LinkList.cl.in File Reference

LinkList OpenCL methods. (See Aqua::CalcServer::LinkList for details) More...

Functions
__kernel void	iHoc (__global unsigned int *ihoc, unsigned int N, uivec4 n_cells)
__kernel void	iCell (__global unsigned int *icell, __global vec *r, unsigned int N, unsigned int n_radix, vec r_min, float support, float h, uivec4 n_cells)
__kernel void	linkList (__global unsigned int *icell, __global unsigned int *ihoc, unsigned int N)

Detailed Description

LinkList OpenCL methods. (See Aqua::CalcServer::LinkList for details)

Note

The header CalcServer/LinkList.hcl.in is automatically appended.

Function Documentation

iCell()

__kernel void iCell	(	__global unsigned int *	icell,
		__global vec *	r,
		unsigned int	N,
		unsigned int	n_radix,
		vec	r_min,
		float	support,
		float	h,
		uivec4	n_cells
	)

Compute the cell where each particle is allocated.

Parameters

icell	Cell where each particle is allocated.
r	Position \( \mathbf{r} \).
N	Number of particles.
n_radix	N if it is a power of 2, the next power of 2 otherwise.
r_min	Minimum of r.
support	Kernel support as a factor of h.
h	Kernel characteristic length.
n_cells	Number of cells at each direction, and the total number of allocated cells.

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iHoc()

__kernel void iHoc	(	__global unsigned int *	ihoc,
		unsigned int	N,
		uivec4	n_cells
	)

Set all the cells as empty (i.e. the head of chain of the cell is a particle that does not exist).

Parameters

ihoc	Head of chain of each cell.
N	Number of particles.
n_cells	Number of cells at each direction, and the total number of allocated cells.

linkList()

__kernel void linkList	(	__global unsigned int *	icell,
		__global unsigned int *	ihoc,
		unsigned int	N
	)

Compute the linklist after the sort of the icell array.

Parameters

icell	Cell where each particle is allocated.
ihoc	Head of chain of each cell.
N	Number of particles.