message: Change default problem size and output unit
diff: @@ -37,7 +37,7 @@ template<typename Kernel> struct PA_3D_Kernels
  double mdof;
  PA_3D_Kernels(int order):
  - N(Device::IsEnabled()?16:8),
  + N(Device::IsEnabled()?32:8),
  order(order),
  mesh(Mesh::MakeCartesian3D(N,N,N,Element::HEXAHEDRON)),
  fec(order, dim),
  @@ -65,6 +65,7 @@ template<typename Kernel> struct PA_3D_Kernels
  cg.iterative_mode = false;
  tic_toc.Clear();
  + MFEM_DEVICE_SYNC;
  }
  void benchmark()
  @@ -90,7 +91,7 @@ static void Kernel(bm::State &state){\
  while (state.KeepRunning()) { ker.benchmark(); }\
  state.counters["MDof"] = bm::Counter(ker.Mdof(), bm::Counter::kIsRate);\
  state.counters["MDof/s"] = bm::Counter(ker.Mdofs());}\
  -BENCHMARK(Kernel)->DenseRange(1,6);
  +BENCHMARK(Kernel)->DenseRange(1,6)->Unit(bm::kMillisecond);
  /**
  Launch all benchmarks: Mass & Diffusion
  