Hello,

 

I am a new OpenMPI user. We are planing to move from IBM AIX POE to OpenMPI.

I had noproblem to install, configure, and compile my application, using OpenMPI 1.1.2.

(thank you, for making it so easy).

 

"ompi_inf -all" runs fine (see attached ompi_info.txt file), my application runs with no problem,

except it only create rank 0. for example if I

 

       >> mpirun  -np 4  my-prog arg1  arg2

 

I expect mpirun start 4 processes on local host with ranks 0,1,2, and 3.

I see 4 processes started with rank 0 (see  attahed mpirun_log.txt file).

 

The behavior is the same, regardless of using local host, or using -host file or -app file.

In all cases correct number of the processes starts on local or remote nodes as specified, with rank 0 for all process.

 

Note: I have no problem running this application on IBM AIX using POE.

 

I know this must be new user's problem.

 

Any comments

 

Thanks

 

Nader,