Programmable partitioning for high-performance coherence domains in a multiprocessor system
Abstract
A multiprocessor computing system and a method of logically partitioning a multiprocessor computing system are disclosed. The multiprocessor computing system comprises a multitude of processing units, and a multitude of snoop units. Each of the processing units includes a local cache, and the snoop units are provided for supporting cache coherency in the multiprocessor system. Each of the snoop units is connected to a respective one of the processing units and to all of the other snoop units. The multiprocessor computing system further includes a partitioning system for using the snoop units to partition the multitude of processing units into a plurality of independent, memory-consistent, adjustable-size processing groups. Preferably, when the processor units are partitioned into these processing groups, the partitioning system also configures the snoop units to maintain cache coherency within each of said groups.
- Inventors:
-
- Ridgefield, CT
- Chappaqua, NY
- Issue Date:
- Research Org.:
- International Business Machines Corp., Armonk, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1012661
- Patent Number(s):
- 7877551
- Application Number:
- 11/768,532
- Assignee:
- International Business Machines Corporation (Armonk, NY)
- Patent Classifications (CPCs):
-
G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING
- DOE Contract Number:
- B554331
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2007 Jun 26
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 97 MATHEMATICS AND COMPUTING
Citation Formats
Blumrich, Matthias A, and Salapura, Valentina. Programmable partitioning for high-performance coherence domains in a multiprocessor system. United States: N. p., 2011.
Web.
Blumrich, Matthias A, & Salapura, Valentina. Programmable partitioning for high-performance coherence domains in a multiprocessor system. United States.
Blumrich, Matthias A, and Salapura, Valentina. Tue .
"Programmable partitioning for high-performance coherence domains in a multiprocessor system". United States. https://www.osti.gov/servlets/purl/1012661.
@article{osti_1012661,
title = {Programmable partitioning for high-performance coherence domains in a multiprocessor system},
author = {Blumrich, Matthias A and Salapura, Valentina},
abstractNote = {A multiprocessor computing system and a method of logically partitioning a multiprocessor computing system are disclosed. The multiprocessor computing system comprises a multitude of processing units, and a multitude of snoop units. Each of the processing units includes a local cache, and the snoop units are provided for supporting cache coherency in the multiprocessor system. Each of the snoop units is connected to a respective one of the processing units and to all of the other snoop units. The multiprocessor computing system further includes a partitioning system for using the snoop units to partition the multitude of processing units into a plurality of independent, memory-consistent, adjustable-size processing groups. Preferably, when the processor units are partitioned into these processing groups, the partitioning system also configures the snoop units to maintain cache coherency within each of said groups.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {1}
}
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