High Performance Linux Clusters with OSCAR, Rocks, OpenMosix, and MPI [Electronic resources] نسخه متنی

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High Performance Linux Clusters with OSCAR, Rocks, OpenMosix, and MPI [Electronic resources] - نسخه متنی

Joseph D. Sloan

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Chapter 7. Rocks


The
previous chapter showed the use of OSCAR to coordinate the many
activities that go into setting up and administering a cluster. This
chapter discusses another popular kit for accomplishing roughly the
same tasks.

NPACI Rocks is a collection of open source software for building a
high-performance cluster. The primary design goal for Rocks is to
make cluster installation as easy as possible. Unquestionably, they
have gone a long way toward meeting this goal. To accomplish this,
the default installation makes a number of reasonable assumptions
about what software should be included and how the cluster should be
configured. Nonetheless, with a little more work, it is possible to
customize many aspects of Rocks.

When you install Rocks, you will install both the
clustering software and a current version of Red Hat Linux updated to
include security patches. The Rocks installation will correctly
configure various services, so this is one less thing to worry about.
Installing Rocks installs Red Hat Linux, so you
won't be able to add Rocks to an existing server or
use it with some other Linux distribution.

Default installations tend to go
very quickly and very smoothly. In fact, Rocks'
management strategy assumes that you will deal with software problems
on a node by reinstalling the system on that node rather than trying
to diagnose and fix the problem. Depending on hardware, it may be
possible to reinstall a node in under 10 minutes. Even if your
systems take longer, after you start the reinstall, everything is
automatic, so you don't need to hang around.

In this chapter, we'll look briefly at how to build
and use a Rocks cluster. This coverage should provide you with enough
information to decide whether Rocks is right for you. If you decide
to install Rocks, be sure you download and read the current
documentation. You might also want to visit Steven Baum's site,
http://stommel.tamu.edu/~baum/npacil.


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