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Problem-solving in High Performance Computing by Igor Ljubuncic

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Chapter 4

A deeper look into the system

Abstract

The chapter teaches about the system internals and kernel tunables, and how they may relate to problem solving. The chapter will expose the reader to a number of critical system parameters that can be used to determine and isolate the manifestation of a problem.

Keywords

kernel
tunable
/proc
filesystem
By now, you have seen the /proc string mentioned in the text several times, and if you have worked with Linux to some extent in the past, you are familiar with what it means. Proc is a special filesystem in UNIX-like operating systems (/proc, n.d.) that presents the information about processes in a human-readable hierarchal tree-like structure. Mounted under /proc, this filesystem acts as an interface ...

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