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[R-pkg-devel] Too many cores used in examples (not caused by data.table)

Dirk Eddelbuettel 
Hi Jouni,
On 27 October 2023 at 13:02, Helske, Jouni wrote:
| Actually, the OMP_NUM_THREADS worked for vignettes and testthat tests, but
| didn't help with the examples. However, I just wrapped the problematic example

Now I am confused.

What is your understanding of why it helps in one place and not the other?

| with \donttest as for some reason this issue only happened with a single
| seemingly simple example (hence the "weird" in the earlier NEWS due to
| frustration, I changed this to the CRAN version).
| 
| Thanks for reminding me about the resetting the number of cores, will fix that
| to the next version.

I have an idea for a RcppArmadillo-based helper function. We can save the
initial values of the environment variable in .onLoad and cache it. A simple
helper function pair can then dial the environment variable down and reset it
to the cached value.

Dirk

Thread (16 messages)

Helske, Jouni Too many cores used in examples (not caused by data.table) Oct 18 Dirk Eddelbuettel Too many cores used in examples (not caused by data.table) Oct 20 Ivan Krylov Too many cores used in examples (not caused by data.table) Oct 20 Helske, Jouni Too many cores used in examples (not caused by data.table) Oct 24 Greg Hunt Too many cores used in examples (not caused by data.table) Oct 24 Ivan Krylov Too many cores used in examples (not caused by data.table) Oct 24 Spencer Graves Too many cores used in examples (not caused by data.table) Oct 24 Dirk Eddelbuettel Too many cores used in examples (not caused by data.table) Oct 24 Jan van der Laan Too many cores used in examples (not caused by data.table) Oct 24 Dirk Eddelbuettel Too many cores used in examples (not caused by data.table) Oct 25 Helske, Jouni Too many cores used in examples (not caused by data.table) Oct 25 Dirk Eddelbuettel Too many cores used in examples (not caused by data.table) Oct 27 Helske, Jouni Too many cores used in examples (not caused by data.table) Oct 27 Dirk Eddelbuettel Too many cores used in examples (not caused by data.table) Oct 27 Helske, Jouni Too many cores used in examples (not caused by data.table) Oct 30 Dirk Eddelbuettel Too many cores used in examples (not caused by data.table) Oct 30