mpirun_openib — run a MVAPIch MPI program on a ParaStation MPI cluster.
mpirun_openib   -np nodes  [[-nodes nodelist] |  [-hosts hostlist] |  [-hostfile hostfile]] [-sort { proc  |   load  |   proc+load  |   none }
      ] [-exports=envlist] [
          -v  |   --verbose  
      ] [
          -V  |   --version  
      ] [
          -?  |   --help  
      ] [--usage]  
         command 
         [ args ] 
       
mpirun_openib is a tool that enables programs linked with the MVAPIch MPI library to run on a ParaStation MPI cluster under control of the ParaStation MPI management facility. Within ParaStation MPI the startup of parallel jobs is handled as described within the process_placement(7) manual page. The spawning mechanism is steered by environment variables, which are described in detail within ps_environment(7).
mpirun_openib typically works like this:
mpirun_openib -npnumprog[args]
      This will startup the program prog
      num times in parallel forming a
      parallel job.
      Args are optional argument which will be
      passed to each instance of prog.
    
-np nodes
        Number of processes to create.
-nodes=nodeslist
        list of nodes to use.
-hosts=hosts
        list of hosts to use.
-hostfile=hostfile
        hostfile to use.
-sort=criteria
        
            Sorting criterion to use: proc,
            load,
            proc+load or
            none.
          
-exports=envlist
        Environment to export to foreign nodes.
-v, --verbose 
        Print diagnostic messages.
-V, --version 
        Output version information and exit.
-?, --help 
        Show this help messages.
--usage 
        Display brief usage message.