- updated TODO

experiment.cpp

@@ -32,6 +32,7 @@ int main(int argc, char** argv)
   MPI_Comm_size(MPI_COMM_WORLD, &world_size);
 
   std::size_t ncell = 10'000;
+  // TODO: Change nhalo to /2, /4, /8, /16
   std::size_t nhalo = ncell / 2;
   double xl = -2.0;
   double xr = 2.0;