krukar@pprg.unm.edu (Richard Krukar [CHTM]) (08/29/90)
Archive-name: fast-fourier-transforms/28-Aug-90 Original-posting-by: krukar@pprg.unm.edu (Richard Krukar [CHTM]) Original-subject: FFTs in C available Archive-site: pprg.unm.edu [129.24.13.10] Archive-directory: /pub/misc Reposted-by: emv@math.lsa.umich.edu (Edward Vielmetti) There is now a set of fft routines, written in C, available for anonymous ftp from pprg.unm.edu ( 129.24.13.10 ). Log in as 'anonymous' and supply username@hostname as passwd. Actually, any string with an embedded @ will work as passwd. You want pub/misc/ffts.tar.Z so don't forget to go into binary mode. There are some rather long subroutines due to loop unrolling and a large weight table, but there is a significant speed improvement over the IEEE standard routines written in Fortran. I am quite interested in how these things do on different platforms, so mail me your 'constructive critism.' Richard Krukar (krukar@pprg.unm.edu)