1. A computer system with simulation computational resources including a plurality of computers with a processor and a memory and configured to execute a simulation, comprising: a dynamic computational resource distribution unit which is connected to a terminal via a network, receives a request to create a simulation task from the terminal, creates a simulation configuration included in the simulation task based on the request from the terminal and issues a simulation included in the simulation configuration to the simulation computational resources; a storage unit for storing the request to create the simulation task received from the terminal; and a history monitoring unit for collecting an operation history for the simulation task received from the terminal and loads of the simulation computational resources required to execute the simulation task for each user of the terminal; wherein: the simulation computational resources includes a plurality of different types of simulators in advance; the dynamic computational resource distribution unit records elements of simulations executed by the simulation computational resources, applies recorded elements of past simulations to the received simulation task and allocates the simulation computational resources for executing simulations to which the elements are applied based on the loads of the simulation computational resources collected by the history monitoring unit; the dynamic computational resource distribution system includes: a simulation task input unit for creating the simulation configuration meeting the request to create the simulation task received from the terminal; a simulation task creating unit for creating a collection of simulations to be allocated to the simulation computational resources from the created simulation configuration; a tool/model database for recording simulation models used in the simulations to be allocated to the simulation computational resources; a computational resource management database for managing a usage status of the simulation computational resources; and a simulation configuration history database for recording the executed simulation configuration; and the simulation task creating unit converts the simulation configuration created by the task input unit into a computational process executable in the simulation computational resources based on information of the simulation configuration history database, the tool/model database and the computational resource management database.