MatCreateFFT#
Creates a matrix object that provides FFT via an external package
Synopsis#
#include "petscmat.h" 
PetscErrorCode MatCreateFFT(MPI_Comm comm, PetscInt ndim, const PetscInt dim[], MatType mattype, Mat *A)
Collective
Input Parameters#
- comm - MPI communicator 
- ndim - the ndim-dimensional transform 
- dim - array of size ndim, dim[i] contains the vector length in the i-dimension 
- mattype - package type, e.g., - MATFFTWor- MATSEQCUFFT
Output Parameter#
- A - the matrix 
Options Database Key#
- -mat_fft_type - set FFT type fft or seqcufft 
Note#
This serves as a base class for all FFT matrix classes, currently MATFFTW or MATSEQCUFFT
See Also#
Matrices, Mat, MATFFTW, MATSEQCUFFT, MatCreateVecsFFTW()
Level#
intermediate
Location#
Examples#
src/snes/tutorials/ex7.c
src/snes/tutorials/ex13.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages