c - OpenACC 的 C/预处理器标准宏？

Question

在 OpenMP 中，当我们在 OpenMP 模式下编译时，我们已经_OPENMP定义了宏（几乎由我知道的任何编译器——gcc、pgi、intel ......）。我们在 OpenACC 模式下编译（Cray/pgi/其他编译器）时是否定义了类似的“标准”宏？

威拉万

Answer 1

是的，您为 openacc 定义了一个类似的宏：_OPENACC。

2.2 Conditional Compilation

The _OPENACC macro name is defined to have a value yyyymm where yyyy is the year and
mm is the month designation of the version of the OpenACC directives supported by the
implementation. This macro must be defined by a compiler only when OpenACC directives
are enabled. The version described here is 201306.