Could you pass along what is in your hosts file? Did you set any mca params in the default mca parameter file, or in your environ?

I note that you redirected stdin. Which rank is running and which is stopped? How big is your input file? I am not familiar with your program - are both ranks expecting to get stdin, or only rank=0?

Thanks
Ralph


On Feb 12, 2009, at 9:12 PM, Ramya Narasimhan wrote:

Hi All,
I am a new user of Open MPI. I have installed open mpi-1.3 on a RedHat Linux-5 ver system with F77 set as gfortran compiler. I tested the programs in examples and all ran. When I tried the CHARMM program with mpirun (2 CPU's) the job runs on single processor and it is stopped in the other. Actually I clarified that the error is not with CHARMM. Is there any error in my MPI procedure? I gave the job run as

mpirun -hostfile hosts -np 2 charmm < *.inp
Thanks for any help.
Varsha.
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