Got this:

[code]Tue Nov 15 10:21:51 2011 commencing square root phase
Tue Nov 15 10:21:51 2011 reading relations for dependency 1
Tue Nov 15 10:21:54 2011 read 5529557 cycles
Tue Nov 15 10:22:01 2011 cycles contain 15362500 unique relations
Tue Nov 15 10:23:18 2011 error: relation 53261938 [B]corrupt[/B][/code]Now what should I do?

[QUOTE=em99010pepe;278460]Got this:

[code]Tue Nov 15 10:21:51 2011 commencing square root phase
Tue Nov 15 10:21:51 2011 reading relations for dependency 1
Tue Nov 15 10:21:54 2011 read 5529557 cycles
Tue Nov 15 10:22:01 2011 cycles contain 15362500 unique relations
Tue Nov 15 10:23:18 2011 error: relation 53261938 [B]corrupt[/B][/code]Now what should I do?[/QUOTE]

You can try running -nc3 on specific dependencies. See if that helps.

I did but got the same error. I changed msieve version from 1.50 to 1.49. It's running.

I just completed a merge with extensive changes to GPU poly selection courtesy of jrk. This should make the GPU code uniformly faster than the CPU code, and the modifications let Nvidia's driver figure out how to give work to the GPU and still keep your graphics responsive. Give it a try if you can; this will probably be the last set of changes before releasing v1.50

I don't know if this important but....

Concerning "error: corrupt state, please restart from checkpoint" error I found that it happens often while I'm pushing hard on my fiber-optic home internet connection when msieve checkpoint is written. I'm using Vista 32 bits on a 5400 rpm hard disk (laptop).

That error is reported when a number-theoretic checksum on the working state of the linear algebra fails; it's performed before a checkpoint write and every so often as the LA runs. Technically it's independent of the checksum writing process.

Here's an example of post-processing of 431_79_minus1 from RSALS that LA won't start. For the last 4 hours that I am trying to run it and dos box always shutdowns after line "commencing Lanczos iteration". So what's my issue here?

[code]Fri Nov 25 20:23:53 2011 Msieve v. 1.49
Fri Nov 25 20:23:53 2011 random seeds: 4cb43a9c f1f344d7
Fri Nov 25 20:23:53 2011 factoring 10040872850412202767988311200343904010253296383666204179607169584356237497461378013263541420378568142212694536585132764491915183713758243179684748057870915974533442611405962355156581893 (185 digits)
Fri Nov 25 20:24:00 2011 searching for 15-digit factors
Fri Nov 25 20:24:04 2011 commencing number field sieve (185-digit input)
Fri Nov 25 20:24:04 2011 R0: -17709427104057277060049775698679791
Fri Nov 25 20:24:04 2011 R1: 1
Fri Nov 25 20:24:04 2011 A0: -1
Fri Nov 25 20:24:04 2011 A1: 0
Fri Nov 25 20:24:04 2011 A2: 0
Fri Nov 25 20:24:04 2011 A3: 0
Fri Nov 25 20:24:04 2011 A4: 0
Fri Nov 25 20:24:04 2011 A5: 0
Fri Nov 25 20:24:04 2011 A6: 431
Fri Nov 25 20:24:04 2011 skew 0.36, size 1.913e-010, alpha 1.673, combined = 5.273e-012 rroots = 2
Fri Nov 25 20:24:04 2011
Fri Nov 25 20:24:04 2011 commencing linear algebra
Fri Nov 25 20:24:08 2011 read 3340596 cycles
Fri Nov 25 20:24:28 2011 cycles contain 10103703 unique relations
Fri Nov 25 20:30:55 2011 read 10103703 relations
Fri Nov 25 20:31:51 2011 using 20 quadratic characters above 268435338
Fri Nov 25 20:35:03 2011 building initial matrix
Fri Nov 25 20:42:45 2011 memory use: 1161.1 MB
Fri Nov 25 20:43:27 2011 read 3340596 cycles
Fri Nov 25 20:43:31 2011 matrix is 3340420 x 3340596 (952.6 MB) with weight 293679469 (87.91/col)
Fri Nov 25 20:43:31 2011 sparse part has weight 226327671 (67.75/col)
Fri Nov 25 20:44:50 2011 filtering completed in 1 passes
Fri Nov 25 20:44:54 2011 matrix is 3340420 x 3340596 (952.6 MB) with weight 293679469 (87.91/col)
Fri Nov 25 20:44:54 2011 sparse part has weight 226327671 (67.75/col)
Fri Nov 25 20:46:21 2011 matrix starts at (0, 0)
Fri Nov 25 20:46:25 2011 matrix is 3340420 x 3340596 (952.6 MB) with weight 293679469 (87.91/col)
Fri Nov 25 20:46:25 2011 sparse part has weight 226327671 (67.75/col)
Fri Nov 25 20:46:25 2011 saving the first 48 matrix rows for later
Fri Nov 25 20:46:30 2011 matrix includes 64 packed rows
Fri Nov 25 20:46:33 2011 matrix is 3340372 x 3340596 (904.2 MB) with weight 235052547 (70.36/col)
Fri Nov 25 20:46:33 2011 sparse part has weight 216990521 (64.96/col)
Fri Nov 25 20:46:33 2011 using block size 65536 for processor cache size 2048 kB
Fri Nov 25 20:47:34 2011 commencing Lanczos iteration (2 threads)
Fri Nov 25 21:55:18 2011
Fri Nov 25 21:55:18 2011
Fri Nov 25 21:55:18 2011 Msieve v. 1.49
Fri Nov 25 21:55:18 2011 random seeds: 6d8b4be4 27bd7c88
Fri Nov 25 21:55:18 2011 factoring 10040872850412202767988311200343904010253296383666204179607169584356237497461378013263541420378568142212694536585132764491915183713758243179684748057870915974533442611405962355156581893 (185 digits)
Fri Nov 25 21:55:26 2011 searching for 15-digit factors
Fri Nov 25 21:55:31 2011 commencing number field sieve (185-digit input)
Fri Nov 25 21:55:32 2011 R0: -17709427104057277060049775698679791
Fri Nov 25 21:55:32 2011 R1: 1
Fri Nov 25 21:55:32 2011 A0: -1
Fri Nov 25 21:55:32 2011 A1: 0
Fri Nov 25 21:55:32 2011 A2: 0
Fri Nov 25 21:55:32 2011 A3: 0
Fri Nov 25 21:55:32 2011 A4: 0
Fri Nov 25 21:55:32 2011 A5: 0
Fri Nov 25 21:55:32 2011 A6: 431
Fri Nov 25 21:55:32 2011 skew 0.36, size 1.913e-010, alpha 1.673, combined = 5.273e-012 rroots = 2
Fri Nov 25 21:55:32 2011
Fri Nov 25 21:55:32 2011 commencing linear algebra
Fri Nov 25 21:55:40 2011 read 3340596 cycles
Fri Nov 25 21:56:08 2011 cycles contain 10103703 unique relations
Fri Nov 25 22:07:15 2011 read 10103703 relations
Fri Nov 25 22:09:22 2011 using 20 quadratic characters above 268435338
Fri Nov 25 22:13:28 2011 building initial matrix
Fri Nov 25 22:22:38 2011 memory use: 1161.1 MB
Fri Nov 25 22:23:32 2011 read 3340596 cycles
Fri Nov 25 22:23:35 2011 matrix is 3340420 x 3340596 (952.6 MB) with weight 293679469 (87.91/col)
Fri Nov 25 22:23:36 2011 sparse part has weight 226327671 (67.75/col)
Fri Nov 25 22:25:00 2011 filtering completed in 1 passes
Fri Nov 25 22:25:03 2011 matrix is 3340420 x 3340596 (952.6 MB) with weight 293679469 (87.91/col)
Fri Nov 25 22:25:03 2011 sparse part has weight 226327671 (67.75/col)
Fri Nov 25 22:28:48 2011 matrix starts at (0, 0)
Fri Nov 25 22:28:52 2011 matrix is 3340420 x 3340596 (952.6 MB) with weight 293679469 (87.91/col)
Fri Nov 25 22:28:52 2011 sparse part has weight 226327671 (67.75/col)
Fri Nov 25 22:28:52 2011 saving the first 48 matrix rows for later
Fri Nov 25 22:28:58 2011 matrix includes 64 packed rows
Fri Nov 25 22:29:00 2011 matrix is 3340372 x 3340596 (904.2 MB) with weight 235052547 (70.36/col)
Fri Nov 25 22:29:00 2011 sparse part has weight 216990521 (64.96/col)
Fri Nov 25 22:29:00 2011 using block size 65536 for processor cache size 2048 kB
Fri Nov 25 22:30:06 2011 commencing Lanczos iteration (2 threads)
[/code]

how much RAM does your PC have? Maybe LA crashes due to an out of memory issue?

[QUOTE=Andi47;279940]how much RAM does your PC have? Maybe LA crashes due to an out of memory issue?[/QUOTE]

2GB

[QUOTE=pinhodecarlos;279879]Here's an example of post-processing of 431_79_minus1 from RSALS that LA won't start. For the last 4 hours that I am trying to run it and dos box always shutdowns after line "commencing Lanczos iteration". So what's my issue here?[/QUOTE]How are you starting this? If you use a shortcut to start it, try starting from an already open dos box. If there's an error message printed, the dos box started from the shortcut will exit immeditely after the message; an already open box will drop back to the command prompt after printing the error message.[QUOTE=Andi47;279940]how much RAM does your PC have? Maybe LA crashes due to an out of memory issue?[/QUOTE]

[QUOTE=pinhodecarlos;279951]2GB[/QUOTE]I don't know if msieve has to do a reallocation, but there have been reports (from Andi47, I believe) where there has been a problem trying a realloc when there is plenty of RAM available (problem is not too little RAM, it's too little [I]contiguous[/I] RAM....)

Frank,

I'll reply later in the evening, I have to go now.

Carlos