ions than the default solver
  </li>
  <div id="HYPRE">
  <li> Run with the same options but use algebraic multigrid (hypre's BoomerAMG) as the linear solver
    <pre>
     mpiexec -n 4 ./ex19 -da_refine 5 -snes_monitor -ksp_monitor -snes_view -pc_type hypre     <a href="https://www.mcs.anl.gov/petsc/petsc-current/src/snes/tutorials/output/ex19_tut_3.out">[Expected output]</a>
    </pre>
    Note this requires many fewer iterations than the default solver but requires more linear solver iterations than geom