321 Manual Sieve is Complete and Closed

321 Sieve has been moved to BOINC. Thank you to all who participated!!!

This is the reservation thread for the 321 Prime Search sieving. This is a combined sieve of 3*2^n+-1 for 5M<n<25M. Before reserving a range, please visit the Welcome thread for instructions and to download the setup files. NOTE: Manual BOINC cobblestones are available for this sieve. Also, this sieve is best suited for 64 bit OS machines.

321comb5M-25M_230TE2.zip is the current sieve file and can be found here: Sieve file.
sr2sieve 1.8.2 is the current version we are using and can be downloaded here: sr2sieve Sieve Software
The factor upload folder is located here: Factor Upload

To reserve a range, simply post in this thread the range you wish to reserve, using the following format for your message: Reserving Range Username. For example: Reserving 0T-25T Lennart

321 5M<n<25M
000T-2001T 321 Sieving Archive

Currently Closed

Updating sieve file
Download and unzip the new sieve file. Stop sr2sieve. Edit command-line.txt file to new sieve file name. Restart sr2sieve.

Multicore systems
Please visit the Welcome thread for special instructions on how to easily utilize all cores.

Process Priority Switch
Default is not to change process priority.
-zz sets lowest priority (nice 20, Low)
-z sets low priority (nice 10, Below Normal)
-Z sets high priority (nice -10, Above Normal)
-ZZ sets highest priority (nice -20, High)

Sample Rates
popandbob - 2,000,000p/s to 2,170,000p/s on a Q6600 @ 3.0GHz, OS?, 1 core
Puzzle-Peter - 2,350,000 p/s on a Q9300 @ 2.7GHz, Xubuntu64, 1 core
pschoefer - 2,760,000 p/s on a Q9450 @ 3,2GHz, Win XP x64, 1 core
Lennart - 30-40hr/1T on a C2Q @ 2,4GHz, Linux 64, -t4 switch 4 core
Lennart - ~120-160hr/1T on a C2Q @ 2,4GHz, Linux 64, 1 core

Review other reservation posts before selecting a range. Also, check to make sure you have the latest sieve file.

To keep the thread organized, reservation posts will be deleted as updated.
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98T-100T completed, 1306 factors, ~560 sec/factor

Because I had no internet connection during last 4 days, I needed some more work and just did 198.5T-200T (487 factors, ~1113,08 sec/factor).

Q9450 @ 3,2GHz, Win XP x64 does about 2,760,000 p/s.

ATTENTION!!!

All who have outstanding ranges, please report progress. We are transitioning to 5M+ for 321 LLR and will be pulling from this sieve file now. We'd like to be complete to 2P ASAP.

We are happy to help out in completing any ranges. Sorry for the short notice.
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Hi,

1300 - 1303 | 1302601295728939 | 1914490 p/sec ~ 86.7%
1303 - 1305 | 1304158509733799 | 1868226 p/sec ~ 57.9%

If my PC was left on constantly these would finish on the 15th & 18th.

You can help if you wish as I rather wouldnt wan't my computer to be constantly on, but it's up to you if you want to wait. I will try and keep my PC running as much as possible.

Ta!

231-235 will be finished tomorrow.

The 10 subranges for 1901-2001 are at ~50% each. I'll be in Switzerland from 14th to 21st, that means no sieving. When I stay on the opterons, these ranges will go on until march 10th or so. I can switch to faster machines when I'm back, but even then it will be end of february. Maybe a bit faster if I subdivide the ranges and use more machines.

If you'd prefer me to send back what I've got so you can finish these ranges, please let me know quickly as tomorrow is the last day I have access to those machines.

Regards, Peter
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There are only 10 kinds of people - those who understand binary and those who don't

231T-235T COMPLETE

1901T-2001T I uploaded what I had so far. 10 ranges, all at ~45%. To avoid confusion, each factor file has the checkpoint file icluded as its first line.
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There are only 10 kinds of people - those who understand binary and those who don't

I am about 64% with my reservation (the first of the list)
I will put it on my 2,5Ghz quad-core tomorrow so it will be finished by sunday (I hope).
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1300T-1304500000000000 Stephen Brown COMPLETE - 200 Factors
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I cannot report it today (only 80,8% at the moment) but I'll definately report it this week. 7 hours to go (with the -t4 option), but if I am not around I turn my computer off.
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230T-231T Ward De Ridder COMPLETE 246 factors
I can't tell you anything about the time becouse I used 3 different computers (and on 1 computer 2 operating systems).
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Question, would it be possible to have the 321 sieves that we did here added to the 321 sieve part in "Your Account" page please, it only seams fair as we did our part and it would be nice to have it shown in the numbers there. Thank you

John M. Johnson
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John M. Johnson "Novex"

I have no idea how a BOINC WU relates to our manual ranges. Maybe there isn't even a fixed ratio. Haven't even done any of the BOINC ones so far *lol*

Adding the factors found by a user to his "hit count" shouldn't be too hard. It would be nice, no question. It's probably a rather low priority topic though.
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There are only 10 kinds of people - those who understand binary and those who don't