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simulation.hh
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Sat, Sep 7, 05:26
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R7871 phys-743-exercises
simulation.hh
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#ifndef SIMULATION_HH
#define SIMULATION_HH
/* -------------------------------------------------------------------------- */
#include "double_buffer.hh"
#include "dumpers.hh"
#include "grid.hh"
/* -------------------------------------------------------------------------- */
#include <tuple>
#include <memory>
#include <array>
#include <mpi.h>
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
class
Simulation
{
public
:
Simulation
(
int
m
,
int
n
,
MPI_Comm
communicator
);
/// set the initial conditions, Dirichlet and source term
virtual
void
set_initial_conditions
();
/// perform the simulation
std
::
tuple
<
float
,
int
>
compute
();
/// access the precision
void
set_epsilon
(
float
epsilon
);
float
epsilon
()
const
;
protected
:
/// compute one step and return an error
virtual
float
compute_step
();
/// compute one row
float
compute_row
(
int
i
);
private
:
/// Global problem size
int
m_global_m
,
m_global_n
;
/// Local problem size
int
m_local_m
,
m_local_n
;
/// local offset
int
m_offset_m
,
m_offset_n
;
/// local neighbors
int
m_north_prank
,
m_south_prank
;
/// proc rank
int
m_prank
;
/// communicator size
int
m_psize
;
/// Precision to achieve
float
m_epsilon
;
/// grid spacing
float
m_h_m
;
float
m_h_n
;
/// Grids storage
DoubleBuffer
m_grids
;
/// source term
Grid
m_f
;
/// Dumper to use for outputs
std
::
unique_ptr
<
Dumper
>
m_dumper
;
/// communicator
MPI_Comm
m_communicator
;
/// request for asynchronous communications
std
::
array
<
MPI_Request
,
4
>
m_requests
;
};
#endif
/* SIMULATION_HH */
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