pystospa

A Python binding of a C++ software package for stochastic simulations of spatially extended systems, StoSpa2. Code-base has been completely refactored since the previous version of StoSpa. Python bindings have also been included.

Installation

Easy way

pip install pystospa

Hard way

After cloning the following repository

git clone https://github.com/BartoszBartmanski/StoSpa2.git --recursive

do the following

cd StoSpa2
python setup.py install

This way of installing pystospa assumes the following packages are installed are met

scikit-build
setuptools
wheel
cmake

Example

Let's consider the following chemical reaction

A \rightarrow \emptyset

happening at rate k. The python code for this simulation is as follows

import pystospa as ss

v = ss.Voxel([100], 1.0)
r = ss.Reaction(1.0, lambda x, y : x[0], [-1])
v.add_reaction(r)

s = ss.Simulator([v])
s.run("example.dat", 0.01, 500)

After importing pystospa, we create the voxel and reaction objects with

v = ss.Voxel([100], 1.0)
r = ss.Reaction(1.0, lambda x, y : x[0], [-1])

and then we add the reaction object to the voxel object.

v.add_reaction(r)

And finally, we pass the voxel objects, contained in a list, to a simulator object

s = ss.Simulator([v])
s.run("example.dat", 0.01, 500)

and we invoke the run function of the Simulator class, to run a stochastic simulation saving the state every 0.01 seconds for 500 steps.

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