Re: Compiling applications for the new SMP processors

["Jerin Joy" <jerinjoy at gmail dot com>]

response to an old query:
I came across the 'mtune' option for gcc:
http://www.dis.com/gnu/gcc/i386-and-x86-64-Options.html

which allows me to specify my instruction set version. Can I achieve
better performance in my applications (firefox, thunderbird) by
specifying my instruction set with this option when compiling from
source?
I was also looking for this in addition to the SMP support.

thanks,
Jerin


On 7/12/06, Olivier Delannoy <olivier.delannoy@gmail.com> wrote:
> Application that are already multithread will benefits directly of SMP
> capabilities. This is not related to the way you compile your
> application only to the capability of the underlying OS.
>
>
>
> On 7/11/06, Tim Prince <timothyprince@sbcglobal.net> wrote:
> > Jerin Joy wrote:
> > > Hi,
> > >
> > > I'm a newbie here. A friend of mine got a new dual core processor
> > > laptop. I was wondering if compiling standard applications using gcc
> > > will build binaries which can fully utilize the hardware - 686
> > > instruction set with SMP. I'm assuming here that the application is
> > > multithreaded.
> > > If it does, is there an flag to be passed during compile time?
> > gcc 4.2 supports OpenMP, requiring appropriate #pragma omp directives,
> > along with -fopenmp flag.
> >
> >


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