So, nothing seems so curious.

Chuck · 2011-12-23, 22:56

Quote:

Originally Posted by nucleon

For tf via mfaktc, I find I need to reboot the PC at least once per week.

-- Craig

What causes you to need a weekly reboot? I have never had any issues with mfaktc. The only problem I have ever encountered is with new Nvidia drivers that like to downclock; then I have to reboot to get back to full speed. But that hasn't happened for some time.

oswald · 2011-12-23, 23:27

Chuck,

I finally got around that down clocking by using nvidia inspector.

Right click on the show overclocking drop down and pick "Start Multi Display Power Saver." It is kind of a miss nomer for my use.

Now check off

run at windows startup
pick your gpu
select P0 for application that you select and/or P0 by CPU %usage.

If it's not happening anymore, well skip this post.

Roy

ixfd64 · 2011-12-24, 01:44

On the subject of dry spells, we haven't discovered a new Mersenne prime in ages...

Dubslow · 2011-12-24, 02:14

Quote:

Originally Posted by ixfd64

On the subject of dry spells, we haven't discovered a new Mersenne prime in ages...

2011-12-22, 17:18	#1
Chuck May 2011 Orange Park, FL 3×5×59 Posts	A long dry spell It's sure been a long time since I found a non P-1 factor; I looked back through my results on PrimeNet and the last one I found was on December 10. However, nothing can be done other than to keep searching.

2011-12-22, 20:38	#3
davieddy "Lucan" Dec 2006 England 2·3·13·83 Posts	More gamblers Sigh

2011-12-23, 23:27	#9
oswald Apr 2011 in vivo 75₁₀ Posts	Chuck, I finally got around that down clocking by using nvidia inspector. Right click on the show overclocking drop down and pick "Start Multi Display Power Saver." It is kind of a miss nomer for my use. Now check off run at windows startup pick your gpu select P0 for application that you select and/or P0 by CPU %usage. If it's not happening anymore, well skip this post. Roy

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2011-12-23, 03:34	#4
Dubslow Basketry That Evening! "Bunslow the Bold" Jun 2011 40<A<43 -89<O<-88 7221₁₀ Posts	I found 2 P-1 back to back factors, which at the time, point me at like 2/5. At the same time I had ~150 exponents run 3 bit levels, so like ~450 bit levels, with one factor.

2011-12-23, 03:54	#5
petrw1 1976 Toyota Corona years forever! "Wayne" Nov 2006 Saskatchewan, Canada 2²·7·167 Posts	Well right now (if I am reading the charts right) the entire GPU project is: P-1 = 117/2331 = 5% LL-TF 410/38,477 = 1% (Counting each bit level total seperatly) DC-TF = 125 / 12246 = 1% (Ditto) Curious because the GIMPS Math page says it should be about 1.4% (1/69 to 1/72)

2011-12-23, 04:42	#6
nucleon Mar 2003 Melbourne 5·103 Posts	For tf via mfaktc, I find I need to reboot the PC at least once per week. -- Craig

2011-12-24, 01:44	#10
ixfd64 Bemusing Prompter "Danny" Dec 2002 California 2×5×239 Posts	On the subject of dry spells, we haven't discovered a new Mersenne prime in ages...