Function sort_f

src/thundersvm/kernel/smo_kernel.cpp:321–332

    }

    void sort_f(SyncArray<float_type> &f_val2sort, SyncArray<int> &f_idx2sort) {
        vector<std::pair<float_type, int>> paris;
        float_type *f_val2sort_data = f_val2sort.host_data();
        int *f_idx2sort_data = f_idx2sort.host_data();
        for (int i = 0; i < f_val2sort.size(); ++i) {
            paris.emplace_back(f_val2sort_data[i], f_idx2sort_data[i]);
        }
        std::sort(paris.begin(), paris.end());
        for (int i = 0; i < f_idx2sort.size(); ++i) {
            f_idx2sort_data[i] = paris[i].second;
        }
    }
}