1 Reply Latest reply on May 24, 2018 1:24 AM by xinwuya

    How to run MPI through the ND mode

    xinwuya

      Hello,

      We can't run MPI through the ND mode, only the Socket mode runs successfully.

       

      Our environment is Win10 1709, Mellanox Connect-X 3, WinOF v5.5. Another  Computer is Mellanox Connect-X 2.The instruction is:

      mpiexec.exe -hosts 2 11.4.12.10 11.4.12.12 -env MPICH_NETMASK 11.4.12.10/255.255.255.0 -env MSMPI_ND_ZCOPY_THRESHOLD -1 -env MSMPI_DISABLE_ND 0 -env MSMPI_DISABLE_SOCK  1 -affinity "$(TargetPath)"

       

      But the result is:

      job aborted:
      [ranks] message

      [0] fatal error
      Fatal error in MPI_Send: Other MPI error, error stack:
      MPI_Send(buf=0x00000297A8661070, count=419430400, MPI_CHAR, dest=1, tag=4, MPI_COMM_WORLD) failed
      unable to connect to 192.168.18.5 11.4.12.12 DESKTOP-U5E19NF  on port 0, the socket interconnect is disabled

      [1] terminated

      ---- error analysis -----

      [0] on 11.4.12.10
      mpi has detected a fatal error and aborted C:\Users\MPITest\Desktop\MSMPI\x64\Debug\MSMPI.exe

      ---- error analysis -----

       

      We can't find the reason, Can you give us any advices?Thanks for your time.