[IEEE 2017 IEEE 19th International Conference on High Performance Computing and Communications; IEEE 15th International Conference on Smart City; IEEE 3rd International Conference on Data Science and Systems (HPCC/SmartCity/DSS) - Bangkok, Thailand (2017.12.18-2017.12.20)] 2017 IEEE 19th International Conference on High Performance Computing and Communications; IEEE 15th International Conference on Smart City; IEEE 3rd International Conference on Data Science and Systems (HPCC/SmartCity/DSS) - Speeding up Coarse Grain Multicomputer Based Parallel Algorithm for Optimal Binary Search Tree by Minimizing Idleness of Processors