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Subject: Re: [OMPI users] Implementation of TCP v/s OpenIB (Eager and Rendezvous) protocols
From: Siddhartha Jana (siddharthajana24_at_[hidden])
Date: 2014-01-31 02:49:42

Sorry for the typo:
** I was hoping to understand the impact of OpenMPI's implementation of
these protocols using traditional TCP.

This is the paper I was referring to:
Woodall, et al., "High Performance RDMA Protocols in HPC".

On 31 January 2014 00:43, Siddhartha Jana <siddharthajana24_at_[hidden]>wrote:

> Good evening
> Is there any documentation describing the difference in MPI-level
> implementation of the eager and rendezvous protocols in OpenIB BTL versus
> I am only aware of 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