Changeset 7105 for anuga_core/source/anuga/shallow_water/test_shallow_water_domain.py

Timestamp:

May 27, 2009, 4:25:47 PM (14 years ago)

Author:

ole

Message:

Optimised compute_fluxes by disabling limitation of momentum perpendicular to the x-axis. Speeds calculated from the x-momentum are still being limited according to the _compute_speeds. All tests pass and the overall improvement is as follows:
For the simple profile compute_fluxes improved from 4.284s to 3.372s and the overall runtime of evolve from 10.909s to 9.941s. This is an overall speedup of more than 8%.

For the okushiri profile example the improvement of compute_fluxes is from 129.432s to 111.703s and the overall runtime was reduced from 312.336s to 293.286s or about 6% improvement. This is probably the more realistic profile.

File:

• anuga_core/source/anuga/shallow_water/test_shallow_water_domain.py (modified) (2 diffs)

anuga_core/source/anuga/shallow_water/test_shallow_water_domain.py

@@ -1616 +1616 @@
             assert num.allclose(w_t, w)
             assert num.allclose(uh_t, uh)            
-            assert num.allclose(vh_t, 0.0)                        
+            assert num.allclose(vh_t, 0.0, atol=1.0e-6)                        
             
             
@@ -1712 +1712 @@
             assert num.allclose(w_t, w)
             assert num.allclose(uh_t, uh)            
-            assert num.allclose(vh_t, 0.0)                        
+            assert num.allclose(vh_t, 0.0, atol=1.0e-6)