arm_compute v17.09
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+<div class="title">gemv.cl File Reference</div> </div>
+</div><!--header-->
+<div class="contents">
+<div class="textblock"><code>#include "<a class="el" href="helpers_8h_source.xhtml">helpers.h</a>"</code><br/>
+</div>
+<p><a href="gemv_8cl_source.xhtml">Go to the source code of this file.</a></p>
+<table class="memberdecls">
+<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
+Functions</h2></td></tr>
+<tr class="memitem:a40788c7e9d25ce124c68ffd5dad44656"><td class="memItemLeft" align="right" valign="top">__kernel void </td><td class="memItemRight" valign="bottom"><a class="el" href="gemv_8cl.xhtml#a40788c7e9d25ce124c68ffd5dad44656">gemm_mv</a> (__global uchar *src_ptr, uint src_stride_x, uint src_step_x, uint src_stride_y, uint src_step_y, uint src_stride_z, uint src_step_z, uint src_offset_first_element_in_bytes, __global uchar *weights_ptr, uint weights_stride_x, uint weights_step_x, uint weights_stride_y, uint weights_step_y, uint weights_offset_first_element_in_bytes, __global uchar *dst_ptr, uint dst_stride_x, uint dst_step_x, uint dst_offset_first_element_in_bytes)</td></tr>
+<tr class="memdesc:a40788c7e9d25ce124c68ffd5dad44656"><td class="mdescLeft"> </td><td class="mdescRight">This kernel applies dot product to each plane on the input tensor and the corrispective column of the reshaped weight tensor. <a href="#a40788c7e9d25ce124c68ffd5dad44656">More...</a><br/></td></tr>
+<tr class="separator:a40788c7e9d25ce124c68ffd5dad44656"><td class="memSeparator" colspan="2"> </td></tr>
+</table>
+<h2 class="groupheader">Function Documentation</h2>
+<a class="anchor" id="a40788c7e9d25ce124c68ffd5dad44656"></a>
+<div class="memitem">
+<div class="memproto">
+ <table class="memname">
+ <tr>
+ <td class="memname">__kernel void gemm_mv </td>
+ <td>(</td>
+ <td class="paramtype">__global uchar * </td>
+ <td class="paramname"><em>src_ptr</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">uint </td>
+ <td class="paramname"><em>src_stride_x</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">uint </td>
+ <td class="paramname"><em>src_step_x</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">uint </td>
+ <td class="paramname"><em>src_stride_y</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">uint </td>
+ <td class="paramname"><em>src_step_y</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">uint </td>
+ <td class="paramname"><em>src_stride_z</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">uint </td>
+ <td class="paramname"><em>src_step_z</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">uint </td>
+ <td class="paramname"><em>src_offset_first_element_in_bytes</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">__global uchar * </td>
+ <td class="paramname"><em>weights_ptr</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">uint </td>
+ <td class="paramname"><em>weights_stride_x</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">uint </td>
+ <td class="paramname"><em>weights_step_x</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">uint </td>
+ <td class="paramname"><em>weights_stride_y</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">uint </td>
+ <td class="paramname"><em>weights_step_y</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">uint </td>
+ <td class="paramname"><em>weights_offset_first_element_in_bytes</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">__global uchar * </td>
+ <td class="paramname"><em>dst_ptr</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">uint </td>
+ <td class="paramname"><em>dst_stride_x</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">uint </td>
+ <td class="paramname"><em>dst_step_x</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">uint </td>
+ <td class="paramname"><em>dst_offset_first_element_in_bytes</em> </td>
+ </tr>
+ <tr>
+ <td></td>
+ <td>)</td>
+ <td></td><td></td>
+ </tr>
+ </table>
+</div><div class="memdoc">
+
+<p>This kernel applies dot product to each plane on the input tensor and the corrispective column of the reshaped weight tensor. </p>
+<dl class="section note"><dt>Note</dt><dd>Datatype and source width and height should be given as a preprocessor argument using -DDATA_TYPE=type, -DSRC_WIDTH=width and -DSRC_HEIGHT=height. e.g. -DDATA_TYPE=short</dd></dl>
+<dl class="params"><dt>Parameters</dt><dd>
+ <table class="params">
+ <tr><td class="paramdir">[in]</td><td class="paramname">src_ptr</td><td>Pointer to the source tensor. Supported data types: F16/F32 </td></tr>
+ <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_x</td><td>Stride of the source tensor in X dimension (in bytes) </td></tr>
+ <tr><td class="paramdir">[in]</td><td class="paramname">src_step_x</td><td>src_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
+ <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_y</td><td>Stride of the source tensor in Y dimension (in bytes) </td></tr>
+ <tr><td class="paramdir">[in]</td><td class="paramname">src_step_y</td><td>src_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
+ <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_z</td><td>Stride of the source tensor in Z dimension (in bytes) </td></tr>
+ <tr><td class="paramdir">[in]</td><td class="paramname">src_step_z</td><td>src_stride_z * number of elements along Y processed per workitem(in bytes) </td></tr>
+ <tr><td class="paramdir">[in]</td><td class="paramname">src_offset_first_element_in_bytes</td><td>The offset of the first element in the source tensor </td></tr>
+ <tr><td class="paramdir">[out]</td><td class="paramname">weights_ptr</td><td>Pointer to the weights tensor. Same as <code>src_ptr</code> </td></tr>
+ <tr><td class="paramdir">[in]</td><td class="paramname">weights_stride_x</td><td>Stride of the weights tensor in X dimension (in bytes) </td></tr>
+ <tr><td class="paramdir">[in]</td><td class="paramname">weights_step_x</td><td>weights_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
+ <tr><td class="paramdir">[in]</td><td class="paramname">weights_stride_y</td><td>Stride of the weights tensor in Y dimension (in bytes) </td></tr>
+ <tr><td class="paramdir">[in]</td><td class="paramname">weights_step_y</td><td>weights_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
+ <tr><td class="paramdir">[in]</td><td class="paramname">weights_offset_first_element_in_bytes</td><td>The offset of the first element in the weights tensor </td></tr>
+ <tr><td class="paramdir">[out]</td><td class="paramname">dst_ptr</td><td>Pointer to the destination tensor. Same as <code>src_ptr</code> </td></tr>
+ <tr><td class="paramdir">[in]</td><td class="paramname">dst_stride_x</td><td>Stride of the destination tensor in X dimension (in bytes) </td></tr>
+ <tr><td class="paramdir">[in]</td><td class="paramname">dst_step_x</td><td>dst_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
+ <tr><td class="paramdir">[in]</td><td class="paramname">dst_offset_first_element_in_bytes</td><td>The offset of the first element in the destination tensor </td></tr>
+ </table>
+ </dd>
+</dl>
+
+<p>Definition at line <a class="el" href="gemv_8cl_source.xhtml#l00049">49</a> of file <a class="el" href="gemv_8cl_source.xhtml">gemv.cl</a>.</p>
+
+<p>References <a class="el" href="helpers_8h_source.xhtml#l00108">CONVERT_TO_TENSOR3D_STRUCT</a>, <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, <a class="el" href="helpers_8h_source.xhtml#l00292">offset()</a>, <a class="el" href="helpers_8h_source.xhtml#l00142">Tensor3D::ptr</a>, and <a class="el" href="fixed__point_8h_source.xhtml#l00093">VEC_DATA_TYPE</a>.</p>
+<div class="fragment"><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> {</div>
+<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <a class="code" href="struct_tensor3_d.xhtml">Tensor3D</a> src = <a class="code" href="helpers_8h.xhtml#a31c8c760f08fb1a331b16b7c204321dc">CONVERT_TO_TENSOR3D_STRUCT</a>(src);</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="keywordtype">int</span> y = get_global_id(1) * 4;</div>
+<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordtype">int</span> z = get_global_id(2);</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>  __global uchar *current_weights = weights_ptr + weights_offset_first_element_in_bytes + z * weights_stride_y;</div>
+<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  __global uchar *input_ptr = src.<a class="code" href="struct_tensor3_d.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>;</div>
+<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
+<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> acc0 = (<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>)0;</div>
+<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> acc1 = (<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>)0;</div>
+<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> acc2 = (<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>)0;</div>
+<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> acc3 = (<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>)0;</div>
+<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div>
+<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="comment">// This kernel handle 4 rows in per thread so that it can reuse the weights</span></div>
+<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = 0; i < SRC_WIDTH; i += 4)</div>
+<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  {</div>
+<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 4)</div>
+<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  weights = vload4(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)(current_weights + i * weights_stride_x));</div>
+<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div>
+<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  int4 <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a> = (int4)i * (int4)src_stride_x + (int4)(0, 1, 2, 3) * (int4)src_stride_y;</div>
+<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div>
+<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 4)</div>
+<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  tmp0 = vload4(0, (__global DATA_TYPE *)(input_ptr + <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>.s0));</div>
+<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(DATA_TYPE, 4)</div>
+<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  tmp1 = vload4(0, (__global DATA_TYPE *)(input_ptr + <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>.s1));</div>
+<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(DATA_TYPE, 4)</div>
+<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  tmp2 = vload4(0, (__global DATA_TYPE *)(input_ptr + <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>.s2));</div>
+<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(DATA_TYPE, 4)</div>
+<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  tmp3 = vload4(0, (__global DATA_TYPE *)(input_ptr + <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>.s3));</div>
+<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div>
+<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  acc0 += dot(weights, tmp0);</div>
+<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  acc1 += dot(weights, tmp1);</div>
+<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  acc2 += dot(weights, tmp2);</div>
+<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  acc3 += dot(weights, tmp3);</div>
+<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  }</div>
+<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div>
+<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  __global uchar *output_ptr = dst_ptr + dst_offset_first_element_in_bytes + (y + z * SRC_HEIGHT) * dst_stride_x;</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>  <span class="keywordtype">int</span> rows_left = SRC_HEIGHT - (y + 4);</div>
+<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div>
+<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">// This if check is used to handle the last few rows when it can't be divided by the four</span></div>
+<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  if(rows_left >= 0)</div>
+<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  {</div>
+<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(DATA_TYPE, 4)</div>
+<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  out = (<a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(DATA_TYPE, 4))(acc0, acc1, acc2, acc3);</div>
+<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  vstore4(out, 0, (__global DATA_TYPE *)output_ptr);</div>
+<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  }</div>
+<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  else</div>
+<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  {</div>
+<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">switch</span>(rows_left)</div>
+<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  {</div>
+<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">case</span> -1: <span class="comment">// three rows left; one is padding</span></div>
+<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  *((__global DATA_TYPE *)(output_ptr + 2 * dst_stride_x)) = acc2;</div>
+<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">case</span> -2: <span class="comment">// two rows left; two are padding</span></div>
+<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  *((__global DATA_TYPE *)(output_ptr + 1 * dst_stride_x)) = acc1;</div>
+<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">case</span> -3: <span class="comment">// one row left; three are padding</span></div>
+<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  *((__global DATA_TYPE *)(output_ptr + 0 * dst_stride_x)) = acc0;</div>
+<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">break</span>;</div>
+<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  }</div>
+<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  }</div>
+<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> }</div>
+<div class="ttc" id="helpers_8h_xhtml_a31c8c760f08fb1a331b16b7c204321dc"><div class="ttname"><a href="helpers_8h.xhtml#a31c8c760f08fb1a331b16b7c204321dc">CONVERT_TO_TENSOR3D_STRUCT</a></div><div class="ttdeci">#define CONVERT_TO_TENSOR3D_STRUCT(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00108">helpers.h:108</a></div></div>
+<div class="ttc" id="convolution3x3_8cl_xhtml_afb8c72ce35c4a1f4a2588d6573e54aa1"><div class="ttname"><a href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a></div><div class="ttdeci">#define DATA_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="convolution3x3_8cl_source.xhtml#l00027">convolution3x3.cl:27</a></div></div>
+<div class="ttc" id="struct_tensor3_d_xhtml"><div class="ttname"><a href="struct_tensor3_d.xhtml">Tensor3D</a></div><div class="ttdoc">Structure to hold 3D tensor information. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00140">helpers.h:140</a></div></div>
+<div class="ttc" id="helpers_8h_xhtml_a009469e4d9b8fce3b6d5e97d2077827d"><div class="ttname"><a href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a></div><div class="ttdeci">__global uchar * offset(const Image *img, int x, int y)</div><div class="ttdoc">Get the pointer position of a Image. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00292">helpers.h:292</a></div></div>
+<div class="ttc" id="fixed__point_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a></div><div class="ttdeci">#define VEC_DATA_TYPE(type, size)</div><div class="ttdef"><b>Definition:</b> <a href="fixed__point_8h_source.xhtml#l00093">fixed_point.h:93</a></div></div>
+<div class="ttc" id="struct_tensor3_d_xhtml_acf52c23cbd7424606c10a606524e3e32"><div class="ttname"><a href="struct_tensor3_d.xhtml#acf52c23cbd7424606c10a606524e3e32">Tensor3D::ptr</a></div><div class="ttdeci">__global uchar * ptr</div><div class="ttdoc">Pointer to the starting postion of the buffer. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00142">helpers.h:142</a></div></div>
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