对本地存储内存的访问与主存访问相比速度更快。
Local store memory accesses are extremely fast compared to main memory accesses.
主存中的每个位置都使用连续的数字地址编号，内存位置就使用这个地址来引用。
Every location in main memory is numbered with a sequential numeric address by which the memory location is referred.
SPE 用直接内存访问（DMA）命令访问主存储器，可以在主存储器与称为本地库或本地存储（LS）的私有本地内存之间移动数据和指令。
The SPEs access main storage with direct memory access (DMA) commands that move data and instructions between main storage and a private local memory, called a local store or local storage (LS).
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