Yuqi Wang
Only backtrace to parent pod group may not enough to find the whole pod root group placement if it exist in theory. Consider the following example:  Only backtrace to...
> Add demo here, such as pods withinOneCell and single pod's non-leaf cell type #WontFix --- Refers to: example/feature/README.md:2 in c5e1bf1. [](commit_id = c5e1bf14e62631e2d9e2899694b72e154a8829b1, deletion_comment = False)
Not sure if we still support default scheduler. @abuccts to help