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公开(公告)号：US20250147680A1
公开(公告)日：2025-05-08
申请号：US19015326
申请日：2025-01-09
Inventor： Chang-Dae KIM , Kwang-Won KOH , Kang-Ho KIM , Tae-Hoon KIM , Sang-Ho EOM
IPC: G06F3/06
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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12.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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14.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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Patent Agency Ranking
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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19.发明申请DATA PROCESSING APPARATUS FOR PIPELINE EXECUTION ACCELERATION AND METHOD THEREOF 有权数据处理装置，用于管道执行加速及其方法公开(公告)号：US20150254116A1
公开(公告)日：2015-09-10
申请号：US14616894
申请日：2015-02-09
Inventor： Kang-Ho KIM , Kwang-Won KOH , Seung-Hyub JEON
IPC: G06F9/54
Abstract: Disclosed herein are a data processing apparatus for pipeline execution acceleration and a method thereof. According to an exemplary embodiment of the present invention, the data processing apparatus for pipeline execution acceleration includes: a processor configured to sequentially execute a first application program and a second application program reading or writing a specific file; and a file system configured to complete a write for a file data for the specific file to a data block previously allocated from the first application program and provide the file data for the specific file to the second application program prior to executing a close call for the specific file from the first application program, when executing a read call for the specific file from the second application program.
Abstract translation: 这里公开了一种用于管道执行加速的数据处理装置及其方法。 根据本发明的示例性实施例，用于流水线执行加速的数据处理装置包括：处理器，被配置为顺序地执行第一应用程序和第二应用程序读取或写入特定文件; 以及文件系统，被配置为完成对所述特定文件的文件数据的写入到先前从所述第一应用程序分配的数据块，并且在执行所述第二应用程序的紧密呼叫之前将所述特定文件的文件数据提供给所述第二应用程序 当从第二应用程序执行特定文件的读取调用时，来自第一应用程序的特定文件。
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