message: Minor update to ex25.
diff: // ex25 -o 2 -f 2.0 -ref 1 -prob 4 -m ../data/inline-hex.mesh
  //
  // Device sample runs:
  -// TODO: PA not working because matrix coef. in CurlCurlIntegrator is not yet supported
  -// ex25 -o 2 -f 1.0 -ref 2 -prob 0 -pa
  -// ex25 -o 2 -f 5.0 -ref 4 -prob 2 -pa
  -// ex25 -o 2 -f 1.0 -ref 2 -prob 3 -pa
  -// ex25 -o 2 -f 1.0 -ref 2 -prob 0 -pa -m ../data/beam-quad.mesh
  -// ex25 -o 2 -f 8.0 -ref 3 -prob 4 -pa -m ../data/inline-quad.mesh
  -// ex25 -o 2 -f 2.0 -ref 1 -prob 4 -pa -m ../data/inline-hex.mesh
  +// TODO: PA is working but device "cuda" is not tested yet
  +// ex25 -o 2 -f 8.0 -ref 3 -prob 4 -m ../data/inline-quad.mesh -pa -d cuda
  +// ex25 -o 2 -f 2.0 -ref 1 -prob 4 -m ../data/inline-hex.mesh -pa -d cuda
  //
  // Description: This example code solves a simple electromagnetic wave
  // propagation problem corresponding to the second order
  @@ -504,7 +500,7 @@ int main(int argc, char *argv[])
  GMRESSolver gmres;
  gmres.SetPrintLevel(1);
  gmres.SetKDim(200);
  - gmres.SetMaxIter(2000);
  + gmres.SetMaxIter(pa ? 5000 : 2000);
  gmres.SetRelTol(1e-5);
  gmres.SetAbsTol(0.0);
  gmres.SetOperator(*A);
  