Add large input test

tests/CMakeLists.txt

@@ -105,7 +105,8 @@ ConfigureTest(STATIC_MULTISET_TEST
     static_multiset/find_test.cu
     static_multiset/insert_test.cu
     static_multiset/for_each_test.cu
-    static_multiset/retrieve_test.cu)
+    static_multiset/retrieve_test.cu
+    static_multiset/large_input_test.cu)
 
 ###################################################################################################
 # - static_multimap tests -------------------------------------------------------------------------

tests/static_multiset/large_input_test.cu

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2024, NVIDIA CORPORATION.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <test_utils.hpp>
+
+#include <cuco/static_multiset.cuh>
+
+#include <thrust/device_vector.h>
+#include <thrust/functional.h>
+#include <thrust/iterator/counting_iterator.h>
+#include <thrust/iterator/discard_iterator.h>
+#include <thrust/sort.h>
+
+#include <catch2/catch_template_test_macros.hpp>
+
+#include <cstdint>
+#include <iterator>
+
+template <typename Set>
+void test_unique_sequence(Set& set, typename Set::value_type* res_begin, std::size_t num_keys)
+{
+  using Key = typename Set::key_type;
+
+  auto const keys_begin = thrust::counting_iterator<Key>(0);
+  auto const keys_end   = keys_begin + num_keys;
+
+  set.insert(keys_begin, keys_end);
+  REQUIRE(set.size() == num_keys);
+
+  SECTION("All inserted keys can be retrieved.")
+  {
+    auto const [_, res_end] =
+      set.retrieve(keys_begin, keys_end, thrust::make_discard_iterator(), res_begin);
+    REQUIRE(static_cast<std::size_t>(std::distance(res_begin, res_end)) == num_keys);
+
+    thrust::sort(res_begin, res_end);
+
+    REQUIRE(cuco::test::equal(res_begin, res_end, keys_begin, thrust::equal_to<Key>{}));
+  }
+}
+
+TEMPLATE_TEST_CASE_SIG(
+  "cuco::static_multiset large input test",
+  "",
+  ((typename Key, cuco::test::probe_sequence Probe, int CGSize), Key, Probe, CGSize),
+  (int64_t, cuco::test::probe_sequence::double_hashing, 1),
+  (int64_t, cuco::test::probe_sequence::double_hashing, 2))
+{
+  constexpr std::size_t num_keys{1'200'000'000};
+
+  using extent_type = cuco::extent<std::size_t>;
+  using probe       = cuco::double_hashing<CGSize, cuco::default_hash_function<Key>>;
+
+  try {
+    auto set = cuco::static_multiset{num_keys * 2, cuco::empty_key<Key>{-1}, {}, probe{}};
+
+    thrust::device_vector<Key> d_retrieved(num_keys);
+    test_unique_sequence(set, d_retrieved.data().get(), num_keys);
+  } catch (cuco::cuda_error&) {
+    SKIP("Out of memory");
+  } catch (std::bad_alloc&) {
+    SKIP("Out of memory");
+  }
+}