dgl.function.e_mul_u¶
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dgl.function.
e_mul_u
(lhs_field, rhs_field, out)¶ Builtin message function that computes a message on an edge by performing element-wise mul between features of e and u if the features have the same shape; otherwise, it first broadcasts the features to a new shape and performs the element-wise operation.
Broadcasting follows NumPy semantics. Please see https://docs.scipy.org/doc/numpy/user/basics.broadcasting.html for more details about the NumPy broadcasting semantics.
- Parameters
Examples
>>> import dgl >>> message_func = dgl.function.e_mul_u('h', 'h', 'm')