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1.发明申请METHOD FOR SHARING REFERENCE DATA AMONG APPLICATION PROGRAMS EXECUTED BY A PLURALITY OF VIRTUAL MACHINES AND REFERENCE DATA MANAGEMENT APPARATUS AND SYSTEM THEREOF 有权在多个虚拟机执行的应用程序和参考数据管理装置及其系统之间共享参考数据的方法公开(公告)号：US20150356003A1
公开(公告)日：2015-12-10
申请号：US14734758
申请日：2015-06-09
Inventor： Kwang-Won KOH , Kang-Ho KIM , Seung-Hyub JEON , Seung-Jo BAE
CPC classification number: G06F12/023 , G06F9/45533 , G06F9/45558 , G06F12/10 , G06F17/30 , G06F2009/45583 , G06F2212/1044 , G06F2212/151 , G06F2212/657
Abstract: Apparatus, method and systems for managing reference data, which can prevent duplicated data loading of reference data and eliminate redundancy of I/O operations for loading of the same reference data required by different virtual machines present in the same physical node to reduce use memory and I/O through sharing virtual machine leveled memories, are provided.
Abstract translation: 用于管理参考数据的装置，方法和系统，其可以防止参考数据的重复数据加载并且消除I / O操作的冗余以加载存在于同一物理节点中的不同虚拟机所需的相同参考数据，以减少使用存储器和 提供I / O通过共享虚拟机级别的内存。
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公开(公告)号：US20240295987A1
公开(公告)日：2024-09-05
申请号：US18660095
申请日：2024-05-09
Inventor： Kwang-Won KOH , Kang Ho KIM , Changdae KIM , Taehoon KIM
IPC: G06F3/06
CPC classification number: G06F3/0656 , G06F3/0604 , G06F3/0679
Abstract: A memory access method and device are provided. A memory access method may include: identifying, when an access to a page of a remote memory occurs, a type of the access; allocating a sparse buffer when the access is a sparse write; storing data for the sparse write in the sparse buffer; storing an address for the sparse write as a key and the sparse buffer as a value in a buffer table; and updating an instruction pointer to point to a next instruction.
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公开(公告)号：US20230305964A1
公开(公告)日：2023-09-28
申请号：US18126229
申请日：2023-03-24
Inventor： Tae-Hoon KIM , Kwang-Won KOH , Kang-Ho KIM , Chang-Dae KIM , Sang-Ho EOM
IPC: G06F12/0862 , G06F12/0864
CPC classification number: G06F12/0862 , G06F12/0864
Abstract: Disclosed herein are a method and apparatus for verifying integrity in a memory-disaggregated environment. The method for verifying integrity in a memory-disaggregated environment includes receiving write data and multiple hash values generated based on write data from a remote memory, and verifying integrity of the write data based on the write data and the hash values, wherein verifying the integrity of the write data comprises selecting a hash value for the integrity verification based on an access latency of the remote memory.
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4.发明申请公开(公告)号：US20250077261A1
公开(公告)日：2025-03-06
申请号：US18746307
申请日：2024-06-18
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： Tae-Hoon KIM , Kwang-Won KOH , Chang-Dae KIM , Eun-Ji PAK , Yeon-Jeong JEONG , Sang-Hoon KIM
Abstract: Disclosed herein is a method for improving performance of a hypervisor in a memory disaggregation environment. The method includes allocating memory pages to a virtual machine in preset units, comparing the address range of the page frame to be returned with a preset page size, and removing an address space mapping for the page frame to be returned depending on a result of comparison with the preset page size. Removing the address space mapping comprises removing the address space mapping on the basis of contiguous page frames when the range of the page frame to be returned is equal to or greater than the preset page size.
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公开(公告)号：US20230305721A1
公开(公告)日：2023-09-28
申请号：US18126232
申请日：2023-03-24
Inventor： Chang-Dae KIM , Kwang-Won KOH , Kang-Ho KIM , Tae-Hoon KIM , Sang-Ho EOM
IPC: G06F3/06
CPC classification number: G06F3/0631 , G06F3/0664 , G06F3/0683 , G06F3/0619
Abstract: Disclosed herein is a method for memory management in a memory disaggregation environment. The method includes generating virtual memory based on multiple first memory devices, determining whether a condition for allocation acceleration is satisfied by the first memory devices, and allocating a memory page to the first memory devices based on whether the condition for allocation acceleration is satisfied.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20230176893A1
公开(公告)日：2023-06-08
申请号：US18076163
申请日：2022-12-06
Inventor： Kwang-Won KOH , Kang-Ho KIM , Chang-Dae KIM , Tae-Hoon KIM , Sang-Ho EOM
IPC: G06F9/455
CPC classification number: G06F9/45558 , G06F2009/4557
Abstract: Disclosed herein are a method and apparatus for migrating a virtual machine in a memory-disaggregated environment. The method for migrating a virtual machine in a memory-disaggregated environment includes determining whether to migrate a virtual machine based on a number of accesses to a remote memory, establishing a migration policy for the virtual machine based on a remote memory access pattern, and determining a migration destination node based on the migration policy, wherein the migration policy includes a first migration policy corresponding to a case where the remote memory access pattern is sequential, and a second migration policy corresponding to a case where the remote memory access pattern is non-sequential.
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公开(公告)号：US20230161708A1
公开(公告)日：2023-05-25
申请号：US18158953
申请日：2023-01-24
Inventor： Kwang-Won KOH , Chang-Dae KIM , Kang-Ho KIM
IPC: G06F12/0882 , G06F12/0871 , G06F12/0862 , G06F12/0891 , G06F12/0868
CPC classification number: G06F12/0882 , G06F12/0871 , G06F12/0862 , G06F12/0891 , G06F12/0868
Abstract: Disclosed herein is an apparatus for managing disaggregated memory, which is located in a virtual machine in a physical node. The apparatus is configured to select, depending on the proportion of valid pages, direct transfer between remote memory units or indirect transfer via local memory for each of the memory pages of the source remote memory to be migrated, among at least one remote memory unit used by the virtual machine, to transfer the memory pages of the source remote memory to target remote memory based on the direct transfer or the indirect transfer, and to release the source remote memory.
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公开(公告)号：US20220197764A1
公开(公告)日：2022-06-23
申请号：US17542324
申请日：2021-12-03
Inventor： SUNGIK JUN , Kwang-Won KOH , Kang Ho KIM , Changdae KIM , Taehoon KIM
Abstract: Disclosed is a quantum diagnostic circuit, which includes an input unit having an input of at least first to fourth qubits, a diagnostic circuit unit receiving the first to fourth qubits from the input unit and providing a quantum superposition and a quantum entanglement, and an output unit receiving an output of the diagnostic circuit unit and determining whether the output is in a Bell-state, and the diagnostic circuit unit includes a Hadamard gate processing the first qubit to provide the quantum superposition of the first to fourth qubits, a first CNOT gate providing the quantum entanglement between an output of the Hadamard gate and the second qubit, a second CNOT gate providing the quantum entanglement between an output of the first CNOT gate and the third qubit, and a third CNOT gate providing the quantum entanglement between an output of the second CNOT gate and the fourth qubit.
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公开(公告)号：US20210287760A1
公开(公告)日：2021-09-16
申请号：US17070452
申请日：2020-10-14
Inventor： Changdae KIM , Kwang-Won KOH , Kang Ho KIM
IPC: G16B30/10
Abstract: An apparatus for genome sequence alignment attempts a search for the hash tables to align a target nucleotide sequence, from a hash table having a large seed size to a hash table having a small seed size, and when there is at least one matched seed to the target nucleotide sequence on a hash table, aligns the target nucleotide sequence by using candidate positions from the hash table without further hash table searching.
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公开(公告)号：US20200319939A1
公开(公告)日：2020-10-08
申请号：US16836246
申请日：2020-03-31
Inventor： Kang-Ho KIM , Kwang-Won KOH , Hong-Yeon KIM , Baik-Song AN , Sang-Min LEE
Abstract: Disclosed herein are a distributed system and a method for operating the distributed system. The method for operating a distributed system including a server and multiple clients includes acquiring, by a first client of the multiple clients, a lock on a shared resource using a first table of the server and a second table of the client, and releasing, by the first client, a lock on the shared resource using the first table and the second table, wherein the first table is a lock (DSLock) table for storing information about a distributed shared resource, and the second table is a data structure (DSLock node) table for a lock request.
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