The deepest nodes in the search tree are handled by the slave search engines which usually do 4-ply alpha-beta searches. When conducting a search, the search tree near the root position is processed on the host workstation, and includes selective search extension algorithms such as singular extensions. (This is about 1/10th of the projected speed of the Deep Blue single-processor currently in fabrication.) The 14-processor Deep Thought 2 typically searches between 3 and 5 million positions per second. Each Deep Thought 2 processor searches about 500,000 positions per second standalone, or about 400,000 positions per second as a slave processor. Each processor contains a VLSI chip for move generation, as well as additional hardware for search and evaluation. Description given in 1995 from the ICGA site :ĭeep Blue Prototype consists of an IBM RS/6000 workstation with 14 chess search engines as slave processors.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |