dear Reuti, >I was assuming that you are using bash, for csh it would be different.
Yes, I use bash shell. >The command: >>$ ssh c2 which orted it displays: which : no orted in (......). Indeed (.........) contains no openmpi. so I run ssh c2 first and then run which orted, it displays: /usr/local/openmpi-1.6.5/bin/orted >must succeed. Does: >>$ ssh c2 echo \$PATH >show the path(s) you added in ~/.bashrc on the other machine? the command doesnt show the path I added in .bashrc regards, meng