def test_failsafe_sweep():
interpolate_expression = Expression('x[0]', degree=1)
mesh = UnitSquareMesh(5, 5)
V = FunctionSpace(mesh, "DG", 1)
v = Function(V)
v.assign(interpolate_expression)
np_min, np_max = 1, 2
np_failsafe = 4
# Initialize particles
x = RandomRectangle(Point(0.0, 0.0), Point(1., 1.)).generate([100, 100])
s = assign_particle_values(x, interpolate_expression)
# Broadcast to other procs
x = comm.bcast(x, root=0)
s = comm.bcast(s, root=0)
property_idx = 1
p = particles(x, [s], mesh)
AD = AddDelete(p, np_min, np_max, [v])
AD.do_sweep_failsafe(np_failsafe)
# Must recover linear
lstsq_rho = l2projection(p, V, property_idx)
lstsq_rho.project(v.cpp_object())
error = sqrt(
assemble(
(v - interpolate_expression) * (v - interpolate_expression) * dx))
assert len(p.positions() == mesh.num_cells() * np_failsafe)
assert error < 1e-12
area_0 = assemble(psi0_h * dx)
timer = Timer()
timer.start()
while step < num_steps:
step += 1
t += float(dt)
if comm.rank == 0:
print("Step " + str(step))
# Advect particle, assemble and solve pde projection
t1 = Timer("[P] Advect particles step")
AD.do_sweep()
ap.do_step(float(dt))
AD.do_sweep_failsafe(4)
del t1
if projection_type == "PDE":
t1 = Timer("[P] Assemble PDE system")
pde_projection.assemble(True, True)
del t1
t1 = Timer("[P] Solve projection")
pde_projection.solve_problem(psibar_h, psi_h, "mumps",
"default")
del t1
else:
t1 = Timer("[P] Solve projection")
lstsq_psi.project(psi_h)
del t1
while step < num_steps:
step += 1
t += float(dt)
if comm.Get_rank() == 0:
print("Step number " + str(step))
t1 = Timer("[P] Sweep and step")
# Limit number of particles
AD.do_sweep()
# Advect particles
ap.do_step(float(dt))
# Do failsafe sweep
AD.do_sweep_failsafe(7)
del t1
# Do constrained projection
t1 = Timer("[P] Assemble")
pde_projection.assemble(True, True)
del t1
t1 = Timer("[P] Solve")
pde_projection.solve_problem(ubar_a.cpp_object(), ustar.cpp_object(),
"bicgstab", "hypre_amg")
del t1
# Solve Stokes
t1 = Timer("[P] Stokes assemble")
ssc.assemble_global_system(True)
del t1
t = 0.
area_0 = assemble(psi0_h * dx)
timer = Timer()
timer.start()
while step < num_steps:
step += 1
t += float(dt)
if comm.rank == 0:
print("Step " + str(step))
# Advect particle, assemble and solve pde projection
t1 = Timer("[P] Advect particles step")
ap.do_step(float(dt))
AD.do_sweep_failsafe(4 * k)
del (t1)
t1 = Timer("[P] Assemble PDE system")
pde_projection.assemble(True, True)
# pde_projection.apply_boundary(bc)
del (t1)
t1 = Timer("[P] Solve PDE constrained projection")
pde_projection.solve_problem(psibar_h, psi_h, 'mumps', 'default')
del (t1)
t1 = Timer("[P] Update and store")
# Update old solution
assign(psi0_h, psi_h)
while step < num_steps:
step += 1
t += float(dt)
if comm.rank == 0:
print("Step number " + str(step))
# Limit number of particles
t1 = Timer("[P] advect particles")
AD.do_sweep()
# Advect particles
ap.do_step(float(dt))
# Do failsafe sweep
AD.do_sweep_failsafe(5)
del t1
# Do constrained projection
t1 = Timer("[P] assemble projection")
pde_projection.assemble(True, True)
del t1
t1 = Timer("[P] solve projection")
pde_projection.solve_problem(ubar_a.cpp_object(), ustar.cpp_object(),
lamb.cpp_object(), "mumps", "default")
del t1
# Solve Stokes
t1 = Timer("[P] Stokes assemble ")
ssc.assemble_global_system(True)
for bc in bcs:
ssc.apply_boundary(bc)