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MLEBNodeFDLaplacian: Make it work with AMREX_USE_EB but with no EB (#…
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…4083)

This will allow the use of the linear solver when AMReX is built with EB
support at compile time but no EB is built at runtime.

X-Ref: ECP-WarpX/WarpX#4865
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@WeiqunZhang
WeiqunZhang committed Aug 15, 2024
1 parent 8535675 commit b82296f
Showing 1 changed file with 48 additions and 34 deletions.
82 changes: 48 additions & 34 deletions Src/LinearSolvers/MLMG/AMReX_MLEBNodeFDLaplacian.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
#include <AMReX_MultiFabUtil.H>

#ifdef AMREX_USE_EB
#include <AMReX_EB2.H>
#include <AMReX_EBMultiFabUtil.H>
#endif

Expand Down Expand Up @@ -151,10 +152,14 @@ MLEBNodeFDLaplacian::define (const Vector<Geometry>& a_geom,
std::unique_ptr<FabFactory<FArrayBox> >
MLEBNodeFDLaplacian::makeFactory (int amrlev, int mglev) const
{
return makeEBFabFactory(m_geom[amrlev][mglev],
m_grids[amrlev][mglev],
m_dmap[amrlev][mglev],
{1,1,1}, EBSupport::full);
if (EB2::TopIndexSpaceIfPresent()) {
return makeEBFabFactory(m_geom[amrlev][mglev],
m_grids[amrlev][mglev],
m_dmap[amrlev][mglev],
{1,1,1}, EBSupport::full);
} else {
return MLNodeLinOp::makeFactory(amrlev, mglev);
}
}
#endif

Expand Down Expand Up @@ -264,17 +269,19 @@ MLEBNodeFDLaplacian::prepareForSolve ()
for (int amrlev = 0; amrlev < m_num_amr_levels; ++amrlev) {
for (int mglev = 0; mglev < m_num_mg_levels[amrlev]; ++mglev) {
const auto *factory = dynamic_cast<EBFArrayBoxFactory const*>(m_factory[amrlev][mglev].get());
auto const& levset_mf = factory->getLevelSet();
auto const& levset_ar = levset_mf.const_arrays();
auto& dmask_mf = *m_dirichlet_mask[amrlev][mglev];
auto const& dmask_ar = dmask_mf.arrays();
amrex::ParallelFor(dmask_mf,
[=] AMREX_GPU_DEVICE (int box_no, int i, int j, int k) noexcept
{
if (levset_ar[box_no](i,j,k) >= Real(0.0)) {
dmask_ar[box_no](i,j,k) = -1;
}
});
if (factory) {
auto const& levset_mf = factory->getLevelSet();
auto const& levset_ar = levset_mf.const_arrays();
auto& dmask_mf = *m_dirichlet_mask[amrlev][mglev];
auto const& dmask_ar = dmask_mf.arrays();
amrex::ParallelFor(dmask_mf,
[=] AMREX_GPU_DEVICE (int box_no, int i, int j, int k) noexcept
{
if (levset_ar[box_no](i,j,k) >= Real(0.0)) {
dmask_ar[box_no](i,j,k) = -1;
}
});
}
}
}
#endif
Expand Down Expand Up @@ -359,8 +366,10 @@ MLEBNodeFDLaplacian::prepareForSolve ()
void
MLEBNodeFDLaplacian::scaleRHS (int amrlev, MultiFab& rhs) const
{
auto const& dmask = *m_dirichlet_mask[amrlev][0];
const auto *factory = dynamic_cast<EBFArrayBoxFactory const*>(m_factory[amrlev][0].get());
if (!factory) { return; }

auto const& dmask = *m_dirichlet_mask[amrlev][0];
auto const& edgecent = factory->getEdgeCent();

#ifdef AMREX_USE_OMP
Expand Down Expand Up @@ -407,9 +416,10 @@ MLEBNodeFDLaplacian::Fapply (int amrlev, int mglev, MultiFab& out, const MultiFa
#ifdef AMREX_USE_EB
const auto phieb = (m_in_solution_mode) ? m_s_phi_eb : Real(0.0);
const auto *factory = dynamic_cast<EBFArrayBoxFactory const*>(m_factory[amrlev][mglev].get());
auto const& edgecent = factory->getEdgeCent();
auto const& levset_mf = factory->getLevelSet();
auto const& volfrac = factory->getVolFrac();
Array<const MultiCutFab*,AMREX_SPACEDIM> edgecent {AMREX_D_DECL(nullptr,nullptr,nullptr)};
if (factory) {
edgecent = factory->getEdgeCent();
}
#endif

#ifdef AMREX_USE_OMP
Expand All @@ -422,12 +432,12 @@ MLEBNodeFDLaplacian::Fapply (int amrlev, int mglev, MultiFab& out, const MultiFa
Array4<Real> const& yarr = out.array(mfi);
Array4<int const> const& dmarr = dmask.const_array(mfi);
#ifdef AMREX_USE_EB
bool cutfab = edgecent[0]->ok(mfi);
if (cutfab) {
bool cutfab = edgecent[0] && edgecent[0]->ok(mfi);
if (cutfab && factory) { // clang-tidy is not that smart
AMREX_D_TERM(Array4<Real const> const& ecx = edgecent[0]->const_array(mfi);,
Array4<Real const> const& ecy = edgecent[1]->const_array(mfi);,
Array4<Real const> const& ecz = edgecent[2]->const_array(mfi));
auto const& levset = levset_mf.const_array(mfi);
auto const& levset = factory->getVolFrac().const_array(mfi);
if (phieb == std::numeric_limits<Real>::lowest()) {
auto const& phiebarr = m_phi_eb[amrlev].const_array(mfi);
#if (AMREX_SPACEDIM == 2)
Expand All @@ -441,7 +451,7 @@ MLEBNodeFDLaplacian::Fapply (int amrlev, int mglev, MultiFab& out, const MultiFa
#endif
if (m_has_sigma_mf) {
auto const& sigarr = m_sigma_mf[amrlev][mglev]->const_array(mfi);
auto const& vfrc = volfrac.const_array(mfi);
auto const& vfrc = factory->getVolFrac().const_array(mfi);
AMREX_HOST_DEVICE_FOR_3D(box, i, j, k,
{
mlebndfdlap_sig_adotx_eb(i,j,k,yarr,xarr,levset,dmarr,AMREX_D_DECL(ecx,ecy,ecz),
Expand All @@ -466,7 +476,7 @@ MLEBNodeFDLaplacian::Fapply (int amrlev, int mglev, MultiFab& out, const MultiFa
#endif
if (m_has_sigma_mf) {
auto const& sigarr = m_sigma_mf[amrlev][mglev]->const_array(mfi);
auto const& vfrc = volfrac.const_array(mfi);
auto const& vfrc = factory->getVolFrac().const_array(mfi);
AMREX_HOST_DEVICE_FOR_3D(box, i, j, k,
{
mlebndfdlap_sig_adotx_eb(i,j,k,yarr,xarr,levset,dmarr,AMREX_D_DECL(ecx,ecy,ecz),
Expand Down Expand Up @@ -533,9 +543,10 @@ MLEBNodeFDLaplacian::Fsmooth (int amrlev, int mglev, MultiFab& sol, const MultiF

#ifdef AMREX_USE_EB
const auto *factory = dynamic_cast<EBFArrayBoxFactory const*>(m_factory[amrlev][mglev].get());
auto const& edgecent = factory->getEdgeCent();
auto const& levset_mf = factory->getLevelSet();
auto const& volfrac = factory->getVolFrac();
Array<const MultiCutFab*,AMREX_SPACEDIM> edgecent {AMREX_D_DECL(nullptr,nullptr,nullptr)};
if (factory) {
edgecent = factory->getEdgeCent();
}
#endif

#ifdef AMREX_USE_OMP
Expand All @@ -548,12 +559,12 @@ MLEBNodeFDLaplacian::Fsmooth (int amrlev, int mglev, MultiFab& sol, const MultiF
Array4<Real const> const& rhsarr = rhs.const_array(mfi);
Array4<int const> const& dmskarr = dmask.const_array(mfi);
#ifdef AMREX_USE_EB
bool cutfab = edgecent[0]->ok(mfi);
if (cutfab) {
bool cutfab = edgecent[0] && edgecent[0]->ok(mfi);
if (cutfab && factory) { // clang-tidy is not that smart
AMREX_D_TERM(Array4<Real const> const& ecx = edgecent[0]->const_array(mfi);,
Array4<Real const> const& ecy = edgecent[1]->const_array(mfi);,
Array4<Real const> const& ecz = edgecent[2]->const_array(mfi));
auto const& levset = levset_mf.const_array(mfi);
auto const& levset = factory->getLevelSet().const_array(mfi);
#if (AMREX_SPACEDIM == 2)
if (m_rz) {
AMREX_HOST_DEVICE_FOR_3D(box, i, j, k,
Expand All @@ -565,7 +576,7 @@ MLEBNodeFDLaplacian::Fsmooth (int amrlev, int mglev, MultiFab& sol, const MultiF
#endif
if (m_has_sigma_mf) {
auto const& sigarr = m_sigma_mf[amrlev][mglev]->const_array(mfi);
auto const& vfrc = volfrac.const_array(mfi);
auto const& vfrc = factory->getVolFrac().const_array(mfi);
AMREX_HOST_DEVICE_FOR_3D(box, i, j, k,
{
mlebndfdlap_sig_gsrb_eb(i,j,k,solarr,rhsarr,levset,dmskarr,AMREX_D_DECL(ecx,ecy,ecz),
Expand Down Expand Up @@ -641,8 +652,10 @@ MLEBNodeFDLaplacian::compGrad (int amrlev, const Array<MultiFab*,AMREX_SPACEDIM>
auto const& dmask = *m_dirichlet_mask[amrlev][mglev];
const auto phieb = m_s_phi_eb;
const auto *factory = dynamic_cast<EBFArrayBoxFactory const*>(m_factory[amrlev][mglev].get());
AMREX_ASSERT(factory);
auto const& edgecent = factory->getEdgeCent();
Array<const MultiCutFab*,AMREX_SPACEDIM> edgecent {AMREX_D_DECL(nullptr,nullptr,nullptr)};
if (factory) {
edgecent = factory->getEdgeCent();
}
#endif

#ifdef AMREX_USE_OMP
Expand All @@ -659,7 +672,7 @@ MLEBNodeFDLaplacian::compGrad (int amrlev, const Array<MultiFab*,AMREX_SPACEDIM>
Array4<Real> const& gpz = grad[2]->array(mfi);)
#ifdef AMREX_USE_EB
Array4<int const> const& dmarr = dmask.const_array(mfi);
bool cutfab = edgecent[0]->ok(mfi);
bool cutfab = edgecent[0] && edgecent[0]->ok(mfi);
AMREX_D_TERM(Array4<Real const> const& ecx
= cutfab ? edgecent[0]->const_array(mfi) : Array4<Real const>{};,
Array4<Real const> const& ecy
Expand Down Expand Up @@ -741,6 +754,7 @@ MLEBNodeFDLaplacian::postSolve (Vector<MultiFab>& sol) const
for (int amrlev = 0; amrlev < m_num_amr_levels; ++amrlev) {
const auto phieb = m_s_phi_eb;
const auto *factory = dynamic_cast<EBFArrayBoxFactory const*>(m_factory[amrlev][0].get());
if (!factory) { return; }
auto const& levset_mf = factory->getLevelSet();
auto const& levset_ar = levset_mf.const_arrays();
MultiFab& mf = sol[amrlev];
Expand Down

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