并结合FGS算法的特点，选择FGS算法中最适当的数据存储类型，节省了大量的外存带宽。
Associated with the characteristics of FGS algorithm, it chooses the most suitable data type for storage of FGS algorithm to save much external memory bandwidth.
因此在快速的内存和相对慢速的外存（比如硬盘）之间的输入/输出（I/O）通讯就成了制约算法性能的主要瓶颈。
The resulting input/output communication (or I/O) between fast internal memory and slower external memory (such as disks) can be a major performance bottleneck.
因此在快速的内存和相对慢速的外存（比如硬盘）之间的输入/输出（I/O）通讯就成了制约算法性能的主要瓶颈。
The resulting input/output communication (or I/O) between fast internal memory and slower external memory (such as disks) can be a major performance bottleneck.
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