from the past few days, i was trying to build a Beowulf cluster out of three machines.
i installed Ubuntu 12.04 server ed. for the master node and Ubuntu 12.04 Desktop ed. for other nodes.
i followed this website step by step: http://byobu.info/wiki/Building_a_si...er_with_Ubuntu
Every thing when smoothly until i encountered problem while setting up mpd. I tried several other blogs to trouble shoot the problem and i figured out that mpich2 doesnt come with mpd deamon rather there is another called Hydra. (i am not sure about this.) i tried to use Hydra (mpiexec ) but it not working
it is giving error such as no routes from host to nodes.
upto this step i followed everything on the blog and it worked fine (like setting up ssh and login to nodes from master node without password)