OFs in the mesh</span></span></div></div></div><h2  class = 'S5' id = 'H_A43EFAAC' ><span>Index computation on CPU (serial)</span></h2><div class="CodeBlock"><div class="inlineWrapper"><div  class = 'S6'><span style="white-space: pre;"><span>tic;</span></span></div></div><div class="inlineWrapper"><div  class = 'S7'><span style="white-space: pre;"><span>[iKhf, jKhf] = Index_ssa(Mesh.elements, sets);	</span><span style="color: rgb(60, 118, 61);">% Row/column indices of K</span></span></div></div><div class="