Michael E Yoder

US Patent:

7114040, Sep 26, 2006

Filed:

Mar 2, 2004

Appl. No.:

10/791261

Inventors:

Michael E. Yoder - San Jose CA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G06F 12/08

US Classification:

711148, 711127, 711132, 711147, 711157

Abstract:

One embodiment disclosed relates to a method of selecting a default locality for a memory object requested by a process running on a CPU in a multiprocessor system. A determination is made as to whether the memory object comprises a shared-memory object. If the memory object comprises said shared-memory object, then the default locality is selected to be within interleaved memory in the system. If not, a further determination may be made as to whether the memory object comprises a stack-type object. If the memory object comprises said stack-type object, then the default locality may be selected to be within local memory at a same cell as the requesting CPU. If not, a further determination may be made as to whether the requesting process has threads running on multiple cells.

US Patent:

7426622, Sep 16, 2008

Filed:

Mar 10, 2004

Appl. No.:

10/798710

Inventors:

Michael E. Yoder - San Jose CA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G06F 12/00

US Classification:

711170, 711203, 718104

Abstract:

One embodiment disclosed relates to a method of selecting a physical memory locality in a multiprocessor system. A data structure including sets of equidistant localities is provided. A preferred locality is determined using a pointer to a locality within said data structure. Other embodiments disclosed relate to the multiprocessor computing system, the operating system for the multiprocessor computing system, and the data structure for use in selecting a physical memory locality.

US Patent:

20050240699, Oct 27, 2005

Filed:

Mar 31, 2004

Appl. No.:

10/813879

Inventors:

Michael Yoder - San Jose CA, US
William Pohl - Morgan Hill CA, US

International Classification:

G06F012/00

US Classification:

710200000

Abstract:

One embodiment disclosed relates to a method of deactivating a process by a computer operating system. Threads of the process that are currently suspendable are moved to a stopped state. A process-wide deactivation operation is initiated. The process-wide deactivation operation is called by outstanding threads of the process when the outstanding threads re-enter the operating system's kernel.

US Patent:

20050240748, Oct 27, 2005

Filed:

Apr 27, 2004

Appl. No.:

10/832758

Inventors:

Michael Yoder - San Jose CA, US

International Classification:

G06F012/00

US Classification:

711170000, 711141000

Abstract:

Various approaches are described for allocating memory objects in a non-uniform memory access (NUMA) system. In one embodiment, at least one instance of a data structure of a first type is established to include a plurality of locality definitions. Each instance of the first type data structure has an associated set of program-configurable attributes that are used in controlling allocation of memory objects via the instance. Each locality definition is selectable via a locality identifier and designates a memory subsystem in the NUMA system. In response to a request from a processor in the NUMA system for allocation of memory objects via an instance of the first type data structure and specifying a locality identifier, memory objects are allocated to the requesting processor from the memory subsystem designated by the locality definition as referenced by the locality identifier.