[mpich-discuss] mvapich and infiniband with LMC. How to set mpi rank - specific lid?

wind wind sssmolniy at mail.ru
Tue Feb 17 12:45:00 CST 2009


  Hi 
  How to set rank to specific lid ?
  I use MVAPICH 0.9.9
  
  For example I have 
     host0 ib0   base lid 10, multi lid 11 multi lid 12 ...
     host1 ib0   base lid 15, multi lid 16 multi lid 17 ...
     host2 ib0   base lid 20, multi lid 21 multi lid 22 ...
     LMC = 2

  Topology:
             switch0
           /          \
     switch1 -------  switch2
      /                 \    \
  host0                 host1 host2
  
  I can to set this routs with using LMC
      host1 -> switch2 -> switch1 -> host0
      host2 -> switch2 -> switch0 -> switch1 -> host0  

 How i can set this ratio:
      mpi proc 0 rank 0 lid 10
      mpi proc 1 rank 1 lid 16
      mpi proc 2 rank 2 lid 22

 Do anyone know anything about this ?
 Thanks in advance.


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