[Pw_forum] Compile QE v-4.3.2

Fabricio Cannini fcannini at gmail.com
Thu Feb 6 01:56:41 CET 2014

Em 05-02-2014 21:16, Vo, Trinh (398C) escreveu:
> Dear QE users,
> In compiling QE in order to know whether the  external fftw  library
> included in Intel MKL (version 13)  is used,  instead of internal fftw
> is used, I changed the name of the file "fftw.c" in the directory "clib"
> into different name.  The compilation failed with following message:
> make[1]: *** No rule to make target `fftw.c', needed by `fft_stick.o'.
>   Stop.
> make[1]: Leaving directory `/home6/ttvo/espresso-4.3.2_test/clib'
> make: *** [libs] Error 2
> This may mean that the the code failed to find the external library and
> continued to use the internal one.  I have one question to confirm what
> I understand, and  I  appreciate if  you could help. if the external
> library is used, does the internal "fftw.c" is still called by some
> subroutine in the code?
> Thank you,
> Trinh Vo

You may want to try mkl's fftw interface instead :


Good luck .

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