FCKit

Fortran toolkit for interoperating Fortran with C/C++.

In addition useful algorithms from ecKit are wrapped with Fortran.

Project website and reference documentation on released versions: https://confluence.ecmwf.int/display/FCKIT

fctest

Unit Testing Framwork for Fortran, made easy.

• C Preprocessor Macros are used to make writing tests extremely fast
• Tests in one file are bundled in a Test Suite (Fortran Module)
• Python script generates a main program for a Test Suite
• Driven by CMake build system ( and ctest )

To use in your ecbuild project

Simply add following line to your project's CMakeLists.txt

ecbuild_add_option( FEATURE FCTEST  DEFAULT ${ENABLE_TESTS}
                    DESCRIPTION "Fortran Unit Testing Framework"
                    REQUIRED_PACKAGES "NAME fckit" )

See src/examples folder how to add and create the unit-tests.

fckit

Various Fortran modules helpful to create mixed-language applications

• MPI
• Logging

Offline build of fckit Python virtual environment

1. On a networked machine, create a complete wheelhouse in <source-dir>/artifacts:

./populate

By default, wheels are downloaded for the calling system and Python interpreter. For a different target, specify compatible platform and Python versions. For example, for Python 3.10 on Linux x86-64:

FCKIT_WHEEL_ARCH=manylinux_2_17_x86_64 FCKIT_WHEEL_PYTHON_VERSION=310 ./populate

ruamel.yaml.clib contains platform-specific code, so these values must match the target. Available compatibility tags can be inspected with python3 -m pip debug --verbose.

2. Copy the artifacts directory to the offline system.

3. Pass its location when configuring fckit:

cmake ... -DARTIFACTS_DIR=<path-to-artifacts-dir>

This makes pip install exclusively from the wheelhouse using --no-index --find-links, without contacting a package index.

License

Please read LICENSE.

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ECMWF