I need to enable Fortran support during PETSc installation

[ddmoa]

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Hello! I want to install PETSc with Fortran support when running the Moose installation script. I modified the configure_petsc.sh file by setting --with-fortran-bindings=1, but it doesn't seem to work. The final PETSc installation directory does not contain the petsc/finclude directory. How should I modify the configuration?

[lindsayad]

Either delete the line --with-sowing=0 or change it to --with-sowing=1

[milljm]

The following does not seem to create an finclude directory either:

git clone -b release https://gitlab.com/petsc/petsc.git petsc
cd petsc/
git co v3.22.1
./configure --with-64-bit-indices \
      --with-cxx-dialect=C++17 \
      --with-debugging=no \
      --with-fortran-bindings=1 \
      --with-mpi=1 \
      --with-openmp=1 \
      --with-strict-petscerrorcode=1 \
      --with-shared-libraries=1 \
      --with-sowing=1 \
      --download-fblaslapack=1 \
      --download-hpddm=1 \
      --download-hypre=1 \
      --download-metis=1 \
      --download-mumps=1 \
      --download-ptscotch=1 \
      --download-parmetis=1 \
      --download-scalapack=1 \
      --download-slepc=1 \
      --download-strumpack=1 \
      --download-superlu_dist=1 \
      --prefix=/data/milljm/petsc_installed
make PETSC_DIR=/data/milljm/projects/petsc PETSC_ARCH=arch-linux-c-opt all
make PETSC_DIR=/data/milljm/projects/petsc PETSC_ARCH=arch-linux-c-opt install

What is supposed to happen? This is a clone directly from PETSc. No use of MOOSE at all here.

[lindsayad]

doesn't contain header files like petsc.h or petscao.h

These files are in $PETSC_DIR/include, not $PETSC_DIR/$PETSC_ARCH/include. When building with a PETSC_ARCH like is done when running the update_and_rebuild_petsc.sh script, you will not see all the files arranged such as you would see for a classic installation. C headers independent of configuration will be in $PETSC_DIR/include (moose/petsc/include) while headers dependent on configuration will be in $PETSC_DIR/$PETSC_ARCH/include (moose/petsc/arch-moose/include)

[ddmoa]

Sorry, I don't understand how the configuration-dependent headers and configuration-independent headers are set.

Maybe I need to clarify the points I mentioned above about the headers. I downloaded PETSc version 3.21.5 and configured it using only the following command: ./configure --prefix=/xx/build --with-mpi-dir=/xx/build --download-fblaslapack=1 After installation, the build directory contains a include/petsc/finclude directory, and inside it, there are headers like petsc.h.

[lindsayad]

that is definitely different from what I expected based on your OP from which I thought you only modified the fortran configuration in configure_petsc.sh. So you are running your configure command in the PETSc root directory?

[ddmoa]

Yes, I ran the command directly in the root directory. I don't think there's any fundamental difference between this and using the script.