SG_BEGIN_DECL()
XBT_PUBLIC_DATA(xbt_dict_t) host_list;
-XBT_PUBLIC_DATA(int) SURF_HOST_LEVEL; //Surf workstation level
XBT_PUBLIC_DATA(int) SIMIX_STORAGE_LEVEL; //Simix storage level
XBT_PUBLIC_DATA(int) SD_STORAGE_LEVEL; //Simdag storage level
XBT_PUBLIC_DATA(int) COORD_HOST_LEVEL; //Coordinates level