【paddle.fleet】use the Floyd algorithm to find max path of meta optimizer#27867

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wangxicoding merged 1 commit intoPaddlePaddle:developfrom wangxicoding:fleet_meta_max_path

Oct 13, 2020

+162-16

Commits on Oct 12, 2020

use floyd algorithm to find meta optimizer max path, test=develop
wangxicoding
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