The tightly-coupled nature of the CMP allows very short physical distances between processors and memory and, therefore, minimal memory access latency and higher performance.
CMP 紧密耦合的本质使处理器与内存之间的物理距离很短，因此可提供最小的内存访问延迟和更高的性能。
Computers contain a certain amount of short-term memory, called random access memory, or RAM.
计算机包括一些短期存储器，称为随机存取存储器或叫做RAM。
MPI-2 mainly includes three topics: process creation andmanagement("PCM" for short), remote memory access("RMA" for short) and parallel I/O.
的扩充主要是三个方面：动态进程管理、远程存储访问和并行I/O。
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