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To see who has run the most tests without finding a prime!
I just passed 12K without finding a single one (yet, I hope). I have 2 P4's crunching 24/7 that run PG as their primary project, and a Core Duo that crunches PG a couple of hours a day.
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To see who has run the most tests without finding a prime!
I just passed 12K without finding a single one (yet, I hope). I have 2 P4's crunching 24/7 that run PG as their primary project, and a Core Duo that crunches PG a couple of hours a day.
Two days roughly since you posted this thread and no one has claimed a higher result total yet w/o finding a prime. Maybe you are indeed the unluckiest here ;^)
As you said though, you hit gold on HashClash so the electron Gods are getting even I guess. Do post back when you find your first prime. I had zero a month ago and now have 13 total with 8 "first find" Titans registered in my name so hang in there and crunch away....
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 pschoefer Volunteer developer
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Don't give up! I thought I won't ever find a prime, and then, one lucky afternoon, there it was! OK, I had not 12k but only 3,5k tests, but now I'm at 8,5k and still I have not found my second prime.
Happy Crunching and Good Luck!
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Hehe I'm not, but nearing 13K now for tests!
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Woot, 13K now and still moving along!
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Woot, 13K now and still moving along!
Keep it up.
BTW. How did you get that sig showing the WUs you were working on? |
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BTW. How did you get that sig showing the WUs you were working on?
Its a custom PHP script I wrote that runs off my home server.
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Cannot belive it!! Alphalaser got his 1st prime (hope it was an orginal and not a double check!)... this is a sign of the end of the world!!! :-)) |
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RytisVolunteer moderator
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It's not a doublecheck :)
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It's not a doublecheck :)
Congrats, AlphaLaser!!!!!!
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Wow, this idea really did work! Sweet, thanks everyone :P
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Wow, this idea really did work! Sweet, thanks everyone :P
It took a few days longer than for me at HashClash, but it did indeed work. Welcome to the Titan club!!!
Brian
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@AlphaLaser
Wow, you're still stuck on that single prime.... You have a very low percentage find ratio, in fact I could only find one other person with a lower ratio. I hope that means you will hit your lucky streak and pop a few primes up very shortly...
Another tip, you and Fornax should not plan on a Las Vegas trip any time soon, :^O
Rank Name Primes found Numbers tested Percentage of primes
113 AlphaLaser 1 16930 0.0059
117 Fornax [SPEG] 1 17128 0.0058
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@AlphaLaser
Wow, you're still stuck on that single prime.... You have a very low percentage find ratio, in fact I could only find one other person with a lower ratio.
I found lots of others with lower ratios.... zero... :) ........... like me :(
BoB
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I found lots of others with lower ratios.... zero... :) ........... like me :(
BoB
Bob, good point - I should have said that they have the lowest ratio of anyone that has found at least one prime. |
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pschoeferVolunteer developer
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Good Morning!
Regards from Mr. Unlucky #3:
120 pschoefer 1 14336 0.007 0 19,416.01
You Top-Finders should say Thank you to us...
If we didn't crunch that many non-prime tests, you would have to crunch them, too, and have lower ratios either. ;p
But maybe one of us will find the Twin, and that would be much better than only one prime, wouldn't it? ;)
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You Top-Finders should say Thank you to us...
If we didn't crunch that many non-prime tests, you would have to crunch them, too, and have lower ratios either. ;p
Thanks! :-P
For a top finder, I have a fairly low ratio. Not as low as you guys, but that is to be expected when I have crunched over 260,000 work units. If I had Beyond's ration (next in line for primes found) I would have 124 primes found, not 91. Infact, I had a major dry spell of not finding a prime for more than 1 week there (for me, that os dry, I usually get around 1 per day). I hope that changes.
Keep up the crunching, we would be nowhere near this amount of work completed if only a few were crunching.
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I was just looking at the list of top llr prime finders and one person had a percentage of 1.19 (near position 90)
How is that possible?
BoB
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I was just looking at the list of top llr prime finders and one person had a percentage of 1.19 (near position 90)
How is that possible?
BoB
Just pure luck. he should have bought himself a lottery ticket. As time goes on, that percentage will drop (assuming he does more tests). There is nothing he is doing to make it easier for him.
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I was just looking at the list of top llr prime finders and one person had a percentage of 1.19 (near position 90)
How is that possible?
BoB
Just pure luck. he should have bought himself a lottery ticket. As time goes on, that percentage will drop (assuming he does more tests). There is nothing he is doing to make it easier for him.
whoops I thought it meant 1.19 in decimal fraction meaning 119%.... then i pulled out the calculator.... ohhh... 1.19% in actuall percent.
My mistake... But still lucky son of a..... could of given me one of them... lol
BoB
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pschoeferVolunteer developer
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Congrats@Fornax! He got his second prime today...
Now AlphaLaser is the most unlucky LLR-Cruncher again...
129 AlphaLaser 1 17566 0.0057
And I'm on the second place:
133 pschoefer 1 15930 0.0063 :-/
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Congrats@Fornax! He got his second prime today...
Now AlphaLaser is the most unlucky LLR-Cruncher again...
129 AlphaLaser 1 17566 0.0057
And I'm on the second place:
133 pschoefer 1 15930 0.0063 :-/
Yep, I seem to have extreme unluckiness! Thats OK though, I think every test helps, even if it doesn't result in anything.
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pschoeferVolunteer developer
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Yep, I seem to have extreme unluckiness! Thats OK though, I think every test helps, even if it doesn't result in anything.
That's right.
Without our help the others would have to crunch our tests, so they'd have lower percentage...
btw: This weekend I might take over your "Mr Unlucky" title ;)
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pschoeferVolunteer developer
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108 AlphaLaser 2 18922 0.0106 9 30,116.76
Congrats to your second prime, AlphaLaser!
Now I am Mr Unlucky :-(
154 pschoefer 1 18443 0.0054 0 24,564.93
My one and only prime was after about 3600 tests, so I have about 15k tests without a prime now...
Those who haven't found one yet have no more than 7,5k tests now, so I claim the Most Tests Between Primes.
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Heck, it appears I've already found an additional 2 primes! I think they were both doublechecks. Now I can pass this crown to another person :)
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Now I am Mr Unlucky :-(
154 pschoefer 1 18443 0.0054 0 24,564.93
Don't worry, I'm closing in on you :(
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?SYNTAX ERROR
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pschoeferVolunteer developer
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Now I am Mr Unlucky :-(
154 pschoefer 1 18443 0.0054 0 24,564.93
Don't worry, I'm closing in on you :(
Finally, I got my second prime (waiting for the mail) :D
173 pschoefer 2 25375 0.0079 0 33,435.66
Still one of the lowest ratios, but at least they're no doublechecks.
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Finally, I got my second prime (waiting for the mail) :D
Congrats!
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?SYNTAX ERROR
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Hmmm. Apparently I did double-check the largest known Woodall, 1467763*2^1467763-1.
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Ok got my second prime, but according to primes.utm.edu:
The following warnings have been noted:
At the current rate that primes are being added to this list, the 100354 digit prime "18850829385*2^333333-1" will only be on the list for about 0 weeks.
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RytisVolunteer moderator
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It's a mistake; it's only considering length in digits, and there's a lot of primes of same length, therefore it thinks it's the same size as the last one in the list. Your prime should stay in for about half a year.
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I'm confused. Which tests are we looking at/counting? Do they all take the same crunch time?
When AlphaLaser originally posted, he had 12k tests, and about 20k in credits.
Today I have only 2,659 tests, and about 43k credits.
I am getting *way* less tests per credit. Wassup? Has something changed since March?
LLR TPS (n=195000) tests
Completed tests 150
Primes found 0
Percentage of tests resulting with a prime
LLR TPS (n=333333) tests
Completed tests 2032
Primes found 1
Percentage of tests resulting with a prime 0.0492
LLR Cullen tests
Completed tests 7
Primes found 0
Percentage of tests resulting with a prime
LLR Woodall tests
Completed tests 470
Primes found 0
Percentage of tests resulting with a prime
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Reno, NV
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I'm confused. Which tests are we looking at/counting? Do they all take the same crunch time?
When AlphaLaser originally posted, he had 12k tests, and about 20k in credits.
Today I have only 2,659 tests, and about 43k credits.
I am getting *way* less tests per credit. Wassup? Has something changed since March?
LLR TPS (n=195000) tests
Completed tests 150
Primes found 0
Percentage of tests resulting with a prime
LLR TPS (n=333333) tests
Completed tests 2032
Primes found 1
Percentage of tests resulting with a prime 0.0492
LLR Cullen tests
Completed tests 7
Primes found 0
Percentage of tests resulting with a prime
LLR Woodall tests
Completed tests 470
Primes found 0
Percentage of tests resulting with a prime
Yeah because we've started crunching Woodall and Cullen primes which are much larger than the TPS search, and therefore give more credit per test. |
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Have found 7 primes so far, 3 off which are reported in the Titan club
Completed tests 1
Primes found 0
Percentage of tests resulting with a prime
LLR TPS (n=333333) tests
Completed tests 23973
Primes found 7
Percentage of tests resulting with a prime 0.0292
LLR Cullen tests
Completed tests 253
Primes found 0
Percentage of tests resulting with a prime
LLR Woodall tests
Completed tests 358
Primes found 0
Percentage of tests resulting with a prime
Crunching on
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I'm confused. Which tests are we looking at/counting? Do they all take the same crunch time?
When AlphaLaser originally posted, he had 12k tests, and about 20k in credits.
Today I have only 2,659 tests, and about 43k credits.
I am getting *way* less tests per credit. Wassup? Has something changed since March?
LLR TPS (n=195000) tests
Completed tests 150
Primes found 0
Percentage of tests resulting with a prime
LLR TPS (n=333333) tests
Completed tests 2032
Primes found 1
Percentage of tests resulting with a prime 0.0492
LLR Cullen tests
Completed tests 7
Primes found 0
Percentage of tests resulting with a prime
LLR Woodall tests
Completed tests 470
Primes found 0
Percentage of tests resulting with a prime
Not only more credit per test for woodall/cullen but if you run primegen then those work units dont count as a test.
BoB
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Not only more credit per test for woodall/cullen but if you run primegen then those work units dont count as a test.
That's because an LLR workunit and a Primegen workunit are quite different. Primegen searches for big primes in a given range; it returns a bunch of them with each workunit. (What method it actually uses to find those primes, I have no idea.) The various LLR subprojects do tests of gigantic (i.e. much bigger than those searched for in Primegen) primes, all of similar, specialized forms. Each LLR workunit tests one particular number to see whether it is prime. After testing the number with a specialized algorithm, it returns to the server whether that number is prime or not. Depending on the size of the number being tested, though, the workunit may take more or less time. (More precisely, the length of the test depends on the n value of the number being tested. You can see where n fits into the number on the home page, where it lists the forms of the numbers being tested.) The n value of the numbers being tested in the TPS subproject remains constant--currently, at n=333333, and once that target is finished, at n=500000. Thus, TPS tests will take a generally consistent amount of time to run. The numbers being tested in the Cullen/Woodall subprojects, however, have highly variable n values, so the time it takes to complete a Cullen/Woodall test will increase somewhat rapidly over time. Thus, Cullen/Woodall tests take a lot more time to run than TPS tests do--so it's only natural that more credits should be given out for them than for TPS tests. Optimally, whatever subprojects your system is running, it should, overall, get the same amount of credit per hour of time your CPU has spent crunching--and crediting for the various subprojects has been carefully set up by the project admins so that this is so.
Long story short, overall, you're still getting the same amount of credit for a given amount of CPU time, for all subprojects. And the reason why Primegen don't show up on your account page as tests is because they're of a different nature.
The crediting can be exemplified by an analogy: Two cars get the exact same gas mileage. However, one car's gas tank is twice the size of the other's. You have to pay more to fill it up each time you go to the gas station, but you don't have to fill it up as often. It all evens out in the end. The reverse is true with the various subprojects here: You don't get credit given out to you as often, but when you do, you get more of it. In the end, it's all the same.
I hope this is helpful and that I explained things clearly and correctly.
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