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<TITLE>MatCreateSeqUSFFT</TITLE>
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<A NAME="MatCreateSeqUSFFT"><H1>MatCreateSeqUSFFT</H1></A>
Creates a matrix object that provides sequential USFFT via the external package FFTW
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h"
#include "petscdmda.h"
PetscErrorCode MatCreateSeqUSFFT(Vec sampleCoords, DMDA freqDA, Mat* A)
</PRE>
Collective on <A HREF="../Sys/MPI_Comm.html#MPI_Comm">MPI_Comm</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>da </B></TD><TD>- geometry of the domain encoded by a DMDA
</TD></TR>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>A </B></TD><TD>- the matrix
</TD></TR>
<P>
<H3><FONT COLOR="#CC3333">Options Database Keys</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mat_usfft_plannerflags </B></TD><TD>- set the FFTW planner flags
</TD></TR>
<P>
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/dm/da/src/usfft/matusfft.c.html#MatCreateSeqUSFFT">src/dm/da/src/usfft/matusfft.c</A>
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