Msieve v1.47 feedback

[jasonp]

Thank you!

[firejuggler]

thanks for the update

[miklin]

If to whom it is interesting.
That here so looks assemblage under Debian 5.0.6 (lenny).

[miklin]

If to whom it is interesting.
That here so looks assemblage under Ubuntu 10.04 (Lucid).

[miklin]

If to whom it is interesting.
That here so looks work msieve under Ubuntu 10.04 (Lucid). On mine it is simply smart!

 
Wed Sep 22 01:51:33 2010  Msieve v. 1.47
Wed Sep 22 01:51:33 2010  random seeds: 46fd6563 563a1d32
Wed Sep 22 01:51:33 2010  factoring 8020260428011536663687916487969855329520885112976737842788920793494515898041923607220335187081730608028929561818665407322849668467101724799776225717217529 (154 digits)
Wed Sep 22 01:51:34 2010  searching for 15-digit factors
Wed Sep 22 01:51:34 2010  commencing number field sieve (154-digit input)
Wed Sep 22 01:51:34 2010  R0: -162167976685967477877754100804
Wed Sep 22 01:51:34 2010  R1:  868246461095023109
Wed Sep 22 01:51:34 2010  A0: -28125962454049113663451574638664715
Wed Sep 22 01:51:34 2010  A1:  175574619179608719230327792992
Wed Sep 22 01:51:34 2010  A2:  3264700120026054447004968
Wed Sep 22 01:51:34 2010  A3: -9601027019190554979
Wed Sep 22 01:51:34 2010  A4: -79462097024750
Wed Sep 22 01:51:34 2010  A5:  71509800
Wed Sep 22 01:51:34 2010  skew 226399.02, size 5.332e-15, alpha -5.819, combined = 2.966e-12 rroots = 5
Wed Sep 22 01:51:34 2010  
Wed Sep 22 01:51:34 2010  commencing linear algebra
Wed Sep 22 01:51:35 2010  read 4156260 cycles
Wed Sep 22 01:51:45 2010  cycles contain 10876231 unique relations
Wed Sep 22 02:00:00 2010  read 10876231 relations
Wed Sep 22 02:00:26 2010  using 20 quadratic characters above 536870574
Wed Sep 22 02:01:40 2010  building initial matrix
Wed Sep 22 02:05:27 2010  memory use: 1502.4 MB
Wed Sep 22 02:05:31 2010  read 4156260 cycles
Wed Sep 22 02:05:32 2010  matrix is 4156083 x 4156260 (1242.0 MB) with weight 388951084 (93.58/col)
Wed Sep 22 02:05:32 2010  sparse part has weight 279856276 (67.33/col)
Wed Sep 22 02:06:53 2010  filtering completed in 2 passes
Wed Sep 22 02:06:55 2010  matrix is 4155294 x 4155471 (1241.9 MB) with weight 388922695 (93.59/col)
Wed Sep 22 02:06:55 2010  sparse part has weight 279848224 (67.34/col)
Wed Sep 22 02:07:30 2010  matrix starts at (0, 0)
Wed Sep 22 02:07:32 2010  matrix is 4155294 x 4155471 (1241.9 MB) with weight 388922695 (93.59/col)
Wed Sep 22 02:07:32 2010  sparse part has weight 279848224 (67.34/col)
Wed Sep 22 02:07:32 2010  saving the first 48 matrix rows for later
Wed Sep 22 02:07:33 2010  matrix includes 64 packed rows
Wed Sep 22 02:07:34 2010  matrix is 4155246 x 4155471 (1202.2 MB) with weight 308327541 (74.20/col)
Wed Sep 22 02:07:34 2010  sparse part has weight 273593076 (65.84/col)
Wed Sep 22 02:07:34 2010  using block size 65536 for processor cache size 6144 kB
Wed Sep 22 02:07:56 2010  commencing Lanczos iteration (8 threads)
Wed Sep 22 02:07:56 2010  memory use: 1183.9 MB
Wed Sep 22 02:08:42 2010  linear algebra at 0.0%, ETA 33h21m
Wed Sep 22 02:08:57 2010  checkpointing every 130000 dimensions
Thu Sep 23 12:00:25 2010  lanczos halted after 65709 iterations (dim = 4155244)
Thu Sep 23 12:00:34 2010  recovered 30 nontrivial dependencies
Thu Sep 23 12:00:34 2010  BLanczosTime: 122940
Thu Sep 23 12:00:34 2010  elapsed time 34:09:01
Thu Sep 23 12:00:35 2010 -> Running square root step ...
Thu Sep 23 12:00:35 2010  
Thu Sep 23 12:00:35 2010  
Thu Sep 23 12:00:35 2010  Msieve v. 1.47
Thu Sep 23 12:00:35 2010  random seeds: ec1752f3 a8f8110a
Thu Sep 23 12:00:35 2010  factoring 8020260428011536663687916487969855329520885112976737842788920793494515898041923607220335187081730608028929561818665407322849668467101724799776225717217529 (154 digits)
Thu Sep 23 12:00:36 2010  searching for 15-digit factors
Thu Sep 23 12:00:36 2010  commencing number field sieve (154-digit input)
Thu Sep 23 12:00:36 2010  R0: -162167976685967477877754100804
Thu Sep 23 12:00:36 2010  R1:  868246461095023109
Thu Sep 23 12:00:36 2010  A0: -28125962454049113663451574638664715
Thu Sep 23 12:00:36 2010  A1:  175574619179608719230327792992
Thu Sep 23 12:00:36 2010  A2:  3264700120026054447004968
Thu Sep 23 12:00:36 2010  A3: -9601027019190554979
Thu Sep 23 12:00:36 2010  A4: -79462097024750
Thu Sep 23 12:00:36 2010  A5:  71509800
Thu Sep 23 12:00:36 2010  skew 226399.02, size 5.332e-15, alpha -5.819, combined = 2.966e-12 rroots = 5
Thu Sep 23 12:00:36 2010  
Thu Sep 23 12:00:36 2010  commencing square root phase
Thu Sep 23 12:00:36 2010  reading relations for dependency 1
Thu Sep 23 12:00:37 2010  read 2077679 cycles
Thu Sep 23 12:00:42 2010  cycles contain 5438766 unique relations
Thu Sep 23 12:08:44 2010  read 5438766 relations
Thu Sep 23 12:09:30 2010  multiplying 5438766 relations
Thu Sep 23 12:25:51 2010  multiply complete, coefficients have about 330.53 million bits
Thu Sep 23 12:25:56 2010  initial square root is modulo 852689
Thu Sep 23 12:58:45 2010  sqrtTime: 3489

[EdH]

Trying to compile Msieve (revision 421) on an Ubuntu machine, I get the following error:

common/util.c:255: error: ‘code’ undeclared (first use in this function)
common/util.c:255: error: (Each undeclared identifier is reported only once
common/util.c:255: error: for each function it appears in.)

Thoughts?

[bsquared]

Originally Posted by EdH

Trying to compile Msieve (revision 421) on an Ubuntu machine, I get the following error:

common/util.c:255: error: ‘code’ undeclared (first use in this function)
common/util.c:255: error: (Each undeclared identifier is reported only once
common/util.c:255: error: for each function it appears in.)

Thoughts?

Ahh, yes. I had this problem the other day. Comes about when compiling for 32bit systems (32 bit builds are not normally tested, I think).

Change "code" to "code1" on line 167 of util.c

[jasonp]

Try r422, which should fix the typo that causes this. Apparently not too many people try compiling on 32-bit systems anymore...usually I catch these problems but haven't had time lately.

(Your bug report was resolved in stereo!)

[EdH]

Thanks!

Version 1.48 (r422) compiled and is running.

However, all isn't quite well for my automated Aliqueit setup. I appear to have the "getrusage" trouble referenced in the v1.46 thread. It never quits the poly search. I'm going to try changing "use_msieve_polyfind" (in aliqueit.ini) to false to see if that works, but if not, I'll have to try a different OS for this machine, or relegate it to other activity.

The machine particulars are:

AMD 1.8GHz, 64k cache, (The OS thinks it is Athlon, but "I" think it is Duron)

1.25 GB RAM

Ubuntu 10.04 LTS ("uname -a" shows 2.6.32-25-generic #45-Ubuntu SMP Sat Oct 16 ... i686 ...)

Thanks for all your work. Any additional info is always welcome.

[jasonp]

I wonder if this is a permission thing that you can control from your shell; it sounds like the sort of stuff that might be turned off in a non-developer install, sort of like forbidding core dumps.

[EdH]

Originally Posted by jasonp

I wonder if this is a permission thing that you can control from your shell; it sounds like the sort of stuff that might be turned off in a non-developer install, sort of like forbidding core dumps.

Actually, at this point, things have gotten even worse - the hard drive has crashed, such that the machine can't even find it. The good part is that nothing of great value was on it.

I'll see how another drive and maybe a different OS work... more later...

Thanks again.