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<section id="updates-in-2021-1">
<h1>Updates in 2021.1<a class="headerlink" href="#updates-in-2021-1" title="Permalink to this headline"></a></h1>
<p><strong>General</strong></p>
<ul class="simple">
<li><p>Added support for the CUDA toolkit 11.3.</p></li>
<li><p>Added support for the <a class="reference external" href="index.html#library-support-optix">OptiX 7 API</a>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">GpuArch</span></code> enumeration values used for filtering in section files were renamed from architecture names to compute capabilities.</p></li>
<li><p>NVTX states can now be accessed via the <a class="reference external" href="../NvRulesAPI/index.html#abstract">NvRules API</a>.</p></li>
<li><p>Added a rule for the <em>Occupancy</em> section.</p></li>
</ul>
<p><strong>NVIDIA Nsight Compute</strong></p>
<ul class="simple">
<li><p>Added support for new CUDA asynchronous allocator attributes in the <em>Memory Pools</em> resources view.</p></li>
<li><p>Added a topology chart and link properties table in the NVLink section.</p></li>
<li><p>The selected metric column is scrolled into view on the <em>Source</em> page when a new metric is selected.</p></li>
<li><p>Users can choose the <em>Source</em> heatmap color scale in the <em>Options</em> dialog.</p></li>
</ul>
<p><strong>NVIDIA Nsight Compute CLI</strong></p>
<ul class="simple">
<li><p>Added file-based <a class="reference external" href="../ProfilingGuide/index.html#application-replay">application replay</a> as the new default application replay mode. File-based replay uses a temporary file for keeping replay data, instead of allocating them in memory. This keeps the required memory footprint close to constant, independent of the number of profiled kernels. Users can switch between buffer modes using the <code class="docutils literal notranslate"><span class="pre">--app-replay-buffer</span></code> option.</p></li>
<li><p>CLI output now shows NVTX color and message information.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">--kernel-regex</span></code> and <code class="docutils literal notranslate"><span class="pre">--kernel-regex-base></span></code> options are deprecated and replaced by <code class="docutils literal notranslate"><span class="pre">--kernel-name</span></code> and <code class="docutils literal notranslate"><span class="pre">--kernel-regex-base</span></code>, respectively.</p></li>
<li><p>All options which support regex need to provide <code class="docutils literal notranslate"><span class="pre">regex:</span></code> as a prefix before an argument to match per the regex, e.g <code class="docutils literal notranslate"><span class="pre"><option></span> <span class="pre"><regex:expression></span></code></p></li>
</ul>
<p><strong>Resolved Issues</strong></p>
<ul class="simple">
<li><p>Fixed that baselines were not updated properly on the <em>Comments</em> page.</p></li>
<li><p>Fixed that NVTX ranges named using their payloads can be used in <a class="reference external" href="../NsightComputeCli/index.html#nvtx-filtering">NVTX filtering</a> expressions.</p></li>
<li><p>Fixed crashes in MacOSX hosts when terminating the target application.</p></li>
<li><p>The NVLINK(<code class="docutils literal notranslate"><span class="pre">nvl*</span></code>) metrics are now added back.</p></li>
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