trying to install ATLAS

[pagani laurent]

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 <dstrubbe at 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 <jkordani at lsa2.com <mailto:jkordani at 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 at lists.macports.org <mailto:macports-users at 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)

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