C++ (Cpp) starpu_opencl_get_current_queue示例

示例#1

文件： increment_redux_v2.c 项目： joao-lima/starpu-1.2.0rc2

static void neutral_opencl_kernel(void *descr[], void *arg)
{
	STARPU_SKIP_IF_VALGRIND;

	unsigned h_dst = 0;
	cl_mem d_dst = (cl_mem)STARPU_VARIABLE_GET_PTR(descr[0]);

	cl_command_queue queue;
	starpu_opencl_get_current_queue(&queue);

	clEnqueueWriteBuffer(queue, d_dst, CL_TRUE, 0, sizeof(unsigned), (void *)&h_dst, 0, NULL, NULL);
}

示例#2

文件： increment_redux_v2.c 项目： joao-lima/starpu-1.2.0rc2

static void redux_opencl_kernel(void *descr[], void *arg)
{
	STARPU_SKIP_IF_VALGRIND;

	unsigned h_dst, h_src;

	cl_mem d_dst = (cl_mem)STARPU_VARIABLE_GET_PTR(descr[0]);
	cl_mem d_src = (cl_mem)STARPU_VARIABLE_GET_PTR(descr[1]);

	cl_command_queue queue;
	starpu_opencl_get_current_queue(&queue);

	/* This is a dummy technique of course */
	clEnqueueReadBuffer(queue, d_dst, CL_TRUE, 0, sizeof(unsigned), (void *)&h_dst, 0, NULL, NULL);
	clEnqueueReadBuffer(queue, d_src, CL_TRUE, 0, sizeof(unsigned), (void *)&h_src, 0, NULL, NULL);

	h_dst += h_src;

	clEnqueueWriteBuffer(queue, d_dst, CL_TRUE, 0, sizeof(unsigned), (void *)&h_dst, 0, NULL, NULL);
}

示例#3

文件： dot_product.c 项目： excess-project/starpu-ex-1.2.0rc5

void init_opencl_func(void *buffers[], void *args)
{
        cl_int err;
	cl_command_queue queue;

	cl_mem dot = (cl_mem) STARPU_VARIABLE_GET_PTR(buffers[0]);
	starpu_opencl_get_current_queue(&queue);
	DOT_TYPE zero = (DOT_TYPE) 0.0;

	err = clEnqueueWriteBuffer(queue,
			dot,
			CL_TRUE,
			0,
			sizeof(DOT_TYPE),
			&zero,
			0,
			NULL,
			NULL);
	if (err != CL_SUCCESS)
		STARPU_OPENCL_REPORT_ERROR(err);

}