I tested this example with hostname before and it worked well:
the hostfile contains only 2 lines
pc86
pc92
and the user wolf doesn't need a password when linking to the other
pc.the user wolf have the same uid and gui on both pc.
i have also another question: is it possible to use mpi to compile some
programms without changing the source code of the program?
Andrew Friedley wrote:
Hello,
Can you give us more details on the problem? The exact error message,
as well as the contents of your hostfile will help. You should check
out our FAQ as well, as it likely will help you solve your problem:
http://www.open-mpi.org/faq/
Particularly the sections 'Running MPI jobs' and 'Running jobs under
rsh/ssh'.
Make is not a very good program to test with - try something simpler
instead:
mpirun -np 2 --hostfile /mnt/wolf/lamhosts hostname
The hostname of both nodes should be printed.
Another note - are you just trying to run a parallel make? If so,
distcc and ccache are a better solution.
Andrew
Andreas Fladischer wrote:
hi@all!
i have a question to the parallel mpirun!i have a small cluster (for
testing purpose one headnode and one node) which running fedora core 3!
i installed openmpi on both nodes and created a user with the same uid
on both nodes; now i try to build the glibc tools from the headnode but
there couldn't be a connection to the second node;
time mpirun -np 2 --hostfile /mnt/wolf/lamhosts make
i'm a newbee on the mpi tools and so i have no plan what i do wrong; in
additional i couldn't find a good documentation exluding the faq's on
the homepage; are there some howto's available?
thanks in advance?
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