Reorder header groups + remove unused counter allocator

Author: PointKernel

include/cuco/detail/dynamic_map.inl

@@ -30,8 +30,7 @@ dynamic_map<Key, Value, Scope, Allocator>::dynamic_map(
     capacity_(initial_capacity),
     min_insert_size_(1E4),
     max_load_factor_(0.60),
-    alloc_{alloc},
-    counter_allocator_{alloc}
+    alloc_{alloc}
 {
   submaps_.push_back(std::make_unique<static_map<Key, Value, Scope, Allocator>>(
     initial_capacity,
@@ -59,8 +58,7 @@ dynamic_map<Key, Value, Scope, Allocator>::dynamic_map(
     capacity_(initial_capacity),
     min_insert_size_(1E4),
     max_load_factor_(0.60),
-    alloc_{alloc},
-    counter_allocator_{alloc}
+    alloc_{alloc}
 {
   CUCO_RUNTIME_EXPECTS(empty_key_sentinel_ != erased_key_sentinel_,
                        "The empty key sentinel and erased key sentinel cannot be the same value.");

include/cuco/dynamic_map.cuh

@@ -21,10 +21,12 @@
 #include <cuco/hash_functions.cuh>
 #include <cuco/sentinel.cuh>
 #include <cuco/static_map.cuh>
-#include <cuda/std/atomic>
+
 #include <thrust/device_vector.h>
 #include <thrust/functional.h>
 
+#include <cuda/std/atomic>
+
 #include <cstddef>
 #include <memory>
 #include <type_traits>
@@ -109,8 +111,6 @@ class dynamic_map {
   using mutable_view_type =
     typename static_map<Key, Value, Scope>::device_mutable_view;  ///< Type for submap mutable
                                                                   ///< device view
-  using counter_allocator_type = typename std::allocator_traits<Allocator>::rebind_alloc<
-    atomic_ctr_type>;  ///< Type of the allocator to (de)allocate atomic counters
 
   dynamic_map(dynamic_map const&) = delete;
   dynamic_map(dynamic_map&&)      = delete;
@@ -357,7 +357,6 @@ class dynamic_map {
   thrust::device_vector<atomic_ctr_type*>
     submap_num_successes_;  ///< Number of successfully erased keys for each submap
   Allocator alloc_{};       ///< Allocator passed to submaps to allocate their device storage
-  counter_allocator_type counter_allocator_{};  ///< Allocator used to allocate `num_successes_`
 };
 }  // namespace cuco