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View Code? Open in Web Editor NEWImplementation of A Level-Set Method for Magnetic Substance Simulation in the Taichi language.
License: MIT License
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Residual becomes nan after few iter steps
I tried run your project by python main_2d.py and used configs as below:
res = 8
solver = FerrofluidSimulator(2, (res, res), 1e-4, 1, 3.1250e-3)
# initializer = SphereInitializer2D(res, 0.5, 0.5, 0.2)
x0, y0, x1, y1 = 0.08, 0.2, 0.92, 0.45
initializer = Initializer2D(res, x0 + 0.03, y0 + 0.035, x1 - 0.02, y1 - 0.02, \
[[x0, y0, x1, y0 + 0.02], \
[x0, y0 + 0.02, x0 + 0.02, y1 + 0.02],
[x1 - 0.02, y0 + 0.02, x1, y1 + 0.02]])
visualizer = GUIVisualizer2D(res, 512, 'levelset', show_gui=False, output=True, text=True)
solver.initialize(initializer)
# print('self.sum after init:', solver.poisson_solver.sum[None])
solver.run(max_steps=50, visualizer=visualizer, verbose=True)
# ti.kernel_profiler_print()
But I got residual nan after first few steps:
I suspect that solver.poisson_solver.sum is the problem, as I found it very big after MGPCGPoissonSolver.reduce, but I'm not sure.
Could you please help me locate the problem? Thanks
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