VecScatterFFTWToPetsc#
Converts MATFFTW output vector to a PETSc vector.
Synopsis#
#include "petscmat.h"
#include "petscvec.h"
PetscErrorCode VecScatterFFTWToPetsc(Mat A, Vec x, Vec y)
Collective
Input Parameters#
A -
MATFFTWmatrixx - FFTW vector
Output Parameter#
y - PETSc vector
Note#
While doing real transform the FFTW output of backward DFT contains extra zeros at the end of last dimension.
VecScatterFFTWToPetsc() removes those extra zeros.
See Also#
Matrices, Mat, VecScatterPetscToFFTW(), MATFFTW, MatCreateVecsFFTW()
Level#
intermediate
Location#
Implementations#
VecScatterFFTWToPetsc_FFTW() in src/mat/impls/fft/fftw/fftw.c
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