/Fortwrap_thermopack_demo

Primary LanguageFortran

Fortwrap_thermopack_demo

Sandbox for playing around with the possibility of using FortWrap with ThermoPack.

The dummy test-case is:

  • constants.f90 : Module that is use'd by all other modules, but is not wrapped.
  • BaseEoS : Abstract class
    • Inheriting classes must override Fres
    • Implements Fideal, dummy function for ideal gas residual helmholtz energy
    • Implements pressure, which calls Fres and Fideal
  • NotIdGas : In directeos.f90 - Concrete class inheriting from BaseEoS
  • VariantEoS : In Variants.f90 - Abstract class inheriting from BaseEoS
    • Inheriting classes must override internal_comp
    • Also contains two parameters not found in BaseEoS (param1 and param2)
    • Implements variant_common_comp
    • Variant1 : Concrete class inheriting from VariantEoS
      • Implements internal_comp
      • Implements Fres, which calls internal_comp and variant_common_comp
    • Variant2 : Concrete class inheriting from VariantEoS
      • Implements internal_comp, but differently than Variant1
      • Implements Fres, which calls internal_comp and variant_common_comp

Some changes have been made to FortWrap in order to make the wrapping work, and to automate generation of PyBind11 bindings.

Moving forward:

  • Implement internal computations that are not wrapped, to ensure that it is possible to make a minimal wrapper.
  • Improve robustness of pybind-bindings generation.

Current workflow

First: Navigate to the top-level directory of the fortwrap project (where setup.py is found) and pip install -e .

Then: Navigate to the fortwrap_thermopack_demo directory (this directory, from now referred to as demo).

Run the script build.sh, which does the following:

  • Compile the Fortran source
  • Build the archive libdemo_fortran.a
  • Move the archive and .mod files to the demo/wrappers directory
  • Run python -m fortwrap -g -i ../FortWrapOptions.txt from the demo/src directory
  • Compile the resulting FortranISOWrappers.f90 and add it to the libdemo_fortran.a archive
  • Compile the .cpp files in the demo/wrappers directory
  • Compile demo/main.cpp

To build the python wrappings, you must additionally run cmake .. && make from the demo/wrappers/build directory.

The demo/wrappers/CMakeLists.txt does the following:

  • Define the pybind_module target
  • Add the demo/wrappers/.cpp files to the target
    • It is the binding module pybind11_bindings.cpp that is used, not bindings.cpp
  • Link to the archive libdemo_fortran.a
  • Link to libgfortran.dylib