I wonder if any M1 (or M2) user of cmdstanR can share their experiences so far. I am thinking about upgrading my Intel MacBook Pro to M1 but couldn’t quite get my arms around certain issues
toolchain / setup / runtime - are any any major installation hurdles to jump through to get cmdstanr to work? Have you encountered any platform specific bugs (either related to stan or external libraries)?
Memory usage - how does memory usage (both compelling and running models) compared vs x86? If I’m good with a 8Gb MacBook Pro, would I be good with 8Gb M1?
I’ve just started using an M1 Max with 64gb, essentially an upgrade purely for running big models etc. in Stan/R! I’ve had no problems with the toolchain or setup. There are options when you install R (I think) for a specific M1 optimised version. As @spinkney suggests opt for the Apple Silicone versions of things wherever possible. I can’t compare with a previous intel Mac as I used Macs a long time ago and had been using a more powerful windows machine recently instead. On a small test I did the new laptop ran a bunch of models 2.5* faster than my previous laptop - but it could also be due to the higher RAM (previously I had 16gb, now 64)