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Subject: [OMPI users] Implementation of TCP v/s OpenIB (Eager and Rendezvous) protocols
From: Siddhartha Jana (siddharthajana24_at_[hidden])
Date: 2014-01-31 01:43:11


Good evening
Is there any documentation describing the difference in MPI-level
implementation of the eager and rendezvous protocols in OpenIB BTL versus
TCP BTL ?

I am only aware of only the following paper. While this presents an
excellent overview of how RDMA capabilities of modern interconnects can be
leveraged for implementing these protocols, I was hoping to understand how
OpenMPI implications of handling these protocols using traditional TCP.

Thanks
Siddhartha