[mvapich-discuss] mpiexec , mpiexec_osu, mpirun_rsh in mvapich2-1.6

[Johnny Devaprasad]

Hi all,

The mpiexec, mpiexec_osu and mpirun_rsh binaries appear to be different, but
I have noticed the following.

Regarding mpiexec_osu:
-----------------------------------

mpiexec_osu --help
usage: mpirun_rsh [-v] [-sg group] [-rsh|-ssh] [-gdb] -[tv] [-xterm] [-show]
[-legacy] -n N[-machinefile hfile] a.out args | -config configfile
[-hostfile hfile]
Where:
sg         =>  execute the processes as different group ID
rsh        =>  to use rsh for connecting
ssh        =>  to use ssh for connecting
gdb        =>  run each process under the control of gdb
tv         =>  run each process under the control of TotalView
xterm      =>  run remote processes under xterm
show       =>  show command for remote execution but don't run it
legacy     =>  use old startup method (1 ssh/process)
np         =>  specify the number of processes
hfile      =>  name of file containing hosts, one per line
a.out      =>  name of MPI binary
args       =>  arguments for MPI binary
config     =>  name of file containing the exe information: each line has
the form -n numProc : exe args

Is there a help that I can refer to for mpiexec_osu. Is it different from
mpiexec?

Regarding mpiexec:
----------------------------
mpiexec --help
invalid mpiexec argument --help
Usage: mpiexec -usize <universesize> -maxtime <seconds> -exitinfo -l\
               -n <numprocs> -soft <softness> -host <hostname> \
               -wdir <working directory> -path <search path> \
               -file <filename> -configfile <filename> \
               -genvnone -genvlist <name1,name2,...> -genv name value\
               -envnone -envlist <name1,name2,...> -env name value\
               execname <args>\
               [ : -n <numprocs> ... execname <args>]

Is there no -hostfile option to mpiexec ?

Regards,
Johnny
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