В Wed, 16 Nov 2022 07:29:25 +0100
Riko Kelter <riko.kel...@uni-siegen.de> пишет:
> if (nzchar(chk) && chk == "TRUE") {
> # use 2 cores in CRAN/Travis/AppVeyor
> num_workers <- 2L
> }
The check in parallel:::.check_ncores is a bit different:
chk <- tolower(Sys.getenv("_R_CHECK_LIMIT_CORES_", ""))
if (nzchar(chk) && (chk != "false")) # then limit the workers
Unless you actually set _R_CHECK_LIMIT_CORES_=FALSE on your machine
when running the checks, I would perform a more pessimistic check of
nzchar(chk) (without additionally checking whether it's TRUE or not
FALSE), though copy-pasting the check from parallel:::.check_ncores
should also work.
Can we see the rest of the vignette? Perhaps the problem is not with
the check. For example, a piece of code might be implicitly spawning a
new cluster, defaulting to all of the cores instead of num_workers.
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--
Best regards,
Ivan
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