Dynamic memory remapping to reduce row-buffer conflicts

Title: Dynamic memory remapping to reduce row-buffer conflicts

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Abstract

A data processing system includes a memory that includes a first memory bank and a second memory bank. The data processing system also includes a conflict detector connected to the memory and adapted to receive memory access information. The conflict detector tracks memory access statistics of the first memory bank, and determines if the first memory bank contains frequent row conflicts. The conflict detector also remaps a frequent row conflict in the first memory bank to the second memory bank. An indirection table is connected to the conflict detector and adapted to receive a memory access request, and redirects an address into a dynamically selected physical memory address in response to a remapping of the frequent row conflict to the second memory bank.

Inventors:: Eckert, Yasuko; Panda, Reena; Jayasena, Nuwan

Issue Date:: 2019-02-05

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1531406

Patent Number(s):: 10198369

Application Number:: 15/469,071

Assignee:: Advanced Micro Devices, Inc. (Santa Clara, CA)

Patent Classifications (CPCs):: G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02D - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE

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G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING
G06F13/4068 - {Electrical coupling}
G06F2212/7206 - Reconfiguration of flash memory system
G06F2212/7201 - Logical to physical mapping or translation of blocks or pages
G06F12/0246 - {in block erasable memory, e.g. flash memory}
G06F13/1642 - {with request queuing}
G06F13/1673 - {using buffers}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02D - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
Y02D10/00 - Energy efficient computing

G - PHYSICS G11 - INFORMATION STORAGE G11C - STATIC STORES
G11C11/4093 - Input/output [I/O] data interface arrangements, e.g. data buffers

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DOE Contract Number:: AC52-07NA27344; B609201

Resource Type:: Patent

Resource Relation:: Patent File Date: 2017-03-24

Country of Publication:: United States

Language:: English

Subject:: 97 MATHEMATICS AND COMPUTING

Citation Formats


                    Eckert, Yasuko, Panda, Reena, and Jayasena, Nuwan. Dynamic memory remapping to reduce row-buffer conflicts.  United States: N. p., 2019. 
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                    Eckert, Yasuko, Panda, Reena, & Jayasena, Nuwan. Dynamic memory remapping to reduce row-buffer conflicts.  United States.

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                    Eckert, Yasuko, Panda, Reena, and Jayasena, Nuwan. Tue .  
        "Dynamic memory remapping to reduce row-buffer conflicts".  United States.  https://www.osti.gov/servlets/purl/1531406.

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@article{osti_1531406,

  title        = {Dynamic memory remapping to reduce row-buffer conflicts},

  author       = {Eckert, Yasuko and Panda, Reena and Jayasena, Nuwan},

  abstractNote = {A data processing system includes a memory that includes a first memory bank and a second memory bank. The data processing system also includes a conflict detector connected to the memory and adapted to receive memory access information. The conflict detector tracks memory access statistics of the first memory bank, and determines if the first memory bank contains frequent row conflicts. The conflict detector also remaps a frequent row conflict in the first memory bank to the second memory bank. An indirection table is connected to the conflict detector and adapted to receive a memory access request, and redirects an address into a dynamically selected physical memory address in response to a remapping of the frequent row conflict to the second memory bank.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2019},

  month        = {2}

}

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