CODEWITHSUNDEEP
tensorflowmpigrpcinfinibandrdma
JRL
JRL

Reputation: 31

Does gRPC+MPI require RDMA?

Tensorflow allows for the options "gRPC", "gRPC+verbs" and "gRPC+mpi" when specifying a communication protocol. In the gRPC+verbs documentation, it clearly states that this protocol is based on RDMA. Meanwhile, in the gRPC+MPI documentation, it doesn't imply this at all, and initially I assumed that gRPC+mpi can run on any underlying network. However, this research paper implies that gRPC+mpi is required to run over RDMA (see the end of page 3). Am I misinterpreting the research paper? Can gRPC+MPI in fact run over any network?

Upvotes: 0

Views: 1017

Answers (1)

JRL
JRL

Reputation: 31

I found the answer, page 4 of the same research paper indicates that the MPI channel is simply capable of supporting RDMA.

Upvotes: 3

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