MatCreateSeqUSFFT#

Creates a matrix object that provides sequential USFFT via the external package FFTW

Synopsis#

#include "petscmat.h" 
#include "petscdmda.h"  
PetscErrorCode  MatCreateSeqUSFFT(Vec sampleCoords, DMDA freqDA, Mat *A)

Collective

Input Parameter#

  • da - geometry of the domain encoded by a DMDA

Output Parameter#

  • A - the matrix

Options Database Key#

  • -mat_usfft_plannerflags - set the FFTW planner flags

See Also#

Mat, Vec, DMDA, DM

Level#

intermediate

Location#

src/dm/impls/da/usfft/matusfft.c

Index of all DMDA routines
Table of Contents for all manual pages
Index of all manual pages