[HIPIFY] Isn't hipify-clang preprocessor based tool?

[alvin546]

I have attempted to migrate below code using hipify-clang in Windows environment.
`#if 0
#include <mpi.h>
#else
#include <omp.h>
#endif

int main()
{
//CUDA code
return 0;
}`

But encountering following error:
C:\Users\APENDLIX\AppData\Local\Temp\test.cu-10f48a.hip:16:10: fatal error: 'mpi.h' file not found #include <mpi.h> ^~~~~~~ Exception Code: 0xC0000005

I'm wondering about why it is considering mpi.h though it is disabled. Isn't hipify-clang preprocessor based tool? Am I missing anything to consider for migration?

[emankov]

hipify-clang is a clang frontend-based tool, which utilizes C/C++ preprocessor as well. By default, all preprocessor conditional branches are taken into account, because the main aim is to HIPIFY AMAP.

This default behaviour can be turned off by providing --default-preprocessor option.

For all available options, use --help option, please.

[alvin546]

Thank you, this option addressed my issue.
May I know what is HIPIFY AMAP?

[emankov]

I meant, to HIPIFY (CUDA sources) As Much As Possible.

[emankov]

Closing as answered.