model = masking_tod * projection * masking_map
# naive map
map_naive = mapper_naive(tod, model)
# iterative map, taking all map pixels
class Callback():
def __init__(self):
self.niterations = 0
def __call__(self, x):
self.niterations += 1
invntt = DiagonalOperator(1 / obs.get_detector_stddev(100)**2,
broadcast='rightward')
norm = tamasis.linalg.norm2_ellipsoid(invntt)
precond = 1. / map_naive.coverage
precond[precond > 1] = 0
map_nl = mapper_nl(tod,
model,
tol=1.e-6,
maxiter=1000,
norms=[norm],
M=DiagonalOperator(precond),
callback=Callback())
print('Elapsed time:', map_nl.header['TIME'])
if map_nl.header['NITER'] > 21:
raise TestFailure()
masking_tod = MaskOperator(tod.mask)
masking_map = MaskOperator(projection.get_mask())
model = masking_tod * projection * masking_map
# naive map
map_naive = mapper_naive(tod, model)
# iterative map, taking all map pixels
class Callback():
def __init__(self):
self.niterations = 0
def __call__(self, x):
self.niterations += 1
invntt = DiagonalOperator(1/obs.get_detector_stddev(100)**2,
broadcast='rightward')
norm = tamasis.linalg.norm2_ellipsoid(invntt)
precond = 1./map_naive.coverage
precond[precond > 1] = 0
map_nl = mapper_nl(tod, model,
tol=1.e-6,
maxiter=1000,
norms=[norm],
M=DiagonalOperator(precond),
callback=Callback())
print('Elapsed time:', map_nl.header['TIME'])
if map_nl.header['NITER'] > 21:
raise TestFailure()
