[Pw_forum] FFTW problem

[Stefano Baroni]

sprokuda at dnk.ru wrote:
> Dear Paolo !
> 

>  - that is clear even for such a horrible Linux looser like me, that
>  there are no function with names I need neither in MKL , no in
>  ATLAS. Probably the thing is that fftw_f77 routines should be found
>  in some other place ? if yes, where ?

http://www.fftw.org

Stefano Baroni

> 
> You have to supply "PC" as a precompilation option.
> 
> I have it, and this problem is solved - thank you.
> 
> Please follow the instructions THAT REFER TO THE 
> VERSION OF THE CODE THAT YOU ARE USING, 
> in particular those contained in the sample makefiles
> (install/Make.pc_ifc) and in the manual (pwdocs/manual.tex)
> 
> 
>>cft_3.o(.text+0xea): undefined reference to
>>`fftw3d_f77_create_plan_' [...]
> 
> 
> this problem has been discussed several times in the
> mailing list.
> 
> I'm really apologizing , but I guess I'm subscribed for not so long
> time - I've found nothig ...
> 
> You have to 
> - link to fftw library, and
> 
>  yes, that's the point ...
> 
> - compile with the appropriate number of underscores,
>   as explained in the manual
> 
>   I've tried with one, two and three - no result...
> 
>   Sorry for thre distorsion...
> 
>   Sergey Prokudaylo.
> 
> 
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