1c4762a1bSJed Brown ---------- Testing Gradient ------------- 2c4762a1bSJed Brown Run with -tao_test_gradient_view and optionally -tao_test_gradient <threshold> to show difference 3c4762a1bSJed Brown of hand-coded and finite difference gradient entries greater than <threshold>. 4c4762a1bSJed Brown Testing hand-coded Gradient, if (for double precision runs) ||G - Gfd||/||G|| is 5c4762a1bSJed Brown O(1.e-8), the hand-coded Gradient is probably correct. 6c4762a1bSJed Brown ||Gfd|| 0.0021849, ||G|| = 0.00218604, angle cosine = (Gfd'G)/||Gfd||||G|| = 1. 7c4762a1bSJed Brown 2-norm ||G - Gfd||/||G|| = 0.000520807, ||G - Gfd|| = 1.1385e-06 8c4762a1bSJed Brown max-norm ||G - Gfd||/||G|| = 0.000520807, ||G - Gfd|| = 1.1385e-06 9c4762a1bSJed Brown 0 TAO, Function value: -1.01855, Residual: 0.00218604 10c4762a1bSJed Brown ---------- Testing Gradient ------------- 11c4762a1bSJed Brown ||Gfd|| 1., ||G|| = 1., angle cosine = (Gfd'G)/||Gfd||||G|| = 1. 12c4762a1bSJed Brown 2-norm ||G - Gfd||/||G|| = 2.22045e-16, ||G - Gfd|| = 2.22045e-16 13c4762a1bSJed Brown max-norm ||G - Gfd||/||G|| = 2.22045e-16, ||G - Gfd|| = 2.22045e-16 14c4762a1bSJed Brown ---------- Testing Gradient ------------- 15c4762a1bSJed Brown ||Gfd|| 0.0736232, ||G|| = 0.0736226, angle cosine = (Gfd'G)/||Gfd||||G|| = 1. 16c4762a1bSJed Brown 2-norm ||G - Gfd||/||G|| = 8.2006e-06, ||G - Gfd|| = 6.03754e-07 17c4762a1bSJed Brown max-norm ||G - Gfd||/||G|| = 8.2006e-06, ||G - Gfd|| = 6.03754e-07 18c4762a1bSJed Brown ---------- Testing Gradient ------------- 19c4762a1bSJed Brown ||Gfd|| 3.42727e-07, ||G|| = 1.38753e-11, angle cosine = (Gfd'G)/||Gfd||||G|| = -1. 20c4762a1bSJed Brown 2-norm ||G - Gfd||/||G|| = 1.00004, ||G - Gfd|| = 3.42741e-07 21c4762a1bSJed Brown max-norm ||G - Gfd||/||G|| = 1.00004, ||G - Gfd|| = 3.42741e-07 22c4762a1bSJed Brown 1 TAO, Function value: -1.01855, Residual: 1.38753e-11 23c4762a1bSJed BrownTAO solve converged due to CONVERGED_GRTOL iterations 1 24*8cc725e6SPierre JolivetVec Object: 1 MPI process 25c4762a1bSJed Brown type: seq 26c4762a1bSJed Brown1.0194 27