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-   -   Alternative Sieving for 10M digit prime search (https://www.mersenneforum.org/showthread.php?t=6514)

ValerieVonck 2007-04-28 07:59

Citrix,

Can you update the first line of the line with the correct value?
Sr1sieve crashes.

Citrix 2007-04-28 08:12

Use the following command line to sieve from 9 to 10T

srsieve -i 3_16data.txt -o 3_16data.txt -f 3_16factors.txt --pmin 9000000000000 --pmax 100000000000 --verbose


You can copy the pmin number, instead of the large number in the beginning.

Your 8-9T range had 115 factors for the new dat file. How long does it take you to sieve a range of 1T and on what CPU?

em99010pepe 2007-04-28 08:18

About my range...the first 780G were sieved using the 10M dat file, the rest is going to be sieved with the 4M dat file.

Carlos

Citrix 2007-04-28 08:21

[QUOTE=em99010pepe;104797]About my range...the first 780G were sieved using the 10M dat file, the rest is going to be sieved with the 4M dat file.

Carlos[/QUOTE]

Just send me all the factors once you are done. So does everyone involved agree that we need not concern ourselves with sieving beyond 4M for right now?

em99010pepe 2007-04-28 08:27

[quote=Citrix;104798]Just send me all the factors once you are done. So does everyone involved agree that we need not concern ourselves with sieving beyond 4M for right now?[/quote]

Please send me a PM with your email address. Meanwhile with the new dat file I can sieve on an AMD 64 3000+ (2GHz) 2.6T/day.

Carlos

ValerieVonck 2007-04-28 08:43

Once my 9T-10T is done I will restart from 0 with the new dat file.
This would serve as double check.

Everybody agree that we re-start the sieve?

Arguments for re-starting: it is a new dat file.

Regards
Cedric

Citrix 2007-04-28 08:58

[QUOTE=CedricVonck;104802]Once my 9T-10T is done I will restart from 0 with the new dat file.
This would serve as double check.

Everybody agree that we re-start the sieve?

Arguments for re-starting: it is a new dat file.

Regards
Cedric[/QUOTE]

I disagree. It is not a new dat file. I just took out the n values greater than 4M from the old dat file. So I don't see the need to redo the work.

I think it should be safe to start LLR etc, once we have sieved to 5000T.

em99010pepe 2007-04-28 08:59

Reserving 15T to 20T.

Carlos

ValerieVonck 2007-04-28 09:10

Already reserving 20T - 21T with the new dat file.

ValerieVonck 2007-04-29 16:09

Reserving 20T => 25T
I am averaging 16M/kps on a P4 2.4 Ghz.
L1 : 8k
L2: 512.

Thank you

Citrix 2007-04-29 17:30

[QUOTE=CedricVonck;104869]Reserving 20T => 25T
I am averaging 16M/kps on a P4 2.4 Ghz.
L1 : 8k
L2: 512.

Thank you[/QUOTE]


I am averaging 16M/kps on a Celeron 1.4 Ghz.
L1 : 32k
L2: 1024.

I think the clock speed of p4 makes no difference to the speed of the sieve. I will try running 2 instances together and see what speeds I get and try running LLR with srsieve to see if that is more productive.


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