Hi Amrita I¹m not entirely sure I understand your questions, but will try to answer them below. If you can share what you are doing, we¹d be happy to provide advice.
Ralph On 6/30/06 5:45 AM, "amrita mathuria" <amrita_mathuri...@yahoo.com> wrote: > hi... > > I am working with open mpi source code.... > > I want to know what is the role of daemons in the whole process... Generally, we use the host system's launch capability (rsh, ssh, SLURM, etc.) to launch a daemon on every node that will be used for a job. The daemons are then instructed to launch the application's processes on their local node. > > After mpirun launches the daemons and daemons launches the process on > different nodes..... > Daemons are used to forward I/O between mpirun and the application processes, and also monitor the state of the processes they launched. In this latter case, the daemons specifically alert mpirun to abnormal terminations. Other than that, the daemons don't really do anything after launch. > > > And also do the mpirun interacts with the daemons after launching them....or > it directly interact with the processes when there is a need....????? > Mpirun always interacts directly with the processes. The only exception is when mpirun needs to order termination of the entire job (e.g., if the user issues a ctrl-C) - in this case, the daemon can be ordered to "kill" the local process. > > > > > thanks > > Amrita > > > > > Want to be your own boss? Learn how on Yahoo! Small Business. > <http://us.rd.yahoo.com/evt=41244/*http://smallbusiness.yahoo.com/r-index> > > _______________________________________________ > devel mailing list > de...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/devel