fix compilation errors

Author: tarang-jain

cpp/src/preprocessing/quantize/detail/pq.cuh

@@ -502,30 +502,6 @@ inline auto make_pq_params_from_vpq(const cuvs::neighbors::vpq_params& in_params
     max_train_points_per_vq_cluster};
 }
 
-inline auto make_pq_params_from_vpq(const cuvs::neighbors::vpq_params& in_params,
-                                    const uint64_t n_rows)
-  -> cuvs::preprocessing::quantize::pq::params
-{
-  const uint32_t pq_n_centers              = 1 << in_params.pq_bits;
-  uint32_t max_train_points_per_vq_cluster = in_params.max_train_points_per_vq_cluster;
-  if (in_params.vq_n_centers > 0) {
-    max_train_points_per_vq_cluster =
-      std::min<uint32_t>(max_train_points_per_vq_cluster,
-                         n_rows * in_params.vq_kmeans_trainset_fraction / in_params.vq_n_centers);
-  }
-  return cuvs::preprocessing::quantize::pq::params{
-    in_params.pq_bits,
-    in_params.pq_dim,
-    true,
-    true,
-    in_params.vq_n_centers,
-    in_params.kmeans_n_iters,
-    in_params.pq_kmeans_type,
-    std::min<uint32_t>(in_params.max_train_points_per_pq_code,
-                       n_rows * in_params.pq_kmeans_trainset_fraction / pq_n_centers),
-    max_train_points_per_vq_cluster};
-}
-
 template <typename DatasetT, typename MathT, typename IdxT>
 auto vpq_build(const raft::resources& res,
                const cuvs::neighbors::vpq_params& params,

cpp/tests/preprocessing/product_quantization.cu

@@ -147,7 +147,10 @@ class ProductQuantizationTest : public ::testing::TestWithParam<ProductQuantizat
     auto orig_data = raft::make_device_matrix_view<T, int64_t>(dataset_.data_handle(), n_take, dim);
 
     std::optional<raft::device_vector_view<const uint32_t, int64_t>> vq_labels_view = std::nullopt;
-    if (vq_labels) { vq_labels_view = raft::make_const_mdspan(vq_labels.value()); }
+    if (vq_labels) {
+      vq_labels_view = raft::make_device_vector_view<const uint32_t, int64_t>(
+        vq_labels.value().data_handle(), static_cast<int64_t>(n_take));
+    }
     inverse_transform(handle,
                       quantizer,
                       raft::device_matrix_view<const uint8_t, int64_t>(
@@ -242,7 +245,11 @@ class ProductQuantizationTest : public ::testing::TestWithParam<ProductQuantizat
 
   void testViewQuantizer()
   {
-    params config{params_.pq_bits, params_.pq_dim, true, false};
+    params config;
+    config.pq_bits       = params_.pq_bits;
+    config.pq_dim        = params_.pq_dim;
+    config.use_subspaces = true;
+    config.use_vq        = false;
 
     if ((n_samples_ < (1 << params_.pq_bits)) || (n_features_ % params_.pq_dim != 0) ||
         (static_cast<uint32_t>(n_samples_) < params_.n_vq_centers)) {