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    • 5. 发明授权
    • Processor unit for a parallel processor system discards a received
packet when a reception buffer has insufficient space for storing the
packet
    • 当接收缓冲器没有足够的存储空间时,并行处理器系统的处理器单元丢弃接收的数据包
    • US5594868A
    • 1997-01-14
    • US407853
    • 1995-03-21
    • Junji NakagoshiTatsuo HiguchiShinichi KatoToshimitsu AndoMasaaki Iwasaki
    • Junji NakagoshiTatsuo HiguchiShinichi KatoToshimitsu AndoMasaaki Iwasaki
    • G06F12/14G06F15/173G06F13/14G06F15/16G06F15/163
    • G06F15/17368
    • A parallel processor system includes: a reception buffer pointer controller for generating an address of a reception buffer area in which a received packet is written and for checking whether there is no space area in the reception buffer area; a discard command bit capable of being set and reset by an instruction processor; a received packet discard judging unit for judging from the discard command bit and information supplied from the reception buffer pointer controller, whether the received packet is written, suspended, or discarded; and a reception controller for controlling to write the received packet in the reception buffer area in accordance with an judgement by the received packet discard judging unit. With this arrangement, even if there is no space area in the reception buffer area for storing a received packet or even if the received packet cannot be received because of a failure in the reception processor unit, the received packet can be discarded at the reception processor unit.
    • 并行处理器系统包括:接收缓冲器指针控制器,用于产生其中写入接收到的分组的接收缓冲器区域的地址,并且用于检查接收缓冲区域中是否没有空间区域; 能够由指令处理器设置和复位的丢弃命令位; 接收到的分组丢弃判断单元,用于从丢弃命令比特和从接收缓冲器指针控制器提供的信息判断所接收的分组是否被写入,暂停或丢弃; 以及接收控制器,用于根据接收到的分组丢弃判断单元的判断,控制将接收到的分组写入接收缓冲区。 利用这种布置,即使接收缓冲区中没有用于存储接收到的分组的空间区域,或者即使接收到的分组由于接收处理单元的故障而不能接收,也可以在接收处理器中丢弃所接收的分组 单元。
    • 9. 发明授权
    • Switch circuit comprised of logically split switches for parallel
transfer of messages and a parallel processor system using the same
    • 由用于并行传送消息的逻辑分割开关组成的开关电路和使用该开关的并行处理器系统
    • US5754792A
    • 1998-05-19
    • US34359
    • 1993-03-19
    • Shinichi ShutohJunji NakagoshiNaoki HamanakaShigeo TakeuchiTeruo Tanaka
    • Shinichi ShutohJunji NakagoshiNaoki HamanakaShigeo TakeuchiTeruo Tanaka
    • G06F11/14G06F15/173H04L12/56H04Q11/04G06F13/00
    • G06F15/17375G06F11/1443H04L49/1576H04L49/256H04Q11/0478
    • A parallel processor system including a plurality of processors. When packets of same destination PE number are inputted from different ports, the destination PE number is added with ID numbers of leading ports of split crossbar switches to which the different input ports belong, respectively, by using respective addition circuits, to thereby determine a transfer destination output port for the packets. A plurality of the split crossbar switches having different numbers of input/output ports are realized by partitioning a crossbar switch. By means of an input port select circuit provided in association with each of the output ports, an output request for the packet from the input port belonging to the split crossbar switch to which the associated output port belongs is accepted, while output requests for the packets from the input ports belonging to the other split crossbar switches are inhibited from being accepted, whereby transfer of broadcast packets are inhibited between the split crossbar switches belonging to a physically same crossbar switch. Such situation can be evaded in which same broadcast packets arrive at one and the same processor a number of times.
    • 一种并行处理器系统,包括多个处理器。 当从不同的端口输入相同的目的地PE号码的分组时,通过使用各自的加法电路,分别将目的地PE号码分别与不同的输入端口所属的分离的交叉开关的前导端口的ID号相加,从而确定传送 目标输出端口为数据包。 通过划分交叉开关来实现具有不同数量的输入/输出端口的多个分开的交叉开关。 通过与每个输出端口相关联地提供的输入端口选择电路,接收来自属于相关联的输出端口所属的分离交叉开关的输入端口的分组的输出请求,同时对分组的输出请求 从属于其他分割交叉开关的输入端口被禁止被接受,从而在属于物理上相同的交叉开关的分开的交叉开关之间禁止广播分组的传送。 可以避免这种情况,其中相同的广播分组多次到达同一个处理器。