#include "petscmat.h" #include "petscdmda.h" PetscErrorCode MatCreateSeqUSFFT(Vec sampleCoords, DMDA freqDA, Mat *A)Collective on MPI_Comm
| da | - geometry of the domain encoded by a DMDA | |
| A | - the matrix |
| -mat_usfft_plannerflags | - set the FFTW planner flags |