"n">zeros</span><span class="p">(</span><span class="n">n</span><span class="p">,</span> <span class="n">device</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">device</span><span class="p">)</span>  <span class="c1"># ,dtype=torch.float64)</span>
        <span class="n">resid</span> <span class="o">=</span> <span class="n">b</span><span class="o">.</span><span class="n">detach</span><span class="p">()</span><span class="o">.</span><span class="n">clone</span