[R-pkg-devel] [External] Guidelines on use of snow-style clusters in R packages?

On Wed, 3 Jun 2020 08:54:56 -0500 (CDT)

If you use [a cluster] passed to you it would be best to leave
it in the state you found it at least as far as the search path and
global environment are concerned.

Thanks for this advice! I guess that clusterExport() is also out of
question in package code, then.

So use foo::bar instead of library().

I have found out that R Internals documents serialize() to use a very
efficient representation for package environments (a pseudo-SEXPTYPE
followed by the name). Does it mean that it is a good idea to pass
unexported private worker functions to parLapply(cl, X, fun), since the
package environment is not sent over network?

Best regards,
Ivan