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<div class="title">context.hpp</div>  </div>
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<a href="context_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#ifndef VIENNACL_CONTEXT_HPP_</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="preprocessor">#define VIENNACL_CONTEXT_HPP_</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;</div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">/* =========================================================================</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">   Copyright (c) 2010-2016, Institute for Microelectronics,</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">                            Institute for Analysis and Scientific Computing,</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">                            TU Wien.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">   Portions of this software are copyright by UChicago Argonne, LLC.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">                            -----------------</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">                  ViennaCL - The Vienna Computing Library</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">                            -----------------</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">   Project Head:    Karl Rupp                   rupp@iue.tuwien.ac.at</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">   (A list of authors and contributors can be found in the manual)</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment">   License:         MIT (X11), see file LICENSE in the base directory</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment">============================================================================= */</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#include &lt;stddef.h&gt;</span></div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#include &lt;assert.h&gt;</span></div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="forwards_8h.html">viennacl/forwards.h</a>&quot;</span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="ocl_2forwards_8h.html">viennacl/ocl/forwards.h</a>&quot;</span></div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="mem__handle_8hpp.html">viennacl/backend/mem_handle.hpp</a>&quot;</span></div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="keyword">namespace </span>viennacl</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;{</div>
<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="classviennacl_1_1context.html">   39</a></span>&#160;<span class="keyword">class </span><a class="code" href="classviennacl_1_1context.html">context</a></div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;{</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="classviennacl_1_1context.html#a8f95db066e453ccd52aa9305fbd71243">   42</a></span>&#160;  <a class="code" href="classviennacl_1_1context.html#a8f95db066e453ccd52aa9305fbd71243">context</a>() : mem_type_(viennacl::backend::<a class="code" href="namespaceviennacl_1_1backend.html#a0238c5401fc7e05c3641b1ad5e872458">default_memory_type</a>())</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;  {</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="preprocessor">#ifdef VIENNACL_WITH_OPENCL</span></div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    <span class="keywordflow">if</span> (mem_type_ == <a class="code" href="namespaceviennacl.html#a00b40450b6b2fd87aad3527d9b2084b8adb37af613f34867568e4f6cf720c68b1">OPENCL_MEMORY</a>)</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;      ocl_context_ptr_ = &amp;<a class="code" href="namespaceviennacl_1_1ocl.html#a16fc917445ce2010e7b16fbc968771b7">viennacl::ocl::current_context</a>();</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;      ocl_context_ptr_ = NULL;</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;  }</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;</div>
<div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="classviennacl_1_1context.html#a88b51d155aee396ef6d8d8a96bd7e90a">   52</a></span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classviennacl_1_1context.html#a88b51d155aee396ef6d8d8a96bd7e90a">context</a>(<a class="code" href="namespaceviennacl.html#a00b40450b6b2fd87aad3527d9b2084b8">viennacl::memory_types</a> mtype) : mem_type_(mtype)</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;  {</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    <span class="keywordflow">if</span> (mem_type_ == <a class="code" href="namespaceviennacl.html#a00b40450b6b2fd87aad3527d9b2084b8a020ede27e1975479bce748e0e4ea3c7f">MEMORY_NOT_INITIALIZED</a>)</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;      mem_type_ = <a class="code" href="namespaceviennacl_1_1backend.html#a0238c5401fc7e05c3641b1ad5e872458">viennacl::backend::default_memory_type</a>();</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="preprocessor">#ifdef VIENNACL_WITH_OPENCL</span></div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    <span class="keywordflow">if</span> (mem_type_ == <a class="code" href="namespaceviennacl.html#a00b40450b6b2fd87aad3527d9b2084b8adb37af613f34867568e4f6cf720c68b1">OPENCL_MEMORY</a>)</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;      ocl_context_ptr_ = &amp;<a class="code" href="namespaceviennacl_1_1ocl.html#a16fc917445ce2010e7b16fbc968771b7">viennacl::ocl::current_context</a>();</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;      ocl_context_ptr_ = NULL;</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;  }</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="preprocessor">#ifdef VIENNACL_WITH_OPENCL</span></div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;  <a class="code" href="classviennacl_1_1context.html#a8f95db066e453ccd52aa9305fbd71243">context</a>(<a class="code" href="classviennacl_1_1ocl_1_1context.html">viennacl::ocl::context</a> <span class="keyword">const</span> &amp; ctx) : mem_type_(<a class="code" href="namespaceviennacl.html#a00b40450b6b2fd87aad3527d9b2084b8adb37af613f34867568e4f6cf720c68b1">OPENCL_MEMORY</a>), ocl_context_ptr_(&amp;ctx) {}</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;  <a class="code" href="classviennacl_1_1ocl_1_1context.html">viennacl::ocl::context</a> <span class="keyword">const</span> &amp; opencl_context()<span class="keyword"> const</span></div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="keyword">  </span>{</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    assert(mem_type_ == <a class="code" href="namespaceviennacl.html#a00b40450b6b2fd87aad3527d9b2084b8adb37af613f34867568e4f6cf720c68b1">OPENCL_MEMORY</a> &amp;&amp; <span class="keywordtype">bool</span>(<span class="stringliteral">&quot;Context type is not OpenCL&quot;</span>));</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    <span class="keywordflow">return</span> *ocl_context_ptr_;</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;  }</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;  <span class="comment">// TODO: Add CUDA and OpenMP contexts</span></div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;</div>
<div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="classviennacl_1_1context.html#aadf575d49ed144e8fa4707cdad69c349">   76</a></span>&#160;  <a class="code" href="namespaceviennacl.html#a00b40450b6b2fd87aad3527d9b2084b8">viennacl::memory_types</a>  <a class="code" href="classviennacl_1_1context.html#aadf575d49ed144e8fa4707cdad69c349">memory_type</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> mem_type_; }</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;  <a class="code" href="namespaceviennacl.html#a00b40450b6b2fd87aad3527d9b2084b8">viennacl::memory_types</a>   mem_type_;</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;<span class="preprocessor">#ifdef VIENNACL_WITH_OPENCL</span></div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;  <a class="code" href="classviennacl_1_1ocl_1_1context.html">viennacl::ocl::context</a> <span class="keyword">const</span> * ocl_context_ptr_;</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;};</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;}</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="ttc" id="ocl_2forwards_8h_html"><div class="ttname"><a href="ocl_2forwards_8h.html">forwards.h</a></div><div class="ttdoc">This file provides the forward declarations for the OpenCL layer of ViennaCL. </div></div>
<div class="ttc" id="classviennacl_1_1context_html_a88b51d155aee396ef6d8d8a96bd7e90a"><div class="ttname"><a href="classviennacl_1_1context.html#a88b51d155aee396ef6d8d8a96bd7e90a">viennacl::context::context</a></div><div class="ttdeci">context(viennacl::memory_types mtype)</div><div class="ttdef"><b>Definition:</b> <a href="context_8hpp_source.html#l00052">context.hpp:52</a></div></div>
<div class="ttc" id="classviennacl_1_1ocl_1_1context_html"><div class="ttname"><a href="classviennacl_1_1ocl_1_1context.html">viennacl::ocl::context</a></div><div class="ttdoc">Manages an OpenCL context and provides the respective convenience functions for creating buffers...</div><div class="ttdef"><b>Definition:</b> <a href="ocl_2context_8hpp_source.html#l00055">context.hpp:55</a></div></div>
<div class="ttc" id="namespaceviennacl_1_1ocl_html_a16fc917445ce2010e7b16fbc968771b7"><div class="ttname"><a href="namespaceviennacl_1_1ocl.html#a16fc917445ce2010e7b16fbc968771b7">viennacl::ocl::current_context</a></div><div class="ttdeci">viennacl::ocl::context &amp; current_context()</div><div class="ttdoc">Convenience function for returning the current context. </div><div class="ttdef"><b>Definition:</b> <a href="backend_8hpp_source.html#l00213">backend.hpp:213</a></div></div>
<div class="ttc" id="namespaceviennacl_html_a00b40450b6b2fd87aad3527d9b2084b8adb37af613f34867568e4f6cf720c68b1"><div class="ttname"><a href="namespaceviennacl.html#a00b40450b6b2fd87aad3527d9b2084b8adb37af613f34867568e4f6cf720c68b1">viennacl::OPENCL_MEMORY</a></div><div class="ttdef"><b>Definition:</b> <a href="forwards_8h_source.html#l00349">forwards.h:349</a></div></div>
<div class="ttc" id="forwards_8h_html"><div class="ttname"><a href="forwards_8h.html">forwards.h</a></div><div class="ttdoc">This file provides the forward declarations for the main types used within ViennaCL. </div></div>
<div class="ttc" id="classviennacl_1_1context_html"><div class="ttname"><a href="classviennacl_1_1context.html">viennacl::context</a></div><div class="ttdoc">Represents a generic &#39;context&#39; similar to an OpenCL context, but is backend-agnostic and thus also su...</div><div class="ttdef"><b>Definition:</b> <a href="context_8hpp_source.html#l00039">context.hpp:39</a></div></div>
<div class="ttc" id="namespaceviennacl_html_a00b40450b6b2fd87aad3527d9b2084b8a020ede27e1975479bce748e0e4ea3c7f"><div class="ttname"><a href="namespaceviennacl.html#a00b40450b6b2fd87aad3527d9b2084b8a020ede27e1975479bce748e0e4ea3c7f">viennacl::MEMORY_NOT_INITIALIZED</a></div><div class="ttdef"><b>Definition:</b> <a href="forwards_8h_source.html#l00347">forwards.h:347</a></div></div>
<div class="ttc" id="mem__handle_8hpp_html"><div class="ttname"><a href="mem__handle_8hpp.html">mem_handle.hpp</a></div><div class="ttdoc">Implements the multi-memory-domain handle. </div></div>
<div class="ttc" id="namespaceviennacl_1_1backend_html_a0238c5401fc7e05c3641b1ad5e872458"><div class="ttname"><a href="namespaceviennacl_1_1backend.html#a0238c5401fc7e05c3641b1ad5e872458">viennacl::backend::default_memory_type</a></div><div class="ttdeci">memory_types default_memory_type()</div><div class="ttdoc">Returns the default memory type for the given configuration. </div><div class="ttdef"><b>Definition:</b> <a href="mem__handle_8hpp_source.html#l00073">mem_handle.hpp:73</a></div></div>
<div class="ttc" id="classviennacl_1_1context_html_aadf575d49ed144e8fa4707cdad69c349"><div class="ttname"><a href="classviennacl_1_1context.html#aadf575d49ed144e8fa4707cdad69c349">viennacl::context::memory_type</a></div><div class="ttdeci">viennacl::memory_types memory_type() const </div><div class="ttdef"><b>Definition:</b> <a href="context_8hpp_source.html#l00076">context.hpp:76</a></div></div>
<div class="ttc" id="classviennacl_1_1context_html_a8f95db066e453ccd52aa9305fbd71243"><div class="ttname"><a href="classviennacl_1_1context.html#a8f95db066e453ccd52aa9305fbd71243">viennacl::context::context</a></div><div class="ttdeci">context()</div><div class="ttdef"><b>Definition:</b> <a href="context_8hpp_source.html#l00042">context.hpp:42</a></div></div>
<div class="ttc" id="namespaceviennacl_html_a00b40450b6b2fd87aad3527d9b2084b8"><div class="ttname"><a href="namespaceviennacl.html#a00b40450b6b2fd87aad3527d9b2084b8">viennacl::memory_types</a></div><div class="ttdeci">memory_types</div><div class="ttdef"><b>Definition:</b> <a href="forwards_8h_source.html#l00345">forwards.h:345</a></div></div>
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