Re: [OMPI users] mpirun takes only single processor instead of multiple processors

2009-02-13 Thread Jeff Squyres
Can you send all the information listed here: http://www.open-mpi.org/community/help/ On Feb 12, 2009, at 8:48 PM, Ramya Narasimhan wrote: Hi, I have entered the IP address of the system in the hosts file (twice the IP for two CPU's) .I don't know about this mca parameter.

Re: [OMPI users] mpirun takes only single processor instead of multiple processors

2009-02-12 Thread Ramya Narasimhan
Hi, I have entered the IP address of the system in the hosts file (twice the IP for two CPU's) .I don't know about this mca parameter. Can you please tell me about this or any reference material for this parameter? Actually the input file is to perform minimization of the protein using CH

Re: [OMPI users] mpirun takes only single processor instead of multiple processors

2009-02-12 Thread Ralph Castain
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 e

[OMPI users] mpirun takes only single processor instead of multiple processors

2009-02-12 Thread Ramya Narasimhan
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 t