def test_external_hessian_SimpleModel2(self): model = SimpleModel2() m = model.make_model() x_init_list = [ [-5.0], [-4.0], [-3.0], [-1.5], [0.5], [1.0], [2.0], [3.5] ] external_model = ExternalPyomoModel( [m.x], [m.y], [m.residual_eqn], [m.external_eqn], ) for x in x_init_list: external_model.set_input_values(x) hess = external_model.evaluate_hessian_external_variables() expected_hess = model.evaluate_external_hessian(x[0]) self.assertAlmostEqual( hess[0][0,0], expected_hess, delta=1e-7, )
def test_external_hessian_SimpleModel2x2_1(self): model = SimpleModel2by2_1() m = model.make_model() m.x[0].set_value(1.0) m.x[1].set_value(2.0) m.y[0].set_value(3.0) m.y[1].set_value(4.0) x0_init_list = [-5.0, -3.0, 0.5, 1.0, 2.5] x1_init_list = [-4.5, -2.3, 0.0, 1.0, 4.1] x_init_list = list(itertools.product(x0_init_list, x1_init_list)) external_model = ExternalPyomoModel( list(m.x.values()), list(m.y.values()), list(m.residual_eqn.values()), list(m.external_eqn.values()), ) for x in x_init_list: external_model.set_input_values(x) hess = external_model.evaluate_hessian_external_variables() expected_hess = model.evaluate_external_hessian(x) for matrix1, matrix2 in zip(hess, expected_hess): np.testing.assert_allclose(matrix1, matrix2, rtol=1e-8)