trying to install ATLAS

[David Strubbe]

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> 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> 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
>>
>
>
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