Hi,
I have a configuration consisting of 6 nodes connected through a single IB switch. I am sending data from a single node to all the remaining 5 nodes using IB multicast. I get a bandwidth of not more than 1.5 - 2 Gbps. I was expecting it to be around 10 Gbps(
i.e same as point to point b/w). Bandwidth here is defined as (total sent data from the source)/(time for getting completion acks from all the 5 nodes on receiving source data).
1. What could be the reason?
2. What is the expected bandwidth?
regards,
-Chev
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