Could you explain what you mean by "comm accept/connect" ?
On Tue, Mar 25, 2008 at 4:06 PM, George Bosilca <bosilca_at_[hidden]> wrote:
> There is a chapter in the MPI standard about this. Usually, people
> will use comm accept/connect to do such kind of things. No need to
> have your own communication protocol.
> On Mar 25, 2008, at 10:32 AM, slimtimmy_at_[hidden] wrote:
> > I'm new to OpenMPI and would like to know whether there is a common
> > way
> > for a caller of mpirun to communicate with the mpi processes.
> > Basically
> > I have a setup where one process is responsible for distributing jobs
> > to other mpi processes and collecting the respective results
> > afterwards.
> > Now for example I want to enable communication between the master
> > process and a GUI application. The GUI should be notified by the
> > master
> > about progress being made and it should also be possible for the GUI
> > to
> > send commands to the master (so the communication should be possible
> > in
> > both ways)
> > Is stdin/stdout suitable? (is sending binary data a problem with this
> > type of communication?) I also read that the MPI specification does
> > not
> > say anything about the use of stdin/stdout. Is it safe to assume that
> > most common MPI implementations support it?
> > Another way to deal with the problem would be to write some custom
> > network code that is used alongside the MPI communication. What is
> > commonly used in this situation?
> > Best regards
> > Timm
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