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Method and system for communication using InfiniBand network

A network and purpose technology, applied in the field of InfiniBand network, can solve the problems of low delay, high bandwidth of InfiniBand network, full utilization, etc., and achieve the effect of low delay, high bandwidth and eliminating overhead

Inactive Publication Date: 2009-04-15
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the high-bandwidth and low-latency performance of the InfiniBand network cannot be fully utilized through the existing IPoIB and SDP

Method used

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  • Method and system for communication using InfiniBand network
  • Method and system for communication using InfiniBand network
  • Method and system for communication using InfiniBand network

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Embodiment Construction

[0059] The present invention designs and realizes a high-performance stream communication unit named uStream by adopting a series of key technologies in the user state. Since it is implemented in user mode, uStream eliminates the overhead of user / kernel space context switching and the complexity of kernel dependencies, and supports InfiniBand's RDMA feature and zero-copy mechanism. It provides high-performance communication for applications through a streaming interface.

[0060] uStream adopts the following key technical means to eliminate the performance overhead in the communication process, so as to achieve high-bandwidth, low-latency performance.

[0061] 1. Independent dual-channel (data / control) strategy;

[0062] 2. Buffer wrapping algorithm and pre-registration;

[0063] 3. Non-real-time confirmation strategy;

[0064] 4. Asynchronous sending mechanism and zero copy.

[0065] The following introduces several key means used in uStream, and then briefly describes th...

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PUM

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Abstract

The invention relates to a method which uses InfiniBand network for communication and a system thereof. The method comprises: first step, a sender and a receiver exchange handshaking information which comprises QPN that is used for establishing a new link in the InfiniBand network, RDMA buffer address of the receiver and the size of the RDMA buffer of the receiver; second step, the sender directly writes a current data packet into the RDMA buffer of the receiver according to the RDMA buffer address of the receiver and the size of the RDMA buffer of the receiver; third step, the sender upgrades the buffer state of the receiver which is stored by the sender; forth step, when the application data transmission is finished, the sender closes the link. The method and the system thereof have the advantages that uStream is superior to SDP in both bandwidth and delay and performance comparative to a bottom InfiniBand Verbs interface is obtained.

Description

technical field [0001] The invention relates to an InfiniBand network, in particular to a communication method and system using the InfiniBand network. Background technique [0002] Due to its low cost, high performance and good scalability, since the 1990s, computer clusters based on Ethernet and other high-performance network connections have been increasingly widely used in the fields of high-performance computing and enterprise computing. As the main technology for the internal interconnection of computer clusters, system area networks (SAN, system area networks) have developed rapidly at the same time. Some system area networks with high bandwidth and low delay characteristics, such as Myrinet, Quadrics, SCI and InfiniBand, are able to It provides higher performance than Ethernet and gradually becomes the mainstream interconnection technology of network high-speed channel. [0003] Among them, InfiniBand is currently one of the most widely used system area networks. It...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L1/00H04L1/16
Inventor 林瑶韩冀中张洪伟贺劲
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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