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st_to_dsp.html
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<html>
<head>
<title>
ST_TO_DSP - Convert Sparse Matrix File from ST to DSP Format
</title>
</head>
<body bgcolor="#EEEEEE" link="#CC0000" alink="#FF3300" vlink="#000055">
<h1 align = "center">
ST_TO_DSP <br> Convert Sparse Matrix File from ST to DSP Format
</h1>
<hr>
<p>
<b>ST_TO_DSP</b>
is a FORTRAN90 program which
converts a sparse matrix file from
the ST (zero-based index) to DSP (one-based-index) format.
</p>
<h3 align = "center">
Usage:
</h3>
<p>
<dl>
<dt>
<b>st_to_dsp</b> <i>file.st</i>
</dt>
<dd>
reads the user's data file <i>file.st</i>, reads the data,
and writes the converted data to <i>file.dsp</i>.
</dd>
</dl>
</p>
<h3 align = "center">
Licensing:
</h3>
<p>
The computer code and data files described and made available on this web page
are distributed under
<a href = "../../txt/gnu_lgpl.txt">the GNU LGPL license.</a>
</p>
<h3 align = "center">
Related Data and Programs:
</h3>
<p>
<a href = "../../data/dsp/dsp.html">
DSP</a>,
a file format which
is used for the output of this program.
</p>
<p>
<a href = "../../f_src/dsp_to_st/dsp_to_st.html">
DSP_TO_ST</a>,
a FORTRAN90 program which
converts a DSP sparse matrix file to ST format.
</p>
<p>
<a href = "../../m_src/mm_to_msm/mm_to_msm.html">
MM_TO_MSM</a>,
a MATLAB program which
reads a Matrix Market file defining a sparse matrix, and creates
a corresponding MATLAB sparse matrix data structure.
</p>
<p>
<a href = "../../data/st/st.html">
ST</a>,
a data format which
is used for the input to this program.
</p>
<p>
<a href = "../../f_src/st_io/st_io.html">
ST_IO</a>,
a FORTRAN90 library which
reads and writes sparse linear systems stored in the ST "sparse triplet"
Sparse Matrix format.
</p>
<p>
<a href = "../../f_src/st_to_hb/st_to_hb.html">
ST_TO_HB</a>,
a FORTRAN90 program which
converts a sparse matrix file from ST format to
HB format (Harwell Boeing format);
</p>
<h3 align = "center">
Source Code:
</h3>
<p>
<ul>
<li>
<a href = "st_to_dsp.f90">st_to_dsp.f90</a>, the source code.
</li>
<li>
<a href = "st_to_dsp.sh">st_to_dsp.sh</a>,
commands to compile, link and load the source code.
</li>
</ul>
</p>
<h3 align = "center">
Examples and Tests:
</h3>
<p>
The <b>KERSHAW</b> matrix is a 4 by 4 matrix. Files you may copy include:
<ul>
<li>
<a href = "../../data/st/kershaw.st">kershaw.st</a>,
the Kershaw matrix, stored in an ST format file.
</li>
<li>
<a href = "../../data/dsp/kershaw.dsp">kershaw.dsp</a>,
the Kershaw matrix, stored in a DSP format file created by the
command <blockquote><b>st_to_dsp kershaw.st</b>.
</li>
</ul>
</p>
<h3 align = "center">
List of Routines:
</h3>
<p>
<ul>
<li>
<b>MAIN</b> is the main program for ST_TO_DSP.
</li>
<li>
<b>FILE_NAME_EXT_GET</b> determines the "extension" of a file name.
</li>
<li>
<b>FILE_NAME_EXT_SWAP</b> replaces the current "extension" of a file name.
</li>
<li>
<b>GET_UNIT</b> returns a free FORTRAN unit number.
</li>
<li>
<b>S_INDEX_LAST_C</b> finds the LAST occurrence of a given character.
</li>
<li>
<b>TIMESTAMP</b> prints the current YMDHMS date as a time stamp.
</li>
</ul>
</p>
<p>
You can go up one level to <a href = "../f_src.html">
the FORTRAN90 source codes</a>.
</p>
<hr>
<i>
Last revised on 03 August 2006.
</i>
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