QDR Magnum infiniband Switch

During the sc08 Sun did showcase the new QDR Magnum infiniband Switch
QDR Magnum infibiband Switch


The SB6048 also introduce QDR NEM QNEM

  • 30 ports of 4x QDR InfiniBand and 24 ports of GbE

  • Up to 6:1 cable reduction as compared to competitive systems

  • Scalability up to 5,000+ node clusters


Sun PCIe Dual port QDR IB HCA and DDR FEM
QDR HCA, DDR FEM

General observation on QNEM:


  • Function as leaf switch

  • bases for 3 D torus IB Fibre

  • with other core switch one can build 3 stages or 5 stages or 7 stages IB fibre etc

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