Speedup UTCI computation

[biglimp]

Discussed in https://github.com/UMEP-dev/UMEP/discussions/768

^{Originally posted by damiendavidINSA July 15, 2025} Hi, You can dramatically speedup the computation of the UTCI with Numba.

You just have to add the numba library and decorators:

from numba import float64, vectorize

@vectorize(
    [
        float64(
            float64,
            float64,
            float64,
            float64,
        )
    ],
    cache=True,
)
def utci_polynomial(D_Tmrt, Ta, va, Pa):

Here is the resulting file: UTCI_calculations_UTCI_OPTIM.py.txt

Regards

[biglimp]

@damiendavidINSA , there is a non existing function (utci_polynomial_single) that is called in your example.

[j3r3m1]

Isn't it a way to speedup ? =)