petsc-3.5.1 2014-07-24
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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 on MPI_Comm

Input Parameter

Output Parameter

Options Database Keys

da - geometry of the domain encoded by a DMDA
A - the matrix

Level:intermediate
Location:
src/dm/impls/da/usfft/matusfft.c
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages

-mat_usfft_plannerflags - set the FFTW planner flags