[R-SIG-Mac] Apple Silicon aka M1 Macs
Roy Mendelssohn - NOAA Federal
roy@mende|@@ohn @end|ng |rom no@@@gov
Tue Nov 17 16:15:27 CET 2020
Thank to all who are working on this. Looks like a lot of work. Also looks like when and if R can run in native mode on the M1 it will be very fast.
> On Nov 17, 2020, at 6:57 AM, Prof Brian Ripley <ripley using stats.ox.ac.uk> wrote:
> Mine (a 8GB MBA) arrived today, so I have started doing some comparisons.
> For the CRAN build of R 4.0.3, §2.8 of R-admin recommends checking the installation with
> pdf("tests.pdf") ## optional, but prevents flashing graphics windows
> Sys.setenv(LC_COLLATE = "C", LC_TIME = "C", LANGUAGE = "en")
> tools::testInstalledPackages(scope = "base")
> tools::testInstalledPackages(scope = "recommended")
> That took 454s (using Rosetta) against 895s for my late-2016 MBP (2.9GHz i5): happily nothing untoward was reported (some recommended packages give differences from reference output on both systems).
> You need to install XQuartz to provide the X11() devices and support for package Tcl/Tk: everything I tried using that worked as expected.
> Having done that post-installation check I would happily use the Intel R on an M1 machine.
> We plan to check many of the Intel-compiled packages under Rosetta.
> There are many hours of work ahead to build/test a native toolchain: our goal is to have a native distribution for R 4.1.0 ca April 2021.
> Brian D. Ripley, ripley using stats.ox.ac.uk
> Emeritus Professor of Applied Statistics, University of Oxford
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> R-SIG-Mac using r-project.org
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