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-   -   Sieving drive for k=1005-2000 n=200K-500K (https://www.mersenneforum.org/showthread.php?t=11204)

gd_barnes 2009-01-06 13:32

[quote=Mini-Geek;157166]Would it be a problem in processing my factors if I drop that new file into my sieving to speed it up? Also I recall that the file can be dropped in over the old one without having to restart sr2sieve, is that right or am I mistaken?[/quote]


On the first question, no problem at all.

On the second question, I'm not sure. I think Max knows. But it's no problem to stop your sieve using CTL-C because it will write a checkpoint file. Then after dropping the file in, you can restart it and it will start right where it left off.

But hold off a couple of hours. I think my sieving has just now completed the P=1.8T-3.4T range. I need to remotely check my machines. If so, I'll remove those factors too and post an even smaller file sieved to P=3.8T since Chris has also finsihed P=3.4T-3.8T.

BTW, your sieving speed will likely increase very little...I'm thinking < 3% even with mine and Chris's factors removed...just don't want you to be disappointed.


Gary

gd_barnes 2009-01-06 15:21

P=1800G-3400G is complete.

Now reserving the (presumably) final range of P=8800G-10000G for work on 2 quads.

Mini and all, I've now removed all factors up to P=3800G from the linked sieve file in the 1st post of this thread. Feel free to replace your file with the file now there to speed up sieving a little bit.

Right on track so far... :smile:


Gary

gd_barnes 2009-01-06 15:42

Moved posts related to the discussion of how to do primality testing on the n=50K-200K range to the new 9th drive thread.

mdettweiler 2009-01-06 16:09

[quote=gd_barnes;157172]On the first question, no problem at all.

On the second question, I'm not sure. I think Max knows. But it's no problem to stop your sieve using CTL-C because it will write a checkpoint file. Then after dropping the file in, you can restart it and it will start right where it left off.[/quote]
No, you have to restart sr2sieve in order for the change to take effect, since it loads the sieve file into memory when it first starts. But, as Gary said, if you stop it "nicely" with Ctrl-C, then it will pick up exactly where it left off when you restart it.

Mini-Geek 2009-01-06 16:52

[quote=mdettweiler;157193]No, you have to restart sr2sieve in order for the change to take effect, since it loads the sieve file into memory when it first starts. But, as Gary said, if you stop it "nicely" with Ctrl-C, then it will pick up exactly where it left off when you restart it.[/quote]
Ok. I stopped it with Ctrl+C and restarted it with the new files already.

MyDogBuster 2009-01-07 17:11

3800G - 4000G Complete

results emailed

nuggetprime 2009-01-10 09:58

8200G-8600G complete.9616 factors found. They will get mailed to Gary with in the next fifteen minutes.

nugget

Mini-Geek 2009-01-10 12:32

1 Attachment(s)
7100G-7200G complete. 2829 factors attached.

glennpat 2009-01-12 22:25

1 Attachment(s)
8600G-8800G complete. 4655 factors attached.

gd_barnes 2009-01-12 23:31

[quote=nuggetprime;157884]8200G-8600G complete.9616 factors found. They will get mailed to Gary with in the next fifteen minutes.

nugget[/quote]


Nugget,

I haven't received your factors. You can go ahead and post them here if you want.


Thanks,
Gary

gd_barnes 2009-01-12 23:43

Ian and David,

Can you give me an ETA on your sieving ranges?

My ETA:
5900G-7100G; late on Jan. 16th running on 1 quad
8800G-10000G; mid-day on Jan. 13th running on 2 quads

If I seem in a bit of a hurry, I am. :smile:

PrimeGrid and others are dumping so many n=400K-500K primes on top-5000 that n=352K is already in ~4950th place on top-5000. If we get started by Jan. 17th, we'll probably be fine but if we get started by Jan. 20th, n=352K may already be below 5000th place.


Gary


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