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.. image:: https://git.km3net.de/simulation/km3buu/badges/master/pipeline.svg
:target: https://git.km3net.de/simulation/km3buu/pipelines
.. image:: https://git.km3net.de/simulation/km3buu/badges/master/coverage.svg
The KM3BUU project is an integrated environment for the GiBUU studies
within the KM3NeT experiment.
Installation
------------
The main `KM3BUU` project is python based using ``singularity`` for running GiBUU.
The python environment is required to have version 3.5 or higher and singularity
is required to have version 3.3 or higher (e.g. `v3.4 <https://sylabs.io/guides/3.4/user-guide/>`__). In the default workflow the singularity image is build remote from the
KM3NeT docker server, but it can also be built locally (see :ref:`Local Machine`).
`KM3BUU` is not provided via python package manager and can be installed as follows.
First the repository needs to be cloned:
::
git clone https://git.km3net.de/simulation/km3buu
cd km3buu
After downloading the repository the package can be installed via:
GiBUU Only Usage
~~~~~~~~~~~~~~~~
The repository design also allows the usage without python environment.
In this scenario the singularity container containing the GiBUU environment
has to be built first. This can be done locally if root privileges are available:
If root privileges are not available, e.g. running the `KM3BUU` on a compute cluster,
it also can be done remote via the KM3NeT docker server:
::
make buildremote
If the python environment is used afterwards, the file path of the container can
be written to the configuration file and is not required to be built again.
For running GiBUU the used jobcards have to be moved to a sub-folder within the
jobcards folder of the project. Each sub-folder represents a set of jobcards,
which can be passed to GiBUU by:
::
make run CARDSET=examples
This specific command runs all jobcards within the ``jobcards/examples`` folder
and stores the output inside the folder ``output``. The folder structure
is applied from the ``jobcards``\ folder.
Tutorial
--------
The python framework is build around the GiBUU workflow, i.e. a jobcard is
processed and the output files are written out. The jobcards are technically
FORTRAN namelists and can be created using a `Jobcard` object. In the example
this is done via loading an existing jobcard:
.. code-block:: python3
>>> from km3buu.jobcard import Jobcard, read_jobcard
>>> jc = read_jobcard("jobcards/examples/example.job")
In the next step the jobcard is processed:
.. code-block:: python3
>>> from km3buu.ctrl import run_jobcard
>>> run_jobcard(jc, "./output")
0
Finally, the output can be parsed using a `GiBUUOutput` object:
.. code-block:: python3
>>> from km3buu.output import GiBUUOutput
>>> data = GiBUUOutput("./output")