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-   -   Sieving drive for k=1003-2000 n=500K-1M (https://www.mersenneforum.org/showthread.php?t=11487)

gd_barnes 2009-02-13 22:43

[quote=MyDogBuster;162590]Gary, I did a test run om my old AMD Quad. Doing 500G per core gives me an estimate of Apr 26 to do 2T. Does this sound about right. Thats 74 days to do 2T on 1 machine. Your doing 1T in 15 days. Using SR2Sieve 1.7.15, the same program I used for the last sieve effort.

OBTW, Reserving 4000G to 6000G[/quote]


No. I'm doing P=250G per core in 15-16 days (i.e. 1T per quad). You're doing P=500G per core in 74 days (i.e 2T on a quad). If it was the same speed as mine, it shoudl take you 30-32 days per core. Hold old is your quad. Although I'm using 2.4 Ghz Intel's, the AMD's should be nearly as fast for sieving. Are you running 64-bit sr2sieve on a 64-bit O.S.? Since it's an older AMD, I would almost exactly twice that speed, i.e. P=500G per core in 37 days.

Are you reserving 74 days work? If so, I'd prefer if people only reserve about 2 weeks worth of work at a time. I'm requesting that in case we have a "heavy player" come along who swoops up and is able to complete everything to P=~15T in 2-3 weeks. We don't straggling ranges holding us up at that point.

On another note, Chris, are you reserving any sieving work? I couldn't tell by your long commentary here.


Gary

MyDogBuster 2009-02-13 22:58

[quote]Are you reserving 74 days work? If so, I'd prefer if people only reserve about 2 weeks worth of work at a time. I'm requesting that in case we have a "heavy player" come along who swoops up and is able to complete everything to P=~15T in 2-3 weeks. We don't straggling ranges holding us up at that point.
[/quote]

This AMD quad has always been about twice as slow as my Intels. I even added 2gb (up to 5gb) of memory yesterday and it sped it up about about 5%. I'm trying to find a Bios replacement. It has to be the mobo thats holding it back.

I've already started the 74 days of work. Besides, this is the only machine I have available. After this batch, I'll reserve just 2 weeks worth. This machine would been ideal for that other sieveing effort we talked about a month ago.

PS: I checked, I have the 64bit SR2Sieve on a 64 bit machine.

gd_barnes 2009-02-13 23:07

[quote=MyDogBuster;162748]This AMD quad has always been about twice as slow as my Intels. I even added 2gb (up to 5gb) of memory yesterday and it sped it up about about 5%. I'm trying to find a Bios replacement. It has to be the mobo thats holding it back.

I've already started the 74 days of work. Besides, this is the only machine I have available. After this batch, I'll reserve just 2 weeks worth. This machine would been ideal for that other sieveing effort we talked about a month ago.

PS: I checked, I have the 64bit SR2Sieve on a 64 bit machine.[/quote]


OK, but it's on your hide if we're nearing the optimum sieve depth for n=500K-600K within about 45 days. (lol) With me reseving P=3T every 15-16 days, we'll progress fairly quickly.

Flatlander 2009-02-13 23:15

[quote=gd_barnes;162742]...
On another note, Chris, are you reserving any sieving work? I couldn't tell by [B]your long commentary here[/B].
Gary[/quote]

Oh, the irony! :grin:

I have a stability issue with Adobe Premiere Elements a.t.m. (finally treated myself :smile:) but should be able to reserve a range soon.

MyDogBuster 2009-02-13 23:36

[QUOTE]OK, but it's on your hide if we're nearing the optimum sieve depth for n=500K-600K within about 45 days. (lol) With me reseving P=3T every 15-16 days, we'll progress fairly quickly. [/QUOTE]

Well if that happens, then they can just concentrate on Drives 5,6,and 7 till the Advanced Molasses Device catches up.

gd_barnes 2009-02-15 12:34

[quote=Flatlander;162753]Oh, the irony! :grin:
[/quote]

Ha-ha-ha! Good one! BTW, what the world are pound shops? Are those like pawn shops like we have in the U.S. where people that need money can sell their stuff?

[quote=MyDogBuster;162754]Well if that happens, then they can just concentrate on Drives 5,6,and 7 till the Advanced Molasses Device catches up.[/quote]

Just as good a one! lol

Mini-Geek 2009-02-15 13:11

[quote=gd_barnes;162871]BTW, what the world are pound shops? Are those like pawn shops like we have in the U.S. where people that need money can sell their stuff?[/quote]
[QUOTE][B]pound shop[/B]
[I]noun[/I] [LIST=1][*](UK / Ireland) a shop selling household groceries, toys, gimmicks etc, that are typically priced at a pound each.[/LIST][/QUOTE]Considering the UK currency is called "pound", I equated it to a "dollar store", which is correct according to this definition. (but, obviously, priced at a pound instead of at a dollar)

Flatlander 2009-02-16 15:46

[FONT=monospace]Sieving 6000G-6250G.

Running on Windows 7 beta 64 bit @ 2.38GHz.

ETA 3th-4th March.:wink:

[/FONT][URL]http://www.poundland.com/pages/default.aspx[/URL]
:grin:
[FONT=monospace]



[/FONT]

gd_barnes 2009-02-20 05:37

[quote=MyDogBuster;162754]Well if that happens, then they can just concentrate on Drives 5,6,and 7 till the Advanced Molasses Device catches up.[/quote]


Ian,

Could I talk you into halving your ranges on each core while I'll pick up the remainder of each starting on Feb. 26th or so?

I know it sounds a little messy but it shouldn't be. Just let me know what ranges you won't be doing and I'll load one of my 3 quads up with those ranges after my current P=1T-4T range is done on the above date. Assuming that we do that, I'll reserve only a P=2T range instead for the other 2 quads. Alternatively, I may add a 4th quad to the effort. [If you do that, I'm assuming that you would give up P=4250G-4500G, 4750G-5000G, 5250G-5500G, & 5750G-6000G and will only process P=4000G-4250G, 4500G-4750G, 5000G-5250G, & 5500G-5750G.]

All you'll have to do is a Ctl-C to stop each and restart each with a new maximum P-range. Obviously the minimum range would remain the same. Sr2sieve will just start where it left off at.

By doing that, I think there will be a very good chance that we'll be close to ready by the end of March to break off n=500K-600K. I hate to stop the very prolific and popular k=1400-2000 range for too long.


Thanks,
Gary

MyDogBuster 2009-02-20 07:51

[QUOTE]I know it sounds a little messy but it shouldn't be. Just let me know what ranges you won't be doing and I'll load one of my 3 quads up with those ranges after my current P=1T-4T range is done on the above date. Assuming that we do that, I'll reserve only a P=2T range instead for the other 2 quads. Alternatively, I may add a 4th quad to the effort. [If you do that, I'm assuming that you would give up P=4250G-4500G, 4750G-5000G, 5250G-5500G, & 5750G-6000G and will only process P=4000G-4250G, 4500G-4750G, 5000G-5250G, & 5500G-5750G.][/QUOTE]

Done

I've restarted with half the ranges as stated by you above.

gd_barnes 2009-02-20 08:25

[quote=MyDogBuster;163345]Done

I've restarted with half the ranges as stated by you above.[/quote]

Great!

Brian has responded favorably to me requesting that he throw a quad at the sieving effort. I'll just suggest that he do these ranges.

Thanks!


Gary


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