FFTW-WISDOM(1) fftw FFTW-WISDOM(1) (NAME) fftwf-wisdom - wisdom ( ) (SYNOPSIS) fftwf-wisdom [OPTION]... [SIZE]... (DESCRIPTION) fftwf-wisdom wisdom FFTW () . FFTW . FFTW : http://www.fftw.org FFTW wisdom . FFTW system wisdom /etc/fftw/wisdomf . fftwf-wisdom wisdom . wisdom ( ) : fftwf-wisdom -v -c -o wisdomf ( -t ) wisdomf ( ) /etc/fftw/ . fftwf-wisdom wisdom -o . wisdom /etc/fftw/wisdomf fftwf-wisdom wisdom ( -n ) wisdom wisdom . wisdom ( wisdom -w ) . (SPECIFYING SIZES) (canonical) -c SIZE . SIZE <<->> ( ) . : 'c' ( - complex) 'r' ( - real r2c/c2r) 'k' ( r2r geometry ) . 'i' ( - in place) 'o' ( - out of place) . 'f' ( - forward) 'b' ( - backward) . 'k' geometry . 'x' ( '16x32' ). 'k' "type" FFTW R2HC/HC2R/DHT/REDFT00/.../RODFT11 f/b/h/e00/e01/e10/e11/o00/o01/o10/o11 . 'cif12x13x14' DFT . 'rob65536' ( ) . 'ki10hx20e01' r2r DHT REDFT01 (DCT- III) . (OPTIONS) -h, --help . -V, --version . -v, --verbose (). ( .) wisdom ( ) wisdom -o . -c, --canonical / (canonical) : 2^20 (1048576) . ( 16x16x16) . -t hours, --time-limit=hours hours ( ) wisdom . ( .) 0 . -o file, --output-file=file wisdom file (). -m, --measure; -e, --estimate; -x, --exhaustive fftwf-wisdom FFTW_PATIENT FFTW_MEASURE FFTW_ESTIMATE FFTW_EXHAUSTIVE FFTW . wisdom wisdom ( patient --exhaustive ). -n, --no-system-wisdom wisdom /etc/fftw/wisdomf ( ). -w file, --wisdom-file=file wisdom file ( wisdom -n ). wisdom -w . file <<->> wisdom . -T N, --threads=N N (thread). FFTW thread . (BUGS) fftw@fftw.org . (AUTHORS) Steven G. Johnson Matteo Frigo. Copyright (c) 2003, 2007-14 Matteo Frigo Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology (SEE ALSO) fftw-wisdom-to-conf(1) fftw February, 2003 FFTW-WISDOM(1)