Running and Verification

Procedure

1. Use PuTTY to log in to the server as the root user.
2. Run the following commands to decompress the compute instance files:

   cd /path/to/CASE
   tar xzvf v6-50-specific-inputs-180430.tgz
   tar xzvf CAMx6-x-test_run-inputs_met-140402.tgz
   tar xzvf CAMx6-30-test_run-inputs_other-160408.tgz

3. Run the following commands to copy the test script:

   cd runfiles
   cp CAMx_v6.50.midwest.36.12.20020506-07.MPICH2.job openmpi4.job

4. Run the following command to modify the test script:
   1. Open the test script.

      vi openmpi4.job

   2. Press i to enter the insert mode and modify the test script. Pay attention to the information in bold.

      set EXEC      = "/path/to/CAMX/CAMX_v6-50/CAMx.v6.50.openMPI.gfortranomp"
      cat << ieof > nodes
      192.168.47.111
      set NUMPROCS = 96
      #mpdboot -n $RING -f nodes --verbose
      if( ! { mpirun --allow-run-as-root --mca btl_openib_allow_ib 1 -machinefile nodes -np $NUMPROCS $EXEC } ) then
      #mpdallexit
      exit
      endif

   3. Press Esc, type :wq!, and press Enter to save the file and exit.
5. Run the compute instances.

   ./openmpi4.job

   Check the value of days/ns in the last Info:Benchmark time in the log. The unit is days/ns. A smaller value indicates better performance. You can also convert the value to the value of ns/days. A higher value indicates better performance.

   Figure 1 shows the command output.

   Figure 1 Result example