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class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/OpenCL" title="OpenCL – bulgariera" lang="bg" hreflang="bg" data-title="OpenCL" data-language-autonym="Български" data-language-local-name="bulgariera" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/OpenCL" title="OpenCL – katalana" lang="ca" hreflang="ca" data-title="OpenCL" data-language-autonym="Català" data-language-local-name="katalana" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/OpenCL" title="OpenCL – txekiera" lang="cs" hreflang="cs" data-title="OpenCL" data-language-autonym="Čeština" data-language-local-name="txekiera" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/OpenCL" title="OpenCL – alemana" lang="de" hreflang="de" data-title="OpenCL" data-language-autonym="Deutsch" data-language-local-name="alemana" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/OpenCL" title="OpenCL – ingelesa" lang="en" hreflang="en" data-title="OpenCL" data-language-autonym="English" data-language-local-name="ingelesa" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/OpenCL" title="OpenCL – gaztelania" lang="es" hreflang="es" data-title="OpenCL" data-language-autonym="Español" data-language-local-name="gaztelania" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/OpenCL" title="OpenCL – estoniera" lang="et" hreflang="et" data-title="OpenCL" data-language-autonym="Eesti" data-language-local-name="estoniera" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%A7%D9%88%D9%BE%D9%86%E2%80%8C%D8%B3%DB%8C%E2%80%8C%D8%A7%D9%84" title="اوپن‌سی‌ال – persiera" lang="fa" hreflang="fa" data-title="اوپن‌سی‌ال" data-language-autonym="فارسی" data-language-local-name="persiera" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/OpenCL" title="OpenCL – finlandiera" lang="fi" hreflang="fi" data-title="OpenCL" data-language-autonym="Suomi" data-language-local-name="finlandiera" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/OpenCL" title="OpenCL – frantsesa" lang="fr" hreflang="fr" data-title="OpenCL" data-language-autonym="Français" data-language-local-name="frantsesa" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/OpenCL" title="OpenCL – italiera" lang="it" hreflang="it" data-title="OpenCL" data-language-autonym="Italiano" data-language-local-name="italiera" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/OpenCL" title="OpenCL – japoniera" lang="ja" hreflang="ja" data-title="OpenCL" data-language-autonym="日本語" data-language-local-name="japoniera" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/OpenCL" title="OpenCL – koreera" lang="ko" hreflang="ko" data-title="OpenCL" data-language-autonym="한국어" data-language-local-name="koreera" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/OpenCL" title="OpenCL – nederlandera" lang="nl" hreflang="nl" data-title="OpenCL" data-language-autonym="Nederlands" data-language-local-name="nederlandera" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/OpenCL" title="OpenCL – bokmål (norvegiera)" lang="nb" hreflang="nb" data-title="OpenCL" data-language-autonym="Norsk bokmål" data-language-local-name="bokmål (norvegiera)" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/OpenCL" title="OpenCL – poloniera" lang="pl" hreflang="pl" data-title="OpenCL" data-language-autonym="Polski" data-language-local-name="poloniera" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/OpenCL" title="OpenCL – portugesa" lang="pt" hreflang="pt" data-title="OpenCL" data-language-autonym="Português" data-language-local-name="portugesa" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/OpenCL" title="OpenCL – errusiera" lang="ru" hreflang="ru" data-title="OpenCL" data-language-autonym="Русский" data-language-local-name="errusiera" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/OpenCL" title="OpenCL – eslovakiera" lang="sk" hreflang="sk" data-title="OpenCL" data-language-autonym="Slovenčina" data-language-local-name="eslovakiera" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/OpenCL" title="OpenCL – serbiera" lang="sr" hreflang="sr" data-title="OpenCL" data-language-autonym="Српски / srpski" data-language-local-name="serbiera" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/OpenCL" title="OpenCL – suediera" lang="sv" hreflang="sv" data-title="OpenCL" data-language-autonym="Svenska" data-language-local-name="suediera" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%82%E0%B8%AD%E0%B9%80%E0%B8%9E%E0%B8%99%E0%B8%8B%E0%B8%B5%E0%B9%81%E0%B8%AD%E0%B8%A5" title="โอเพนซีแอล – thailandiera" lang="th" hreflang="th" data-title="โอเพนซีแอล" data-language-autonym="ไทย" data-language-local-name="thailandiera" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/OpenCL" title="OpenCL – turkiera" lang="tr" hreflang="tr" data-title="OpenCL" data-language-autonym="Türkçe" data-language-local-name="turkiera" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/OpenCL" title="OpenCL – ukrainera" lang="uk" hreflang="uk" data-title="OpenCL" data-language-autonym="Українська" data-language-local-name="ukrainera" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/OpenCL" title="OpenCL – txinera" lang="zh" hreflang="zh" data-title="OpenCL" data-language-autonym="中文" data-language-local-name="txinera" 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dir="ltr"><div class="rellink noprint"> <dl><dd><i>Ez nahasi <a href="/w/index.php?title=OpenGL&action=edit&redlink=1" class="new" title="OpenGL (sortu gabe)">OpenGLrekin</a></i>.</dd></dl></div> <p><b>OpenCL</b> (<b>Open Computing Language</b>, <a href="/wiki/Euskara" title="Euskara">euskaraz</a> <i>Konputazio lengoaia irekia</i>) <a href="/wiki/Application_Programming_Interface" class="mw-redirect" title="Application Programming Interface">aplikazioen programazio interfaz</a> batez eta <a href="/wiki/Programazio-lengoaia" title="Programazio-lengoaia">programazio-lengoaia</a> batez osatua dago. Elkarrekin <a href="/wiki/Prozesatzeko_unitate_zentral" title="Prozesatzeko unitate zentral">prozesatzeko unitate zentraletan</a> zein <a href="/w/index.php?title=Prozesamendu_grafikoko_unitate&action=edit&redlink=1" class="new" title="Prozesamendu grafikoko unitate (sortu gabe)">prozesamendu grafikoko unitateetan</a> exekuta daitezkeen lan eta datu mailako paralelismodun <a href="/wiki/Aplikazio_informatiko" title="Aplikazio informatiko">aplikazioak</a> sortzea ahalbidetzen dute. Lengoaia <a href="/wiki/C_(programazio_lengoaia)" title="C (programazio lengoaia)">C99an</a> oinarritua dago, funtzionaltasun batzuk ezabatuz eta operazio bektorialekin hedatuz. </p><p><a href="/wiki/Apple_Inc." title="Apple Inc.">Applek</a> sortu zuen jatorrizko espezifikazioa eta <a href="/w/index.php?title=Khronos_Taldea&action=edit&redlink=1" class="new" title="Khronos Taldea (sortu gabe)">Khronos Taldeari</a> proposatu zion estandar ireki eta eskubidez aske bat bihur zezan. <a href="/wiki/2008" title="2008">2008ko</a> <a href="/wiki/Ekainaren_16" title="Ekainaren 16">ekainak 16an</a> Khronosek <i>Compute Working Group</i> sortu zuen estandarizazio prozesua aurrera eramateko. </p><p>OpenCL <a href="/wiki/Mac_OS_X_v10.6" title="Mac OS X v10.6">Mac OS X v10.6</a> ("Snow Leopard")en zati da. AMDk OpenCL babestea erabaki du Close to Metal izeneko bere antzinako APIaren ordez. </p> <div class="mw-heading mw-heading2"><h2 id="Adibidea">Adibidea</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=OpenCL&veaction=edit&section=1" title="Aldatu atal hau: «Adibidea»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=OpenCL&action=edit&section=1" title="Edit section's source code: Adibidea"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Adibide honek <a href="/w/index.php?title=Fourierren_transformatu_azkar&action=edit&redlink=1" class="new" title="Fourierren transformatu azkar (sortu gabe)">Fourierren transformatu azkar</a> bat kalkulatzen du. API deritzenak honakoak dira: </p> <div class="mw-highlight mw-highlight-lang-c mw-content-ltr" dir="ltr"><pre><span></span><span class="c1">// create a compute context with GPU device</span> <span class="n">context</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">clCreateContextFromType</span><span class="p">(</span><span class="n">CL_DEVICE_TYPE_GPU</span><span class="p">);</span> <span class="c1">// create a work-queue</span> <span class="n">queue</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">clCreateWorkQueue</span><span class="p">(</span><span class="n">context</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">);</span> <span class="c1">// allocate the buffer memory objects</span> <span class="n">memobjs</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">clCreateBuffer</span><span class="p">(</span><span class="n">context</span><span class="p">,</span><span class="w"> </span><span class="n">CL_MEM_READ_ONLY</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">CL_MEM_COPY_HOST_PTR</span><span class="p">,</span><span class="w"> </span><span class="k">sizeof</span><span class="p">(</span><span class="kt">float</span><span class="p">)</span><span class="o">*</span><span class="mi">2</span><span class="o">*</span><span class="n">num_entries</span><span class="p">,</span><span class="w"> </span><span class="n">srcA</span><span class="p">);</span> <span class="n">memobjs</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">clCreateBuffer</span><span class="p">(</span><span class="n">context</span><span class="p">,</span><span class="w"> </span><span class="n">CL_MEM_READ_WRITE</span><span class="p">,</span><span class="w"> </span><span class="k">sizeof</span><span class="p">(</span><span class="kt">float</span><span class="p">)</span><span class="o">*</span><span class="mi">2</span><span class="o">*</span><span class="n">num_entries</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">);</span> <span class="c1">// create the compute program</span> <span class="n">program</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">clCreateProgramFromSource</span><span class="p">(</span><span class="n">context</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="o">&</span><span class="n">fft1D_1024_kernel_src</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">);</span> <span class="c1">// build the compute program executable</span> <span class="n">clBuildProgramExecutable</span><span class="p">(</span><span class="n">program</span><span class="p">,</span><span class="w"> </span><span class="nb">false</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">);</span> <span class="c1">// create the compute kernel</span> <span class="n">kernel</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">clCreateKernel</span><span class="p">(</span><span class="n">program</span><span class="p">,</span><span class="w"> </span><span class="err">“</span><span class="n">fft1D_1024</span><span class="err">”</span><span class="p">);</span> <span class="c1">// create N-D range object with work-item dimensions</span> <span class="n">global_work_size</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">n</span><span class="p">;</span> <span class="n">local_work_size</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">64</span><span class="p">;</span> <span class="n">range</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">clCreateNDRangeContainer</span><span class="p">(</span><span class="n">context</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="n">global_work_size</span><span class="p">,</span><span class="w"> </span><span class="n">local_work_size</span><span class="p">);</span> <span class="c1">// set the args values</span> <span class="n">clSetKernelArg</span><span class="p">(</span><span class="n">kernel</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="p">(</span><span class="kt">void</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="o">&</span><span class="n">memobjs</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span><span class="w"> </span><span class="k">sizeof</span><span class="p">(</span><span class="n">cl_mem</span><span class="p">),</span><span class="w"> </span><span class="nb">NULL</span><span class="p">);</span> <span class="n">clSetKernelArg</span><span class="p">(</span><span class="n">kernel</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="p">(</span><span class="kt">void</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="o">&</span><span class="n">memobjs</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span><span class="w"> </span><span class="k">sizeof</span><span class="p">(</span><span class="n">cl_mem</span><span class="p">),</span><span class="w"> </span><span class="nb">NULL</span><span class="p">);</span> <span class="n">clSetKernelArg</span><span class="p">(</span><span class="n">kernel</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">,</span><span class="w"> </span><span class="k">sizeof</span><span class="p">(</span><span class="kt">float</span><span class="p">)</span><span class="o">*</span><span class="p">(</span><span class="n">local_work_size</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">+</span><span class="mi">1</span><span class="p">)</span><span class="o">*</span><span class="mi">16</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">);</span> <span class="n">clSetKernelArg</span><span class="p">(</span><span class="n">kernel</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">,</span><span class="w"> </span><span class="k">sizeof</span><span class="p">(</span><span class="kt">float</span><span class="p">)</span><span class="o">*</span><span class="p">(</span><span class="n">local_work_size</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">+</span><span class="mi">1</span><span class="p">)</span><span class="o">*</span><span class="mi">16</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">);</span> <span class="w"> </span><span class="c1">// execute kernel</span> <span class="n">clExecuteKernel</span><span class="p">(</span><span class="n">queue</span><span class="p">,</span><span class="w"> </span><span class="n">kernel</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">,</span><span class="w"> </span><span class="n">range</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">);</span> </pre></div> <p>Kalkulua bera honako hau da: </p> <div class="mw-highlight mw-highlight-lang-c mw-content-ltr" dir="ltr"><pre><span></span><span class="c1">// This kernel computes FFT of length 1024. The 1024 length FFT is decomposed into</span> <span class="c1">// calls to a radix 16 function, another radix 16 function and then a radix 4 function</span> <span class="n">__kernel</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">fft1D_1024</span><span class="w"> </span><span class="p">(</span><span class="n">__global</span><span class="w"> </span><span class="n">float2</span><span class="w"> </span><span class="o">*</span><span class="n">in</span><span class="p">,</span><span class="w"> </span><span class="n">__global</span><span class="w"> </span><span class="n">float2</span><span class="w"> </span><span class="o">*</span><span class="n">out</span><span class="p">,</span> <span class="w"> </span><span class="n">__local</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="n">sMemx</span><span class="p">,</span><span class="w"> </span><span class="n">__local</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="n">sMemy</span><span class="p">)</span><span class="w"> </span><span class="p">{</span><span class="w"> </span> <span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">tid</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">get_local_id</span><span class="p">(</span><span class="mi">0</span><span class="p">);</span><span class="w"> </span> <span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">blockIdx</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">get_group_id</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="mi">1024</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">tid</span><span class="p">;</span><span class="w"> </span> <span class="w"> </span><span class="n">float2</span><span class="w"> </span><span class="n">data</span><span class="p">[</span><span class="mi">16</span><span class="p">];</span><span class="w"> </span> <span class="w"> </span><span class="c1">// starting index of data to/from global memory </span> <span class="w"> </span><span class="n">in</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">in</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">blockIdx</span><span class="p">;</span><span class="w"> </span><span class="n">out</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">out</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">blockIdx</span><span class="p">;</span><span class="w"> </span> <span class="w"> </span><span class="n">globalLoads</span><span class="p">(</span><span class="n">data</span><span class="p">,</span><span class="w"> </span><span class="n">in</span><span class="p">,</span><span class="w"> </span><span class="mi">64</span><span class="p">);</span><span class="w"> </span><span class="c1">// coalesced global reads </span> <span class="w"> </span><span class="n">fftRadix16Pass</span><span class="p">(</span><span class="n">data</span><span class="p">);</span><span class="w"> </span><span class="c1">// in-place radix-16 pass </span> <span class="w"> </span><span class="n">twiddleFactorMul</span><span class="p">(</span><span class="n">data</span><span class="p">,</span><span class="w"> </span><span class="n">tid</span><span class="p">,</span><span class="w"> </span><span class="mi">1024</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">);</span><span class="w"> </span> <span class="w"> </span><span class="c1">// local shuffle using local memory </span> <span class="w"> </span><span class="n">localShuffle</span><span class="p">(</span><span class="n">data</span><span class="p">,</span><span class="w"> </span><span class="n">sMemx</span><span class="p">,</span><span class="w"> </span><span class="n">sMemy</span><span class="p">,</span><span class="w"> </span><span class="n">tid</span><span class="p">,</span><span class="w"> </span><span class="p">(((</span><span class="n">tid</span><span class="w"> </span><span class="o">&</span><span class="w"> </span><span class="mi">15</span><span class="p">)</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="mi">65</span><span class="p">)</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="p">(</span><span class="n">tid</span><span class="w"> </span><span class="o">>></span><span class="w"> </span><span class="mi">4</span><span class="p">)));</span><span class="w"> </span> <span class="w"> </span><span class="n">fftRadix16Pass</span><span class="p">(</span><span class="n">data</span><span class="p">);</span><span class="w"> </span><span class="c1">// in-place radix-16 pass </span> <span class="w"> </span><span class="n">twiddleFactorMul</span><span class="p">(</span><span class="n">data</span><span class="p">,</span><span class="w"> </span><span class="n">tid</span><span class="p">,</span><span class="w"> </span><span class="mi">64</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="p">);</span><span class="w"> </span><span class="c1">// twiddle factor multiplication </span> <span class="w"> </span><span class="n">localShuffle</span><span class="p">(</span><span class="n">data</span><span class="p">,</span><span class="w"> </span><span class="n">sMemx</span><span class="p">,</span><span class="w"> </span><span class="n">sMemy</span><span class="p">,</span><span class="w"> </span><span class="n">tid</span><span class="p">,</span><span class="w"> </span><span class="p">(((</span><span class="n">tid</span><span class="w"> </span><span class="o">>></span><span class="w"> </span><span class="mi">4</span><span class="p">)</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="mi">64</span><span class="p">)</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="p">(</span><span class="n">tid</span><span class="w"> </span><span class="o">&</span><span class="w"> </span><span class="mi">15</span><span class="p">)));</span><span class="w"> </span> <span class="w"> </span><span class="c1">// four radix-4 function calls </span> <span class="w"> </span><span class="n">fftRadix4Pass</span><span class="p">(</span><span class="n">data</span><span class="p">);</span><span class="w"> </span><span class="n">fftRadix4Pass</span><span class="p">(</span><span class="n">data</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">4</span><span class="p">);</span><span class="w"> </span> <span class="w"> </span><span class="n">fftRadix4Pass</span><span class="p">(</span><span class="n">data</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">8</span><span class="p">);</span><span class="w"> </span><span class="n">fftRadix4Pass</span><span class="p">(</span><span class="n">data</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">12</span><span class="p">);</span><span class="w"> </span> <span class="w"> </span><span class="c1">// coalesced global writes </span> <span class="w"> </span><span class="n">globalStores</span><span class="p">(</span><span class="n">data</span><span class="p">,</span><span class="w"> </span><span class="n">out</span><span class="p">,</span><span class="w"> </span><span class="mi">64</span><span class="p">);</span><span class="w"> </span> <span class="p">}</span> </pre></div> <div class="mw-heading mw-heading2"><h2 id="Ikus,_gainera"><span id="Ikus.2C_gainera"></span>Ikus, gainera</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=OpenCL&veaction=edit&section=2" title="Aldatu atal hau: «Ikus, gainera»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=OpenCL&action=edit&section=2" title="Edit section's source code: Ikus, gainera"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/w/index.php?title=GPGPU&action=edit&redlink=1" class="new" title="GPGPU (sortu gabe)">GPGPU</a></li> <li><a href="/wiki/CUDA" title="CUDA">CUDA</a></li> <li><a href="/w/index.php?title=Close_to_Metal&action=edit&redlink=1" class="new" title="Close to Metal (sortu gabe)">Close to Metal</a></li> <li><a href="/w/index.php?title=BrookGPU&action=edit&redlink=1" class="new" title="BrookGPU (sortu gabe)">BrookGPU</a></li> <li><a href="/w/index.php?title=Lib_SH&action=edit&redlink=1" class="new" title="Lib SH (sortu gabe)">Lib SH</a></li> <li><a href="/w/index.php?title=Larrabee_(GPU)&action=edit&redlink=1" class="new" title="Larrabee (GPU) (sortu gabe)">Larrabee (GPU)</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Kanpo_estekak">Kanpo estekak</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=OpenCL&veaction=edit&section=3" title="Aldatu atal hau: «Kanpo estekak»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=OpenCL&action=edit&section=3" title="Edit section's source code: Kanpo estekak"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span style="cursor: help; font-size: 90%; font-family: bold; color: gray" title="Ingelesez dago aipu honen iturburua"><b>(Ingelesez)</b></span><a rel="nofollow" class="external text" href="http://www.khronos.org/opencl">OpenCLren webgune ofiziala</a></li></ul> <div style="clear:both;"></div><style data-mw-deduplicate="TemplateStyles:r7786466">.mw-parser-output .mw-authority-control{margin-top:1.5em}.mw-parser-output .mw-authority-control .navbox hr:last-child{display:none}.mw-parser-output .mw-authority-control .navbox+.mw-mf-linked-projects{display:none}.mw-parser-output .mw-authority-control,.mw-parser-output .mw-mf-linked-projects{border:1px solid #a2a9b1;font-size:88%}.mw-parser-output .mw-authority-control .mw-mf-linked-projects ul li{margin-bottom:0}</style><div class="mw-authority-control"><div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r9236167">.mw-parser-output .navbox{box-sizing:border-box;border:1px solid #a2a9b1;width:100%;clear:both;font-size:88%;text-align:center;padding:1px}.mw-parser-output .navbox .navbox{margin-top:0}.mw-parser-output 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.navbox+.navbox-styles+.navbox{margin-top:-1px}.mw-parser-output .navbox-inner,.mw-parser-output .navbox-subgroup{width:100%}.mw-parser-output .navbox-group,.mw-parser-output .navbox-title,.mw-parser-output .navbox-abovebelow{padding:0.25em 1em;line-height:1.5em;text-align:center}.mw-parser-output .navbox-group{white-space:nowrap;text-align:right}.mw-parser-output .navbox,.mw-parser-output .navbox-subgroup{background-color:#fdfdfd}.mw-parser-output .navbox-list{line-height:1.5em;border-color:#fdfdfd}.mw-parser-output .navbox-list-with-group{text-align:left;border-left-width:2px;border-left-style:solid}.mw-parser-output tr+tr>.navbox-abovebelow,.mw-parser-output tr+tr>.navbox-group,.mw-parser-output tr+tr>.navbox-image,.mw-parser-output tr+tr>.navbox-list{border-top:2px solid #fdfdfd}.mw-parser-output .navbox-title{background-color:#ccf}.mw-parser-output .navbox-abovebelow,.mw-parser-output .navbox-group,.mw-parser-output .navbox-subgroup .navbox-title{background-color:#ddf}.mw-parser-output .navbox-subgroup .navbox-group,.mw-parser-output .navbox-subgroup .navbox-abovebelow{background-color:#e6e6ff}.mw-parser-output .navbox-even{background-color:#f7f7f7}.mw-parser-output .navbox-odd{background-color:transparent}.mw-parser-output .navbox .hlist td dl,.mw-parser-output .navbox .hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}</style></div><div role="navigation" class="navbox" aria-labelledby="Autoritate_kontrola" style="width: inherit;padding:3px"><table class="nowraplinks hlist navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th id="Autoritate_kontrola" scope="row" class="navbox-group" style="width:1%;width: 12%; text-align:center;"><a href="/wiki/Laguntza:Autoritate_kontrola" title="Laguntza:Autoritate kontrola">Autoritate kontrola</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><b>Wikimedia proiektuak</b></li> <li><span style="white-space:nowrap;"><span typeof="mw:File"><a href="/wiki/Wikidata" title="Wikidata"><img alt="Wd" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/20px-Wikidata-logo.svg.png" decoding="async" width="20" height="11" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/30px-Wikidata-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/40px-Wikidata-logo.svg.png 2x" data-file-width="1050" data-file-height="590" /></a></span> Datuak:</span> <span class="uid"><a href="https://www.wikidata.org/wiki/Q681360" class="extiw" title="wikidata:Q681360">Q681360</a></span></li> <li><span style="white-space:nowrap;"><span typeof="mw:File"><a href="/wiki/Wikimedia_Commons" title="Commonscat"><img alt="Commonscat" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/15px-Commons-logo.svg.png" decoding="async" width="15" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/23px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> Multimedia:</span> <span class="uid"><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:OpenCL">OpenCL</a></span> / <span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Special:MediaSearch?type=image&search=%22Q681360%22">Q681360</a></span></span></li></ul> <hr /> <ul><li><b>Identifikadoreak</b></li> <li><span style="white-space:nowrap;"><a href="/wiki/Library_of_Congress_Control_Number" title="Library of Congress Control Number">LCCN</a>:</span> <span class="uid"><a rel="nofollow" class="external text" href="https://id.loc.gov/authorities/sh2011002885">sh2011002885</a></span></li></ul> </div></td></tr></tbody></table></div><div class="mw-mf-linked-projects hlist"> <ul><li><span style="white-space:nowrap;"><span typeof="mw:File"><a href="/wiki/Wikidata" title="Wikidata"><img alt="Wd" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/20px-Wikidata-logo.svg.png" decoding="async" width="20" height="11" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/30px-Wikidata-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/40px-Wikidata-logo.svg.png 2x" data-file-width="1050" data-file-height="590" /></a></span> Datuak:</span> <span class="uid"><a href="https://www.wikidata.org/wiki/Q681360" class="extiw" title="wikidata:Q681360">Q681360</a></span></li> <li><span style="white-space:nowrap;"><span typeof="mw:File"><a href="/wiki/Wikimedia_Commons" title="Commonscat"><img alt="Commonscat" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/15px-Commons-logo.svg.png" decoding="async" width="15" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/23px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> Multimedia:</span> <span class="uid"><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:OpenCL">OpenCL</a></span> / <span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Special:MediaSearch?type=image&search=%22Q681360%22">Q681360</a></span></span></li></ul> </div></div>    </div><script>(RLQ=window.RLQ||[]).push(function(){mw.log.warn("Gadget \"ErrefAurrebista\" was not loaded. 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