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A task scheduling method and device based on many-core system

A technology of task scheduling and scheduling algorithm, which is applied in the directions of multi-programming device, program startup/switching, resource allocation, etc., can solve problems such as inability to achieve, and achieve the effect of efficient scheduling, improving throughput, and improving microprocessor resources.

Inactive Publication Date: 2015-11-18
SHANGHAI JIAOTONG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

On the other hand, for online reconfigurability, for a single task, the existing task scheduling technology cannot add or release resources online during task execution, while ensuring the normal operation of other tasks

Method used

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  • A task scheduling method and device based on many-core system
  • A task scheduling method and device based on many-core system
  • A task scheduling method and device based on many-core system

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Embodiment Construction

[0041] The embodiment of the present invention provides a task scheduling method and device based on a many-core system. By dividing the microprocessor many-core system into a management scheduling area and a task execution area, the scheduling algorithm and compilation The command command generates compilation information, and the scheduling unit receives the compilation information and schedules the threads that need to be scheduled to the appropriate PE, builds a computing mode that meets the requirements, and forms a suitable virtual computing group VCG by configuring the subnet; the task execution area is under the scheduling of the scheduling unit Make a response strategy, and then realize dynamic and online reconfiguration. This solution can improve the microprocessor resources of the many-core platform, efficiently schedule task sets, optimize system performance, and improve the throughput of the streamlined many-core system.

[0042] In order to make the object, techni...

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Abstract

The invention provides task scheduling method and device based on a multi-core system. A microprocessor multi-core system is divided into a management scheduling region and a task execution region. Compilation information is generated by scheduling algorithm and compilation instructions according to different applications and current system resources. A scheduling unit receives the compilation information and schedules a thread to be scheduled to a proper PE (processor element), a satisfactory calculation mode is built, and a proper VCG (virtual computing group) is formed by configuring a subnet. The task execution region takes countermeasures under scheduling of the scheduling unit so as to achieve dynamic online reconfiguration. By the method and the device, utilization rate of microprocessor resources of multi-core platforms can be increased, task sets are scheduled effectively, system performance is optimized, and throughput rate of simplified multi-core systems is increased.

Description

technical field [0001] The invention relates to the technical field of computer task scheduling and resource mapping, in particular to a task scheduling method and device based on many-core systems. Background technique [0002] At present, the development of microprocessor micro-architecture has the following four important trends: First, the system structure of single-chip integration. Using SoC (System On Chip) technology to realize the miniaturization and integration of traditional computer systems in a single chip is an important trend in the research and design of microprocessors. A single chip multiprocessor CMP (ChipMultiprocessor) is formed by integrating multiple processor cores, inter-core interconnection networks, and on-chip multi-level storage levels in a single chip. With the continuous expansion of chip scale, the future trend is to integrate larger-scale MPP systems (the number of nodes to hundreds of orders of magnitude, or even more) into a single chip to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/48G06F9/50
Inventor 付宇卓刘子杨蒋江刘婷
Owner SHANGHAI JIAOTONG UNIV
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