A barrier operating network system, device and method based on fat tree topology

A technology of fat tree topology and network system, which is applied in the direction of star/tree network, transmission system, digital transmission system, etc. It can solve the problems of unreachable functions and performance, unachievable efficiency, delay optimization, etc., and achieve reduction Influence, improve efficiency, and reduce the effect of transmission delay

Active Publication Date: 2009-12-16
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0017] While the existing technology guarantees its reliability, it cannot achieve the optimization of efficiency, that is, low latency, and cannot achieve the double guarantee of function and performance.

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  • A barrier operating network system, device and method based on fat tree topology
  • A barrier operating network system, device and method based on fat tree topology
  • A barrier operating network system, device and method based on fat tree topology

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Embodiment Construction

[0083] In order to make the object, technical solution and advantages of the present invention clearer, a fat tree topology-based Barrier operation network system, device and method of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0084] The barrier operation network system, device and method based on the fat tree topology of the present invention, the core is to realize the efficient and reliable barrier operation related to the link state, which is based on the fat tree (Fat-Tree) topology structure, adopts the tree structure, and uses the switch as the The root of the barrier (Barrier) tree, the processor node 12 is used as the leaf of the barrier tree, and supports multiple concurrent barrier operations, and different operations correspond to...

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Abstract

The utility model discloses a barrier operating network system, a device ands a method based on the fat-tree topology. In the data internet work of a multiprocessor system, the node of the switch is adopted as the root of the barrier tree and the node of the processor is adopted as the leaf of the barrier tree; the node of the switch comprises a barrier module used in the process of reduction and distribution. As for ensuring the reliability of the barrier operation, the receiving of the barrier reduction packet adopts the response mode while the receiving of the barrier distribution packet adopts the hustling mode. The multiple barrier operations can be distinguished through the single-bit label manner; the link error rate of the prior switch can be obtained through accounting the error rate to automatically regulate the overtime retransmission parameters so as to ensure the reliability of the network transmission, increase the network transmission efficiency (low retardance) and reach the double assurance of the function and the performance.

Description

technical field [0001] The invention relates to the technical field of multiprocessors, in particular to a barrier (Barrier) operating network system, device and method based on fat tree topology. Background technique [0002] A multiprocessor system is one of the parallel processing computer systems (Parallel Computer System, PCS), which is composed of multiple independent computers that can independently execute their own programs. data exchange and synchronization. [0003] A multiprocessor system is a multiple instruction multiple data (Multiple Instruction Multiple Data, MIMD) processor system, each processor allocates a part of a parallel program, and each program segment executes processing concurrently. [0004] However, in a multiprocessor system, during the execution of each program segment, between program segments, in some cases, such as when data correlation occurs between program segments, a certain order relationship is still required. In order to maintain t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/44H04L12/56H04L1/18H04L1/16
Inventor 曹政刘新春安学军王达伟
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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