I have a small infiniband network using RDMA. Having IBACM enabled causes problems with one of our programs (RDMA_CM_EVENT_CONNECT_ERROR). When we disable IBACM, everything runs smoothly. We have 10 servers, but at any given time, only 4 are using infiniband, and the bandwidth is small (but response time required is 2ms). My team doesn't have anyone experienced with infiniband on it, so I'm asking the community for an informed opinion: is IBACM required?
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