So without any fortran environments:

➜ ~ brew uninstall gcc

Uninstalling /usr/local/Cellar/gcc/5.2.0... (1353 files, 248M)

➜ ~ brew uninstall openmpi

Uninstalling /usr/local/Cellar/open-mpi/1.10.1... (765 files, 21M)

➜ ~ brew install openmpi

==> Downloading https://homebrew.bintray.com/bottles/open-mpi-1.10.1.el_capitan.bottle.tar

Already downloaded: /Library/Caches/Homebrew/open-mpi-1.10.1.el_capitan.bottle.tar.gz

==> Pouring open-mpi-1.10.1.el_capitan.bottle.tar.gz

🍺 /usr/local/Cellar/open-mpi/1.10.1: 765 files, 21M

➜ ~ mpif90 -show

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

No underlying compiler was specified in the wrapper compiler data file

(e.g., mpicc-wrapper-data.txt)

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

➜ ~ mpif90

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

No underlying compiler was specified in the wrapper compiler data file

(e.g., mpicc-wrapper-data.txt)

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

➜ ~ brew install gcc

==> Downloading https://homebrew.bintray.com/bottles/gcc-5.2.0.el_capitan.bottle.3.tar.gz

Already downloaded: /Library/Caches/Homebrew/gcc-5.2.0.el_capitan.bottle.3.tar.gz

==> Pouring gcc-5.2.0.el_capitan.bottle.3.tar.gz

==> Caveats

GCC has been built with multilib support. Notably, OpenMP may not work:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60670

If you need OpenMP support you may want to

brew reinstall gcc --without-multilib

==> Summary

🍺 /usr/local/Cellar/gcc/5.2.0: 1353 files, 248M

➜ ~ mpif90 -show

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

No underlying compiler was specified in the wrapper compiler data file

(e.g., mpicc-wrapper-data.txt)

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

➜ ~ mpif90

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

No underlying compiler was specified in the wrapper compiler data file

(e.g., mpicc-wrapper-data.txt)

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

Now with export OMPI_FC=gfortran in ~/.profile:

➜ ~ brew uninstall gcc

Uninstalling /usr/local/Cellar/gcc/5.2.0... (1353 files, 248M)

➜ ~ brew uninstall openmpi

Uninstalling /usr/local/Cellar/open-mpi/1.10.1... (765 files, 21M)

➜ ~ brew install openmpi

==> Downloading https://homebrew.bintray.com/bottles/open-mpi-1.10.1.el_capitan.bottle.tar

Already downloaded: /Library/Caches/Homebrew/open-mpi-1.10.1.el_capitan.bottle.tar.gz

==> Pouring open-mpi-1.10.1.el_capitan.bottle.tar.gz

🍺 /usr/local/Cellar/open-mpi/1.10.1: 765 files, 21M

➜ ~ mpif90 -show

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

No underlying compiler was specified in the wrapper compiler data file

(e.g., mpicc-wrapper-data.txt)

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

➜ ~ mpif90

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

No underlying compiler was specified in the wrapper compiler data file

(e.g., mpicc-wrapper-data.txt)

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

➜ ~ brew install gcc

==> Downloading https://homebrew.bintray.com/bottles/gcc-5.2.0.el_capitan.bottle.3.tar.gz

Already downloaded: /Library/Caches/Homebrew/gcc-5.2.0.el_capitan.bottle.3.tar.gz

==> Pouring gcc-5.2.0.el_capitan.bottle.3.tar.gz

==> Caveats

GCC has been built with multilib support. Notably, OpenMP may not work:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60670

If you need OpenMP support you may want to

brew reinstall gcc --without-multilib

==> Summary

🍺 /usr/local/Cellar/gcc/5.2.0: 1353 files, 248M

➜ ~ mpif90 -show

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

No underlying compiler was specified in the wrapper compiler data file

(e.g., mpicc-wrapper-data.txt)

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

➜ ~ mpif90

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

No underlying compiler was specified in the wrapper compiler data file

(e.g., mpicc-wrapper-data.txt)

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

➜ ~ vi ~/.profile

➜ ~ . ~/.profile

➜ ~ brew uninstall gcc

Uninstalling /usr/local/Cellar/gcc/5.2.0... (1353 files, 248M)

➜ ~ brew uninstall openmpi

Uninstalling /usr/local/Cellar/open-mpi/1.10.1... (765 files, 21M)

➜ ~ brew install openmpi

==> Downloading https://homebrew.bintray.com/bottles/open-mpi-1.10.1.el_capitan.bottle.tar

Already downloaded: /Library/Caches/Homebrew/open-mpi-1.10.1.el_capitan.bottle.tar.gz

==> Pouring open-mpi-1.10.1.el_capitan.bottle.tar.gz

🍺 /usr/local/Cellar/open-mpi/1.10.1: 765 files, 21M

➜ ~ mpif90 -show

gfortran -I/usr/local/Cellar/open-mpi/1.10.1/include -L/usr/local/opt/libevent/lib -L/usr/local/Cellar/open-mpi/1.10.1/lib -lmpi_mpifh -lmpi

➜ ~ which gfortran

gfortran not found

➜ ~ mpif90 --version

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

The Open MPI wrapper compiler was unable to find the specified compiler

gfortran in your PATH.

Note that this compiler was either specified at configure time or in

one of several possible environment variables.

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

➜ ~ brew install openmpi

Warning: open-mpi-1.10.1 already installed

➜ ~ brew install gcc

==> Downloading https://homebrew.bintray.com/bottles/gcc-5.2.0.el_capitan.bottle.3.tar.gz

Already downloaded: /Library/Caches/Homebrew/gcc-5.2.0.el_capitan.bottle.3.tar.gz

==> Pouring gcc-5.2.0.el_capitan.bottle.3.tar.gz

==> Caveats

GCC has been built with multilib support. Notably, OpenMP may not work:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60670

If you need OpenMP support you may want to

brew reinstall gcc --without-multilib

==> Summary

🍺 /usr/local/Cellar/gcc/5.2.0: 1353 files, 248M

➜ ~ mpif90 --version

GNU Fortran (Homebrew gcc 5.2.0) 5.2.0

GNU Fortran comes with NO WARRANTY, to the extent permitted by law.

You may redistribute copies of GNU Fortran

under the terms of the GNU General Public License.

For more information about these matters, see the file named COPYING

but my firedrake-install script gives the same fortran error during the petsc configure. Now when I tried your hello world example:

mpif90 hello.f90 -o hello

hello.f90:2:4:

use mpi

Fatal Error: Can't open module file 'mpi.mod' for reading at (1): No such file or directory

compilation terminated.

Clearly something is wrong, and setting the environment flags (or modifying the mpif90-wrapper-data.txt) does not resolve the issue. Do you have a gfortran environment set anywhere?

Thanks,

Justin

On Tue, Dec 1, 2015 at 5:08 AM, Lawrence Mitchell <lawrence.mitchell@imperial.ac.uk> wrote:

> On 1 Dec 2015, at 12:05, Justin Chang <jychang48@gmail.com> wrote:
>
> Okay, so mpif90-wrapper-data.txt is located in
>
> /usr/local/Cellar/open-mpi/1.10.1/share/openmpi/mpif90-wrapper-data.txt
>
> and in the row that says "compiler=", the RHS is blank. Simply adding gfortran-5 now gives:
>
> mpif90 --show
> gfortran-5 -I/usr/local/Cellar/open-mpi/1.10.1/include -L/usr/local/opt/libevent/lib -L/usr/local/Cellar/open-mpi/1.10.1/lib -lmpi_mpifh -lmpi
>
> so this is definitely the much better alternative

A better way to do this is to set the environment variable OMPI_FC to the name of the fortran compiler you want mpif90 to use.

Lawrence

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