公开(公告)号：US09645855B2

公开(公告)日：2017-05-09

申请号：US14276522

申请日：2014-05-13

Applicant: Samsung Electronics Co., Ltd. ,  Korea Advanced Institute of Science and Technology

Inventor： Woong Seo ,  Yeon-Gon Cho ,  Soo-Jung Ryu ,  Seok-Woo Song ,  John Dongjun Kim ,  Min-Seok Lee

IPC: G06F9/50 ,  G06F9/46 ,  G06F9/48

CPC classification number: G06F9/505 ,  G06F9/46 ,  G06F9/4881 ,  G06F2209/5022

Abstract: 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.

公开(公告)号：US09298430B2

公开(公告)日：2016-03-29

申请号：US14051910

申请日：2013-10-11

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Jin-Hoo Lee ,  Moo-Kyoung Chung ,  Key-Young Choi ,  Yeon-Gon Cho ,  Soo-Jung Ryu

IPC: G06F9/45

CPC classification number: G06F8/41 ,  G06F8/45

Abstract: A method of compiling a program to be executed on a multicore processor is provided. The method may include generating an initial solution by mapping a task to a source processing element (PE) and a destination PE, and selecting a communication scheme for transmission of the task from the source PE to the destination PE, approximately optimizing the mapping and communication scheme included in the initial solution, and scheduling the task, wherein the communication scheme is designated in a compiling process.

Abstract translation: 提供了一种编译要在多核处理器上执行的程序的方法。 该方法可以包括通过将任务映射到源处理单元（PE）和目的地PE来生成初始解决方案，并且从源PE到目的地PE选择用于传输任务的通信方案，大致优化映射和通信 包括在初始解决方案中，并且调度任务，其中在编译过程中指定通信方案。

公开(公告)号：US09348792B2

公开(公告)日：2016-05-24

申请号：US13892603

申请日：2013-05-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Moo-Kyoung Chung ,  Yeon-Gon Cho ,  Soo-Jung Ryu

IPC: G06F15/78 ,  H03M7/30

CPC classification number: G06F15/7867 ,  H03M7/30 ,  Y02D10/12 ,  Y02D10/13

Abstract: A coarse-grained reconfigurable processor having an improved code compression rate and a code decompression method thereof are provided to reduce a capacity of a configuration memory and reduce power consumption in a processor chip. The coarse-grained reconfigurable processor includes a configuration memory configured to store reconfiguration information including a header storing a compression mode indicator and a compressed code for each of a plurality of units and a body storing at least one uncompressed code, a decompressor configured to specify a code corresponding to each of the plurality of units among the at least one uncompressed code within the body based on the compression mode indicator and the compressed code within the header, and a reconfigurator including a plurality of PEs and configured to reconfigure data paths of the plurality of PEs based on the code corresponding to each unit.

Abstract translation: 提供具有改进的代码压缩率和代码解压缩方法的粗粒度可重构处理器以减少配置存储器的容量并降低处理器芯片中的功耗。 粗粒度可重配置处理器包括：配置存储器，被配置为存储重新配置信息，包括存储多个单元中的每一个的压缩模式指示符和压缩代码的头部，以及存储至少一个未压缩代码的主体;解压缩器，被配置为指定 基于所述标题内的所述压缩模式指示符和所述压缩码，所述对应于所述身体内的所述至少一个未压缩码中的所述多个单元中的每一个的代码，以及包括多个PE的重新配置，并且被配置为重新配置所述多个PE中的数据路径 基于与每个单元相对应的代码。

公开(公告)号：US09274845B2

公开(公告)日：2016-03-01

申请号：US14606395

申请日：2015-01-27

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Korea Advanced Institute of Science and Technology

Inventor： Woong Seo ,  Yeon-Gon Cho ,  Soo-Jung Ryu ,  Seok-Woo Song ,  John Dongjun Kim ,  Min-Seok Lee

IPC: G06F9/46 ,  G06F9/50

CPC classification number: G06F9/505 ,  G06F9/46 ,  G06F9/4881 ,  G06F2209/5022

Abstract: 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.

Abstract translation: 提供了一种装置和作业调度方法。 例如，该装置是多核处理装置。 该装置和方法通过动态地管理分配给设备的每个核心的最大数量的作业来最小化共享资源所引起的核心性能下降。 所述设备包括至少一个核心，其包括被配置为存储多个活动周期的活动周期计数单元和被配置为存储多个失速周期的失速循环计数单元，以及作业调度器，其被配置为将至少一个作业分配给 至少一个核心，基于活动周期的数量和失速周期的数量。 当停顿周期数与核心的活动周期数之比太大时，作业调度程序为该核心分配较少的作业以提高性能。