[Pw_forum] QE-GPU: compilation error with Espresso 5.1

[Axel Kohlmeyer]

On Wed, Sep 10, 2014 at 9:37 AM, Axel Kohlmeyer <akohlmey at gmail.com> wrote:
> On Wed, Sep 10, 2014 at 9:35 AM, Filippo Spiga <spiga.filippo at gmail.com> wrote:
>> Dear Mauro,
>>
>> On Sep 8, 2014, at 9:47 AM, Mauro Sgroi <maurofrancesco.sgroi at gmail.com> wrote:
>>> I'm using now gcc 4.4 wih the internal blas/lapack libraries, just to reduce the complexity of the problem.
>>
>> Bus still, Intel MKL will give you best performance. It is worth the complexity, give it a try!
>>
>>
>>> I modified GPU/install/make_phiGEMM.inc to link with -lgfortran to solve some undefined reference errors.
>>> But now the compilation stops with an undefined reference to `main'.
>>
>> uhm I will look at this, I do not see any problem on my local machine but I will double-check again.
>
> that would happen, if gcc is used as linker instead of gfortran (which
> would also explain the need of adding -lgfortran)

or when you try to link a shared library without the -shared flag.

>
> axel.
>
>
>> F
>>
>> --
>> Mr. Filippo SPIGA, M.Sc.
>> http://filippospiga.info ~ skype: filippo.spiga
>>
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>>
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>
> --
> Dr. Axel Kohlmeyer  akohlmey at gmail.com  http://goo.gl/1wk0
> College of Science & Technology, Temple University, Philadelphia PA, USA
> International Centre for Theoretical Physics, Trieste. Italy.



-- 
Dr. Axel Kohlmeyer  akohlmey at gmail.com  http://goo.gl/1wk0
College of Science & Technology, Temple University, Philadelphia PA, USA
International Centre for Theoretical Physics, Trieste. Italy.