I have migrated from LAM/MPI to OpenMPI. I am not able to execute simple mpi code in which master sends an integer to slave.
If i execute code on single machine i.e start 2 instance on same machine (mpirun
-np 2 hello) this works fine.
If i execute in cluster using mpirun --prefix /usr
/local -np 2 --host 126.96.36.199,188.8.131.52 hello
it gives following error
"btl_tcp_endpoint.c:572:mca_btl_tcp_endpoint_complete_connect] connect() failed with errno=113"
I am using openmpi-1.2