etric multigrid.
  </div>
  </li>
  <div id="ML">
  <li> Run with the same options but use the ML preconditioner from Trilinos
    <pre>
     mpiexec -n 4 ./ex19 -da_refine 5 -snes_monitor -ksp_monitor -snes_view -pc_type ml     <a href="https://www.mcs.anl.gov/petsc/petsc-current/src/snes/tutorials/output/ex19_tut_8.out">[Expected output]</a>
    </pre>
  </div>
  <li> Run on 1 processor with the default linear solver and profile the run
    <pre>
     mpiexec -n 1 ./ex19 -da_refine 5 -log_view     <a href