pinpom commented on a change in pull request #522: SINGA 475 - add And operator
URL: https://github.com/apache/incubator-singa/pull/522#discussion_r315022274
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File path: python/singa/autograd.py
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@@ -2319,3 +2319,24 @@ def backward(self, dy):
def max(a,b):
return Max()(a,b)[0]
+
+class And(Operation):
+ def __init__(self):
+ super(And, self).__init__()
+
+ def forward(self, a, b):
+ m = singa.__div__(a,b)
Review comment:
i assume a/0 = un-defined. so in both cases, mask0 = singa.GEFloat(m,1) &
mask1 = singa.LEFloat(m,1) return 0 for any element of a/0. the test also
passed when b has 0s (b = np.array([0, -0.3, 0, 0.1, 0.5, 0.9])).
I am not sure if in computing there is error when trying to compute a/0?
please help to advise.
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