* rebase
* add ap metric
* fix mlti-gpu bug in retrevel
* rebase
* rebase
* add training cfgs and update readme.md
* fix bugs(cannot load vecs in dist and diff test-val recall\)
* update configs and readme
* fix ut
* fix doc
* rebase
* fix rebase conflicts
* fix rebase error
* fix UT error
* fix docs
* fix typo
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Co-authored-by: Ezra-Yu <18586273+Ezra-Yu@users.noreply.github.com>
takuoko