Can it used in multi node?

[LJjia]

I want to use gdb to debug in 2 machine.

I find in tmpi

${mpirun_cmd} -n ${processes} ${mpi_arg} ${self} runmpi ${has_reptyr} ${has_reptyr/0/${processes}} ${has_reptyr/0/${setpty_cmd}} "${@}"

I add some param like -hostfile myhost in this command to launch tmpi in multi-node

but it doesn't work normal, I want to know can it work in multi-node?