On Sun, Feb 10, 2013 at 06:51:23PM +0000, Anton Shterenlikht wrote: > Date: Sun, 10 Feb 2013 08:44:24 -0800 > From: Steve Kargl <s...@troutmask.apl.washington.edu> > To: Boris Samorodov <b...@passap.ru> > Subject: Re: 7+ days of dogfood > > > > FFLAGS = -O2 -pipe -march=native -mtune=native > > > > I don't like using "=" for FLAGS at make.conf... > > > > > FFLAGS+= -funroll-loops -ftree-vectorize > > > > ... as well as defaults overriding. > > > > FFLAGS are the options used while compiling Fortran. Having > spent years contributing to and testing gfortran, I am fairly > comfortable with these options. > > Do you recommend these FFLAGS settings to all > users of gfortran (via lang/gcc4x)? >
Yes. > For example, I use blas, lapack, slatec, atlas, etc. > Should I use these FFLAGS too? Without knowing what options you currently use, I cannot make a concrete recommendation other than I've extensive tested the above options with my own codes and the Polyhedron testsuite. Oh, I do recommend that one should avoid -ffast-math (unless one really understands what it actually does). -- Steve _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
