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An effective memory addressing scheme for multiprocessor FFT system

机译:多处理器FFT系统有效的内存寻址方案

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The memory organization of FFT processors is considered. A new memory addressing scheme is given. The proposed scheme considers the case of using two modules of two-port memory and allows the processing of the butterflies in the form of groups of two. The addressing assignment allows, without any conflict, simultaneous access to the data needed for the two butterflies and to write back the four outputs to the same places. The advantages of this memory-addressing scheme lie in the fact that it reduces the number of the cycles of butterfly calculations of FFT to half and it reduces the delay of address generation to minimum.
机译:考虑FFT处理器的内存组织。给出了一种新的内存寻址方案。该方案考虑使用两个两个端口存储器的两个模块的情况,并允许以两组组的形式处理蝴蝶的处理。寻址分配允许在没有任何冲突的情况下,同时访问两只蝴蝶所需的数据,并将四个输出写入同一位置。这种内存寻址方案的优点在于它将FFT计算的蝴蝶计算循环的数量减少到一半,并且它将地址生成的延迟降低到最小。

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