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A low-cost, low-power, high-performance smp/asmp multiprocessor system

A processing system and multi-processor technology, applied in the direction of electrical digital data processing, digital data processing components, instruments, etc., can solve problems such as high delay and high power consumption

Active Publication Date: 2021-08-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This results in higher latency and higher power consumption

Method used

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  • A low-cost, low-power, high-performance smp/asmp multiprocessor system
  • A low-cost, low-power, high-performance smp/asmp multiprocessor system
  • A low-cost, low-power, high-performance smp/asmp multiprocessor system

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Embodiment Construction

[0041] Figures 1 to 1 discussed in this paper Figure 11 , and the various embodiments illustrated in said patent documents and the principles of the invention described below are by way of illustration only and should not be construed in any way as limiting the scope of the invention. Those skilled in the art will understand that the principles described herein may be implemented by any type of reasonably arranged device or system.

[0042] It has been found that when switching the operation of a group of processors / cores from a fully SMP system to a fully ASMP system, the cost and complexity (hardware / software) associated with providing this SMP / ASMP dynamic switching functionality can be significant. For smaller devices (e.g., mobile devices, handheld devices, smartphones, etc. in mobile applications, rather than supercomputing devices and applications), it has been determined through investigation and testing that two (or fewer ) processors / cores to adequately handle mult...

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Abstract

The processing system includes a plurality of processors, wherein a first processor operates at a first clock frequency and a first supply voltage at all times. At least one processor is dynamically switchable to operate at the first clock frequency and the first supply voltage such that the first processor and the second processor provide symmetric multi-processing (SMP ), or operate at a second clock frequency and a second supply voltage such that the first processor and the second processor provide asymmetrical multi-processing (ASMP). A third processor may be included that also operates at said first clock frequency and said first supply voltage at all times. Various criteria may be used to determine when to switch the at least one switchable processor to improve power consumption and / or performance. A controller enables control and rapid switching of the switchable processor between the two modes. After receiving the switching command for switching between SMP and ASMP, a series or series of actions are executed to control the power supply voltage and CPU / memory clock of the switchable processor and cache memory.

Description

[0001] Related Applications Cross Application [0002] The present invention requires that the title of the invention submitted on December 22, 2014 is "A Novel Low Cost, Low Power High Performance SMP / ASMP Multi-Processor System (A Novel Low Cost, Low Power High Performance SMP / ASMP Multiple-Processor System)". Priority to U.S. Nonprovisional Patent Application No. 14 / 580,044, filed October 16, 2014, entitled "Hardware Apparatus for Dynamic Asymmetric and Symmetric Mode Switching of a Multiprocessor and (Hardware Apparatus and Method for Multiple Processors Dynamic Asymmetric and Symmetric Mode Switching)", which is a continuation-in-part of prior U.S. Patent Application No. 14 / 516,314, which are hereby incorporated by reference as if reproduced in their entirety . technical field [0003] The present invention relates generally to multiprocessor architectures and systems, and in particular, the present invention relates to methods for switching at least one processor / core i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/324
CPCG06F1/10G06F1/3243G06F1/3296G06F1/324Y02D10/00Y02D30/50G06F1/3275G06F1/3287
Inventor 陈伟魏孔刚杨同增
Owner HUAWEI TECH CO LTD