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<a href="cuda_8h.htm">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*******************************************************</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * Copyright (c) 2014, ArrayFire</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * All rights reserved.</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> *</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * This file is distributed under 3-clause BSD license.</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * The complete license agreement can be obtained at:</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * http://arrayfire.com/licenses/BSD-3-Clause</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> ********************************************************/</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span> </div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#pragma once</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include <<a class="code" href="defines_8h.htm">af/defines.h</a>></span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include <<a class="code" href="exception_8h.htm">af/exception.h</a>></span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#ifdef __NVCC__</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include <<a class="code" href="cuda_8h.htm">cuda.h</a>></span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include <cuda_runtime.h></span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include <cublas_v2.h></span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#ifdef AF_DEFINE_CUDA_TYPES</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="keyword">typedef</span> <span class="keyword">struct </span>CUstream_st *cudaStream_t;</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="comment">/*Enum for default math mode/tensor operation*/</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="keyword">typedef</span> <span class="keyword">enum</span> {</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> CUBLAS_DEFAULT_MATH = 0,</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> CUBLAS_TENSOR_OP_MATH = 1</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span>} cublasMath_t;</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> </div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="preprocessor">#if AF_API_VERSION >= 31</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"><a class="line" href="group__cuda__mat.htm#ga8323b850f80afe9878b099f647b0a7e5"> 50</a></span><a class="code hl_define" href="defines_8h.htm#ab23e67549eba2cfbaf0eb5f88f947e48">AFAPI</a> <a class="code hl_enumeration" href="defines_8h.htm#a82b94dc53bbd100a0e8ca9dd356aaf4f">af_err</a> <a class="code hl_function" href="group__cuda__mat.htm#ga8323b850f80afe9878b099f647b0a7e5">afcu_get_stream</a>(cudaStream_t* stream, <span class="keywordtype">int</span> <span class="keywordtype">id</span>);</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span><span class="preprocessor">#if AF_API_VERSION >= 31</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"><a class="line" href="group__cuda__mat.htm#gaf38af1cbbf4be710cc8cbd95d20b24c4"> 63</a></span><a class="code hl_define" href="defines_8h.htm#ab23e67549eba2cfbaf0eb5f88f947e48">AFAPI</a> <a class="code hl_enumeration" href="defines_8h.htm#a82b94dc53bbd100a0e8ca9dd356aaf4f">af_err</a> <a class="code hl_function" href="group__cuda__mat.htm#gaf38af1cbbf4be710cc8cbd95d20b24c4">afcu_get_native_id</a>(<span class="keywordtype">int</span>* nativeid, <span class="keywordtype">int</span> <span class="keywordtype">id</span>);</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> </div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span><span class="preprocessor">#if AF_API_VERSION >= 32</span></div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"><a class="line" href="group__cuda__mat.htm#ga966f4c6880e90ce91d9599c90c0db378"> 75</a></span><a class="code hl_define" href="defines_8h.htm#ab23e67549eba2cfbaf0eb5f88f947e48">AFAPI</a> <a class="code hl_enumeration" href="defines_8h.htm#a82b94dc53bbd100a0e8ca9dd356aaf4f">af_err</a> <a class="code hl_function" href="group__cuda__mat.htm#ga966f4c6880e90ce91d9599c90c0db378">afcu_set_native_id</a>(<span class="keywordtype">int</span> nativeid);</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> </div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span><span class="preprocessor">#if AF_API_VERSION >= 37</span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"><a class="line" href="group__cuda__mat.htm#gac23ea38f0bff77a0e12555f27f47aa4f"> 89</a></span><a class="code hl_define" href="defines_8h.htm#ab23e67549eba2cfbaf0eb5f88f947e48">AFAPI</a> <a class="code hl_enumeration" href="defines_8h.htm#a82b94dc53bbd100a0e8ca9dd356aaf4f">af_err</a> <a class="code hl_function" href="group__cuda__mat.htm#gac23ea38f0bff77a0e12555f27f47aa4f">afcu_cublasSetMathMode</a>(cublasMath_t mode);</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> </div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span><span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span>}</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> </div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span><span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"><a class="line" href="namespaceafcu.htm"> 98</a></span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceafcu.htm">afcu</a></div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span>{</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> </div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span><span class="preprocessor">#if AF_API_VERSION >= 31</span></div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"><a class="line" href="group__cuda__mat.htm#ga441d85c6b692f2cc251db38539463857"> 110</a></span><span class="keyword">static</span> <span class="keyword">inline</span> cudaStream_t <a class="code hl_function" href="group__cuda__mat.htm#ga441d85c6b692f2cc251db38539463857">getStream</a>(<span class="keywordtype">int</span> <span class="keywordtype">id</span>)</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span>{</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> cudaStream_t retVal;</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <a class="code hl_enumeration" href="defines_8h.htm#a82b94dc53bbd100a0e8ca9dd356aaf4f">af_err</a> err = <a class="code hl_function" href="group__cuda__mat.htm#ga8323b850f80afe9878b099f647b0a7e5">afcu_get_stream</a>(&retVal, <span class="keywordtype">id</span>);</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="keywordflow">if</span> (err!=<a class="code hl_enumvalue" href="defines_8h.htm#a82b94dc53bbd100a0e8ca9dd356aaf4fa2e56d1f9585788fed8fbe3a321bddd76">AF_SUCCESS</a>)</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="keywordflow">throw</span> <a class="code hl_class" href="classaf_1_1exception.htm">af::exception</a>(<span class="stringliteral">"Failed to get CUDA stream from ArrayFire"</span>);</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="keywordflow">return</span> retVal;</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span>}</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> </div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span><span class="preprocessor">#if AF_API_VERSION >= 31</span></div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"><a class="line" href="group__cuda__mat.htm#ga79fdaa34904bc7fba15f962ba82c76fc"> 129</a></span><span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code hl_function" href="group__cuda__mat.htm#ga79fdaa34904bc7fba15f962ba82c76fc">getNativeId</a>(<span class="keywordtype">int</span> <span class="keywordtype">id</span>)</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span>{</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordtype">int</span> retVal;</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <a class="code hl_enumeration" href="defines_8h.htm#a82b94dc53bbd100a0e8ca9dd356aaf4f">af_err</a> err = <a class="code hl_function" href="group__cuda__mat.htm#gaf38af1cbbf4be710cc8cbd95d20b24c4">afcu_get_native_id</a>(&retVal, <span class="keywordtype">id</span>);</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="keywordflow">if</span> (err!=<a class="code hl_enumvalue" href="defines_8h.htm#a82b94dc53bbd100a0e8ca9dd356aaf4fa2e56d1f9585788fed8fbe3a321bddd76">AF_SUCCESS</a>)</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keywordflow">throw</span> <a class="code hl_class" href="classaf_1_1exception.htm">af::exception</a>(<span class="stringliteral">"Failed to get CUDA device native id from ArrayFire"</span>);</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> <span class="keywordflow">return</span> retVal;</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span>}</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> </div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span><span class="preprocessor">#if AF_API_VERSION >= 32</span></div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"><a class="line" href="group__cuda__mat.htm#ga9def381dcf53190315f27a478a165b8b"> 147</a></span><span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code hl_function" href="group__cuda__mat.htm#ga9def381dcf53190315f27a478a165b8b">setNativeId</a>(<span class="keywordtype">int</span> nativeId)</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span>{</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <a class="code hl_enumeration" href="defines_8h.htm#a82b94dc53bbd100a0e8ca9dd356aaf4f">af_err</a> err = <a class="code hl_function" href="group__cuda__mat.htm#ga966f4c6880e90ce91d9599c90c0db378">afcu_set_native_id</a>(nativeId);</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="keywordflow">if</span> (err!=<a class="code hl_enumvalue" href="defines_8h.htm#a82b94dc53bbd100a0e8ca9dd356aaf4fa2e56d1f9585788fed8fbe3a321bddd76">AF_SUCCESS</a>)</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> <span class="keywordflow">throw</span> <a class="code hl_class" href="classaf_1_1exception.htm">af::exception</a>(<span class="stringliteral">"Failed to change active CUDA device to the device with given native id"</span>);</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span>}</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> </div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span>}</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span><span class="preprocessor">#endif</span></div>
<div class="ttc" id="aclassaf_1_1exception_htm"><div class="ttname"><a href="classaf_1_1exception.htm">af::exception</a></div><div class="ttdoc">An ArrayFire exception class.</div><div class="ttdef"><b>Definition:</b> <a href="exception_8h_source.htm#l00021">exception.h:22</a></div></div>
<div class="ttc" id="acuda_8h_htm"><div class="ttname"><a href="cuda_8h.htm">cuda.h</a></div></div>
<div class="ttc" id="adefines_8h_htm"><div class="ttname"><a href="defines_8h.htm">defines.h</a></div></div>
<div class="ttc" id="adefines_8h_htm_a82b94dc53bbd100a0e8ca9dd356aaf4f"><div class="ttname"><a href="defines_8h.htm#a82b94dc53bbd100a0e8ca9dd356aaf4f">af_err</a></div><div class="ttdeci">af_err</div><div class="ttdef"><b>Definition:</b> <a href="defines_8h_source.htm#l00071">defines.h:71</a></div></div>
<div class="ttc" id="adefines_8h_htm_a82b94dc53bbd100a0e8ca9dd356aaf4fa2e56d1f9585788fed8fbe3a321bddd76"><div class="ttname"><a href="defines_8h.htm#a82b94dc53bbd100a0e8ca9dd356aaf4fa2e56d1f9585788fed8fbe3a321bddd76">AF_SUCCESS</a></div><div class="ttdeci">@ AF_SUCCESS</div><div class="ttdoc">The function returned successfully.</div><div class="ttdef"><b>Definition:</b> <a href="defines_8h_source.htm#l00082">defines.h:75</a></div></div>
<div class="ttc" id="adefines_8h_htm_ab23e67549eba2cfbaf0eb5f88f947e48"><div class="ttname"><a href="defines_8h.htm#ab23e67549eba2cfbaf0eb5f88f947e48">AFAPI</a></div><div class="ttdeci">#define AFAPI</div><div class="ttdef"><b>Definition:</b> <a href="defines_8h_source.htm#l00038">defines.h:38</a></div></div>
<div class="ttc" id="aexception_8h_htm"><div class="ttname"><a href="exception_8h.htm">exception.h</a></div></div>
<div class="ttc" id="agroup__cuda__mat_htm_ga441d85c6b692f2cc251db38539463857"><div class="ttname"><a href="group__cuda__mat.htm#ga441d85c6b692f2cc251db38539463857">afcu::getStream</a></div><div class="ttdeci">static cudaStream_t getStream(int id)</div><div class="ttdoc">Get the stream for the CUDA device with id in ArrayFire context.</div><div class="ttdef"><b>Definition:</b> <a href="cuda_8h_source.htm#l00110">cuda.h:110</a></div></div>
<div class="ttc" id="agroup__cuda__mat_htm_ga79fdaa34904bc7fba15f962ba82c76fc"><div class="ttname"><a href="group__cuda__mat.htm#ga79fdaa34904bc7fba15f962ba82c76fc">afcu::getNativeId</a></div><div class="ttdeci">static int getNativeId(int id)</div><div class="ttdoc">Get the native device id of the CUDA device with id in ArrayFire context.</div><div class="ttdef"><b>Definition:</b> <a href="cuda_8h_source.htm#l00129">cuda.h:129</a></div></div>
<div class="ttc" id="agroup__cuda__mat_htm_ga8323b850f80afe9878b099f647b0a7e5"><div class="ttname"><a href="group__cuda__mat.htm#ga8323b850f80afe9878b099f647b0a7e5">afcu_get_stream</a></div><div class="ttdeci">AFAPI af_err afcu_get_stream(cudaStream_t *stream, int id)</div><div class="ttdoc">This file contain functions that apply only to the CUDA backend.</div></div>
<div class="ttc" id="agroup__cuda__mat_htm_ga966f4c6880e90ce91d9599c90c0db378"><div class="ttname"><a href="group__cuda__mat.htm#ga966f4c6880e90ce91d9599c90c0db378">afcu_set_native_id</a></div><div class="ttdeci">AFAPI af_err afcu_set_native_id(int nativeid)</div><div class="ttdoc">Set the CUDA device with given native id as the active device for ArrayFire.</div></div>
<div class="ttc" id="agroup__cuda__mat_htm_ga9def381dcf53190315f27a478a165b8b"><div class="ttname"><a href="group__cuda__mat.htm#ga9def381dcf53190315f27a478a165b8b">afcu::setNativeId</a></div><div class="ttdeci">static void setNativeId(int nativeId)</div><div class="ttdoc">Set the CUDA device with given native id as the active device for ArrayFire.</div><div class="ttdef"><b>Definition:</b> <a href="cuda_8h_source.htm#l00147">cuda.h:147</a></div></div>
<div class="ttc" id="agroup__cuda__mat_htm_gac23ea38f0bff77a0e12555f27f47aa4f"><div class="ttname"><a href="group__cuda__mat.htm#gac23ea38f0bff77a0e12555f27f47aa4f">afcu_cublasSetMathMode</a></div><div class="ttdeci">AFAPI af_err afcu_cublasSetMathMode(cublasMath_t mode)</div><div class="ttdoc">Sets the cuBLAS math mode for the internal handle.</div></div>
<div class="ttc" id="agroup__cuda__mat_htm_gaf38af1cbbf4be710cc8cbd95d20b24c4"><div class="ttname"><a href="group__cuda__mat.htm#gaf38af1cbbf4be710cc8cbd95d20b24c4">afcu_get_native_id</a></div><div class="ttdeci">AFAPI af_err afcu_get_native_id(int *nativeid, int id)</div><div class="ttdoc">Get the native device id of the CUDA device with id in ArrayFire context.</div></div>
<div class="ttc" id="anamespaceafcu_htm"><div class="ttname"><a href="namespaceafcu.htm">afcu</a></div><div class="ttdef"><b>Definition:</b> <a href="cuda_8h_source.htm#l00098">cuda.h:99</a></div></div>
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