search

stan-dev / cmdstan

CmdStan, the command line interface to Stan
https://mc-stan.org/users/interfaces/cmdstan
BSD 3-Clause "New" or "Revised" License
210 stars 93 forks source link

Recommend using `ccache`? #1265

Open andrjohns opened 4 months ago

andrjohns commented 4 months ago

Summary:

There can a lot of repeated compilation across different Stan programs if the same templates are being instantiated. We could suggest using ccache to help reduce compile times?

Current Version:

v2.34.1

WardBrian commented 4 months ago

I thought ccache only cached object files? If so, the fact that we precompile main.o and have a precompiled header is probably already as good as you can get, but id be interested if you’ve tried it and seen even more speed ups

andrjohns commented 4 months ago

Hmm good point, I should actually do some testing. I'll have a look and see if there's a noticeable difference

WardBrian commented 3 months ago

@andrjohns did you have a chance to see if this made a difference?