Hi, I'm trying to run a small benchmark with Infiniband and Ethernet to see the difference. I get strange results where OpenMPI seems to be slower with Infiniband than Ethernet. I'm using the 3.0.0 version.
Using the following parameters to enable Ethernet. --mca btl ^openib --mca btl_tcp_if_include 172.29.200.0/22 The slowdown is significant and I cannot explain why. Infiniband seems to be working fine. I ran some benchmarks on IB and it performs as expected. Thanks, Supun..
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