[R-pkg-devel] Fortran with OpenMP on MACOS

[Erin Hodgess]

I’m sure that you have done this, but did you set a compiler option of
-fopenmp, please?

Thanks

On Tue, Oct 13, 2020 at 9:35 AM Sergio Ibarra-Espinosa <sergio.ibarra using usp.br>
wrote:

> Dear List,
>
> I have a package that was archived (
>
> https://cran-archive.r-project.org/web/checks/2020/2020-10-07_check_results_vein.html
> ) because I could not solve an issue with OpenMP and Fortran on MACOS.
>
> I have seen that packages with C add precompilation conditions, for
> instance:
>
>
> https://github.com/tesujimath/R-OpenMPController/blob/86bd047e8bfdf3c87877336ff8e2d3b69327fe03/src/omp_set_num_threads_ptr.c#L12
>
> #ifdef _OPENMP
>   omp_set_num_threads(*np);
> #endif
>
> So, I tried adding those lines in #ifdef _OPENMP #endif in
> fortran, with the flag -cpp and the MACROS recommended by the R EXTS
> manual:
>
> USE_FC_TO_LINK =
> PKG_FFLAGS = $(SHLIB_OPENMP_FFLAGS) *-cpp*
> PKG_LIBS = $(SHLIB_OPENMP_FFLAGS)
>
> But with R CMD Check i got the message:
>
> Non-portable flags in variable 'PKG_FFLAGS': -cpp
>
> I would be very grateful if someone provides me some guidelines. Thank you
> so much
>
> Best, Sergio
>
>
> *Sergio Ibarra Espinosa*
> Postdoc in Atmospheric Sciences, Universidade de São Paulo
>
> +  <++8617643016295>55 11 934 909 778  | +55 11 974 253 791
> <+55+11+974+253+791> | sergio.ibarra using usp.br
>
> www.sergioibarra.blogspot.com | *Skype*: sergio_ibarra1
> <https://mail.google.com/mail/u/0/#SignatureSanitizer_SafeHtmlFilter_>
> Rua do Matão, 1226
> <https://www.google.com/maps/search/Rua+do+Mat%C3%A3o,+1226?entry=gmail&source=g>
> - Cidade Universitária São Paulo-SP - Brasil - 05508-090
> <http://github.com/ibarraespinosa>
> <https://zoom.us/j/6527509021?pwd=VmlXQWliR1JSZGtpS0tJR1A2dUZpZz09>
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-package-devel using r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-package-devel
>
-- 
Erin Hodgess, PhD
mailto: erinm.hodgess using gmail.com

	[[alternative HTML version deleted]]