Compliation flags

[AntonOellerer]

Hey, is there a certain reason why e.g. the kmeans_openmp benchmark is compiled and linked with -g and -O2, when best performance should be expected without -g and with -O3?
Makefile

[yuhc]

Hi, sorry that I never ran these openmp benchmarks by myself, but I'd say that O3 optimization is faster *in general*. Some algorithms and data structures may fail the higher-degree optimization. I suggest search for the cases where O3 is slower and check whether the pattern appears in this benchmark. (Sent from my phone)

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On Fri, Nov 22, 2019, 11:25 AM Anton Oellerer ***@***.***> wrote: Hey, is there a certain reason why e.g. the kmeans_openmp benchmark is compiled with -g and -O2, when best performance should be expected without -g and with -O3? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#4?email_source=notifications&email_token=ABOLNC6BHAJ4CVPAYPKL5PLQVAIZJA5CNFSM4JQTXQ42YY3PNVWWK3TUL52HS4DFUVEXG43VMWVGG33NNVSW45C7NFSM4H3OJA4Q>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABOLNC5KZYMDZDVFHQTFISDQVAIZJANCNFSM4JQTXQ4Q> .