span class="o">.</span><span class="n">num_gpus</span> <span class="o">=</span> <span class="n">num_gpus</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">mp_group</span> <span class="o">=</span> <span class="n">mp_group</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">varname</span> <span class="o">=</span> <span class="s2">&quot;layer&quot;</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">slicer</span> <sp