Information communication method and apparatus of multiprocessor system

Abstract

The invention relates to message communicating method used between multiprocessor system software functional units SFU. It includes the following steps: message enrolling for the SFU; building the coincidence relation between the target SFU address and the drive module; source SFU transmitting the message to the target SFU; when the target SFU is not in the same processor with the source SFU, using the drive module corresponding with the target SFU address to transmit message. The invention also supplies SFU message communicating device, processing message communicating method and device. It can greatly increase the portability of the middle and up layers software in multiprocessor system, reduce its designing complexity at the same time.

Description

technical field [0001] The invention relates to a multiprocessor system, in particular to a message communication method and device between processes and software function units in the multiprocessor system. Background technique [0002] In a multi-processor system, each processor needs to coordinate its operation and processing with each other to complete the work together. There are usually multiple processes on each processor. In order to coordinate the processing process, data transmission is required between processes on the same processor and between processes on different processors. The data is usually in the form of messages. passed between processes. [0003] In the prior art, the message queue provided by the operating system is usually used for message communication between processes on the same processor; while the message communication between processes on different processors needs to rely on the transmission channel provided by the hardware on the one hand, ...

AI Technical Summary

Problems solved by technology

[0006] One is the complexity of application software design: in a multiprocessor system, the communication between processes on the same processor and the communication between processes on different processors adopt completely different methods, so the source of communication The process must clearly know whether the destination process with which it communicates is located on the same processor, so as to determine the communication method between the two parties; if the two parties are in different processors, they must also know the Physical channel, and need to call the corresponding driver module for communication

This makes the application software development of multi-processor system much more complicated than that of single-processor system application software, and the requirements for developers are relatively high.

[0007] The second is the poor portability of the application software: since the inter-process message communication on different processors in the multi-processor system needs to call the driver module corresponding to the specific hardware channel, once the hardware platform of the multi-processing system changes, For example, the original communication channel between two processors is a serial port. After the revision of the hardware platform, it is changed to the HPI bus. The part of the application software code that involves the inter-process message communication between the two processors needs to be modified. The serial port driver module is changed to call the HPI bus driver module

This greatly reduces the portability of application software on different hardware platforms

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