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2004/11/26

報告. 2004/11/26. 概観. 具体的なアプリに向けて 完了 IndexSet シリアライズ メッセージリレーの実験 オブジェクトの管理・ RMI 実装中 マイグレーション アプリ書く. RMI の実験. 簡単なメソッドで実験. [0-10)-[30-40). [10-20)-[40-50). [20-30)-[50-60). 分散集合 1. [0-10)-[30-40). [10-20)-[40-50). [20-30)-[50-60). 分散集合 2. (method_a, [30-40), “hoge”). (method_a

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2004/11/26

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  1. 報告 2004/11/26

  2. 概観 • 具体的なアプリに向けて • 完了 • IndexSet • シリアライズ • メッセージリレーの実験 • オブジェクトの管理・RMI • 実装中 • マイグレーション • アプリ書く

  3. RMIの実験 • 簡単なメソッドで実験 [0-10)-[30-40) [10-20)-[40-50) [20-30)-[50-60) 分散集合1 [0-10)-[30-40) [10-20)-[40-50) [20-30)-[50-60) 分散集合2 (method_a, [30-40), “hoge”) (method_a [15-20)-[40-50) , “hoge”) (method_a, [20-30)-[50-55) , “hoge”) send(分散集合2, method_a [15-55), “hoge”)

  4. マイグレーションの実験(予定) • 個々の断片に明示的に”退避”を指令 [0-10)-[30-40) [10-20)-[40-50) [20-30)-[50-60) 分散集合1 [0-10)-[30-40) [10-20)-[40-50) [20-30)-[50-60) 分散集合2 leave()

  5. main() • int npe = 3; • int pn = get_pn(); • int io_lower = (int)(vp_segment_width * pn / npe); • int io_upper = (int)(vp_segment_width * (pn + 1) / npe); • IndexSet * initial_is = new IndexSet(io_lower, io_upper); • InitialObject *io = new InitialObject(initial_is); • int lower, upper; lower = pn * 10; upper = (pn + 1) * 10; • DistributedArray *da = new DistributedArray(1, new IndexSet(lower, upper)); • DistributedArray *da2 = new DistributedArray(2, new IndexSet(lower, upper)); • pthread_t pth; • spawn_receiver(pth); • if(pn == 0){ • PackObject *po = new PackObject(); • po->pack_string("hello"); • rmi_send(1, new IndexSet(0, npe * 10), 0, po); • }

  6. 提供する関数 • void rmi_send(int, IndexSet *, method_kind_t, PackObject *); • void *receiver(void *); • void ro_assume_vps(int, ph_vp_t, ph_vp_t); • void register_fraction(int, RemoteObject *, IndexSet *); • class RemoteObject { • protected: • int object_id; • ph_vp_t vp_shift; • IndexSet *handle_is; • public: • void send(IndexSet *is, method_kind_t method_kind, PackObject *po) • { rmi_send(object_id, is, method_kind, po);} • virtual void recv(IndexSet *, method_kind_t, UnpackObject *)=0; • };

  7. クラス定義 • DistributedArray::DistributedArray(int _object_id, IndexSet *_handle_is){ • object_id = _object_id; • handle_is = _handle_is; • size = handle_is->size(); • A = new double[size]; • register_fraction(object_id, this, handle_is); • IndexSet *is0 = handle_is; • while(is0 != NULL){ • ro_assume_vps(object_id, is0->lower, is0->upper); • is0 = is0->next; • } • } • void DistributedArray::recv(IndexSet *is, method_kind_t method_kind, UnpackObject *upo){ • switch(method_kind){ • case 0: • method_a(is, upo); • break; • } • }

  8. 今後 • マイグレーション • アプリの記述 • できれば11月中

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