Now while the title of that paper says it involves "fast computing machines", it was the 1950s and HPC (high performance computing) was different then that it is now. If you want a more recent reference, this is a paper in which Monte Carlo is used for a matter modeling problem in a truly HPC sense (more than 24000 CPU cores were used!):
aip.scitation.org/doi/full/10.1063/5.0005754