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<div class="title">vector-range.cpp</div> </div>
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<a href="vector-range_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* =========================================================================</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> Copyright (c) 2010-2016, Institute for Microelectronics,</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> Institute for Analysis and Scientific Computing,</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> TU Wien.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> Portions of this software are copyright by UChicago Argonne, LLC.</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"></span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> -----------------</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> ViennaCL - The Vienna Computing Library</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> -----------------</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"></span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> Project Head: Karl Rupp rupp@iue.tuwien.ac.at</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"></span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> (A list of authors and contributors can be found in the PDF manual)</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"></span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> License: MIT (X11), see file LICENSE in the base directory</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">============================================================================= */</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">// Activate ublas support in ViennaCL</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#define VIENNACL_WITH_UBLAS</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">// System headers</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <iostream></span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <string></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment">// ViennaCL headers</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include "<a class="code" href="scalar_8hpp.html">viennacl/scalar.hpp</a>"</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include "<a class="code" href="matrix_8hpp.html">viennacl/matrix.hpp</a>"</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include "<a class="code" href="prod_8hpp.html">viennacl/linalg/prod.hpp</a>"</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include "<a class="code" href="vector__proxy_8hpp.html">viennacl/vector_proxy.hpp</a>"</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment">// Boost headers</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#include "boost/numeric/ublas/vector.hpp"</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#include "boost/numeric/ublas/vector_proxy.hpp"</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include "boost/numeric/ublas/io.hpp"</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="keywordtype">int</span> <a class="code" href="tests_2src_2bisect_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a> (<span class="keywordtype">int</span>, <span class="keyword">const</span> <span class="keywordtype">char</span> **)</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> {</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="comment">//feel free to change the floating point type to 'double' if supported by your hardware</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">typedef</span> <span class="keywordtype">float</span> <a class="code" href="fft__1d_8cpp.html#ad5c19ca4f47d3f8ec21232a5af2624e5">ScalarType</a>;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">typedef</span> boost::numeric::ublas::vector<ScalarType> VectorType;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">typedef</span> <a class="code" href="classviennacl_1_1vector.html">viennacl::vector<ScalarType></a> VCLVectorType;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  std::size_t dim_large = 7;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  std::size_t dim_small = 3;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  VectorType ublas_v1(dim_large);</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  VectorType ublas_v2(dim_small);</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">for</span> (std::size_t i=0; i<ublas_v1.size(); ++i)</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  ublas_v1(i) = <a class="code" href="fft__1d_8cpp.html#ad5c19ca4f47d3f8ec21232a5af2624e5">ScalarType</a>(i+1);</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">for</span> (std::size_t i=0; i<ublas_v2.size(); ++i)</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  ublas_v2(i) = <a class="code" href="fft__1d_8cpp.html#ad5c19ca4f47d3f8ec21232a5af2624e5">ScalarType</a>(dim_large + i);</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <a class="code" href="namespaceviennacl.html#ae92c62d9fd59870c1f6b881e391d32aa">boost::numeric::ublas::range</a> ublas_r1(0, dim_small); <span class="comment">//the first 'dim_small' entries</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <a class="code" href="namespaceviennacl.html#ae92c62d9fd59870c1f6b881e391d32aa">boost::numeric::ublas::range</a> ublas_r2(dim_small - 1, 2*dim_small - 1); <span class="comment">// 'dim_small' entries somewhere from the middle</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <a class="code" href="namespaceviennacl.html#ae92c62d9fd59870c1f6b881e391d32aa">boost::numeric::ublas::range</a> ublas_r3(dim_large - dim_small, dim_large); <span class="comment">// the last 'dim_small' entries</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  boost::numeric::ublas::vector_range<VectorType> ublas_v1_sub1(ublas_v1, ublas_r1); <span class="comment">// front part of vector v_1</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  boost::numeric::ublas::vector_range<VectorType> ublas_v1_sub2(ublas_v1, ublas_r2); <span class="comment">// center part of vector v_1</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  boost::numeric::ublas::vector_range<VectorType> ublas_v1_sub3(ublas_v1, ublas_r3); <span class="comment">// tail of vector v_1</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  VCLVectorType vcl_v1(dim_large);</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  VCLVectorType vcl_v2(dim_small);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <a class="code" href="namespaceviennacl.html#a10b7f8cf6b8864a7aa196d670481a453">viennacl::copy</a>(ublas_v1, vcl_v1);</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <a class="code" href="namespaceviennacl.html#a10b7f8cf6b8864a7aa196d670481a453">viennacl::copy</a>(ublas_v2, vcl_v2);</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <a class="code" href="classviennacl_1_1basic__range.html">viennacl::range</a> vcl_r1(0, dim_small); <span class="comment">//the first 'dim_small' entries</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <a class="code" href="classviennacl_1_1basic__range.html">viennacl::range</a> vcl_r2(dim_small - 1, 2*dim_small - 1); <span class="comment">// 'dim_small' entries somewhere from the middle</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <a class="code" href="classviennacl_1_1basic__range.html">viennacl::range</a> vcl_r3(dim_large - dim_small, dim_large); <span class="comment">// the last 'dim_small' entries</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <a class="code" href="classviennacl_1_1vector__range.html">viennacl::vector_range<VCLVectorType></a> vcl_v1_sub1(vcl_v1, vcl_r1); <span class="comment">// front part of vector v_1</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <a class="code" href="classviennacl_1_1vector__range.html">viennacl::vector_range<VCLVectorType></a> vcl_v1_sub2(vcl_v1, vcl_r2); <span class="comment">// center part of vector v_1</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <a class="code" href="classviennacl_1_1vector__range.html">viennacl::vector_range<VCLVectorType></a> vcl_v1_sub3(vcl_v1, vcl_r3); <span class="comment">// tail of vector v_1</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  ublas_v1_sub1 = ublas_v2;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="namespaceviennacl.html#a10b7f8cf6b8864a7aa196d670481a453">viennacl::copy</a>(ublas_v2, vcl_v1_sub1);</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <a class="code" href="namespaceviennacl.html#a10b7f8cf6b8864a7aa196d670481a453">viennacl::copy</a>(vcl_v1_sub1, ublas_v2);</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  ublas_v1_sub1 += ublas_v1_sub1;</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  vcl_v1_sub1 += vcl_v1_sub1;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  ublas_v1_sub2 += ublas_v1_sub2;</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  vcl_v1_sub2 += vcl_v1_sub2;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  ublas_v1_sub3 += ublas_v1_sub3;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  vcl_v1_sub3 += vcl_v1_sub3;</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  std::cout << <span class="stringliteral">"ublas: "</span> << ublas_v1 << std::endl;</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  std::cout << <span class="stringliteral">"ViennaCL: "</span> << vcl_v1 << std::endl;</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  std::cout << <span class="stringliteral">"!!!! TUTORIAL COMPLETED SUCCESSFULLY !!!!"</span> << std::endl;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">return</span> EXIT_SUCCESS;</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> }</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div>
<div class="ttc" id="prod_8hpp_html"><div class="ttname"><a href="prod_8hpp.html">prod.hpp</a></div><div class="ttdoc">Generic interface for matrix-vector and matrix-matrix products. See viennacl/linalg/vector_operations...</div></div>
<div class="ttc" id="matrix_8hpp_html"><div class="ttname"><a href="matrix_8hpp.html">matrix.hpp</a></div><div class="ttdoc">Implementation of the dense matrix class. </div></div>
<div class="ttc" id="tests_2src_2bisect_8cpp_html_ae66f6b31b5ad750f1fe042a706a4e3d4"><div class="ttname"><a href="tests_2src_2bisect_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a></div><div class="ttdeci">int main()</div><div class="ttdef"><b>Definition:</b> <a href="tests_2src_2bisect_8cpp_source.html#l00091">bisect.cpp:91</a></div></div>
<div class="ttc" id="namespaceviennacl_html_ae92c62d9fd59870c1f6b881e391d32aa"><div class="ttname"><a href="namespaceviennacl.html#ae92c62d9fd59870c1f6b881e391d32aa">viennacl::range</a></div><div class="ttdeci">basic_range range</div><div class="ttdef"><b>Definition:</b> <a href="forwards_8h_source.html#l00424">forwards.h:424</a></div></div>
<div class="ttc" id="classviennacl_1_1vector__range_html"><div class="ttname"><a href="classviennacl_1_1vector__range.html">viennacl::vector_range</a></div><div class="ttdoc">Class for representing non-strided subvectors of a bigger vector x. </div><div class="ttdef"><b>Definition:</b> <a href="forwards_8h_source.html#l00434">forwards.h:434</a></div></div>
<div class="ttc" id="classviennacl_1_1vector_html"><div class="ttname"><a href="classviennacl_1_1vector.html">viennacl::vector< ScalarType ></a></div></div>
<div class="ttc" id="vector__proxy_8hpp_html"><div class="ttname"><a href="vector__proxy_8hpp.html">vector_proxy.hpp</a></div><div class="ttdoc">Proxy classes for vectors. </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< NumericT > &cpu_vec, circulant_matrix< NumericT, AlignmentV > &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="classviennacl_1_1basic__range_html"><div class="ttname"><a href="classviennacl_1_1basic__range.html">viennacl::basic_range</a></div><div class="ttdoc">A range class that refers to an interval [start, stop), where 'start' is included, and 'stop' is excluded. </div><div class="ttdef"><b>Definition:</b> <a href="forwards_8h_source.html#l00424">forwards.h:424</a></div></div>
<div class="ttc" id="fft__1d_8cpp_html_ad5c19ca4f47d3f8ec21232a5af2624e5"><div class="ttname"><a href="fft__1d_8cpp.html#ad5c19ca4f47d3f8ec21232a5af2624e5">ScalarType</a></div><div class="ttdeci">float ScalarType</div><div class="ttdef"><b>Definition:</b> <a href="fft__1d_8cpp_source.html#l00042">fft_1d.cpp:42</a></div></div>
<div class="ttc" id="scalar_8hpp_html"><div class="ttname"><a href="scalar_8hpp.html">scalar.hpp</a></div><div class="ttdoc">Implementation of the ViennaCL scalar class. </div></div>
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