Patents by Inventor Seok-Woo SONG
Seok-Woo SONG 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: 10585709Abstract: An apparatus and a job scheduling method are provided. For example, the apparatus is a multi-core processing apparatus. The apparatus and method minimize performance degradation of a core caused by sharing resources by dynamically managing a maximum number of jobs assigned to each core of the apparatus. The apparatus includes at least one core including an active cycle counting unit configured to store a number of active cycles and a stall cycle counting unit configured to store a number of stall cycles and a job scheduler configured to assign at least one job to each of the at least one core, based on the number of active cycles and the number of stall cycles. When the ratio of the number of stall cycles to a number of active cycles for a core is too great, the job scheduler assigns fewer jobs to that core to improve performance.Type: GrantFiled: July 15, 2015Date of Patent: March 10, 2020Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Woong Seo, Yeon-Gon Cho, Soo-Jung Ryu, Seok-Woo Song, John Dongjun Kim, Min-Seok Lee
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Patent number: 9645855Abstract: An apparatus and a job scheduling method are provided. For example, the apparatus is a multi-core processing apparatus. The apparatus and method minimize performance degradation of a core caused by sharing resources by dynamically managing a maximum number of jobs assigned to each core of the apparatus. The apparatus includes at least one core including an active cycle counting unit configured to store a number of active cycles and a stall cycle counting unit configured to store a number of stall cycles and a job scheduler configured to assign at least one job to each of the at least one core, based on the number of active cycles and the number of stall cycles. When the ratio of the number of stall cycles to a number of active cycles for a core is too great, the job scheduler assigns fewer jobs to that core to improve performance.Type: GrantFiled: May 13, 2014Date of Patent: May 9, 2017Assignees: SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Woong Seo, Yeon-Gon Cho, Soo-Jung Ryu, Seok-Woo Song, John Dongjun Kim, Min-Seok Lee
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Patent number: 9405349Abstract: A multi-core apparatus includes cores each including an active cycle counting unit configured to store an active cycle count, and a stall cycle counting unit configured to store a stall cycle count. The multi-core apparatus further includes a job scheduler configured to determine an optimal number of cores in an active state based on state information received from each of the cores, and adjust power to maintain the optimal number of cores.Type: GrantFiled: May 27, 2014Date of Patent: August 2, 2016Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Woong Seo, Yeon-Gon Cho, Soo-Jung Ryu, Seok-Woo Song, John Dongjun Kim, Min-Seok Lee
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Patent number: 9274845Abstract: An apparatus and a job scheduling method are provided. For example, the apparatus is a multi-core processing apparatus. The apparatus and method minimize performance degradation of a core caused by sharing resources by dynamically managing a maximum number of jobs assigned to each core of the apparatus. The apparatus includes at least one core including an active cycle counting unit configured to store a number of active cycles and a stall cycle counting unit configured to store a number of stall cycles and a job scheduler configured to assign at least one job to each of the at least one core, based on the number of active cycles and the number of stall cycles. When the ratio of the number of stall cycles to a number of active cycles for a core is too great, the job scheduler assigns fewer jobs to that core to improve performance.Type: GrantFiled: January 27, 2015Date of Patent: March 1, 2016Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Woong Seo, Yeon-Gon Cho, Soo-Jung Ryu, Seok-Woo Song, John Dongjun Kim, Min-Seok Lee
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Publication number: 20150331719Abstract: An apparatus and a job scheduling method are provided. For example, the apparatus is a multi-core processing apparatus. The apparatus and method minimize performance degradation of a core caused by sharing resources by dynamically managing a maximum number of jobs assigned to each core of the apparatus. The apparatus includes at least one core including an active cycle counting unit configured to store a number of active cycles and a stall cycle counting unit configured to store a number of stall cycles and a job scheduler configured to assign at least one job to each of the at least one core, based on the number of active cycles and the number of stall cycles. When the ratio of the number of stall cycles to a number of active cycles for a core is too great, the job scheduler assigns fewer jobs to that core to improve performance.Type: ApplicationFiled: July 15, 2015Publication date: November 19, 2015Applicants: Korea Advanced Institute of Science and Technology, SAMSUNG ELECTRONICS CO., LTD.Inventors: Woong SEO, Yeon-Gon CHO, Soo-Jung RYU, Seok-Woo SONG, JOHN Dongjun KIM, Min-Seok LEE
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Publication number: 20150143383Abstract: An apparatus and a job scheduling method are provided. For example, the apparatus is a multi-core processing apparatus. The apparatus and method minimize performance degradation of a core caused by sharing resources by dynamically managing a maximum number of jobs assigned to each core of the apparatus. The apparatus includes at least one core including an active cycle counting unit configured to store a number of active cycles and a stall cycle counting unit configured to store a number of stall cycles and a job scheduler configured to assign at least one job to each of the at least one core, based on the number of active cycles and the number of stall cycles. When the ratio of the number of stall cycles to a number of active cycles for a core is too great, the job scheduler assigns fewer jobs to that core to improve performance.Type: ApplicationFiled: January 27, 2015Publication date: May 21, 2015Applicants: Korea Advanced Institute of Science and Technology, SAMSUNG ELECTRONICS CO., LTD.Inventors: Woong SEO, Yeon-Gon CHO, Soo-Jung RYU, Seok-Woo SONG, JOHN Dongjun KIM, Min-Seok LEE
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Publication number: 20140359335Abstract: A multi-core apparatus includes cores each including an active cycle counting unit configured to store an active cycle count, and a stall cycle counting unit configured to store a stall cycle count. The multi-core apparatus further includes a job scheduler configured to determine an optimal number of cores in an active state based on state information received from each of the cores, and adjust power to maintain the optimal number of cores.Type: ApplicationFiled: May 27, 2014Publication date: December 4, 2014Applicants: Korea Advanced Institute of Science and Technology, Samsung Electronics Co., Ltd.Inventors: Woong SEO, Yeon-Gon CHO, Soo-Jung RYU, Seok-Woo SONG, John Dongjun KIM, Min-Seok LEE
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Publication number: 20140337849Abstract: An apparatus and a job scheduling method are provided. For example, the apparatus is a multi-core processing apparatus. The apparatus and method minimize performance degradation of a core caused by sharing resources by dynamically managing a maximum number of jobs assigned to each core of the apparatus. The apparatus includes at least one core including an active cycle counting unit configured to store a number of active cycles and a stall cycle counting unit configured to store a number of stall cycles and a job scheduler configured to assign at least one job to each of the at least one core, based on the number of active cycles and the number of stall cycles. When the ratio of the number of stall cycles to a number of active cycles for a core is too great, the job scheduler assigns fewer jobs to that core to improve performance.Type: ApplicationFiled: May 13, 2014Publication date: November 13, 2014Applicants: Korea Advanced Institute of Science and Technology, Samsung Electronics Co., Ltd.Inventors: Woong SEO, Yeon-Gon CHO, Soo-Jung RYU, Seok-Woo SONG, John Dongjun KIM, Min-Seok LEE