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<div class="title">QSymmS8QuantizationScheme Struct Reference</div> </div>
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<p><code>#include &lt;<a class="el" href="_network_quantization_scheme_8hpp_source.xhtml">NetworkQuantizationScheme.hpp</a>&gt;</code></p>
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Inheritance diagram for QSymmS8QuantizationScheme:</div>
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<img src="structarmnn_1_1_q_symm_s8_quantization_scheme.png" usemap="#QSymmS8QuantizationScheme_map" alt=""/>
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<area href="structarmnn_1_1_i_quantization_scheme.xhtml" alt="IQuantizationScheme" shape="rect" coords="0,0,185,24"/>
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Public Member Functions</h2></td></tr>
<tr class="memitem:a9fb07d8d7554a1502e732b8afa92040a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespacearmnn.xhtml#a9b8e5a95f8c061bbbcdb036915dcb61a">OffsetScalePair</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarmnn_1_1_q_symm_s8_quantization_scheme.xhtml#a9fb07d8d7554a1502e732b8afa92040a">ComputeScheme</a> (double min, double max) const override</td></tr>
<tr class="separator:a9fb07d8d7554a1502e732b8afa92040a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1046eb36ff708a1b84f9a6bf0103fbc7"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarmnn_1_1_q_symm_s8_quantization_scheme.xhtml#a1046eb36ff708a1b84f9a6bf0103fbc7">NumBits</a> () const override</td></tr>
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<tr class="memitem:a57d67416d97cb7138e43656b43feb797"><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespacearmnn.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6">DataType</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarmnn_1_1_q_symm_s8_quantization_scheme.xhtml#a57d67416d97cb7138e43656b43feb797">GetDataType</a> () const override</td></tr>
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<tr class="inherit_header pub_methods_structarmnn_1_1_i_quantization_scheme"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_structarmnn_1_1_i_quantization_scheme')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="structarmnn_1_1_i_quantization_scheme.xhtml">IQuantizationScheme</a></td></tr>
<tr class="memitem:ac7ce71800ca0ebb1222958717a834c9a inherit pub_methods_structarmnn_1_1_i_quantization_scheme"><td class="memItemLeft" align="right" valign="top">virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structarmnn_1_1_i_quantization_scheme.xhtml#ac7ce71800ca0ebb1222958717a834c9a">~IQuantizationScheme</a> ()</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<p class="definition">Definition at line <a class="el" href="_network_quantization_scheme_8hpp_source.xhtml#l00100">100</a> of file <a class="el" href="_network_quantization_scheme_8hpp_source.xhtml">NetworkQuantizationScheme.hpp</a>.</p>
</div><h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a9fb07d8d7554a1502e732b8afa92040a">&#9670;&nbsp;</a></span>ComputeScheme()</h2>
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<td class="memname"><a class="el" href="namespacearmnn.xhtml#a9b8e5a95f8c061bbbcdb036915dcb61a">OffsetScalePair</a> ComputeScheme </td>
<td>(</td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>min</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>max</em>&#160;</td>
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<td></td>
<td>)</td>
<td></td><td> const</td>
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<p>Implements <a class="el" href="structarmnn_1_1_i_quantization_scheme.xhtml#a6a5561395e9693f02258b49dfcc009b4">IQuantizationScheme</a>.</p>
<p class="definition">Definition at line <a class="el" href="_network_quantization_scheme_8hpp_source.xhtml#l00102">102</a> of file <a class="el" href="_network_quantization_scheme_8hpp_source.xhtml">NetworkQuantizationScheme.hpp</a>.</p>
<p class="reference">References <a class="el" href="structarmnn_1_1_i_quantization_scheme.xhtml#a7ebe7ca1c6100440fcc130217f43561b">IQuantizationScheme::NumBits()</a>.</p>
<div class="fragment"><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; {</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keywordflow">if</span> (min &gt; max)</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; {</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <span class="keywordflow">throw</span> InvalidArgumentException(<span class="stringliteral">&quot;min &gt; max will result in invalid quantization.&quot;</span>);</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; }</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="comment">// To avoid dividing by zero when quantizing a zero filled tensor</span></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="keywordflow">if</span> (min == 0.0 &amp;&amp; max == 0.0)</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; {</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; max = 1.0;</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; }</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="keywordtype">double</span> highest = (1 &lt;&lt; (<a class="code" href="structarmnn_1_1_q_symm_s8_quantization_scheme.xhtml#a1046eb36ff708a1b84f9a6bf0103fbc7">NumBits</a>()-1)) - 1; <span class="comment">// (numbits-1) accounts for the sign bit</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160;</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <span class="keywordtype">double</span> extent = std::max(std::abs(min), std::abs(max));</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="keywordtype">double</span> scale = extent / highest;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; <span class="keywordflow">return</span> std::make_pair(static_cast&lt;float&gt;(scale), 0);</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; }</div><div class="ttc" id="structarmnn_1_1_q_symm_s8_quantization_scheme_xhtml_a1046eb36ff708a1b84f9a6bf0103fbc7"><div class="ttname"><a href="structarmnn_1_1_q_symm_s8_quantization_scheme.xhtml#a1046eb36ff708a1b84f9a6bf0103fbc7">armnn::QSymmS8QuantizationScheme::NumBits</a></div><div class="ttdeci">int NumBits() const override</div><div class="ttdef"><b>Definition:</b> <a href="_network_quantization_scheme_8hpp_source.xhtml#l00123">NetworkQuantizationScheme.hpp:123</a></div></div>
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<a id="a57d67416d97cb7138e43656b43feb797"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a57d67416d97cb7138e43656b43feb797">&#9670;&nbsp;</a></span>GetDataType()</h2>
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<td class="memname"><a class="el" href="namespacearmnn.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6">DataType</a> GetDataType </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Implements <a class="el" href="structarmnn_1_1_i_quantization_scheme.xhtml#ad23181f9f8fcc85758f62c49fc7ca23f">IQuantizationScheme</a>.</p>
<p class="definition">Definition at line <a class="el" href="_network_quantization_scheme_8hpp_source.xhtml#l00125">125</a> of file <a class="el" href="_network_quantization_scheme_8hpp_source.xhtml">NetworkQuantizationScheme.hpp</a>.</p>
<p class="reference">References <a class="el" href="namespacearmnn.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6a9945327825b115e93a3b89f4302e76db">armnn::QSymmS8</a>.</p>
<div class="fragment"><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160;{ <span class="keywordflow">return</span> <a class="code" href="namespacearmnn.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6a9945327825b115e93a3b89f4302e76db">DataType::QSymmS8</a>; }</div><div class="ttc" id="namespacearmnn_xhtml_ad8ed01ff3ff33333d8e19db4d2818bb6a9945327825b115e93a3b89f4302e76db"><div class="ttname"><a href="namespacearmnn.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6a9945327825b115e93a3b89f4302e76db">armnn::DataType::QSymmS8</a></div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a1046eb36ff708a1b84f9a6bf0103fbc7">&#9670;&nbsp;</a></span>NumBits()</h2>
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<td class="memname">int NumBits </td>
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<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Implements <a class="el" href="structarmnn_1_1_i_quantization_scheme.xhtml#a7ebe7ca1c6100440fcc130217f43561b">IQuantizationScheme</a>.</p>
<p class="definition">Definition at line <a class="el" href="_network_quantization_scheme_8hpp_source.xhtml#l00123">123</a> of file <a class="el" href="_network_quantization_scheme_8hpp_source.xhtml">NetworkQuantizationScheme.hpp</a>.</p>
<div class="fragment"><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160;{ <span class="keywordflow">return</span> 8; }</div></div><!-- fragment -->
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li>src/armnn/<a class="el" href="_network_quantization_scheme_8hpp_source.xhtml">NetworkQuantizationScheme.hpp</a></li>
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