Be aware, however, that creating additional clusters and cluster members comes with a price in terms of memory, CPU capacity, and other things, so you should not create a large number of them.
但是，要注意，创建额外的集群和集群成员需要在内存、CPU容量和其他方面付出代价，因此不应该大量创建它们。
Now, PCs' performance is increasing and price is decreasing, and many units use PC clusters according to the high ratio of performance and value.
现在PC机的性能不断的提高，价格下降，很好的性能价格比使很多单位普遍使用PC集群。
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