Data transmission method and system
A data transmission method and a technology of a data transmission system, which are applied in the field of communication, can solve problems such as waste of transmission bandwidth, and achieve the effect of data reception without delay
Active Publication Date: 2016-10-05
BEIJING QIHOO TECH CO LTD
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[0005] The above-mentioned data transmission method using the sequential transmission model has the following disadvantages: under normal circumstances, the network cards of all nodes in the cluster system are isomorphic, so their maximum transmission bandwidth is the same
Since all nodes will send data to the same node during each round of data transmission, when the bandwidth of the receiving node is fully utilized, the bandwidth of all sending nodes is not fully used, which causes the overall transmission bandwidth to be limited. waste
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[0024] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0025] Different from the data transmission method in the prior art that adopts a sequential transmission model, the data transmission method of the present invention adopts a round-by-round random sending and receiving model. The cluster system of the present invention includes N nodes, and N≥2, then the data transmission process of the N nodes is divided into N-1 rounds. figure 2 A flow chart of a data transmission method accord...
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The invention discloses a data transmission method and system. The data transmission method comprises the following steps: a data transmission process of N nodes is divided into N-1 turns, wherein N is no less than 2; for each node, a data sending sequence of the node is randomly selected, wherein the data sending sequence is an arrangement sequence, by turns, of nodes which receive data sent by the node in the data transmission process; and in each turn of the data transmission process, each node executes a sending action once, nodes executing the sending action send the data according to respective data sending sequences, and nodes executing receiving actions receive the data in a first-reach and first-receive manner. According to the data transmission method and system, the data is in scattered transmission, so that the situation that a network card of each node can work by more sufficiently utilizing the maximum transmission bandwidth is guaranteed.
Description
technical field [0001] The present invention relates to the field of communication technology, in particular to a data transmission method and system. Background technique [0002] Beowulf cluster is a high-performance parallel computer cluster structure. It is a loosely coupled multi-processor system constructed by a group of independent computer systems. Each process in the system communicates with the network and transfers information through shared memory. , so as to realize distributed parallel computing. The Beowulf cluster is designed to enable general university computer science departments and small research institutions to build their own supercomputer systems capable of running billions of instructions per second. Beowulf cluster technology solves the problem of how to achieve high performance and high real-time computing system by using ordinary computers. In recent years, the Beowulf cluster system has developed rapidly, mainly because the processing performan...
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IPC IPC(8): H04L12/861
Inventor 何锐邦唐会军
Owner BEIJING QIHOO TECH CO LTD