Amanda B Peters

US Patent:

20130073733, Mar 21, 2013

Filed:

Nov 14, 2012

Appl. No.:

13/676465

Inventors:

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY, US
AMANDA E. PETERS - CAMBRIDGE MA, US
BRIAN E. SMITH - KNOXVILLE TN, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION - ARMONK NY

International Classification:

G06F 15/173

US Classification:

709226

Abstract:

Methods, apparatus, and products are disclosed for balancing a data processing load among a plurality of compute nodes in a parallel computer that include: partitioning application data for processing on the plurality of compute nodes into data chunks; receiving, by each compute node, at least one of the data chunks for processing; estimating, by each compute node, processing time involved in processing the data chunks received by that compute node for processing; and redistributing, by at least one of the compute nodes to at least one of the other compute nodes, a portion of the data chunks received by that compute node in dependence upon the processing time estimated by that compute node.

US Patent:

20130159287, Jun 20, 2013

Filed:

Feb 18, 2013

Appl. No.:

13/769734

Inventors:

International Business Machines Corporation - Armonk NY, US
David L. Darrington - Rochester MN, US
Amanda Peters - Rochester MN, US
John M. Santosuosso - Rochester MN, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY

International Classification:

G06F 17/30

US Classification:

707721

Abstract:

In a networked computer system that includes multiple nodes and multiple networks interconnecting the nodes, a database query optimizer takes network choice into consideration when optimizing a query. The query optimizer logs historical information for queries that includes network information. A network monitor determines network characteristics of the multiple networks. The query optimizer then selects a network for a query based on the network characteristics, and optionally based on the historical information as well. The result is a query optimizer that takes network choice into consideration, thereby providing a query that is optimized according to the characteristics of the networks.

US Patent:

20130159745, Jun 20, 2013

Filed:

Feb 19, 2013

Appl. No.:

13/771068

Inventors:

International Business Machines Corporation - Armonk NY, US
David L. Darrington - Rochester MN, US
Amanda Peters - Cambridge MA, US
John M. Santosuosso - Rochester MN, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY

International Classification:

G06F 1/32

US Classification:

713320

Abstract:

A method for optimizing efficiency and power consumption in a hybrid computer system is disclosed. The hybrid computer system may comprise one or more front-end nodes connected to a multi-node computer system. Portions of an application may be offloaded from the front-end nodes to the multi-node computer system. By building historical profiles of the applications running on the multi-node computer system, the system can analyze the trade offs between power consumption and performance. For example, if running the application on the multi-node computer system cuts the run time by 5% but increases power consumption by 20% it may be more advantageous to simply run the entire application on the front-end.

US Patent:

20130185278, Jul 18, 2013

Filed:

Mar 5, 2013

Appl. No.:

13/786365

Inventors:

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY, US
David L. Darrington - Rochester MN, US
Amanda E. Peters - Rochester MN, US
John M. Santosuosso - Rochester MN, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY

International Classification:

G06F 17/30

US Classification:

707713

Abstract:

A database query optimizer optimizes a query that uses multiple networks. The query optimizer optimizes a query to reduce network traffic on a network or node that is overloaded or above an established parameter in a node/network attribute table. The query optimization to reduce network traffic may result in a sub-optimal query in other respects such as execution time. The result is a query optimizer that rewrites or optimizes a query to execute on multiple nodes or networks to reduce traffic on a network or node according to the loading characteristics and assigned attributes of a node or network.

US Patent:

20130185588, Jul 18, 2013

Filed:

Mar 5, 2013

Appl. No.:

13/786430

Inventors:

International Business Machines Corporation - Armonk NY, US
David L. Darrington - Rochester MN, US
Amanda E. Peters - Rochester MN, US
John M. Santosuosso - Rochester MN, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY

International Classification:

G06F 11/20

US Classification:

714 411

Abstract:

A database query execution monitor determines if a network error or low performance condition exists and then where possible modifies the query. The query execution monitor then determines an alternate query execution plan to continue execution of the query. The query optimizer can re-optimize the query to use a different network or node. Thus, the query execution monitor allows autonomic error recovery for network failures using an alternate query execution. The alternate query execution could also be determined at the initial optimization time and then this alternate plan used to execute a query in the case of a particular network failure.

US Patent:

20130191504, Jul 25, 2013

Filed:

Mar 6, 2013

Appl. No.:

13/787728

Inventors:

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY, US
David L. Darrington - Rochester MN, US
Amanda Peters - Rochester MN, US
John M. Santosuosso - Rochester MN, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY

International Classification:

H04L 29/08

US Classification:

709217

Abstract:

A method and apparatus performs peer-to-peer file transfers on a High Performance Computing (HPC) cluster such as a Beowulf cluster. A peer-to-peer file tracker (PPFT) allows operating system, application and data files to be moved from a pre-loaded node to another node of the HPC cluster. A peer-to-peer (PTP) client is loaded into the nodes to facilitate PTP file transfers to reduce loading on networks, network switches and file servers to reduce the time needed to load the nodes with these files to increase overall efficiency of the multi-node computing system. The selection of the nodes participating in file transfers can be based on network topology, network utilization, job status and predicted network/computer utilization. This selection can be dynamic, changing during the file transfers as resource conditions change. The policies used to choose resources can be configured by an administrator.

US Patent:

20130198343, Aug 1, 2013

Filed:

Mar 6, 2013

Appl. No.:

13/787740

Inventors:

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY, US
David L. Darrington - Rochester MN, US
Amanda Peters - Rochester MN, US
John M. Santosuosso - Rochester MN, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY

International Classification:

H04L 29/08

US Classification:

709219

Abstract:

A method and apparatus performs peer-to-peer file transfers on a High Performance Computing (HPC) cluster such as a Beowulf cluster. A peer-to-peer file tracker (PPFT) allows operating system, application and data files to be moved from a pre-loaded node to another node of the HPC cluster. A peer-to-peer (PTP) client is loaded into the nodes to facilitate PTP file transfers to reduce loading on networks, network switches and file servers to reduce the time needed to load the nodes with these files to increase overall efficiency of the multi-node computing system. The selection of the nodes participating in file transfers can be based on network topology, network utilization, job status and predicted network/computer utilization. This selection can be dynamic, changing during the file transfers as resource conditions change. The policies used to choose resources can be configured by an administrator.