On Sat, Jun 09, 2007 at 14:52:27 +0200, Frank B=FCttner wrote:
> Kurt Roeckx schrieb:
> > On Fri, Jun 08, 2007 at 05:00:37PM -0700, David Schwartz wrote:
> >>> Using the Intel 9.1 compiler on an IA64 system the performance of
> >>> AES and (to a lesser extent) other algorithms implemented in
> >>> assembly language is less than that using gcc. I've included the
> >>> speed output for several of the algorithms below.
> >>>
> >>> Is this a know issue and is there a workaround other than switching
> >>> to gcc?
> >> You should compare with the best optimization flags for each compile=

r. I
> >> don't see any of the typical icc optimization flags used,
> >> like -ip, -march=3Dpentium4, -msse3, -xP, or whatever is appropriate=

for your
> >> CPU.

> >=20
> > I don't think -march=3Dpentium4 is going to work on an IA64, and I ha=

ve my
> > doubts about sse3 too.
> >=20
> > Note that IA64 is not an x86_64/amd64/x64.
> >=20
> >=20
> > Kurt

>=20
> Have you try the last version of the intel compiler(10.0)?
>=20


Not yet, the system I'm building on does not have the 10.0 compilers.
However, that is something I intend to try.

--=20
Iain Morgan
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