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Don't limit fusions with foreach scheduler nodes #104471

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Don't limit fusions with foreach scheduler nodes #104471

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6 changes: 5 additions & 1 deletion torch/_inductor/scheduler.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1176,7 +1176,11 @@ def can_fuse(self, node1: BaseSchedulerNode, node2: BaseSchedulerNode):
):
return False # heuristic not needed for correctness

if len(node1.get_nodes()) + len(node2.get_nodes()) > config.max_fusion_size:
if (
not node1.is_foreach()
and not node2.is_foreach()
and len(node1.get_nodes()) + len(node2.get_nodes()) > config.max_fusion_size
):
return False # heuristic not needed for correctness

if node1.get_names() & node2.recursive_predecessors:
Expand Down