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/* StarPU --- Runtime system for heterogeneous multicore architectures.
*
* Copyright (C) 2012 Inria
* Copyright (C) 2012,2015-2017 CNRS
* Copyright (C) 2014-2015 Université de Bordeaux
*
* 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.
*/
/* OpenCL codelet for axpy */
#include <starpu.h>
#include "axpy.h"
extern struct starpu_opencl_program opencl_program;
void axpy_opencl(void *buffers[], void *_args)
{
TYPE *alpha = _args;
int id, devid;
cl_int err;
cl_kernel kernel;
cl_command_queue queue;
unsigned n = STARPU_VECTOR_GET_NX(buffers[0]);
cl_mem x = (cl_mem) STARPU_VECTOR_GET_DEV_HANDLE(buffers[0]);
cl_mem y = (cl_mem) STARPU_VECTOR_GET_DEV_HANDLE(buffers[1]);
id = starpu_worker_get_id_check();
devid = starpu_worker_get_devid(id);
err = starpu_opencl_load_kernel(&kernel, &queue, &opencl_program, "_axpy_opencl", devid);
if (err != CL_SUCCESS)
STARPU_OPENCL_REPORT_ERROR(err);
err = clSetKernelArg(kernel, 0, sizeof(x), &x);
err|= clSetKernelArg(kernel, 1, sizeof(y), &y);
err|= clSetKernelArg(kernel, 2, sizeof(n), &n);
err|= clSetKernelArg(kernel, 3, sizeof(*alpha), alpha);
if (err)
STARPU_OPENCL_REPORT_ERROR(err);
{
size_t global=n;
size_t local;
size_t s;
cl_device_id device;
starpu_opencl_get_device(devid, &device);
err = clGetKernelWorkGroupInfo (kernel, device, CL_KERNEL_WORK_GROUP_SIZE, sizeof(local), &local, &s);
if (err != CL_SUCCESS)
STARPU_OPENCL_REPORT_ERROR(err);
if (local > global)
local=global;
err = clEnqueueNDRangeKernel(queue, kernel, 1, NULL, &global, &local, 0, NULL, NULL);
if (err != CL_SUCCESS)
STARPU_OPENCL_REPORT_ERROR(err);
}
starpu_opencl_release_kernel(kernel);
}
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