6
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1 title: 分散フレームワークAliceのPC画面配信システムへの応用
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
2 author: 照屋のぞみ 河野真治
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
3 profile:琉球大学 工学部 情報工学科
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
4
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
5 # 研究目的(1/3)
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
6 * 当研究室が開発している並列分散フレームワークAliceではスケーラブルな分散プログラムを信頼性高く記述できる環境を実現する。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
7 * ここで言う信頼性とは定められた環境下で安定して仕様に従った動作を行うことを指す。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
8 * Aliceでは当研究室が提案しているデータを Data Segment、タスクを Code Segment という単位で分割して記述するプログラミング手法を採用している。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
9
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
10 # 研究目的(2/3)
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
11 * Aliceでは、処理をComputationとMetaComputationに階層化し、コアな仕様と複雑な例外処理に分離する。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
12 * 分散環境構築などの複雑な処理はAliceがMeta Computationとして提供する
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
13 * 仕様を大きく変更することなくプログラムの挙動が変えられる
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
14 * 変更前の信頼性を保ったまま拡張可能にする
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
15
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
16 # 研究目的(3/3)
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
17 * 本研究では、 Alice上に実用的な分散アプリケーションが制作できることを示すために画面配信システムTreeVNCを構築する。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
18 * 構築するにあたり必要となった機能を洗い出しAliceのMeta Computationとして実装した。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
19 * もとのTreeVNCとの比較を行うことでMetaComputationの役割と有効性を示す。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
20
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
21
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
22 # Data Segment と Code Segment
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
23 * Aliceではデータを **Data Segment(DS)** 、タスクを **Code Segment(CS)** という単位に分割して依存関係を記述することでプログラミングを行う。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
24 * CSはInput DS(入力されるDS)とOutput DS(出力されるDS)を持つ。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
25 * CSはkeyで指定されたDSが揃うと実行されるという性質を持つ。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
26 ![opt](./images/dsandcs.svg){:width="60%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
27
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
28 # CodeSegmentの依存関係
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
29 * データの依存関係にないCSは並列実行される
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
30 * データの依存関係がある場合は Input DS が揃うと順に実行される
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
31 * DSはCSに専有されるためロックの記述を必要としない
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
32 ![opt](./images/dsandcs2.svg){:width="60%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
33
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
34 # Data Segment と CodeSegment
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
35 * AliceはJavaで実装されており、DSはJava-Object、CSはRunnableに相当する
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
36 * ユーザーが記述する際には CodeSegment.class を継承することでDSを操作するためのAPIを利用して依存関係を記述することができる。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
37 * DSはAliceが内部にもつデータベース(DS Manager)により管理されており、CSはDSに対応する一意のkeyを使ってDSを操作する。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
38
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
39 # Data Segment Manager
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
40 * DS の集合体であるデータベースを Alice では **DS Manager(DSM)** と呼ぶ。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
41 * DSM 内の DS には対になる String型のkey が存在し、 DSM 名と key を指定しすることで DS の保存、取得を行う。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
42 * keyに対して複数のDSを保存する際はFIFO的に処理される
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
43 ![opt](./images/KeyDS.svg){:width="50%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
44
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
45 # Data Segment Manager
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
46 * Local DSM … 各ノード固有のデータベース。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
47 * Remote DSM … 他のノードの Local DSM の proxy。接続しているノードの数だけ存在する。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
48 ![opt](./images/remote_datasegment.svg){:width="50%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
49
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
50 # Data Segment API
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
51 * DS の追加
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
52 * put(String managerKey, String key, Object val)
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
53 * update(String managerKey, String key, Object val) ※先頭DSを削除してからput
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
54 * DS の取得
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
55 * take(String managerKey, String key)
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
56 * peek(String managerKey, String key) ※DSMから削除されない
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
57
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
58 * take/peekは実際にはcreate()とsetKey()によって行われる
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
59 * create()でDSの受け皿を作っておき、setKey()にkeyをセットすることで Input DS を指定する
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
60
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
61 # Computation と Meta Computation
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
62 * Aliceでは、計算の本質的な処理をComputatin、Computationとは直接関係ないが別のレベルでそれを支える処理をMeta Computationとして分けて考える。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
63 * Alice のComputationは、keyによりDSを待ち合わせ、DSが揃ったCSを並列に実行する処理。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
64 * 分散トポロジーの構成、通信の切断・再接続時の処理やデータの表現形式の選択など、Computationを支えている処理。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
65
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
66 # Computation と Meta Computation
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
67 * DS/CSの接続の間にMeta Computationが実行されている
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
68 * AliceのMeta ComputationもCS/DSにより実現される
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
69 * Meta ComputationはCS の処理を支えるMeta CSとMeta CSに管理されるMeta DSに分けられる
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
70 ![opt](./pictures/MetaCSDS.svg){:width="70%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
71
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
72 # Computation と Meta Computation
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
73 * 分散環境構築などの複雑な処理をAliceがMeta Computationとして提供する
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
74 * プログラマは目的の処理だけ記述し通信部分などはMeta Computationを指定する
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
75
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
76 # TreeVNC
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
77 * Aliceを用いて実装する実用的な分散プログラムの例題
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
78 * 当研究室で開発したノードを木構造に配置して負荷分散を行う授業向け画面共有システム
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
79 * TightVNCがもとになっている
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
80 ![opt](./images/treeVNC.svg){:width="40%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
81
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
82 # AliceVNC
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
83 * 画面処理や分散処理が混在する複雑なTreeVNCも、Aliceを用いればTightVNCからの変更が少ない見通しの良い記述で構成可能
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
84 ![opt](./images/AliceVNC.svg){:width="50%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
85
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
86 # TreeVNCで必要な機能
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
87 TreeVNCのComputation(VNCサーバからデータを受け取り表示)を支える機能をMeta Computationとして実装する
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
88
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
89 * TreeTopologyの構成・管理(Topology Manager)
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
90 * ノード間通信の切断時・再接続時の処理(ClosedEventManager)
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
91 * ノードの接続状態確認(KeepAlive)
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
92 * 子ノードへのデータの転送
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
93 * データの圧縮
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
94
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
95 # Dynamic Topology Manager
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
96 * Topology Managerを立ちあげ、各ノードはTopology Managerに参加表明をし接続すべきノードの情報を要求する
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
97 ![opt](./pictures/tree1.svg){:width="60%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
98
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
99 # Dynamic Topology Manager
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
100 * Topology Managerは参加表明を受け取った順にTree構造になるよう接続情報を送る
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
101 ![opt](./pictures/tree2.svg){:width="60%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
102
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
103 # Dynamic Topology Manager
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
104 * 各ノードが受け取った情報をもとにRemote DSMを立ちあげ接続し合うことでTree構造が作られる
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
105 ![opt](./pictures/tree3.svg){:width="60%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
106
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
107 # Meta Computationの追加
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
108 * TreeVNCの数MByteの画面差分データを配信し続けるためデータを圧縮している
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
109 * 画面データを圧縮して送る → 解凍して画面表示 → 再圧縮して子ノードへ転送
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
110 * 再圧縮オーバーヘッドなしにゼロコピー転送する機能が必要
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
111 * 圧縮のMeta Computationと転送のMeta Computationを追加した
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
112
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
113 # 転送機能の追加
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
114 * AliceではInputDSをReceiverに受け取ったあと、Receiverから任意の型で取り出し、操作してOutputDSとして出力する(コピーする)
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
115 * TreeVNCのように受け取ったデータをそのまま転送したいときには無駄
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
116 * Input DSをそのままOutput DSとしてコピーせず転送できる **flipメソッド** を追加。put/updateと同じように扱える。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
117 flip(String managerKey, String key, Receiver receiver)
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
118
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
119 # 圧縮表現(Meta DS)の追加
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
120 * DSを複数作るのではなく、1つのDSに対しMeta DSとして以下の表現を同時に持たせる
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
121
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
122 <table style="border:none;">
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
123 <tr><td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
124 1. 一般的なJavaのオブジェクト<br>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
125 LocalDSMにputしたときの形式 <br>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
126 2. MessagePackでシリアライズ化されたバイナリオブジェクト <br>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
127 RemoteDSMにputしたときの形式 <br>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
128 3. 2をさらに圧縮したバイナリオブジェクト <br>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
129 今回追加した形式 <br>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
130 </td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
131 <td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
132 <img src="./pictures/compressDS.svg" width="90%">
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
133 </td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
134 </tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
135 </table>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
136
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
137
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
138 # MessagePackとは
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
139 * Sadayuki Furuhashiが開発したシリアライズのための機能をまとめたオープンソースライブラリ。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
140 * シリアライズ/デシリアライズを高速に行うことができ、整数、浮動小数点数、Boolean、文字列、配列、連想配列、nilをバイト列にシリアライズできる。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
141 * JSONのようにプログラミング言語に依存しないデータの表現形式として使用できる。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
142 * AliceではJavaオブジェクトへの対応のためにJavassistも用いている。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
143
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
144 # 圧縮表現を扱うDSMとAPIの追加
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
145 * Local と Remote それぞれに圧縮表現を扱う Compressed DSM を追加
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
146 * DSを圧縮したい場合は指定する DSM を Compressed DSM に変える
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
147 * 圧縮するコードとしないコードで変更が少ない
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
148 ```java
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
149 put("Remote", "Key", val);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
150 put("compressedRemote", "Key", val);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
151 ```
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
152
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
153 # 圧縮表現がオンデマンドに作られる
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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154 * NodeAでNodeBのcompressed RemoteDSM に対してDSをput
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
155 ![opt](./pictures/flow1.svg){:width="80%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
156
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
157 # 圧縮表現がオンデマンドに作られる
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
158 * DS が圧縮表現を持っていなければCompressed DSM内部で圧縮表現を生成してput
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
159 ![opt](./pictures/flow2.svg){:width="80%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
160
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
161 # 圧縮表現がオンデマンドに作られる
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
162 * RemoteDSMがAliceの送信パケットをNodeBのLocalDSMに送る
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
163 ![opt](./pictures/flow3.svg){:width="80%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
164
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
165 # 圧縮表現がオンデマンドに作られる
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
166 * NodeBのLocalDSMでは圧縮表現のみのDSとして保存する
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
167 ![opt](./pictures/flow4.svg){:width="80%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
168
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
169 # 圧縮表現がオンデマンドに作られる
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
170 * setKey()でtake/peekで呼ばれたらReceiverにDSが渡される
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
171 ![opt](./pictures/flow5.svg){:width="80%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
172
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
173 # 圧縮表現がオンデマンドに作られる
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
174 * castメソッドである **asClass()** が解凍・デシリアライズされた表現を作って渡す
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
175 ![opt](./pictures/flow6.svg){:width="80%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
176
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
177 # 圧縮表現がオンデマンドに作られる
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
178 * DS はオブジェクト表現と圧縮表現を同時にもつため、TreeVNCでは受け取った画面データを解凍した後、転送のためにコピーや再圧縮をすることはない。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
179 * 複数表現は必要最低限にしか作られない。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
180 * 一つのKeyに対し様々な表現のDSが対応するが、asClass()によってユーザーは送られてくるDSの表現を気にせず扱える。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
181
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
182 # Meta Computationの評価
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
183 TreeVNCとAliceVNCを比較した
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
184
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
185 * 性能比較
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
186 各ノードへのメッセージの伝達速度を比較
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
187 同等の性能が実現できたか
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
188 * コード比較
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
189 コード量・コード複雑度を比較
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
190 シンプルな記述で仕様の変更が抑えられているか
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
191
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
192 # 性能比較 - 実験内容
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
193 * 木の段数ごとにメッセージの到達にどれぐらい時間がかかっているかを計測
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
194 * 講義内で学生に協力してもらい、最大 17 名の接続があった
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
195 ![](./pictures/delay.svg){:width="50%"}![](./pictures/delay2.svg){:width="50%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
196
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
197 # 性能比較 - 実験結果
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
198 * 3段目の計測結果
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
199 * 同じ傾向から同等の処理性能があることがわかった
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
200
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
201 <table style="border:none;">
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
202 <tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
203 <td><img src="./pictures/TreeVNC_depth3.svg" width="80%"></td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
204 <td><img src="./pictures/AliceVNC_compress_depth3.svg" width="80%"></td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
205 </tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
206 <tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
207 <td align="center">TreeVNC</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
208 <td align="center">AliceVNC</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
209 </tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
210 </table>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
211
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
212
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
213 # コード量比較
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
214 * TightVNCを含む全体の行数・単語数はAliceVNCのほうが少ない
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
215 * コードの増加量ではTreeVNCに比べ75%仕様の変更が抑えられている
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
216
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
217 <table style="border-collapse: collapse;border:1px solid #000000;">
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
218 <th style="border:1px solid #000000;padding:5px 15px 5px 15px;"></th>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
219 <th style="border:1px solid #000000;padding:5px 15px 5px 15px;"> 行数 </th>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
220 <th style="border:1px solid #000000;padding:5px 15px 5px 15px;">単語数</th>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
221 <th style="border:1px solid #000000;padding:5px 15px 5px 15px;">TightVNCからの変更行数</th>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
222 <tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
223 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;"> TreeVNC </td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
224 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">19502</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
225 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">73646</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
226 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">7351</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
227 </tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
228 <tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
229 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;"> AliceVNC </td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
230 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">14647</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
231 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">59217</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
232 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">1129</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
233 </tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
234 <tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
235 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;"> 減少率 (%)</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
236 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">25</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
237 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">20</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
238 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">75</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
239 </tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
240 </table>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
241
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
242 # コード複雑度比較
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
243 * 循環的複雑度を用いる
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
244 コード内の線形独立な経路の数。if や forが多いほど複雑度が高い。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
245 * 計測にはIntelliJのプラグイン「MetricsReloaded」を使用
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
246
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
247 <table style="border-collapse: collapse;border:1px solid #000000;">
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
248 <th style="border:1px solid #000000;padding:5px 15px 5px 15px;"></th>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
249 <th style="border:1px solid #000000;padding:5px 15px 5px 15px;"> 平均値 </th>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
250 <th style="border:1px solid #000000;padding:5px 15px 5px 15px;">最高値</th>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
251 <tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
252 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;"> TightVNC </td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
253 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">13.63</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
254 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">97</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
255 </tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
256 <tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
257 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;"> TreeVNC </td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
258 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">15.33</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
259 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">141</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
260 </tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
261 <tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
262 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;"> AliceVNC</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
263 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">10.95</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
264 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">99</td>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
265 </tr>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
266 </table>
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
267
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
268
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
269 * AliceVNCのほうがTreeVNCに比べ複雑度が低い
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
270 * TreeVNC で最も複雑度が高いTreeRFBProto.classはデータの待ち合わせ処理や通信処理が入り組んだ複雑なコード
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
271 * AliceVNCで最も複雑度が高いSwingViewerWindow.classは、TightVNCから変更がほとんどないため、AliceVNCの持っている複雑度はTightVNCが元来持っていた複雑度
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
272
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
273
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
274 # Meta Computationの評価結果
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
275 * AliceVNCはコードの修正量・複雑度共に低く抑えながらTreeVNC と同等の性能を持つ分散アプリケーションを記述する能力があった
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
276
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
277 # Aliceと他言語等との比較(1) - Erlang
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
278 * 共通点
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
279 * タスクをプロセスと呼ばれるメモリを共有しないスレッドに分割
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
280 * 共有メモリにアクセスするためのメモリロックの仕組みを必要としない
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
281
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
282 * 相違点
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
283 * 複数のデータの待ち合わせ処理はユーザーが書く
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
284 * Topologyの構成等はユーザーが書く
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
285
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
286 # Aliceと他言語等との比較(2) - Akka
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
287 * 共通点
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
288 * tell/ask が Alice の put/take に対応
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
289 * 通信部分等を子アクターで分離し階層化
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
290
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
291 * 相違点
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
292 * データに名前がついていないので何が来るかわかりづらい
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
293 * Actorごとに受け取ったデータの判別処理をユーザーが書く
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
294 * Topologyの構成はユーザーが書かないといけない
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
295 * 転送などのオーバーヘッドを考慮したメタプロトコル(Meta DS)が存在しない
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
296
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
297 # まとめ
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
298 * Alice が実用的なアプリケーションを記述するための Meta Computation として、データに多態性を持たせる圧縮機能やゼロコピー転送の機能を実装した。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
299 * TreeVNCをAlice上で実装し比較を行った結果、シンプルな記述でTreeVNCの基本機能を実現でき、同等の性能を出すことに成功した
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
300 * AliceのMeta Computationが信頼性の高い実 用的な分散アプリケーションの構築に有用であることが確認された
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
301
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
302 # 今後の課題
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
303 * APIの再設計
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
304 * put/updateに対しtake/peekがcreate()・setKey()の操作はわかりにくい
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
305 * DSの型情報のマネジメント
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
306 * 型情報がないのでpeek/takeする際にわかりにくい
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
307 * セキュリティをサポートしていない
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
308 * 圧縮と同様の手法で暗号形式のデータ表現を扱えるように拡張可能
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
309
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
310 # 今後の課題
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
311 * TreeVNCでは拡張が困難であった別ネットワーク間の通信もTopology Manager を用いれば容易に拡張できると考えられる
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
312 ![opt](./pictures/overNAT.svg){:width="60%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
313
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
314 # Dynamic Topology Manager
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
315 ![](./pictures/tree1.svg){:width="33%"}![](./pictures/tree2.svg){:width="33%"}![](./pictures/tree3.svg){:width="33%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
316
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
317
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
318 # CodeSegment の 例
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
319 * RemoteDSM から DSをtakeし、LocalDSM に put を10回繰り返す
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
320 ![opt](./pictures/remoteTest.svg){:width="70%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
321
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
322 # CodeSegment の 例
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
323 * RemoteDSM から DSをtakeし、LocalDSM に put を10回繰り返す
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
324 * CSはInputDSを持たないStartCSからはじまる
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
325 ![opt](./pictures/remoteTest2.svg){:width="70%"}
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
326
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
327 # StartCodeSegmentの例
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
328 ```java
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
329 public class RemoteStartCodeSegment extends CodeSegment {
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
330
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
331 @Override
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
332 public void run() {
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
333 RemoteIncrement cs = new RemoteIncrement();//CSを生成
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
334 ods.put("local", "num", 0);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
335 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
336
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
337 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
338 ```
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
339
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
340 # StartCodeSegmentの例
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
341 ```java
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
342 public class RemoteStartCodeSegment extends CodeSegment {
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
343
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
344 @Override
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
345 public void run() {
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
346 RemoteIncrement cs = new RemoteIncrement();
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
347 ods.put("local", "num", 0);//DSをLocalDSMにput
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
348 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
349
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
350 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
351 ```
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
352
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
353 # CodeSegment の 例
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
354 ```java
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
355 public class RemoteIncrement extends CodeSegment {
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
356
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
357 public Receiver num = ids.create(CommandType.TAKE);//DSの受け皿を作る
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
358
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
359 public RemoteIncrement(){
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
360 num.setKey("remote", "num");
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
361 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
362
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
363 @Override
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
364 public void run() {
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
365 int n = num.asClass(Integer.class);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
366 if (n == 10) System.exit(0);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
367 RemoteIncrement cs = new RemoteIncrement();
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
368 ods.put("local", "num", ++n);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
369 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
370
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
371 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
372 ```
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
373
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
374 # CodeSegment の 例
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
375 ```java
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
376 public class RemoteIncrement extends CodeSegment {
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
377
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
378 public Receiver num = ids.create(CommandType.TAKE);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
379
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
380 public RemoteIncrement(){
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
381 num.setKey("remote", "num");//CSにInputDSをセット。待ち合わせが発生。
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
382 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
383
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
384 @Override
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
385 public void run() {
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
386 int n = num.asClass(Integer.class);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
387 if (n == 10) System.exit(0);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
388 RemoteIncrement cs = new RemoteIncrement();
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
389 ods.put("local", "num", ++n);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
390 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
391
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
392 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
393 ```
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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394
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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395 # CodeSegment の 例
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
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396 ```java
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
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397 public class RemoteIncrement extends CodeSegment {
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
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398
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
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399 public Receiver num = ids.create(CommandType.TAKE);
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
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400
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
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401 public RemoteIncrement(){
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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402 num.setKey("remote", "num");
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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403 }
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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404
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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405 @Override
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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406 public void run() {
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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407 int n = num.asClass(Integer.class);//InputDSをキャストして取得
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
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408 if (n == 10) System.exit(0);
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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409 RemoteIncrement cs = new RemoteIncrement();
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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410 ods.put("local", "num", ++n);
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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411 }
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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412
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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413 }
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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414 ```
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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415
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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416 # CodeSegment の 例
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
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417 ```java
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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418 public class RemoteIncrement extends CodeSegment {
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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419
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
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420 public Receiver num = ids.create(CommandType.TAKE);
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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421
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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422 public RemoteIncrement(){
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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423 num.setKey("remote", "num");
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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424 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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425
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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426 @Override
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
427 public void run() {
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
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428 int n = num.asClass(Integer.class);
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
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429 if (n == 10) System.exit(0);//num=10なら終了
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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430 RemoteIncrement cs = new RemoteIncrement();
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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431 ods.put("local", "num", ++n);
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Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
432 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
433
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
434 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
435
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
436 ```
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
437
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
438
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
439 # CodeSegment の 例
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
440 ```java
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
441 public class RemoteIncrement extends CodeSegment {
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
442
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
443 public Receiver num = ids.create(CommandType.TAKE);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
444
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
445 public RemoteIncrement(){
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
446 num.setKey("remote", "num");
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
447 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
448
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
449 @Override
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
450 public void run() {
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
451 int n = num.asClass(Integer.class);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
452 if (n == 10) System.exit(0);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
453 RemoteIncrement cs = new RemoteIncrement();//次のCSを生成
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
454 ods.put("local", "num", ++n);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
455 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
456
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
457 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
458 ```
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
459
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
460 # CodeSegment の 例
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
461 ```java
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
462 public class RemoteIncrement extends CodeSegment {
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
463
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
464 public Receiver num = ids.create(CommandType.TAKE);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
465
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
466 public RemoteIncrement(){
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
467 num.setKey("remote", "num");
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
468 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
469
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
470 @Override
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
471 public void run() {
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
472 int n = num.asClass(Integer.class);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
473 if (n == 10) System.exit(0);
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
474 RemoteIncrement cs = new RemoteIncrement();
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
475 ods.put("local", "num", ++n);//インクリメントしたDSをput
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
476 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
477
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
478 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
479 ```
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
480
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
481
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
482 <style type="text/css">
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
483 <!--
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
484 *{
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
485 font:nomal 100% 'PT Sans';
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
486 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
487
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
488 ul > li{
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
489 list-style-type:disc;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
490 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
491
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
492 .slide h1{
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
493 text-align:left;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
494 color:#777777;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
495 font:bold 40px/1.13 'PT Sans', sans-serif;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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|
496 margin-bottom: 50px;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
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497 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
498
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
499 div#slide1 h1{
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
500 text-align:left;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
501 color:#777777;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
502 font:bold 60px 'PT Sans', sans-serif;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
503 margin-bottom: 50px;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
504 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
505
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
506 pre > code{
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
507 font-family:'Droid Sans Mono', 'Courier New', monospace;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
508 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
509
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
510 img[alt="opt"]{
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
511 display: block;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
512 margin-left: auto;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
513 margin-right: auto;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
514 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
515
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
516 img[alt="right"]{
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
517 margin-right: 0;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
518 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
519
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
520 table {
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
521 margin-left: auto;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
522 margin-right: auto;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
523 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
524
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
525 th {
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
526 font-size: 120%;
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
527 }
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
528 -->
|
Nozomi Teruya <e125769@ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
529 </style>
|