message: added comment regarding gpu being disabled
diff: @@ -107,7 +107,7 @@ void* mm::Insert(void *ptr, const size_t bytes)
  void *mm::Erase(void *ptr)
  {
  if (!config::usingMM()) { return ptr; }
  - if (config::gpuDisabled()) { return ptr; }
  + if (config::gpuDisabled()) { return ptr; } //I think by default the condition should be true.
  const bool known = Known(maps, ptr);
  // if (!known) { BUILTIN_TRAP; }
  if (!known) { mfem_error("mm::Erase"); }
  