| Título: | An analysis of speculative search for asynchronous parallel alpha-beta search / |
| Autores: | Waldorf, Mahlon R. |
| Fecha: | 2000 |
| Publicador: | McGill University |
| Fuente: |
Ver documento |
| Tipo: | Electronic Thesis or Dissertation |
| Tema: | Computer Science. |
| Descripción: |
In the area of computer game playing, much effort has been spent to increase the efficiency of game-tree search. Parallel alphabeta game tree search is a powerful tool in this endeavor. Most parallel alphabeta algorithms involve some form of synchronization of processors during a search, generally resulting in a waste of time. Some algorithms, however, such as APHID, are asynchronous, with all processors working essentially independently during a search. Asynchronous algorithms are not necessarily limited to a search horizon in the way that synchronous algorithms are. Search beyond this horizon has been called speculative search. A series of experiments were conducted to determine how much value information from speculative search contributes to the overall search. Compared to a synchronized parallel alphabeta search, speculative search was found to contribute to the principle variation score up to 60% of the time and results in a different move selection up to 25% of the time on a nine processor network. |
| Idioma: | en |
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