chore: import upstream snapshot with attribution

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<h1>Cache for Intermediate Activations</h1>
<p>During inference the model outputs token by token. We use this simple cache to store key&#x27;s and value&#x27;s attention layers, so that we don&#x27;t have to recompute them for previous tokens.</p>
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<div class="highlight"><pre><span class="lineno">15</span><span></span><span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">Any</span></pre></div>
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<h2>Cache</h2>
<p>This maintains a key-value cache and queues push values and pop them in the same order. The queues are useful since we have multiple attention layers.</p>
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<div class='code'>
<div class="highlight"><pre><span class="lineno">18</span><span class="k">class</span> <span class="nc">Cache</span><span class="p">:</span></pre></div>
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<div class='code'>
<div class="highlight"><pre><span class="lineno">26</span> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="lineno">27</span> <span class="bp">self</span><span class="o">.</span><span class="n">_cache</span> <span class="o">=</span> <span class="p">{}</span></pre></div>
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<h3>Clear cache</h3>
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<div class='code'>
<div class="highlight"><pre><span class="lineno">29</span> <span class="k">def</span> <span class="nf">clear_all</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
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<div class="highlight"><pre><span class="lineno">33</span> <span class="bp">self</span><span class="o">.</span><span class="n">_cache</span> <span class="o">=</span> <span class="p">{}</span></pre></div>
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<h3>Push a value to a queue</h3>
<ul><li><code class="highlight"><span></span><span class="n">name</span></code>
is the name of the queue </li>
<li><code class="highlight"><span></span><span class="n">value</span></code>
is the value to be pushed</li></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">35</span> <span class="k">def</span> <span class="nf">push</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">value</span><span class="p">:</span> <span class="n">Any</span><span class="p">):</span></pre></div>
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<p>Create an empty queue if it&#x27;s not present </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">44</span> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_cache</span><span class="p">:</span>
<span class="lineno">45</span> <span class="bp">self</span><span class="o">.</span><span class="n">_cache</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span></pre></div>
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<p>Push to the queue </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">48</span> <span class="bp">self</span><span class="o">.</span><span class="n">_cache</span><span class="p">[</span><span class="n">name</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">value</span><span class="p">)</span></pre></div>
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<h3>Return the size of the queue</h3>
<ul><li><code class="highlight"><span></span><span class="n">name</span></code>
is the name of the queue </li>
<p><em>Returns</em> size of the queue if exists else None</p></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">50</span> <span class="k">def</span> <span class="nf">q_size</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span></pre></div>
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<div class="highlight"><pre><span class="lineno">58</span> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_cache</span><span class="p">:</span>
<span class="lineno">59</span> <span class="k">return</span> <span class="kc">None</span>
<span class="lineno">60</span>
<span class="lineno">61</span> <span class="k">if</span> <span class="nb">type</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_cache</span><span class="p">[</span><span class="n">name</span><span class="p">])</span> <span class="o">!=</span> <span class="nb">list</span><span class="p">:</span>
<span class="lineno">62</span> <span class="k">return</span> <span class="kc">None</span>
<span class="lineno">63</span>
<span class="lineno">64</span> <span class="k">return</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_cache</span><span class="p">[</span><span class="n">name</span><span class="p">])</span></pre></div>
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<h3>Pop from a queue</h3>
<ul><li><code class="highlight"><span></span><span class="n">name</span></code>
is the name of the queue </li>
<p><em>Returns</em> the value</p></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">66</span> <span class="k">def</span> <span class="nf">pop</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span></pre></div>
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<div class="highlight"><pre><span class="lineno">73</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_cache</span><span class="p">[</span><span class="n">name</span><span class="p">]</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span></pre></div>
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<div class='docs doc-strings'>
<div class='section-link'>
<a href='#section-12'>#</a>
</div>
<h3>Cache a value</h3>
<ul><li><code class="highlight"><span></span><span class="n">key</span></code>
is the name of the value to be cached </li>
<li><code class="highlight"><span></span><span class="n">value</span></code>
is the value</li></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">75</span> <span class="k">def</span> <span class="nf">set</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">value</span><span class="p">:</span> <span class="n">Any</span><span class="p">):</span></pre></div>
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<div class="highlight"><pre><span class="lineno">82</span> <span class="bp">self</span><span class="o">.</span><span class="n">_cache</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="o">=</span> <span class="n">value</span></pre></div>
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<h3>Retrieve a value from cache</h3>
<ul><li><code class="highlight"><span></span><span class="n">key</span></code>
is the name used when caching </li>
<li><code class="highlight"><span></span><span class="n">default</span></code>
is the default value if the cache is empty </li>
<p><em>Returns</em> the cached value</p></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">84</span> <span class="k">def</span> <span class="nf">get</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">default</span><span class="p">:</span> <span class="n">Any</span> <span class="o">=</span> <span class="kc">None</span><span class="p">):</span></pre></div>
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<a href='#section-15'>#</a>
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<div class='code'>
<div class="highlight"><pre><span class="lineno">92</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_cache</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">default</span><span class="p">)</span></pre></div>
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<div class='docs doc-strings'>
<div class='section-link'>
<a href='#section-16'>#</a>
</div>
<h3>Clear a cache value</h3>
<ul><li><code class="highlight"><span></span><span class="n">key</span></code>
is the name used when caching</li></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">94</span> <span class="k">def</span> <span class="nf">clear</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span></pre></div>
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<a href='#section-17'>#</a>
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<div class='code'>
<div class="highlight"><pre><span class="lineno">100</span> <span class="k">del</span> <span class="bp">self</span><span class="o">.</span><span class="n">_cache</span><span class="p">[</span><span class="n">key</span><span class="p">]</span></pre></div>
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<p>Singleton for cache </p>
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<div class='code'>
<div class="highlight"><pre><span class="lineno">104</span><span class="n">_INSTANCE</span> <span class="o">=</span> <span class="kc">None</span></pre></div>
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<h3>Get the cache instance</h3>
<ul><p><em>Returns</em> the cache instance</p></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">107</span><span class="k">def</span> <span class="nf">get_cache</span><span class="p">()</span> <span class="o">-&gt;</span> <span class="n">Cache</span><span class="p">:</span></pre></div>
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<div class="highlight"><pre><span class="lineno">113</span> <span class="k">global</span> <span class="n">_INSTANCE</span>
<span class="lineno">114</span>
<span class="lineno">115</span> <span class="k">if</span> <span class="n">_INSTANCE</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="lineno">116</span> <span class="n">_INSTANCE</span> <span class="o">=</span> <span class="n">Cache</span><span class="p">()</span>
<span class="lineno">117</span>
<span class="lineno">118</span> <span class="k">return</span> <span class="n">_INSTANCE</span></pre></div>
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<div class="highlight"><pre><span class="lineno">1</span><span></span><span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">List</span><span class="p">,</span> <span class="n">Dict</span>
<span class="lineno">2</span>
<span class="lineno">3</span><span class="kn">import</span> <span class="nn">torch</span>
<span class="lineno">4</span><span class="kn">from</span> <span class="nn">torch</span> <span class="kn">import</span> <span class="n">nn</span>
<span class="lineno">5</span>
<span class="lineno">6</span><span class="kn">from</span> <span class="nn">labml_nn.neox.model</span> <span class="kn">import</span> <span class="n">TransformerLayer</span><span class="p">,</span> <span class="n">NeoXModule</span></pre></div>
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<div class="highlight"><pre><span class="lineno">9</span><span class="k">class</span> <span class="nc">FineTuner</span><span class="p">:</span></pre></div>
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</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">10</span> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">layers</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="n">NeoXModule</span><span class="p">]):</span>
<span class="lineno">11</span> <span class="bp">self</span><span class="o">.</span><span class="n">layers</span> <span class="o">=</span> <span class="n">layers</span></pre></div>
</div>
</div>
<div class='section' id='section-3'>
<div class='docs'>
<div class='section-link'>
<a href='#section-3'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">13</span> <span class="k">def</span> <span class="nf">get_trainable_params</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">nn</span><span class="o">.</span><span class="n">Parameter</span><span class="p">]:</span>
<span class="lineno">14</span> <span class="n">params</span> <span class="o">=</span> <span class="p">{}</span>
<span class="lineno">15</span> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="n">layer</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">layers</span><span class="p">):</span>
<span class="lineno">16</span> <span class="n">params</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">get_layer_trainable_params</span><span class="p">(</span><span class="n">layer</span><span class="p">,</span> <span class="n">prefix</span><span class="o">=</span><span class="sa">f</span><span class="s1">&#39;layer_</span><span class="si">{</span><span class="n">i</span><span class="w"> </span><span class="si">:</span><span class="s1">02d</span><span class="si">}</span><span class="s1">&#39;</span><span class="p">))</span>
<span class="lineno">17</span>
<span class="lineno">18</span> <span class="k">return</span> <span class="n">params</span></pre></div>
</div>
</div>
<div class='section' id='section-4'>
<div class='docs'>
<div class='section-link'>
<a href='#section-4'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">20</span> <span class="k">def</span> <span class="nf">get_layer_trainable_params</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">layer</span><span class="p">:</span> <span class="n">NeoXModule</span><span class="p">,</span> <span class="n">prefix</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">nn</span><span class="o">.</span><span class="n">Parameter</span><span class="p">]:</span>
<span class="lineno">21</span> <span class="k">raise</span> <span class="ne">NotImplementedError</span></pre></div>
</div>
</div>
<div class='section' id='section-5'>
<div class='docs'>
<div class='section-link'>
<a href='#section-5'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">23</span> <span class="k">def</span> <span class="nf">set_trainable_params</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="lineno">24</span> <span class="k">for</span> <span class="n">layer</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">layers</span><span class="p">:</span></pre></div>
</div>
</div>
<div class='section' id='section-6'>
<div class='docs'>
<div class='section-link'>
<a href='#section-6'>#</a>
</div>
<p>Set <code class="highlight"><span></span><span class="n">requires_grad</span></code>
to <code class="highlight"><span></span><span class="kc">False</span></code>
for the entire layer. </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">26</span> <span class="n">layer</span><span class="o">.</span><span class="n">requires_grad_</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-7'>
<div class='docs'>
<div class='section-link'>
<a href='#section-7'>#</a>
</div>
<p> </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">28</span> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_trainable_params</span><span class="p">()</span><span class="o">.</span><span class="n">values</span><span class="p">():</span>
<span class="lineno">29</span> <span class="n">p</span><span class="o">.</span><span class="n">requires_grad_</span><span class="p">(</span><span class="kc">True</span><span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-8'>
<div class='docs'>
<div class='section-link'>
<a href='#section-8'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">31</span> <span class="k">def</span> <span class="nf">state_dict</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="lineno">32</span> <span class="k">return</span> <span class="p">{</span><span class="n">n</span><span class="p">:</span> <span class="n">p</span><span class="o">.</span><span class="n">data</span><span class="o">.</span><span class="n">cpu</span><span class="p">()</span> <span class="k">for</span> <span class="n">n</span><span class="p">,</span> <span class="n">p</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_trainable_params</span><span class="p">()</span><span class="o">.</span><span class="n">items</span><span class="p">()}</span></pre></div>
</div>
</div>
<div class='section' id='section-9'>
<div class='docs'>
<div class='section-link'>
<a href='#section-9'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">34</span> <span class="k">def</span> <span class="nf">load_state_dict</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">state_dict</span><span class="p">:</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">torch</span><span class="o">.</span><span class="n">Tensor</span><span class="p">]):</span>
<span class="lineno">35</span> <span class="n">params</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_trainable_params</span><span class="p">()</span>
<span class="lineno">36</span> <span class="k">for</span> <span class="n">n</span><span class="p">,</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">params</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="lineno">37</span> <span class="n">p</span><span class="o">.</span><span class="n">data</span><span class="p">[:]</span> <span class="o">=</span> <span class="n">state_dict</span><span class="p">[</span><span class="n">n</span><span class="p">]</span><span class="o">.</span><span class="n">to</span><span class="p">(</span><span class="n">p</span><span class="o">.</span><span class="n">data</span><span class="o">.</span><span class="n">device</span><span class="p">)</span>
<span class="lineno">38</span>
<span class="lineno">39</span> <span class="k">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="n">state_dict</span><span class="o">.</span><span class="n">keys</span><span class="p">():</span>
<span class="lineno">40</span> <span class="k">assert</span> <span class="n">n</span> <span class="ow">in</span> <span class="n">params</span><span class="p">,</span> <span class="n">n</span></pre></div>
</div>
</div>
<div class='section' id='section-10'>
<div class='docs'>
<div class='section-link'>
<a href='#section-10'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">43</span><span class="k">class</span> <span class="nc">FineTuneBiases</span><span class="p">(</span><span class="n">FineTuner</span><span class="p">):</span></pre></div>
</div>
</div>
<div class='section' id='section-11'>
<div class='docs'>
<div class='section-link'>
<a href='#section-11'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">44</span> <span class="k">def</span> <span class="nf">get_layer_trainable_params</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">layer</span><span class="p">:</span> <span class="n">NeoXModule</span><span class="p">,</span> <span class="n">prefix</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">nn</span><span class="o">.</span><span class="n">Parameter</span><span class="p">]:</span>
<span class="lineno">45</span> <span class="n">params</span> <span class="o">=</span> <span class="p">{}</span>
<span class="lineno">46</span>
<span class="lineno">47</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">layer</span><span class="p">,</span> <span class="n">TransformerLayer</span><span class="p">):</span></pre></div>
</div>
</div>
<div class='section' id='section-12'>
<div class='docs'>
<div class='section-link'>
<a href='#section-12'>#</a>
</div>
<p>No need to train the mlp bias because we are adding it with attention output </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">49</span> <span class="n">params</span><span class="p">[</span><span class="sa">f</span><span class="s1">&#39;</span><span class="si">{</span><span class="n">prefix</span><span class="si">}</span><span class="s1">.attention.output.bias&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">layer</span><span class="o">.</span><span class="n">attention</span><span class="o">.</span><span class="n">output</span><span class="o">.</span><span class="n">bias</span>
<span class="lineno">50</span> <span class="n">params</span><span class="p">[</span><span class="sa">f</span><span class="s1">&#39;</span><span class="si">{</span><span class="n">prefix</span><span class="si">}</span><span class="s1">.attention.qkv_lin.bias&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">layer</span><span class="o">.</span><span class="n">attention</span><span class="o">.</span><span class="n">qkv_lin</span><span class="o">.</span><span class="n">bias</span>
<span class="lineno">51</span> <span class="n">params</span><span class="p">[</span><span class="sa">f</span><span class="s1">&#39;</span><span class="si">{</span><span class="n">prefix</span><span class="si">}</span><span class="s1">.ffn.dense_h_h4.bias&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">layer</span><span class="o">.</span><span class="n">ffn</span><span class="o">.</span><span class="n">dense_h_h4</span><span class="o">.</span><span class="n">bias</span>
<span class="lineno">52</span> <span class="k">else</span><span class="p">:</span>
<span class="lineno">53</span> <span class="k">pass</span>
<span class="lineno">54</span>
<span class="lineno">55</span> <span class="k">return</span> <span class="n">params</span></pre></div>
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<h1>Utilities and Helpers</h1>
<ul><li><a href="cache.html">Cache for intermediate activations (for faster inference)</a> </li>
<li><a href="finetune.html">Tools for finetuning</a> </li>
<li><a href="trainer.html">Trainer</a> </li>
<li><a href="text_dataset.html">Text dataset</a></li></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">15</span><span></span><span class="kn">import</span> <span class="nn">typing</span>
<span class="lineno">16</span><span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">List</span><span class="p">,</span> <span class="n">Optional</span>
<span class="lineno">17</span>
<span class="lineno">18</span><span class="kn">import</span> <span class="nn">torch</span>
<span class="lineno">19</span>
<span class="lineno">20</span><span class="kn">from</span> <span class="nn">labml</span> <span class="kn">import</span> <span class="n">logger</span>
<span class="lineno">21</span><span class="kn">from</span> <span class="nn">labml.logger</span> <span class="kn">import</span> <span class="n">Text</span>
<span class="lineno">22</span><span class="kn">from</span> <span class="nn">labml_nn.neox.tokenizer</span> <span class="kn">import</span> <span class="n">get_tokenizer</span>
<span class="lineno">23</span>
<span class="lineno">24</span><span class="k">if</span> <span class="n">typing</span><span class="o">.</span><span class="n">TYPE_CHECKING</span><span class="p">:</span>
<span class="lineno">25</span> <span class="kn">from</span> <span class="nn">tokenizers</span> <span class="kn">import</span> <span class="n">Tokenizer</span></pre></div>
</div>
</div>
<div class='section' id='section-1'>
<div class='docs'>
<div class='section-link'>
<a href='#section-1'>#</a>
</div>
<p>Tokenizer singleton </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">28</span><span class="n">_TOKENIZER</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="s1">&#39;Tokenizer&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span></pre></div>
</div>
</div>
<div class='section' id='section-2'>
<div class='docs doc-strings'>
<div class='section-link'>
<a href='#section-2'>#</a>
</div>
<h3>Get token ids</h3>
<ul><li><code class="highlight"><span></span><span class="n">text</span></code>
is the text to tokenize </li>
<p><em>Returns</em> the token ids</p></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">31</span><span class="k">def</span> <span class="nf">get_tokens</span><span class="p">(</span><span class="n">text</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">List</span><span class="p">[</span><span class="nb">int</span><span class="p">]:</span></pre></div>
</div>
</div>
<div class='section' id='section-3'>
<div class='docs'>
<div class='section-link'>
<a href='#section-3'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">38</span> <span class="k">global</span> <span class="n">_TOKENIZER</span>
<span class="lineno">39</span> <span class="k">if</span> <span class="n">_TOKENIZER</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="lineno">40</span> <span class="n">_TOKENIZER</span> <span class="o">=</span> <span class="n">get_tokenizer</span><span class="p">()</span>
<span class="lineno">41</span> <span class="k">return</span> <span class="n">_TOKENIZER</span><span class="o">.</span><span class="n">encode_batch</span><span class="p">([</span><span class="n">text</span><span class="p">])[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">ids</span></pre></div>
</div>
</div>
<div class='section' id='section-4'>
<div class='docs doc-strings'>
<div class='section-link'>
<a href='#section-4'>#</a>
</div>
<h3>Print tokens from model outputs</h3>
<p>Pretty prints target tokens along side outputs from the model(s).</p>
<ul><li><code class="highlight"><span></span><span class="n">ids</span></code>
are the target token ids </li>
<li><code class="highlight"><span></span><span class="n">xs</span></code>
are the model(s) outputs</li></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">44</span><span class="k">def</span> <span class="nf">print_token_outputs</span><span class="p">(</span><span class="n">ids</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">int</span><span class="p">],</span> <span class="o">*</span><span class="n">xs</span><span class="p">:</span> <span class="n">torch</span><span class="o">.</span><span class="n">Tensor</span><span class="p">):</span></pre></div>
</div>
</div>
<div class='section' id='section-5'>
<div class='docs'>
<div class='section-link'>
<a href='#section-5'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">53</span> <span class="n">ids</span> <span class="o">=</span> <span class="n">ids</span> <span class="o">+</span> <span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span>
<span class="lineno">54</span> <span class="n">xs</span> <span class="o">=</span> <span class="p">[[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> <span class="o">+</span> <span class="n">x</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">max</span><span class="p">(</span><span class="n">dim</span><span class="o">=-</span><span class="mi">1</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">tolist</span><span class="p">()</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">xs</span><span class="p">]</span>
<span class="lineno">55</span>
<span class="lineno">56</span> <span class="n">print_tokens</span><span class="p">(</span><span class="n">ids</span><span class="p">,</span> <span class="n">xs</span><span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-6'>
<div class='docs doc-strings'>
<div class='section-link'>
<a href='#section-6'>#</a>
</div>
<h3>Print tokens</h3>
<p>Pretty prints tokens for comparison</p>
<ul><li><code class="highlight"><span></span><span class="n">target</span></code>
are the target token ids </li>
<li><code class="highlight"><span></span><span class="n">others</span></code>
are the sampled outputs from the model(s)</li></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">59</span><span class="k">def</span> <span class="nf">print_tokens</span><span class="p">(</span><span class="n">target</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">int</span><span class="p">],</span> <span class="n">others</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="n">List</span><span class="p">[</span><span class="nb">int</span><span class="p">]]):</span></pre></div>
</div>
</div>
<div class='section' id='section-7'>
<div class='docs'>
<div class='section-link'>
<a href='#section-7'>#</a>
</div>
<p>Load tokenizer </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">70</span> <span class="k">global</span> <span class="n">_TOKENIZER</span>
<span class="lineno">71</span> <span class="k">if</span> <span class="n">_TOKENIZER</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="lineno">72</span> <span class="n">_TOKENIZER</span> <span class="o">=</span> <span class="n">get_tokenizer</span><span class="p">()</span></pre></div>
</div>
</div>
<div class='section' id='section-8'>
<div class='docs'>
<div class='section-link'>
<a href='#section-8'>#</a>
</div>
<p>Convert the tokens to list of strings </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">75</span> <span class="n">text</span> <span class="o">=</span> <span class="p">[]</span>
<span class="lineno">76</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">target</span><span class="p">)):</span>
<span class="lineno">77</span> <span class="n">tokens</span> <span class="o">=</span> <span class="p">[</span><span class="n">_TOKENIZER</span><span class="o">.</span><span class="n">decode</span><span class="p">([</span><span class="n">target</span><span class="p">[</span><span class="n">i</span><span class="p">]])</span> <span class="k">if</span> <span class="n">target</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">!=</span> <span class="o">-</span><span class="mi">1</span> <span class="k">else</span> <span class="s1">&#39;---&#39;</span><span class="p">]</span>
<span class="lineno">78</span> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">others</span><span class="p">)):</span>
<span class="lineno">79</span> <span class="n">tokens</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">_TOKENIZER</span><span class="o">.</span><span class="n">decode</span><span class="p">([</span><span class="n">others</span><span class="p">[</span><span class="n">j</span><span class="p">][</span><span class="n">i</span><span class="p">]])</span> <span class="k">if</span> <span class="n">others</span><span class="p">[</span><span class="n">j</span><span class="p">][</span><span class="n">i</span><span class="p">]</span> <span class="o">!=</span> <span class="o">-</span><span class="mi">1</span> <span class="k">else</span> <span class="s1">&#39;---&#39;</span><span class="p">)</span>
<span class="lineno">80</span>
<span class="lineno">81</span> <span class="n">text</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">tokens</span><span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-9'>
<div class='docs'>
<div class='section-link'>
<a href='#section-9'>#</a>
</div>
<p>Stats </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">84</span> <span class="n">correct</span> <span class="o">=</span> <span class="p">[</span><span class="mi">0</span> <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="n">others</span><span class="p">]</span>
<span class="lineno">85</span> <span class="n">total</span> <span class="o">=</span> <span class="mi">0</span></pre></div>
</div>
</div>
<div class='section' id='section-10'>
<div class='docs'>
<div class='section-link'>
<a href='#section-10'>#</a>
</div>
<p>Iterate through tokens </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">88</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">target</span><span class="p">)):</span>
<span class="lineno">89</span> <span class="n">parts</span> <span class="o">=</span> <span class="p">[(</span><span class="sa">f</span><span class="s1">&#39;</span><span class="si">{</span><span class="n">i</span><span class="si">}</span><span class="s1">: &#39;</span><span class="p">,</span> <span class="n">Text</span><span class="o">.</span><span class="n">meta</span><span class="p">)]</span>
<span class="lineno">90</span> <span class="n">parts</span> <span class="o">+=</span> <span class="p">[(</span><span class="s1">&#39;&quot;&#39;</span><span class="p">,</span> <span class="n">Text</span><span class="o">.</span><span class="n">subtle</span><span class="p">),</span> <span class="p">(</span><span class="n">text</span><span class="p">[</span><span class="n">i</span><span class="p">][</span><span class="mi">0</span><span class="p">],</span> <span class="n">Text</span><span class="o">.</span><span class="n">subtle</span><span class="p">),</span> <span class="p">(</span><span class="s1">&#39;&quot;&#39;</span><span class="p">,</span> <span class="n">Text</span><span class="o">.</span><span class="n">subtle</span><span class="p">),</span> <span class="s1">&#39;</span><span class="se">\t</span><span class="s1">&#39;</span><span class="p">]</span></pre></div>
</div>
</div>
<div class='section' id='section-11'>
<div class='docs'>
<div class='section-link'>
<a href='#section-11'>#</a>
</div>
<p>Empty target </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">93</span> <span class="k">if</span> <span class="n">target</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">==</span> <span class="o">-</span><span class="mi">1</span><span class="p">:</span>
<span class="lineno">94</span> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">others</span><span class="p">)):</span>
<span class="lineno">95</span> <span class="n">parts</span> <span class="o">+=</span> <span class="p">[(</span><span class="s1">&#39;&quot;&#39;</span><span class="p">,</span> <span class="n">Text</span><span class="o">.</span><span class="n">subtle</span><span class="p">),</span> <span class="p">(</span><span class="n">text</span><span class="p">[</span><span class="n">i</span><span class="p">][</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">],</span> <span class="n">Text</span><span class="o">.</span><span class="n">subtle</span><span class="p">),</span> <span class="p">(</span><span class="s1">&#39;&quot;&#39;</span><span class="p">,</span> <span class="n">Text</span><span class="o">.</span><span class="n">subtle</span><span class="p">),</span> <span class="s1">&#39;</span><span class="se">\t</span><span class="s1">&#39;</span><span class="p">]</span>
<span class="lineno">96</span>
<span class="lineno">97</span> <span class="n">logger</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="n">parts</span><span class="p">)</span>
<span class="lineno">98</span> <span class="k">continue</span></pre></div>
</div>
</div>
<div class='section' id='section-12'>
<div class='docs'>
<div class='section-link'>
<a href='#section-12'>#</a>
</div>
<p>Number of tokens </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">101</span> <span class="n">total</span> <span class="o">+=</span> <span class="mi">1</span></pre></div>
</div>
</div>
<div class='section' id='section-13'>
<div class='docs'>
<div class='section-link'>
<a href='#section-13'>#</a>
</div>
<p>Other outputs </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">104</span> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">others</span><span class="p">)):</span>
<span class="lineno">105</span> <span class="n">correct</span><span class="p">[</span><span class="n">j</span><span class="p">]</span> <span class="o">+=</span> <span class="mi">1</span> <span class="k">if</span> <span class="n">others</span><span class="p">[</span><span class="n">j</span><span class="p">][</span><span class="n">i</span><span class="p">]</span> <span class="o">==</span> <span class="n">target</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="k">else</span> <span class="mi">0</span>
<span class="lineno">106</span>
<span class="lineno">107</span> <span class="n">parts</span> <span class="o">+=</span> <span class="p">[(</span><span class="s1">&#39;&quot;&#39;</span><span class="p">,</span> <span class="n">Text</span><span class="o">.</span><span class="n">subtle</span><span class="p">),</span>
<span class="lineno">108</span> <span class="p">(</span><span class="n">text</span><span class="p">[</span><span class="n">i</span><span class="p">][</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">],</span> <span class="n">Text</span><span class="o">.</span><span class="n">success</span> <span class="k">if</span> <span class="n">others</span><span class="p">[</span><span class="n">j</span><span class="p">][</span><span class="n">i</span><span class="p">]</span> <span class="o">==</span> <span class="n">target</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="k">else</span> <span class="n">Text</span><span class="o">.</span><span class="n">danger</span><span class="p">),</span>
<span class="lineno">109</span> <span class="p">(</span><span class="s1">&#39;&quot;&#39;</span><span class="p">,</span> <span class="n">Text</span><span class="o">.</span><span class="n">subtle</span><span class="p">),</span> <span class="s1">&#39;</span><span class="se">\t</span><span class="s1">&#39;</span><span class="p">]</span>
<span class="lineno">110</span>
<span class="lineno">111</span> <span class="n">logger</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="n">parts</span><span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-14'>
<div class='docs'>
<div class='section-link'>
<a href='#section-14'>#</a>
</div>
<p>Stats </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">114</span> <span class="n">parts</span> <span class="o">=</span> <span class="p">[(</span><span class="sa">f</span><span class="s1">&#39;</span><span class="si">{</span><span class="n">total</span><span class="si">}</span><span class="s1">&#39;</span><span class="p">,</span> <span class="n">Text</span><span class="o">.</span><span class="n">highlight</span><span class="p">),</span> <span class="s1">&#39;</span><span class="se">\t</span><span class="s1">&#39;</span><span class="p">]</span>
<span class="lineno">115</span> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">others</span><span class="p">)):</span>
<span class="lineno">116</span> <span class="n">parts</span> <span class="o">+=</span> <span class="p">[(</span><span class="sa">f</span><span class="s1">&#39;</span><span class="si">{</span><span class="n">correct</span><span class="p">[</span><span class="n">j</span><span class="p">]</span><span class="si">}</span><span class="s1">&#39;</span><span class="p">,</span> <span class="n">Text</span><span class="o">.</span><span class="n">value</span><span class="p">),</span> <span class="s1">&#39;</span><span class="se">\t</span><span class="s1">&#39;</span><span class="p">]</span>
<span class="lineno">117</span> <span class="n">logger</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="n">parts</span><span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-15'>
<div class='docs doc-strings'>
<div class='section-link'>
<a href='#section-15'>#</a>
</div>
<h3>Balance layers</h3>
<p>Split the <code class="highlight"><span></span><span class="n">n_layers</span></code>
into <code class="highlight"><span></span><span class="n">n_chunks</span></code>
. This is used for pipeline parallel training.</p>
<ul><li><code class="highlight"><span></span><span class="n">n_layers</span></code>
is the number of layers </li>
<li><code class="highlight"><span></span><span class="n">n_chunks</span></code>
is the number of chunks </li>
<p><em>Returns</em> returns a list with the number of layers for each chunk</p></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">120</span><span class="k">def</span> <span class="nf">balance_layers_simple</span><span class="p">(</span><span class="n">n_layers</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">n_chunks</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span></pre></div>
</div>
</div>
<div class='section' id='section-16'>
<div class='docs'>
<div class='section-link'>
<a href='#section-16'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">130</span> <span class="n">balance</span> <span class="o">=</span> <span class="p">[]</span>
<span class="lineno">131</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">n_chunks</span><span class="p">):</span>
<span class="lineno">132</span> <span class="n">balance</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">n_layers</span> <span class="o">-</span> <span class="nb">sum</span><span class="p">(</span><span class="n">balance</span><span class="p">))</span> <span class="o">//</span> <span class="p">(</span><span class="n">n_chunks</span> <span class="o">-</span> <span class="n">i</span><span class="p">))</span>
<span class="lineno">133</span>
<span class="lineno">134</span> <span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="nb">reversed</span><span class="p">(</span><span class="n">balance</span><span class="p">))</span></pre></div>
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<h1>LLM.int() on GPT-NeoX</h1>
<p>This implements a utility function to transform a <code class="highlight"><span></span><span class="n">nn</span><span class="o">.</span><span class="n">Linear</span></code>
layer to LLM.int8() linear layer.</p>
<p><a href="https://arxiv.org/abs/eb2bcaee1d0011edaa66a71c10a887e7">LLM.int8() paper</a> shows you can use int8 quantization while handling outliers to reduce memory footprint without performance degradation in large language models. They convert weights and inputs to scaled 8-bit integers and does matrix multiplication producing int32 results which is then converted back to float16 and rescaled. They show that in large langauge models, some features can give extreme values (outliers) that dominate the model&#x27;s output. These features get clamped in 8-bit integer space which causes the model performance to degrade. As a solution they pick these outliers (greater than a specified threshold) and compute their multiplications separately in float16 space. Since the percentage of outliers is around 0.01% this doesn&#x27;t increase memory usage, and prevents the model from degrading performance.</p>
<p>The code to transform GPT-NoeX layers is defined in <a href="../model.html#post_load_prepare">model.py</a>.</p>
<p>Here are example uses of GPT-NeoX with int8 quantization.</p>
<ul><li><a href="../samples/llm_int8.html">Generate Text</a> </li>
<li><a href="../evaluation/llm_int8.html">Run Evaluation Tests</a></li></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">33</span><span></span></pre></div>
</div>
</div>
<div class='section' id='section-1'>
<div class='docs'>
<div class='section-link'>
<a href='#section-1'>#</a>
</div>
<p>Import <a href="https://github.com/timdettmers/bitsandbytes"><code class="highlight"><span></span><span class="n">bitsandbytes</span></code>
</a> package </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">34</span><span class="k">try</span><span class="p">:</span>
<span class="lineno">35</span> <span class="kn">from</span> <span class="nn">bitsandbytes.nn</span> <span class="kn">import</span> <span class="n">Linear8bitLt</span><span class="p">,</span> <span class="n">Int8Params</span>
<span class="lineno">36</span><span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="lineno">37</span> <span class="k">raise</span> <span class="ne">ImportError</span><span class="p">(</span><span class="s1">&#39;&#39;&#39;Please install `bitsandbytes` with `pip install bitsandbytes -U`&#39;&#39;&#39;</span><span class="p">)</span>
<span class="lineno">38</span>
<span class="lineno">39</span><span class="kn">import</span> <span class="nn">torch</span>
<span class="lineno">40</span><span class="kn">from</span> <span class="nn">torch</span> <span class="kn">import</span> <span class="n">nn</span></pre></div>
</div>
</div>
<div class='section' id='section-2'>
<div class='docs doc-strings'>
<div class='section-link'>
<a href='#section-2'>#</a>
</div>
<h2>Transform a <code class="highlight"><span></span><span class="n">nn</span><span class="o">.</span><span class="n">Linear</span></code>
layer to LLM.int8() linear layer</h2>
<ul><li><code class="highlight"><span></span><span class="n">linear_module</span></code>
is the <code class="highlight"><span></span><span class="n">nn</span><span class="o">.</span><span class="n">Linear</span></code>
layer to transform </li>
<li><code class="highlight"><span></span><span class="n">device</span></code>
is the device of the model </li>
<li><code class="highlight"><span></span><span class="n">threshold</span></code>
is the threshold <span ><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.43056em;vertical-align:0em;"></span><span class="mord mathnormal" style="margin-right:0.0037em;">α</span></span></span></span></span> to use for outlier detection</li></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">43</span><span class="k">def</span> <span class="nf">make_llm_int8_linear</span><span class="p">(</span><span class="n">linear_module</span><span class="p">:</span> <span class="n">nn</span><span class="o">.</span><span class="n">Linear</span><span class="p">,</span> <span class="n">device</span><span class="p">:</span> <span class="n">torch</span><span class="o">.</span><span class="n">device</span><span class="p">,</span> <span class="n">threshold</span><span class="p">:</span> <span class="nb">float</span> <span class="o">=</span> <span class="mf">6.0</span><span class="p">):</span></pre></div>
</div>
</div>
<div class='section' id='section-3'>
<div class='docs'>
<div class='section-link'>
<a href='#section-3'>#</a>
</div>
<p> </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">53</span> <span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">linear_module</span><span class="p">,</span> <span class="n">nn</span><span class="o">.</span><span class="n">Linear</span><span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-4'>
<div class='docs'>
<div class='section-link'>
<a href='#section-4'>#</a>
</div>
<p>Create an empty Linear8bitLt module </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">56</span> <span class="n">int8_lin</span> <span class="o">=</span> <span class="n">Linear8bitLt</span><span class="p">(</span>
<span class="lineno">57</span> <span class="n">linear_module</span><span class="o">.</span><span class="n">in_features</span><span class="p">,</span>
<span class="lineno">58</span> <span class="n">linear_module</span><span class="o">.</span><span class="n">out_features</span><span class="p">,</span>
<span class="lineno">59</span> <span class="n">linear_module</span><span class="o">.</span><span class="n">bias</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">,</span>
<span class="lineno">60</span> <span class="n">has_fp16_weights</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
<span class="lineno">61</span> <span class="n">threshold</span><span class="o">=</span><span class="n">threshold</span><span class="p">,</span>
<span class="lineno">62</span> <span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-5'>
<div class='docs'>
<div class='section-link'>
<a href='#section-5'>#</a>
</div>
<p>Quantize the weights </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">65</span> <span class="n">int8_lin</span><span class="o">.</span><span class="n">_parameters</span><span class="p">[</span><span class="s1">&#39;weight&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">Int8Params</span><span class="p">(</span><span class="n">linear_module</span><span class="o">.</span><span class="n">weight</span><span class="o">.</span><span class="n">data</span><span class="o">.</span><span class="n">cpu</span><span class="p">(),</span>
<span class="lineno">66</span> <span class="n">requires_grad</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
<span class="lineno">67</span> <span class="n">has_fp16_weights</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span><span class="o">.</span><span class="n">to</span><span class="p">(</span><span class="n">device</span><span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-6'>
<div class='docs'>
<div class='section-link'>
<a href='#section-6'>#</a>
</div>
<p>Set the bias in float16 space </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">70</span> <span class="k">if</span> <span class="n">linear_module</span><span class="o">.</span><span class="n">bias</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="lineno">71</span> <span class="n">int8_lin</span><span class="o">.</span><span class="n">_parameters</span><span class="p">[</span><span class="s1">&#39;bias&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">Parameter</span><span class="p">(</span><span class="n">linear_module</span><span class="o">.</span><span class="n">bias</span><span class="o">.</span><span class="n">data</span><span class="p">,</span>
<span class="lineno">72</span> <span class="n">requires_grad</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-7'>
<div class='docs'>
<div class='section-link'>
<a href='#section-7'>#</a>
</div>
<p> </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">75</span> <span class="k">return</span> <span class="n">int8_lin</span></pre></div>
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<h1>Text Dataset for GPT-NeoX</h1>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">10</span><span></span><span class="kn">from</span> <span class="nn">pathlib</span> <span class="kn">import</span> <span class="n">PurePath</span><span class="p">,</span> <span class="n">Path</span>
<span class="lineno">11</span><span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">Optional</span><span class="p">,</span> <span class="n">List</span>
<span class="lineno">12</span>
<span class="lineno">13</span><span class="kn">import</span> <span class="nn">torch</span>
<span class="lineno">14</span><span class="kn">import</span> <span class="nn">torch.utils.data</span>
<span class="lineno">15</span><span class="kn">from</span> <span class="nn">labml</span> <span class="kn">import</span> <span class="n">lab</span>
<span class="lineno">16</span><span class="kn">from</span> <span class="nn">labml</span> <span class="kn">import</span> <span class="n">monit</span>
<span class="lineno">17</span><span class="kn">from</span> <span class="nn">labml.logger</span> <span class="kn">import</span> <span class="n">inspect</span>
<span class="lineno">18</span><span class="kn">from</span> <span class="nn">labml.utils.download</span> <span class="kn">import</span> <span class="n">download_file</span>
<span class="lineno">19</span>
<span class="lineno">20</span><span class="kn">from</span> <span class="nn">labml_nn.neox.tokenizer</span> <span class="kn">import</span> <span class="n">get_tokenizer</span></pre></div>
</div>
</div>
<div class='section' id='section-1'>
<div class='docs doc-strings'>
<div class='section-link'>
<a href='#section-1'>#</a>
</div>
<h3>Load text file</h3>
<ul><li><code class="highlight"><span></span><span class="n">path</span></code>
is the location of the text file </li>
<li><code class="highlight"><span></span><span class="n">url</span></code>
is the URL to download the file from </li>
<li><code class="highlight"><span></span><span class="n">filter_subset</span></code>
is the number of characters to filter. Use this during testing when trying large datasets </li>
<p><em>Returns</em> the text content</p></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">23</span><span class="k">def</span> <span class="nf">load_text</span><span class="p">(</span><span class="n">path</span><span class="p">:</span> <span class="n">PurePath</span><span class="p">,</span> <span class="n">url</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> <span class="o">*</span><span class="p">,</span> <span class="n">filter_subset</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">):</span></pre></div>
</div>
</div>
<div class='section' id='section-2'>
<div class='docs'>
<div class='section-link'>
<a href='#section-2'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">34</span> <span class="n">path</span> <span class="o">=</span> <span class="n">Path</span><span class="p">(</span><span class="n">path</span><span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-3'>
<div class='docs'>
<div class='section-link'>
<a href='#section-3'>#</a>
</div>
<p>Download if it doesn&#x27;t exist </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">37</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">path</span><span class="o">.</span><span class="n">exists</span><span class="p">():</span>
<span class="lineno">38</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">url</span><span class="p">:</span>
<span class="lineno">39</span> <span class="k">raise</span> <span class="ne">FileNotFoundError</span><span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">path</span><span class="p">))</span>
<span class="lineno">40</span> <span class="k">else</span><span class="p">:</span>
<span class="lineno">41</span> <span class="n">download_file</span><span class="p">(</span><span class="n">url</span><span class="p">,</span> <span class="n">path</span><span class="p">)</span>
<span class="lineno">42</span>
<span class="lineno">43</span> <span class="k">with</span> <span class="n">monit</span><span class="o">.</span><span class="n">section</span><span class="p">(</span><span class="s2">&quot;Load data&quot;</span><span class="p">):</span></pre></div>
</div>
</div>
<div class='section' id='section-4'>
<div class='docs'>
<div class='section-link'>
<a href='#section-4'>#</a>
</div>
<p>Load data </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">45</span> <span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">path</span><span class="p">),</span> <span class="s1">&#39;r&#39;</span><span class="p">)</span> <span class="k">as</span> <span class="n">f</span><span class="p">:</span>
<span class="lineno">46</span> <span class="n">text</span> <span class="o">=</span> <span class="n">f</span><span class="o">.</span><span class="n">read</span><span class="p">()</span></pre></div>
</div>
</div>
<div class='section' id='section-5'>
<div class='docs'>
<div class='section-link'>
<a href='#section-5'>#</a>
</div>
<p>Filter </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">48</span> <span class="k">if</span> <span class="n">filter_subset</span><span class="p">:</span>
<span class="lineno">49</span> <span class="n">text</span> <span class="o">=</span> <span class="n">text</span><span class="p">[:</span><span class="n">filter_subset</span><span class="p">]</span></pre></div>
</div>
</div>
<div class='section' id='section-6'>
<div class='docs'>
<div class='section-link'>
<a href='#section-6'>#</a>
</div>
<p> </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">52</span> <span class="k">return</span> <span class="n">text</span></pre></div>
</div>
</div>
<div class='section' id='section-7'>
<div class='docs doc-strings'>
<div class='section-link'>
<a href='#section-7'>#</a>
</div>
<h2>Dataset for fine-tuning GPT-NeoX</h2>
<p>This is not optimized to very large datasets.</p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">55</span><span class="k">class</span> <span class="nc">NeoXDataset</span><span class="p">(</span><span class="n">torch</span><span class="o">.</span><span class="n">utils</span><span class="o">.</span><span class="n">data</span><span class="o">.</span><span class="n">Dataset</span><span class="p">):</span></pre></div>
</div>
</div>
<div class='section' id='section-8'>
<div class='docs doc-strings'>
<div class='section-link'>
<a href='#section-8'>#</a>
</div>
<ul><li><code class="highlight"><span></span><span class="n">tokens</span></code>
is the list of token ids </li>
<li><code class="highlight"><span></span><span class="n">seq_len</span></code>
is the sequence length of a single training sample</li></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">62</span> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">tokens</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">int</span><span class="p">],</span> <span class="n">seq_len</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span></pre></div>
</div>
</div>
<div class='section' id='section-9'>
<div class='docs'>
<div class='section-link'>
<a href='#section-9'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">68</span> <span class="bp">self</span><span class="o">.</span><span class="n">seq_len</span> <span class="o">=</span> <span class="n">seq_len</span></pre></div>
</div>
</div>
<div class='section' id='section-10'>
<div class='docs'>
<div class='section-link'>
<a href='#section-10'>#</a>
</div>
<p>Number of samples </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">70</span> <span class="n">n_samples</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">tokens</span><span class="p">)</span> <span class="o">//</span> <span class="n">seq_len</span>
<span class="lineno">71</span> <span class="bp">self</span><span class="o">.</span><span class="n">n_samples</span> <span class="o">=</span> <span class="n">n_samples</span></pre></div>
</div>
</div>
<div class='section' id='section-11'>
<div class='docs'>
<div class='section-link'>
<a href='#section-11'>#</a>
</div>
<p>Truncate </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">73</span> <span class="n">tokens</span> <span class="o">=</span> <span class="n">tokens</span><span class="p">[:</span><span class="n">n_samples</span> <span class="o">*</span> <span class="n">seq_len</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span></pre></div>
</div>
</div>
<div class='section' id='section-12'>
<div class='docs'>
<div class='section-link'>
<a href='#section-12'>#</a>
</div>
<p>Create a PyTorch tensor </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">75</span> <span class="bp">self</span><span class="o">.</span><span class="n">tokens</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">tensor</span><span class="p">(</span><span class="n">tokens</span><span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-13'>
<div class='docs'>
<div class='section-link'>
<a href='#section-13'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">77</span> <span class="k">def</span> <span class="fm">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="lineno">78</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">n_samples</span></pre></div>
</div>
</div>
<div class='section' id='section-14'>
<div class='docs doc-strings'>
<div class='section-link'>
<a href='#section-14'>#</a>
</div>
<h3>Get a sample</h3>
<ul><li><code class="highlight"><span></span><span class="n">idx</span></code>
is the index of the sample </li>
<p><em>Returns</em> the input and the target</p></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">80</span> <span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">idx</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span></pre></div>
</div>
</div>
<div class='section' id='section-15'>
<div class='docs'>
<div class='section-link'>
<a href='#section-15'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">87</span> <span class="n">offset</span> <span class="o">=</span> <span class="n">idx</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">seq_len</span>
<span class="lineno">88</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">tokens</span><span class="p">[</span><span class="n">offset</span><span class="p">:</span><span class="n">offset</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">seq_len</span><span class="p">],</span> <span class="bp">self</span><span class="o">.</span><span class="n">tokens</span><span class="p">[</span><span class="n">offset</span> <span class="o">+</span> <span class="mi">1</span><span class="p">:</span><span class="n">offset</span> <span class="o">+</span> <span class="mi">1</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">seq_len</span><span class="p">]</span>
<span class="lineno">89</span>
<span class="lineno">90</span>
<span class="lineno">91</span><span class="n">DATASETS</span> <span class="o">=</span> <span class="p">{</span>
<span class="lineno">92</span> <span class="s1">&#39;tiny_shakespeare&#39;</span><span class="p">:</span> <span class="p">{</span>
<span class="lineno">93</span> <span class="s1">&#39;file&#39;</span><span class="p">:</span> <span class="s1">&#39;tiny_shakespeare.txt&#39;</span><span class="p">,</span>
<span class="lineno">94</span> <span class="s1">&#39;url&#39;</span><span class="p">:</span> <span class="s1">&#39;https://raw.githubusercontent.com/karpathy/char-rnn/master/data/tinyshakespeare/input.txt&#39;</span>
<span class="lineno">95</span> <span class="p">}</span>
<span class="lineno">96</span><span class="p">}</span></pre></div>
</div>
</div>
<div class='section' id='section-16'>
<div class='docs doc-strings'>
<div class='section-link'>
<a href='#section-16'>#</a>
</div>
<h3>Load Dataset</h3>
<ul><li><code class="highlight"><span></span><span class="n">seq_len</span></code>
is the sequence length of a single training sample </li>
<li><code class="highlight"><span></span><span class="n">dataset_name</span></code>
is the name of the dataset </li>
<p><em>Returns</em> the dataset</p></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">99</span><span class="k">def</span> <span class="nf">get_training_data</span><span class="p">(</span><span class="n">seq_len</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">32</span><span class="p">,</span> <span class="n">dataset_name</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s1">&#39;tiny_shakespeare&#39;</span><span class="p">,</span> <span class="n">truncate</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="o">-</span><span class="mi">1</span><span class="p">):</span></pre></div>
</div>
</div>
<div class='section' id='section-17'>
<div class='docs'>
<div class='section-link'>
<a href='#section-17'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">108</span> <span class="n">ds</span> <span class="o">=</span> <span class="n">DATASETS</span><span class="p">[</span><span class="n">dataset_name</span><span class="p">]</span></pre></div>
</div>
</div>
<div class='section' id='section-18'>
<div class='docs'>
<div class='section-link'>
<a href='#section-18'>#</a>
</div>
<p>Load the content </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">110</span> <span class="n">text</span> <span class="o">=</span> <span class="n">load_text</span><span class="p">(</span><span class="n">lab</span><span class="o">.</span><span class="n">get_data_path</span><span class="p">()</span> <span class="o">/</span> <span class="n">ds</span><span class="p">[</span><span class="s1">&#39;file&#39;</span><span class="p">],</span> <span class="n">ds</span><span class="p">[</span><span class="s1">&#39;url&#39;</span><span class="p">])</span></pre></div>
</div>
</div>
<div class='section' id='section-19'>
<div class='docs'>
<div class='section-link'>
<a href='#section-19'>#</a>
</div>
<p>Tokenize </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">112</span> <span class="n">tokenizer</span> <span class="o">=</span> <span class="n">get_tokenizer</span><span class="p">()</span>
<span class="lineno">113</span> <span class="n">tokens</span> <span class="o">=</span> <span class="n">tokenizer</span><span class="o">.</span><span class="n">encode_batch</span><span class="p">([</span><span class="n">text</span><span class="p">])[</span><span class="mi">0</span><span class="p">]</span>
<span class="lineno">114</span>
<span class="lineno">115</span> <span class="k">if</span> <span class="n">truncate</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
<span class="lineno">116</span> <span class="n">token_ids</span> <span class="o">=</span> <span class="n">tokens</span><span class="o">.</span><span class="n">ids</span><span class="p">[:</span><span class="n">truncate</span> <span class="o">*</span> <span class="n">seq_len</span><span class="p">]</span>
<span class="lineno">117</span> <span class="k">else</span><span class="p">:</span>
<span class="lineno">118</span> <span class="n">token_ids</span> <span class="o">=</span> <span class="n">tokens</span><span class="o">.</span><span class="n">ids</span></pre></div>
</div>
</div>
<div class='section' id='section-20'>
<div class='docs'>
<div class='section-link'>
<a href='#section-20'>#</a>
</div>
<p> </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">121</span> <span class="k">return</span> <span class="n">NeoXDataset</span><span class="p">(</span><span class="n">token_ids</span><span class="p">,</span> <span class="n">seq_len</span><span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-21'>
<div class='docs'>
<div class='section-link'>
<a href='#section-21'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">124</span><span class="k">def</span> <span class="nf">_test</span><span class="p">():</span>
<span class="lineno">125</span> <span class="n">dataset</span> <span class="o">=</span> <span class="n">get_training_data</span><span class="p">()</span>
<span class="lineno">126</span>
<span class="lineno">127</span> <span class="n">inspect</span><span class="p">(</span><span class="n">tokens</span><span class="o">=</span><span class="nb">len</span><span class="p">(</span><span class="n">dataset</span><span class="o">.</span><span class="n">tokens</span><span class="p">))</span></pre></div>
</div>
</div>
<div class='section' id='section-22'>
<div class='docs'>
<div class='section-link'>
<a href='#section-22'>#</a>
</div>
<p> </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">131</span><span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s1">&#39;__main__&#39;</span><span class="p">:</span>
<span class="lineno">132</span> <span class="n">_test</span><span class="p">()</span></pre></div>
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<div class="highlight"><pre><span class="lineno">1</span><span></span><span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">Optional</span><span class="p">,</span> <span class="n">Set</span><span class="p">,</span> <span class="n">List</span>
<span class="lineno">2</span>
<span class="lineno">3</span><span class="kn">import</span> <span class="nn">torch.nn</span> <span class="k">as</span> <span class="nn">nn</span>
<span class="lineno">4</span><span class="kn">import</span> <span class="nn">torch.optim</span>
<span class="lineno">5</span><span class="kn">import</span> <span class="nn">torch.utils.data</span>
<span class="lineno">6</span><span class="kn">from</span> <span class="nn">torch.cuda</span> <span class="kn">import</span> <span class="n">amp</span>
<span class="lineno">7</span><span class="kn">from</span> <span class="nn">torch.cuda.amp</span> <span class="kn">import</span> <span class="n">GradScaler</span>
<span class="lineno">8</span>
<span class="lineno">9</span><span class="kn">from</span> <span class="nn">labml</span> <span class="kn">import</span> <span class="n">monit</span><span class="p">,</span> <span class="n">tracker</span>
<span class="lineno">10</span><span class="kn">from</span> <span class="nn">labml.configs</span> <span class="kn">import</span> <span class="n">BaseConfigs</span><span class="p">,</span> <span class="n">option</span>
<span class="lineno">11</span><span class="kn">from</span> <span class="nn">labml_nn.neox.utils.finetune</span> <span class="kn">import</span> <span class="n">FineTuner</span></pre></div>
</div>
</div>
<div class='section' id='section-1'>
<div class='docs doc-strings'>
<div class='section-link'>
<a href='#section-1'>#</a>
</div>
<h3>Get trainable parameters</h3>
<ul><li><code class="highlight"><span></span><span class="n">model</span></code>
is the model to train </li>
<p><em>Returns</em> a list of parameters for training</p></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">14</span><span class="k">def</span> <span class="nf">get_trainable_params</span><span class="p">(</span><span class="n">model</span><span class="p">:</span> <span class="n">nn</span><span class="o">.</span><span class="n">Module</span><span class="p">):</span></pre></div>
</div>
</div>
<div class='section' id='section-2'>
<div class='docs'>
<div class='section-link'>
<a href='#section-2'>#</a>
</div>
<p>Get all parameters </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">23</span> <span class="n">params</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">model</span><span class="o">.</span><span class="n">parameters</span><span class="p">())</span></pre></div>
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</div>
<div class='section' id='section-3'>
<div class='docs'>
<div class='section-link'>
<a href='#section-3'>#</a>
</div>
<p>Filter parameters that require gradients </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">25</span> <span class="n">trainable_params</span> <span class="o">=</span> <span class="p">[</span><span class="n">p</span> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">params</span> <span class="k">if</span> <span class="n">p</span><span class="o">.</span><span class="n">requires_grad</span><span class="p">]</span></pre></div>
</div>
</div>
<div class='section' id='section-4'>
<div class='docs'>
<div class='section-link'>
<a href='#section-4'>#</a>
</div>
<p> </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">28</span> <span class="k">return</span> <span class="n">trainable_params</span></pre></div>
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</div>
<div class='section' id='section-5'>
<div class='docs'>
<div class='section-link'>
<a href='#section-5'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">31</span><span class="k">class</span> <span class="nc">TrainerConf</span><span class="p">(</span><span class="n">BaseConfigs</span><span class="p">):</span>
<span class="lineno">32</span> <span class="n">model</span><span class="p">:</span> <span class="n">nn</span><span class="o">.</span><span class="n">Module</span>
<span class="lineno">33</span> <span class="n">layers</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="n">nn</span><span class="o">.</span><span class="n">Module</span><span class="p">]</span>
<span class="lineno">34</span> <span class="n">optimizer</span><span class="p">:</span> <span class="n">torch</span><span class="o">.</span><span class="n">optim</span><span class="o">.</span><span class="n">Optimizer</span> <span class="o">=</span> <span class="s1">&#39;Adam&#39;</span>
<span class="lineno">35</span> <span class="n">train_loader</span><span class="p">:</span> <span class="n">torch</span><span class="o">.</span><span class="n">utils</span><span class="o">.</span><span class="n">data</span><span class="o">.</span><span class="n">DataLoader</span>
<span class="lineno">36</span> <span class="n">valid_loader</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">torch</span><span class="o">.</span><span class="n">utils</span><span class="o">.</span><span class="n">data</span><span class="o">.</span><span class="n">DataLoader</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
<span class="lineno">37</span> <span class="n">device</span><span class="p">:</span> <span class="n">torch</span><span class="o">.</span><span class="n">device</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">device</span><span class="p">(</span><span class="s1">&#39;cuda:0&#39;</span><span class="p">)</span>
<span class="lineno">38</span> <span class="n">scaler</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">GradScaler</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;Default&#39;</span>
<span class="lineno">39</span> <span class="n">is_amp</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">True</span>
<span class="lineno">40</span> <span class="n">dtype</span><span class="p">:</span> <span class="n">torch</span><span class="o">.</span><span class="n">dtype</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">float16</span>
<span class="lineno">41</span>
<span class="lineno">42</span> <span class="n">is_clone_layers</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">True</span>
<span class="lineno">43</span>
<span class="lineno">44</span> <span class="n">loss_func</span><span class="p">:</span> <span class="n">nn</span><span class="o">.</span><span class="n">Module</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">CrossEntropyLoss</span><span class="p">()</span>
<span class="lineno">45</span> <span class="n">checkpoints_per_epoch</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">0</span>
<span class="lineno">46</span> <span class="n">samples_per_epoch</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">0</span>
<span class="lineno">47</span>
<span class="lineno">48</span> <span class="n">grad_norm</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">float</span><span class="p">]</span> <span class="o">=</span> <span class="mf">1.0</span>
<span class="lineno">49</span> <span class="n">learning_rate</span><span class="p">:</span> <span class="nb">float</span> <span class="o">=</span> <span class="mf">3e-4</span>
<span class="lineno">50</span> <span class="n">max_seq_len</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">1024</span>
<span class="lineno">51</span> <span class="n">batch_size</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">64</span>
<span class="lineno">52</span> <span class="n">epochs</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">16</span>
<span class="lineno">53</span>
<span class="lineno">54</span> <span class="n">n_gpus</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">cuda</span><span class="o">.</span><span class="n">device_count</span><span class="p">()</span>
<span class="lineno">55</span>
<span class="lineno">56</span> <span class="n">filter_layers</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">Set</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span></pre></div>
</div>
</div>
<div class='section' id='section-6'>
<div class='docs doc-strings'>
<div class='section-link'>
<a href='#section-6'>#</a>
</div>
<ul><li><code class="highlight"><span></span><span class="n">dataset_split</span></code>
train/valid </li>
<li><code class="highlight"><span></span><span class="n">sample</span></code>
is the sample </li>
<p><em>Returns</em> the loss, output and the target</p></ul>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">58</span> <span class="k">def</span> <span class="nf">get_loss</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sample</span><span class="p">,</span> <span class="n">dataset_split</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span></pre></div>
</div>
</div>
<div class='section' id='section-7'>
<div class='docs'>
<div class='section-link'>
<a href='#section-7'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">64</span> <span class="n">data</span><span class="p">,</span> <span class="n">target</span> <span class="o">=</span> <span class="n">sample</span></pre></div>
</div>
</div>
<div class='section' id='section-8'>
<div class='docs'>
<div class='section-link'>
<a href='#section-8'>#</a>
</div>
<p>Forward pass </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">67</span> <span class="k">with</span> <span class="n">monit</span><span class="o">.</span><span class="n">section</span><span class="p">(</span><span class="s1">&#39;Forward pass&#39;</span><span class="p">):</span>
<span class="lineno">68</span> <span class="n">output</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">model</span><span class="p">(</span><span class="n">data</span><span class="o">.</span><span class="n">to</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">device</span><span class="p">))</span></pre></div>
</div>
</div>
<div class='section' id='section-9'>
<div class='docs'>
<div class='section-link'>
<a href='#section-9'>#</a>
</div>
<p>Move targets to the same device as output </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">70</span> <span class="n">target</span> <span class="o">=</span> <span class="n">target</span><span class="o">.</span><span class="n">to</span><span class="p">(</span><span class="n">output</span><span class="o">.</span><span class="n">device</span><span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-10'>
<div class='docs'>
<div class='section-link'>
<a href='#section-10'>#</a>
</div>
<p>Calculate loss </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">72</span> <span class="n">loss</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">loss_func</span><span class="p">(</span><span class="n">output</span><span class="o">.</span><span class="n">view</span><span class="p">(</span><span class="n">target</span><span class="o">.</span><span class="n">numel</span><span class="p">(),</span> <span class="o">-</span><span class="mi">1</span><span class="p">),</span> <span class="n">target</span><span class="o">.</span><span class="n">view</span><span class="p">(</span><span class="o">-</span><span class="mi">1</span><span class="p">))</span>
<span class="lineno">73</span>
<span class="lineno">74</span> <span class="k">return</span> <span class="n">loss</span><span class="p">,</span> <span class="n">output</span><span class="p">,</span> <span class="n">target</span></pre></div>
</div>
</div>
<div class='section' id='section-11'>
<div class='docs'>
<div class='section-link'>
<a href='#section-11'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">76</span> <span class="k">def</span> <span class="nf">train</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="lineno">77</span> <span class="k">for</span> <span class="n">epoch</span> <span class="ow">in</span> <span class="n">monit</span><span class="o">.</span><span class="n">loop</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">epochs</span><span class="p">):</span>
<span class="lineno">78</span> <span class="bp">self</span><span class="o">.</span><span class="n">train_epoch</span><span class="p">()</span>
<span class="lineno">79</span> <span class="n">tracker</span><span class="o">.</span><span class="n">new_line</span><span class="p">()</span></pre></div>
</div>
</div>
<div class='section' id='section-12'>
<div class='docs'>
<div class='section-link'>
<a href='#section-12'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">81</span> <span class="k">def</span> <span class="nf">sample</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">idx</span><span class="p">):</span>
<span class="lineno">82</span> <span class="k">pass</span></pre></div>
</div>
</div>
<div class='section' id='section-13'>
<div class='docs'>
<div class='section-link'>
<a href='#section-13'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">84</span> <span class="k">def</span> <span class="nf">save_checkpoint</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">idx</span><span class="p">):</span>
<span class="lineno">85</span> <span class="k">pass</span></pre></div>
</div>
</div>
<div class='section' id='section-14'>
<div class='docs'>
<div class='section-link'>
<a href='#section-14'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">87</span> <span class="k">def</span> <span class="nf">get_iterators</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
</div>
</div>
<div class='section' id='section-15'>
<div class='docs'>
<div class='section-link'>
<a href='#section-15'>#</a>
</div>
<p>Iterate through the batches </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">89</span> <span class="n">iterators</span> <span class="o">=</span> <span class="p">[(</span><span class="s1">&#39;train&#39;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">train_loader</span><span class="p">)]</span>
<span class="lineno">90</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">valid_loader</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="lineno">91</span> <span class="n">iterators</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="s1">&#39;valid&#39;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">valid_loader</span><span class="p">))</span>
<span class="lineno">92</span>
<span class="lineno">93</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">samples_per_epoch</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
<span class="lineno">94</span> <span class="n">iterators</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="bp">self</span><span class="o">.</span><span class="n">sample</span><span class="p">,</span> <span class="p">[</span><span class="n">i</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">samples_per_epoch</span><span class="p">)]))</span>
<span class="lineno">95</span>
<span class="lineno">96</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">checkpoints_per_epoch</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
<span class="lineno">97</span> <span class="n">iterators</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="bp">self</span><span class="o">.</span><span class="n">save_checkpoint</span><span class="p">,</span> <span class="p">[</span><span class="n">i</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">checkpoints_per_epoch</span><span class="p">)]))</span>
<span class="lineno">98</span>
<span class="lineno">99</span> <span class="k">return</span> <span class="n">iterators</span></pre></div>
</div>
</div>
<div class='section' id='section-16'>
<div class='docs'>
<div class='section-link'>
<a href='#section-16'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">101</span> <span class="k">def</span> <span class="nf">train_epoch</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
</div>
</div>
<div class='section' id='section-17'>
<div class='docs'>
<div class='section-link'>
<a href='#section-17'>#</a>
</div>
<p>Set model for train </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">103</span> <span class="bp">self</span><span class="o">.</span><span class="n">model</span><span class="o">.</span><span class="n">train</span><span class="p">()</span>
<span class="lineno">104</span>
<span class="lineno">105</span> <span class="n">iterators</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_iterators</span><span class="p">()</span>
<span class="lineno">106</span> <span class="k">for</span> <span class="n">split_name</span><span class="p">,</span> <span class="n">sample</span> <span class="ow">in</span> <span class="n">monit</span><span class="o">.</span><span class="n">mix</span><span class="p">(</span><span class="mi">1024</span><span class="p">,</span> <span class="o">*</span><span class="n">iterators</span><span class="p">):</span>
<span class="lineno">107</span> <span class="k">if</span> <span class="n">split_name</span> <span class="o">==</span> <span class="s1">&#39;train&#39;</span><span class="p">:</span></pre></div>
</div>
</div>
<div class='section' id='section-18'>
<div class='docs'>
<div class='section-link'>
<a href='#section-18'>#</a>
</div>
<p>Set gradients to zero </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">109</span> <span class="bp">self</span><span class="o">.</span><span class="n">optimizer</span><span class="o">.</span><span class="n">zero_grad</span><span class="p">()</span>
<span class="lineno">110</span> <span class="n">tracker</span><span class="o">.</span><span class="n">add_global_step</span><span class="p">()</span>
<span class="lineno">111</span>
<span class="lineno">112</span> <span class="k">with</span> <span class="n">torch</span><span class="o">.</span><span class="n">set_grad_enabled</span><span class="p">(</span><span class="n">split_name</span> <span class="o">==</span> <span class="s1">&#39;train&#39;</span><span class="p">):</span>
<span class="lineno">113</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">is_amp</span><span class="p">:</span></pre></div>
</div>
</div>
<div class='section' id='section-19'>
<div class='docs'>
<div class='section-link'>
<a href='#section-19'>#</a>
</div>
<p>Forward pass </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">115</span> <span class="k">with</span> <span class="n">amp</span><span class="o">.</span><span class="n">autocast</span><span class="p">():</span>
<span class="lineno">116</span> <span class="n">loss</span><span class="p">,</span> <span class="n">output</span><span class="p">,</span> <span class="n">target</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_loss</span><span class="p">(</span><span class="n">sample</span><span class="p">,</span> <span class="n">split_name</span><span class="p">)</span>
<span class="lineno">117</span> <span class="k">else</span><span class="p">:</span>
<span class="lineno">118</span> <span class="n">loss</span><span class="p">,</span> <span class="n">output</span><span class="p">,</span> <span class="n">target</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_loss</span><span class="p">(</span><span class="n">sample</span><span class="p">,</span> <span class="n">split_name</span><span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-20'>
<div class='docs'>
<div class='section-link'>
<a href='#section-20'>#</a>
</div>
<p>Get predictions </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">121</span> <span class="n">pred</span> <span class="o">=</span> <span class="n">output</span><span class="o">.</span><span class="n">argmax</span><span class="p">(</span><span class="n">dim</span><span class="o">=-</span><span class="mi">1</span><span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-21'>
<div class='docs'>
<div class='section-link'>
<a href='#section-21'>#</a>
</div>
<p>Calculate accuracy </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">123</span> <span class="n">accuracy</span> <span class="o">=</span> <span class="n">pred</span><span class="o">.</span><span class="n">eq</span><span class="p">(</span><span class="n">target</span><span class="p">)</span><span class="o">.</span><span class="n">sum</span><span class="p">()</span><span class="o">.</span><span class="n">item</span><span class="p">()</span> <span class="o">/</span> <span class="p">(</span><span class="n">target</span> <span class="o">!=</span> <span class="o">-</span><span class="mi">100</span><span class="p">)</span><span class="o">.</span><span class="n">sum</span><span class="p">()</span>
<span class="lineno">124</span>
<span class="lineno">125</span> <span class="n">tracker</span><span class="o">.</span><span class="n">add</span><span class="p">({</span><span class="sa">f</span><span class="s1">&#39;loss.</span><span class="si">{</span><span class="n">split_name</span><span class="si">}</span><span class="s1">&#39;</span><span class="p">:</span> <span class="n">loss</span><span class="p">,</span> <span class="sa">f</span><span class="s1">&#39;acc.</span><span class="si">{</span><span class="n">split_name</span><span class="si">}</span><span class="s1">&#39;</span><span class="p">:</span> <span class="n">accuracy</span> <span class="o">*</span> <span class="mi">100</span><span class="p">})</span>
<span class="lineno">126</span>
<span class="lineno">127</span> <span class="k">if</span> <span class="n">split_name</span> <span class="o">==</span> <span class="s1">&#39;train&#39;</span><span class="p">:</span>
<span class="lineno">128</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">scaler</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span></pre></div>
</div>
</div>
<div class='section' id='section-22'>
<div class='docs'>
<div class='section-link'>
<a href='#section-22'>#</a>
</div>
<p>Backward pass </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">130</span> <span class="n">loss</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scaler</span><span class="o">.</span><span class="n">scale</span><span class="p">(</span><span class="n">loss</span><span class="p">)</span></pre></div>
</div>
</div>
<div class='section' id='section-23'>
<div class='docs'>
<div class='section-link'>
<a href='#section-23'>#</a>
</div>
<p>tracker.add({&#x27;loss.scaled&#x27;: loss}) </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">133</span> <span class="k">with</span> <span class="n">monit</span><span class="o">.</span><span class="n">section</span><span class="p">(</span><span class="s1">&#39;Backward pass&#39;</span><span class="p">):</span>
<span class="lineno">134</span> <span class="n">loss</span><span class="o">.</span><span class="n">backward</span><span class="p">()</span></pre></div>
</div>
</div>
<div class='section' id='section-24'>
<div class='docs'>
<div class='section-link'>
<a href='#section-24'>#</a>
</div>
<p>Optimize </p>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">137</span> <span class="k">with</span> <span class="n">monit</span><span class="o">.</span><span class="n">section</span><span class="p">(</span><span class="s1">&#39;Optimize&#39;</span><span class="p">):</span>
<span class="lineno">138</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">scaler</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="lineno">139</span> <span class="bp">self</span><span class="o">.</span><span class="n">optimizer</span><span class="o">.</span><span class="n">step</span><span class="p">()</span>
<span class="lineno">140</span> <span class="k">else</span><span class="p">:</span>
<span class="lineno">141</span> <span class="bp">self</span><span class="o">.</span><span class="n">scaler</span><span class="o">.</span><span class="n">unscale_</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">optimizer</span><span class="p">)</span>
<span class="lineno">142</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">grad_norm</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="lineno">143</span> <span class="n">torch</span><span class="o">.</span><span class="n">nn</span><span class="o">.</span><span class="n">utils</span><span class="o">.</span><span class="n">clip_grad_norm_</span><span class="p">(</span><span class="n">get_trainable_params</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">model</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">grad_norm</span><span class="p">)</span>
<span class="lineno">144</span> <span class="bp">self</span><span class="o">.</span><span class="n">scaler</span><span class="o">.</span><span class="n">step</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">optimizer</span><span class="p">)</span>
<span class="lineno">145</span> <span class="bp">self</span><span class="o">.</span><span class="n">scaler</span><span class="o">.</span><span class="n">update</span><span class="p">()</span>
<span class="lineno">146</span>
<span class="lineno">147</span> <span class="n">tracker</span><span class="o">.</span><span class="n">save</span><span class="p">()</span></pre></div>
</div>
</div>
<div class='section' id='section-25'>
<div class='docs'>
<div class='section-link'>
<a href='#section-25'>#</a>
</div>
</div>
<div class='code'>
<div class="highlight"><pre><span class="lineno">150</span><span class="nd">@option</span><span class="p">(</span><span class="n">TrainerConf</span><span class="o">.</span><span class="n">optimizer</span><span class="p">,</span> <span class="s1">&#39;Adam&#39;</span><span class="p">)</span>
<span class="lineno">151</span><span class="k">def</span> <span class="nf">adam_optimizer</span><span class="p">(</span><span class="n">c</span><span class="p">:</span> <span class="n">TrainerConf</span><span class="p">):</span>
<span class="lineno">152</span> <span class="k">if</span> <span class="n">c</span><span class="o">.</span><span class="n">dtype</span> <span class="o">==</span> <span class="n">torch</span><span class="o">.</span><span class="n">float32</span><span class="p">:</span>
<span class="lineno">153</span> <span class="k">return</span> <span class="n">torch</span><span class="o">.</span><span class="n">optim</span><span class="o">.</span><span class="n">Adam</span><span class="p">(</span><span class="n">get_trainable_params</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">model</span><span class="p">),</span> <span class="n">lr</span><span class="o">=</span><span class="n">c</span><span class="o">.</span><span class="n">learning_rate</span><span class="p">)</span>
<span class="lineno">154</span> <span class="k">elif</span> <span class="n">c</span><span class="o">.</span><span class="n">dtype</span> <span class="o">==</span> <span class="n">torch</span><span class="o">.</span><span class="n">float16</span><span class="p">:</span>
<span class="lineno">155</span> <span class="kn">from</span> <span class="nn">labml_nn.optimizers.adam_fp16</span> <span class="kn">import</span> <span class="n">AdamFP16</span>
<span class="lineno">156</span> <span class="k">return</span> <span class="n">AdamFP16</span><span class="p">(</span><span class="n">get_trainable_params</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">model</span><span class="p">),</span> <span class="n">lr</span><span class="o">=</span><span class="n">c</span><span class="o">.</span><span class="n">learning_rate</span><span class="p">)</span>
<span class="lineno">157</span> <span class="k">else</span><span class="p">:</span>
<span class="lineno">158</span> <span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">()</span>
<span class="lineno">159</span>
<span class="lineno">160</span>
<span class="lineno">161</span><span class="nd">@option</span><span class="p">(</span><span class="n">TrainerConf</span><span class="o">.</span><span class="n">optimizer</span><span class="p">,</span> <span class="s1">&#39;SGD&#39;</span><span class="p">)</span>
<span class="lineno">162</span><span class="k">def</span> <span class="nf">sgd_optimizer</span><span class="p">(</span><span class="n">c</span><span class="p">:</span> <span class="n">TrainerConf</span><span class="p">):</span>
<span class="lineno">163</span> <span class="k">return</span> <span class="n">torch</span><span class="o">.</span><span class="n">optim</span><span class="o">.</span><span class="n">SGD</span><span class="p">(</span><span class="n">get_trainable_params</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">model</span><span class="p">),</span> <span class="n">lr</span><span class="o">=</span><span class="n">c</span><span class="o">.</span><span class="n">learning_rate</span><span class="p">)</span>
<span class="lineno">164</span>
<span class="lineno">165</span>
<span class="lineno">166</span><span class="nd">@option</span><span class="p">(</span><span class="n">TrainerConf</span><span class="o">.</span><span class="n">scaler</span><span class="p">,</span> <span class="s1">&#39;Default&#39;</span><span class="p">)</span>
<span class="lineno">167</span><span class="k">def</span> <span class="nf">grad_scaler</span><span class="p">(</span><span class="n">c</span><span class="p">:</span> <span class="n">TrainerConf</span><span class="p">):</span>
<span class="lineno">168</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">c</span><span class="o">.</span><span class="n">is_amp</span><span class="p">:</span>
<span class="lineno">169</span> <span class="k">return</span> <span class="kc">None</span>
<span class="lineno">170</span>
<span class="lineno">171</span> <span class="k">if</span> <span class="n">c</span><span class="o">.</span><span class="n">dtype</span> <span class="o">==</span> <span class="n">torch</span><span class="o">.</span><span class="n">float16</span><span class="p">:</span>
<span class="lineno">172</span> <span class="kn">from</span> <span class="nn">labml_nn.optimizers.adam_fp16</span> <span class="kn">import</span> <span class="n">GradScalerFP16</span>
<span class="lineno">173</span> <span class="k">return</span> <span class="n">GradScalerFP16</span><span class="p">()</span>
<span class="lineno">174</span> <span class="k">else</span><span class="p">:</span>
<span class="lineno">175</span> <span class="k">return</span> <span class="n">GradScaler</span><span class="p">()</span>
<span class="lineno">176</span>
<span class="lineno">177</span>
<span class="lineno">178</span><span class="k">class</span> <span class="nc">PipelineParallelTrainerConf</span><span class="p">(</span><span class="n">TrainerConf</span><span class="p">):</span>
<span class="lineno">179</span> <span class="n">is_checkpointing</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span>
<span class="lineno">180</span> <span class="n">chunks</span><span class="p">:</span> <span class="nb">int</span>
<span class="lineno">181</span>
<span class="lineno">182</span> <span class="n">fine_tuner</span><span class="p">:</span> <span class="n">FineTuner</span></pre></div>
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