Drop (unused) HBW lock array

core/src/Kokkos_HBWSpace.hpp

@@ -31,41 +31,6 @@ namespace Kokkos {
 
 namespace Experimental {
 
-namespace Impl {
-
-/// \brief Initialize lock array for arbitrary size atomics.
-///
-/// Arbitrary atomics are implemented using a hash table of locks
-/// where the hash value is derived from the address of the
-/// object for which an atomic operation is performed.
-/// This function initializes the locks to zero (unset).
-void init_lock_array_hbw_space();
-
-/// \brief Acquire a lock for the address
-///
-/// This function tries to acquire the lock for the hash value derived
-/// from the provided ptr. If the lock is successfully acquired the
-/// function returns true. Otherwise it returns false.
-bool lock_address_hbw_space(void* ptr);
-
-/// \brief Release lock for the address
-///
-/// This function releases the lock for the hash value derived
-/// from the provided ptr. This function should only be called
-/// after previously successfully acquiring a lock with
-/// lock_address.
-void unlock_address_hbw_space(void* ptr);
-
-}  // namespace Impl
-
-}  // namespace Experimental
-
-}  // namespace Kokkos
-
-namespace Kokkos {
-
-namespace Experimental {
-
 /// \class HBWSpace
 /// \brief Memory management for host memory.
 ///

core/src/impl/Kokkos_HBWSpace.cpp

@@ -310,41 +310,4 @@ void SharedAllocationRecord<Kokkos::Experimental::HBWSpace, void>::
 }  // namespace Impl
 }  // namespace Kokkos
 
-/*--------------------------------------------------------------------------*/
-/*--------------------------------------------------------------------------*/
-
-namespace Kokkos {
-namespace Experimental {
-namespace {
-const unsigned HBW_SPACE_ATOMIC_MASK     = 0xFFFF;
-const unsigned HBW_SPACE_ATOMIC_XOR_MASK = 0x5A39;
-static int HBW_SPACE_ATOMIC_LOCKS[HBW_SPACE_ATOMIC_MASK + 1];
-}  // namespace
-
-namespace Impl {
-void init_lock_array_hbw_space() {
-  static int is_initialized = 0;
-  if (!is_initialized)
-    for (int i = 0; i < static_cast<int>(HBW_SPACE_ATOMIC_MASK + 1); i++)
-      HBW_SPACE_ATOMIC_LOCKS[i] = 0;
-}
-
-bool lock_address_hbw_space(void *ptr) {
-  return 0 == atomic_compare_exchange(
-                  &HBW_SPACE_ATOMIC_LOCKS[((size_t(ptr) >> 2) &
-                                           HBW_SPACE_ATOMIC_MASK) ^
-                                          HBW_SPACE_ATOMIC_XOR_MASK],
-                  0, 1);
-}
-
-void unlock_address_hbw_space(void *ptr) {
-  atomic_exchange(
-      &HBW_SPACE_ATOMIC_LOCKS[((size_t(ptr) >> 2) & HBW_SPACE_ATOMIC_MASK) ^
-                              HBW_SPACE_ATOMIC_XOR_MASK],
-      0);
-}
-
-}  // namespace Impl
-}  // namespace Experimental
-}  // namespace Kokkos
 #endif