File: dot_product_opencl_kernels.cl

package info (click to toggle)
starpu-contrib 1.0.1%2Bdfsg-1
  • links: PTS, VCS
  • area: contrib
  • in suites: wheezy
  • size: 13,836 kB
  • sloc: ansic: 77,357; cpp: 23,334; sh: 12,088; makefile: 2,086; lisp: 758; yacc: 185; sed: 126; fortran: 13
file content (40 lines) | stat: -rw-r--r-- 1,082 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
/* StarPU --- Runtime system for heterogeneous multicore architectures.
 *
 * Copyright (C) 2012 inria
 *
 * StarPU is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or (at
 * your option) any later version.
 *
 * StarPU is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * See the GNU Lesser General Public License in COPYING.LGPL for more details.
 */

#include "dot_product.h"

#pragma OPENCL EXTENSION cl_khr_fp64 : enable

__kernel void _redux_opencl(__global DOT_TYPE *dota,
			    __global DOT_TYPE *dotb)
{
        const int i = get_global_id(0);
	*dota += *dotb;
}

__kernel void _dot_opencl(__global float *x,
			  __global float *y,
			  __global DOT_TYPE *dot,
			  unsigned n)
{
	unsigned i;
	__local double tmp;
	tmp = 0.0;
	for (i = 0; i < n ; i++)
		tmp += x[i]*y[i];
		
	*dot += tmp;
}