Patents by Inventor Hung Q. Thai
Hung Q. Thai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9606837Abstract: A method, apparatus and program product utilize an empirical approach to determine the locations of one or more IO adapters in an HPC environment. Performance tests may be run using a plurality of candidate mappings that map IO adapters to various locations in the HPC environment, and based upon the results of such testing, speculative adapter affinity information may be generated that assigns one or more IO adapters to one or more locations to optimize adapter affinity performance for subsequently-executed tasks.Type: GrantFiled: October 31, 2014Date of Patent: March 28, 2017Assignee: International Business Machines CorporationInventors: Wen C. Chen, Tsai-Yang Jea, Wiliam P. LePera, Hung Q. Thai, Hanhong Xue, Zhi Zhang
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Patent number: 9503383Abstract: A message flow controller limits a process from passing a new message in a reliable message passing layer from a source node to at least one destination node while a total number of in-flight messages for the process meets a first level limit. The message flow controller limits the new message from passing from the source node to a particular destination node from among a plurality of destination nodes while a total number of in-flight messages to the particular destination node meets a second level limit. Responsive to the total number of in-flight messages to the particular destination node not meeting the second level limit, the message flow controller only sends a new packet from among at least one packet for the new message to the particular destination node while a total number of in-flight packets for the new message is less than a third level limit.Type: GrantFiled: April 17, 2015Date of Patent: November 22, 2016Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Uman Chan, Deryck X. Hong, Tsai-Yang Jea, Chulho Kim, Zenon J. Piatek, Hung Q. Thai, Abhinav Vishnu, Hanhong Xue
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Patent number: 9495217Abstract: A method, apparatus and program product utilize an empirical approach to determine the locations of one or more IO adapters in an HPC environment. Performance tests may be run using a plurality of candidate mappings that map IO adapters to various locations in the HPC environment, and based upon the results of such testing, speculative adapter affinity information may be generated that assigns one or more IO adapters to one or more locations to optimize adapter affinity performance for subsequently-executed tasks.Type: GrantFiled: July 29, 2014Date of Patent: November 15, 2016Assignee: International Business Machines CorporationInventors: Wen C. Chen, Tsai-Yang Jea, Wiliam P. LePera, Hung Q. Thai, Hanhong Xue, Zhi Zhang
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Patent number: 9430297Abstract: Load balancing of adapters on a multi-adapter node of a communications environment. A task executing on the node selects an adapter resource unit to be used as its primary port for communications. The selection is based on the task's identifier, and facilitates a balancing of the load among the adapter resource units. Using the task's identifier, an index is generated that is used to select a particular adapter resource unit from a list of adapter resource units assigned to the task. The generation of the index is efficient and predictable.Type: GrantFiled: December 15, 2008Date of Patent: August 30, 2016Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Hung Q. Thai, Hanhong Xue
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Publication number: 20160034312Abstract: A method, apparatus and program product utilize an empirical approach to determine the locations of one or more IO adapters in an HPC environment. Performance tests may be run using a plurality of candidate mappings that map IO adapters to various locations in the HPC environment, and based upon the results of such testing, speculative adapter affinity information may be generated that assigns one or more IO adapters to one or more locations to optimize adapter affinity performance for subsequently-executed tasks.Type: ApplicationFiled: July 29, 2014Publication date: February 4, 2016Inventors: Wen C. Chen, Tsai-Yang Jea, Wiliam P. LePera, Hung Q. Thai, Hanhong Xue, Zhi Zhang
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Publication number: 20160034313Abstract: A method, apparatus and program product utilize an empirical approach to determine the locations of one or more IO adapters in an HPC environment. Performance tests may be run using a plurality of candidate mappings that map IO adapters to various locations in the HPC environment, and based upon the results of such testing, speculative adapter affinity information may be generated that assigns one or more IO adapters to one or more locations to optimize adapter affinity performance for subsequently-executed tasks.Type: ApplicationFiled: October 31, 2014Publication date: February 4, 2016Inventors: Wen C. Chen, Tsai-Yang Jea, Wiliam P. LePera, Hung Q. Thai, Hanhong Xue, Zhi Zhang
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Publication number: 20150222556Abstract: A message flow controller limits a process from passing a new message in a reliable message passing layer from a source node to at least one destination node while a total number of in-flight messages for the process meets a first level limit. The message flow controller limits the new message from passing from the source node to a particular destination node from among a plurality of destination nodes while a total number of in-flight messages to the particular destination node meets a second level limit. Responsive to the total number of in-flight messages to the particular destination node not meeting the second level limit, the message flow controller only sends a new packet from among at least one packet for the new message to the particular destination node while a total number of in-flight packets for the new message is less than a third level limit.Type: ApplicationFiled: April 17, 2015Publication date: August 6, 2015Inventors: UMAN CHAN, DERYCK X. HONG, TSAI-YANG JEA, CHULHO KIM, ZENON J. PIATEK, HUNG Q. THAI, ABHINAV VISHNU, HANHONG XUE
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Patent number: 9049112Abstract: A message flow controller limits a process from passing a new message in a reliable message passing layer from a source node to at least one destination node while a total number of in-flight messages for the process meets a first level limit. The message flow controller limits the new message from passing from the source node to a particular destination node from among a plurality of destination nodes while a total number of in-flight messages to the particular destination node meets a second level limit. Responsive to the total number of in-flight messages to the particular destination node not meeting the second level limit, the message flow controller only sends a new packet from among at least one packet for the new message to the particular destination node while a total number of in-flight packets for the new message is less than a third level limit.Type: GrantFiled: April 5, 2013Date of Patent: June 2, 2015Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Uman Chan, Deryck X. Hong, Tsai-Yang Jea, Chulho Kim, Zenon J. Piatek, Hung Q. Thai, Abhinav Vishnu, Hanhong Xue
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Patent number: 8607199Abstract: A technique for debugging code during runtime includes providing, from an outside process, a trigger to a daemon. In this case, the trigger is associated with a registered callback function. The trigger is then provided, from the daemon, to one or more designated tasks of a job. The registered callback function (that is associated with the trigger) is then executed by the one or more designated tasks. Execution results of the executed registered callback function are then returned (from the one or more designated tasks) to the daemon.Type: GrantFiled: December 16, 2009Date of Patent: December 10, 2013Assignee: International Business Machines CorporationInventors: Chulho Kim, Hanhong Xue, Tsai-Yang Jea, Hung Q. Thai
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Publication number: 20130247069Abstract: In a parallel computer executing a parallel application, where the parallel computer includes a number of compute nodes, with each compute node including one or more computer processors, the parallel application including a number of processes, and one or more of the processes executing a barrier operation, creating a checkpoint of a parallel application includes: maintaining, by each computer processor, global barrier operation state information, the global barrier operation state information includes an aggregation of each process's barrier operation state information; invoking, for each process of the parallel application, a checkpoint handler; saving, by each process's checkpoint handler as part of a checkpoint for the parallel application, the process's barrier operation state information; and exiting, by each process, the checkpoint handler.Type: ApplicationFiled: March 15, 2012Publication date: September 19, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Wen Chen, Tsai-Yang Jea, William P. Lepera, Serban C. Maerean, Hung Q. Thai, Hanhong Xue, Zhi Zhang
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Publication number: 20130232262Abstract: A message flow controller limits a process from passing a new message in a reliable message passing layer from a source node to at least one destination node while a total number of in-flight messages for the process meets a first level limit. The message flow controller limits the new message from passing from the source node to a particular destination node from among a plurality of destination nodes while a total number of in-flight messages to the particular destination node meets a second level limit. Responsive to the total number of in-flight messages to the particular destination node not meeting the second level limit, the message flow controller only sends a new packet from among at least one packet for the new message to the particular destination node while a total number of in-flight packets for the new message is less than a third level limit.Type: ApplicationFiled: April 5, 2013Publication date: September 5, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: UMAN CHAN, DERYCK X. HONG, TSAI-YANG JEA, CHULHO KIM, ZENON J. PIATEK, HUNG Q. THAI, ABHINAV VISHNU, HANHONG XUE
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Patent number: 8452888Abstract: A message flow controller limits a process from passing a new message in a reliable message passing layer from a source node to at least one destination node while a total number of in-flight messages for the process meets a first level limit. The message flow controller limits the new message from passing from the source node to a particular destination node from among a plurality of destination nodes while a total number of in-flight messages to the particular destination node meets a second level limit. Responsive to the total number of in-flight messages to the particular destination node not meeting the second level limit, the message flow controller only sends a new packet from among at least one packet for the new message to the particular destination node while a total number of in-flight packets for the new message is less than a third level limit.Type: GrantFiled: July 22, 2010Date of Patent: May 28, 2013Assignee: International Business Machines CorporationInventors: Uman Chan, Deryck X Hong, Tsai-Yang Jea, Chulho Kim, Zenon J Piatek, Hung Q Thai, Abhinav Vishnu, Hanhong Xue
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Publication number: 20120023304Abstract: A message flow controller limits a process from passing a new message in a reliable message passing layer from a source node to at least one destination node while a total number of in-flight messages for the process meets a first level limit. The message flow controller limits the new message from passing from the source node to a particular destination node from among a plurality of destination nodes while a total number of in-flight messages to the particular destination node meets a second level limit. Responsive to the total number of in-flight messages to the particular destination node not meeting the second level limit, the message flow controller only sends a new packet from among at least one packet for the new message to the particular destination node while a total number of in-flight packets for the new message is less than a third level limit.Type: ApplicationFiled: July 22, 2010Publication date: January 26, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: UMAN CHAN, DERYCK X. HONG, TSAI-YANG JEA, CHULHO KIM, ZENON J. PIATEK, HUNG Q. THAI, ABHINAV VISHNU, HANHONG XUE
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Publication number: 20110145791Abstract: A technique for debugging code during runtime includes providing, from an outside process, a trigger to a daemon. In this case, the trigger is associated with a registered callback function. The trigger is then provided, from the daemon, to one or more designated tasks of a job. The registered callback function (that is associated with the trigger) is then executed by the one or more designated tasks. Execution results of the executed registered callback function are then returned (from the one or more designated tasks) to the daemon.Type: ApplicationFiled: December 16, 2009Publication date: June 16, 2011Applicant: International Business Machines CorporationInventors: CHULHO KIM, HANHONG XUE, TSAI-YANG JEA, HUNG Q. THAI
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Publication number: 20100153964Abstract: Load balancing of adapters on a multi-adapter node of a communications environment. A task executing on the node selects an adapter resource unit to be used as its primary port for communications. The selection is based on the task's identifier, and facilitates a balancing of the load among the adapter resource units. Using the task's identifier, an index is generated that is used to select a particular adapter resource unit from a list of adapter resource units assigned to the task. The generation of the index is efficient and predictable.Type: ApplicationFiled: December 15, 2008Publication date: June 17, 2010Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Hung Q. Thai, Hanhong Xue