Reflecting internal memory net dynamic internal memory management method based on distribution simulation

Abstract

The invention discloses a dynamic memory management method based on a distributed simulation reflective memory network. The method uses an object-oriented means for carrying out package to lower layer driving functions of a VMIC reflective memory for two times, thereby realizing the object-oriented memory dynamic distribution and reading and writing and solving the problems of safety, reusability and convenience in the process of communication flexible bus development; the packaging executes the following tasks: distributing memory space to federation for communication interaction of the federation when the simulation starts; members of the federation sequentially participating in the simulation during simulation, distributing memory space for each member and distributing object instance / interactive instance memory space to the members with communication requirements according to simulation scenario; releasing the memory spaces for the object instance / interactive instance after the reading and the writing operations during communication are completed; after any member is withdrawn from the simulation releasing the memory space for the member; and releasing the memory spaces for the federation after the simulation is completed and the federation is withdrawn.

Description

technical field [0001] The invention relates to the technical field of computer distribution simulation, in particular to a dynamic memory management method of a reflective memory network applied in industrial distribution simulation. Background technique [0002] With the continuous improvement of the complexity and modernization of modern industrial systems, its design, development and maintenance are increasingly dependent on advanced testing, testing and testing methods. In order to ensure the real-time communication in the distributed real-time distributed simulation with hardware-in-the-loop equipment, the VMIC reflective memory network is used for data and message transmission. The VMIC-5565 reflective memory card provides real-time communication methods such as shared memory and interrupts, but this method allows each node to directly read and write the onboard memory, which brings about the problem that data security is difficult to guarantee. Because the tradition...

AI Technical Summary

Problems solved by technology

The VMIC-5565 reflective memory card provides real-time communication methods such as shared memory and interrupts, but this method allows each node to directly read and write onboard memory, which brings the problem of data security that is difficult to guarantee

Because the traditional on-board memory is allocated sequentially, the freed memory cannot be allocated again and memory fragmentation increases, resulting in a decrease in system performance and an increase in unstable factors

Due to the many and complicated functions provided by VMIC, it is difficult for developers to master, especially for technicians engaged in virtual experiments and simulation fields.

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