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| <div class="title">CLGEMMLowpQuantizeDownInt32ToUint8ScaleByFixedPoint Class Reference</div> </div> |
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| |
| <p>Basic function to execute <a class="el" href="classarm__compute_1_1_c_l_g_e_m_m_lowp_quantize_down_int32_to_uint8_scale_by_fixed_point.xhtml" title="Basic function to execute CLGEMMLowpQuantizeDownInt32ToUint8ScaleByFixedPoint on OpenCL. ">CLGEMMLowpQuantizeDownInt32ToUint8ScaleByFixedPoint</a> on OpenCL. |
| <a href="classarm__compute_1_1_c_l_g_e_m_m_lowp_quantize_down_int32_to_uint8_scale_by_fixed_point.xhtml#details">More...</a></p> |
| |
| <p><code>#include <<a class="el" href="_c_l_g_e_m_m_lowp_output_stage_8h_source.xhtml">CLGEMMLowpOutputStage.h</a>></code></p> |
| <div class="dynheader"> |
| Collaboration diagram for CLGEMMLowpQuantizeDownInt32ToUint8ScaleByFixedPoint:</div> |
| <div class="dyncontent"> |
| <div class="center"><iframe scrolling="no" frameborder="0" src="classarm__compute_1_1_c_l_g_e_m_m_lowp_quantize_down_int32_to_uint8_scale_by_fixed_point__coll__graph.svg" width="246" height="202"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe> |
| </div> |
| <center><span class="legend">[<a target="top" href="graph_legend.xhtml">legend</a>]</span></center></div> |
| <table class="memberdecls"> |
| <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a> |
| Public Member Functions</h2></td></tr> |
| <tr class="memitem:a15da37f661fdcd81c1f25c5d6bdc6abd"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classarm__compute_1_1_c_l_g_e_m_m_lowp_quantize_down_int32_to_uint8_scale_by_fixed_point.xhtml#a15da37f661fdcd81c1f25c5d6bdc6abd">configure</a> (const <a class="el" href="classarm__compute_1_1_i_c_l_tensor.xhtml">ICLTensor</a> *input, const <a class="el" href="classarm__compute_1_1_i_c_l_tensor.xhtml">ICLTensor</a> *bias, <a class="el" href="classarm__compute_1_1_i_c_l_tensor.xhtml">ICLTensor</a> *output, int result_fixedpoint_multiplier, int result_shift, int result_offset_after_shift, int min=0, int max=0)</td></tr> |
| <tr class="memdesc:a15da37f661fdcd81c1f25c5d6bdc6abd"><td class="mdescLeft"> </td><td class="mdescRight">Initialise the kernel's inputs, output. <a href="#a15da37f661fdcd81c1f25c5d6bdc6abd">More...</a><br /></td></tr> |
| <tr class="separator:a15da37f661fdcd81c1f25c5d6bdc6abd"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="inherit_header pub_methods_classarm__compute_1_1_i_c_l_simple_function"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classarm__compute_1_1_i_c_l_simple_function')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classarm__compute_1_1_i_c_l_simple_function.xhtml">ICLSimpleFunction</a></td></tr> |
| <tr class="memitem:aa8149af857c4bface8ad712e418a63f1 inherit pub_methods_classarm__compute_1_1_i_c_l_simple_function"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classarm__compute_1_1_i_c_l_simple_function.xhtml#aa8149af857c4bface8ad712e418a63f1">ICLSimpleFunction</a> ()</td></tr> |
| <tr class="memdesc:aa8149af857c4bface8ad712e418a63f1 inherit pub_methods_classarm__compute_1_1_i_c_l_simple_function"><td class="mdescLeft"> </td><td class="mdescRight">Default constructor. <a href="#aa8149af857c4bface8ad712e418a63f1">More...</a><br /></td></tr> |
| <tr class="separator:aa8149af857c4bface8ad712e418a63f1 inherit pub_methods_classarm__compute_1_1_i_c_l_simple_function"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:ab5fd6e96c07aaaed2747c7e16ed5951e inherit pub_methods_classarm__compute_1_1_i_c_l_simple_function"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classarm__compute_1_1_i_c_l_simple_function.xhtml#ab5fd6e96c07aaaed2747c7e16ed5951e">run</a> () overridefinal</td></tr> |
| <tr class="memdesc:ab5fd6e96c07aaaed2747c7e16ed5951e inherit pub_methods_classarm__compute_1_1_i_c_l_simple_function"><td class="mdescLeft"> </td><td class="mdescRight">Run the kernels contained in the function. <a href="#ab5fd6e96c07aaaed2747c7e16ed5951e">More...</a><br /></td></tr> |
| <tr class="separator:ab5fd6e96c07aaaed2747c7e16ed5951e inherit pub_methods_classarm__compute_1_1_i_c_l_simple_function"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="inherit_header pub_methods_classarm__compute_1_1_i_function"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classarm__compute_1_1_i_function')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classarm__compute_1_1_i_function.xhtml">IFunction</a></td></tr> |
| <tr class="memitem:ab921ecc3f3f6ae2b4bd61f3e1998d8c4 inherit pub_methods_classarm__compute_1_1_i_function"><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classarm__compute_1_1_i_function.xhtml#ab921ecc3f3f6ae2b4bd61f3e1998d8c4">~IFunction</a> ()=default</td></tr> |
| <tr class="memdesc:ab921ecc3f3f6ae2b4bd61f3e1998d8c4 inherit pub_methods_classarm__compute_1_1_i_function"><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <a href="#ab921ecc3f3f6ae2b4bd61f3e1998d8c4">More...</a><br /></td></tr> |
| <tr class="separator:ab921ecc3f3f6ae2b4bd61f3e1998d8c4 inherit pub_methods_classarm__compute_1_1_i_function"><td class="memSeparator" colspan="2"> </td></tr> |
| </table><table class="memberdecls"> |
| <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a> |
| Static Public Member Functions</h2></td></tr> |
| <tr class="memitem:ae91454a1d9774df968cdd3694b366ddf"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="classarm__compute_1_1_status.xhtml">Status</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classarm__compute_1_1_c_l_g_e_m_m_lowp_quantize_down_int32_to_uint8_scale_by_fixed_point.xhtml#ae91454a1d9774df968cdd3694b366ddf">validate</a> (const <a class="el" href="classarm__compute_1_1_i_tensor_info.xhtml">ITensorInfo</a> *input, const <a class="el" href="classarm__compute_1_1_i_tensor_info.xhtml">ITensorInfo</a> *bias, const <a class="el" href="classarm__compute_1_1_i_tensor_info.xhtml">ITensorInfo</a> *output, int min=0, int max=0)</td></tr> |
| <tr class="memdesc:ae91454a1d9774df968cdd3694b366ddf"><td class="mdescLeft"> </td><td class="mdescRight">Static function to check if given info will lead to a valid configuration of <a class="el" href="classarm__compute_1_1_c_l_g_e_m_m_lowp_quantize_down_int32_to_uint8_scale_by_fixed_point.xhtml">CLGEMMLowpQuantizeDownInt32ToUint8ScaleByFixedPoint</a>. <a href="#ae91454a1d9774df968cdd3694b366ddf">More...</a><br /></td></tr> |
| <tr class="separator:ae91454a1d9774df968cdd3694b366ddf"><td class="memSeparator" colspan="2"> </td></tr> |
| </table> |
| <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> |
| <div class="textblock"><p>Basic function to execute <a class="el" href="classarm__compute_1_1_c_l_g_e_m_m_lowp_quantize_down_int32_to_uint8_scale_by_fixed_point.xhtml" title="Basic function to execute CLGEMMLowpQuantizeDownInt32ToUint8ScaleByFixedPoint on OpenCL. ">CLGEMMLowpQuantizeDownInt32ToUint8ScaleByFixedPoint</a> on OpenCL. </p> |
| <p><a class="el" href="classarm__compute_1_1_c_l_g_e_m_m_lowp_quantize_down_int32_to_uint8_scale_by_fixed_point.xhtml" title="Basic function to execute CLGEMMLowpQuantizeDownInt32ToUint8ScaleByFixedPoint on OpenCL. ">CLGEMMLowpQuantizeDownInt32ToUint8ScaleByFixedPoint</a> depends on 3 parameters:</p> |
| <p>result_fixedpoint_multiplier, result_shift, result_offset_after_shift</p> |
| <p>The final result is:</p> |
| <p>(FixedPointMul(input[i][k], result_fixedpoint_multiplier) >> result_shift) + result_offset_after_shift</p> |
| <p>where FixedPointMul(x, y) is the nearest integer to the following mathematical expression, evaluated without overflow or intermediate rounding:</p> |
| <p>(x * y) / 2^31</p> |
| <p>For more information: <a href="https://github.com/google/gemmlowp/blob/master/public/output_stages.h#L68">https://github.com/google/gemmlowp/blob/master/public/output_stages.h#L68</a></p> |
| <p>In case the bias tensor is provided, the final result is:</p> |
| <p>((FixedPointMul(input[i][k] + bias[k], result_fixedpoint_multiplier)) >> result_shift) + result_offset_after_shift</p> |
| <p>This function calls the following OpenCL kernels:</p> |
| <ol type="1"> |
| <li><a class="el" href="classarm__compute_1_1_c_l_g_e_m_m_lowp_quantize_down_int32_to_uint8_scale_by_fixed_point_kernel.xhtml">CLGEMMLowpQuantizeDownInt32ToUint8ScaleByFixedPointKernel</a></li> |
| </ol> |
| <dl class="section note"><dt>Note</dt><dd>The function accepts also 2 optional input arguments (min and max) which can be used to implement "rectified linear unit" activation functions after the result is shifted right by result_shift </dd></dl> |
| |
| <p>Definition at line <a class="el" href="_c_l_g_e_m_m_lowp_output_stage_8h_source.xhtml#l00119">119</a> of file <a class="el" href="_c_l_g_e_m_m_lowp_output_stage_8h_source.xhtml">CLGEMMLowpOutputStage.h</a>.</p> |
| </div><h2 class="groupheader">Member Function Documentation</h2> |
| <a class="anchor" id="a15da37f661fdcd81c1f25c5d6bdc6abd"></a> |
| <div class="memitem"> |
| <div class="memproto"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">void configure </td> |
| <td>(</td> |
| <td class="paramtype">const <a class="el" href="classarm__compute_1_1_i_c_l_tensor.xhtml">ICLTensor</a> * </td> |
| <td class="paramname"><em>input</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">const <a class="el" href="classarm__compute_1_1_i_c_l_tensor.xhtml">ICLTensor</a> * </td> |
| <td class="paramname"><em>bias</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype"><a class="el" href="classarm__compute_1_1_i_c_l_tensor.xhtml">ICLTensor</a> * </td> |
| <td class="paramname"><em>output</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">int </td> |
| <td class="paramname"><em>result_fixedpoint_multiplier</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">int </td> |
| <td class="paramname"><em>result_shift</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">int </td> |
| <td class="paramname"><em>result_offset_after_shift</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">int </td> |
| <td class="paramname"><em>min</em> = <code>0</code>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">int </td> |
| <td class="paramname"><em>max</em> = <code>0</code> </td> |
| </tr> |
| <tr> |
| <td></td> |
| <td>)</td> |
| <td></td><td></td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Initialise the kernel's inputs, output. </p> |
| <dl class="params"><dt>Parameters</dt><dd> |
| <table class="params"> |
| <tr><td class="paramdir">[in]</td><td class="paramname">input</td><td>Input tensor. Data type supported: S32 </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">bias</td><td>Biases tensor. Only shared biases supported and it can be a nullptr if the biases addition is not required. Biases are 1D tensor with dimensions [OFM]. Data type supported: Same as <code>input</code>. </td></tr> |
| <tr><td class="paramdir">[out]</td><td class="paramname">output</td><td>Output tensor. Data type supported: Data type supported: QASYMM8 </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">result_fixedpoint_multiplier</td><td>Fixed point value to be multiplied to each element of the input matrix when once the result_offset has been add </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">result_shift</td><td>Number of bits to shift right the result after the fixed point multiplication </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">result_offset_after_shift</td><td>Offset to be applied to result before converting it back to QASYMM8 </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">min</td><td>(Optional) Min value used to saturate down the output result before converting back to QASYMM8 </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">max</td><td>(Optional) Max value used to saturate up the output result before converting back to QASYMM8, Along with <code>min</code>, this value can be used to implement "rectified linear unit" activation functions </td></tr> |
| </table> |
| </dd> |
| </dl> |
| |
| <p>Referenced by <a class="el" href="validation_2_c_l_2_g_e_m_m_lowp_8cpp_source.xhtml#l00181">arm_compute::test::validation::DATA_TEST_CASE()</a>.</p> |
| |
| </div> |
| </div> |
| <a class="anchor" id="ae91454a1d9774df968cdd3694b366ddf"></a> |
| <div class="memitem"> |
| <div class="memproto"> |
| <table class="mlabels"> |
| <tr> |
| <td class="mlabels-left"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">static <a class="el" href="classarm__compute_1_1_status.xhtml">Status</a> validate </td> |
| <td>(</td> |
| <td class="paramtype">const <a class="el" href="classarm__compute_1_1_i_tensor_info.xhtml">ITensorInfo</a> * </td> |
| <td class="paramname"><em>input</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">const <a class="el" href="classarm__compute_1_1_i_tensor_info.xhtml">ITensorInfo</a> * </td> |
| <td class="paramname"><em>bias</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">const <a class="el" href="classarm__compute_1_1_i_tensor_info.xhtml">ITensorInfo</a> * </td> |
| <td class="paramname"><em>output</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">int </td> |
| <td class="paramname"><em>min</em> = <code>0</code>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">int </td> |
| <td class="paramname"><em>max</em> = <code>0</code> </td> |
| </tr> |
| <tr> |
| <td></td> |
| <td>)</td> |
| <td></td><td></td> |
| </tr> |
| </table> |
| </td> |
| <td class="mlabels-right"> |
| <span class="mlabels"><span class="mlabel">static</span></span> </td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Static function to check if given info will lead to a valid configuration of <a class="el" href="classarm__compute_1_1_c_l_g_e_m_m_lowp_quantize_down_int32_to_uint8_scale_by_fixed_point.xhtml">CLGEMMLowpQuantizeDownInt32ToUint8ScaleByFixedPoint</a>. </p> |
| <dl class="params"><dt>Parameters</dt><dd> |
| <table class="params"> |
| <tr><td class="paramdir">[in]</td><td class="paramname">input</td><td>Input tensor. It is the output of <a class="el" href="classarm__compute_1_1_c_l_g_e_m_m_lowp_matrix_multiply_core.xhtml">CLGEMMLowpMatrixMultiplyCore</a> function. Data type supported: S32 </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">bias</td><td>Biases tensor. Only shared biases supported and it can be a nullptr if the addition of biases is not required. Biases are 1D tensor with dimensions [OFM]. Data type supported: Same as <code>input</code>. </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">output</td><td>Output tensor. Data type supported: Data type supported: QASYMM8 </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">min</td><td>(Optional) Min value used to saturate down the output result before converting back to QASYMM8 </td></tr> |
| <tr><td class="paramdir">[in]</td><td class="paramname">max</td><td>(Optional) Max value used to saturate up the output result before converting back to QASYMM8, Along with <code>min</code>, this value can be used to implement "rectified linear unit" activation functions</td></tr> |
| </table> |
| </dd> |
| </dl> |
| <dl class="section return"><dt>Returns</dt><dd>a status </dd></dl> |
| |
| </div> |
| </div> |
| <hr/>The documentation for this class was generated from the following file:<ul> |
| <li>arm_compute/runtime/CL/functions/<a class="el" href="_c_l_g_e_m_m_lowp_output_stage_8h_source.xhtml">CLGEMMLowpOutputStage.h</a></li> |
| </ul> |
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