def plot2dParticles(ax, n, conf, downsample=0):
#ax.clear()
#ax.cla()
plotNode(ax, n, conf)
#plotTileBoundaries(ax, n, conf)
prtcl = get_particles(n, conf, 0)
Np = len(prtcl.xs)
#print("particles to plot: {}".format(Np))
if downsample > 0:
rindxs = random.sample(range(0, Np - 1), int(downsample * Np))
prtcl.xs = np.array(prtcl.xs)
prtcl.ys = np.array(prtcl.ys)
prtcl.zs = np.array(prtcl.zs)
prtcl.xs = prtcl.xs[rindxs]
prtcl.ys = prtcl.ys[rindxs]
prtcl.zs = prtcl.zs[rindxs]
ax.plot(prtcl.xs, prtcl.ys, ".", color='red')
def test_boundary_construction(self):
conf = Conf()
# set up plotting and figure
try:
plt.fig = plt.figure(1, figsize=(3, 3))
plt.rc('font', family='serif', size=12)
plt.rc('xtick')
plt.rc('ytick')
gs = plt.GridSpec(1, 1)
gs.update(hspace=0.5)
axs = []
for ai in range(1):
axs.append(plt.subplot(gs[ai]))
if not os.path.exists(conf.outdir):
os.makedirs(conf.outdir)
except:
pass
grid = pycorgi.twoD.Grid(conf.Nx, conf.Ny)
grid.set_grid_lims(conf.xmin, conf.xmax, conf.ymin, conf.ymax)
# one tile surrounded by other rank
refGrid = np.ones((conf.Nx, conf.Ny), np.int)
refGrid[1, 1] = 0
#setup grid configuration
if grid.master():
for j in range(grid.get_Ny()):
for i in range(grid.get_Nx()):
val = refGrid[i, j]
grid.set_mpi_grid(i, j, val)
grid.bcast_mpi_grid()
# add tiles
rank = grid.rank()
for i in range(grid.get_Nx()):
for j in range(grid.get_Ny()):
if rank == refGrid[i, j]:
c = pycorgi.twoD.Tile()
grid.add_tile(c, (i, j))
try:
plotNode(axs[0], grid, conf)
saveVisz(0, grid, conf)
except:
pass
if grid.size() > 1:
grid.analyze_boundaries()
#print(grid.rank(), ":sq ", grid.send_queue)
#print(grid.rank(), ":sqa", grid.send_queue_address)
if grid.size() > 1:
grid.send_tiles()
grid.recv_tiles()
try:
plotNode(axs[0], grid, conf)
saveVisz(1, grid, conf)
except:
pass
cur = readGrid(grid, conf)
#print(cur)
if grid.size() > 1:
for i in range(grid.get_Nx()):
for j in range(grid.get_Ny()):
self.assertEqual(refGrid[i, j], cur[i, j])
#initialize node
conf = Conf()
node = plasma.Grid(conf.Nx, conf.Ny)
node.setGridLims(conf.xmin, conf.xmax, conf.ymin, conf.ymax)
#node.initMpi()
#loadMpiXStrides(node)
loadCells(node, conf)
#insert initial current into the grid
injectRingCurrent(node, conf)
updateBoundaries(node)
#plot initial condition
plotNode(axs[0], node, conf)
plotEfield(axs[1], node, conf)
saveVisz(0, node, conf)
#main loop
for lap in range(1, 51):
print("---lap: {}".format(lap))
#B field
updateBoundaries(node)
for cid in node.getCellIds():
c = node.getCellPtr(cid)
c.pushHalfB()
c.pushHalfB()
#E field
#insert_em(grid, conf, linear_field)
#static setup; communicate neighbor info once
grid.analyze_boundaries()
grid.send_tiles()
grid.recv_tiles()
initialize_virtuals(grid, conf)
timer.stop("init")
timer.stats("init")
# end of initialization
##################################################
# visualize initial condition
#try:
plotNode(axs[0], grid, conf)
#plotXmesh(axs[1], grid, conf, 0, "x")
saveVisz(-1, grid, conf)
#except:
# print()
# pass
Nsamples = conf.Nt
fldprop = pyfld.FDTD2()
pusher = pypic.BorisPusher()
fintp = pypic.LinearInterpolator()
currint = pypic.ZigZag()
analyzer = pypic.Analyzator()
flt = pytools.Filter(conf.NxMesh, conf.NyMesh)
flt.init_gaussian_kernel(2.0, 2.0)
def skip_test_filters(self):
""" filter integration test with rest of the PIC functions"""
try:
plt.fig = plt.figure(1, figsize=(5,7))
plt.rc('font', family='serif', size=12)
plt.rc('xtick')
plt.rc('ytick')
gs = plt.GridSpec(8, 1)
axs = []
for ai in range(8):
axs.append( plt.subplot(gs[ai]) )
except:
pass
conf = Conf()
conf.Nx = 3
conf.Ny = 3
conf.Nz = 1
conf.NxMesh = 3
conf.NyMesh = 3
conf.NzMesh = 1
conf.ppc = 10
conf.vel = 0.1
conf.update_bbox()
grid = pycorgi.twoD.Grid(conf.Nx, conf.Ny, conf.Nz)
grid.set_grid_lims(conf.xmin, conf.xmax, conf.ymin, conf.ymax)
loadTiles(grid, conf)
#insert_em(grid, conf, linear_field)
insert_em(grid, conf, zero_field)
inject(grid, filler, conf) #injecting plasma particles
#inject(grid, filler_xvel, conf) #injecting plasma particles
#pusher = pypic.BorisPusher()
#fintp = pypic.LinearInterpolator()
currint = pypic.ZigZag()
analyzer = pypic.Analyzator()
flt = pytools.Filter(conf.NxMesh, conf.NyMesh)
flt.init_gaussian_kernel(1.0, 1.0)
#for lap in range(0, conf.Nt):
for lap in range(1):
#analyze
for j in range(grid.get_Ny()):
for i in range(grid.get_Nx()):
tile = grid.get_tile(i,j)
analyzer.analyze2d(tile)
#update boundaries
for j in range(grid.get_Ny()):
for i in range(grid.get_Nx()):
tile = grid.get_tile(i,j)
tile.update_boundaries(grid)
#deposit current
for j in range(grid.get_Ny()):
for i in range(grid.get_Nx()):
tile = grid.get_tile(i,j)
currint.solve(tile)
#exchange currents
for j in range(grid.get_Ny()):
for i in range(grid.get_Nx()):
tile = grid.get_tile(i,j)
tile.exchange_currents(grid)
try:
plotNode(axs[0], grid, conf)
#plot2dParticles(axs[0], grid, conf, downsample=0.1)
plot2dYee(axs[1], grid, conf, 'rho')
plot2dYee(axs[2], grid, conf, 'jx')
plot2dYee(axs[3], grid, conf, 'jy')
plot2dYee(axs[4], grid, conf, 'jz')
except:
pass
yee_ref = getYee2D(grid, conf)
#filter
for j in range(grid.get_Ny()):
for i in range(grid.get_Nx()):
print(" i j ({},{})".format(i,j))
tile = grid.get_tile(i,j)
flt.get_padded_current(tile, grid)
# fourier space filtering
flt.fft_image_forward()
flt.apply_kernel()
flt.fft_image_backward()
# direct filtering
#for fj in range(1):
# flt.direct_convolve_3point()
flt.set_current(tile)
#cycle new and temporary currents
for j in range(grid.get_Ny()):
for i in range(grid.get_Nx()):
tile = grid.get_tile(i,j)
tile.cycle_current()
yee = getYee2D(grid, conf)
try:
plot2dYee(axs[5], grid, conf, 'jx')
plot2dYee(axs[6], grid, conf, 'jy')
plot2dYee(axs[7], grid, conf, 'jz')
#saveVisz(lap, grid, conf)
except:
pass
for j in range(conf.Ny*conf.NyMesh):
for i in range(conf.Nx*conf.NxMesh):
#print("({},{})".format(i,j))
self.assertAlmostEqual( yee_ref['jx'][i,j], yee['jx'][i,j], places=6 )
self.assertAlmostEqual( yee_ref['jy'][i,j], yee['jy'][i,j], places=6 )
self.assertAlmostEqual( yee_ref['jz'][i,j], yee['jz'][i,j], places=6 )