[PD] ICC compile [or: PD + P4 + Linux = massive headache!]
TimBlechmann at gmx.net
Mon May 10 01:00:47 CEST 2004
> After almost constant fighting with nastiness like denormal numbers
> and unexplained CPU spikes with PD under Linux on a P4 processor, I
> have decided to look into recompiling it using ICC. I reached this
> conclusion on that grounds that PD never ran so terribly before when I
> used windoze, and it runs quite nice with an Athlon processor under
> Linux, so I figure it must be a compiler issue.
i'm not completely shure how icc for ia32 can handle denormals ... their
64bit compiler has a flag to flush denormals to zero, but not the ia32
well, there is pd's PD_BADFLOAT macro that _should_ to that, too, but
this has only effect if the nubers are already denormal, so maybe it's
a good idea to reset the value to flush every number a 24 / 32 bit dac
would consider to be zero to zero...
> Can anyone give me a set of recommended flags, or any other helpful
> tips, for doing this? I'm still stuck trying to figure out how to get
> ICC working [+ waiting for stupid fscking 'registration key' to arrive
if you are using the current devel branch from cvs, just configure with
--enable-icc --enable-optimize=pentium4 ... i didn't wanted to edit my
makefiles every time...
Tim mailto:TimBlechmann at gmx.de
The only people for me are the mad ones, the ones who are mad to live,
mad to talk, mad to be saved, desirous of everything at the same time,
the ones who never yawn or say a commonplace thing, but burn, burn,
burn, like fabulous yellow roman candles exploding like spiders across
the stars and in the middle you see the blue centerlight pop and
everybody goes "Awww!"
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