The c196 on index 5283 (1742276725...) looks to be a tough nut to crack. I've already run 10K curves at B1=26e7 and another 10K at B1=76e8, but no luck so far.

Everyone else is encouraged to run curves too... I will be starting GNFS soon.

[QUOTE=ryanp;433367]The c196 on index 5283 (1742276725...) looks to be a tough nut to crack. I've already run 10K curves at B1=26e7 and another 10K at B1=76e8, but no luck so far.

Everyone else is encouraged to run curves too... I will be starting GNFS soon.[/QUOTE]

1 mod 4 so 50% chance of raising the power of 2

Here's an update on the c196 that is the next blocker:

[CODE]Wed May 11 14:54:21 2016 commencing linear algebra
Wed May 11 14:54:26 2016 read 27986211 cycles
Wed May 11 14:55:28 2016 cycles contain 77742891 unique relations
Wed May 11 15:06:48 2016 read 77742891 relations
Wed May 11 15:09:52 2016 using 20 quadratic characters above 2692049954
Wed May 11 15:18:39 2016 building initial matrix
Wed May 11 15:51:22 2016 memory use: 11806.3 MB
Wed May 11 15:51:45 2016 read 27986211 cycles
Wed May 11 15:51:54 2016 matrix is 27986032 x 27986211 (12830.1 MB) with weight 3969810634 (141.85/col)
Wed May 11 15:51:54 2016 sparse part has weight 3027502384 (108.18/col)
Wed May 11 16:01:27 2016 filtering completed in 2 passes
Wed May 11 16:01:37 2016 matrix is 27985506 x 27985685 (12830.1 MB) with weight 3969786240 (141.85/col)
Wed May 11 16:01:37 2016 sparse part has weight 3027495594 (108.18/col)
Wed May 11 16:06:46 2016 matrix starts at (0, 0)
Wed May 11 16:06:55 2016 matrix is 27985506 x 27985685 (12830.1 MB) with weight 3969786240 (141.85/col)
Wed May 11 16:06:55 2016 sparse part has weight 3027495594 (108.18/col)
Wed May 11 16:06:55 2016 saving the first 48 matrix rows for later
Wed May 11 16:07:02 2016 matrix includes 64 packed rows
Wed May 11 16:07:08 2016 matrix is 27985458 x 27985685 (12565.1 MB) with weight 3380600754 (120.80/col)
Wed May 11 16:07:08 2016 sparse part has weight 3014016578 (107.70/col)
Wed May 11 16:07:08 2016 using block size 8192 and superblock size 4423680 for processor cache size 46080 kB
Wed May 11 16:11:55 2016 commencing Lanczos iteration (64 threads)
Wed May 11 16:11:55 2016 memory use: 10771.0 MB
Wed May 11 16:13:36 2016 linear algebra at 0.0%, ETA 493h32m
Wed May 11 16:14:09 2016 checkpointing every 60000 dimensions[/CODE]

I am trying to see if a little more sieving and a higher target_density (trying 140) will produce a matrix with a shorter ETA.

48 hours. 48 hours to polyselect and sieve a GNFS-195. What the :censored:

:shock:

A bit of over-sieving and setting target_density=130 helped a bit.

[CODE]Thu May 12 19:12:53 2016 building initial matrix
Thu May 12 19:51:02 2016 memory use: 12717.1 MB
Thu May 12 19:51:22 2016 read 29261281 cycles
Thu May 12 19:51:30 2016 matrix is 29233499 x 29261281 (13648.1 MB) with weight 4232633740 (144.65/col)
Thu May 12 19:51:30 2016 sparse part has weight 3226644007 (110.27/col)
Thu May 12 20:09:35 2016 filtering completed in 3 passes
Thu May 12 20:09:46 2016 matrix is 29021153 x 29021351 (13565.0 MB) with weight 4205410151 (144.91/col)
Thu May 12 20:09:46 2016 sparse part has weight 3207726920 (110.53/col)
Thu May 12 20:16:25 2016 matrix starts at (0, 0)
Thu May 12 20:16:32 2016 matrix is 29021153 x 29021351 (13565.0 MB) with weight 4205410151 (144.91/col)
Thu May 12 20:16:32 2016 sparse part has weight 3207726920 (110.53/col)
Thu May 12 20:16:32 2016 saving the first 48 matrix rows for later
Thu May 12 20:16:38 2016 matrix includes 64 packed rows
Thu May 12 20:16:44 2016 matrix is 29021105 x 29021351 (13288.3 MB) with weight 3587263101 (123.61/col)
Thu May 12 20:16:44 2016 sparse part has weight 3193239790 (110.03/col)
Thu May 12 20:16:44 2016 using block size 8192 and superblock size 4423680 for processor cache size 46080 kB
Thu May 12 20:20:47 2016 commencing Lanczos iteration (48 threads)
Thu May 12 20:20:47 2016 memory use: 11419.8 MB
Thu May 12 20:21:42 2016 linear algebra at 0.0%, ETA 276h19m
Thu May 12 20:21:59 2016 checkpointing every 110000 dimensions[/CODE]

OK, we're almost there on the c196 blocker. Current ETA for linear algebra is about 45 hours.

And onward we go....

[CODE]Sat May 28 04:50:38 2016 prp93 factor: 323809855339456561150604956264226068193303136647143996452370244441487927592878373028105104267
Sat May 28 04:50:38 2016 prp103 factor: 5380554967805842623777304908323517352371059069412454635151090178974054931519218146235535260259241226243[/CODE]

...and now we have squared 3 :no:

which is actually good, that is how we get rid of them... :razz:

[QUOTE=LaurV;435045]which is actually good, that is how we get rid of them... :razz:[/QUOTE]

Previously there was no 3, and we hope there shant be a 3 in future lines... if the 3 doesn't immediately push it over 200 digits.

(Of course we really hope for the downdriver, but that's unlikely of course...)

ECM on the c192 blocker has so far come up empty. Starting sieving now.