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fix the speed problem of the tie framework

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Zhenwen Dai 2014-06-24 18:01:16 +01:00
parent 525d9329ff
commit 08ed72b2f2
1 changed files with 6 additions and 1 deletions
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7
GPy/core/parameterization/ties_and_remappings.py
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@ -70,7 +70,12 @@ class Tie(Remapping):
#more than one of the tied things changed. panic.
raise ValueError, "something is wrong with the tieing"
def parameters_changed(self):
super(Tie,self).parameters_changed()
#ensure all out parameters have the correct value, as specified by our mapping
index = self._highest_parent_.constraints[self]
if (self._highest_parent_.param_array[index]==self.value).all():
return # STOP TRIGGER THE UPDATE LOOP MULTIPLE TIMES!!!
self._highest_parent_.param_array[index] = self.mapping()
[p.notify_observers(which=self) for p in self.tied_parameters]
self.collate_gradient()
def mapping(self):