Reserved for MF - Sequence 4788 - Page 36

henryzz · 2009-08-16, 18:27

Quote:

Originally Posted by frmky

Ok, I confess. I put it on the cluster to see where it would get overnight. The C117 GNFS took less than an hour, but since you were well into completing it yourself I couldn't bear to submit it.

Of course it got stuck on the C145. Overnight, the C145 survived 4500 curves at B1=3M. It automatically started the GNFS. If you want to do it as a team effort, I'll stop. Otherwise, I'll finish it by tomorrow.

As you have started it feel free to finish. Do you have a way of stopping it before it starts a large gnfs in the future(and putting on replacement work) when you are not around?

frmky · 2009-08-16, 18:39

Quote:

Originally Posted by henryzz

Do you have a way of stopping it before it starts a large gnfs in the future(and putting on replacement work) when you are not around?

Sure, just not start it.

unconnected · 2009-08-16, 20:04

Running 2000 curves @ 11e6 on C145 - no factors found.

jrk · 2009-08-17, 01:01

Quote:

Originally Posted by frmky

Otherwise, I'll finish it by tomorrow.

You can do a c145 in one day? How big is the cluster?

frmky · 2009-08-17, 04:54

It's actually quite small and simple, as clusters go. It has 10 compute nodes, each with a 2.4 GHz Core 2 Quad. The grad students got a $5000 intramural grant and built it as a side project a while back. To fit it in budget, the nodes each have 4 GB memory, are diskless, and are connected by GigE.

frmky · 2009-08-17, 18:44

Argh! It'll take another day. Another user started a process on the cluster which did the service of killing mine. As a result, my simpleton aliquot sequence program thought the results were corrupt, deleted all relations, and stopped. I've gotta teach it to delete things ONLY if the results were successful. Anyway, I'm restarting it outside of the aliquot sequence software with higher priority.

jrk · 2009-08-19, 03:15

Quote:

Originally Posted by frmky

Argh! It'll take another day.

Was it successful today?

frmky · 2009-08-20, 06:34

Sorry for the delay. I'm more used to SNFS factorizations, so underestimated the number of relations needed. I also made qintsize too small. These two coupled together meant that it spent an enormous amount of time running the filtering over and over again, only to discover that there still weren't enough relations, then sieving a little more. Anyway, the linear algebra is running now, and the factors should be waiting when I get up tomorrow.

frmky · 2009-08-20, 16:55

prp49 factor: 9266455924974821009747268979716027836786642121659
prp96 factor: 454366919081653863050546934138139744806404198082970702649005540616077748580934679066082175220009

This bring it to step 2435 with a C155. I'm running ECM curves now up to B1=3M. Feel free to join in.

jrk · 2009-08-20, 17:58

Quote:

Originally Posted by frmky

prp49 factor: 9266455924974821009747268979716027836786642121659
prp96 factor: 454366919081653863050546934138139744806404198082970702649005540616077748580934679066082175220009

This bring it to step 2435 with a C155. I'm running ECM curves now up to B1=3M. Feel free to join in.

Nice.

Now the seq is on step 2436 with a c131.

frmky · 2009-08-21, 03:27

I've done 4000 curves at B1=11M on the current C132. I'm moving on to other projects, so all y'all can take over from here.

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2009-08-16, 20:04	#388
unconnected May 2009 Russia, Moscow 2,593 Posts	Running 2000 curves @ 11e6 on C145 - no factors found.

2009-08-17, 04:54	#390
frmky Jul 2003 So Cal 2⁴·7·19 Posts	It's actually quite small and simple, as clusters go. It has 10 compute nodes, each with a 2.4 GHz Core 2 Quad. The grad students got a $5000 intramural grant and built it as a side project a while back. To fit it in budget, the nodes each have 4 GB memory, are diskless, and are connected by GigE.

2009-08-17, 18:44	#391
frmky Jul 2003 So Cal 850₁₆ Posts	Argh! It'll take another day. Another user started a process on the cluster which did the service of killing mine. As a result, my simpleton aliquot sequence program thought the results were corrupt, deleted all relations, and stopped. I've gotta teach it to delete things ONLY if the results were successful. Anyway, I'm restarting it outside of the aliquot sequence software with higher priority.

2009-08-20, 06:34	#393
frmky Jul 2003 So Cal 4120₈ Posts	Sorry for the delay. I'm more used to SNFS factorizations, so underestimated the number of relations needed. I also made qintsize too small. These two coupled together meant that it spent an enormous amount of time running the filtering over and over again, only to discover that there still weren't enough relations, then sieving a little more. Anyway, the linear algebra is running now, and the factors should be waiting when I get up tomorrow.

2009-08-20, 16:55	#394
frmky Jul 2003 So Cal 2⁴×7×19 Posts	prp49 factor: 9266455924974821009747268979716027836786642121659 prp96 factor: 454366919081653863050546934138139744806404198082970702649005540616077748580934679066082175220009 This bring it to step 2435 with a C155. I'm running ECM curves now up to B1=3M. Feel free to join in.

2009-08-21, 03:27	#396
frmky Jul 2003 So Cal 2⁴·7·19 Posts	I've done 4000 curves at B1=11M on the current C132. I'm moving on to other projects, so all y'all can take over from here.