Method get_dot_product_dns_dns

src/thundersvm/kernelmatrix.cpp:198–211

}

void KernelMatrix::get_dot_product_dns_dns(const SyncArray<int> &idx, SyncArray<kernel_type> &dot_product) const {
    SyncArray<kernel_type> data_rows(idx.size() * n_features_);
    data_rows.mem_set(0);
    SyncArray<kernel_type> origin_dense(n_instances_ * n_features());
    origin_dense.mem_set(0);
    SyncArray<int> origin_idx(n_instances_);
    int *origin_idx_data = origin_idx.host_data();
    for (int i = 0; i < n_instances_; ++i) {
        origin_idx_data[i] = i;
    }
    get_working_set_ins(val_, col_ind_, row_ptr_, idx, data_rows, idx.size(), n_features_);
    get_working_set_ins(val_, col_ind_, row_ptr_, origin_idx, origin_dense, origin_idx.size(), n_features_);
    dns_dns_mul(data_rows, idx.size(), origin_dense, dot_product);
}
#endif