fftw-wisdom tool for FFTW version 3.3.6-pl2. Copyright (c) 2003, 2007-14 Matteo Frigo Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

Usage: fftw-wisdom [options] [sizes] Create wisdom (pre-planned/optimized transforms) for specified sizes, writing wisdom to stdout (or to a file, using -o). Options: -h, --help: print this help -V, --version: print version/copyright info -v, --verbose: verbose output -c, --canonical: plan/optimize canonical set of sizes -t <h>, --time-limit=<h>: time limit in hours (default: 0, no limit) -o FILE, --output-file=FILE: output to FILE instead of stdout -m, --measure: plan in MEASURE mode (PATIENT is default) -e, --estimate: plan in ESTIMATE mode (not recommended) -x, --exhaustive: plan in EXHAUSTIVE mode (may be slow) -n, --no-system-wisdom: don't read /etc/fftw/ system wisdom file -w FILE, --wisdom-file=FILE: read wisdom from FILE (stdin if -) -T N, --threads=N: plan with N threads Size syntax: <type><inplace><direction><geometry> <type> = c/r/k for complex/real(r2c,c2r)/r2r <inplace> = i/o for in/out-of place <direction> = f/b for forward/backward, omitted for k transforms <geometry> = <n1>[x<n2>[x...]], e.g. 10x12x14 -- for k transforms, after each dimension is a <kind>: <kind> = f/b/h/e00/e01/e10/e11/o00/o01/o10/o11 for R2HC/HC2R/DHT/REDFT00/.../RODFT11