Scheduling method and device for parallel simulation of multiple models
A scheduling method and model technology, applied in simulators, control/regulation systems, instruments, etc., can solve the problems of data time deviation, no scheduling rules, and data cannot be transmitted normally, and achieve the effect of reasonable scheduling and improving accuracy.
Active Publication Date: 2017-10-27
BEIJING RUNKE GENERAL TECH
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Problems solved by technology
[0003] In the existing technology and in use, each model is scheduled separately, and there is no unified scheduling rule. Often, due to improper model scheduling settings, data cannot be transmitted normally between terminals during the simulation process, or there is a problem with the transmitted data, or Inaccurate data delivery time
For example, if there are multiple simulation models in the entire simulation system, and the step size of each simulation model is different, if the configuration is improper in the model scheduling configuration, the time of the data information received at a certain moment will be wrong, or the time of the specified time will be wrong. If the specified data is not received, if the model scheduling is unreasonable, there will be a large time deviation in the received data
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[0051] The second embodiment provides a scheduling method for parallel simulation of multiple models. This embodiment applies the scheduling method for parallel simulation of multiple models provided in the first embodiment, and takes the configuration of three models as an example to describe in detail the scheduling method for multiple parallel simulations. Scheduling of a model.
[0052] First, determine that the multiple models that need to be scheduled are three models, namely model 0, model 1, and model 2, and bind these three models to different CPUs.
[0053] Then, set the scheduling period of each of the three models, the scheduling period of model 0 is 10ms, the scheduling period of model 1 is 20ms, and the scheduling period of model 3 is 40ms. Calculate the greatest common divisor of the scheduling period of these three models is 10ms, the least common multiple is 40ms, then the total number of frames is 4. The first parameter of model 0 is 1, the first parameter o...
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The invention discloses a scheduling method and device for parallel simulation of multiple models. The method includes: setting the scheduling period of each model in the plurality of models; calculating the greatest common divisor and the least common multiple of the scheduling periods of all the models in the plurality of models; calculating the relationship between the least common multiple and the greatest common divisor The quotient of , as the total number of frames; the scheduling period of each model in the multiple models is respectively quotiented on the greatest common divisor to obtain the first parameter of each model; from the first frame to the last frame, respectively Use the frame sequence number of the current frame to perform a remainder calculation on the first parameter of each model, and if the result is 0, put the information of the corresponding model into the current frame. The invention realizes the reasonable scheduling of multiple models of parallel simulation, and realizes the real-time simulation function of data.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of control simulation, and in particular to a scheduling method and device for parallel simulation of multiple models. Background technique [0002] Simulation model scheduling is widely used in electronic networking systems in aviation, aerospace, and military fields. In the avionics system, the scheduling of multiple simulation models determines the correctness of data and the accuracy of data transmission time in the entire simulation process. [0003] In the existing technology and in use, each model is scheduled separately, and there is no unified scheduling rule. Often, due to improper model scheduling settings, data cannot be transmitted normally between terminals during the simulation process, or there is a problem with the transmitted data, or The data delivery time is inaccurate. For example, if there are multiple simulation models in the entire simulation system, and th...
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IPC IPC(8): G05B17/02
Inventor 宋平见永刚代志远
Owner BEIJING RUNKE GENERAL TECH