Method for transmitting data among parallel systems and system of method

Abstract

The invention relates to the field of computers and communications and discloses a method for transmitting data among parallel systems and a system of the method. According to the method for transmitting the data among the parallel systems, a plurality of the parallel systems are connected with one another through a peripheral component interconnect express (PCIe) bus, each of the parallel systems establishes a buffer area descriptor and a receiving buffer area for other systems, data are transmitted to the corresponding receiving buffer area in a receiving system, information in the buffer area descriptor is set and read by the receiving system, a bottom network can be established in the plurality of the parallel systems, and free data transmission among the systems can be achieved. A reading position and a writing position are correspondingly arranged in a sending descriptor of a sending system and a receiving descriptor of the receiving system, the sending system updates the writing position in the receiving system through the PCIe bus, the receiving system updates the reading position in the sending system through the PCIe bus, and the reading position and the writing position in the descriptors are not required to be updated fully by the local system. Time required for data transmission can be further shortened.

Description

technical field [0001] The invention relates to the field of computer and communication, in particular to the technology of data transmission between parallel systems. Background technique [0002] In the Chinese patent application number 02110763.7, a virtual network card system and its communication method based on multi-processors are disclosed. The whole Virtual network card system; external data packets pass through the network card, network card driver module, and communication driver module of the main processor, and are distributed to the destination processor according to the destination address of the data packet; the network protocol stack of each processor converts the data of the upper application part into The data packet is sent to the outside through the communication driver module, the communication device between the processors, the communication driver module of the main processor, the network card driver module and the network card. [0003] The inventor...

AI Technical Summary

Problems solved by technology

[0007] 4. In the prior art, the master-end system is used to maintain the network configuration information of the entire system, and the importance of the master-end system can be clearly seen. If the master-end system crashes during operation, other slave-end systems will not be able to communicate

[0008] 5. In the existing technology, it is necessary to expose the MAC of the slave system to the external network through the master network card, which may cause address conflicts

Images