用于片上多核互联的交叉开关方案

On-chip Interconnect for Multi-core Cross-switching Scheme

微处理器向多核发展是一种趋势,而且正在向许多核发展。连接结构的性能很大程度上决定着整个系统性能,因此有必要研究多核连接的高效机制。常用的总线在连接核心的数目比较多时,会因竞争而成为整个系统性能的瓶颈。而交叉开关竞争最少,是核间连接最高效的方法之一。文章设计一个用于核间连接的五级流水的交叉开关。它的输入和输出端均带有缓冲,并且为了有效和公平地得用带宽,使用了虚拟通道。数据流的控制用在端口的计数器来实现。

The development of the multi-core microprocessor is a trend, and is the number of nuclear development. Connection structure largely determines the performance of the whole system performance, it is necessary to study the mechanism of efficient multi-core connection.Common bus connecting the core compared with the number in a long time, due to competition and become the bottleneck of the whole system performance. The crossbar competition at least, is the nucleus of one of the most efficient way connected.This design one for the connection between the five nuclear cross-flow switch. Its input and output both with the buffer, In order to effectively and fairly, and starting a bandwidth, using a virtual channel. Controlling data flow to achieve a counter in the port.