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<title>Intel® Threading Building Blocks. Sudoku sample</title>
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<h1 class="title">Intel® Threading Building Blocks.<br>Sudoku sample</h1>
</div>
<p>
This directory contains a simple example that finds all solutions to a
Sudoku board.
<br><br>
It uses a straightforward state-space search algorithm
that exhibits OR-parallelism. It can be optionally run until it
obtains just the first solution. The point of the example is to teach
how to use the task_group interface.
<br><br>
The example can be built in the offload version to run on Intel® Many Integrated Core (Intel® MIC) Architecture based coprocessor (see <a href="../../index.html">build instructions</a>).
</p>
<div class="changes">
<div class="h3-alike">System Requirements</div>
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<p>
For the most up to date system requirements, see the <a href="http://software.intel.com/en-us/articles/intel-threading-building-blocks-release-notes">release notes.</a>
</p>
</div>
</div>
<div class="changes">
<div class="h3-alike">Files</div>
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<dl>
<dt><a href="sudoku.cpp">sudoku.cpp</a>
<dd>Driver.
<dt><a href="input1">input1</a>
<dd>Sample input file with modest number of solutions.
<dt><a href="input2">input2</a>
<dd>Sample input file with small number of solutions.
<dt><a href="input3">input3</a>
<dd>Sample input file with larger number of solutions.
<dt><a href="input4">input4</a>
<dd>Sample input file with very large number of solutions.
<dt><a href="Makefile">Makefile</a>
<dd>Makefile for building the example.
</dl>
</div>
</div>
<div class="changes">
<div class="h3-alike">Directories</div>
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<div class="show-hide">
<dl>
<dt><a href="msvs/">msvs</a>
<dd>Contains Microsoft* Visual Studio* workspace for building and running the example with the Intel® C++ Compiler (Windows* systems only).
<dt><a href="xcode/">xcode</a>
<dd>Contains Xcode* IDE workspace for building and running the example (OS X* systems only).
</dl>
<p>For information about the minimum supported version of IDE, see <a href="http://software.intel.com/en-us/articles/intel-threading-building-blocks-release-notes">release notes.</a></p>
</div>
</div>
<div class="changes">
<div class="h3-alike">Build instructions</div>
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<p>General build directions can be found <a href="../../index.html">here</a>.</p>
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<div class="changes">
<div class="h3-alike">Usage</div>
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<dl>
<dt><tt>sudoku <i>-h</i></tt>
<dd>Prints the help for command line options
<dt><tt>sudoku [<i>n-of-threads</i>=value] [<i>filename</i>=value] [<i>verbose</i>] [<i>silent</i>] [<i>find-one</i>]</tt>
<dt><tt>sudoku [n-of-threads [filename]] [<i>verbose</i>] [<i>silent</i>] [<i>find-one</i>]</tt>
<dd><i>n-of-threads</i> is the number of threads to use; a range of the form <i>low</i>[:<i>high</i>], where low and optional high are non-negative integers or 'auto' for the TBB default.<br>
<i>filename</i> is an input filename.<br>
<i>verbose</i> - prints the first solution.<br>
<i>silent</i> - no output except elapsed time.<br>
<i>find-one</i> - stops after finding first solution.<br>
<dt>To run a short version of this example, e.g., for use with Intel® Parallel Inspector:
<dd>Build a <i>debug</i> version of the example
(see the <a href="../../index.html">build instructions</a>).
<br>Run it with a small problem size and the desired number of threads, e.g., <tt>sudoku 4 input2</tt>.
</dl>
</div>
</div>
<br>
<a href="../index.html">Up to parent directory</a>
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<p>
Intel and the Intel logo are trademarks of Intel Corporation in the U.S. and/or other countries.
<br>* Other names and brands may be claimed as the property of others.
<br>© 2016, Intel Corporation
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