To solve the deadlock problem of tasks that the interdependence between tasks fails to consider during the course of resource assignment and task scheduling based on the heuristics algorithm, an improved ant colony sy...To solve the deadlock problem of tasks that the interdependence between tasks fails to consider during the course of resource assignment and task scheduling based on the heuristics algorithm, an improved ant colony system （ACS） based algorithm is proposed. First, how to map the resource assignment and task scheduling （RATS） problem into the optimization selection problem of task resource assignment graph （TRAG） and to add the semaphore mechanism in the optimal TRAG to solve deadlocks are explained. Secondly, how to utilize the grid pheromone system model to realize the algorithm based on ACS is explicated. This refers to the construction of TRAG by the random selection of appropriate resources for each task by the user agent and the optimization of TRAG through the positive feedback and distributed parallel computing mechanism of the ACS. Simulation results show that the proposed algorithm is effective and efficient in solving the deadlock problem.展开更多
Communication security involves all aspects of the country and society,and financial security is of top priority.Through strong supervision and strong technical means,a“semaphore”file exchange station is established...Communication security involves all aspects of the country and society,and financial security is of top priority.Through strong supervision and strong technical means,a“semaphore”file exchange station is established.The data transmission system is composed of a sending server,a receiving server,and a“semaphore”communication box.Physical connections between internal and external networks are eliminated to achieve the purpose of“physical isolation”and“secure file transfer”.展开更多
文摘To solve the deadlock problem of tasks that the interdependence between tasks fails to consider during the course of resource assignment and task scheduling based on the heuristics algorithm, an improved ant colony system （ACS） based algorithm is proposed. First, how to map the resource assignment and task scheduling （RATS） problem into the optimization selection problem of task resource assignment graph （TRAG） and to add the semaphore mechanism in the optimal TRAG to solve deadlocks are explained. Secondly, how to utilize the grid pheromone system model to realize the algorithm based on ACS is explicated. This refers to the construction of TRAG by the random selection of appropriate resources for each task by the user agent and the optimization of TRAG through the positive feedback and distributed parallel computing mechanism of the ACS. Simulation results show that the proposed algorithm is effective and efficient in solving the deadlock problem.
文摘Communication security involves all aspects of the country and society,and financial security is of top priority.Through strong supervision and strong technical means,a“semaphore”file exchange station is established.The data transmission system is composed of a sending server,a receiving server,and a“semaphore”communication box.Physical connections between internal and external networks are eliminated to achieve the purpose of“physical isolation”and“secure file transfer”.
