OpenMP option

[Noriyuki Kushida]

Dear developers,

This is a very minor issue, but it seems that xmpf90 automatically adds "-fomp" option to the native compiler command line, when it is invoked with "--omp".

The current "ifort" compiler uses a different one to enable OpenMP, and it may vary in the future again.

Do you think you can get the correct option with the "configure" script?

I understand that I can add the option (-qopenmp in my case) by myself, and there is no problem in practice.

This is just a matter of beauty.

--- sample error message ----

xmpf90 -c --omp --Wn"-O3 -march=core-avx2" variables.f90
ifort: command line warning #10006: ignoring unknown option '-fomp'

----------------------------------------

Best regards,

Noriyuki

[Masahiro Nakao]

Dear Noriyuki Kushida,

Thank you for your comment.
The OpenMP options for omni-compiler are "-omp" and "--openmp".
Other options are passed straight to the native compiler.
---
$ mpiifort -v
mpiifort for the Intel(R) MPI Library 2019 Update 5 for Linux*
Copyright 2003-2019, Intel Corporation.
ifort version 19.0.5.281

$ mpiifort --omp a.f90

ifort: command line warning #10006: ignoring unknown option '-fomp'
---

As shown above, omni-compiler works fine.

Please execute with the following command.
$ xmpf90 -c -omp --Wn"-O3 -march=core-avx2" variables.f90
or
$ xmpf90 -c --fopenmp --Wn"-O3 -march=core-avx2" variables.f90

Thanks,

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Masahiro NAKAO
Email : masahir...@riken.jp
RIKEN Center for Computational Science (R-CCS)

[Noriyuki Kushida]

Thank you very much for your explanation.

I was confused by the error message.

Noriyuki

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