Note
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2.17. Using simulation trackers
This example illustrates how trackers can be used to analyze simulations.

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import pde
grid = pde.UnitGrid([32, 32]) # generate grid
state = pde.ScalarField.random_uniform(grid) # generate initial condition
storage = pde.MemoryStorage()
trackers = [
"progress", # show progress bar during simulation
"steady_state", # abort when steady state is reached
storage.tracker(interval=1), # store data every simulation time unit
pde.PlotTracker(show=True), # show images during simulation
# print some output every 5 real seconds:
pde.PrintTracker(interval=pde.RealtimeInterrupts(duration=5)),
]
eq = pde.DiffusionPDE(0.1) # define the PDE
eq.solve(state, 3, dt=0.1, tracker=trackers)
for field in storage:
print(field.integral)
Total running time of the script: (0 minutes 5.602 seconds)