Brian T Garrett

US Patent:

20120072908, Mar 22, 2012

Filed:

Sep 21, 2010

Appl. No.:

12/886969

Inventors:

David W. Schroth - Minneapolis MN, US
Brian Garrett - Salt Lake City UT, US
Andrew T. Jennings - Minnetonka MN, US
Michael John Rieschi - St. Paul MN, US

International Classification:

G06F 9/46

US Classification:

718 1

Abstract:

The disclosure relates generally to managing assignment of tasks among instruction processors (IPs) within a computer system having multiple IPs, and more particularly to binding emulated IPs with a host system's IPs (e.g., processor cores) for facilitating control over affinity-based assignment of tasks among the host system's IPs by a task manager (e.g., OS) that is executing on the emulated IPs, rather than running directly on the host system's IPs. Certain embodiments provide techniques for binding emulated IPs with actual IPs of a computing system that is hosting the emulated IPs, thereby enabling better control of management of the system by a task manager executing on the emulated IPs. For instance, in certain embodiments, a dispatcher (e.g., of an OS running on emulated IPs) performs affinity-based management of task assignment for tasks performed for an application program among IPs of a host system that is hosting the emulated IPs.

US Patent:

20150186291, Jul 2, 2015

Filed:

Dec 30, 2013

Appl. No.:

14/143028

Inventors:

Michael Rieschl - Roseville MN, US
James Merten - Roseville MN, US
Brian Garrett - Salt Lake City UT, US
Steven Bernardy - Roseville MN, US

Assignee:

UNISYS CORPORATION - Blue Bell PA

International Classification:

G06F 12/10
G06F 12/12

Abstract:

Systems and methods for managing memory in a dynamic translation computer system are provided. Embodiments may include receiving an instruction packet and processing the instruction packet. The instruction packet may include one or more instructions for obtaining a block of virtual memory for use in an emulated operating environment from a slab of virtual memory in a host environment, maintaining a mapping between the block of virtual memory and physical memory when the block is returned to the host environment, and for filling the block of virtual memory with zeros and a pattern based, at least in part, on a detected fill type.

US Patent:

20150187435, Jul 2, 2015

Filed:

Dec 30, 2013

Appl. No.:

14/143039

Inventors:

Michael Rieschl - Roseville MN, US
James Merten - Roseville MN, US
Brian Garrett - Salt Lake City UT, US
Steven Bernardy - Roseville MN, US

Assignee:

UNISYS CORPORATION - Blue Bell PA

International Classification:

G11C 29/10

Abstract:

Systems and methods for managing memory in a dynamic translation computer system are provided. Embodiments may include receiving an instruction packet and processing the instruction packet. The instruction packet may include one or more instructions for obtaining a block of virtual memory for use in an emulated operating environment from a slab of virtual memory in a host environment, maintaining a mapping between the block of virtual memory and physical memory when the block is returned to the host environment, and for filling the block of virtual memory with zeros and a pattern based, at least in part, on a detected fill type.