I need to find a way of controlling the rsa key used when open-mpi
uses ssh to access hosts. By default, ssh uses the
However, I need to set the key used without messing around with
users' .ssh directories. It appears that in a default installation
of open-mpi, ~/.ssh is specfied is mca_base_param_file_path. Can I
change the ssh directory used by setting this mca param? Or is there
some other way of specifying the id_rsa file (other than changing
ssh config files).
More generally, is there anything posted that states in detail what
I've found a reference to it in the FAQ: "The MCA
parameter (mca_base_param_file_path) specifies the path to search
AMCA files with relative paths. By default this is
$SYSCONFDIR/amca-param-sets/:$CWD." From this
description, it doesn't like setting mca_base_param_file_path will
solve my problem.