Title: Performance monitoring for new phase dynamic optimization of instruction dispatch cluster configuration

Abstract

In a processor having multiple clusters which operate in parallel, the number of clusters in use can be varied dynamically. At the start of each program phase, the configuration option for an interval is run to determine the optimal configuration, which is used until the next phase change is detected. The optimum instruction interval is determined by starting with a minimum interval and doubling it until a low stability factor is reached.

Inventors:

Balasubramonian, Rajeev ^[1]; Dwarkadas, Sandhya ^[2]; Albonesi, David ^[3]

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1. Sandy, UT
2. Rochester, NY
3. Ithaca, NY

Issue Date:

Tue Jan 24 00:00:00 EST 2012

Research Org.:

Univ. of Rochester, NY (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1034620

Patent Number(s):

8103856

Application Number:

12/352,493

Assignee:

University of Rochester (Rochester, NY)

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

G06F15/16 - Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs {
G06F2209/507 - Low-level
G06F9/3828 - {with global bypass, e.g. between pipelines, between clusters}
G06F9/3836 - {Instruction issuing, e.g. dynamic instruction scheduling, out of order instruction execution}
G06F9/3851 - {from multiple instruction streams, e.g. multistreaming
G06F9/3891 - {organised in groups of units sharing resources, e.g. clusters}
G06F9/5061 - {Partitioning or combining of resources}

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:  

University of Rochester (Rochester, NY)

Resource Type:

Patent

Resource Relation:

Patent File Date: 2009 Jan 12

Country of Publication:

United States

Language:

English

Subject:

97 MATHEMATICS AND COMPUTING