Chapter 6. Creating a Mountable Drive on the Master Node
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...