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    • 8. 发明授权
    • Thread partitioning in a multi-core environment
    • 多核环境中的线程分区
    • US08707016B2
    • 2014-04-22
    • US12024211
    • 2008-02-01
    • Ravi K. ArimilliJuan C. RubioBalaram Sinharoy
    • Ravi K. ArimilliJuan C. RubioBalaram Sinharoy
    • G06F9/30
    • G06F9/4843G06F9/3851
    • A set of helper thread binaries is created to retrieve data used by a set of main thread binaries. The set of helper thread binaries and the set of main thread binaries are partitioned according to common instruction boundaries. As a first partition in the set of main thread binaries executes within a first core, a second partition in the set of helper thread binaries executes within a second core, thus “warming up” the cache in the second core. When the first partition of the main completes execution, a second partition of the main core moves to the second core, and executes using the warmed up cache in the second core.
    • 创建一组辅助线程二进制文件来检索一组主线程二进制文件使用的数据。 辅助线程二进制文件集和主线程二进制文件集合根据公共指令边界进行分区。 作为主线程二进制文件集合中的第一分区在第一核心内执行,该辅助线程二进制文件集中的第二分区在第二核心内执行,从而“预热”第二核心中的高速缓存。 当主要的第一分区完成执行时,主核心的第二分区移动到第二核心,并使用第二核心中的预热高速缓存执行。
    • 9. 发明授权
    • Speculative popcount data creation
    • 投机性的popcount数据创建
    • US08387065B2
    • 2013-02-26
    • US12425343
    • 2009-04-16
    • Ravi K. ArimilliRonald N. KallaBalaram Sinharoy
    • Ravi K. ArimilliRonald N. KallaBalaram Sinharoy
    • G06F9/46G06F9/45G06F9/30G06F9/40
    • G06F9/3001G06F9/30018G06F9/3842
    • A method and a data processing system by which population count (popcount) operations are efficiently performed without incurring the latency and loss of critical processing cycles and bandwidth of real time processing. The method comprises: identifying data to be stored to memory for which a popcount may need to be determined; speculatively performing a popcount operation on the data as a background process of the processor while the data is being stored to memory; storing the data to a first memory location; and storing a value of the popcount generated by the popcount operation within a second memory location. The method further comprises: determining a size of data; determining a granular level at which the popcount operation on the data will be performed; and reserving a size of said second memory location that is sufficiently large to hold the value of the popcount.
    • 一种方法和数据处理系统,通过该方法和数据处理系统有效地执行人口计数(popcount)操作,而不会导致关键处理周期的延迟和丢失以及实时处理的带宽。 该方法包括:识别要存储到可能需要确定一个弹出窗口的存储器的数据; 在将数据存储到存储器中的情况下,作为处理器的后台处理推测性地对数据进行弹出数据操作; 将数据存储到第一存储器位置; 以及将由所述popcount操作生成的所述popcount的值存储在第二存储器位置内。 该方法还包括:确定数据的大小; 确定将执行对数据的弹出数据操作的粒度级别; 以及保留所述第二存储器位置的大小足够大以保持所述用户名的值。