Title: Thread selection according to predefined power characteristics during context switching on compute nodes

Abstract

Methods, apparatus, and products are disclosed for thread selection during context switching on a plurality of compute nodes that includes: executing, by a compute node, an application using a plurality of threads of execution, including executing one or more of the threads of execution; selecting, by the compute node from a plurality of available threads of execution for the application, a next thread of execution in dependence upon power characteristics for each of the available threads; determining, by the compute node, whether criteria for a thread context switch are satisfied; and performing, by the compute node, the thread context switch if the criteria for a thread context switch are satisfied, including executing the next thread of execution.

Issue Date:

Tue Jun 04 00:00:00 EDT 2013

Research Org.:

International Business Machines Corp., Armonk, NY (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1084332

Patent Number(s):

8458722

Application Number:

12/135,604

Assignee:

International Business Machines Corporation (Armonk, 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

G06F1/3203 - Power management, i.e. event-based initiation of power-saving mode
G06F1/329 - by task scheduling
G06F2209/5018 - Thread allocation
G06F9/46 - Multiprogramming arrangements
G06F9/48 - Program initiating
G06F9/4893 - {taking into account power or heat criteria
G06F9/5027 - {the resource being a machine, e.g. CPUs, Servers, Terminals}
G06F9/5094 - {where the allocation takes into account power or heat criteria

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:  

B554331

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

24 POWER TRANSMISSION AND DISTRIBUTION