 2020-06-21, 05:34 #388 rebirther   Sep 2011 Germany 2,521 Posts Another issue with the latest srsieve2: from 14.06. Code: g:\sierp-base913>srsieve2 -n2501 -N10000 -P1e9 -W16 -spl_remain.txt -fB srsieve2 v1.2.1, a program to find factors of k*b^n+c numbers for fixed b and variable k and n (p4) Removed 1875 algebraic factors for 324*913^n+1 of the form (2*3^2*913^(n/2)+2*3^1*913^(n/4)+1) (kp) Sequence has algebraic factorization: 74088*913^n+1 -> (42^3)*913^n+1 (kp) Sequence 74088*913^n+1 has 2500 terms removed due to algebraic factors of the form 42*913^(n/3)+1 (p4) Removed 1875 algebraic factors for 334084*913^n+1 of the form (2*17^2*913^(n/2)+2*17^1*913^(n/4)+1) Sieving with generic logic Sieve started: 2 < p < 1e9 with 237646250 terms (2501 < n < 10000, k*913^n+c) (expecting 229697511 factors) p=135719, 209.3 p/sec, 207211870 factors found at 3.199M f/sec, 0.0% done. ETC 2020-06-26 12:17 from 16.01. Code: g:\sierp-base913>srsieve2 -n2501 -N10000 -P1e9 -W16 -spl_remain.txt -fB srsieve2 v1.2.1, a program to find factors of k*b^n+c numbers for fixed b and variable k and n (p4) Removed 1875 algebraic factors for 324*913^n+1 of the form (2*3^2*913^(n/2)+2*3^1*913^(n/4)+1) (kp) Sequence has algebraic factorization: 74088*913^n+1 -> (42^3)*913^n+1 (kp) Sequence 74088*913^n+1 has 2500 terms removed due to algebraic factors of the form 42*913^(n/3)+1 (p4) Removed 1875 algebraic factors for 334084*913^n+1 of the form (2*17^2*913^(n/2)+2*17^1*913^(n/4)+1) Sieving with generic logic Sieve started: 2 < p < 1e9 with 237646250 terms (2501 < n < 10000, k*913^n+c) (expecting 229697511 factors) Sieving with generic logic Split 31687 base 913 sequences into 31687 base 913^1 sequences. p=275794661, 4.765K p/sec, 20401086 factors found at 70.73K f/sec, 27.6% done. ETC 2020-06-21 07:32 The split line was missing and only 2 workers of 16 are running, tried several times with the same result.  