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#include "CellCenterFunctor.H"
#include "Utils/TextMsg.H"
#ifdef WARPX_DIM_RZ
# include "WarpX.H"
#endif
#include <ablastr/coarsen/sample.H>
#include <AMReX.H>
#include <AMReX_IntVect.H>
#include <AMReX_MultiFab.H>
CellCenterFunctor::CellCenterFunctor(amrex::MultiFab const * mf_src, int lev,
amrex::IntVect crse_ratio,
bool convertRZmodes2cartesian, int ncomp)
: ComputeDiagFunctor(ncomp, crse_ratio), m_mf_src(mf_src), m_lev(lev),
m_convertRZmodes2cartesian(convertRZmodes2cartesian)
{}
void
CellCenterFunctor::operator()(amrex::MultiFab& mf_dst, int dcomp, const int /*i_buffer*/) const
{
#ifdef WARPX_DIM_RZ
if (m_convertRZmodes2cartesian) {
// In cylindrical geometry, sum real part of all modes of m_mf_src in
// temporary multifab mf_dst_stag, and cell-center it to mf_dst.
WARPX_ALWAYS_ASSERT_WITH_MESSAGE(
nComp()==1,
"The RZ averaging over modes must write into 1 single component");
auto& warpx = WarpX::GetInstance();
amrex::MultiFab mf_dst_stag(m_mf_src->boxArray(), warpx.DistributionMap(m_lev), 1, m_mf_src->nGrowVect());
// Mode 0
amrex::MultiFab::Copy(mf_dst_stag, *m_mf_src, 0, 0, 1, m_mf_src->nGrowVect());
for (int ic=1 ; ic < m_mf_src->nComp() ; ic += 2) {
// All modes > 0
amrex::MultiFab::Add(mf_dst_stag, *m_mf_src, ic, 0, 1, m_mf_src->nGrowVect());
}
ablastr::coarsen::sample::Coarsen( mf_dst, mf_dst_stag, dcomp, 0, nComp(), 0, m_crse_ratio);
} else {
ablastr::coarsen::sample::Coarsen( mf_dst, *m_mf_src, dcomp, 0, nComp(), 0, m_crse_ratio);
}
#else
// In cartesian geometry, coarsen and interpolate from simulation MultiFab, m_mf_src,
// to output diagnostic MultiFab, mf_dst.
ablastr::coarsen::sample::Coarsen(mf_dst, *m_mf_src, dcomp, 0, nComp(), mf_dst.nGrowVect(), m_crse_ratio);
amrex::ignore_unused(m_lev, m_convertRZmodes2cartesian);
#endif
}
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