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    • 62. 发明申请
    • MULTI-THREADED PARALLEL PROCESSOR METHODS AND APPARATUS
    • 多螺纹并联处理器方法和装置
    • US20100082951A1
    • 2010-04-01
    • US12630775
    • 2009-12-03
    • John P. BatesAttila Vass
    • John P. BatesAttila Vass
    • G06F9/312
    • G06F9/463G06F9/4881
    • A processor system may implement multiple contexts on one or more processors having a local memory. Code and/or data for first and second contexts may be respectively stored simultaneously in first and second regions of a processor's local memory, storing code and/or data for a second context in a second region of the local memory, the secondary processor may execute the first context while the second context waits. Code and/or data for the first context may be transferred from the first region to the second and code and/or data for the second context may be transferred from the second region to the first, and the processor may execute the second context during a pause or stoppage of execution of the first context. Alternatively, the code and/or data for the second context may be transferred to another processor's local memory.
    • 处理器系统可以在具有本地存储器的一个或多个处理器上实现多个上下文。 第一和第二上下文的代码和/或数据可以分别同时存储在处理器的本地存储器的第一和第二区域中,在本地存储器的第二区域中存储用于第二上下文的代码和/或数据,次要处理器可以执行 第二个上下文等待的第一个上下文。 用于第一上下文的代码和/或数据可以从第一区域传送到第二区域,并且用于第二上下文的代码和/或数据可以从第二区域传送到第一区域,并且处理器可以在 暂停或停止执行第一个上下文。 或者,用于第二上下文的代码和/或数据可以被传送到另一个处理器的本地存储器。
    • 67. 发明授权
    • Atomic operation involving processors with different memory transfer operation sizes
    • 具有不同内存传输操作大小的处理器的原子操作
    • US07398368B2
    • 2008-07-08
    • US11291306
    • 2005-12-01
    • James E. MarrJohn P. BatesAttila VassTatsuya Iwamoto
    • James E. MarrJohn P. BatesAttila VassTatsuya Iwamoto
    • G06F12/00
    • G06F9/3879G06F9/526G06F2209/521
    • Atomic operations may be implemented on a processor system having a main memory and two or more processors including a power processor element (PPE) and a synergistic processor element (SPE) that operate on different sized register lines. A main memory address containing a primitive is divided into a parity byte and two or more portions, wherein the parity byte includes at least one bit. A value of the parity byte determines which of the two or more portions is a valid portion and which of them is an invalid portion. The primitive is of a memory size that is larger than a maximum size for atomic operation with the PPE and less than or equal to a maximum size for atomic operation with the SPE. Read with reservation and conditional write instructions are used by both the PPE and SPE to access or update a value of the atomic.
    • 原子操作可以在具有主存储器和两个或更多个处理器的处理器系统上实现,所述处理器包括在不同大小的寄存器线上操作的功率处理器元件(PPE)和协同处理器元件(SPE)。 包含原语的主存储器地址被划分为奇偶校验字节和两个或多个部分,其中奇偶校验字节包括至少一个位。 奇偶校验字节的值确定两个或多个部分中的哪一个是有效部分,哪些是无效部分。 原始内存大小大于使用PPE进行原子操作的最大大小,小于或等于使用SPE进行原子操作的最大大小。 读取预留和条件写入指令由PPE和SPE使用来访问或更新原子的值。