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<html>
<head>
<title>MOSS | Scheduling Simlulator | Installation |
Unix
</title>
</head>
<body bgcolor="#ffffff">
<h1>MOSS Scheduling Simulator
<br>Installation on Unix/Linux/Solaris/HP-UX Systems</h1>
<h2>Purpose</h2>
<p>
This document provides instructions for the installation
of the MOSS Scheduling Simulator on
Unix
operating systems. This procedure should be the same or similar on
Unix, Linux, Solaris, HP-UX and other Unix-compatible
systems.
The MOSS software
is designed for use with
<a href="http://www.cs.vu.nl/~ast/">Andrew S. Tanenbaum</a>,
<a href="http://vig.prenhall.com/catalog/academic/product/1,4096,0130313580,00.html">Modern Operating Systems, 2nd Edition</a>
(<a href="http://www.prenhall.com/">Prentice Hall</a>, 2001).
The Scheduling Simulator was written by
<a href="http://www.cs.earlham.edu/~odo/">Alex Reeder</a>
(<a href="mailto:[email protected]"><i>[email protected]</i></a>).
This installation guide was written by
<a href="http://www.ontko.com/~rayo/">Ray Ontko</a>
(<a href="mailto:[email protected]"><i>[email protected]</i></a>).
<p>
This installation guide only provides information about installing
the software and testing the configuration for
Unix-like operating systems. To install on Windows
operating systems, please read the
<a href="install_windows.html">Installation Guide for
Win95/98/Me/NT/2000 Systems</a>.
For more detailed information about the simulator, please read the
<a href="user_guide.html">User Guide</a>.
</p>
<h2>Requirements</h2>
The following software components are required
to install and use the MOSS Scheduling
Simulator.
<ul>
<li>X-windows environment for running Java Application Window Toolkit (AWT) programs
<li>Java Development Kit (JDK) 1.0 or greater
<li>Text program editor (e.g., notepad)
</ul>
<h2>Pre-Installation</h2>
<p>
Before installation, you should verify:
</p>
<ul>
<li>that you have a working java runtime environment,
<li>that you have a working java development environment, and
<li>that the working directory is in the classpath for the runtime environment.
</ul>
<p>
If you're using a standard command-line java compiler, the following
instructions will help determine if your environment is configured
correctly.
</p>
<ol>
<li>Verify that you have java installed and configured in your environment.
<blockquote><pre>
$ java -version
</pre></blockquote>
You should see a message like this with possibly a different version number.
<blockquote><pre>
java version "1.1.8"
</pre></blockquote>
If you get a message like:
<blockquote><pre>
java: Command not found.
</pre></blockquote>
Then java may not be installed on your system, or may not be configured
for your use.
<p>
If you think that Java may already be installed on your system
but may not be in your "path", you can find it by
<blockquote><pre>
$ find /usr -name java -print
</pre></blockquote>
On my system, for example, the following is returned.
<blockquote><pre>
/usr/lib/netscape/477/communicator/java
/usr/lib/netscape/477/netscape/java
/usr/lib/jdk1.1/bin/java
/usr/lib/jdk1.1/bin/ia32/green_threads/java
/usr/share/java
/usr/bin/java
/usr/src/kernel-source-2.2.17/include/config/binfmt/java
</pre></blockquote>
On my system, I also searched for "javac" and found
that it exists in /usr/bin/java. I'll use this jdk for my
installation.
<p>
If Java isn't available on your system, you should check with
your instructor or system administrator. If you administer your
own system, then you should be able to find a copy of Java
for your operating system.
<p>
If you find that java is installed but not configured for
your use, then perhaps you need to add it to your path. Consult
your instructor or system administrator if you need help adding this
to your path.
</p>
<p><!-- --></p>
<li>Verify that the java compiler is installed and configured in
your environment.
<blockquote><pre>
$ javac
</pre></blockquote>
If you're using a standard java command-line compiler, you should
see a message similar to this.
<blockquote><pre>
use: javac [-g][-O][-debug][-depend][-nowarn][-verbose][-classpath path][-nowrite][-deprecation][-d dir][-J<runtime flag>] file.java...
</pre></blockquote>
If you get a message like:
<blockquote><pre>
javac: Command not found.
</pre></blockquote>
then the java compiler may not be installed on your system, or
may not be configured for your use. Consult your instructor
or system administrator.
<p><!-- --></p>
<li>Verify that that the current directory is in your classpath.
<blockquote><pre>
$ echo $CLASSPATH
</pre></blockquote>
You should see a list of directories separated by colons (":")
or possibly just a blank line. If you don't see the directory
"." (a single period, which stands for the current directory), then
you should add it to the claspath.
<p>
Determine which shell you're using:
</p>
<blockquote><pre>
$ echo $SHELL
</pre></blockquote>
<p>
If you're using sh, ksh, or bash:
</p>
<blockquote><pre>
$ CLASSPATH=.:$CLASSPATH
$ export CLASSPATH
</pre></blockquote>
<p>
If you're using csh, or tcsh:
</p>
<blockquote><pre>
% set CLASSPATH=.:$CLASSPATH
</pre></blockquote>
<p><!-- --></p>
</ol>
<p>
If you have a working java runtime environment, a working java
compiler, and the current directory is in your path, then you're
ready to proceed with the installation.
</p>
<h2>Installation</h2>
Installation of the software can be accomplished with
these simple steps:
<ol>
<li>
Create a directory in which you wish to install the
simulator (e.g., "moss/sched").
<blockquote><pre>
$ cd
$ mkdir moss
$ cd moss
$ mkdir sched
$ cd sched
</pre></blockquote>
<p><!-- --></p>
<li>
Download the compressed tar archive (sched.tgz) into
the directory.
The latest release for this file can always be found at
<a href="http://www.ontko.com/moss/sched/sched.tgz">http://www.ontko.com/moss/sched/sched.tgz</a>.
<p><!-- --></p>
<li>
Expand the compressed tar archive.
<blockquote><pre>
$ tar -xzf sched.tgz
</pre></blockquote>
or
<blockquote><pre>
$ gunzip sched.tgz
$ tar xf sched.tar
</pre></blockquote>
<p><!-- --></p>
</ol>
<h2>Files</h2>
<p>
The directory should now contain the following files:
</p>
<table border="1" cellspacing="0">
<tr>
<th>Files
<th>Description
<tr>
<td>
sched.tgz
<td>Compressed tar
archive which contains all the other files.
<tr>
<td>Common.java
<br>Process.java
<br>Results.java
<br>Scheduling.java
<br>SchedulingAlgorithm.java
<br>sProcess.java
<td valign="top">
Java source files (*.java)
<tr>
<td>Common.class
<br>Process.class
<br>Results.class
<br>Scheduling.class
<br>SchedulingAlgorithm.class
<br>sProcess.class
<td valign="top">
Compiled Java class files (*.class)
<tr>
<td>scheduling.conf
<td>Sample configuration file
<tr>
<td>install_unix.html
<br>install_windows.html
<br>user_guide.html
<td valign="top">
Documentation
<tr>
<td>COPYING.TXT</td>
<td>Gnu General Public License: Terms and Conditions
for Copying, Distribution, and Modification
</table>
<h2>Compilation</h2>
<p>
The distribution includes compiled class files as
well as the source java files. You should not need
to recompile unless you decide to change the code.
If you wish to compile the code,
the following commands should work if you're using
a Java compiler that accepts the normal "javac" command
line.
<p>
To determine which shell you're using:
</p>
<blockquote><pre>
$ echo $SHELL
</pre></blockquote>
<p>
If you're using sh, ksh, bash:
</p>
<blockquote><pre>
$ CLASSPATH=.
$ export CLASSPATH
$ javac -nowarn *.java
</pre></blockquote>
<p>
If you're using csh, tcsh:
</p>
<blockquote><pre>
% set CLASSPATH=.
% javac -nowarn *.java
</pre></blockquote>
The <tt>-nowarn</tt> flag supresses warning messges, of which
there may be several. For backward compatability we use only
those features of Java which have been present from the beginning,
some of which are deprecated and are usually reported by the
compiler with warning messages.
<h2>Test</h2>
<p>
To test the program, enter the following commands.
<blockquote><pre>
$ java Scheduling scheduling.conf
</pre></blockquote>
<p>
The program will simply run the simulation based on the
information provided in <tt>scheduling.conf</tt> and write its
output to the <tt>Summary-Results</tt> and
<tt>Summary-Processes</tt> files. You should see the following
output.
<blockquote><pre>
Working...
Completed.
</pre></blockquote>
<p>
The simulation configuration information is read from a file called
"scheduling.conf".
The "scheduling.conf" file looks something like this:
<blockquote><pre>
// # of Process
numprocess 3
// mean deivation
meandev 1100
// standard deviation
standdev 510
// process # I/O blocking
process 100
process 500
process 30
// duration of the simulation in milliseconds
runtime 5000
</pre></blockquote>
<p>
If things are working correctly, the "Summary-Results" file should look
something like this:
<blockquote><pre>
Scheduling Type: Batch (Nonpreemptive)
Scheduling Name: First-Come First-Served
Simulation Run Time: 2750
Mean: 1100
Standard Deviation: 510
Process # CPU Time IO Blocking CPU Completed CPU Blocked
0 1372 (ms) 100 (ms) 1372 (ms) 13 times
1 689 (ms) 500 (ms) 689 (ms) 1 times
2 689 (ms) 30 (ms) 689 (ms) 22 times
</pre></blockquote>
and the "Summary-Processes" file should look something like
this:
<blockquote><pre>
Process: 0 registered... (1372 100 0 0)
Process: 0 I/O blocked... (1372 100 100 100)
Process: 1 registered... (689 500 0 0)
Process: 1 I/O blocked... (689 500 500 500)
Process: 0 registered... (1372 100 100 100)
Process: 0 I/O blocked... (1372 100 200 200)
Process: 1 registered... (689 500 500 500)
Process: 1 completed... (689 500 689 689)
Process: 0 registered... (1372 100 200 200)
Process: 0 I/O blocked... (1372 100 300 300)
Process: 2 registered... (689 30 0 0)
Process: 2 I/O blocked... (689 30 30 30)
Process: 0 registered... (1372 100 300 300)
Process: 0 I/O blocked... (1372 100 400 400)
Process: 2 registered... (689 30 30 30)
Process: 2 I/O blocked... (689 30 60 60)
Process: 0 registered... (1372 100 400 400)
Process: 0 I/O blocked... (1372 100 500 500)
Process: 2 registered... (689 30 60 60)
Process: 2 I/O blocked... (689 30 90 90)
Process: 0 registered... (1372 100 500 500)
Process: 0 I/O blocked... (1372 100 600 600)
Process: 2 registered... (689 30 90 90)
Process: 2 I/O blocked... (689 30 120 120)
Process: 0 registered... (1372 100 600 600)
Process: 0 I/O blocked... (1372 100 700 700)
Process: 2 registered... (689 30 120 120)
Process: 2 I/O blocked... (689 30 150 150)
Process: 0 registered... (1372 100 700 700)
Process: 0 I/O blocked... (1372 100 800 800)
Process: 2 registered... (689 30 150 150)
Process: 2 I/O blocked... (689 30 180 180)
Process: 0 registered... (1372 100 800 800)
Process: 0 I/O blocked... (1372 100 900 900)
Process: 2 registered... (689 30 180 180)
Process: 2 I/O blocked... (689 30 210 210)
Process: 0 registered... (1372 100 900 900)
Process: 0 I/O blocked... (1372 100 1000 1000)
Process: 2 registered... (689 30 210 210)
Process: 2 I/O blocked... (689 30 240 240)
Process: 0 registered... (1372 100 1000 1000)
Process: 0 I/O blocked... (1372 100 1100 1100)
Process: 2 registered... (689 30 240 240)
Process: 2 I/O blocked... (689 30 270 270)
Process: 0 registered... (1372 100 1100 1100)
Process: 0 I/O blocked... (1372 100 1200 1200)
Process: 2 registered... (689 30 270 270)
Process: 2 I/O blocked... (689 30 300 300)
Process: 0 registered... (1372 100 1200 1200)
Process: 0 I/O blocked... (1372 100 1300 1300)
Process: 2 registered... (689 30 300 300)
Process: 2 I/O blocked... (689 30 330 330)
Process: 0 registered... (1372 100 1300 1300)
Process: 0 completed... (1372 100 1372 1372)
Process: 2 registered... (689 30 330 330)
Process: 2 I/O blocked... (689 30 360 360)
Process: 2 registered... (689 30 360 360)
Process: 2 I/O blocked... (689 30 390 390)
Process: 2 registered... (689 30 390 390)
Process: 2 I/O blocked... (689 30 420 420)
Process: 2 registered... (689 30 420 420)
Process: 2 I/O blocked... (689 30 450 450)
Process: 2 registered... (689 30 450 450)
Process: 2 I/O blocked... (689 30 480 480)
Process: 2 registered... (689 30 480 480)
Process: 2 I/O blocked... (689 30 510 510)
Process: 2 registered... (689 30 510 510)
Process: 2 I/O blocked... (689 30 540 540)
Process: 2 registered... (689 30 540 540)
Process: 2 I/O blocked... (689 30 570 570)
Process: 2 registered... (689 30 570 570)
Process: 2 I/O blocked... (689 30 600 600)
Process: 2 registered... (689 30 600 600)
Process: 2 I/O blocked... (689 30 630 630)
Process: 2 registered... (689 30 630 630)
Process: 2 I/O blocked... (689 30 660 660)
Process: 2 registered... (689 30 660 660)
Process: 2 completed... (689 30 689 689)
</pre></blockquote>
<p>
The program and its input and output files are described
more fully in the <i>MOSS Scheduling Simulator
<a href="user_guide.html">User Guide</a></i>.
<p>
© Copyright 2001, Prentice-Hall, Inc.
This program is free software; it is distributed under the
terms of the Gnu General Public License.
See <a href="COPYING.TXT">COPYING.TXT</a>,
included with this distribution.
<p>
Please send suggestions, corrections, and comments to
Ray Ontko (<A href="mailto:[email protected]"><i>[email protected]</i></a>).
<p>
<i>Last updated: July 7, 2001</i>
</body>
</html>