neighbor_cpu.cu
9ee36a3c2298runner

neighbor_cpu.cu
View Options

			// **************************************************************************
			// atom.cu
			// -------------------
			// W. Michael Brown (ORNL)
			//
			// Device code for handling CPU generated neighbor lists
			//
			// __________________________________________________________________________
			// This file is part of the LAMMPS Accelerator Library (LAMMPS_AL)
			// __________________________________________________________________________
			//
			// begin :
			// email : brownw@ornl.gov
			// ***************************************************************************/

			#ifdef NV_KERNEL

			#include "geryon/ucl_nv_kernel.h"

			#else

			#define GLOBAL_ID_X get_global_id(0)

			#endif

			__kernel void kernel_unpack(__global int dev_nbor, __global int dev_ij,
			const int inum) {
			// ii indexes the two interacting particles in gi
			int ii=GLOBAL_ID_X;

			if (ii<inum) {
			__global int *nbor=dev_nbor+ii+inum;
			int numj=*nbor;
			nbor+=inum;
			__global int list=dev_ij+nbor;
			__global int *list_end=list+numj;

			for ( ; list<list_end; list++) {
			nbor=list;
			nbor+=inum;
			}
			} // if ii
			}