9708a6eaeed14443c9ccf26594155767fcbf83d6,gpytorch/models/exact_gp.py,ExactGP,__call__,#ExactGP#,57

Before Change

                if not isinstance(test_test_covar, LazyVariable):
                    test_test_covar = NonLazyVariable(test_test_covar)
                covar_correction = test_train_covar.matmul(self.chol)
                predictive_covar = test_test_covar + CholLazyVariable(covar_correction).mul(-1)
            else:
                if isinstance(train_test_covar, LazyVariable):
                    train_test_covar = train_test_covar.evaluate()
                if isinstance(test_train_covar, LazyVariable):

After Change

                if not isinstance(test_test_covar, LazyVariable):
                    test_test_covar = NonLazyVariable(test_test_covar)
                covar_correction_left = test_train_covar.matmul(self.low_rank_left)
                covar_correction_right = test_train_covar.matmul(self.low_rank_right.transpose(-1, -2))
                covar_correction_right = covar_correction_right.transpose(-1, -2)
                covar_correction = MatmulLazyVariable(covar_correction_left, covar_correction_right).mul(-1)
                predictive_covar = test_test_covar + covar_correction
            else:

Instances