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Forum: Msieve 2015-03-30, 10:32
Replies: 149
Views: 22,882
Posted By poily
Here's the fix to the problem I mentioned before...

Here's the fix to the problem I mentioned before in case anyone is interested:


--- common/lanczos/lanczos_matmul0.c (revision 984)
+++ common/lanczos/lanczos_matmul0.c (working copy)
@@...
Forum: Msieve 2015-03-23, 16:15
Replies: 149
Views: 22,882
Posted By poily
Looks like the solution I gave was not complete:...

Looks like the solution I gave was not complete: I forgot about the tmp_b accumulation at the end of mul_packed. This needs to be fixed too.
Forum: Msieve 2015-03-19, 16:24
Replies: 149
Views: 22,882
Posted By poily
Not exactly. But I had a situation when...

Not exactly. But I had a situation when (p->num_dense_rows + 63) / 64 =2 and p->first_block_size<128.
Forum: Msieve 2015-03-19, 08:08
Replies: 149
Views: 22,882
Posted By poily
Recently I found a nasty bug in latest msieve LA...

Recently I found a nasty bug in latest msieve LA code. The bug affects large jobs with unusual number of dense rows. The effect differs from platform to platform: it may cause immediate crash,...
Forum: Msieve 2013-06-17, 11:28
Replies: 104
Views: 12,871
Posted By poily
Paul, check pm, please.

Paul, check pm, please.
Forum: Msieve 2013-06-13, 10:12
Replies: 104
Views: 12,871
Posted By poily
I'm working on a new parallel version of msieve's...

I'm working on a new parallel version of msieve's LA and already made some progress. But currently all data I can test it on is 50K matrix from a very small factorization. In order to see the...
Forum: Operation Kibibit 2013-02-18, 08:33
Replies: 134
Views: 23,665
Posted By poily
Actually that patch is still not working...

Actually that patch is still not working properly: it produces single .fb file with race condition (due to lack of .fb->.fb.mpi patching). But I guess Jason will fix it by himself someday.
Forum: Operation Kibibit 2013-02-09, 21:09
Replies: 134
Views: 23,665
Posted By poily
Finished completely with batch 7. Best I got was...

Finished completely with batch 7. Best I got was 2.42e-19 of combined e.
Forum: Operation Kibibit 2013-02-08, 12:31
Replies: 134
Views: 23,665
Posted By poily
Hm, I was under impression the patch should also...

Hm, I was under impression the patch should also work for poly root optimization... But it didn't due to copy-paste mistype, here's fixed version of the patch.

I finished the batch 7, started poly...
Forum: Operation Kibibit 2013-02-04, 13:09
Replies: 134
Views: 23,665
Posted By poily
I took batch 7.

I took batch 7.
Forum: Operation Kibibit 2013-02-04, 10:55
Replies: 134
Views: 23,665
Posted By poily
I've attached modified msieve MPI polynomial...

I've attached modified msieve MPI polynomial selection patch so you guys wouldn't have to manually split the input files.

jasonp, can you post links to all the batches left?
Forum: Operation Kibibit 2012-12-17, 09:05
Replies: 134
Views: 23,665
Posted By poily
This batch...

This batch (http://depositfiles.com/files/tr0zv0mha) resulted in the following best so far polynomial:
Mon Dec 17 04:01:41 2012 R0: -5382714938488690441209883907451379700210334 ...
Forum: Operation Kibibit 2012-12-15, 13:52
Replies: 134
Views: 23,665
Posted By poily
I agree with debrouxl that the MPI-ed polynomial...

I agree with debrouxl that the MPI-ed polynomial selection should be included in some form in the mainline msieve. I'm tired of doing the trivial patchwork for every new major msieve revision ;)

...
Forum: Operation Kibibit 2012-12-14, 09:31
Replies: 134
Views: 23,665
Posted By poily
Ok, here...

Ok, here (http://depositfiles.com/files/bopjglvg4) are about 1.8M hits for the new bound 5e33. It seems the tighter bound was better: with 1e33 as a bound on stage 1 after size optimizations I saw...
Forum: Msieve 2012-12-05, 12:45
Replies: 6
Views: 755
Posted By poily
And there's working MPI MapReduce implementaion...

And there's working MPI MapReduce implementaion (http://mapreduce.sandia.gov/). ;)

I believe one can also do naive large prime removal using double MapReduce.
Forum: Msieve 2012-12-05, 11:43
Replies: 6
Views: 755
Posted By poily
Say, you have N relations on P peers each having...

Say, you have N relations on P peers each having N/P relation locally. If you want to collect all the data in one place you need O((P-1)N/P) of communication time then you need to process the data in...
Forum: Msieve 2012-12-05, 10:34
Replies: 6
Views: 755
Posted By poily
Distributed NFS postprocessing

I recently started working on NFS postprocessing for DLOG and found one funny thing called MapReduce (http://code.google.com/intl/ru/edu/parallel/mapreduce-tutorial.html). I noticed that duplicate...
Forum: Operation Kibibit 2012-12-05, 09:43
Replies: 134
Views: 23,665
Posted By poily
So, the best murphy_e we have so far is about...

So, the best murphy_e we have so far is about 2.5e-16, I wonder how CADO guys got murphy_e 2x larger than ours? Either their polynomial is quite extraordinary or they use different optimization...
Forum: Operation Kibibit 2012-12-04, 09:59
Replies: 134
Views: 23,665
Posted By poily
I got it by myself: CADO's E.sage gives...

I got it by myself: CADO's E.sage gives 1.84701205471987e-19 for your and 2.08696883313422e-19 for my polynomial.
Forum: Operation Kibibit 2012-12-01, 14:25
Replies: 134
Views: 23,665
Posted By poily
Here's my slightly better (according to msieve)...

Here's my slightly better (according to msieve) polynomial

SKEW 28338177.70
R0...
Forum: Operation Kibibit 2012-11-30, 12:53
Replies: 134
Views: 23,665
Posted By poily
Stage 2 finished, the best 10 polynomials...

Stage 2 finished, the best 10 polynomials murphy_e ranges in 2.348e-19 - 2.129e-19. Not very impressing.
Forum: Operation Kibibit 2012-11-29, 14:03
Replies: 134
Views: 23,665
Posted By poily
Ok, here's my rsa896 stage1 data for 1e13...

Ok, here's my rsa896 stage1 data for 1e13 (http://depositfiles.com/files/c12l1rwrj) and 1e14 (http://depositfiles.com/files/wxwee5w7d). I'll try to run stage2 on part of it.
Forum: Operation Kibibit 2012-11-28, 17:57
Replies: 134
Views: 23,665
Posted By poily
I got 417K stage1 hits for msieve -np1...

I got 417K stage1 hits for

msieve -np1 "stage1_norm=1e33 100000000000000,1000000000000000"
should I run stage 2 on them or better give them to somebody?
Forum: Msieve 2012-09-20, 14:04
Replies: 63
Views: 7,194
Posted By poily
Maybe...

Maybe http://mersenneforum.org/showpost.php?p=304639&postcount=9 will be usefull for you.
Forum: Msieve 2012-09-05, 13:08
Replies: 63
Views: 7,194
Posted By poily
24 hours of RSA-210 polynomial selection on 1...

24 hours of RSA-210 polynomial selection on 1 Tesla X2070 gave me the best murphy_e 7.485e-16 with the faststage1 version and 8.48e-16 with the trunk version. I know the polsel algorithm is...
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