[Beowulf] lamexec vs mpirun

christian suhendra christiansuhendra at gmail.com
Thu Dec 3 01:16:00 EST 2009


hello guys i've buliding a cluster system with mpich-1.2.7p1,when i test my
machine it work..but when i run the mpirun it doesn't work ini cluster...but
its running
and i got this error
It seems that [at least] one of the processes that was started with
mpirun did not invoke MPI_INIT before quitting (it is possible that
more than one process did not invoke MPI_INIT -- mpirun was only
notified of the first one, which was on node n0).

mpirun can *only* be used with MPI programs (i.e., programs that
invoke MPI_INIT and MPI_FINALIZE). You can use the "lamexec" program
to run non-MPI programs over the lambooted nodes.

and then i try to run lamexec it work..
 i wanna ask you guys the different between of lamexec and mpirun
thank you for your advice



regards
christian
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