The advantages of the method are: unified algorithms, simplicity, easy modification and parallelism, and it can be used to draw non connected graphs directly.
其优点在于,算法统一、方法简单、容易实现、便于修改,并且易于并行化,可以直接用来画非连通图。
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Loop transformation is the basic way to maximization parallelism, but it doesn't work in the case of non - perfect nested loop with complicated control flow.