Dear Andy,
you wrote that with openmpi:
avierstr@muscorum:~> mpiexec --hostfile hostfile -np 1 migrate-n
it does not work, but with lam-mpi
avierstr@muscorum:~/thomas> mpiexec -np 2 migrate-n
you started openmpi on only _one_ node, migrate needs at least _two_
nodes to run
(as you did in lam-mpi)
migrate actually aborts when running on only one node, it should show
an error message so, like this
zork>which mpirun
/usr/local/openmpi/bin/mpirun
zork>mpirun -machinefile ~/onehost -np 1 migrate-n
migrate-n
=============================================
MIGRATION RATE AND POPULATION SIZE ESTIMATION
using Markov Chain Monte Carlo simulation
=============================================
compiled for a PARALLEL COMPUTER ARCHITECTURE
Version debug 2.1.3 [x]
Program started at Mon Feb 13 09:03:45 2006
Reading N ...
Reading S ...
In file main.c on line 697
This program was compiled to use a parallel computer
and you tried to run it on only a single node.
This will not work because it uses a
"single_master-many_worker" architecture
and needs at least TWO nodes
Peter
