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<div class="title">inner_product.h</div> </div>
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<a href="inner__product_8h.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) 2017-2019, NVIDIA CORPORATION. All rights reserved.</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without modification, are permitted</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * provided that the following conditions are met:</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * * Redistributions of source code must retain the above copyright notice, this list of</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * conditions and the following disclaimer.</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * * Redistributions in binary form must reproduce the above copyright notice, this list of</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * conditions and the following disclaimer in the documentation and/or other materials</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * provided with the distribution.</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * * Neither the name of the NVIDIA CORPORATION nor the names of its contributors may be used</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * to endorse or promote products derived from this software without specific prior written</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * permission.</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"> * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * STRICT LIABILITY, OR TOR (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> *</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> **************************************************************************************************/</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#pragma once</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include "<a class="code" href="cutlass_8h.html">cutlass/cutlass.h</a>"</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include "<a class="code" href="array_8h.html">cutlass/array.h</a>"</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="keyword">namespace </span><a class="code" href="namespacecutlass.html">cutlass</a> {</div><div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="namespacecutlass_1_1reference.html"> 34</a></span> <span class="keyword">namespace </span>reference {</div><div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="namespacecutlass_1_1reference_1_1detail.html"> 35</a></span> <span class="keyword">namespace </span>detail {</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#pragma hd_warning_disable // Suppresses warnings when attempting to instantiate with a</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="comment">// host-only type</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Atype, <span class="keyword">typename</span> Btype, <span class="keyword">typename</span> Ctype></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <a class="code" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a></div><div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="namespacecutlass_1_1reference_1_1detail.html#ad5c9f4482c0e1544bd7b033f5556c3c0"> 44</a></span> Ctype <a class="code" href="namespacecutlass_1_1reference_1_1detail.html#ad5c9f4482c0e1544bd7b033f5556c3c0">inner_product</a>(Atype a, Btype b, Ctype c) {</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">return</span> Ctype(a) * Ctype(b) + c;</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> }</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="keyword">template</span> <></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <a class="code" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a></div><div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="namespacecutlass_1_1reference_1_1detail.html#abb90196166f66eba1abd99aae48c184b"> 51</a></span> <span class="keywordtype">int</span> inner_product<Array<bin1_t, 32>, Array<bin1_t, 32>, <span class="keywordtype">int</span>>(</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  Array<bin1_t, 32> a,</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  Array<bin1_t, 32> b,</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordtype">int</span> c) {</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>  <span class="keywordtype">int</span> accum = 0;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> bit = 0; bit < 32; bit++) {</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  accum += a[bit] ^ b[bit];</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">return</span> accum + c;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> }</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment">/*</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment">template <></span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment">CUTLASS_HOST_DEVICE</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment">int inner_product<Array<int4b_t, 8>, Array<int4b_t, 8>, int>(</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment"> Array<int4b_t, 8> a,</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"> Array<int4b_t, 8> b,</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"> int c) {</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"></span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"> int accum = 0;</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> for (int k = 0; k < 8; k++) {</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> accum += a[k] * b[k];</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> }</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"> return accum + c;</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment">}</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment"></span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment">template <></span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment">CUTLASS_HOST_DEVICE</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment">int inner_product<Array<uint4b_t, 8>, Array<uint4b_t, 8>, int>(</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"> Array<uint4b_t, 8> a,</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment"> Array<uint4b_t, 8> b,</span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment"> int c) {</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment"></span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment"> int accum = 0;</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment"> for (int k = 0; k < 8; k++) {</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"> accum += a[k] * b[k];</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment"> }</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment"> return accum + c;</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment">}</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment">*/</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="keyword">template</span> <<span class="keyword">typename</span> SrcType, <span class="keyword">typename</span> DstType></div><div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="structcutlass_1_1reference_1_1detail_1_1Cast.html"> 98</a></span> <span class="keyword">struct </span><a class="code" href="structcutlass_1_1reference_1_1detail_1_1Cast.html">Cast</a> {</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">// Default behavior: convert to the destination type</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="preprocessor">#pragma hd_warning_disable // Suppresses warnings when attempting to instantiate complex<T> with a</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="comment">// host-only type</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <a class="code" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a></div><div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="structcutlass_1_1reference_1_1detail_1_1Cast.html#a4f708d02a945435beaf9e3f4e35eaf58"> 103</a></span>  <span class="keyword">static</span> DstType <a class="code" href="structcutlass_1_1reference_1_1detail_1_1Cast.html#a4f708d02a945435beaf9e3f4e35eaf58">apply</a>(SrcType src) { <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>DstType<span class="keyword">></span>(src); };</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> };</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="keyword">template</span> <></div><div class="line"><a name="l00107"></a><span class="lineno"><a class="line" href="structcutlass_1_1reference_1_1detail_1_1Cast_3_01float_00_01int8__t_01_4.html"> 107</a></span> <span class="keyword">struct </span><a class="code" href="structcutlass_1_1reference_1_1detail_1_1Cast.html">Cast</a><float, int8_t> {</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a></div><div class="line"><a name="l00109"></a><span class="lineno"><a class="line" href="structcutlass_1_1reference_1_1detail_1_1Cast_3_01float_00_01int8__t_01_4.html#a6f14ff7b5626a9251957732e602177a4"> 109</a></span>  <span class="keyword">static</span> int8_t <a class="code" href="structcutlass_1_1reference_1_1detail_1_1Cast_3_01float_00_01int8__t_01_4.html#a6f14ff7b5626a9251957732e602177a4">apply</a>(<span class="keywordtype">float</span> src) {</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="comment">// Clamp to the range of signed 8-bit integers.</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>int8_t<span class="keyword">></span>(fmaxf(-128.f, fminf(127.f, src)));</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  };</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> };</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="keyword">template</span> <></div><div class="line"><a name="l00116"></a><span class="lineno"><a class="line" href="structcutlass_1_1reference_1_1detail_1_1Cast_3_01float_00_01uint8__t_01_4.html"> 116</a></span> <span class="keyword">struct </span><a class="code" href="structcutlass_1_1reference_1_1detail_1_1Cast.html">Cast</a><float, uint8_t> {</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <a class="code" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a></div><div class="line"><a name="l00118"></a><span class="lineno"><a class="line" href="structcutlass_1_1reference_1_1detail_1_1Cast_3_01float_00_01uint8__t_01_4.html#a7651ff6200842b6ab786e6d720339b3b"> 118</a></span>  <span class="keyword">static</span> uint8_t <a class="code" href="structcutlass_1_1reference_1_1detail_1_1Cast_3_01float_00_01uint8__t_01_4.html#a7651ff6200842b6ab786e6d720339b3b">apply</a>(<span class="keywordtype">float</span> src) {</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="comment">// Clamp to the range of signed 8-bit integers.</span></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>uint8_t<span class="keyword">></span>(fmaxf(0.f, fminf(255.f, src)));</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  };</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> };</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> } <span class="comment">// namespace detail</span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> } <span class="comment">// namespace reference</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> } <span class="comment">// namespace cutlass</span></div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div><div class="ttc" id="namespacecutlass_html"><div class="ttname"><a href="namespacecutlass.html">cutlass</a></div><div class="ttdef"><b>Definition:</b> aligned_buffer.h:35</div></div>
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<div class="ttc" id="structcutlass_1_1reference_1_1detail_1_1Cast_html_a4f708d02a945435beaf9e3f4e35eaf58"><div class="ttname"><a href="structcutlass_1_1reference_1_1detail_1_1Cast.html#a4f708d02a945435beaf9e3f4e35eaf58">cutlass::reference::detail::Cast::apply</a></div><div class="ttdeci">static CUTLASS_HOST_DEVICE DstType apply(SrcType src)</div><div class="ttdef"><b>Definition:</b> inner_product.h:103</div></div>
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<div class="ttc" id="namespacecutlass_1_1reference_1_1detail_html_ad5c9f4482c0e1544bd7b033f5556c3c0"><div class="ttname"><a href="namespacecutlass_1_1reference_1_1detail.html#ad5c9f4482c0e1544bd7b033f5556c3c0">cutlass::reference::detail::inner_product</a></div><div class="ttdeci">CUTLASS_HOST_DEVICE Ctype inner_product(Atype a, Btype b, Ctype c)</div><div class="ttdoc">Template function to compute an inner product. </div><div class="ttdef"><b>Definition:</b> inner_product.h:44</div></div>
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<div class="ttc" id="array_8h_html"><div class="ttname"><a href="array_8h.html">array.h</a></div><div class="ttdoc">Statically sized array of elements that accommodates all CUTLASS-supported numeric types and is safe ...</div></div>
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<div class="ttc" id="cutlass_8h_html_a28c2443a142676d3d71effdae1a986b1"><div class="ttname"><a href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a></div><div class="ttdeci">#define CUTLASS_HOST_DEVICE</div><div class="ttdef"><b>Definition:</b> cutlass.h:89</div></div>
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<div class="ttc" id="structcutlass_1_1reference_1_1detail_1_1Cast_3_01float_00_01uint8__t_01_4_html_a7651ff6200842b6ab786e6d720339b3b"><div class="ttname"><a href="structcutlass_1_1reference_1_1detail_1_1Cast_3_01float_00_01uint8__t_01_4.html#a7651ff6200842b6ab786e6d720339b3b">cutlass::reference::detail::Cast< float, uint8_t >::apply</a></div><div class="ttdeci">static CUTLASS_HOST_DEVICE uint8_t apply(float src)</div><div class="ttdef"><b>Definition:</b> inner_product.h:118</div></div>
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<div class="ttc" id="structcutlass_1_1reference_1_1detail_1_1Cast_html"><div class="ttname"><a href="structcutlass_1_1reference_1_1detail_1_1Cast.html">cutlass::reference::detail::Cast</a></div><div class="ttdef"><b>Definition:</b> inner_product.h:98</div></div>
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<div class="ttc" id="cutlass_8h_html"><div class="ttname"><a href="cutlass_8h.html">cutlass.h</a></div><div class="ttdoc">Basic include for CUTLASS. </div></div>
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<div class="ttc" id="structcutlass_1_1reference_1_1detail_1_1Cast_3_01float_00_01int8__t_01_4_html_a6f14ff7b5626a9251957732e602177a4"><div class="ttname"><a href="structcutlass_1_1reference_1_1detail_1_1Cast_3_01float_00_01int8__t_01_4.html#a6f14ff7b5626a9251957732e602177a4">cutlass::reference::detail::Cast< float, int8_t >::apply</a></div><div class="ttdeci">static CUTLASS_HOST_DEVICE int8_t apply(float src)</div><div class="ttdef"><b>Definition:</b> inner_product.h:109</div></div>
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