[Q-e-developers] multiple definitions of fftw_version

[Filippo SPIGA]

Ciao Lorenzo,

thanks for reporting this. Did you run the configure and then immediately run make directly or did you manually hack the make.sys after configure and before run make?

--
Mr. Filippo SPIGA, M.Sc.
Quantum ESPRESSO Foundation
http://www.quantum-espresso.org ~ skype: filippo.spiga

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On Jan 12, 2016, at 10:04 AM, Lorenzo Paulatto <lorenzo.paulatto at impmc.upmc.fr> wrote:
> Hello,
> and thank you for the new 5.3.0 release.
> 
> I have a problem compiling it with ifort 15.0.0 and linking against the intel 
> fftw3 interface:
> 
> ifort  -o pw.x \
>           pwscf.o  libpw.a ../../Modules/libqemod.a ../../FFTXlib/libqefft.a 
> ../../flib/ptools.a ../../flib/flib.a ../../clib/clib.a ../../iotk/src/
> libiotk.a -Wl,--start-group /opt/dev/intel/2015.0.022/composer_xe_2015.0.090/
> mkl/lib/intel64/libmkl_scalapack_lp64.a  /opt/dev/intel/2015.0.022/
> composer_xe_2015.0.090/mkl/lib/intel64/libmkl_intel_lp64.a /opt/dev/intel/
> 2015.0.022/composer_xe_2015.0.090/mkl/lib/intel64/libmkl_core.a /opt/dev/
> intel/2015.0.022/composer_xe_2015.0.090/mkl/lib/intel64/libmkl_sequential.a  /
> opt/dev/intel/2015.0.022/composer_xe_2015.0.090/mkl/lib/intel64/
> libmkl_blacs_sgimpt_lp64.a -Wl,--end-group -lpthread -lm  /opt/dev/intel/
> 2015.0.022/composer_xe_2015/mkl/interfaces/fftw3xf/libfftw3xf_intel.a      -L/
> opt/sgi/mpt/mpt-2.11/lib -lmpi -lpthread /usr/lib64/libcpuset.so.1 /usr/lib64/
> libbitmask.so.1
> /opt/dev/intel/2015.0.022/composer_xe_2015.0.090/mkl/lib/intel64/
> libmkl_intel_lp64.a(fftw_version.o):(.rodata+0x0): multiple definition of 
> `fftw_version'
> ../../FFTXlib/libqefft.a(fft_stick.o):(.data+0x430): first defined here
> ld: Warning: size of symbol `fftw_version' changed from 8 in ../../FFTXlib/
> libqefft.a(fft_stick.o) to 25 in /opt/dev/intel/2015.0.022/
> composer_xe_2015.0.090/mkl/lib/intel64/libmkl_intel_lp64.a(fftw_version.o)
> make[2]: *** [pw.x] Error 1
> make[2]: Leaving directory `/lustrework/paulatto/espresso/PW/src'
> make[1]: *** [pw] Error 1
> make[1]: Leaving directory `/lustrework/paulatto/espresso/PW'
> make: *** [pw] Error 1
> 
> 
> It is not especially clear to me what the source of the problem is, but I 
> guess that the fftw.h which comes with FFTXlib does not match the one in
> /opt/dev/intel/2015.0.022/composer_xe_2015.0.090/mkl/include/fftw/fftw.h
> 
> Copying it over does not solve the problem as I get:
> In file included from fft_stick.c(21):
> fftw.c(163): error: identifier "notw_codelet" is undefined
>  extern notw_codelet fftw_no_twiddle_1;
>         ^
> 
> t
> Neither can I remove fftw.h and add a -I/opt/dev/intel/... because of how the 
> makefile is made:
> make: *** No rule to make target `fftw.h', needed by `fft_stick.o'.  Stop.
> 
> 
> I noticed that fftw_version is only defined in fftw.c, which, if I understand 
> correctl, should not be compiled as I am using -D__FFTW3, but it is included 
> from fft_stick.c
> 
> 
> I finally solved the problem by commenting out the definition of ffw_version 
> from FFTXlib/fftw.c, but I'm not sure the solution is ideal and I also have 
> doublt about which fftw is actually being used (the optimized intel one or the 
> one included?)
> 
> 
> 
> Another solution is to use -D__DFTI instead, which has some other advantages, 
> but Carlo expressed some concern about its thread safety and I'm left with the 
> doubt about what is actually being used in the code.
> 
> 
> Could the experts have a go at this?
> 
> I'm attaching the relevant make.sys, renamed
> 
> 
> -- 
> Dr. Lorenzo Paulatto
> IdR @ IMPMC -- CNRS & Université Paris 6
> +33 (0)1 44 275 084 / skype: paulatz
> http://www.impmc.upmc.fr/~paulatto/
> 23-24/4é16 Boîte courrier 115, 
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