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最低生活水平指数为零,通常有效
原标题:MPI count of zero is often valid
  • 时间:2012-05-01 19:36:28
  •  标签:
  • c
  • fortran
  • mpi

我来到,今天这份

MPI_ERR_COUNT Invalid count argument. Count arguments must be non-negative; a count of zero is often valid.

零点意味着什么是有效的often? 这是否意味着执行取决于执行?

最佳回答

我认为,你读得太多了。 我认为,这只是说,根据用户<>><>>>执行,从0随机积极分类来看,任何东西都是有效的。 难以想象一个不需要参数的信息标签。

如果信息标签不需要参数,那么只发送零件(事实上,发送数量可能无效)是有效的。 你们必须牢记,任何参数都不像数据一样,因为信息标签本身是“参数”。

问题回答

这就意味着,在需要确定信息数据规模的MPI中,任何功能都必须接受零,但这并不意味着会导致正确的应用代码。

例如,<代码>MPI_Send接受0为计数,并将永远发出空电,不提供数据,但仍有信封,任何配对均可收到。 另一方面,请具体说明0为<代码>MPI_Recv中的数值。 您会收到任何相应的非豁免信息,从而出现信息短.错误。 (从申请角度看)<代码>MPI_Recv的数值几乎永远无效。 消费物价指数完全可以接受。

零在消费物价指数中得到广泛接受,因为这样,人们就能够撰写更多的不对称代码(例如,没有抽签的代码<代码>if(面值!=)。 页: 1





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