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Subject: [OMPI users] infiniband with MPI
From: Joen Chen (joen_at_[hidden])
Date: 2012-07-31 00:14:10

Hi every one!

After reading the FAQ about OFED, I knew that openMPI can collaborate with
RoCE. Moreover, using the RoCE make some overhead because the underlying
network layers. In my infiniband bandwidth testing, I get the 5Gbps using
IPoIB and 12Gbps using RDMA. The performance gap is huge for my application.

My question is: Could the OpenMPI use the RDMA raw api not via network

Best regards
Joen Chen