trying to install ATLAS

[Marius Schamschula]

I have built atlas against gcc6, but have never bothered to build it against gcc7. For the reason: see https://trac.macports.org/ticket/52606

Using atlas is sub-optimal for macOS 10.11+, because of the way the OS kernel handles timing. Never mind, the new file system under High Sierra…

I no longer choose atlas variants for any ports.

> On Mar 15, 2018, at 11:56 AM, pagani laurent via macports-users <macports-users at lists.macports.org> wrote:
> 
> 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 <mailto: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)
> 

Marius
--
Marius Schamschula




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