About

The Functional Mock-up Interface (FMI) specification intentionally provides only the most essential and fundamental functionalities in the form of a C interface. On the one hand, this increases flexibility in use and portability to virtually any platform. On the other hand, such a low-level approach implies several prerequisites a simulation tool has to fulfil in order to be able to utilize such an FMI component.

The FMI++ Python Interface is a Python wrapper for the FMI++ Library, which intends to bridge the gap between the basic fuctionality provided by the FMI specification and the typical requirements of simulation tools. The FMI++ Library provides high-level functionalities that ease the handling and manipulation of FMUs, such as numerical integration, advanced event-handling or state predictions. This allows FMUs to be integrated more easily, e.g., into fixed time step or discrete event simulations.

This package provides a stand-alone version of the Python interface for the FMI++ Library.

Documentation

The FMI++ Python Interface provides several classes that allow to manipulate FMUs for ModelExchange and for Co-Simulation. An overview on how to use it can be found here.

More extensive background information can be found in the documentation of the FMI++ Library.

Installation on Windows

• use pip to install the FMI++ Python Interface from the PyPI as pre-compiled binary package (Python wheel):

  $ pip install fmipp --prefer-binary

--prefer-binary should guarantee that binary distributions (wheels) are chosen over source distributions for the installation. Alternatively --only-binary :all: can be used instead to force installing from binary distribution.

Installation on Linux (Ubuntu 20.04)

• make sure to have installed the following prerequisites(e.g. via apt, see package names in brackets below):

  • python (python3) (recommended: version 3.7 or higher)

  • pip (python3-pip)

  • distutils (python3-setuptools)

  • GCC compiler toolchain (build-essential)

  • swig (swig)

  • SUNDIALS library (libsundials-dev)

  • Boost library (libboost-all-dev)

• use pip to install the FMI++ Python Interface from the PyPI via source distribution:

  $ python3 -m pip install fmipp