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Old 2015-01-29, 10:28   #12
xilman
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Quote:
Originally Posted by fivemack View Post
I've put the two mentioned OPN numbers on; it would be good if xilman or someone could put up some more GCW, otherwise the queue will drain quite fast.

I had a look at GC_11_239, but it's too big for 14e.
Yeah, I know, I'm falling behind. Rob Hooft is also asking for more work.

Although I now have admin access to the NFS@Home site I'm a bit wary of putting stuff there and screwing up ...
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Old 2015-01-29, 10:48   #13
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Paul,

Look on how the queue work was inserted on lasievee application and do the same for lasieved, I suppose.

Carlos
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Old 2015-01-29, 11:18   #14
fivemack
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Default It's not that easy to break nfs@home

I too was very worried about screwing things up, but it's not as terrifying as it looks. If I took a polynomial file that runs fine on your local gnfs-lasieve4Ixxe, and just copy-and-paste it into the box, it ran fine on the grid.

A non-obvious thing (and probably not relevant if you're launching GCW SNFS jobs) is that you have to put 'lss: 0' (abbreviation for 'lattice sieve side', I think) in the file to force algebraic-side sieving.
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Old 2015-01-29, 13:34   #15
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Quote:
Originally Posted by fivemack View Post
I too was very worried about screwing things up, but it's not as terrifying as it looks. If I took a polynomial file that runs fine on your local gnfs-lasieve4Ixxe, and just copy-and-paste it into the box, it ran fine on the grid.

A non-obvious thing (and probably not relevant if you're launching GCW SNFS jobs) is that you have to put 'lss: 0' (abbreviation for 'lattice sieve side', I think) in the file to force algebraic-side sieving.
OK, I put Cullen(785).c234 polynomial file and a snippet from a factMsieve.pl job file into the management page and took a guess for what the other boxes should contain. The one most likely to be seriously wrong is the maximum special-q. My experience is that it should be around 80M but other numbers queued run to 150M or more.

Could you (or anyone else with management powers reading this) check that I've not screwed up too badly. If all is well I'll add another dozen or two candidates.

Paul
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Old 2015-01-29, 15:26   #16
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Quote:
Originally Posted by xilman View Post
OK, I put Cullen(785).c234 polynomial file and a snippet from a factMsieve.pl job file into the management page and took a guess for what the other boxes should contain. The one most likely to be seriously wrong is the maximum special-q. My experience is that it should be around 80M but other numbers queued run to 150M or more.

Could you (or anyone else with management powers reading this) check that I've not screwed up too badly. If all is well I'll add another dozen or two candidates.

Paul
I checked it and submitted it to the cloud. I would recommend in future submitting quite a low maximum special-Q and seeing what the tool recommends as max-Q after a bit of sieving (it just picks a level that gives 220M or so relations). A trial run of 10k @ 70M gives yield about 1.0, so I suspect you are in fact doing exactly that.
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Old 2015-01-29, 21:49   #17
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Quote:
Originally Posted by xilman View Post
Yeah, I know, I'm falling behind. Rob Hooft is also asking for more work.

Although I now have admin access to the NFS@Home site I'm a bit wary of putting stuff there and screwing up ...
The project is a hungry beast!

Don't worry too much about messing things up. It certainly won't be the first time, and it's not too difficult to delete a number and cancel all the workunits.

Edit: BTW, I just queued a batch of GCW's I had sitting here.

Edit 2: Sorry Tom, I just screwed up your threshold test! I was adjusting ranges and didn't see your note until after they were generated. I moved the relations thus far (all but about 100 wu's) to a separate file obviously named.

Last fiddled with by frmky on 2015-01-29 at 22:36
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Old 2015-01-30, 00:12   #18
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I've moved the threshold test straight to 'queue for post-processing', which I hope means it won't get any more relations queued; I'll let the queue drain and do an analysis. At the moment I'm really quite confident that 14e, 32-bit LP and 340M-ish relations is the way to go for C16x / low C17x.
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Old 2015-01-30, 03:09   #19
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Quote:
Originally Posted by frmky View Post
Edit: BTW, I just queued a batch of GCW's I had sitting here.
Careful: C_2_785 appears to be in the queue twice. You've re-added the one I used as my first attempt. I was making a start on the batch already sent in because I knew those had been pre-tested by Rob.

Last fiddled with by wblipp on 2015-02-02 at 02:34 Reason: fix quote
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Old 2015-01-30, 08:02   #20
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Quote:
Originally Posted by xilman View Post
Quote:
Originally Posted by frmky View Post
Edit: BTW, I just queued a batch of GCW's I had sitting here.
Careful: C_2_785 appears to be in the queue twice. You've re-added the one I used as my first attempt. I was making a start on the batch already sent in because I knew those had been pre-tested by Rob.
Deleted the one I added. Thanks.

Last fiddled with by wblipp on 2015-02-02 at 02:35
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Old 2015-02-02, 02:39   #21
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Here are some numbers from OddPerfect that have had ECM to 2/9 the SNFS size and are not being worked on by anyone. Feel free to use them as stop gap queue stuffers when needed.

Too big? I don't see anything better than quartic
227^125-1 C227 x^4+x^3+x^2+x+1 is SNFS 236
241^125-1 C224 x^4+x^3+x^2+x+1 is SNFS 239

Reasonable?
4943^67-1 C212 4943x^6-1 is SNFS 248
4993^67-1 C245 4993x^6-1 is SNFS 248
139^133-1 C211 x^6+x^5+x^4+x^3+x^2+x+1 is SNFS 245
5297^67-1 C211 5297x^6-1 is SNFS 246
5347^67-1 C211 5347x^6-1 is SNFS 247

Too Small?
5443^59-1 C172 x^6-5443 and x^5-5443 are C225
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Old 2015-02-18, 16:50   #22
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Will you want to factor 5443^59-1? If not I'll happily factor it (I need something to run SNFS against while waiting for ECM to T50 on 13513^53-1 to finish).

Chris
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