Class bitmask

deps/memkind/src/src/hbwmalloc.c:204–204

    char *aligned_beg = (char *)((uintptr_t)addr & page_mask);
    nodemask_t nodemask;
    struct bitmask expected_nodemask = {NUMA_NUM_NODES, nodemask.n};

    memkind_hbw_all_get_mbind_nodemask(NULL, expected_nodemask.maskp,
                                       expected_nodemask.size);