A method for generating a simulator of a target system includes parsing data defining operational components and component parameters, searching for and obtaining model code definitions within a library database, customizing the model code definitions based on the component parameters, constructing a system model, and generating solver code based the customized model code definitions of the target system. The solver code may be indicative of input and output operation of the target system. The method may also include concatenating the system model with the solver code to form a solver function definition for the target system, and converting the solver function definition into an field programmable gate array (FPGA) core or central processing unit (CPU) core for execution on a simulation device for the target system.