Inter-core communication method and device based on virtual data bus

Abstract

The invention relates to an inter-core communication method based on a virtual data bus, which is characterized by comprising the following steps of: 1, defining data topology information of inter-core communication based on a multi-core processor, and generating a multi-core resource configuration file according to the data topology information; 2, guiding a main core to analyze the multi-core resource configuration file, and creating a data exchange pipeline in an inter-core shared space of the main core and a plurality of slave cores based on the analysis; and 3, indicating a virtual data bus controller to realize communication interaction of the inter-core communication data based on the data exchange pipeline and the service data type of the inter-core communication. Based on the method provided by the invention, the service data of the inter-core communication can be divided according to types, and the routing table of the inter-core communication is constructed through unified modeling, so that the communication interaction is realized.

Description

technical field [0001] The present invention relates to inter-core communication of multi-core processors, and more specifically, to an inter-core communication method and device based on a virtual data bus. Background technique [0002] At present, with the continuous improvement of CPU performance requirements for various businesses, single-core processors can no longer meet business needs because the high-speed operation of the single-core chip will cause a lot of heat generation and performance degradation. Therefore, multi-core processors are increasingly used in various industries. In the electric power industry, due to the stricter requirements for real-time communication and security during the operation of the power grid, multi-core processors in the electric power industry usually operate in AMP (Asymmetric Multi-processing, asymmetric multi-processing) mode. Moreover, different application programs can run independently among multiple cores, and different applica...

AI Technical Summary

Problems solved by technology

Based on the above reasons, the overall design of the application program is more difficult. Since there is no unified multi-core communication framework, the program will not be able to flexibly respond to business changes.

In addition, when the business data changes, the data of inter-core communication will also change, which also makes the communication program non-portable

At present, applications in multi-core processors running in AMP mode realize multi-core communication based on shared memory and inter-core interrupts. However, this method can only meet the basic communication requirements of multi-core communication, and cannot simultaneously realize power secondary Requirements for rapid inter-core deployment of devices and flexible configuration of inter-core communication

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