I'm working on setting up mpiJava for a cluster user. I'm compiling it
against Sun's Java 1.5.0 and MPICH 1.2.5, on a cluster running CentOS 4
I can get it compiled and installed with a problem, and it almost works.
The test java programs run, however MPICH seems to only initialize with
a world size of 1. This is behavior very similar to if you run an
mpich program without mpirun. However, I am using mpirun.
I've also noticed that when a normal MPI program runs, the process tree
shows mpirun, which has a child of your program. That child of mpirun
then has a child that's your program running locally, and a bunch of
children that are all the 'rsh' command for launching remote copies.
Whenever I run a mpiJava program, the only thing in the process tree is
mpirun and a single child of mpirun.
Has anyone run across this, or have any ideas of what I could do to fix
this problem?
Thanks,
Sean
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