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    • 101. 发明授权
    • Generating discrete event simulation data
    • 生成离散事件仿真数据
    • US08751205B2
    • 2014-06-10
    • US13172553
    • 2011-06-29
    • Meichun HsuQiming ChenBin Zhang
    • Meichun HsuQiming ChenBin Zhang
    • G06G7/48
    • G06F17/30516G06F17/30289
    • A method of generating discrete event simulation data using a query is provided herein. The method includes retrieving a trajectory specifying a service access event for a customer accessing a service in a simulation. The method also includes processing, in a relational database query, one or more pending events corresponding to one or more customers accessing the service before the customer. Additionally, the method includes processing, in the relational database query, the service access event. Processing the service access event occurs after processing the one or more pending events. The method also includes providing a result for the relational database query. The result comprises the trajectory, and the one or more trajectories.
    • 本文提供了使用查询产生离散事件仿真数据的方法。 该方法包括检索在模拟中为访问服务的客户指定服务访问事件的轨迹。 该方法还包括在关系数据库查询中处理与客户之前访问服务的一个或多个客户相对应的一个或多个未决事件。 另外,该方法包括在关系数据库查询中处理服务访问事件。 在处理一个或多个未决事件之后,处理服务访问事件。 该方法还包括提供关系数据库查询的结果。 结果包括轨迹和一个或多个轨迹。
    • 104. 发明申请
    • MAINTAINING A BUFFER STATE IN A DATABASE QUERY ENGINE
    • 在数据库查询引擎中维护缓冲区状态
    • US20130110862A1
    • 2013-05-02
    • US13282870
    • 2011-10-27
    • Qiming ChenMeichun Hsu
    • Qiming ChenMeichun Hsu
    • G06F17/30
    • G06F16/2455
    • Methods, apparatus and articles of manufacture to maintain a buffer state in a database query engine are disclosed. An example method disclosed herein includes identifying two or more input tuples associated with a query, identifying two or more output tuples associated with the query, associating the input tuples with a query engine input buffer, associating the output tuples with a query engine output buffer, and maintaining a state of the query engine input buffer and the query engine output buffer in response to executing the query in the database query engine to process the input tuples and the output tuples.
    • 公开了在数据库查询引擎中保持缓冲状态的方法,装置和制品。 本文公开的示例性方法包括识别与查询相关联的两个或更多个输入元组,识别与查询相关联的两个或多个输出元组,将输入元组与查询引擎输入缓冲区相关联,将输出元组与查询引擎输出缓冲区相关联, 并且响应于在数据库查询引擎中执行查询来处理查询引擎输入缓冲器和查询引擎输出缓冲器的状态来处理输入元组和输出元组。
    • 107. 发明授权
    • Method and system for blocking data on a GPU
    • 用于阻止GPU上的数据的方法和系统
    • US08400458B2
    • 2013-03-19
    • US12556401
    • 2009-09-09
    • Ren WuBin ZhangMeichun Hsu
    • Ren WuBin ZhangMeichun Hsu
    • G06F15/80
    • G06F15/8023G06T1/00
    • A method is provided for optimizing computer processes executing on a graphics processing unit (GPU) and a central processing unit (CPU). Process data is subdivided into sequentially processed data and parallel processed data. The parallel processed data is subdivided into a plurality of data blocks assigned to a plurality of processing cores of the GPU. The data blocks on the GPU are processed with other data blocks in parallel on the plurality of processing cores. Sequentially processed data is processed on the CPU. Result data processed on the CPU is returned.
    • 提供了一种用于优化在图形处理单元(GPU)和中央处理单元(CPU)上执行的计算机处理的方法。 过程数据被细分为顺序处理的数据和并行处理的数据。 并行处理的数据被细分为分配给GPU的多个处理核心的多个数据块。 GPU上的数据块在多个处理核上并行处理与其他数据块。 在CPU上处理顺序处理的数据。 返回CPU处理的结果数据。
    • 110. 发明授权
    • System and method for data stream processing
    • 用于数据流处理的系统和方法
    • US08260803B2
    • 2012-09-04
    • US12907948
    • 2010-10-19
    • Meichun HsuQiming Chen
    • Meichun HsuQiming Chen
    • G06F17/30
    • G06F17/30516G06F17/30445
    • A method and system for processing a data stream are described. The method executes, until the occurrence of a cut condition, a map function from a set of query processing steps to generate map results for a first portion of the data stream, executes a reduce function from the set of query processing steps to generate history-sensitive data from the map results, and rewinds the set of query processing steps, without termination of processing. The history-sensitive data is maintained for a second execution of the map function and reduce function on a second portion of the data stream.
    • 描述用于处理数据流的方法和系统。 该方法执行直到发生切割条件,来自一组查询处理步骤的地图函数以生成数据流的第一部分的地图结果,从该组查询处理步骤执行缩减函数,以生成历史记录 - 来自地图的敏感数据结果,并且倒带一组查询处理步骤,而不终止处理。 维护历史敏感数据以进行地图功能的第二次执行并减少数据流的第二部分上的功能。