__test__cpu_map_intersect
ret = __test__cpu_map_intersect("4,2,1", "4,5,7", 1, "4");
ret = __test__cpu_map_intersect("1-8", "6-9", 3, "6-8");
ret = __test__cpu_map_intersect("1-8,12-20", "6-9,15", 4, "6-8,15");
ret = __test__cpu_map_intersect("4,2,1", "1", 1, "1");
ret = __test__cpu_map_intersect("1", "4,2,1", 1, "1");
ret = __test__cpu_map_intersect("1", "1", 1, "1");