Hi, I installed fftw as follows (creating single- and double-precision versions) :
./configure --enable-threads --enable-float --prefix=/home/kudesias/fftw make make install make distclean ./configure --enable-threads --prefix=/home/kudesias/fftw make make install I also used export CPPFLAGS=-I/home/kudesias/fftw/include export LDFLAGS=-L/home/kudesias/fftw/lib ( Initially I used I in place of L so I corrected it) On using the configure script ./configure --enable-mpi I get the following error then checking how to hardcode library paths into programs... immediate checking for special C compiler options needed for large files... no checking for _FILE_OFFSET_BITS value needed for large files... no checking for _LARGEFILE_SOURCE value needed for large files... 1 checking for sqrt in -lm... yes checking for fftw3.h... configure: error: Cannot find the default external FFT library (fftw3). I will be glad if you can help with this. Thanks On Thu, Jun 25, 2009 at 2:08 AM, Florian Dommert < [email protected]> wrote: > * Shobhit Kudesia <[email protected]> [2009-06-25 01:55:00 +0530]: > > > Hi , >> >> During the ./configure of gromacs on my Bash Shell, I get the following >> error: >> >> configure: error: Cannot find fftw3f library >> >> I have installed fftw3 files in a directory other than usr/local. I >> have installed fftw3 both with double and single precision but I still >> get the error while configuration of GROMACS for default single >> precision. I have also included the libraries usinG CPPFLAGS & >> LDFLAGS. >> > > If you have installed the single version of FFTW3 and supply the > corresponding CPPFLAGS and LDFLAGS to configure then the script will > find the libraries. So two errors are very likely though we do not > anything about your installation: > > * a small typo in the configure line ( if you present it here, everybody > can > judge this ) > > * the installation of the single precision fftw3f failed for any reasons > > Flo > >> >> Any help will be appreciated >> _______________________________________________ >> gmx-users mailing list [email protected] >> http://lists.gromacs.org/mailman/listinfo/gmx-users >> Please search the archive at http://www.gromacs.org/search before >> posting! >> Please don't post (un)subscribe requests to the list. Use the www >> interface or send it to [email protected]. >> Can't post? Read http://www.gromacs.org/mailing_lists/users.php >> > > -- > Florian Dommert > Dipl.-Phys. > > Institute for Computational Physics > University Stuttgart > > Pfaffenwaldring 27 > 70569 Stuttgart > > Tel: +49 - 711 / 6856-3613 > Fax: +49 - 711 / 6856-3658 > > EMail: [email protected] > Home: > http://www.icp.uni-stuttgart.de/~icp/Florian_Dommert<http://www.icp.uni-stuttgart.de/%7Eicp/Florian_Dommert> > > !! PGP-ENCODED emails preferred !! > > _______________________________________________ > gmx-users mailing list [email protected] > http://lists.gromacs.org/mailman/listinfo/gmx-users > Please search the archive at http://www.gromacs.org/search before posting! > Please don't post (un)subscribe requests to the list. Use the > www interface or send it to [email protected]. > Can't post? Read http://www.gromacs.org/mailing_lists/users.php > -- With Warm Regards Shobhit Kudesia 3rd year Undergraduate Department of Biotechnology IIT Kharagpur
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