[OMPI users] a question about mpirun

[zhuangchao]

hello all :

       I  installed  the openmpi-1.4.3  on redhat as the following step :

       1.  ./configure  --prefix=/data1/cluster/openmpi 

       2.  make

       3.  make  install

       And  I   compiled  the  examples  of  openmpi-1.4.3  as the following 
step :

       1. make

        Then  I   run   the example :  

            ./mpirun  -np 1  /tmp/openmpi-1.4.3/examples/ring_c 

        I  get  the following  error :

-----------------------------------------------------------------------------
It seems that there is no lamd running on the host node1.
This indicates that the LAM/MPI runtime environment is not operating.
The LAM/MPI runtime environment is necessary for MPI programs to run
(the MPI program tired to invoke the "MPI_Init" function).

Please run the "lamboot" command the start the LAM/MPI runtime
environment.  See the LAM/MPI documentation for how to invoke
"lamboot" across multiple machines.
-----------------------------------------------------------------------------

       I   run openmpi , but  I  get  the error from lam-mpi .  why ?      Can  
you  help me ? 

       Thank you !