On Wed, Feb 5, 2014 at 6:16 PM, Vo, Trinh (398C) <Trinh.Vo at jpl.nasa.gov> wrote: > 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
no. it doesn't. > 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? no, but a fftw.c file has to be present to satisfy the build dependencies. the easiest is to create an empty one via: touch fftw.c axel. > > Thank you, > > Trinh Vo > > JPL/CalTech > Research and Technology Staff > > > _______________________________________________ > Pw_forum mailing list > Pw_forum at pwscf.org > http://pwscf.org/mailman/listinfo/pw_forum -- 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.
