tuning.cpp File Reference

#include "tuning.hpp"
#include "cell_system/CellStructure.hpp"
#include "communication.hpp"
#include "errorhandling.hpp"
#include "integrate.hpp"
#include "nonbonded_interactions/nonbonded_interaction_data.hpp"
#include "system/System.hpp"
#include <utils/statistics/RunningAverage.hpp>
#include <boost/mpi/collectives/all_reduce.hpp>
#include <boost/mpi/collectives/broadcast.hpp>
#include <mpi.h>
#include <algorithm>
#include <functional>
#include <string>

Include dependency graph for tuning.cpp:

Go to the source code of this file.

Namespaces
namespace	System

Functions
static void	check_statistics (Utils::Statistics::RunningAverage< double > &acc)
static void	run_full_force_calc (System::System &system, int reuse_forces)
double	benchmark_integration_step (System::System &system, int int_steps)
	Benchmark the integration loop.
static double	time_calc (System::System &system, int int_steps)
	Time the integration.

Function Documentation

benchmark_integration_step()

double benchmark_integration_step	(	System::System &	system,
		int	int_steps
	)

Benchmark the integration loop.

Call System::System::integrate() several times and measure the elapsed time without propagating the system. It therefore doesn't include e.g. Verlet list updates.

Parameters

system	The system to tune.
int_steps	Number of integration steps.

Returns

Average time per integration loop in milliseconds.

Definition at line 73 of file tuning.cpp.

References check_statistics(), comm_cart, INTEG_REUSE_FORCES_CONDITIONALLY, INTEG_REUSE_FORCES_NEVER, run_full_force_calc(), stream, and this_node.

Referenced by TuningAlgorithm::get_mc_time(), and CoulombMMM1D::tune().

check_statistics()

static void check_statistics ( Utils::Statistics::RunningAverage< double > &  acc )

static

Definition at line 56 of file tuning.cpp.

References Utils::Statistics::RunningAverage< Scalar >::avg(), runtimeWarningMsg, Utils::Statistics::RunningAverage< Scalar >::sig(), and stream.

Referenced by benchmark_integration_step().

run_full_force_calc()

static void run_full_force_calc ( System::System &  system, int  reuse_forces  )

static

Definition at line 66 of file tuning.cpp.

References INTEG_ERROR_RUNTIME, and stream.

Referenced by benchmark_integration_step().

time_calc()

static double time_calc ( System::System &  system, int  int_steps  )

static

Time the integration.

This times the integration and propagates the system.

Parameters

system	The system to tune.
int_steps	Number of steps to integrate.

Returns

Time per integration in ms.

Definition at line 106 of file tuning.cpp.

References INTEG_ERROR_RUNTIME, INTEG_REUSE_FORCES_CONDITIONALLY, INTEG_REUSE_FORCES_NEVER, and stream.

Referenced by System::System::tune_verlet_skin().