Data.table: Is there any docs I can find to understand when parallelism is used

[statquant]

Hello, this is a question as opposed to an issue, please kindly refer me to the proper channel if that was not the right one.
I am looking for documentation to understand exactly where data.table uses openMP parallelism, there are cases where I clearly see the parallelism kick in but in cases where I do long by operations it is clearly not.
Is there anything I can use ?

Regards

[MichaelChirico]

I guess we could/should add this to the ?openmp-utils man page.

Extremely user-unfriendly answer in the meantime -- use grep: grep -Elr "#pragma omp (?:for|parallel)" src:

src/forder.c
src/coalesce.c
src/gsumm.c
src/froll.c
src/nafill.c
src/between.c
src/fsort.c
src/frolladaptive.c
src/cj.c
src/types.c
src/fread.c
src/frollR.c
src/reorder.c
src/fifelse.c
src/fwrite.c
src/subset.c