Thanks so much for the quick reply Dmitry. So if I'm getting you right, with fast-maths off and disable-fma on, I can pretty much run any floating point calculations and the results are always guaranteed to be deterministic (the same), even across platforms/architectures/etc. as long as I'm using the same version of the compiler? If so that would be fantastic.
David On Wednesday, February 26, 2020 at 12:59:44 AM UTC-6, David Nadaski wrote: > > I've seen a slide from SIGGRAPH 2019 whose page 45 says "to increase > floating point precision/determinism, don't use --opt=fast-maths and do use > --opt=disable-fma" > My question is if doing as the slides suggests makes programs compiled w/ > ispc completely deterministic. > -- You received this message because you are subscribed to the Google Groups "Intel SPMD Program Compiler Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/ispc-users/1f7cb640-c98b-4c33-aaff-49e5ff5e7683%40googlegroups.com.
