I have implemented a uDAPL program to measure the bandwidth on IB with
multirail connections.
The HCA used in the cluster is Mellanox ConnectX HCA. Each HCA has two
ports.
The program utilize the two port on each node of cluster to build
multirail IB connections.
The peak bandwidth I can get is ~ 1.3 GB/s (not bi-directional), which
is almost the same as single rail connections.
Does anyone have similar experience?
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