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 layer?! Best regards Joen Chen