I have a Fortran codebase which takes about a week to finish a simulation on 10 cores. Rewriting this code in Python and running would take about 50 years to fi

I have a Fortran codebase which takes about a week to finish a simulation on 10 cores. Rewriting this code in Python and running would take about 50 years to finish the same simulation in serial mode, and at best 5 years if run in parallel on 10 cores.