MEMORY CONTROL METHOD AND SYSTEM
    21.
    发明公开
    MEMORY CONTROL METHOD AND SYSTEM 审中-公开
    SPEICHERSTEUERUNGSVERFAHREN UND系统

    公开(公告)号:EP2669805A1

    公开(公告)日:2013-12-04

    申请号:EP11857205.6

    申请日:2011-01-25

    申请人: Fujitsu Limited

    IPC分类号: G06F12/00 G06F9/50

    摘要: Memory access contention by plural devices is prevented. A multi-core processor system (100) at time t3 designated by reference numeral (103) allocates processing executed by an app (#0) to a GPU (106) and allocates processing executed by an app (#1) to a CPU (#0). The multi-core processor system (100) then controls a memory controller (112) so that the GPU (106) accesses a storage area (115#0) as an area for app (#0), via a port (113#0) as a port for app (#0). The multi-core processor system (100) further controls the memory controller (112) so that the CPU (#0) accesses a storage area (115#1) as an area for app (#1), via a port (113#1) that is not the port for app (#0).

    摘要翻译: 防止了多个设备的存储器访问争用。 在时间t3由参考数字(103)指定的多核处理器系统(100)将由应用程序(#0)执行的处理分配给GPU(106),并将由应用(#1)执行的处理分配给CPU( #0)。 多核处理器系统(100)然后控制存储器控制器(112),使得GPU(106)经由端口(113#0)访问作为应用程序(#0)的区域的存储区域(115#0) )作为应用程序(#0)的端口。 多核处理器系统(100)进一步控制存储器控制器(112),使得CPU(#0)经由端口(113#)访问作为应用程序(#1)的区域的存储区域(115#1) 1)这不是app(#0)的端口。

    MULTI-CORE PROCESSOR SYSTEM AND POWER CONTROL METHOD
    22.
    发明公开
    MULTI-CORE PROCESSOR SYSTEM AND POWER CONTROL METHOD 审中-公开
    VERFAHREN ZUR LEISTUNGSREGELUNG的多媒体播放器

    公开(公告)号:EP2657840A1

    公开(公告)日:2013-10-30

    申请号:EP10861165.8

    申请日:2010-12-22

    申请人: Fujitsu Limited

    IPC分类号: G06F9/48

    摘要: When access contention by cores occurs at a device, processing performance is maintained and power consumption is reduced. A CPU (#0), via a detecting unit (307), detects the CPU (#0) and a CPU (#1), which form a predetermined core group that causes access contention at a device (#H0) in a device group (205). The CPU (#0), via an identifying unit (309), identifies the access contention state at the device (#H0) in the device group (205). The CPU (#0), from a clock frequency table (301), extracts according to the access contention state at the device (#H0), a clock frequency for the device (#H0) and a clock frequency for the CPUs (#0) and (#1). The CPU (#0) causes the device (#H0) to operate at the clock frequency for the device (#H0) and causes the CPUs (#0) and (#1) to operate at the clock frequency for the predetermined core group.

    摘要翻译: 当核心访问争用发生在设备时,维护处理性能并降低功耗。 通过检测单元(307),CPU(#0)检测在设备(#H0)中形成访问争用的预定核心组的CPU(#0)和CPU(#1) 组(205)。 经由识别单元(309)的CPU(#0)识别设备组(205)中的设备(#H0)处的访问争用状态。 来自时钟频率表(301)的CPU(#0)根据设备(#H0)的访问竞争状态,设备的时钟频率(#H0)和CPU的时钟频率(# 0)和(#1)。 CPU(#0)使设备(#H0)以设备的时钟频率(#H0)工作,并使CPU(#0)和(#1)以预定核心组的时钟频率工作 。