Michael O Floyd

US Patent:

8635483, Jan 21, 2014

Filed:

Apr 5, 2011

Appl. No.:

13/079842

Inventors:

Emrah Acar - Montvale NJ, US
Pradip Bose - Yorktown Heights NY, US
Bishop C. Brock - Coupland TX, US
Alper Buyuktosunoglu - White Plains NY, US
Michael S. Floyd - Cedar Park TX, US
Maria L. Pesantez - Austin TX, US
Gregory S. Still - Raleigh NC, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1/00
G06F 1/26
G06F 15/00
G01R 21/00
G01R 19/00

US Classification:

713340, 713320, 702 60, 702 64, 712 28

Abstract:

A mechanism is provided for automatically tuning power proxy architectures. Based on the set of conditions related to an application being executed on a microprocessor core, a weight factor to use for each activity in a set of activities being monitored for the microprocessor core is identified, thereby forming a set of weight factors. A power usage estimate value is generated using the set of activities and the set of weight factors. A determination is made as to whether the power usage estimate value is greater than a power proxy threshold value identifying a maximum power usage for the microprocessor core. Responsive to the power usage estimate value being greater than the power proxy threshold value, a set of signals is sent to one or more on-chip actuators in the power proxy unit associated with the microprocessor core and a set of operational parameters associated with the component are adjusted.

US Patent:

20130254526, Sep 26, 2013

Filed:

Mar 26, 2012

Appl. No.:

13/429587

Inventors:

Bulent Abali - Tenafly NJ, US
Michael S. Floyd - Cedar Park TX, US
Eren Kursun - Yorktown Heights NY, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 9/06

US Classification:

713100

Abstract:

Awareness of the relationships among the operating parameters for an individual core and among cores allows dynamic and intelligent management of the multi-core system. The relationships among operating parameters and cores, which can be somewhat opaque, are established with design-time simulations, and adapted with run time data collected from operation of the multi-core system. The relationships are expressed with functions that translate between operating parameters, between different cores, and between operating parameters of different cores. These functions are embodied in circuitry built into the multi-core system. The circuitry will be referred to hereinafter as a translator unit. The translator unit traverses the complex relational dependencies among multiple operating parameters and multiple cores, and determines an outcome with respect to one or more constraints corresponding to those operating parameters and cores.

US Patent:

20150268710, Sep 24, 2015

Filed:

Mar 19, 2014

Appl. No.:

14/219550

Inventors:

- Armonk NY, US
Alper Buyuktosunoglu - White Plains NY, US
Michael S. Floyd - Cedar Park TX, US
Heather L. Hanson - Austin TX, US
Hans M. Jacobson - White Plains NY, US
Karthick Rajamani - Austin TX, US
Srinivasan Ramani - Cary NC, US
Todd J. Rosedahl - Zumbrota MN, US
Augusto J. Vega - Astoria NY, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1/32
G06F 9/50

Abstract:

According to an aspect, power management of a multi-core processing system includes determining workload characteristics in the multi-core processing system. A power adjustment scenario is identified based on the workload characteristics. A predetermined actuation order for at least two power adjustment actuators is identified based on the power adjustment scenario. Based on the predetermined actuation order, it is determined whether there is an adequate adjustment capacity for a power adjustment action associated with one of the at least two power adjustment actuators. The power adjustment action is initiated based on the predetermined actuation order and determining that the adequate adjustment capacity is available.