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Forum: Operation Kibibit 2013-09-03, 22:08
Replies: 134
Views: 44,878
Posted By jasonp
We don't know how to do that at all, so it's not...

We don't know how to do that at all, so it's not just a matter of code.
Forum: Operation Kibibit 2013-02-18, 21:04
Replies: 134
Views: 44,878
Posted By jasonp
Dubslow, not too sure; the choice of smaller...

Dubslow, not too sure; the choice of smaller leading rational coefficients is a code issue for Msieve, as these are always made as large as possible due to estimate by Thorsten Kleinjung in his 2006...
Forum: Operation Kibibit 2013-02-17, 15:51
Replies: 134
Views: 44,878
Posted By jasonp
I haven't looked at the patch, and have no doubt...

I haven't looked at the patch, and have no doubt it would work fine, but a year is too long to put off a major release, and everyone has been kind enough to pound on the current code pretty...
Forum: Operation Kibibit 2013-02-17, 12:52
Replies: 134
Views: 44,878
Posted By jasonp
Thanks for all the stage 2 work everybody. I just...

Thanks for all the stage 2 work everybody. I just pointerd Paul's group to the last batch of stage 1 hits in my archives, and it looks like I exhausted everyone's patience so we should probably stop....
Forum: Operation Kibibit 2013-02-16, 14:27
Replies: 134
Views: 44,878
Posted By jasonp
With the patch that corrects the E-value...

With the patch that corrects the E-value calculation in SVN 839, the E-value for this last poly is 3.35e-19. This hit has generated their second best, processing with the CADO tools makes a poly with...
Forum: Operation Kibibit 2013-02-15, 17:40
Replies: 134
Views: 44,878
Posted By jasonp
make sure to delete the .fb file from previous...

make sure to delete the .fb file from previous runs; poly selection won't happen if a poly was previously selected :)
Forum: Operation Kibibit 2013-02-14, 21:52
Replies: 134
Views: 44,878
Posted By jasonp
Could you grep through your dataset for the...

Could you grep through your dataset for the size-optimized polynomial that generated this, then rerun stage 2 with

-ncr "stage2_norm=1e100"

to see if the best poly changes? If you take the...
Forum: Operation Kibibit 2013-02-08, 13:07
Replies: 134
Views: 44,878
Posted By jasonp
The other thing that really jumps out at me from...

The other thing that really jumps out at me from the list of best polynomials is that all of them are coming from stage 1 hits found by the CADO tools. I think the Msieve hits are the ones with lots...
Forum: Operation Kibibit 2013-02-06, 12:26
Replies: 134
Views: 44,878
Posted By jasonp
Their best is 3.51e-19; the full 5000 will...

Their best is 3.51e-19; the full 5000 will probably take 5 days on one core
Forum: Operation Kibibit 2013-02-04, 12:22
Replies: 134
Views: 44,878
Posted By jasonp
Okay, everything is up (I apparently don't have...

Okay, everything is up (I apparently don't have the upload capacity to be a good pirate :)
Forum: Operation Kibibit 2013-02-03, 22:16
Replies: 134
Views: 44,878
Posted By jasonp
Okay, I'll start uploading files. Instructions: ...

Okay, I'll start uploading files. Instructions:

- download your file (they're ~130MB)
- unzip and rename to msieve.dat.m
- with worktodo.ini set for RSA896, run

msieve -v -i <rsa896 worktodo>...
Forum: Operation Kibibit 2013-02-03, 19:14
Replies: 134
Views: 44,878
Posted By jasonp
The answer to your first question is that nobody...

The answer to your first question is that nobody knows. On theoretical grounds we're supposed to be able to find polynomials that are drastically better than what we've been seeing, so if the 'time...
Forum: Operation Kibibit 2013-01-10, 23:09
Replies: 134
Views: 44,878
Posted By jasonp
The stage 2 norm is set deliberately too large so...

The stage 2 norm is set deliberately too large so that all the outputs from the size optimization make it into the output file. That's really just so we can get a statistical idea of how rare it is...
Forum: Operation Kibibit 2013-01-09, 01:38
Replies: 134
Views: 44,878
Posted By jasonp
The 'norm' value is a numerically-computed...

The 'norm' value is a numerically-computed integral that does not depend on translation and skew, so it is a more approximate measure of polynomial quality than the Murphy E score.

Usually when...
Forum: Operation Kibibit 2013-01-02, 12:10
Replies: 134
Views: 44,878
Posted By jasonp
So far the total contributions amount to 10.4M...

So far the total contributions amount to 10.4M hits. Keep 'em coming!

Edit: by comparison, the few months that everyone spent on RSA768 produced 30 million hits, the vast majority of which came...
Forum: Operation Kibibit 2012-12-15, 17:44
Replies: 134
Views: 44,878
Posted By jasonp
Get a windows port of the unix sort utility, and...

Get a windows port of the unix sort utility, and then try

sort -g -k 11 <file>

to sort in ascending numerical order based on field 11 (the last)
Forum: Operation Kibibit 2012-12-15, 03:20
Replies: 134
Views: 44,878
Posted By jasonp
I get skew 1650176.00, size 6.274e-20,...

I get

skew 1650176.00, size 6.274e-20, alpha -9.489, combined = 3.183e-19 rroots = 4
Forum: Operation Kibibit 2012-12-14, 18:01
Replies: 134
Views: 44,878
Posted By jasonp
The patch makes all the MPI processes wait at a...

The patch makes all the MPI processes wait at a barrier when poly selection is finishing, and my experience with OpenMPI is that this is a computationally expensive operation. I suspect that's what...
Forum: Operation Kibibit 2012-12-14, 01:30
Replies: 134
Views: 44,878
Posted By jasonp
Msieve computes an E-value of 2.339e-19 when...

Msieve computes an E-value of 2.339e-19 when using the skew computed by CADO. Would it be worthwhile to find out what causes such big differences?
Forum: Operation Kibibit 2012-12-12, 01:49
Replies: 134
Views: 44,878
Posted By jasonp
I sent a batch of hits computed with a cutoff of...

I sent a batch of hits computed with a cutoff of 5e33 instead of the previous 1e33, and apparently the polynomials generated with the looser cutoff are similar in quality. So if you use 5e33 for the...
Forum: Operation Kibibit 2012-12-06, 03:00
Replies: 134
Views: 44,878
Posted By jasonp
I don't have access to the CADO stage 1 hits....

I don't have access to the CADO stage 1 hits. We've collected 2.7M hits of our own, and they will all have stage 2 performed by both packages.

Keep 'em coming!

Ilya, I suspect a lot of the...
Forum: Operation Kibibit 2012-12-04, 12:19
Replies: 134
Views: 44,878
Posted By jasonp
The difference is that the CADO tools compute the...

The difference is that the CADO tools compute the size score by integrating in radial coordinates, whereas Msieve starts in radial coordinates and switches to computing the integral in rectangular...
Forum: Operation Kibibit 2012-12-01, 13:07
Replies: 134
Views: 44,878
Posted By jasonp
I was going to write that most of the time the...

I was going to write that most of the time the e-values calculated by the two suites differ by less than 1%, and larger differences were actually because of bugs in Msieve that miscalculated the...
Forum: Operation Kibibit 2012-11-30, 16:42
Replies: 134
Views: 44,878
Posted By jasonp
I ran stage 2 on 250k hits computed by RichD and...

I ran stage 2 on 250k hits computed by RichD and myself, the best e-value was 2.0e-19, so not that great. Shi Bai ran the CADO stage 2 on the same dataset and has gotten better high scores (I think...
Forum: Operation Kibibit 2012-11-29, 14:42
Replies: 134
Views: 44,878
Posted By jasonp
Okay. When running stage 2, you will save a lot...

Okay. When running stage 2, you will save a lot of time if you first run with

-nps "stage2_norm=1e100"

so that only the size optimization runs for every hit. On my machine running the size...
Showing results 1 to 25 of 32

 
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