[Rd] OpenBLAS in everyday R?

[Juan Telleria]

Multi-threaded Math Libraries (Trough OpenBlas), taking into account that
today's laptops have a minimum of 2-4 cores, are an important topic, and in
my opinion, shall be included in R for the general interest.

I think that the way to go would be to create a configuration setting in
R's options(OpenBlas= TRUE|FALSE) which enables or disables OpenBlas in an
easy way, which by default shall be in FALSE (In order to avoid issues with
parallel libraries).

The key point would be that each time you open a new R session, a 1 liner
informative comment arises that tells you:
a) Whether OpenBlas is enabled or disabled.
b) And how many cores it uses (Setting also configurable through
options(...))

In a shape just as Microsoft R Open does.

Kind regards,
Juan Telleria

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