Ising Model Simulation

Two and three dimensional Ising model simulations using Swendsen-Wang algorithm.

Compiling

Open the project's directory in terminal. Type make (or mingw32-make depending on your environment) to compile.

Examples

Two dimensional Ising model simulation

Run main_2 and enter the parameters. You can also write the parameters in a file and use it as the input.

Example command:

For Windows:

main_2 < ./examples/input_2/1.txt

For macOS or a Linux based OS:

./main_2 < ./examples/input_2/1.txt

The results will be written into the files specified in the input.

You can visualize the results using plot.py.

Note

You need to have matplotlib installed for this step.

Example command:

python plot.py -M ./examples/output_2/m1.txt -S ./examples/output_2/s1.txt --save ./examples/output_2/figure1.png

• You may need to type python3 instead of python depending on your environment.
• --save is optional.
• If you do not want matplotlib GUI to show up, you can pass the argument --no-gui.
• If you need help about the usage of plot.py, you can try python plot.py -h.

Three dimensional Ising model simulation

This is similar to the two dimensional case.

Example commands:

For Windows:

main_3 < ./examples/input_3/1.txt
python plot.py -M ./examples/output_3/m1.txt -S ./examples/output_3/s1.txt --save ./examples/output_3/figure1.png

For macOS or a Linux based OS:

./main_3 < ./examples/input_3/1.txt
python plot.py -M ./examples/output_3/m1.txt -S ./examples/output_3/s1.txt --save ./examples/output_3/figure1.png

See here for more.