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 : http://software.intel.com/sites/products/documentation/hpc/mkl/mklman/GUID-90E46168-7AD3-4EF3-958B-8224AD2E249D.htm Good luck .
