[Rd] compiler flags for performance
pe|j@@z @end|ng |rom y@hoo@co@uk
Thu Jun 13 17:05:13 CEST 2019
I'd like to ask, and I believe this place here should be best as who can
know better, if building R with different compilers and opt flags is
something worth investing time into?
Or maybe this a subject that somebody has already investigated. If yes
what then are the conclusion?
Reason I ask is such that, on Centos 7.6 with different compilers from
stock repo but also from so called software collections, do not
render(with flags for performance) an R binaries which would perform any
better, according to R-benchmark-25 at least, then "vanilla" packages
shipped from distro.
And that makes me curious - is it because R is such a case which is
prone to any compiler performance optimizations?
Maybe there is more structured and organized way to conduct such
What do devel can say and advise with regards to compile-for-performance
many thanks, L.
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