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Unverified Commit 6f603bbf authored by Lingfan Yu's avatar Lingfan Yu Committed by GitHub
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[BugFix] Fix performance bug in EdgeSoftmax (#452) 

* fix performance bug in EdgeSoftmax

* minor
parent 681e5217
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python/dgl/nn/pytorch/softmax.py
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...@@ -84,6 +84,8 @@ class EdgeSoftmax(nn.Module): ...@@ -84,6 +84,8 @@ class EdgeSoftmax(nn.Module):
graph.apply_edges( graph.apply_edges(
lambda edges: {self._logits_name : th.exp(edges.data[self._logits_name] - lambda edges: {self._logits_name : th.exp(edges.data[self._logits_name] -
edges.dst[self._max_logits_name])}) edges.dst[self._max_logits_name])})
# pop out temporary feature _max_logits, otherwise get_ndata_name could have huge overhead
graph.ndata.pop(self._max_logits_name)
# compute normalizer # compute normalizer
graph.update_all(fn.copy_edge(self._logits_name, self._logits_name), graph.update_all(fn.copy_edge(self._logits_name, self._logits_name),
fn.sum(self._logits_name, self._normalizer_name)) fn.sum(self._logits_name, self._normalizer_name))
......
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