diff --git a/hysop/operator/tests/test_spectral_derivative.py b/hysop/operator/tests/test_spectral_derivative.py
index 8b3d6200ef4d749d2f7cba41cca446b92b9a2656..6a5b2b96e2c788e6704f4310a9c1dbee8127811b 100644
--- a/hysop/operator/tests/test_spectral_derivative.py
+++ b/hysop/operator/tests/test_spectral_derivative.py
@@ -326,37 +326,37 @@ class TestSpectralDerivative(object):
     # def test_2d_trigonometric_float32(self, **kwds):
     #     self._test(dim=2, dtype=npw.float32, polynomial=False, **kwds)
     def test_3d_trigonometric_float32(self, **kwds):
-        self._test(dim=3, dtype=npw.float32, polynomial=False, max_runs=2, **kwds)
+        self._test(dim=3, dtype=npw.float32, polynomial=False, **kwds)
 
     # def test_1d_trigonometric_float64(self, **kwds):
     #     self._test(dim=1, dtype=npw.float64, polynomial=False, **kwds)
     # def test_2d_trigonometric_float64(self, **kwds):
     #     self._test(dim=2, dtype=npw.float64, polynomial=False, **kwds)
     def test_3d_trigonometric_float64(self, **kwds):
-        self._test(dim=3, dtype=npw.float64, polynomial=False, max_runs=2, **kwds)
+        self._test(dim=3, dtype=npw.float64, polynomial=False, **kwds)
 
     # def test_1d_polynomial_float32(self, **kwds):
     #     self._test(dim=1, dtype=npw.float32, polynomial=True, **kwds)
     # def test_2d_polynomial_float32(self, **kwds):
     #     self._test(dim=2, dtype=npw.float32, polynomial=True, **kwds)
     def test_3d_polynomial_float32(self, **kwds):
-        self._test(dim=3, dtype=npw.float32, polynomial=True, max_runs=2, **kwds)
+        self._test(dim=3, dtype=npw.float32, polynomial=True, **kwds)
 
     def perform_tests(self):
         max_2d_runs = None if __ENABLE_LONG_TESTS__ else 2
         max_3d_runs = None if __ENABLE_LONG_TESTS__ else 2
 
-        self.test_1d_trigonometric_float32(max_derivative=3)
-        self.test_2d_trigonometric_float32(max_derivative=2, max_runs=max_2d_runs)
+        # self.test_1d_trigonometric_float32(max_derivative=3)
+        # self.test_2d_trigonometric_float32(max_derivative=2, max_runs=max_2d_runs)
         self.test_3d_trigonometric_float32(max_derivative=1, max_runs=max_3d_runs)
 
         if __ENABLE_LONG_TESTS__:
-            self.test_1d_trigonometric_float64(max_derivative=3)
-            self.test_2d_trigonometric_float64(max_derivative=2)
+            # self.test_1d_trigonometric_float64(max_derivative=3)
+            # self.test_2d_trigonometric_float64(max_derivative=2)
             self.test_3d_trigonometric_float64(max_derivative=1)
 
-            self.test_1d_polynomial_float32(max_derivative=3)
-            self.test_2d_polynomial_float32(max_derivative=2)
+            # self.test_1d_polynomial_float32(max_derivative=3)
+            # self.test_2d_polynomial_float32(max_derivative=2)
             self.test_3d_polynomial_float32(max_derivative=1)
 
 if __name__ == '__main__':