assembly_schedule.hh File Reference

#include <deal.II/base/multithread_info.h>
#include <deal.II/distributed/tria_base.h>
#include <deal.II/dofs/dof_handler.h>
#include <deal.II/grid/filtered_iterator.h>
#include <deal.II/grid/tria.h>
#include <DiFfRG/common/config_tree.hh>
#include <DiFfRG/common/threads.hh>
#include <DiFfRG/common/types.hh>
#include <algorithm>
#include <cmath>
#include <optional>

Go to the source code of this file.

Classes
struct	DiFfRG::AssemblySchedule
	The two trailing arguments of dealii::MeshWorker::mesh_loop. More...
struct	DiFfRG::AssemblyScheduleOverrides
	Overrides, if really wanted by the user: /discretization/{mesh_workers,batch_size}. More...

Namespaces
namespace	DiFfRG
namespace	DiFfRG::assembly_cost
	Representative per-cell costs, in nanoseconds, for the loops DiFfRG assembles.
namespace	DiFfRG::assembly_schedule_defaults

Functions
AssemblySchedule	DiFfRG::make_assembly_schedule (const uint n_local_cells, const uint thread_budget, const double cost_ns, const AssemblyScheduleOverrides &overrides={})
	Derive one mesh_loop schedule from the cost of a cell.
template<int dim>
auto	DiFfRG::locally_owned_cells (const dealii::DoFHandler< dim > &dof_handler)
	The cells this rank assembles.
template<typename Discretization >
uint	DiFfRG::n_locally_owned_cells (const Discretization &discretization)
	How many cells locally_owned_cells() yields.

Variables
constexpr double	DiFfRG::assembly_cost::local_fe = 250.
	Local FE work only: mass matrices, refinement indicators. ~0.2-0.3 us/cell for CG p=3.
constexpr double	DiFfRG::assembly_cost::algebraic = 1000.
	Algebraic couplings without momentum quadrature, e.g. LDG's level-to-level transfers.
constexpr double	DiFfRG::assembly_cost::momentum_integral = 3000.
constexpr double	DiFfRG::assembly_schedule_defaults::chunk_work_ns = 8.0e3
constexpr double	DiFfRG::assembly_schedule_defaults::worker_work_ns = 64.0e3
constexpr uint	DiFfRG::assembly_schedule_defaults::chunk_cap = 256