公开(公告)号：US20160371196A1

公开(公告)日：2016-12-22

申请号：US15178184

申请日：2016-06-09

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kwang Won KOH

IPC: G06F12/10

CPC classification number: G06F12/1009 ,  G06F12/1027 ,  G06F2212/682

Abstract: A memory management unit MMU for managing virtual memory for a plurality of cores includes a plurality of translation lookaside buffers TLBs each corresponding to each of the cores; a plurality of page tables each corresponding to each of the cores and to each of the TLBs, and each synchronized with a corresponding TLB, a meta page including virtual page-physical page mapping information included in the plurality of page tables, one of the plurality of page tables being a main page table; and the meta page including a shared bit field indicating whether or not the virtual page-physical page mapping information is stored in the plurality of TLBs.

Abstract translation: 用于管理多个核心的虚拟存储器的存储器管理单元MMU包括每个对应于每个核的多个翻译后备缓冲器TLB; 多个页表，每个页表各自对应于每个核和每个TLB，并且各自与相应的TLB同步;元​​页，其包括多个页表中包括的虚页页 - 物理页映射信息，多个页表中的一个 的页表是主页表; 并且所述元页面包括指示所述虚拟页面 - 物理页面映射信息是否存储在所述多个TLB中的共享位字段。

公开(公告)号：US20170269966A1

公开(公告)日：2017-09-21

申请号：US15462683

申请日：2017-03-17

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kang Ho KIM ,  Kwang Won KOH ,  Jin Mee KIM ,  Jeong Hwan LEE ,  Seung Hyub JEON ,  Sung In JUNG ,  Yeon Jeong JEONG ,  Seung Jun CHA

IPC: G06F9/48 ,  G06F9/50 ,  G06F9/54

CPC classification number: G06F9/4881 ,  G06F1/329 ,  G06F9/5027 ,  G06F9/54 ,  G06F2209/502

Abstract: Provided is a method of scheduling threads in a many-cores system. The method includes generating a thread map where a connection relationship between a plurality of threads is represented by a frequency of inter-process communication (IPC) between threads, generating a core map where a connection relationship between a plurality of cores is represented by a hop between cores, and respectively allocating the plurality of threads to the plurality of cores defined by the core map, based on a thread allocation policy defining a mapping rule between the thread map and the core map.

公开(公告)号：US20190138341A1

公开(公告)日：2019-05-09

申请号：US16185833

申请日：2018-11-09

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kwang Won KOH ,  Kang Ho KIM

IPC: G06F9/455 ,  G06F12/109 ,  G06F12/02

CPC classification number: G06F9/45558 ,  G06F12/0246 ,  G06F12/109 ,  G06F2009/45583 ,  G06F2009/45591 ,  G06F2212/1016 ,  G06F2212/151 ,  G06F2212/152 ,  G06F2212/7201

Abstract: The preset specification provides a method of managing a disaggregated memory in a virtual system. Herein, the disaggregated memory managing method includes: detecting a memory access pattern in a virtual machine node based on an operation of a virtual machine; and performing a memory operation by using a memory block in consideration of the memory access pattern, wherein the memory access pattern is variably set based on a time at which the operation of the virtual machine is performed, and the memory block dynamically changes in size based on the memory access pattern.

公开(公告)号：US20190114079A1

公开(公告)日：2019-04-18

申请号：US16162107

申请日：2018-10-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kang Ho KIM ,  Kwang Won KOH

IPC: G06F3/06 ,  G06F9/455

Abstract: Disclosed is a method of managing a disaggregated memory. According to the present disclosure, the method includes: assigning at least one memory page to a local memory and a remote memory; checking a request for access to the memory page; checking whether a target performance ratio required in service is satisfied or not when the memory page requested to be accessed is assigned to the remote memory; predicting a size of the local memory on the basis of an LRU distance-based histogram when the target performance ratio is not satisfied; and reassigning the memory page requested to be accessed in consideration of the predicted size of the local memory.

公开(公告)号：US20170329642A1

公开(公告)日：2017-11-16

申请号：US15234785

申请日：2016-08-11

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jin Mee KIM ,  Kwang Won KOH ,  Kang Ho KIM ,  Jeong Hwan LEE ,  Seung Hyub JEON ,  Sung In JUNG ,  Yeon Jeong JEONG ,  Seung Jun CHA

IPC: G06F9/50 ,  G06F11/07

Abstract: Provided is a many-core system including a resource unit including a resource needed for execution of an operating system and a resource needed for execution of a lightweight kernel, a programing constructing unit configured to convert an input program into an application program and to load the application program into the resource unit, a run-time management unit configured to manage a running environment for executing the application program, and a self-organization management unit configured to monitor the application program and the resources in the resource unit, to dynamically adjust the running environment to prevent a risk factor from occurring during the execution of the application program, and to cure a risk factor which occurred.