This chapter discusses how to create a mountable drive on the master node. Effective, error-free operation of the Pi supercomputer requires that the slave nodes have the ability to mount the master node export
drive/folder that contains the MPI code, so that each node will have their own identical code for carrying out a given task. In addition, you will be introduced to the powerful -H
command, which can be employed to willfully task any or all threads, nodes, and cores to solve a given problem.
In this chapter, you will learn:
How to use the
mkdir
command to make anexport
drive (used as an MPI code repository) on the master node.How to use the
chown
command to change ownership of theexport
drive from theroot
user to a new user.How to use the
rpcbind
command, which will allow the master Pi to export theexport
drive on the master node to the slave nodes.How to edit the
exports
file that will facilitate exporting theexport
drive...