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

nuggetprime 2009-01-03 16:43

No,sr2sieve has a -t option to run multiple threads. With that option you can just use one instance/folder/command and still use the 4 cores of a quad. Normally this is slower than running 4 instances,but when the sievefile is big,it can be faster.

mdettweiler 2009-01-03 17:17

[quote=nuggetprime;156662]No,sr2sieve has a -t option to run multiple threads. With that option you can just use one instance/folder/command and still use the 4 cores of a quad. Normally this is slower than running 4 instances,but when the sievefile is big,it can be faster.[/quote]
Really? Hmm...I didn't know multithreading could be faster with a big sieve file.

The "care package" that I put together to get David started yesterday runs multiple instances using the -u switch--there are eight batch files in the sr2sieve folder, each with 1/8 of the total range.

MyDogBuster 2009-01-03 18:08

[QUOTE]3. I am planning on all of my ranges being done on Jan. 16th. If you can shoot for that date on your reserved ranges, that would be helpful.
[/QUOTE]

It'll be tight for me but I think I'll sneak in just at the wire (assuming no glitches). As I say that, one of my quads doing the sieving just re-booted all by itself.

glennpat 2009-01-04 14:36

I'll take 8600-8800G.

gd_barnes 2009-01-04 15:23

[quote=MyDogBuster;156674]It'll be tight for me but I think I'll sneak in just at the wire (assuming no glitches). As I say that, one of my quads doing the sieving just re-booted all by itself.[/quote]


If you're in by Jan. 20th, we're good. Thanks for helping! :smile:

mdettweiler 2009-01-04 22:08

1 Attachment(s)
5850G-5900G is complete; factors are attached. :smile:

gd_barnes 2009-01-05 02:18

[quote=MyDogBuster;156674]It'll be tight for me but I think I'll sneak in just at the wire (assuming no glitches). As I say that, one of my quads doing the sieving just re-booted all by itself.[/quote]


Just a note: I am still assuming that you will be done with the P=1.4T-1.8T range here in the next day or two, which is what I think you had previously said. Is that correct?

I'll get the n=50K-200K portion of the 9th drive started when you're done.


Thanks,
Gary

MyDogBuster 2009-01-05 03:15

[QUOTE]Just a note: I am still assuming that you will be done with the P=1.4T-1.8T range here in the next day or two, which is what I think you had previously said. Is that correct?
[/QUOTE]

Still on schedule. Sometime tomorrow evening.

MyDogBuster 2009-01-05 21:16

1400G - 1800G complete

results emailed

gd_barnes 2009-01-06 02:37

I have now removed P=1.4T-1.8T factors from the file link in the 1st post of this thread. 80000+ factors total.

My sieving for P=1.8T-3.4T should be done by morning so I'll have a lot more factors to remove at that point. :smile:


Gary

Mini-Geek 2009-01-06 12:51

[quote=gd_barnes;157107]I have now removed P=1.4T-1.8T factors from the file link in the 1st post of this thread. 80000+ factors total.[/quote]
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?


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