1 | """Example of shallow water wave equation. |
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2 | |
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3 | This version is for profiling of timestepping |
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4 | """ |
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5 | |
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6 | ###################### |
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7 | # Module imports |
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8 | from anuga.shallow_water import Domain, Reflective_boundary |
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9 | from mesh_factory import rectangular |
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10 | from Numeric import array |
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11 | |
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12 | |
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13 | ###################### |
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14 | # Domain |
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15 | |
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16 | #N = 16 #Should take less than 0.1 s |
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17 | #N = 64 #Should take less than 3s |
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18 | N = 128 #Should take less than 20s |
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19 | |
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20 | |
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21 | print 'Creating domain' |
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22 | #Create basic mesh |
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23 | points, vertices, boundary = rectangular(N, N) |
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24 | |
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25 | #Create shallow water domain |
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26 | domain = Domain(points, vertices, boundary) |
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27 | domain.set_default_order(2) |
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28 | domain.set_quantities_to_be_stored(None) |
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29 | |
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30 | |
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31 | print 'Setting initial conditions' |
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32 | |
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33 | def slope(x, y): |
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34 | return -x |
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35 | |
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36 | domain.set_quantity('elevation', slope) |
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37 | domain.set_quantity('friction', 0.03) |
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38 | domain.set_quantity('stage', expression = 'elevation + 0.5') |
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39 | |
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40 | |
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41 | |
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42 | print 'Setting boundary conditions' |
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43 | Br = Reflective_boundary(domain) |
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44 | domain.set_boundary({'left': Br, 'right': Br, 'bottom': Br, 'top': Br}) |
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45 | |
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46 | |
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47 | #print 'Checking integrity' |
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48 | #domain.check_integrity() |
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49 | |
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50 | |
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51 | ###################### |
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52 | #Evolution |
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53 | |
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54 | import time |
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55 | t0 = time.time() |
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56 | |
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57 | s = 'for t in domain.evolve(yieldstep = 0.02, finaltime = 0.2): domain.write_time()' |
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58 | |
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59 | |
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60 | import profile, pstats |
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61 | FN = 'profile.dat' |
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62 | |
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63 | profile.run(s, FN) |
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64 | |
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65 | print 'That took %.2f seconds' %(time.time()-t0) |
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66 | |
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67 | S = pstats.Stats(FN) |
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68 | #S.sort_stats('time').print_stats(20) |
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69 | s = S.sort_stats('cumulative').print_stats(30) |
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70 | |
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71 | print s |
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