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Cortix is a Python library for system-level module coupling, execution, and analysis.

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Build Status PyPI version PyPI - Python Version AUR Binder

What is Cortix?

  • Cortix is a Python library for system-level module coupling, execution, and analysis.
  • Cortix takes as input a collection of computational modules and provides an environment for the coupling of those modules into a single simulation.
  • Cortix handles:
    • Communication between the modules
    • Numerical integration
    • Data visualization

The basic concepts in Cortix are the creation of an Application and a Simulation involving Tasks.


Cortix can be installed on any Unix-based machine via pip. Simply run

pip install cortix

to install the latest version of cortix.


Cortix is a library and it is best used when copied to its own directory, say inside a project directory of your choice, e.g., /somepath/myproject/cortix/, or anywhere else in your system, e.g., /somepath/cortix. Then add either /somepath/myproject/cortix to $PYTHONPATH or /somepath/cortix to $PYTHONPATH, respectively.

Cortix has a directory (examples/) that contains examples for input files, and a driver file. At the moment these input files are past files used in the development of Cortix. A driver file is needed to run Cortix. There is an example (examples/ that can be copied to say: /somepath/ or /somepath/myproject/ An input configuration (xml) file is also needed. An example is provided in the examples/input/ directory (cortix-config.xml). Then to run Cortix, enter the directory of the driver and run the driver ./ which will run an MPI process for Cortix and an additional MPI process for each launched module as a single MPI process or as a pool of processes. To capture the Cortix screen output of log messages (and other standard output messages), issue the bash command / >& screen.out under Linux (inspect the output file screen.out when the run is finished). Extensive logging of runtime information is stored in the <work_dir> directory specified in the cortix-config.xml input file.


Testing is facilitated through PyTest. To execute the tests, run the py.test command from the tests directory.



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