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@xxxxxxxxx> 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@xxxxxxxxxxxxx> 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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