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st_to_hb.html
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<title>
ST_TO_HB - Convert Sparse Matrix File from ST to HB Format
</title>
</head>
<body bgcolor="#EEEEEE" link="#CC0000" alink="#FF3300" vlink="#000055">
<h1 align = "center">
ST_TO_HB<br>
Convert Sparse Matrix File from ST to HB Format
</h1>
<hr>
<p>
<b>ST_TO_HB</b>
is a FORTRAN90 program which
reads sparse matrix data from an ST (Sparse Triplet) file and
writes it to an HB (Harwell-Boeing) file.
</p>
<h3 align = "center">
Usage:
</h3>
<p>
<blockquote>
<b>st_to_hb</b> <i>file.st</i> <i>file.hb</i>
</blockquote>
<dl>
<dt>
<i>file.st</i>
</dt>
<dd>
the ST file to be read;
</dd>
<dt>
<i>file.hb</i>
</dt>
<dd>
the HB file to be created.
</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">
Languages:
</h3>
<p>
<b>ST_TO_HB</b> is available in
<a href = "../../f_src/st_to_hb/st_to_hb.html">a FORTRAN90 version</a> and
<a href = "../../m_src/st_to_hb/st_to_hb.html">a MATLAB version</a>.
</p>
<h3 align = "center">
Related Data and Programs:
</h3>
<p>
<a href = "../../data/hb/hb.html">
HB</a>,
a data directory which
contains examples of HB files,
the Harwell Boeing sparse matrix file format;
</p>
<p>
<a href = "../../f_src/hb_io/hb_io.html">
HB_IO</a>,
a FORTRAN90 library which
reads and writes sparse linear systems stored in the Harwell-Boeing Sparse Matrix format.
</p>
<p>
<a href = "../../f_src/hb_to_st/hb_to_st.html">
HB_TO_ST</a>,
a FORTRAN90 program which
converts a sparse matrix from Harwell-Boeing to sparse triplet format.
</p>
<p>
<a href = "../../datasets/hbsmc/hbsmc.html">
HBSMC</a>,
a dataset directory which
contains the Harwell Boeing Sparse Matrix Collection;
</p>
<p>
<a href = "../../m_src/mm_to_hb/mm_to_hb.html">
MM_TO_HB</a>,
a MATLAB program which
reads the sparse matrix information from an MM Matrix Market file
and writes a corresponding HB Harwell Boeing file.
</p>
<p>
<a href = "../../m_src/msm_to_hb/msm_to_hb.html">
MSM_TO_HB</a>,
a MATLAB program which
writes a MATLAB sparse matrix to a <a href = "../../data/hb/hb.html">
Harwell Boeing</a> file;
</p>
<p>
<a href = "../../data/st/st.html">
ST</a>,
the 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) format.
</p>
<p>
<a href = "../../f_src/st_to_dsp/st_to_dsp.html">
ST_TO_DSP</a>,
a FORTRAN90 program which
converts an ST sparse matrix file to DSP format.
</p>
<p>
<a href = "../../m_src/st_to_mm/st_to_mm.html">
ST_TO_MM</a>,
a MATLAB program which
converts a sparse matrix file from
<a href = "../../data/st/st.html">ST format</a> to
<a href = "../../data/mm/mm.html">MM format</a> (Matrix Market format);
</p>
<p>
<a href = "../../m_src/st_to_msm/st_to_msm.html">
ST_TO_MSM</a>,
a MATLAB program which
reads an <a href = "../../data/st/st.html">ST sparse triplet</a> file
and creates a corresponding MATLAB Sparse Matrix.
</p>
<h3 align = "center">
Reference:
</h3>
<p>
<ol>
<li>
Iain Duff, Roger Grimes, John Lewis,<br>
User's Guide for the Harwell-Boeing Sparse Matrix Collection,<br>
October 1992,<br>
Available online at
<a href = "../../pdf/hbsmc.pdf">
../../pdf/hbsmc.pdf</a>.
</li>
</ol>
</p>
<h3 align = "center">
Source Code:
</h3>
<p>
<ul>
<li>
<a href = "st_to_hb.f90">st_to_hb.f90</a>, the source code.
</li>
<li>
<a href = "st_to_hb.sh">st_to_hb.sh</a>,
commands to compile the source code.
</li>
</ul>
</p>
<h3 align = "center">
Examples and Tests:
</h3>
<p>
<ul>
<li>
<a href = "st_to_hb_prb.f90">st_to_hb_prb.f90</a>,
a sample calling program.
</li>
<li>
<a href = "st_to_hb_prb.csh">st_to_hb_prb.csh</a>,
commands to compile and run the sample program.
</li>
<li>
<a href = "st_to_hb_prb_output.txt">st_to_hb_prb_output.txt</a>,
the output file.
</li>
</ul>
</p>
<h3 align = "center">
List of Routines:
</h3>
<p>
<ul>
<li>
<b>MAIN</b> is the main program for ST_TO_HB.
</li>
<li>
<b>GET_UNIT</b> returns a free FORTRAN unit number.
</li>
<li>
<b>SORT_HEAP_EXTERNAL</b> externally sorts a list of items into ascending order.
</li>
<li>
<b>ST_DATA_READ</b> reads the data of an ST file.
</li>
<li>
<b>ST_HEADER_READ</b> reads the header of an ST file.
</li>
<li>
<b>ST_REBASE</b> changes the base of an index array.
</li>
<li>
<b>ST_SORT_A</b> sorts the entries of an ST matrix by column.
</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 29 November 2008.
</i>
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