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authorEdoardo Pasca <edo.paskino@gmail.com>2019-07-01 22:08:15 +0100
committerEdoardo Pasca <edo.paskino@gmail.com>2019-07-01 22:08:15 +0100
commit5265eb1926ca362f786a0d2e216731ee4be8d97c (patch)
tree4515d144df300a817b5c73eedccc471ff26ffe03 /Wrappers/Python
parent8fec2c7984d2145f356ea272d62254c759524a86 (diff)
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Diffstat (limited to 'Wrappers/Python')
-rwxr-xr-xWrappers/Python/ccpi/optimisation/algorithms/CGLS.py63
1 files changed, 2 insertions, 61 deletions
diff --git a/Wrappers/Python/ccpi/optimisation/algorithms/CGLS.py b/Wrappers/Python/ccpi/optimisation/algorithms/CGLS.py
index 661780e..5a8341e 100755
--- a/Wrappers/Python/ccpi/optimisation/algorithms/CGLS.py
+++ b/Wrappers/Python/ccpi/optimisation/algorithms/CGLS.py
@@ -60,7 +60,7 @@ class CGLS(Algorithm):
def set_up(self, x_init, operator , data ):
- self.x = x_init.copy()
+ self.x = x_init * 0.
self.r = data - self.operator.direct(self.x)
self.s = self.operator.adjoint(self.r)
@@ -79,28 +79,6 @@ class CGLS(Algorithm):
self.loss.append(self.r.squared_norm())
self.configured = True
-# def set_up(self, x_init, operator , data ):
-#
-# self.r = data.copy()
-# self.x = x_init * 0
-#
-# self.operator = operator
-# self.d = operator.adjoint(self.r)
-#
-#
-# self.normr2 = self.d.squared_norm()
-#
-# self.s = self.operator.domain_geometry().allocate()
-# #if isinstance(self.normr2, Iterable):
-# # self.normr2 = sum(self.normr2)
-# #self.normr2 = numpy.sqrt(self.normr2)
-# #print ("set_up" , self.normr2)
-# n = Norm2Sq(operator, self.data)
-# self.loss.append(n(x_init))
-# self.configured = True
-
- #def update(self):
- # self.update_new()
def update(self):
@@ -122,34 +100,6 @@ class CGLS(Algorithm):
self.normx = self.x.norm()
self.xmax = numpy.maximum(self.xmax, self.normx)
-# def update_new(self):
-#
-# Ad = self.operator.direct(self.d)
-# norm = Ad.squared_norm()
-#
-# if norm <= 1e-3:
-# print ('norm = 0, cannot update solution')
-# #print ("self.d norm", self.d.squared_norm(), self.d.as_array())
-# raise StopIteration()
-# alpha = self.normr2/norm
-# if alpha <= 1e-3:
-# print ('alpha = 0, cannot update solution')
-# raise StopIteration()
-# self.d *= alpha
-# Ad *= alpha
-# self.r -= Ad
-#
-# self.x += self.d
-#
-# self.operator.adjoint(self.r, out=self.s)
-# s = self.s
-#
-# normr2_new = s.squared_norm()
-#
-# beta = normr2_new/self.normr2
-# self.normr2 = normr2_new
-# self.d *= (beta/alpha)
-# self.d += s
def update_objective(self):
a = self.r.squared_norm()
@@ -167,13 +117,4 @@ class CGLS(Algorithm):
self.update_objective()
print (self.verbose_output())
return flag
-
- #raise StopIteration()
-
-
-# if self.iteration > 0:
-# x = self.get_last_objective()
-# a = x > 0
-# return self.max_iteration_stop_cryterion() or (not a)
-# else:
-# return False
+