Re: [OMPI users] Using dynamic process management without mpirun/mpiexec

2010-02-24 Thread Damien Hocking
Yes, that's right. It will launch a singleton, and then add slaves as required. Thank you. Damien On 24/02/2010 6:17 PM, Ralph Castain wrote: Let me see if I understand your question. You want to launch an initial MPI code using mpirun or as a singleton. This code will then determine

Re: [OMPI users] Using dynamic process management without mpirun/mpiexec

2010-02-24 Thread Ralph Castain
Let me see if I understand your question. You want to launch an initial MPI code using mpirun or as a singleton. This code will then determine available resources and use MPI_Comm_spawn to launch the "real" MPI job. Correct? If so, then yes - you can do that. When you do the comm_spawn, you

[OMPI users] Using dynamic process management without mpirun/mpiexec

2010-02-24 Thread Damien Hocking
Hi all, Does OpenMPI support dynamic process management without launching through mpirun or mpiexec? I need to use some MPI code in a shared-memory environment where I don't know the resources in advance. Damien