Infiniband testing 19-dec-2012

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Testing Infiniband in Rack Room

Setup

  • Have 4 nodes, 16 cores each.
  • Each node has one GBit and one Infiniband port.
  • Infiniband switch rated at 20 Gbit/sec.
  • Running IP over Infiniband, which decreases effective throughput.
  • Run ET system and event producer on one node, run remote consumers on the others.
  • Event producer continually reads from file and inserts events into ET system.
  • Some consumers ust get events and dump them, others process the events.
  • Note: when using Ethernet instead of IB got about 95% bandwidth of a Gbit link (950 Mbits/sec).


Results using Infiniband