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    • 91. 发明授权
    • Multi-core system and external input/output bus control method
    • 多核系统和外部输入/输出总线控制方式
    • US08892819B2
    • 2014-11-18
    • US13718292
    • 2012-12-18
    • Fujitsu Limited
    • Koji KuriharaKoichiro YamashitaHiromasa Yamauchi
    • G06F12/00G06F12/08
    • G06F12/0835G06F12/0806G06F12/0811G06F2212/1028G06F2212/502G06F2212/6012Y02D10/13
    • A multi-core system includes processor cores having caches; an external input/output bus connected to the processor cores; memory accessed by the processor cores via the external input/output bus; profile information indicating the volume of a write access to the memory by tasks concurrently allocated to the processor cores and whether a cache miss will occur in a read access to the caches; and an operating system that controls clock frequency of the external input/output bus to be a first frequency, based on the volume of the write access to the memory by the tasks and the bus width of the external input/output bus when a cache miss in read access is judged to not occur in executing the tasks and that controls the clock frequency of the external input/output bus to be a second frequency higher than the first frequency when a cache miss in read access is judged.
    • 多核系统包括具有高速缓存的处理器核心; 连接到处理器核心的外部输入/输出总线; 由处理器内核经由外部输入/输出总线访问的存储器; 简档信息,指示并发分配给处理器核的任务对存储器的写访问量,以及在对高速缓存的读取访问中是否发生高速缓存未命中; 以及操作系统,其将外部输入/输出总线的时钟频率控制为第一频率,所述操作系统基于当高速缓存未命中时任务和对外部输入/输出总线的总线宽度的写访问量 在读取访问被判定为不执行任务时,并且当判断读取访问中的高速缓存未命中时,将外部输入/输出总线的时钟频率控制为高于第一频率的第二频率。
    • 92. 发明申请
    • DATA PROCESSING METHOD
    • 数据处理方法
    • US20140164468A1
    • 2014-06-12
    • US14090430
    • 2013-11-26
    • FUJITSU LIMITED
    • Koichiro YamashitaHiromasa YamauchiTakahisa SuzukiKoji Kurihara
    • H04L29/08
    • H04L67/10H04W4/08H04W84/22
    • A data processing method is executed by a first data processing apparatus, and includes setting based on a size of data that is for executing a predetermined function, a first division number for dividing the data; producing groups of a second division number, each including N (a positive integer) elements by dividing the first division number; assigning a plurality of data processing apparatuses each capable of communicating with the first data processing apparatus, to the groups of the second division number; and assigning sub-data formed by dividing the data by the first division number, to the groups of the second division number.
    • 数据处理方法由第一数据处理装置执行,并且包括基于用于执行预定功能的数据的大小的设置,用于划分数据的第一分割数; 生成第二分割数的组,每组包括通过划分第一分割数的N(正整数)元素; 将能够与第一数据处理装置通信的多个数据处理装置分配给第二分割数的组; 以及将通过将所述数据除以所述第一分割数而形成的子数据分配给所述第二分割数的组。
    • 99. 发明申请
    • INFORMATION PROCESSING APPARATUS, COMPUTER PRODUCT, AND INFORMATION PROCESSING METHOD
    • 信息处理设备,计算机产品和信息处理方法
    • US20130239113A1
    • 2013-09-12
    • US13856775
    • 2013-04-04
    • FUJITSU LIMITED
    • Koji KURIHARAKoichiro YamashitaHiromasa YamauchiTakashisa Suzuki
    • G06F9/46
    • G06F9/46G06F9/52
    • An information processing apparatus includes a memory unit having numbers each specifying an output order and a data memory area corresponding to each number; a setting unit that sets in each data memory area correlating an execution order of a thread with a number specifying the output order, a storage location for a value of a common variable of the thread among threads receiving write requests for the value or the common variable; a first storing unit that stores to the data memory area set for each thread, the value of the common variable for the thread of the execution order corresponding to the number specifying the output order of the data memory area; and a second storing unit that upon completion of ail the threads and In the output order, reads-out each value of the common variable stored to the data memory areas and overwrites a specific storage location.
    • 一种信息处理装置,包括具有各自指定输出顺序的数量的存储器单元和与每个编号对应的数据存储区域; 在每个数据存储区域中设置将线程的执行顺序与指定输出顺序的数字相关联的设置单元,接收针对该值的写入请求的线程的公共变量的值的存储位置或公共变量 ; 存储到针对每个线程设置的数据存储区域的第一存储单元,与指定数据存储区域的输出顺序的数字相对应的执行顺序线程的公共变量的值; 以及第二存储单元,其在完成线程之后,并且在输出顺序中,读出存储到数据存储器区域的公共变量的每个值并覆盖特定的存储位置。