void
solve_with_f90(PArray<MultiFab>& rhs, PArray<MultiFab>& phi,
Array< PArray<MultiFab> >& grad_phi_edge,
const Array<Geometry>& geom, int base_level, int finest_level, Real tol, Real abs_tol)
{
int nlevs = finest_level - base_level + 1;
int mg_bc[2*BL_SPACEDIM];
// This tells the solver that we are using periodic bc's
if (Geometry::isAllPeriodic())
{
for (int dir = 0; dir < BL_SPACEDIM; ++dir)
{
mg_bc[2*dir + 0] = 0;
mg_bc[2*dir + 1] = 0;
}
} else {
BoxLib::Abort("non periodic boundraies not supported here");
}
// Have to do some packing because these arrays does not always start with base_level
PArray<Geometry> geom_p(nlevs);
PArray<MultiFab> rhs_p(nlevs);
PArray<MultiFab> phi_p(nlevs);
for (int ilev = 0; ilev < nlevs; ++ilev) {
geom_p.set(ilev, &geom[ilev+base_level]);
rhs_p.set (ilev, &rhs[ilev+base_level]);
phi_p.set (ilev, &phi[ilev+base_level]);
}
// Refinement ratio is hardwired to 2 here.
IntVect crse_ratio = (base_level == 0) ?
IntVect::TheZeroVector() : IntVect::TheUnitVector() * 2;
FMultiGrid fmg(geom_p, base_level, crse_ratio);
if (base_level == 0) {
fmg.set_bc(mg_bc, phi[base_level]);
} else {
fmg.set_bc(mg_bc, phi[base_level-1], phi[base_level]);
}
fmg.set_const_gravity_coeffs();
int always_use_bnorm = 0;
int need_grad_phi = 1;
fmg.set_verbose(1);
fmg.solve(phi_p, rhs_p, tol, abs_tol, always_use_bnorm, need_grad_phi);
for (int ilev = 0; ilev < nlevs; ++ilev)
{
int amr_level = ilev + base_level;
fmg.get_fluxes(grad_phi_edge[amr_level], ilev);
}
}
std::unique_ptr<spacelib::area> AreaParser::result()
{
GiNaC::parser lhs_p, rhs_p;
if(!m_str.empty())
{
m_lhs = lhs_p(m_str[0].toStdString());
m_rhs = rhs_p(m_str[1].toStdString());
}
// Get all the variables.
std::vector<GiNaC::symbol> syms;
for(const auto& sym : lhs_p.get_syms())
{ syms.push_back(GiNaC::ex_to<GiNaC::symbol>(sym.second)); }
for(const auto& sym : rhs_p.get_syms())
{ syms.push_back(GiNaC::ex_to<GiNaC::symbol>(sym.second)); }
return std::make_unique<spacelib::area>(
GiNaC::relational(m_lhs, m_rhs, m_op),
syms);
}
//==============================================================================
/// Construct a simple scaling factor conversion.
///
/// \param [in] factor The scaling factor.
///
Conversion::AutoPtr Conversion::ScaleFactor( double factor )
{
Conversion::AutoPtr lhs_p( new Constant( factor ) );
Conversion::AutoPtr rhs_p( new Value );
return Conversion::AutoPtr( new MultOp( lhs_p, rhs_p ) );
}