[1590] | 1 | """Example of shallow water wave equation. |
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| 2 | |
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| 3 | This version is for profiling |
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| 4 | (The original) |
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[2380] | 5 | |
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| 6 | |
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| 7 | FIXME: This should really measure something else, such as profiling the set up of domains. |
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[1590] | 8 | """ |
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| 9 | |
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| 10 | ###################### |
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| 11 | # Module imports |
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| 12 | # |
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| 13 | from shallow_water import Domain, Reflective_boundary, Dirichlet_boundary,\ |
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| 14 | Transmissive_boundary, Time_boundary,\ |
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| 15 | Weir_simple as Weir, Constant_height |
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| 16 | |
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| 17 | from mesh_factory import rectangular |
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| 18 | from Numeric import array |
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| 19 | |
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| 20 | |
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| 21 | ###################### |
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| 22 | # Domain |
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| 23 | # |
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| 24 | |
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[1592] | 25 | N = 128 |
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[1590] | 26 | |
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| 27 | print 'Creating domain' |
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| 28 | #Create basic mesh |
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| 29 | points, vertices, boundary = rectangular(N, N) |
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| 30 | |
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| 31 | #Create shallow water domain |
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| 32 | domain = Domain(points, vertices, boundary) |
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| 33 | domain.default_order = 2 |
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[2380] | 34 | domain.set_quantities_to_be_stored(None) |
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[1592] | 35 | #domain.visualise = True |
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[1590] | 36 | |
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| 37 | |
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| 38 | print 'Field values' |
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| 39 | def slope(x, y): |
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| 40 | return -x |
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| 41 | |
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| 42 | domain.set_quantity('elevation', slope) |
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| 43 | domain.set_quantity('friction', 0.3) |
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| 44 | |
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| 45 | |
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| 46 | # Boundary conditions |
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| 47 | # |
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| 48 | Br = Reflective_boundary(domain) |
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| 49 | domain.set_boundary({'left': Br, 'right': Br, 'bottom': Br, 'top': Br}) |
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| 50 | |
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| 51 | |
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| 52 | ###################### |
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| 53 | #Initial condition |
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| 54 | domain.set_quantity('stage', Constant_height(slope, 0.3)) |
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| 55 | |
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| 56 | domain.check_integrity() |
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| 57 | |
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| 58 | |
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| 59 | ###################### |
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| 60 | #Evolution |
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| 61 | |
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| 62 | import time |
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| 63 | t0 = time.time() |
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| 64 | |
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| 65 | s = 'for t in domain.evolve(yieldstep = 0.02, finaltime = 0.2): domain.write_time()' |
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| 66 | |
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| 67 | |
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| 68 | |
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| 69 | import profile, pstats |
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| 70 | FN = 'profile.dat' |
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| 71 | |
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| 72 | profile.run(s, FN) |
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| 73 | |
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| 74 | print 'That took %.2f seconds' %(time.time()-t0) |
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| 75 | |
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| 76 | S = pstats.Stats(FN) |
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| 77 | #S.sort_stats('time').print_stats(20) |
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| 78 | s = S.sort_stats('cumulative').print_stats(30) |
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| 79 | |
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| 80 | print s |
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