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Old 2008-01-17, 00:28   #1
paulunderwood
 
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Default 4-5M Reservations

updated 5:55:56 AM, Tues, Sept 23, 2008

ALL DONE - PROJECT FINISHED

These mega-prime candidates have at least 1323327 decimal digits
They have been sieved for divisors less than 271.2 trillion
Here are 249 candidates contained in 4 input files ready for LLR testing

An average file of 58 candidates will take about three weeks to process on an average Pentium computer -- each number taking around 14 hours; 64-bit AMDs 15 hours per core; 2.4Ghz Core2Duo/Quad around 10 hours per core

The 321 Reservations System :
(0) Make ready your system, maybe by creating as many directories as the number of cores you want to use for this project
(1) Download and decompress the program LLR-3.7.1c (Linux or Windows)
(2) Choose a range from the list below that no one else has recently reserved further below
(3) Leave a message here to reserve your chosen range
(4) Download the corresponding input file(s) -- all done
(5) Run LLR with your new input file(s)
(6) When finished, email the results file(s) to paulunderwood@mindless.com
(7) To continue go back to step 2

(Alternatively to the above steps, just email me.)

Range of a 1000 n :: Candidates in file
4396000-4397000 :: 61
4397000-4398000 :: 60
4398000-4399000 :: 60
4399000-4400000 :: 68


Last fiddled with by paulunderwood on 2008-09-23 at 04:57
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Old 2008-05-30, 20:04   #2
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If you book out any of the remaining 4 files above, please ensure that you can complete them by the end of June.

You can always join PrimeGrid and crunch individual 321 numbers through the BOINC interface. Each will take about half a day and you might find a mega-prime

Last fiddled with by paulunderwood on 2008-05-30 at 20:16
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Old 2008-06-02, 18:17   #3
Lennart
 
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Default Reserving

4396000-4397000 :: 61
4397000-4398000 :: 60
4398000-4399000 :: 60
4399000-4400000 :: 68


I reserve the last 4 files.

/Lennart
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Old 2008-06-02, 18:29   #4
jrk
 
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Paul are you going to be adding more ranges?
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Old 2008-06-02, 18:37   #5
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Quote:
Originally Posted by jrk View Post
Paul are you going to be adding more ranges?
No! I might have a few sub-n=4M if James can not do those himself.

I hope we can get all sub-n=5 done by the end of June
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Old 2008-06-02, 21:04   #6
mdettweiler
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Quote:
Originally Posted by paulunderwood View Post
No! I might have a few sub-n=4M if James can not do those himself.

I hope we can get all sub-n=5 done by the end of June
Once all n<5M is done, and sieving for 5M+ is complete (or at least ready for 5M-6M to be broken off), will files in the 5M-6M range be made available for manual testing, too, or will it be PrimeGrid only?
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Old 2008-06-02, 21:07   #7
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Quote:
Originally Posted by Anonymous View Post
Once all n<5M is done, and sieving for 5M+ is complete (or at least ready for 5M-6M to be broken off), will files in the 5M-6M range be made available for manual testing, too, or will it be PrimeGrid only?
PrimeGrid only. PG are sieving n=5M-10M already. It will be up to them when they decide to release more (only on their server.)
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Old 2008-06-02, 21:38   #8
mdettweiler
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Quote:
Originally Posted by paulunderwood View Post
PrimeGrid only. PG are sieving n=5M-10M already. It will be up to them when they decide to release more (only on their server.)
Ah, I see. So, then, will the 321 project just die out, or will it pick a new k to work on? (Or maybe even a new base--such as 3*3^n-1?)
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Old 2008-06-02, 22:29   #9
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Quote:
Originally Posted by Anonymous View Post
Ah, I see. So, then, will the 321 project just die out, or will it pick a new k to work on? (Or maybe even a new base--such as 3*3^n-1?)
"321search" is near its end, but PG will carry on searching for primes of the form 3*2^n-1 in conjunction with 3*2^n+1. "321search" will not continue.

Last fiddled with by paulunderwood on 2008-06-02 at 22:29
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Old 2008-06-03, 01:25   #10
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Does PrimeGrid still assign double-checks at the same time as first-time tests? It was doing that a few months ago when I was checking it out.
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Old 2008-06-03, 01:30   #11
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As far as I know, yes. Double checking becomes more important with the bigger numbers because there are many helpers needed, some of whom might have defective hardware, and because general hardware failures can occur anyway.
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