Hi Vipin ,
Thanks alot for the reply.
I went through the FAQ and it also answered some of my questions.
But my problem is, since I am using TCP/Ethernet I guess that MPI uses
SSH/RSH to communicate between peers.
And for that, each peer should have the copy of the application right?
I use 1.2.7rc2 (from Debian/Lenny repo) , and I didn't see the option
"--preload-binary" , is it because the lower version?
Bets regards,
umanga.
vipin kumar wrote:
Hi,
I am not expert, I am user like you but I think I can help you,
Q. After installing OpenMPI on each machine ,do i need to run a
service/daemon on each machine?
Ans. No, not at all, Open MPI takes care of that for you.
Q. How does peers in MPI environment communicate ?
Ans. Using Communicator(name of the group of processes to whom it
belongs, technically handle) and rank of the process in that Communicator.
Q. After implementing parallel program , do I have to install the
application on every machine ?
Ans. Not necessary. Use "--preload-binary" option while launching the
application through mpirun or mpiexec.
Useful links:
1. http://www.open-mpi.org/faq/?category=running#simple-spmd-run
2. http://www.open-mpi.org/faq/
3. man page for mpirun
Regards,
Vipin K.
On Mon, Jun 29, 2009 at 8:21 AM, Ashika Umanga Umagiliya
<auma...@biggjapan.com <mailto:auma...@biggjapan.com>> wrote:
Greeting all,
I am new to Open MPI and I have some newbie questions. I have
given 4 machines at our laboratory to set up Open MPI.Our net work
is simply TCP/Ethernet running Debian Linux.
1) After installing OpenMPI on each machine ,do i need to run a
service/daemon on each machine? (How does peers in MPI environment
communicate ?)
2) After implementing parallel program , do I have to install the
application on every machine ? (I thought the program
automatically propagated to other peers , like in RMI applications? )
Thanks in advance,
Umanga
_______________________________________________
users mailing list
us...@open-mpi.org <mailto:us...@open-mpi.org>
http://www.open-mpi.org/mailman/listinfo.cgi/users
--
Vipin K.
Research Engineer,
C-Dot, Bangalore, India
------------------------------------------------------------------------
_______________________________________________
users mailing list
us...@open-mpi.org
http://www.open-mpi.org/mailman/listinfo.cgi/users
