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    Detection of streaming data in cache
    2.
    发明授权
    Detection of streaming data in cache 有权
    检测缓存中的流数据

    公开(公告)号：US08667221B2

    公开(公告)日：2014-03-04

    申请号：US12099502

    申请日：2008-04-08

    申请人： Changkyu Kim ,  Christopher J. Hughes ,  Yen-Kuang Chen

    发明人： Changkyu Kim ,  Christopher J. Hughes ,  Yen-Kuang Chen

    IPC分类号： G06F12/08

    CPC分类号： G06F12/0897 ,  G06F12/128

    摘要： An apparatus to detect streaming data in memory is presented. In one embodiment the apparatus use reuse bits and S-bits status for cache lines wherein an S-bit status indicates the data in the cache line are potentially streaming data. To enhance the efficiency of a cache, different measures can be applied to make the streaming data become the next victim during a replacement.

    摘要翻译： 提出了一种在存储器中检测流数据的装置。 在一个实施例中，装置对高速缓存行使用重用位和S位状态，其中S位状态指示高速缓存行中的数据是潜在的流数据。 为了提高高速缓存的效率，可以采用不同的措施来使流数据成为替换期间的下一个受害者。

    PARALLEL OPERATION ON B+ TREES
    3.
    发明申请
    PARALLEL OPERATION ON B+ TREES 有权
    平行操作在B + TREES

    公开(公告)号：US20130339395A1

    公开(公告)日：2013-12-19

    申请号：US13996508

    申请日：2011-08-29

    申请人： Jason D. Sewall ,  Changkyu Kim ,  Jatin Chhugani ,  Nadathur Rajagopalan Satish

    发明人： Jason D. Sewall ,  Changkyu Kim ,  Jatin Chhugani ,  Nadathur Rajagopalan Satish

    IPC分类号： G06F17/30

    CPC分类号： G06F17/30327 ,  G06F9/5005 ,  G06F2209/5018

    摘要： Embodiments of techniques and systems for parallel processing of B+ trees are described. A parallel B+ tree processing module with partitioning and redistribution may include a set of threads executing a batch of B+ tree operations on a B+ tree in parallel. The batch of operations may be partitioned amongst the threads. Next, a search may be performed to determine which leaf nodes in the B+ tree are to be affected by which operations. Then, the threads may redistribute operations between each other such that multiple threads will not operate on the same leaf node. The threads may then perform B+ tree operations on the leaf nodes of the B+ tree in parallel. Subsequent modifications to nodes in the B+ may similarly be redistributed and performed in parallel as the threads work up the tree.

    摘要翻译： 描述了用于B +树的并行处理的技术和系统的实施例。 具有分区和再分配的并行B +树处理模块可以包括一组在B +树上并行执行一批B +树操作的线程。 该批操作可以在线程之间划分。 接下来，可以执行搜索以确定B +树中的哪些叶节点将受哪些操作影响。 然后，线程可以在彼此之间重新分配操作，使得多个线程将不在同一叶节点上操作。 然后，线程可以并行地在B +树的叶节点上执行B +树操作。 当线程处理树时，对B +中的节点的后续修改可以类似地重新分布并且并行执行。

    METHOD AND APPARATUS FOR STREAM BUFFER MANAGEMENT INSTRUCTIONS
    4.
    发明申请
    METHOD AND APPARATUS FOR STREAM BUFFER MANAGEMENT INSTRUCTIONS 有权
    流缓冲器管理指令的方法和装置

    公开(公告)号：US20120137074A1

    公开(公告)日：2012-05-31

    申请号：US12955763

    申请日：2010-11-29

    申请人： Daehyun Kim ,  Changkyu Kim ,  Victor W. Lee ,  Jatin Chhugani ,  Nadathur Rajagopalan Satish

    发明人： Daehyun Kim ,  Changkyu Kim ,  Victor W. Lee ,  Jatin Chhugani ,  Nadathur Rajagopalan Satish

    IPC分类号： G06F12/08 ,  G06F12/02 ,  G06F12/16

    CPC分类号： G06F12/0862 ,  G06F9/3004 ,  G06F2212/6022

    摘要： A method and system to perform stream buffer management instructions in a processor. The stream buffer management instructions facilitate the creation and usage of a dedicated memory space or stream buffer of the processor in one embodiment of the invention. The dedicated memory space is a contiguous memory space and has a sequential or linear addressing scheme in one embodiment of the invention. The processor has logic to execute a stream buffer management instruction to copy data from a source memory address to a destination memory address that is specified with a desired level of memory hierarchy.

    摘要翻译： 一种在处理器中执行流缓冲器管理指令的方法和系统。 在本发明的一个实施例中，流缓冲器管理指令有助于创建和使用处理器的专用存储空间或流缓冲器。 专用存储器空间是连续存储器空间，并且在本发明的一个实施例中具有顺序或线性寻址方案。 处理器具有执行流缓冲器管理指令的逻辑，以将来自源存储器地址的数据复制到用期望的存储器层级指定的目的地存储器地址。

    Method and system to increase concurrency and control replication in a multi-core cache hierarchy
    5.
    发明授权
    Method and system to increase concurrency and control replication in a multi-core cache hierarchy 有权
    在多核缓存层次结构中增加并发性和控制复制的方法和系统

    公开(公告)号：US08171223B2

    公开(公告)日：2012-05-01

    申请号：US12315442

    申请日：2008-12-03

    申请人： Christopher J. Hughes ,  Changkyu Kim ,  Yen-Kuang Chen

    发明人： Christopher J. Hughes ,  Changkyu Kim ,  Yen-Kuang Chen

    IPC分类号： G06F12/08

    CPC分类号： G06F12/0828 ,  G06F12/0822

    摘要： A directory of a private cache hierarchy is provided to maintain coherency between data stored in the cache hierarchy, where the directory is to enable concurrent cache-to-cache transfer of data to two private caches from another private cache. This directory can be implemented in a system having a multi-core processor. Other embodiments are described.

    摘要翻译： 提供专用高速缓存层级的目录以维持存储在高速缓存层次结构中的数据之间的一致性，其中目录是启用数据的并发缓存到高速缓存传输到来自另一专用高速缓存的两个专用高速缓存。 该目录可以在具有多核处理器的系统中实现。 描述其他实施例。

    FABRICATION METHOD OF ALLOY PARTS BY METAL INJECTION MOLDING AND THE ALLOY PARTS
    7.
    发明申请
    FABRICATION METHOD OF ALLOY PARTS BY METAL INJECTION MOLDING AND THE ALLOY PARTS 审中-公开
    通过金属注射成型和合金部件制备合金部件的方法

    公开(公告)号：US20090297396A1

    公开(公告)日：2009-12-03

    申请号：US12306778

    申请日：2007-01-30

    申请人： Sunghak Lee ,  Nackjoon Kim ,  Taeshik Yoon ,  Changkyu Kim ,  Changyoung Son ,  Daejin Ha

    发明人： Sunghak Lee ,  Nackjoon Kim ,  Taeshik Yoon ,  Changkyu Kim ,  Changyoung Son ,  Daejin Ha

    IPC分类号： C22C30/00 ,  B22F1/00 ,  C22C30/02

    CPC分类号： B22F3/225 ,  B22F3/1021 ,  B22F2998/10 ,  B22F2999/00 ,  C22C33/0285 ,  B22F1/0059 ,  B22F2201/01 ,  B22F2201/10

    摘要： Provided is a method of manufacturing a part and the part capable of manufacturing a high value-added precision part having a low sintering temperature, a good hardness, and a good productivity at a low cost. The method includes steps of: mixing a material of from 40 to 75 wt % selected from the group consisting of Fe and a combination of Fe and Co, a material of 20 wt % or more selected from the group consisting of W, Mo, Cr, Nb, V, and Ni, a material of from 2 to 14 wt % selected from the group consisting of B, C, Cu, and Si, alloy powder having a composition including unavoidable impurities, and a binder; performing an injection molding on the mixture to form the injection moldings to have a shape of the part; removing the binder from the injection moldings; and sintering the injection moldings from which the binder is removed.

    摘要翻译： 提供一种制造能够以低成本制造具有低烧结温度，良好的硬度和良好的生产率的高附加值精密部件的部件和部件的方法。 该方法包括以下步骤：将选自Fe和Fe的组合的40至75重量％的材料混合，选自W，Mo，Cr中的20重量％以上的材料 ，Nb，V和Ni，选自B，C，Cu和Si的2至14重量％的材料，具有不可避免的杂质的组成的合金粉末和粘合剂; 在混合物上进行注塑以形成具有该部件形状的注射成型品; 从注射成型品中去除粘合剂; 并烧结从其去除粘合剂的注射成型品。

    Methods and systems to determine conservative view cell occlusion
    9.
    发明授权
    Methods and systems to determine conservative view cell occlusion 有权
    确定保守观察细胞闭塞的方法和系统

    公开(公告)号：US08743114B2

    公开(公告)日：2014-06-03

    申请号：US12234988

    申请日：2008-09-22

    申请人： Changkyu Kim ,  Jatin Chhugani ,  Christian Bienia ,  Daehyun Kim ,  Anthony Ngueyn ,  Sanjeev Kumar

    发明人： Changkyu Kim ,  Jatin Chhugani ,  Christian Bienia ,  Daehyun Kim ,  Anthony Ngueyn ,  Sanjeev Kumar

    IPC分类号： G06T15/00 ,  G06T15/40

    CPC分类号： G06T15/40

    摘要： Methods and systems to determine view cell occlusion, including to project objects of a 3-dimensional graphics environment to a 2-dimensional image plane with respect to the view point, to reduce sizes of corresponding object images, to generate an occluder map from the reduced-size object images, to compare at least a portion of the object images to the occluder map, and to identify an object as occluded with respect to the view cell when pixel depth values of the object image are greater than corresponding pixel depth values of the occluder map. Methods and systems to reduce an object image size include methods and systems to nullify pixel depth values within a radius of an edge pixel, and to determine the radius as a distance from the edge pixel to a second pixel so that a line between the view point and the second pixel is parallel with one or more of a line and a plane that is tangential to a sphere enclosing the view cell and a point on the object that corresponds to the edge pixel.

    摘要翻译： 确定观察细胞闭塞的方法和系统，包括将三维图形环境的对象相对于视点投影到二维图像平面，以减小相应对象图像的大小，从缩小的图像生成闭塞图 将对象图像的尺寸调整为将至少一部分对象图像与遮挡物图进行比较，并且当对象图像的像素深度值大于对象图像的对应像素深度值时，识别相对于视图单元被遮挡的对象 封堵器图。 减少对象图像尺寸的方法和系统包括使边缘像素的半径内的像素深度值无效的方法和系统，并且将半径确定为距离边缘像素到第二像素的距离，使得视点 并且第二像素平行于与包围视图单元的球体相切的线和平面以及与边缘像素对应的物体上的点的一个或多个。