“86437a8dda6e7fc4e7a133136011f1f78908e898”上不存在“python/paddle/fluid/tests/unittests/test_allgather.py”
1. InferShape should be a method for `OpDescBind` not `Operator`, since `OpDescBind` is a compile-time concept. 2. Pre-create operators and store them into a map. Make InferShape faster