def test_NS2D(args):
config.update(
{
'nu': 0.01,
'dt': 0.05,
'T': 10
}, 'doublyperiodic')
solver = get_solver(regression_test=regression_test,
mesh='doublyperiodic',
parse_args=args)
context = solver.get_context()
initialize(solver, **context)
solve(solver, context)
config.params.dealias = '3/2-rule'
initialize(solver, **context)
solve(solver, context)
config.params.dealias = '2/3-rule'
config.params.optimization = 'cython'
reload_module(solver)
initialize(solver, **context)
solve(solver, context)
config.params.write_result = 1
config.params.checkpoint = 1
config.params.dt = 0.01
config.params.t = 0.0
config.params.tstep = 0
config.params.T = 0.04
solver.regression_test = lambda c: None
initialize(solver, **context)
solve(solver, context)
def test_solvers(sol):
config.update({
'nu': 0.000625, # Viscosity
'dt': 0.01, # Time step
'T': 0.1, # End time
'convection': 'Vortex'
})
solver = get_solver(regression_test=regression_test, parse_args=sol)
context = solver.get_context()
initialize(solver, context)
solve(solver, context)
config.params.make_profile = 1
config.params.dealias = '3/2-rule'
initialize(solver, context)
solve(solver, context)
config.params.dealias = '2/3-rule'
for opt in ('cython', 'numba', 'pythran'):
config.params.optimization = opt
reload_module(solver) # To load optimized methods
initialize(solver, context)
solve(solver, context)
config.params.write_result = 2
config.params.checkpoint = 2
config.params.dt = 0.01
config.params.t = 0.0
config.params.tstep = 0
config.params.T = 0.04
solver.regression_test = lambda c: None
solve(solver, context)
def test_MHD(sol):
config.update({
'nu': 0.000625, # Viscosity
'dt': 0.01, # Time step
'T': 0.1, # End time
'eta': 0.01,
'L': [2 * pi, 4 * pi, 6 * pi],
'M': [4, 5, 6],
'convection': 'Divergence'
})
solver = get_solver(regression_test=regression_test, parse_args=sol)
context = solver.get_context()
initialize(**context)
solve(solver, context)
config.params.dealias = '3/2-rule'
initialize(**context)
solve(solver, context)
config.params.dealias = '2/3-rule'
config.params.optimization = 'cython'
reload_module(solver)
initialize(**context)
solve(solver, context)
config.params.write_result = 1
config.params.checkpoint = 1
config.dt = 0.01
config.params.t = 0.0
config.params.tstep = 0
config.T = 0.04
solver.regression_test = lambda c: None
solve(solver, context)
def test_NS2D(args):
config.update({'nu': 0.01, 'dt': 0.05, 'T': 10}, 'doublyperiodic')
solver = get_solver(regression_test=regression_test,
mesh='doublyperiodic',
parse_args=args)
context = solver.get_context()
initialize(**context)
solve(solver, context)
config.params.dealias = '3/2-rule'
initialize(**context)
solve(solver, context)
config.params.dealias = '2/3-rule'
config.params.optimization = 'cython'
reload_module(solver)
initialize(**context)
solve(solver, context)
config.params.write_result = 1
config.params.checkpoint = 1
config.params.dt = 0.01
config.params.t = 0.0
config.params.tstep = 0
config.params.T = 0.04
solver.regression_test = lambda c: None
initialize(**context)
solve(solver, context)
def test_integrators(sol):
config.update({
'nu': 0.000625, # Viscosity
'dt': 0.01, # Time step
'T': 0.1, # End time
'convection': 'Vortex'
})
solver = get_solver(regression_test=regression_test, parse_args=sol)
context = solver.get_context()
for integrator in ('RK4', 'ForwardEuler', 'AB2', 'BS5_adaptive',
'BS5_fixed'):
if integrator in ('ForwardEuler', 'AB2'):
config.params.ntol = 4
else:
config.params.ntol = 7
config.params.integrator = integrator
initialize(solver, context)
solve(solver, context)
def test_integrators(sol):
config.update(
{
'nu': 0.000625, # Viscosity
'dt': 0.01, # Time step
'T': 0.1, # End time
'convection': 'Vortex'
}
)
solver = get_solver(regression_test=regression_test, parse_args=sol)
context = solver.get_context()
for integrator in ('RK4', 'ForwardEuler', 'AB2', 'BS5_adaptive', 'BS5_fixed'):
if integrator in ('ForwardEuler', 'AB2'):
config.params.ntol = 4
else:
config.params.ntol = 7
config.params.integrator = integrator
initialize(solver, context)
solve(solver, context)
def test_channel(sol):
config.update(
{
'Re': 8000.,
'nu': 1. / 8000., # Viscosity
'dt': 0.001, # Time step
'T': 0.01, # End time
'L': [2 * pi, pi, 2],
'M': [2, 5, 7],
'eps': 1e-7
},
"channel")
solver = get_solver(regression_test=regression_test,
mesh="channel",
parse_args=[sol])
context = solver.get_context()
initialize(solver, context)
set_Source(**context)
solve(solver, context)
config.params.dealias = '3/2-rule'
config.params.optimization = 'cython'
reload_module(solver) # Need to reload to enable optimization
initialize(solver, context)
solve(solver, context)
config.params.dealias_cheb = True
config.params.checkpoint = 5
config.params.write_result = 2
initialize(solver, context)
solve(solver, context)
def test_channel(sol):
if sol in ('IPCS', 'IPCSR', 'KMM_mpifft4py', 'KMMRK3_mpifft4py'):
pytest.skip(sol+' not currently working')
config.update(
{
'Re': 8000.,
'nu': 1./8000., # Viscosity
'dt': 0.001, # Time step
'T': 0.01, # End time
'L': [2, 2*pi, 4*pi/3.],
'M': [7, 5, 2],
'eps': 1e-7
}, "channel"
)
solver = get_solver(regression_test=regression_test,
mesh="channel",
parse_args=[sol])
context = solver.get_context()
initialize(solver, context)
set_Source(**context)
solve(solver, context)
config.params.dealias = '3/2-rule'
config.params.optimization = 'cython'
reload_module(solver) # Need to reload to enable optimization
initialize(solver, context)
solve(solver, context)
config.params.dealias_cheb = True
config.params.checkpoint = 5
config.params.write_result = 2
initialize(solver, context)
solve(solver, context)
def test_channel(sol):
config.update(
{
'Re': 8000.,
'nu': 1./8000., # Viscosity
'dt': 0.001, # Time step
'T': 0.01, # End time
'L': [2, 2*pi, 4*pi/3.],
'M': [7, 5, 2],
'eps': 1e-7
}, "channel"
)
solver = get_solver(regression_test=regression_test,
mesh="channel",
parse_args=[sol])
context = solver.get_context()
initialize(solver, context)
set_Source(**context)
solve(solver, context)
config.params.dealias = '3/2-rule'
config.params.optimization = 'cython'
reload_module(solver) # Need to reload to enable optimization
initialize(solver, context)
solve(solver, context)
config.params.dealias_cheb = True
config.params.checkpoint = 5
config.params.write_result = 2
initialize(solver, context)
solve(solver, context)
def test_solvers(sol):
config.update(
{
'nu': 0.000625, # Viscosity
'dt': 0.01, # Time step
'T': 0.1, # End time
'convection': 'Vortex'
}
)
solver = get_solver(regression_test=regression_test,
parse_args=sol)
context = solver.get_context()
initialize(solver, context)
solve(solver, context)
config.params.make_profile = 1
config.params.dealias = '3/2-rule'
initialize(solver, context)
solve(solver, context)
config.params.dealias = '2/3-rule'
for opt in ('cython', 'numba', 'pythran'):
config.params.optimization = opt
reload_module(solver) # To load optimized methods
initialize(solver, context)
solve(solver, context)
config.params.write_result = 2
config.params.checkpoint = 2
config.params.dt = 0.01
config.params.t = 0.0
config.params.tstep = 0
config.params.T = 0.04
solver.regression_test = lambda c: None
solve(solver, context)
solver.comm.Gather(u0, uall, root=0)
if solver.rank == 0:
uall = uall.reshape((params.N[0],))
x0 = context.X[0][:, 0, 0]
#x = x0
#pc = zeros(len(x))
#pc = ST.fct(uall, pc) # Cheb transform of result
#solution at x = 0
#u = n_cheb.chebval(0, pc)
#u_exact = reference(params.Re, params.t)
u_exact = exact(x0, params.Re, params.t)
print("Computed error = %2.8e %2.8e " %(np.sqrt(np.sum((uall-u_exact)**2)/params.N[0]), params.dt))
if __name__ == "__main__":
config.update(
{'Re': 800.,
'nu': 1./800., # Viscosity
'dt': 0.5, # Time step
'T': 50., # End time
'L': [2, 2*np.pi, 4*np.pi/3.],
'M': [6, 5, 2]
}, "channel"
)
config.channel.add_argument("--compute_energy", type=int, default=5)
config.channel.add_argument("--plot_step", type=int, default=10)
solver = get_solver(update=update, regression_test=regression_test, mesh="channel")
context = solver.get_context()
initialize(**context)
set_Source(**context)
solve(solver, context)
curl = solver.get_curl(**context)
im.set_data(curl[:, :])
im.autoscale()
plt.pause(1e-6)
def regression_test(context):
params = config.params
solver = config.solver
dx, L = params.dx, params.L
U = solver.get_velocity(**context)
k = solver.comm.reduce(sum(U.astype(float64)*U.astype(float64))*dx[0]*dx[1]/L[0]/L[1]/2)
U[0] = -sin(context.X[1])*cos(context.X[0])*exp(-2*params.nu*params.t)
U[1] = sin(context.X[0])*cos(context.X[1])*exp(-2*params.nu*params.t)
ke = solver.comm.reduce(sum(U.astype(float64)*U.astype(float64))*dx[0]*dx[1]/L[0]/L[1]/2)
if solver.rank == 0:
print("Error {}".format(k-ke))
assert round(float(k - ke), params.ntol) == 0
if __name__ == '__main__':
config.update(
{'nu': 0.01,
'dt': 0.05,
'T': 10,
'write_result': 100,
'M': [6, 6]}, 'doublyperiodic')
config.doublyperiodic.add_argument("--plot_result", type=int, default=10) # required to allow overloading through commandline
sol = get_solver(update=update, regression_test=regression_test, mesh="doublyperiodic")
context = sol.get_context()
initialize(sol, **context)
solve(sol, context)
U[0] = -sin(context.X[1]) * cos(context.X[0]) * exp(
-2 * params.nu * params.t)
U[1] = sin(context.X[0]) * cos(context.X[1]) * exp(
-2 * params.nu * params.t)
ke = solver.comm.reduce(
sum(U.astype(float64) * U.astype(float64)) * dx[0] * dx[1] / L[0] /
L[1] / 2)
if solver.rank == 0:
print("Error {}".format(k - ke))
assert round(k - ke, params.ntol) == 0
if __name__ == '__main__':
config.update(
{
'nu': 0.01,
'dt': 0.05,
'T': 10,
'write_result': 100,
'M': [6, 6]
}, 'doublyperiodic')
config.doublyperiodic.add_argument(
"--plot_result", type=int,
default=10) # required to allow overloading through commandline
sol = get_solver(update=update,
regression_test=regression_test,
mesh="doublyperiodic")
context = sol.get_context()
initialize(**context)
solve(sol, context)
# current timestep
U_hat[:] = f["U/Vector/3D/0"][su]
context.g[:] = 1j*context.K[1]*U_hat[2] - 1j*context.K[2]*U_hat[1]
f.close()
if __name__ == "__main__":
config.update(
{'nu': 1./180., # Viscosity
'Re_tau': 180.,
'dt': 0.0005, # Time step
'T': 100., # End time
'L': [2, 2*np.pi, np.pi],
'M': [6, 6, 6],
'dealias': '3/2-rule'
}, "channel"
)
config.channel.add_argument("--compute_energy", type=int, default=10)
config.channel.add_argument("--plot_result", type=int, default=100)
config.channel.add_argument("--sample_stats", type=int, default=1000)
config.channel.add_argument("--print_energy0", type=int, default=10)
#solver = get_solver(update=update, mesh="channel")
solver = get_solver(update=update, mesh="channel")
context = solver.get_context()
initialize(solver, context)
#init_from_file("KMM666d.h5_c.h5", solver, context)
set_Source(**context)
solver.stats = Stats(context.U, solver.comm, filename="KMMstatsq")
context.hdf5file.filename = "KMM666e"
solve(solver, context)
