Method and apparatus for using cache memory in a system that supports a low power state
    1.
    发明授权
    Method and apparatus for using cache memory in a system that supports a low power state 有权
    在支持低功率状态的系统中使用高速缓冲存储器的方法和装置

    公开(公告)号:US08640005B2

    公开(公告)日:2014-01-28

    申请号:US12785182

    申请日:2010-05-21

    IPC分类号: G11C29/00

    CPC分类号: G06F11/1064

    摘要: A cache memory system uses multi-bit Error Correcting Code (ECC) with a low storage and complexity overhead. In an embodiment, error correction logic may include a first error correction logic to determine a number of errors in data that is stored in a cache line of a cache memory, and a second error correction logic to receive the data from the first error correction logic if the number of errors is determined to be greater than one and to perform error correction responsive to receipt of the data. The cache memory system can be operated at very low idle power, without dramatically increasing transition latency to and from an idle power state due to loss of state. Other embodiments are described and claimed.

    摘要翻译: 高速缓冲存储器系统使用具有低存储和复杂度开销的多位错误校正码(ECC)。 在一个实施例中,纠错逻辑可以包括:第一纠错逻辑,用于确定存储在高速缓存存储器的高速缓存行中的数据中的错误数;以及第二纠错逻辑,用于从第一纠错逻辑接收数据 如果错误的数量被确定为大于1,并且响应于数据的接收执行错误校正。 高速缓冲存储器系统可以在非常低的空闲功率下操作,而不会由于状态的损失而急剧增加到空闲功率状态的转换等待时间。 描述和要求保护其他实施例。

    PERFORMING MULTI-BIT ERROR CORRECTION ON A CACHE LINE
    3.
    发明申请
    PERFORMING MULTI-BIT ERROR CORRECTION ON A CACHE LINE 有权
    在缓存行上执行多位错误校正

    公开(公告)号:US20100146368A1

    公开(公告)日:2010-06-10

    申请号:US12331255

    申请日:2008-12-09

    IPC分类号: H03M13/05 G06F11/10

    摘要: A processor may comprise a cache, which may be divided into a first and second section while the processor operates in a low-power mode. A cache line of the first section may be fragmented into segments. A first encoder may generate first data bits and check bits while encoding a first portion of a data stream and a second encoder may, separately, generate second data bits and check bits while encoding a second portion of the data stream. The first data bits may be stored in a first segment of the first section and the check bits in a first portion of the second section that is associated with the first segment. The first decoder may correct errors in multiple bit positions within the first data bits using the check bits stored in the first portion and the second decoder may, separately, decode the second data bits using the second set of check bits.

    摘要翻译: 处理器可以包括高速缓存,其可以在处理器以低功率模式操作时被分成第一和第二部分。 第一部分的高速缓存行可以被分段成段。 第一编码器可以在对数据流的第一部分进行编码的同时产生第一数据位和校验位,并且第二编码器可以分别在编码数据流的第二部分时生成第二数据位和校验位。 第一数据位可以存储在第一部分的第一部分中,并且与第一部分相关联的第二部分的第一部分中的校验位。 第一解码器可以使用存储在第一部分中的校验位来校正第一数据位中的多位位置中的错误,并且第二解码器可以单独地使用第二组校验位对第二数据位进行解码。

    Performing multi-bit error correction on a cache line
    4.
    发明授权
    Performing multi-bit error correction on a cache line 有权
    在缓存行上执行多位错误校正

    公开(公告)号:US08245111B2

    公开(公告)日:2012-08-14

    申请号:US12331255

    申请日:2008-12-09

    IPC分类号: G06F11/00

    摘要: A processor may comprise a cache, which may be divided into a first and second section while the processor operates in a low-power mode. A cache line of the first section may be fragmented into segments. A first encoder may generate first data bits and check bits while encoding a first portion of a data stream and a second encoder may, separately, generate second data bits and check bits while encoding a second portion of the data stream. The first data bits may be stored in a first segment of the first section and the check bits in a first portion of the second section that is associated with the first segment. The first decoder may correct errors in multiple bit positions within the first data bits using the check bits stored in the first portion and the second decoder may, separately, decode the second data bits using the second set of check bits.

    摘要翻译: 处理器可以包括高速缓存,其可以在处理器以低功率模式操作时被分成第一和第二部分。 第一部分的高速缓存行可以被分段成段。 第一编码器可以在对数据流的第一部分进行编码的同时产生第一数据位和校验位,并且第二编码器可以分别在编码数据流的第二部分时生成第二数据位和校验位。 第一数据位可以存储在第一部分的第一部分中,并且与第一部分相关联的第二部分的第一部分中的校验位。 第一解码器可以使用存储在第一部分中的校验位来校正第一数据位中的多位位置中的错误,并且第二解码器可以单独地使用第二组校验位对第二数据位进行解码。

    Dynamically allocatable memory error mitigation
    5.
    发明授权
    Dynamically allocatable memory error mitigation 有权
    动态分配内存错误缓解

    公开(公告)号:US08806285B2

    公开(公告)日:2014-08-12

    申请号:US13485474

    申请日:2012-05-31

    IPC分类号: G11C29/00 G06F11/00

    摘要: Embodiments include a method and system of dynamically allocatable memory error mitigation. In one embodiment, a system applies an error mitigation mechanism to one of multiple groups of memory units, wherein the one group is in active use during an error test of a second group of memory units. The system deactivates and tests the second group of memory units for errors. In response to detecting an error in a memory unit of the second group, the system applies, to the memory unit of the second group having the error, the error mitigation mechanism for active use. The system then activates the second group of memory units with the error mitigation mechanism applied to the memory unit of the second group having the error.

    摘要翻译: 实施例包括动态可分配的存储器错误缓解的方法和系统。 在一个实施例中,系统将错误缓解机制应用于多组存储器单元中的一组,其中在第二组存储器单元的错误测试期间,一组正在使用。 系统停用并测试第二组存储器单元的错误。 响应于检测到第二组的存储器单元中的错误,系统向具有错误的第二组的存储器单元应用用于主动使用的错误减轻机制。 然后,该系统激活第二组存储器单元,其中将误差减轻机制应用于具有该错误的第二组的存储器单元。

    DYNAMICALLY ALLOCATABLE MEMORY ERROR MITIGATION
    6.
    发明申请
    DYNAMICALLY ALLOCATABLE MEMORY ERROR MITIGATION 有权
    动态的内存不正确的缓解

    公开(公告)号:US20130326263A1

    公开(公告)日:2013-12-05

    申请号:US13485474

    申请日:2012-05-31

    IPC分类号: G06F11/20

    摘要: Embodiments include a method and system of dynamically allocatable memory error mitigation. In one embodiment, a system applies an error mitigation mechanism to one of multiple groups of memory units, wherein the one group is in active use during an error test of a second group of memory units. The system deactivates and tests the second group of memory units for errors. In response to detecting an error in a memory unit of the second group, the system applies, to the memory unit of the second group having the error, the error mitigation mechanism for active use. The system then activates the second group of memory units with the error mitigation mechanism applied to the memory unit of the second group having the error.

    摘要翻译: 实施例包括动态可分配的存储器错误缓解的方法和系统。 在一个实施例中,系统将错误缓解机制应用于多组存储器单元中的一组,其中在第二组存储器单元的错误测试期间,一组正在使用。 系统停用并测试第二组存储器单元的错误。 响应于检测到第二组的存储器单元中的错误,系统向具有错误的第二组的存储器单元应用用于主动使用的错误减轻机制。 然后,该系统激活第二组存储器单元,其中将误差减轻机制应用于具有该错误的第二组的存储器单元。

    SYSTEM AND METHOD FOR THREAD SCHEDULING ON RECONFIGURABLE PROCESSOR CORES
    7.
    发明申请
    SYSTEM AND METHOD FOR THREAD SCHEDULING ON RECONFIGURABLE PROCESSOR CORES 有权
    用于可重构加工器线上的螺纹调度的系统和方法

    公开(公告)号:US20150095918A1

    公开(公告)日:2015-04-02

    申请号:US14040142

    申请日:2013-09-27

    IPC分类号: G06F9/50 G06F12/08

    摘要: Systems and methods for efficiently utilizing reconfigurable processor cores. An example processing system includes, for example, a control register comprising a plurality of inhibit bits, each inhibit bit indicating whether a corresponding processor core is allowed to merge with other processor cores; and dynamic core reallocation logic to temporarily merge a first processor core and a second processor core to speed execution of a first thread executed on the first processor core responsive to determining that a second thread executed on the second processor core has completed execution prior to a quantum associated with the second thread being reached and to determining that the inhibit bits indicate that the first and second cores may be merged.

    摘要翻译: 有效利用可重构处理器核心的系统和方法。 示例性处理系统包括例如包括多个禁止位的控制寄存器,每个禁止位指示是否允许相应的处理器核与其他处理器内核合并; 以及动态核心重新分配逻辑,用于临时合并第一处理器核心和第二处理器核心,以响应于确定在第二处理器核心上执行的第二线程在量化之前已经完成执行,以加速在第一处理器核心上执行的第一线程的执行 与第二线程相关联并且确定禁止比特指示第一和第二核可以被合并。

    Hardware support for thread scheduling on multi-core processors
    8.
    发明授权
    Hardware support for thread scheduling on multi-core processors 有权
    硬件支持多核处理器上的线程调度

    公开(公告)号:US08276142B2

    公开(公告)日:2012-09-25

    申请号:US12587597

    申请日:2009-10-09

    IPC分类号: G06F9/46

    CPC分类号: G06F9/505 G06F2209/501

    摘要: A method, device, and system are disclosed. In one embodiment the method includes scheduling a thread to run on first core of a multi-core processor. The determination as to which core the thread is scheduled on uses one or more processes. These processes may include ranking all of the cores specific to a workload of the thread, establishing a current utilization of each core of the multi-core processor, and calculating an inter-core migration cost for the thread.

    摘要翻译: 公开了一种方法,装置和系统。 在一个实施例中,该方法包括调度在多核处理器的第一核上运行的线程。 对线程安排的核心的确定使用一个或多个进程。 这些过程可以包括对线程工作负载特有的所有核心进行排序,建立多核处理器的每个核心的当前利用率,以及计算线程的核心间迁移成本。

    Hardware support for thread scheduling on multi-core processors
    9.
    发明申请
    Hardware support for thread scheduling on multi-core processors 有权
    硬件支持多核处理器上的线程调度

    公开(公告)号:US20110088041A1

    公开(公告)日:2011-04-14

    申请号:US12587597

    申请日:2009-10-09

    IPC分类号: G06F9/46

    CPC分类号: G06F9/505 G06F2209/501

    摘要: A method, device, and system are disclosed. In one embodiment the method includes scheduling a thread to run on first core of a multi-core processor. The determination as to which core the thread is scheduled on uses one or more processes. These processes may include ranking all of the cores specific to a workload of the thread, establishing a current utilization of each core of the multi-core processor, and calculating an inter-core migration cost for the thread.

    摘要翻译: 公开了一种方法,装置和系统。 在一个实施例中,该方法包括调度在多核处理器的第一核上运行的线程。 对线程安排的核心的确定使用一个或多个进程。 这些过程可以包括对线程工作负载特有的所有核心进行排序,建立多核处理器的每个核心的当前利用率,以及计算线程的核心间迁移成本。

    SELECTIVE ERROR CORRECTION IN MEMORY TO REDUCE POWER CONSUMPTION
    10.
    发明申请
    SELECTIVE ERROR CORRECTION IN MEMORY TO REDUCE POWER CONSUMPTION 有权
    存储器中的选择性错误校正降低功耗

    公开(公告)号:US20140149822A1

    公开(公告)日:2014-05-29

    申请号:US13688028

    申请日:2012-11-28

    IPC分类号: G06F11/08

    CPC分类号: G06F11/08 G06F11/1052

    摘要: Embodiments of apparatus, methods, systems, and devices are described herein for selective error correction in memory with multiple operation modes. In various embodiments, an error correction block (e.g., of a memory controller) may be configured to perform error correction on data read from a first portion of a memory based on a corresponding error correction code read from a second portion of the memory, and to calculate and store the error correction code. A control block coupled to the error correction block may be configured to selectively enable/disable the error correction block to perform the error correction, and to calculate and store the error correction code, based at least in part on a current operation mode of the memory.

    摘要翻译: 本文描述了用于具有多种操作模式的存储器中的选择性误差校正的装置,方法,系统和装置的实施例。 在各种实施例中,错误校正块(例如,存储器控制器)可以被配置为基于从存储器的第二部分读取的对应的纠错码对存储器的第一部分读取的数据执行纠错,以及 计算和存储纠错码。 耦合到纠错块的控制块可以被配置为至少部分地基于存储器的当前操作模式来选择性地启用/禁用纠错块来执行纠错,并且计算和存储纠错码 。