hods)</span>
          <span id="pc">PC (Preconditioners)</span>
        </div>
        <div>
          <span id="mat">Matrices</span>
          <span id="vec">Vectors</span>
          <span id="is">Index Sets</span>
        </div>
        <hr>
        <div>
          <span id="blas">BLAS</span>
          <span id="mpi">MPI</span>
        </div>
      </div>

    </div>

    <hr>
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