RE: process communication

"Evan Turner" <[email protected]>
Newsgroups gmane.linux.cluster.openmosix.general
Message-ID <[email protected]>
Try using MPI. MPI is a collection of pragmas that build into a C, C++, Fortran90 program.  Download Lam or MPICH MPI systems and build that into your cluster.

Otherwise you will have to use fork() to spawn a new process and then sockets to communicate.  But that defeats the purpose of openMosix because you could do that with a batch-style cluster.

-evan T.

/technically can run MPI on a batch-style cluster too, but openMosix will migrate your MPI processes more efficiently. 

-----Original Message-----
From: openmosix-general-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org [mailto:openmosix-general-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org] On Behalf Of Adrian
Sent: Monday, October 31, 2005 5:24 AM
To: openmosix-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: [openMosix-general] process communication

Hello,

I want to write a c++-application for openMosix with some kind of process
communication. First I tried it with shared-memory, now with message queues.
With both methods openMosix did not migrate the processes. I've seen that
there's a kernel patch to enable shared memory, I will try it. But I just
wonder, whether there's a simple way to establish process communication
which works under openMosix

BTW, I could nowhere find a list of c/c++ system-calls that prevent
openMosix from migrating the process. Does anyone have one or know where to
find one?

Thanks for your help!
Adrian




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