[R-SIG-Mac] Apple Silicon aka M1 Macs

[Roy Mendelssohn - NOAA Federal]

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.

-Roy


> 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::testInstalledBasic("both")
> 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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**********************
"The contents of this message do not reflect any position of the U.S. Government or NOAA."
**********************
Roy Mendelssohn
Supervisory Operations Research Analyst
NOAA/NMFS
Environmental Research Division
Southwest Fisheries Science Center
***Note new street address***
110 McAllister Way
Santa Cruz, CA 95060
Phone: (831)-420-3666
Fax: (831) 420-3980
e-mail: Roy.Mendelssohn using noaa.gov www: https://www.pfeg.noaa.gov/

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