def solve_cpu(currentmodelrun, modelend, G):
"""
Solving using FDTD method on CPU. Parallelised using Cython (OpenMP) for
electric and magnetic field updates, and PML updates.
Args:
currentmodelrun (int): Current model run number.
modelend (int): Number of last model to run.
G (class): Grid class instance - holds essential parameters describing the model.
Returns:
tsolve (float): Time taken to execute solving
"""
tsolvestart = timer()
for iteration in tqdm(range(G.iterations), desc='Running simulation, model ' + str(currentmodelrun) + '/' + str(modelend), ncols=get_terminal_width() - 1, file=sys.stdout, disable=not G.progressbars):
# Store field component values for every receiver and transmission line
store_outputs(iteration, G.Ex, G.Ey, G.Ez, G.Hx, G.Hy, G.Hz, G)
# Store any snapshots
for snap in G.snapshots:
if snap.time == iteration + 1:
snap.store(G)
# Update magnetic field components
update_magnetic(G.nx, G.ny, G.nz, G.nthreads, G.updatecoeffsH, G.ID, G.Ex, G.Ey, G.Ez, G.Hx, G.Hy, G.Hz)
# Update magnetic field components with the PML correction
for pml in G.pmls:
pml.update_magnetic(G)
# Update magnetic field components from sources
for source in G.transmissionlines + G.magneticdipoles:
source.update_magnetic(iteration, G.updatecoeffsH, G.ID, G.Hx, G.Hy, G.Hz, G)
# Update electric field components
# All materials are non-dispersive so do standard update
if Material.maxpoles == 0:
update_electric(G.nx, G.ny, G.nz, G.nthreads, G.updatecoeffsE, G.ID, G.Ex, G.Ey, G.Ez, G.Hx, G.Hy, G.Hz)
# If there are any dispersive materials do 1st part of dispersive update
# (it is split into two parts as it requires present and updated electric field values).
elif Material.maxpoles == 1:
update_electric_dispersive_1pole_A(G.nx, G.ny, G.nz, G.nthreads, G.updatecoeffsE, G.updatecoeffsdispersive, G.ID, G.Tx, G.Ty, G.Tz, G.Ex, G.Ey, G.Ez, G.Hx, G.Hy, G.Hz)
elif Material.maxpoles > 1:
update_electric_dispersive_multipole_A(G.nx, G.ny, G.nz, G.nthreads, Material.maxpoles, G.updatecoeffsE, G.updatecoeffsdispersive, G.ID, G.Tx, G.Ty, G.Tz, G.Ex, G.Ey, G.Ez, G.Hx, G.Hy, G.Hz)
# Update electric field components with the PML correction
for pml in G.pmls:
pml.update_electric(G)
# Update electric field components from sources (update any Hertzian dipole sources last)
for source in G.voltagesources + G.transmissionlines + G.hertziandipoles:
source.update_electric(iteration, G.updatecoeffsE, G.ID, G.Ex, G.Ey, G.Ez, G)
# If there are any dispersive materials do 2nd part of dispersive update
# (it is split into two parts as it requires present and updated electric
# field values). Therefore it can only be completely updated after the
# electric field has been updated by the PML and source updates.
if Material.maxpoles == 1:
update_electric_dispersive_1pole_B(G.nx, G.ny, G.nz, G.nthreads, G.updatecoeffsdispersive, G.ID, G.Tx, G.Ty, G.Tz, G.Ex, G.Ey, G.Ez)
elif Material.maxpoles > 1:
update_electric_dispersive_multipole_B(G.nx, G.ny, G.nz, G.nthreads, Material.maxpoles, G.updatecoeffsdispersive, G.ID, G.Tx, G.Ty, G.Tz, G.Ex, G.Ey, G.Ez)
tsolve = timer() - tsolvestart
return tsolve
def solve_cpu(currentmodelrun, modelend, G):
"""
Solving using FDTD method on CPU. Parallelised using Cython (OpenMP) for
electric and magnetic field updates, and PML updates.
Args:
currentmodelrun (int): Current model run number.
modelend (int): Number of last model to run.
G (class): Grid class instance - holds essential parameters describing the model.
Returns:
tsolve (float): Time taken to execute solving
"""
tsolvestart = perf_counter()
for iteration in tqdm(range(G.iterations), desc='Running simulation, model ' + str(currentmodelrun) + '/' + str(modelend), ncols=get_terminal_width() - 1, file=sys.stdout, disable=G.tqdmdisable):
# Store field component values for every receiver and transmission line
store_outputs(iteration, G.Ex, G.Ey, G.Ez, G.Hx, G.Hy, G.Hz, G)
# Write any snapshots to file
for i, snap in enumerate(G.snapshots):
if snap.time == iteration + 1:
snapiters = 36 * (((snap.xf - snap.xs) / snap.dx) * ((snap.yf - snap.ys) / snap.dy) * ((snap.zf - snap.zs) / snap.dz))
pbar = tqdm(total=snapiters, leave=False, unit='byte', unit_scale=True, desc=' Writing snapshot file {} of {}, {}'.format(i + 1, len(G.snapshots), os.path.split(snap.filename)[1]), ncols=get_terminal_width() - 1, file=sys.stdout, disable=G.tqdmdisable)
snap.write_vtk_imagedata(G.Ex, G.Ey, G.Ez, G.Hx, G.Hy, G.Hz, G, pbar)
pbar.close()
# Update magnetic field components
update_magnetic(G.nx, G.ny, G.nz, G.nthreads, G.updatecoeffsH, G.ID, G.Ex, G.Ey, G.Ez, G.Hx, G.Hy, G.Hz)
# Update magnetic field components with the PML correction
for pml in G.pmls:
pml.update_magnetic(G)
# Update magnetic field components from sources
for source in G.transmissionlines + G.magneticdipoles:
source.update_magnetic(iteration, G.updatecoeffsH, G.ID, G.Hx, G.Hy, G.Hz, G)
# Update electric field components
# All materials are non-dispersive so do standard update
if Material.maxpoles == 0:
update_electric(G.nx, G.ny, G.nz, G.nthreads, G.updatecoeffsE, G.ID, G.Ex, G.Ey, G.Ez, G.Hx, G.Hy, G.Hz)
# If there are any dispersive materials do 1st part of dispersive update
# (it is split into two parts as it requires present and updated electric field values).
elif Material.maxpoles == 1:
update_electric_dispersive_1pole_A(G.nx, G.ny, G.nz, G.nthreads, G.updatecoeffsE, G.updatecoeffsdispersive, G.ID, G.Tx, G.Ty, G.Tz, G.Ex, G.Ey, G.Ez, G.Hx, G.Hy, G.Hz)
elif Material.maxpoles > 1:
update_electric_dispersive_multipole_A(G.nx, G.ny, G.nz, G.nthreads, Material.maxpoles, G.updatecoeffsE, G.updatecoeffsdispersive, G.ID, G.Tx, G.Ty, G.Tz, G.Ex, G.Ey, G.Ez, G.Hx, G.Hy, G.Hz)
# Update electric field components with the PML correction
for pml in G.pmls:
pml.update_electric(G)
# Update electric field components from sources (update any Hertzian dipole sources last)
for source in G.voltagesources + G.transmissionlines + G.hertziandipoles:
source.update_electric(iteration, G.updatecoeffsE, G.ID, G.Ex, G.Ey, G.Ez, G)
# If there are any dispersive materials do 2nd part of dispersive update
# (it is split into two parts as it requires present and updated electric
# field values). Therefore it can only be completely updated after the
# electric field has been updated by the PML and source updates.
if Material.maxpoles == 1:
update_electric_dispersive_1pole_B(G.nx, G.ny, G.nz, G.nthreads, G.updatecoeffsdispersive, G.ID, G.Tx, G.Ty, G.Tz, G.Ex, G.Ey, G.Ez)
elif Material.maxpoles > 1:
update_electric_dispersive_multipole_B(G.nx, G.ny, G.nz, G.nthreads, Material.maxpoles, G.updatecoeffsdispersive, G.ID, G.Tx, G.Ty, G.Tz, G.Ex, G.Ey, G.Ez)
tsolve = perf_counter() - tsolvestart
return tsolve