yukon: scaffold out a "Localizer" class which will do all the localization work

Author: nickwanninger

runtime/CMakeLists.txt

@@ -55,6 +55,7 @@ set(CORE_SOURCES
   core/HeapPage.cpp
   core/SizedPage.cpp
   core/LocalityPage.cpp
+  core/Localizer.cpp
 
   core/Utils.cpp
 

runtime/core/Localizer.cpp

@@ -0,0 +1,23 @@
+
+/*
+ * This file is part of the Alaska Handle-Based Memory Management System
+ *
+ * Copyright (c) 2024, Nick Wanninger <ncw@u.northwestern.edu>
+ * Copyright (c) 2024, The Constellation Project
+ * All rights reserved.
+ *
+ * This is free software.  You are permitted to use, redistribute,
+ * and modify it as specified in the file "LICENSE".
+ */
+
+
+#include <alaska/Runtime.hpp>
+#include <alaska/Localizer.hpp>
+
+namespace alaska {
+
+
+  Localizer::Localizer(alaska::Configuration &config, alaska::Runtime &rt)
+      : rt(rt) {}
+  void Localizer::feed_hotness_data(size_t count, handle_id_t *handle_ids) {}
+}  // namespace alaska

runtime/core/Runtime.cpp

@@ -1,3 +1,4 @@
+
 /*
  * This file is part of the Alaska Handle-Based Memory Management System
  *
@@ -13,6 +14,7 @@
 #include <alaska/Runtime.hpp>
 #include <alaska/SizeClass.hpp>
 #include <alaska/BarrierManager.hpp>
+#include <alaska/Localizer.hpp>
 #include "alaska/alaska.hpp"
 #include "alaska/utils.h"
 #include <stdlib.h>
@@ -28,7 +30,8 @@ namespace alaska {
 
   Runtime::Runtime(alaska::Configuration config)
       : handle_table(config)
-      , heap(config) {
+      , heap(config)
+      , locality_manager(config, *this) {
     // Validate that there is not already a runtime (TODO: atomics?)
     ALASKA_ASSERT(g_runtime == nullptr, "Cannot create more than one runtime");
 

runtime/include/alaska/Localizer.hpp

@@ -0,0 +1,31 @@
+/*
+ * This file is part of the Alaska Handle-Based Memory Management System
+ *
+ * Copyright (c) 2024, Nick Wanninger <ncw@u.northwestern.edu>
+ * Copyright (c) 2024, The Constellation Project
+ * All rights reserved.
+ *
+ * This is free software.  You are permitted to use, redistribute,
+ * and modify it as specified in the file "LICENSE".
+ */
+
+#pragma once
+
+#include <alaska/alaska.hpp>
+#include <alaska/Configuration.hpp>
+
+namespace alaska {
+
+
+  // fwd decl
+  struct Runtime;
+
+
+  class Localizer {
+    alaska::Runtime &rt;
+
+   public:
+    Localizer(alaska::Configuration &config, alaska::Runtime &rt);
+    void feed_hotness_data(size_t count, handle_id_t *handle_ids);
+  };
+}  // namespace alaska

runtime/include/alaska/Runtime.hpp

@@ -18,6 +18,7 @@
 #include <alaska/alaska.hpp>
 #include <ck/set.h>
 #include <alaska/Configuration.hpp>
+#include <alaska/Localizer.hpp>
 
 namespace alaska {
   /**
@@ -52,6 +53,8 @@ namespace alaska {
     // This is defaulted to a "nop" manager which simply does nothing.
     alaska::BarrierManager *barrier_manager;
 
+    alaska::Localizer locality_manager;
+
 
     // Return the singleton instance of the Runtime if it has been allocated. Abort otherwise.
     static Runtime &get();

runtime/include/alaska/alaska.hpp

@@ -52,6 +52,8 @@ namespace alaska {
   extern long translation_hits;
   extern long translation_misses;
 
+  using handle_id_t = uint64_t;
+
 
   class Mapping {
    private:
@@ -125,7 +127,7 @@ namespace alaska {
       return out;
     }
 
-    ALASKA_INLINE uint64_t handle_id(void) const {
+    ALASKA_INLINE handle_id_t handle_id(void) const {
       uint64_t out = ((uint64_t)encode() << ALASKA_SIZE_BITS);
       return (out & ~(1UL << 63)) >> ALASKA_SIZE_BITS;
     }