Halldor Narfi Stefansson

US Patent:

7925791, Apr 12, 2011

Filed:

Jul 17, 2006

Appl. No.:

11/488432

Inventors:

Edric Ellis - Huntingdon, GB
Jocelyn Luke Martin - Burwell, GB
Halldor Narfi Stefansson - Natick MA, US

Assignee:

The Math Works, Inc. - Natick MA

International Classification:

G06F 15/16

US Classification:

709248, 709201, 709203, 709208, 709224, 714 12, 714 48, 714100

Abstract:

The present invention provides a system and method for detecting communication error among multiple nodes in a concurrent computing environment. A barrier synchronization point or regions are used to check for communication mismatch. The barrier synchronization can be placed anywhere in a concurrent computing program. If a communication error occurred before the barrier synchronization point, it would at least be detected when a node enters the barrier synchronization point. Once a node has reached the barrier synchronization point, it is not allowed to communicate with another node regarding data that is needed to execute the concurrent computing program, even if the other node has not reached the barrier synchronization point. Regions can also be used to detect a communication mismatch instead of barrier synchronization points. A concurrent program on each node is separated into one or more regions.

US Patent:

7975001, Jul 5, 2011

Filed:

Feb 14, 2007

Appl. No.:

11/706805

Inventors:

Halldor Narfi Stefansson - Natick MA, US
Loren Dean - Natick MA, US
Roy Lurie - Wayland MA, US

Assignee:

The MathWorks, Inc. - Natick MA

International Classification:

G06F 15/16

US Classification:

709203, 709201, 709223

Abstract:

A computer-readable medium including executable instructions for performing parallel processing on behalf of a client operating a technical computing environment is provided. The medium may include instructions for receiving a request from the client. The medium may include instructions for commencing parallel processing on behalf of the client based on the received request and instructions for sending a query to the client, the query related to the parallel processing. The medium may include instructions for receiving an answer from the client, the answer received when the client has processed the query. The medium may include instructions for generating a result based on the parallel processing, the result used by the client or by another device to perform an operation.

US Patent:

8010954, Aug 30, 2011

Filed:

May 15, 2007

Appl. No.:

11/748938

Inventors:

John N. Little - Sherborn MA, US
Joseph F. Hicklin - Upton MA, US
Jocelyn Luke Martin - Burwell, GB
Nausheen B. Moulana - Framingham MA, US
Halldor N. Stefansson - Natick MA, US
Loren Dean - Natick MA, US
Roy E. Lurie - Wayland MA, US
Stephen C. Johnson - Sudbury MA, US
Penelope L. Anderson - Newton MA, US
Michael E. Karr - Brookline MA, US
Jason A. Kinchen - Winchester MA, US

Assignee:

The MathWorks, Inc. - Natick MA

International Classification:

G06F 9/45
G06F 9/445

US Classification:

717149, 717148, 717151

Abstract:

A computing device-implemented method includes receiving a program created by a technical computing environment, analyzing the program, generating multiple program portions based on the analysis of the program, dynamically allocating the multiple program portions to multiple software units of execution for parallel programming, receiving multiple results associated with the multiple program portions from the multiple software units of execution, and providing the multiple results or a single result to the program.

US Patent:

8041790, Oct 18, 2011

Filed:

Apr 16, 2010

Appl. No.:

12/761777

Inventors:

Loren Dean - Natick MA, US
Halldor Narfi Stefansson - Natick MA, US

Assignee:

The MathWorks, Inc. - Natick MA

International Classification:

G06F 15/177

US Classification:

709220, 709201, 713 1, 713 2

Abstract:

A system generates an executable process for execution by a concurrent computing environment, generates a configuration that specifies configurable properties of the concurrent computing environment, and initiates execution of the executable process, with the concurrent computing environment, to initiate configuration of the concurrent computing environment based on the configurable properties of the configuration.

US Patent:

8108845, Jan 31, 2012

Filed:

May 15, 2007

Appl. No.:

11/748947

Inventors:

John N. Little - Sherborn MA, US
Joseph F. Hicklin - Upton MA, US
Jocelyn Luke Martin - Burwell, GB
Nausheen B. Moulana - Framingham MA, US
Halldor N. Stefansson - Natick MA, US
Loren Dean - Natick MA, US
Roy E. Lurie - Wayland MA, US
Stephen C. Johnson - Sudbury MA, US
Penelope L. Anderson - Newton MA, US
Michael E. Karr - Brookline MA, US
Jason A. Kinchen - Winchester MA, US

Assignee:

The Mathworks, Inc. - Natick MA

International Classification:

G06F 9/45
G06F 9/44

US Classification:

717149, 717148, 717151

Abstract:

A computing system receives a program created by a technical computing environment, analyzes the program, generates multiple program portions based on the analysis of the program, dynamically allocates the multiple program portions to multiple software units of execution for parallel programming, receives multiple results associated with the multiple program portions from the multiple software units of execution, and provides the multiple results or a single result to the program.

US Patent:

8239844, Aug 7, 2012

Filed:

Oct 20, 2008

Appl. No.:

12/254572

Inventors:

Halldor N. Stefansson - Natick MA, US
Brett Baker - Framingham MA, US
Edric Ellis - Cambs, GB
Joseph F. Hicklin - Upton MA, US
John N. Little - Sherborn MA, US
Jocelyn Luke Martin - Burwell, GB
Piotr R. Luszczek - Knoxville TN, US
Nausheen B. Moulana - Southboro MA, US
Loren Dean - Natick MA, US
Roy E. Lurie - Wayland MA, US

Assignee:

The MathWorks, Inc. - Natick MA

International Classification:

G06F 9/45
G06F 9/445

US Classification:

717149, 717151, 717155

Abstract:

A computing device-implemented method includes receiving a program, analyzing and transforming the program, determining an inner context and an outer context of the program based on the analysis of the program, and allocating one or more portions of the inner context of the program to two or more labs for parallel execution. The method also includes receiving one or more results associated with the parallel execution of the one or more portions from the two or more labs, and providing the one or more results to the outer context of the program.

US Patent:

8239845, Aug 7, 2012

Filed:

Oct 20, 2008

Appl. No.:

12/254584

Inventors:

Halldor N. Stefansson - Natick MA, US
Brett Baker - Framingham MA, US
Edric Ellis - Cambs, GB
Joseph F. Hicklin - Upton MA, US
John N. Little - Sherborn MA, US
Jocelyn Luke Martin - Burwell, GB
Piotr R. Luszczek - Knoxville TN, US
Nausheen B. Moulana - Southboro MA, US
Loren Dean - Natick MA, US
Roy E. Lurie - Wayland MA, US

Assignee:

The MathWorks, Inc. - Natick MA

International Classification:

G06F 9/45
G06F 9/44

US Classification:

717149, 717151, 717156

Abstract:

One or more computer-readable media store executable instructions that, when executed by processing logic, perform parallel processing. The media store one or more instructions for receiving one or more portions of an inner context of a program created for a technical computing environment, allocating one or more portions of the inner context of the program to two or more labs for parallel execution, receiving one or more results associated with the parallel execution of the one or more portions from the two or more labs, and providing the one or more results to an outer context of the program.

US Patent:

8239846, Aug 7, 2012

Filed:

Oct 20, 2008

Appl. No.:

12/254620

Inventors:

Piotr R. Luszczek - Knoxville TN, US
John N. Little - Sherborn MA, US
Jocelyn Luke Martin - Burwell, GB
Halldor N. Stefansson - Natick MA, US
Edric Ellis - Cambs, GB
Penelope L. Anderson - Newton MA, US
Brett Baker - Framingham MA, US
Loren Dean - Natick MA, US
Roy E. Lurie - Wayland MA, US

Assignee:

The MathWorks, Inc. - Natick MA

International Classification:

G06F 9/45
G06F 9/44

US Classification:

717149, 717151, 717156

Abstract:

A device for performing parallel processing includes a processor to initiate a single programming language, and identify, via the single programming language, one or more data distribution schemes for executing a program. The processor also transforms, via the single programming language, the program into a parallel program with an optimum data distribution scheme selected from the one or more identified data distribution schemes, and allocates the parallel program to two or more labs for parallel execution. The processor further receives one or more results associated with the parallel execution of the parallel program from the two or more labs, and provides the one or more results to the program.