Use local complete block and local reduction block to identify compact dataflow #10705
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Hzfengsy
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…t dataflow (apache#10705) * inint * upd * upd * remove redundant print * upd * change the reads/writes region for argmin/val * fix wrong push
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Per @Hzfengsy 's proposal: https://gist.github.com/Hzfengsy/eab83a98c0b034af1c6c7fac44bae741,
We use the concept of "local" complete block and "local" reduction block to identify whether a subtree has compact dataflow or not.
Compared to the original concept of complete block and reduction block, we only require a block to dominate a given subtree.