Tutorial: Running MPI Programs on Hadoop Cluster

--D. Thiebaut (talk) 13:57, 15 October 2013 (EDT)

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Setup password-less ssh

• Follow directions in this page, or follow the steps summarized below.
• login to Linux-Mint machine with 352a-xx account
• enter command:

ssh-keygen -t rsa
ls .ssh
cd .ssh
mv id_rsa id_rsa.mpi
mv id_rsa.pub id_rsa.mpi.pub
ls -l
total 12
-rw------- 1 352a 352a 1675 Oct 15 13:33 id_rsa.mpi
-rw------- 1 352a 352a  396 Oct 15 13:33 id_rsa.mpi.pub
-rw-r--r-- 1 352a 352a  444 Oct 14 14:26 known_hosts
cat id_rsa.mpi.pub > authorized_keys
emacs -nw config     (and add the next line to the file)
IdentityFile ~/.ssh/id_rsa.mpi