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<title>Intel® Threading Building Blocks. fgbzip2 sample</title>
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<h1 class="title">Intel® Threading Building Blocks.<br>fgbzip2 sample</h1>
</div>
<p>
fgbzip2 is a parallel implementation of bzip2 block-sorting file compressor that uses tbb::flow.
The output of this application is fully compatible with bzip2 v1.0.6 or newer.
<br><br>
<i>
This example includes software developed by Julian R Seward. See
<a href="#copyright">here</a> for copyright information.
</i>
<br>
It exemplifies support for asynchronous capabilities in the flow graph API, in particular async_node and async_msg.
<br><br>
This example uses C++11 lambda expressions. Specifying a compiler option such as -std=c++11 or similar might be necessary in order to build the example.
For more information please refer to the documentation for the compiler you use.
</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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<div class="show-hide">
<dl>
<dt><a href="fgbzip2.cpp">fgbzip2.cpp</a>
<dd>Flow Graph implementation of bzip2 compressor.
<dt><a href="blocksort.cpp">blocksort.cpp</a>
<dd>Block sorting machinery of libbzip2.
<dt><a href="bzlib.cpp">bzlib.cpp</a>
<dd>libbzip2 top-level functions.
<dt><a href="bzlib.h">bzlib.h</a>
<dd>Public header file for the libbzip2.
<dt><a href="bzlib_private.h">bzlib_private.h</a>
<dd>Private header file for the libbzip2.
<dt><a href="compress.cpp">compress.cpp</a>
<dd>Compression machinery of libbzip2.
<dt><a href="crctable.cpp">crctable.cpp</a>
<dd>libbzip2 table for doing CRCs.
<dt><a href="decompress.cpp">decompress.cpp</a>
<dd>Decompression machinery of libbzip2.
<dt><a href="huffman.cpp">huffman.cpp</a>
<dd>Huffman coding low-level stuff of libbzip2.
<dt><a href="randtable.cpp">randtable.cpp</a>
<dd>libbzip2 table for randomising repetitive blocks.
<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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<dl>
<dt><a href="msvs/">msvs</a>
<dd>Contains Microsoft* Visual Studio* workspace for building and running the example (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>
<div class="changes">
<div class="h3-alike">Usage</div>
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<dl>
<dt><tt>fgbzip2 <i>-h</i></tt>
<dd>Prints the help for command line options
<dt><tt>fgbzip2 [<i>-b</i>=value] [<i>-v</i>] [<i>-l</i>=value] [<i>-a</i>=value] [<i>filename</i>]</tt>
<dd><i>-b</i> block size in 100 Kb chunks, [1 .. 9]<br>
<i>-v</i> print diagnostic output to screen<br>
<i>-l</i> used memory limit for compression algorithm with 1MB (minimum) granularity<br>
<i>-a</i> name of the used graph async realization - can be async_node or async_msg<br>
<i>filename</i> name of the file to compress<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, e.g., <tt>fgbzip2 -b=1 -a fgbzip2</tt>.
</dl>
</div>
</div>
<br>
<a href="../index.html">Up to parent directory</a>
<hr>
<a name="copyright"></a>
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<div class="h3-alike">Legal Information</div>
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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
</p>
<p>
The "libbzip2" sources for this example is
Copyright (c) 1996-2010 Julian R Seward.
All rights reserved.
</p>
<p>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
<ol>
<li>Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
<li>The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
<li>Altered source versions must be plainly marked as such, and must
not be misrepresented as being the original software.
<li>The name of the author may not be used to endorse or promote
products derived from this software without specific prior written
permission.
</ol>
</p>
<p>
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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