See more in doc/rdma.pdf
by Kaixi from Unique Studio of Huazhong University of Science and Technology.
Distributed communication of tensorflow is in git submodule gRpc. All files modified are in grpc. when transfer grpc to rdma version, modify Bazel build file: grpc.BUILD to use grpc rdma version.
gRPC code:
git clone https://github.com/kaixili/Tensorflow-RDMA
git clone Tensorflow-RDMA/src/grpc.git