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 - MATFFTW matrix

• x - 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

src/mat/impls/fft/fftw/fftw.c

Examples

src/snes/tutorials/ex7.c

Implementations

VecScatterFFTWToPetsc_FFTW() in src/mat/impls/fft/fftw/fftw.c

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