Mail Archives: pgcc/2000/02/03/18:43:11
On Thu, Feb 03, 2000 at 01:22:09PM -0500, Pierre Cyr <pcyr AT po-box DOT mcgill DOT ca> wrote:
> application using plenty of templates and also very computation
> intensive. I get some disturbing numerical errors especially when my
> program is compiled with no optimization options.
Could these be accumulated rounding errors? the x86 architecture does not
support ieee fp (unless done in software ;->), so optimizations can cause
different results, even if the code looks the same.
You can try to work around this by linking against -mieee and using
-ffloat-store.
> under /usr/local/pgcc/... and now I'm stuck. How do I get get my
> system to recognize that there is indeed a compiler there.
Just call it, if compiled correctly (I assume so) it will find istelf:
/usr/local/bin/pgcc (It might be named differently, like
/usr/local/pgcc/bin/gcc)
Maybe Mandrake has newer versions as a mandrake-rpm-package?
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