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<div class="title">bisect_small.hpp</div>  </div>
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<a href="bisect__small_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#ifndef VIENNACL_LINALG_DETAIL_BISECT_SMALL_HPP_</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="preprocessor">#define VIENNACL_LINALG_DETAIL_BISECT_SMALL_HPP_</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;</div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">/* =========================================================================</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">   Copyright (c) 2010-2016, Institute for Microelectronics,</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">                            Institute for Analysis and Scientific Computing,</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">                            TU Wien.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">   Portions of this software are copyright by UChicago Argonne, LLC.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">                            -----------------</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">                  ViennaCL - The Vienna Computing Library</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">                            -----------------</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">   Project Head:    Karl Rupp                   rupp@iue.tuwien.ac.at</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">   (A list of authors and contributors can be found in the manual)</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment">   License:         MIT (X11), see file LICENSE in the base directory</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment">============================================================================= */</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;</div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="comment">// includes, system</span></div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#include &lt;stdlib.h&gt;</span></div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor">#include &lt;stdio.h&gt;</span></div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="preprocessor">#include &lt;string.h&gt;</span></div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#include &lt;math.h&gt;</span></div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="preprocessor">#include &lt;float.h&gt;</span></div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="comment">// includes, project</span></div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="structs_8hpp.html">viennacl/linalg/detail/bisect/structs.hpp</a>&quot;</span></div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="comment">// includes, kernels</span></div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="detail_2bisect_2bisect__kernel__calls_8hpp.html">viennacl/linalg/detail/bisect/bisect_kernel_calls.hpp</a>&quot;</span></div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="keyword">namespace </span>viennacl</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;{</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="keyword">namespace </span>linalg</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;{</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="keyword">namespace </span>detail</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;{</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> NumericT&gt;</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;<span class="keywordtype">void</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="namespaceviennacl_1_1linalg_1_1detail.html#a063f8624d56ee752085e09193a3bf86d">   61</a></span>&#160;<a class="code" href="namespaceviennacl_1_1linalg_1_1detail.html#a063f8624d56ee752085e09193a3bf86d">computeEigenvaluesSmallMatrix</a>(<span class="keyword">const</span> <a class="code" href="structviennacl_1_1linalg_1_1detail_1_1_input_data.html">InputData&lt;NumericT&gt;</a> &amp;input, <a class="code" href="structviennacl_1_1linalg_1_1detail_1_1_result_data_small.html">ResultDataSmall&lt;NumericT&gt;</a> &amp;result,</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;                              <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> mat_size,</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;                              <span class="keyword">const</span> <a class="code" href="tests_2src_2bisect_8cpp.html#a52b5d30a2d7b064678644a3bf49b7f6c">NumericT</a> lg, <span class="keyword">const</span> <a class="code" href="tests_2src_2bisect_8cpp.html#a52b5d30a2d7b064678644a3bf49b7f6c">NumericT</a> ug,</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;                              <span class="keyword">const</span> <a class="code" href="tests_2src_2bisect_8cpp.html#a52b5d30a2d7b064678644a3bf49b7f6c">NumericT</a> precision)</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;{</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;  <a class="code" href="namespaceviennacl_1_1linalg_1_1detail.html#a049a115f9821da18cc960a5170bd2692">viennacl::linalg::detail::bisectSmall</a>( input, result, mat_size, lg, ug, precision);</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;}</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> NumericT&gt;</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="keywordtype">void</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="namespaceviennacl_1_1linalg_1_1detail.html#ad98be76dcc8b9ca304993da0d53389c1">   78</a></span>&#160;<a class="code" href="namespaceviennacl_1_1linalg_1_1detail.html#ad98be76dcc8b9ca304993da0d53389c1">processResultSmallMatrix</a>(<a class="code" href="structviennacl_1_1linalg_1_1detail_1_1_result_data_small.html">ResultDataSmall&lt;NumericT&gt;</a> &amp;result,</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;                         <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> mat_size)</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;{</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;  <span class="comment">// copy data back to host</span></div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;  std::vector&lt;NumericT&gt; left(mat_size);</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;  std::vector&lt;unsigned int&gt; left_count(mat_size);</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;  <a class="code" href="namespaceviennacl.html#a10b7f8cf6b8864a7aa196d670481a453">viennacl::copy</a>(result.<a class="code" href="structviennacl_1_1linalg_1_1detail_1_1_result_data_small.html#ada572d22b80ffc72108476906c35df20">vcl_g_left</a>, left);</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;  <a class="code" href="namespaceviennacl.html#a10b7f8cf6b8864a7aa196d670481a453">viennacl::copy</a>(result.<a class="code" href="structviennacl_1_1linalg_1_1detail_1_1_result_data_small.html#a9f2ef847143e68d1b1718ada0949eaa0">vcl_g_left_count</a>, left_count);</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;  <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 0; i &lt; mat_size; ++i)</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;  {</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;      result.<a class="code" href="structviennacl_1_1linalg_1_1detail_1_1_result_data_small.html#aeba7abab2c64e83f40e4bf2d21348e9b">std_eigenvalues</a>[left_count[i]] = left[i];</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;  }</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;}</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;}  <span class="comment">// namespace detail</span></div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;}  <span class="comment">// namespace linalg</span></div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;} <span class="comment">// namespace viennacl</span></div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="ttc" id="structviennacl_1_1linalg_1_1detail_1_1_result_data_small_html_aeba7abab2c64e83f40e4bf2d21348e9b"><div class="ttname"><a href="structviennacl_1_1linalg_1_1detail_1_1_result_data_small.html#aeba7abab2c64e83f40e4bf2d21348e9b">viennacl::linalg::detail::ResultDataSmall::std_eigenvalues</a></div><div class="ttdeci">std::vector&lt; NumericT &gt; std_eigenvalues</div><div class="ttdoc">eigenvalues (host side) </div><div class="ttdef"><b>Definition:</b> <a href="structs_8hpp_source.html#l00099">structs.hpp:99</a></div></div>
<div class="ttc" id="structs_8hpp_html"><div class="ttname"><a href="structs_8hpp.html">structs.hpp</a></div><div class="ttdoc">Helper structures to simplify variable handling. </div></div>
<div class="ttc" id="detail_2bisect_2bisect__kernel__calls_8hpp_html"><div class="ttname"><a href="detail_2bisect_2bisect__kernel__calls_8hpp.html">bisect_kernel_calls.hpp</a></div><div class="ttdoc">Kernel calls for the bisection algorithm. </div></div>
<div class="ttc" id="tests_2src_2bisect_8cpp_html_a52b5d30a2d7b064678644a3bf49b7f6c"><div class="ttname"><a href="tests_2src_2bisect_8cpp.html#a52b5d30a2d7b064678644a3bf49b7f6c">NumericT</a></div><div class="ttdeci">float NumericT</div><div class="ttdef"><b>Definition:</b> <a href="tests_2src_2bisect_8cpp_source.html#l00040">bisect.cpp:40</a></div></div>
<div class="ttc" id="structviennacl_1_1linalg_1_1detail_1_1_input_data_html"><div class="ttname"><a href="structviennacl_1_1linalg_1_1detail_1_1_input_data.html">viennacl::linalg::detail::InputData</a></div><div class="ttdoc">In this class the input matrix is stored. </div><div class="ttdef"><b>Definition:</b> <a href="structs_8hpp_source.html#l00053">structs.hpp:53</a></div></div>
<div class="ttc" id="structviennacl_1_1linalg_1_1detail_1_1_result_data_small_html_ada572d22b80ffc72108476906c35df20"><div class="ttname"><a href="structviennacl_1_1linalg_1_1detail_1_1_result_data_small.html#ada572d22b80ffc72108476906c35df20">viennacl::linalg::detail::ResultDataSmall::vcl_g_left</a></div><div class="ttdeci">viennacl::vector&lt; NumericT &gt; vcl_g_left</div><div class="ttdoc">left interval limits at the end of the computation </div><div class="ttdef"><b>Definition:</b> <a href="structs_8hpp_source.html#l00101">structs.hpp:101</a></div></div>
<div class="ttc" id="structviennacl_1_1linalg_1_1detail_1_1_result_data_small_html_a9f2ef847143e68d1b1718ada0949eaa0"><div class="ttname"><a href="structviennacl_1_1linalg_1_1detail_1_1_result_data_small.html#a9f2ef847143e68d1b1718ada0949eaa0">viennacl::linalg::detail::ResultDataSmall::vcl_g_left_count</a></div><div class="ttdeci">viennacl::vector&lt; unsigned int &gt; vcl_g_left_count</div><div class="ttdoc">number of eigenvalues smaller than the left interval limit </div><div class="ttdef"><b>Definition:</b> <a href="structs_8hpp_source.html#l00105">structs.hpp:105</a></div></div>
<div class="ttc" id="namespaceviennacl_1_1linalg_1_1detail_html_a063f8624d56ee752085e09193a3bf86d"><div class="ttname"><a href="namespaceviennacl_1_1linalg_1_1detail.html#a063f8624d56ee752085e09193a3bf86d">viennacl::linalg::detail::computeEigenvaluesSmallMatrix</a></div><div class="ttdeci">void computeEigenvaluesSmallMatrix(const InputData&lt; NumericT &gt; &amp;input, ResultDataSmall&lt; NumericT &gt; &amp;result, const unsigned int mat_size, const NumericT lg, const NumericT ug, const NumericT precision)</div><div class="ttdef"><b>Definition:</b> <a href="bisect__small_8hpp_source.html#l00061">bisect_small.hpp:61</a></div></div>
<div class="ttc" id="namespaceviennacl_1_1linalg_1_1detail_html_ad98be76dcc8b9ca304993da0d53389c1"><div class="ttname"><a href="namespaceviennacl_1_1linalg_1_1detail.html#ad98be76dcc8b9ca304993da0d53389c1">viennacl::linalg::detail::processResultSmallMatrix</a></div><div class="ttdeci">void processResultSmallMatrix(ResultDataSmall&lt; NumericT &gt; &amp;result, const unsigned int mat_size)</div><div class="ttdef"><b>Definition:</b> <a href="bisect__small_8hpp_source.html#l00078">bisect_small.hpp:78</a></div></div>
<div class="ttc" id="namespaceviennacl_html_a10b7f8cf6b8864a7aa196d670481a453"><div class="ttname"><a href="namespaceviennacl.html#a10b7f8cf6b8864a7aa196d670481a453">viennacl::copy</a></div><div class="ttdeci">void copy(std::vector&lt; NumericT &gt; &amp;cpu_vec, circulant_matrix&lt; NumericT, AlignmentV &gt; &amp;gpu_mat)</div><div class="ttdoc">Copies a circulant matrix from the std::vector to the OpenCL device (either GPU or multi-core CPU) ...</div><div class="ttdef"><b>Definition:</b> <a href="circulant__matrix_8hpp_source.html#l00150">circulant_matrix.hpp:150</a></div></div>
<div class="ttc" id="namespaceviennacl_1_1linalg_1_1detail_html_a049a115f9821da18cc960a5170bd2692"><div class="ttname"><a href="namespaceviennacl_1_1linalg_1_1detail.html#a049a115f9821da18cc960a5170bd2692">viennacl::linalg::detail::bisectSmall</a></div><div class="ttdeci">void bisectSmall(const InputData&lt; NumericT &gt; &amp;input, ResultDataSmall&lt; NumericT &gt; &amp;result, const unsigned int mat_size, const NumericT lg, const NumericT ug, const NumericT precision)</div><div class="ttdef"><b>Definition:</b> <a href="detail_2bisect_2bisect__kernel__calls_8hpp_source.html#l00059">bisect_kernel_calls.hpp:59</a></div></div>
<div class="ttc" id="structviennacl_1_1linalg_1_1detail_1_1_result_data_small_html"><div class="ttname"><a href="structviennacl_1_1linalg_1_1detail_1_1_result_data_small.html">viennacl::linalg::detail::ResultDataSmall</a></div><div class="ttdoc">In this class the data of the result for small matrices is stored. </div><div class="ttdef"><b>Definition:</b> <a href="structs_8hpp_source.html#l00096">structs.hpp:96</a></div></div>
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