1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
from __future__ import division
import unittest
import meep as mp
@unittest.skipIf(mp.count_processors() < 2, "MPI specific test")
class TestDivideParallelProcesses(unittest.TestCase):
def test_divide_parallel_processes(self):
resolution = 20
sxy = 4
dpml = 1
cell = mp.Vector3(sxy+2*dpml,sxy+2*dpml)
pml_layers = [mp.PML(dpml)]
n = mp.divide_parallel_processes(2)
fcen = 1.0/(n+1)
sources = [mp.Source(src=mp.GaussianSource(fcen,fwidth=0.2*fcen),
center=mp.Vector3(),
component=mp.Ez)]
symmetries = [mp.Mirror(mp.X),
mp.Mirror(mp.Y)]
self.sim = mp.Simulation(cell_size=cell,
resolution=resolution,
sources=sources,
symmetries=symmetries,
boundary_layers=pml_layers)
flux_box = self.sim.add_flux(fcen, 0, 1,
mp.FluxRegion(mp.Vector3(y=0.5*sxy), size=mp.Vector3(sxy)),
mp.FluxRegion(mp.Vector3(y=-0.5*sxy), size=mp.Vector3(sxy), weight=-1),
mp.FluxRegion(mp.Vector3(0.5*sxy), size=mp.Vector3(y=sxy)),
mp.FluxRegion(mp.Vector3(-0.5*sxy), size=mp.Vector3(y=sxy), weight=-1))
self.sim.run(until_after_sources=30)
tot_flux = mp.get_fluxes(flux_box)[0]
tot_fluxes = mp.merge_subgroup_data(tot_flux)
fcens = mp.merge_subgroup_data(fcen)
self.assertEqual(fcens[0],1)
self.assertEqual(fcens[1],0.5)
self.assertAlmostEqual(tot_fluxes[0], 9.8628728533)
self.assertAlmostEqual(tot_fluxes[1], 19.6537275387)
if __name__ == '__main__':
unittest.main()
|
