accel.c File Reference

driver routine to carry out force computation More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <mpi.h>
#include "allvars.h"
#include "proto.h"

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Functions
void	compute_accelerations (int mode)

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Detailed Description

driver routine to carry out force computation

Definition in file accel.c.

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Function Documentation

void compute_accelerations (  int  mode  )

This routine computes the accelerations for all active particles. First, the long-range PM force is computed if the TreePM algorithm is used and a "big" PM step is done. Next, the gravitational tree forces are computed. This also constructs the tree, if needed. If gas particles are present, the density-loop for active SPH particles is carried out. This includes an iteration on the correct number of neighbours. Finally, the hydrodynamical forces are added. Definition at line 24 of file accel.c. References All, global_data_all_processes::CPU_Gravity, global_data_all_processes::CPU_Hydro, global_data_all_processes::CPU_PM, global_data_all_processes::CPU_Predict, density(), force_update_hmax(), gravity_forcetest(), gravity_tree(), hydro_force(), long_range_force(), global_data_all_processes::PM_Ti_endstep, second(), ThisTask, global_data_all_processes::Ti_Current, timediff(), global_data_all_processes::TotN_gas, and global_data_all_processes::TypeOfOpeningCriterion. Referenced by run().

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