Would this technique confer benefits even when using brms with its default backend and default threading settings? Ten months ago I tried to get cmdstanr up and running, but it just would not work despite significant help from this forum.
My laptop has 8GB of memory + 4 CPU cores and it is running Windows 10. I have dozens of models to fit, and with cores = 4 a single model presently takes about 1h. The kind of speedup described by George_GL would therefore be absolutely wonderful.