print '\tPerformed ii_assemble in %g s' % t.stop()
wh = ii_Function(W)
t = Timer('convert'); t.start()
AAm, bbm = map(ii_convert, (AA, bb))
print '\tPerformed ii_convert in %g s' % t.stop()
t = Timer('solve'); t.start()
LUSolver('umfpack').solve(AAm, wh.vector(), bbm)
print '\tSolved in %g s' % t.stop()
for i, wh_i in enumerate(wh):
wh_i.rename('u', str(i))
File('./u%d.pvd' % i) << wh_i
# --------------------------------------------------------------------
if __name__ == '__main__':
f = Expression('sin(pi*(x[0]+x[1]+x[2]))', degree=3)
# Setup the mesh_generator for the random curve
import meshing
# Using 1/4 of the default mesh sizes, the inner box is [-1/2, 1/2]^3
# and thee random curve will be made using 40 vertices
mesh_generator = lambda :meshing.load(scale=2./8,
inner_size=0.5,
curve_gen=lambda mesh: meshing.fun(mesh, 40))
main(f, mesh_generator)
parser.add_argument('-radius',
type=float,
default=0.1,
help='Radius of the tubes')
# Solver
parser.add_argument('-solver',
type=str,
default='direct',
choices=['direct', 'iterative'],
help='Use direct solver with params as in main')
args, petsc_args = parser.parse_known_args()
# Let's rock
mesh_gen = lambda: meshing.load(
args.scale, lambda mesh: meshing.fun(mesh, npoints=args.npoints))
timer = Timer('setup')
timer.start()
AA, bb, W, p_const = setup_problem(args.radius, mesh_gen)
print '\tProblem setup took %g s\n \tNumber of unknowns %d ' % (
timer.stop(), sum(Wi.dim() for Wi in W))
x = AA * bb
y = AA.transpmult(bb)
assert (x - y).norm() < 1E-14, 'AA is not symmetric!'
wh = ii_Function(W)
timer = Timer('solver')
timer.start()
help='Scale mesh size relative to definition in geo')
parser.add_argument('-npoints', type=int, default=80,
help='Num points to draw the curve')
parser.add_argument('-radius', type=float, default=0.1,
help='Radius of the tubes')
# Solver
parser.add_argument('-solver', type=str, default='direct', choices=['direct', 'iterative'],
help='Use direct solver with params as in main')
args, petsc_args = parser.parse_known_args()
# Let's rock
mesh_gen = lambda: meshing.load(args.scale,
lambda mesh: meshing.fun(mesh, npoints=args.npoints))
timer = Timer('setup'); timer.start()
AA, bb, W, p_const = setup_problem(args.radius, mesh_gen)
print '\tProblem setup took %g s\n \tNumber of unknowns %d ' % (timer.stop(), sum(Wi.dim() for Wi in W))
x = AA*bb
y = AA.transpmult(bb)
assert (x-y).norm() < 1E-14, 'AA is not symmetric!'
wh = ii_Function(W)
timer = Timer('solver'); timer.start()
if args.solver == 'direct':
# Convert
AAm, bbm = map(ii_convert, (AA, bb))