1 ---------- Testing Jacobian ------------- 2 Run with -snes_test_jacobian_view and optionally -snes_test_jacobian <threshold> to show difference 3 of hand-coded and finite difference Jacobian entries greater than <threshold>. 4 Testing hand-coded Jacobian, if (for double precision runs) ||J - Jfd||_F/||J||_F is 5 O(1.e-8), the hand-coded Jacobian is probably correct. 6 ||J - Jfd||_F/||J||_F = 1.32937e-08, ||J - Jfd||_F = 9.15765e-07 7 ---------- Testing Jacobian ------------- 8 ||J - Jfd||_F/||J||_F = 1.32668e-08, ||J - Jfd||_F = 9.13916e-07 9 ---------- Testing Jacobian ------------- 10 ||J - Jfd||_F/||J||_F = 1.32465e-08, ||J - Jfd||_F = 9.12519e-07 11 ---------- Testing Jacobian ------------- 12 ||J - Jfd||_F/||J||_F = 4.53613e-05, ||J - Jfd||_F = 0.0030338 13