[mvapich-discuss] Launching other applications from an MPI process

[Jonathan Perkins]

On Thu, Aug 28, 2014 at 12:21:09PM -0700, Sashi Balasingam wrote:
> I am using MVAPICH 2-1.8 on a cluster with 8 nodes, using one mpi
> process per node. Is it possible to launch one or more
> non-mpi, standalone  applications, from each of the MPI process, in
> runtime ? 
> 
> If possible, two more questions - 
>    (a) Can I use shared-memory or named-pipes to comm with those applications ?
>    (b) If any of those (non-mpi) process crashes, will it also crash the parent mpi process ?

Hello Sashi,

Yes, its possible.  You can use shared memory and/or pipes.  A crashing
child process does not have to cause the parent to crash but this of
course depends on how you write the parent.

-- 
Jonathan Perkins