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    • 1. 发明授权
    • Optimized collectives using a DMA on a parallel computer
    • 在并行计算机上使用DMA优化集合
    • US07886084B2
    • 2011-02-08
    • US11768645
    • 2007-06-26
    • Dong ChenDozsa GaborMark E. GiampapaPhillip Heidelberger
    • Dong ChenDozsa GaborMark E. GiampapaPhillip Heidelberger
    • G06F13/28G06F13/00
    • G06F13/28
    • Optimizing collective operations using direct memory access controller on a parallel computer, in one aspect, may comprise establishing a byte counter associated with a direct memory access controller for each submessage in a message. The byte counter includes at least a base address of memory and a byte count associated with a submessage. A byte counter associated with a submessage is monitored to determine whether at least a block of data of the submessage has been received. The block of data has a predetermined size, for example, a number of bytes. The block is processed when the block has been fully received, for example, when the byte count indicates all bytes of the block have been received. The monitoring and processing may continue for all blocks in all submessages in the message.
    • 在一个方面,在并行计算机上优化使用直接存储器访问控制器的集合操作可以包括建立与消息中的每个子消息的直接存储器访问控制器相关联的字节计数器。 字节计数器至少包括存储器的基地址和与子消息相关联的字节计数。 监视与子消息相关联的字节计数器,以确定是否已经接收到子消息的至少一个数据块。 数据块具有预定的大小,例如,多个字节。 当块完全接收时,块被处理,例如,当字节计数指示已经接收到块的所有字节时。 消息中的所有子消息中的所有块的监视和处理可以继续。
    • 2. 发明申请
    • OPTIMIZED COLLECTIVES USING A DMA ON A PARALLEL COMPUTER
    • 使用并行计算机上的DMA的优化收集器
    • US20090006662A1
    • 2009-01-01
    • US11768645
    • 2007-06-26
    • Dong ChenDozsa GaborMark E. GiampapaPhillip Heidelberger
    • Dong ChenDozsa GaborMark E. GiampapaPhillip Heidelberger
    • G06F13/28
    • G06F13/28
    • Optimizing collective operations using direct memory access controller on a parallel computer, in one aspect, may comprise establishing a byte counter associated with a direct memory access controller for each submessage in a message. The byte counter includes at least a base address of memory and a byte count associated with a submessage. A byte counter associated with a submessage is monitored to determine whether at least a block of data of the submessage has been received. The block of data has a predetermined size, for example, a number of bytes. The block is processed when the block has been fully received, for example, when the byte count indicates all bytes of the block have been received. The monitoring and processing may continue for all blocks in all submessages in the message.
    • 在一个方面,在并行计算机上优化使用直接存储器访问控制器的集合操作可以包括建立与消息中的每个子消息的直接存储器访问控制器相关联的字节计数器。 字节计数器至少包括存储器的基地址和与子消息相关联的字节计数。 监视与子消息相关联的字节计数器,以确定是否已经接收到子消息的至少一个数据块。 数据块具有预定的大小,例如,多个字节。 当块完全接收时,块被处理,例如,当字节计数指示已经接收到块的所有字节时。 消息中的所有子消息中的所有块的监视和处理可以继续。