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Old 2020-05-17, 21:44   #11
charybdis
 
Apr 2020

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Code:
Sun May 17 19:51:22 2020  Msieve v. 1.54 (SVN 1030M)
Sun May 17 19:51:22 2020  random seeds: 74f448f4 3f9ca822
Sun May 17 19:51:22 2020  factoring 52578676770574634512595466847841062400406219898703178016790505924363888689365475143019601569100893681427169623580739917336603746042987149267328695780988068362551904560641 (170 digits)
Sun May 17 19:51:22 2020  searching for 15-digit factors
Sun May 17 19:51:23 2020  commencing number field sieve (170-digit input)
Sun May 17 19:51:23 2020  R0: -647379397577956473141846534803906
Sun May 17 19:51:23 2020  R1: 34336932387135505576189
Sun May 17 19:51:23 2020  A0: 67111045429448622534099281184997406601
Sun May 17 19:51:23 2020  A1: 247012654371586877957224260881448
Sun May 17 19:51:23 2020  A2: -65521455613079545959441611
Sun May 17 19:51:23 2020  A3: -56319283841035187455
Sun May 17 19:51:23 2020  A4: 3534129102237
Sun May 17 19:51:23 2020  A5: 462210
Sun May 17 19:51:23 2020  skew 1.00, size 1.512e-16, alpha -4.882, combined = 3.112e-15 rroots = 5
Sun May 17 19:51:23 2020  
Sun May 17 19:51:23 2020  commencing relation filtering
Sun May 17 19:51:23 2020  setting target matrix density to 100.0
Sun May 17 19:51:23 2020  estimated available RAM is 15845.4 MB
Sun May 17 19:51:23 2020  commencing duplicate removal, pass 1
Sun May 17 20:10:03 2020  found 49623560 hash collisions in 200069821 relations
Sun May 17 20:10:25 2020  commencing duplicate removal, pass 2
Sun May 17 20:14:03 2020  found 61168048 duplicates and 138901773 unique relations
...
Sun May 17 20:55:50 2020  matrix is 9099996 x 9100221 (3602.2 MB) with weight 949734284 (104.36/col)
Sun May 17 20:55:50 2020  sparse part has weight 853284443 (93.77/col)
Sun May 17 20:55:50 2020  using block size 8192 and superblock size 884736 for processor cache size 9216 kB
Sun May 17 20:56:12 2020  commencing Lanczos iteration (6 threads)
Sun May 17 20:56:12 2020  memory use: 3428.1 MB
Sun May 17 20:56:30 2020  linear algebra at 0.0%, ETA 28h16m
23.7M CPU-seconds of sieving with A=28; the polynomial is supposedly slightly better than the one from the previous job (3.76e-13 vs 3.53e-13) which would suggest I=14 is a little faster. The matrix has come out smaller though, despite a similar number of unique relations (and, in fact, a smaller excess of relations over ideals). Not really clear which will end up being fastest when everything else is optimised.

Final Q-values were 157.7M for the I=14 job and 104.3M for this one; both started at 7M.

Last fiddled with by charybdis on 2020-05-17 at 21:45
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