[CP2K-user] [External] [CP2K:21837] Re: Unusable FFTW?

[Sheppard, Raymond W]

Hi,
  Sorry I was slow, but I have been working in the yard over the weekend.

I think I found their conftest.c:

#include <fftw3.h>
int
main ()
{
        fftw_plan *plan;
        fftw_complex *a1, *a2;
        fftw_execute_dft(plan, a1, a2);
  ;
  return 0;
}

I renamed the file a little and get errors related to their code.  I did notice they put their directory in quotes.  I do not think that matters because there is only one, but let me check.  Nope, same result as below.


$ mpicc -c -O2 -fPIC -fno-omit-frame-pointer -fopenmp -g -mtune=native -fpermissive  -I/opt/cray/pe/fftw/3.3.10.10/x86_rome/include -o rayfftw.test fftw.test.c

fftw.test.c: In function ‘main’:
fftw.test.c:9:26: warning: passing argument 1 of ‘fftw_execute_dft’ from incompatible pointer type [-Wincompatible-pointer-types]
    9 |         fftw_execute_dft(plan, a1, a2);
      |                          ^~~~
      |                          |
      |                          struct fftw_plan_s **
In file included from fftw.test.c:1:
/opt/cray/pe/fftw/3.3.10.10/x86_rome/include/fftw3.h:196:41: note: expected ‘fftw_plan’ {aka ‘struct fftw_plan_s * const’} but argument is of type ‘struct fftw_plan_s **’
  196 | FFTW_CDECL X(execute_dft)(const X(plan) p, C *in, C *out);              \
      |                           ~~~~~~~~~~~~~~^
/opt/cray/pe/fftw/3.3.10.10/x86_rome/include/fftw3.h:465:1: note: in expansion of macro ‘FFTW_DEFINE_API’
  465 | FFTW_DEFINE_API(FFTW_MANGLE_DOUBLE, double, fftw_complex)
      | ^~~~~~~~~~~~~~~
gcc: warning:  -I/opt/cray/pe/fftw/3.3.10.10/x86_rome/include: linker input file unused because linking not done
gcc: error:  -I/opt/cray/pe/fftw/3.3.10.10/x86_rome/include: linker input file not found: No such file or directory


Ray again

________________________________________
From: cp2k at googlegroups.com <cp2k at googlegroups.com> on behalf of Konstantin Tokarev <annulen at gmail.com>
Sent: Saturday, September 13, 2025 5:47 AM
To: cp2k
Subject: Re: [External] [CP2K:21833] Re: Unusable FFTW?

Error is:

configure:16952: /N/soft/sles15sp6/cp2k/build/cp2k-2025.2/tools/toolchain/build/libvdwxc-0.4.0/config/wrappers/wrap-mpicc -c -O2 -fPIC -fno-omit-frame-pointer -fopenmp -g -mtune=native -fpermissive  -I'/opt/cray/pe/fftw/3.3.10.10/x86_rome/include' conftest.c >&5
conftest.c:65:10: fatal error: fftw3.h: No such file or directory
   65 | #include <fftw3.h>
      |          ^~~~~~~~~
compilation terminated.

Does file /opt/cray/pe/fftw/3.3.10.10/x86_rome/include/fftw3.h exist?

--
You received this message because you are subscribed to the Google Groups "cp2k" group.
To unsubscribe from this group and stop receiving emails from it, send an email to cp2k+unsubscribe at googlegroups.com<mailto:cp2k+unsubscribe at googlegroups.com>.
To view this discussion visit https://groups.google.com/d/msgid/cp2k/a5842ef5-55b3-4765-8ab3-b461b9c357f4n%40googlegroups.com<https://groups.google.com/d/msgid/cp2k/a5842ef5-55b3-4765-8ab3-b461b9c357f4n%40googlegroups.com?utm_medium=email&utm_source=footer>.

-- 
You received this message because you are subscribed to the Google Groups "cp2k" group.
To unsubscribe from this group and stop receiving emails from it, send an email to cp2k+unsubscribe at googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/cp2k/CO1PR08MB7643F5E0AF2BA1AB9A36B5C5A315A%40CO1PR08MB7643.namprd08.prod.outlook.com.