<div>Recently , I have seen the source code of the up*/down* routing algorithm. It still uses the BFS to generate the spanning tree, whoes performance is inferior to the improved one which uses DFS to generate the spanning tree.</div>
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<div>DFS have been proposed in paper "New Methodology to Compute Deadlock-Free Routing Tables for Irregular Networks", which can increase throughput and reduce latency. So I think that It's a better idea to use DFS to generate the spanning tree in up*/down* routing algorithm.</div>
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<div>Why not use DFS in up*/down* routing algorithm ? Is it hard to implement or some other reason ?</div>
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