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, DM 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 
Note#
This does not currently exist. There is some code in place but apparently unfinished and commented out with #ifdef 0
See Also#
Level#
intermediate
Location#
src/dm/impls/da/usfft/matusfft.c
Index of all DMDA routines
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Index of all manual pages