fix slow tests

Author: janfb

tests/lc2st_test.py

@@ -197,7 +197,7 @@ def test_lc2st_true_positiv_rate(method):
 
     # good estimator: big training and num_epochs = accept
     # (convergence of the estimator)
-    num_train = 10_000
+    num_train = 5_000
     num_epochs = 200
 
     num_cal = 1_000

tests/linearGaussian_npse_test.py

@@ -38,7 +38,7 @@ def test_c2st_npse_on_linearGaussian(
 
     x_o = zeros(1, num_dim)
     num_samples = 1000
-    num_simulations = 4000
+    num_simulations = 5000
 
     # likelihood_mean will be likelihood_shift+theta
     likelihood_shift = -1.0 * ones(num_dim)

tests/sbc_test.py

@@ -99,7 +99,7 @@ def test_consistent_sbc_results(density_estimator, cov_method):
     def simulator(theta):
         return linear_gaussian(theta, likelihood_shift, likelihood_cov)
 
-    num_simulations = 2000
+    num_simulations = 4000
     num_posterior_samples = 1000
     num_sbc_runs = 100