[Wrf-users] error using MPI

[Hosein S]

Dear All

when i run WRF using command "mpiexec - np 6 ./wrf.exe " i got this error: 

"
[mpiexec at mechanic-desktop] match_arg (./utils/args/args.c:122): unrecognized argument 
[mpiexec at mechanic-desktop] HYDU_parse_array (./utils/args/args.c:140): argument matching returned error
[mpiexec at mechanic-desktop] parse_args (./ui/mpich/utils.c:1387): error parsing input array
[mpiexec at mechanic-desktop] HYD_uii_mpx_get_parameters (./ui/mpich/utils.c:1438): unable to parse user arguments

Usage: ./mpiexec [global opts] [exec1 local opts] : [exec2 local opts] : ...

Global options (passed to all executables):

  Global environment options:
    -genv {name} {value}             environment variable name and value
    -genvlist {env1,env2,...}       
 environment variable list to pass
    -genvnone                        do not pass any environment variables
    -genvall                         pass all environment variables not managed
                                          by the launcher (default)

  Other global options:
    -f {name}                        file containing the host
 names
    -hosts {host list}               comma separated host list
    -wdir {dirname}                  working directory to use
    -configfile {name}               config file containing MPMD launch options


Local options (passed to individual executables):

  Local environment options:
    -env {name} {value}              environment variable name and value
    -envlist {env1,env2,...}         environment variable list to pass
   
 -envnone                         do not pass any environment variables
    -envall                          pass all environment variables (default)

  Other local options:
    -n/-np {value}                   number of processes
    {exec_name} {args}               executable name and arguments


Hydra specific options (treated as global):

  Launch options:
   
 -launcher                        launcher to use ( ssh rsh fork slurm ll lsf sge manual persist)
    -launcher-exec                   executable to use to launch processes
    -enable-x/-disable-x             enable or disable X forwarding

  Resource management kernel options:
    -rmk                             resource management kernel to use ( user slurm ll lsf sge pbs)

  Hybrid programming options:
   
 -ranks-per-proc                  assign so many ranks to each process

  Processor topology options:
    -binding                         process-to-core binding mode
    -topolib                         processor topology library ( hwloc plpa)

  Checkpoint/Restart options:
    -ckpoint-interval                checkpoint interval
    -ckpoint-prefix                  checkpoint file
 prefix
    -ckpoint-num                     checkpoint number to restart
    -ckpointlib                      checkpointing library ( blcr)

  Demux engine options:
    -demux                           demux engine ( poll select)

  Other Hydra options:
    -verbose                         verbose mode
   
 -info                            build information
    -print-all-exitcodes             print exit codes of all processes
    -iface                           network interface to use
    -ppn                             processes per node
    -profile                         turn on internal
 profiling
    -prepend-rank                    prepend rank to output
    -prepend-pattern                 prepend pattern to output
    -outfile-pattern                 direct stdout to file
    -errfile-pattern                 direct stderr to file
    -nameserver                      name server information (host:port format)
   
 -disable-auto-cleanup            don't cleanup processes on error
    -disable-hostname-propagation    let MPICH2 auto-detect the hostname
    -order-nodes                     order nodes as ascending/descending cores

Please see the intructions provided at
http://wiki.mcs.anl.gov/mpich2/index.php/Using_the_Hydra_Process_Manager
for further details"

Can anybody help me with this?

Thanks in advance
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