In fact, by using the +gcc5 as Craig suggested, I got the compiled libraries straight away without the building. Perhaps it is not tuned exactly to my machine but for my purpose, it seems to be fast enough.
Laurent > Le 15 mars 2018 à 17:37, David Strubbe <dstru...@macports.org> a écrit : > > ATLAS just always takes a long time to build. It stands for "Automatically > Tuned Linear Algebra System," so all that time is the automatic tuning. If > you want a quicker build, use OpenBLAS or the built-in Accelerate framework. > > David > > On Thu, Mar 15, 2018 at 8:21 AM, Joshua Kordani <jkord...@lsa2.com > <mailto:jkord...@lsa2.com>> wrote: > This package will take a long time to build, although don't be surprised if > it fails on the first try. I can never get it to work on the first try with > default settings. > > > > On 3/15/18 9:45 AM, Craig Treleaven wrote: > On Mar 15, 2018, at 8:29 AM, pagani laurent via macports-users > <macports-users@lists.macports.org > <mailto:macports-users@lists.macports.org>> wrote: > > I reinstalled gcc5, both gcc5 and 7 are active but the result is the same. > I desactivate gcc7 but Xcode gcc takes precedence upon Macports/gcc5 even > when I deactivate/reactivate the later. > > I’m not familiar with ATLAS but I think you need to choose one of the > variants in order to build it with another compiler: > > $ port variants atlas > atlas has the variants: > gcc49: build using macports-gcc-4.9 > * conflicts with gcc5 mpclang37 perf > gcc5: build using macports-gcc-5 > * conflicts with gcc49 mpclang37 perf > mpclang37: use mp-clang-3.7 and gfortran > * conflicts with gcc49 gcc5 perf > nofortran: Forgo use of fortran compiler > universal: Build for multiple architectures > > Perhaps try > > sudo port install atlas +gcc5 > > Also, some packages can take a very long time to build. Adding the verbose > flag can give you more feedback as the build progresses: > > sudo port -v install atlas +gcc5 > > Craig > > "S'il n'y a pas de solution, c'est qu'il n'y a pas de problème" (devise Shadok)