[mvapich-discuss] different mpiexec options

[nilesh awate]

Hi all,

I'm using mvapich2-1.0.1 with OFED1.2 udapl stack
i've setup 4 nodes & using them.
but when i run foll commmand
mpiexec -n 4 ./mpitst
mpitst get executed all 4 nodes . . .
can i restrict its execution to only 2 nodes( without reducing node number in mpd.hosts))
by spacifying option while running mpiexec ?
which different option we can give to mpiexec ?
suupose i want to run 4 instance of executable on single node having quadra core cpu
how can i tell it to mpiexec to run it on single node ,let the other node remain idle.

waiting for reply
regards,
 Nilesh Awate
C-DAC R&D






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