Title: Accessing memory

Abstract

A disclosed example method involves performing simultaneous data accesses on at least first and second independently selectable logical sub-ranks to access first data via a wide internal data bus in a memory device. The memory device includes a translation buffer chip, memory chips in independently selectable logical sub-ranks, a narrow external data bus to connect the translation buffer chip to a memory controller, and the wide internal data bus between the translation buffer chip and the memory chips. A data access is performed on only the first independently selectable logical sub-rank to access second data via the wide internal data bus. The example method also involves locating a first portion of the first data, a second portion of the first data, and the second data on the narrow external data bus during separate data transfers.

Inventors:

Yoon, Doe Hyun; Muralimanohar, Naveen; Chang, Jichuan; Ranganthan, Parthasarathy

Issue Date:

Tue Sep 26 00:00:00 EDT 2017

Research Org.:

Hewlett Packard Enterprise Development LP, Houston, TX (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1399096

Patent Number(s):

9773531

Application Number:

14/405,904

Assignee:

Hewlett Packard Enterprise Development LP

Patent Classifications (CPCs):

G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING

G - PHYSICS G11 - INFORMATION STORAGE G11C - STATIC STORES

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G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING

G06F13/1663 - {Access to shared memory}

G - PHYSICS G11 - INFORMATION STORAGE G11C - STATIC STORES

G11C2207/108 - Wide data ports
G11C2207/2209 - Concurrent read and write
G11C2207/2281 - Timing of a read operation
G11C5/04 - Supports for storage elements {, e.g. memory modules}
G11C7/1072 - {for memories with random access ports synchronised on clock signal pulse trains, e.g. synchronous memories, self timed memories}

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

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DOE Contract Number:  

SC0005026

Resource Type:

Patent

Resource Relation:

Patent File Date: 2012 Jun 08

Country of Publication:

United States

Language:

English

Subject:

97 MATHEMATICS AND COMPUTING