Hi I have had that issue in the past (with the same fftw version) because MPI was not installed. I installed MPI and the warning did not show up anymore.
Regards Dr. Israel Perez Institute of Engineering and Technology Department of Physics and Mathematics, Universidad Autónoma de Ciudad Juárez Av. del Charro 450 Nte., Col. Partido Romero, Ciudad Juárez, Juarez Chihuahua. Mexico C. P. 32310 Tel: +52 (656) 688 4887 National Council of Science and Technology Insurgentes Sur No. 1582, Col. Crédito Constructor, C.P. 03940 Del. Benito Juárez, México D. F. ________________________________ From: Wien <[email protected]> on behalf of Laurence Marks <[email protected]> Sent: Sunday, September 13, 2020 12:00 PM To: A Mailing list for WIEN2k users <[email protected]> Subject: Re: [Wien] parallel instalation of Wien2k: elpa, fftw Addendum: I think fftw_mpi is required for parallel. I have never had issues with it, although I don't agree with their compilation options. I suspect you made a minor mistake in your configuration. --- Prof Laurence Marks "Research is to see what everyone else has seen, and to think what nobody else has thought", Albert Szent-Gyorgi www.numis.northwestern.edu<http://www.numis.northwestern.edu> On Sun, Sep 13, 2020, 08:02 Laurence Marks <[email protected]<mailto:[email protected]>> wrote: First, there are 3 parallel modes: K-points, omp & mpi which can be combined. Second, mpi requires scalapack, often via mkl. Elpa is better than the scalapack codes. It is not required for mpi. Fftw is useful but less important. Lastly, while the siteconfig tools tries to find your fftw etc it is not perfect and the user has to check. Obviously it has failed in your case and the correct search path has not been used. Try again, and be careful. _____ Professor Laurence Marks "Research is to see what everybody else has seen, and to think what nobody else has thought", Albert Szent-Gyorgi www.numis.northwestern.edu<http://www.numis.northwestern.edu> On Sun, Sep 13, 2020, 03:53 Ilias Miroslav, doc. RNDr., PhD. <[email protected]<mailto:[email protected]>> wrote: Hello, to profit from parallelization, one has to install ELPA and the parallel version fftw library. For fftw library I used ./configure --enable-mpi, but Wien2k installator says "!!! WARNING: No MPI version of the FFTW library found!" But my installed fftw-3.3.8/lib contains also libfftw3_mpi.a . Any clues what is wrong ? Maybe it would be better to have defined environmental variables from ELPA, fftw ? Miro _______________________________________________ Wien mailing list [email protected]<mailto:[email protected]> https://urldefense.com/v3/__http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien__;!!Dq0X2DkFhyF93HkjWTBQKhk!CvmULLr0k9MyEjMf55nyQOmkV7gez0GDmf2aEw109pREGq9I0CEu7TLyIboogTiQqc8bdw$ SEARCH the MAILING-LIST at: https://urldefense.com/v3/__http://www.mail-archive.com/[email protected]/index.html__;!!Dq0X2DkFhyF93HkjWTBQKhk!CvmULLr0k9MyEjMf55nyQOmkV7gez0GDmf2aEw109pREGq9I0CEu7TLyIboogTjwi2MggQ$
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