Description

Holds pointers to kinematic quantities of the granular system. These pointers must be in device-accessible memory.

#include <ChGranular.h>

Public Attributes
int *	sphere_local_pos_X
	X position relative to owner subdomain in unified memory.

int *	sphere_local_pos_Y
	Y position relative to owner subdomain in unified memory.

int *	sphere_local_pos_Z
	Z position relative to owner subdomain in unified memory.

float *	pos_X_dt
	X velocity in unified memory.

float *	pos_Y_dt
	Y velocity in unified memory.

float *	pos_Z_dt
	Z velocity in unified memory.

float *	sphere_Omega_X
	X angular velocity in unified memory. Only used if friction is present.

float *	sphere_Omega_Y
	Y angular velocity in unified memory. Only used if friction is present.

float *	sphere_Omega_Z
	Z angular velocity in unified memory. Only used if friction is present.

float *	sphere_acc_X
	X angular acceleration in unified memory.

float *	sphere_acc_Y
	Y angular acceleration in unified memory.

float *	sphere_acc_Z
	Z angular acceleration in unified memory.

float *	sphere_ang_acc_X
	X angular acceleration in unified memory.

float *	sphere_ang_acc_Y
	Y angular acceleration in unified memory.

float *	sphere_ang_acc_Z
	Z angular acceleration in unified memory.

float *	sphere_acc_X_old
	Previous step X acceleration for multistep integrators.

float *	sphere_acc_Y_old
	Previous step Y acceleration for multistep integrators.

float *	sphere_acc_Z_old
	Previous step Z acceleration for multistep integrators.

float *	sphere_ang_acc_X_old
	Previous step X angular acceleration for multistep integrators.

float *	sphere_ang_acc_Y_old
	Previous step Y angular acceleration for multistep integrators.

float *	sphere_ang_acc_Z_old
	Previous step Z angular acceleration for multistep integrators.

not_stupid_bool *	sphere_fixed
	Fixity of each sphere.

unsigned int *	contact_partners_map
	Set of contact partners for each sphere. Only used in frictional simulations.

not_stupid_bool *	contact_active_map
	Whether the frictional contact at an index is active.

float3 *	contact_history_map
	Tracks the tangential history vector for a given contact pair. Only used in multistep friction.

float3 *	normal_contact_force

float3 *	rolling_friction_torque

float3 *	tangential_friction_force

unsigned int *	SD_NumSpheresTouching
	Number of particles touching each subdomain.

unsigned int *	SD_SphereCompositeOffsets
	Offset of each subdomain in the big composite array.

unsigned int *	spheres_in_SD_composite
	Big composite array of sphere-subdomain membership.

unsigned int *	sphere_owner_SDs
	List of owner subdomains for each sphere.

The documentation for this struct was generated from the following file:

/builds/uwsbel/chrono/src/chrono_granular/physics/ChGranular.h

Description

Public Attributes