[Rd] Does parallel::mclapply work under emulation (Rosetta 2) on Apple Silicon?

[Prof Brian Ripley]

On 15/01/2021 05:53, Michael O'Dell via R-devel wrote:
> Setting aside the documented problems of running R natively on Apple's M1 machines (https://developer.r-project.org/Blog/public/2020/11/02/will-r-work-on-apple-silicon

That's rather dated: see the more recent reports on this list.

/index.html) and similarly the current lack of native versions of many 
eco-system components (e.g. the discussion 
here:https://github.com/neurolabusc/AppleSiliconForNeuroimaging ), will 
code using parallel::mclapply() run as expected (i.e. on Intel hardware) 
under emulation (Rosetta 2)? Has anyone tested this?

Yes: I have no idea why you would think otherwise.  All mclapply uses is 
forking, and the OS on an M1 Mac is the same as that on a (Big Sur) 
Intel Mac (in many cases literally the same, with the same bi-arch 
executables).

-- 
Brian D. Ripley,                  ripley using stats.ox.ac.uk
Emeritus Professor of Applied Statistics, University of Oxford