[Beowulf] Re: fast compiler question (pathscale/portland group/gcc)
elken at pathscale.com
Thu Feb 8 14:07:40 PST 2007
> Date: Wed, 07 Feb 2007 21:11:50 -0500
> From: Joe Landman <landman at scalableinformatics.com>
> Subject: [Beowulf] fast compiler question (pathscale/portland
> Rebuilding a code that uses sse2 inlines. Apart from setting up the
> appropriate include path for the intrinsic headers, are there any magic
> switches I need to set? I had done this a while ago, and now I am
> rebuilding someone-elses-code, and trying to remember what I did before.
> Most interested in gcc/pathscale.
Regarding PathScale Compilers, I have this from one of our compiler engineers:
If the code already uses SSE2 intrinsics, the PathScale compiler does not need
any "magic switches" for SSE2 intrinsics to be enabled. Some applications may
need a configuration switch like --enable-sse for the application to use sse
intrinsics. This is just a configure switch for the application, and not an
option for the compiler.
Tom Elken Manager, Performance Engineering
tom.elken at qlogic.com QLogic Corporation
650.934.8056 System Interconnect Group
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