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83 lines
3.2 KiB
HTML
83 lines
3.2 KiB
HTML
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<HTML><HEAD>
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<TITLE> Installing the LDPC Software </TITLE>
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</HEAD><BODY>
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<H1> Installing the LDPC Software </H1>
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The LDPC software is written in C, and may well work with any C
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compiler, though it has been tested only with gcc, in Unix and Linux
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environments, and in the <A HREF="http://www.cygwin.com">Cygwin</A>
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Unix-like environment that runs under Microsoft Windows. The
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installation instructions below assume that you are using a Unix-like
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system.
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<P>All the software, including the documentation you are viewing here,
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is contained in a tar file, which you can download by clicking one
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of the options below:
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<BLOCKQUOTE>
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<A HREF="http://www.cs.utoronto.ca/~radford/ftp/LDPC-yyyy-mm-dd/LDPC-yyyy-mm-dd.tar">Tar
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file of LDPC software</A> (0.9 Megabytes)<BR>
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<A HREF="http://www.cs.utoronto.ca/~radford/ftp/LDPC-yyyy-mm-dd/LDPC-yyyy-mm-dd.tar.gz">Gzipped
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tar file of LDPC software</A> (0.4 Megabytes)
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</BLOCKQUOTE>
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<P>Once you obtain the tar file (and uncompress it with gunzip if
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necessary), you should extract the files with the following Unix command:
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<BLOCKQUOTE><PRE>
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tar xf LDPC-yyyy-mm-dd.tar
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</PRE></BLOCKQUOTE>
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This will create a source directory called <TT>LDPC-yyyy-mm-dd</TT>, and place
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all the source, documentation, and other files in this directory.
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<P>If you prefer for this directory to be called something else,
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rename it <B>now</B>, before compiling the programs, since the file
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<TT>randfile</TT> in this directory, containing natural random numbers,
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is accessed according to its path when the programs were compiled.
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<P>Once the tar command above has finished, you should change into the
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newly-created directory, and type
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<BLOCKQUOTE><PRE>
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make
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</PRE></BLOCKQUOTE>
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If all goes well, this should compile all the programs (except for some
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test programs, which can be compiled with <TT>make test</TT>). You
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may want to edit the file <TT>Makefile</TT> before running <TT>make</TT>
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in order to change compilation options, such as the optimization level.
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<P>You can run the programs from this source directory, or you can copy
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them to some other directory by running the <TT>LDPC-install</TT>
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shell file. For instance, to install them in a bin directory in your
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home directory, do the following:
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<BLOCKQUOTE><PRE>
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./LDPC-install $HOME/bin
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</PRE></BLOCKQUOTE>
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<P>The source directory contains a copy of all the HTML files
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documenting the software, such as the one you are reading now, with
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the file <TT>index.html</TT> being the starting point. It is best to
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use this local copy when referring to the documentation, rather than
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get it off the web, since that is faster and also insures that the
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documentation is for the version that you are using. Just tell your
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browser to open the URL
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<BLOCKQUOTE><PRE>
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file:<I>path-to-software</I>/index.html
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</PRE></BLOCKQUOTE>
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where <TT><I>path-to-software</I></TT> is the full path (starting with "/")
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to the directory where you've put the software.
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<P>The command
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<BLOCKQUOTE><PRE>
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make clean
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</PRE></BLOCKQUOTE>
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will remove all the compiled programs, as well as the files created when
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the <A HREF="examples.html">examples</A> are run, and <TT>core</TT>, if it
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exists.
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<HR>
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<A HREF="index.html">Back to index for LDPC software</A>
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</BODY></HTML>
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