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    • 14. 发明授权
    • Parallel computer system including request distribution network for
distributing processing requests to selected sets of processors in
parallel
    • 并行计算机系统,其包括用于并行地将选择的处理器组分配处理请求的请求分发网络
    • US5388214A
    • 1995-02-07
    • US183219
    • 1994-01-14
    • Charles E. LeisersonRobert C. Zak, Jr.W. Daniel HillisBradley C. KuszmaulJeffrey V. Hill
    • Charles E. LeisersonRobert C. Zak, Jr.W. Daniel HillisBradley C. KuszmaulJeffrey V. Hill
    • G06F15/16G06F11/00G06F11/08G06F11/22G06F15/173G06F15/80G06F13/00
    • G06F15/17381G06F11/08G06F11/22G06F11/324G06F15/17343H04L45/48H04L49/35H04L49/555G06F2201/88
    • A computer comprising a plurality of processing nodes, a control node and a request distribution network. Each processing node receives processing requests and generates in response processed data. The control node generates processing requests for transfer to selected ones of the processing nodes as identified by associated request address information, and receives processed data in response, the request address information identifying selected ones of the processing nodes to receive a processing request in parallel. The request distribution network distributes the processing requests to the processing nodes and returns processed data to the control node. The network includes a plurality of request distribution nodes connected in a plurality of levels to form a tree-structure, including an upper root level and a lower leaf level. Each request distribution node is connected to receive processing requests from, and to couple processed data to, a parent, the parent of the request distribution node of the root level comprising the control node, and each request distribution node being further connected to couple processing requests to and receive processed data from, selected children, the children of the request distribution nodes of the leaf level comprising the processing nodes. Each request distribution node, in response to request address information received from its parent, identifies selected ones of its children and thereafter couples further request address information which it receives and processing requests in parallel to its children.
    • 一种包括多个处理节点,控制节点和请求分发网络的计算机。 每个处理节点接收处理请求并响应处理的数据生成。 控制节点生成用于传送到由相关联的请求地址信息识别的所选处理节点的处理请求,并响应于接收处理的数据,请求地址信息识别处理节点中选择的一个并行接收处理请求。 请求分配网络将处理请求分配给处理节点,并将处理后的数据返回给控制节点。 网络包括以多个级别连接的多个请求分发节点,以形成包括上根级和下叶级的树结构。 每个请求分发节点被连接以接收处理的请求,并且将处理的数据耦合到父节点,包括控制节点的根级别的请求分发节点的父节点,并且每个请求分配节点进一步连接以耦合处理请求 从所选择的孩子接收和接收包括处理节点的叶级别的请求分发节点的子节点。 每个请求分发节点响应于从其父节点接收到的请求地址信息,识别其子节点中的所选择的一个,然后将其接收到的进一步的请求地址信息与其子节点并行处理请求。
    • 15. 发明申请
    • Streaming File System
    • 流文件系统
    • US20150347477A1
    • 2015-12-03
    • US14292600
    • 2014-05-30
    • John EsmetMichael A. BenderMartin L. Farach-ColtonBradley C. Kuszmaul
    • John EsmetMichael A. BenderMartin L. Farach-ColtonBradley C. Kuszmaul
    • G06F17/30
    • G06F16/2246G06F16/13
    • An indexing system and method for a filesystem, such as a database using the POSIX application programming interface, uses two fractal tree indices, a metadata index mapping the full pathname of files to file metadata, preferably data such as returned with a struct stat call, and a data index mapping pathname and block number to a datablock of a predetermined size, optionally a fixed size. The data index has keys ordered lexicographically, and the system and method allows for modifying existing keys, and creating new keys if there is no existing key, for writes smaller than the predetermined block size and for unaligned writes. The invention provides at least about an order of magnitude improvement in microdata operations (such as creating and scanning files smaller than a predetermined size, such as 512-byte files), and has write times comparable with existing file systems.
    • 用于文件系统的索引系统和方法,例如使用POSIX应用编程接口的数据库,使用两个分形树索引,将文件的完整路径名映射到文件元数据的元数据索引,优选地,诸如用struct stat调用返回的数据, 以及将数据索引映射到预定大小的数据块的路径名和块号,可选地是固定大小。 数据索引具有按字典顺序排序的密钥,并且系统和方法允许修改现有密钥,如果没有现有密钥,则创建新密钥,对于写入小于预定块大小的写入和未对齐写入。 本发明在微数据操作(例如创建和扫描小于预定大小的文件,例如512字节文件)中提供至少大约一个数量级的改进,并且具有与现有文件系统相当的写入时间。