You can use FFTW through petsc interface. Suggest using petsc-dev (see http://www.mcs.anl.gov/petsc/petsc-as/developers/index.html). Examples can be found at petsc-dev/src/mat/examples/tests/ex112.c, ex121.c, ex142.c and ex143.c
Hong On Thu, Mar 31, 2011 at 9:51 PM, khalid ashraf <khalid_eee at yahoo.com> wrote: > Hi, > Could you please suggest what would be the best way to perform forward and > inverse discrete > Fourier ?Transform with PETSC ? > Thanks.
