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

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

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.

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.

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.