[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

-- 
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