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//
// Copyright (c) 2017 The Khronos Group Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#ifndef TEST_CONFORMANCE_CLCPP_SUBGROUPS_TEST_SG_BROADCAST_HPP
#define TEST_CONFORMANCE_CLCPP_SUBGROUPS_TEST_SG_BROADCAST_HPP
#include <vector>
#include <limits>
#include <algorithm>
// Common for all OpenCL C++ tests
#include "../common.hpp"
// Common for tests of sub-group functions
#include "common.hpp"
std::string generate_sg_broadcast_kernel_code()
{
return
"#include <opencl_memory>\n"
"#include <opencl_work_item>\n"
"#include <opencl_work_group>\n"
"using namespace cl;\n"
"__kernel void test_sg_broadcast(global_ptr<uint[]> input, global_ptr<uint[]> output)\n"
"{\n"
" ulong tid = get_global_id(0);\n"
" uint result = sub_group_broadcast(input[tid], 0);\n"
" output[tid] = result;\n"
"}\n";
}
int
verify_sg_broadcast(const std::vector<cl_uint> &in, const std::vector<cl_uint> &out, size_t count, size_t wg_size, size_t sg_size)
{
size_t i, j, k;
for (i = 0; i < count; i += wg_size)
{
for (j = 0; j < ((count - i) > wg_size ? wg_size : (count - i)); j+= sg_size)
{
// sub-group broadcast
cl_uint broadcast_result = in[i+j];
// Check if all work-items in sub-group stored correct value
for (k = 0; k < ((wg_size - j) > sg_size ? sg_size : (wg_size - j)); k++)
{
if (broadcast_result != out[i + j + k])
{
log_info(
"sub_group_any %s: Error at %lu: expected = %lu, got = %lu\n",
type_name<cl_uint>().c_str(),
i + j,
static_cast<size_t>(broadcast_result),
static_cast<size_t>(out[i + j + k]));
return -1;
}
}
}
}
return CL_SUCCESS;
}
std::vector<cl_uint> generate_input_sg_broadcast(size_t count, size_t wg_size)
{
std::vector<cl_uint> input(count, cl_uint(0));
size_t j = wg_size;
for(size_t i = 0; i < count; i++)
{
input[i] = static_cast<cl_uint>(j);
j--;
if(j == 0)
{
j = wg_size;
}
}
return input;
}
std::vector<cl_uint> generate_output_sg_broadcast(size_t count, size_t wg_size)
{
(void) wg_size;
return std::vector<cl_uint>(count, cl_uint(1));
}
int sub_group_broadcast(cl_device_id device, cl_context context, cl_command_queue queue, size_t count)
{
cl_mem buffers[2];
cl_program program;
cl_kernel kernel;
size_t wg_size;
size_t sg_max_size;
size_t work_size[] = { 1 };
int err;
// Get kernel source code
std::string code_str = generate_sg_broadcast_kernel_code();
// -----------------------------------------------------------------------------------
// ------------- ONLY FOR OPENCL 22 CONFORMANCE TEST 22 DEVELOPMENT ------------------
// -----------------------------------------------------------------------------------
// Only OpenCL C++ to SPIR-V compilation
#if defined(DEVELOPMENT) && defined(ONLY_SPIRV_COMPILATION)
err = create_opencl_kernel(context, &program, &kernel, code_str, "test_sg_broadcast");
RETURN_ON_ERROR(err)
return err;
// Use OpenCL C kernels instead of OpenCL C++ kernels (test C++ host code)
#elif defined(DEVELOPMENT) && defined(USE_OPENCLC_KERNELS)
log_info("SKIPPED: OpenCL C kernels not provided for this test. Skipping the test.\n");
return CL_SUCCESS;
#else
err = create_opencl_kernel(context, &program, &kernel, code_str, "test_sg_broadcast");
RETURN_ON_ERROR(err)
#endif
// Get max flat workgroup size
err = clGetKernelWorkGroupInfo(kernel, device, CL_KERNEL_WORK_GROUP_SIZE, sizeof(size_t), &wg_size, NULL);
RETURN_ON_CL_ERROR(err, "clGetKernelWorkGroupInfo")
size_t param_value_size = 0;
err = clGetKernelSubGroupInfo(
kernel, device, CL_KERNEL_MAX_SUB_GROUP_SIZE_FOR_NDRANGE,
sizeof(size_t), static_cast<void*>(&wg_size),
sizeof(size_t), static_cast<void*>(&sg_max_size),
&param_value_size
);
RETURN_ON_CL_ERROR(err, "clGetKernelSubGroupInfo")
// Verify size of returned param
if(param_value_size != sizeof(size_t))
{
RETURN_ON_ERROR_MSG(-1,
"Returned size of max sub group size not valid! (Expected %lu, got %lu)\n",
sizeof(size_t),
param_value_size
)
}
// Calculate global work size
size_t flat_work_size = count;
size_t wg_number = static_cast<size_t>(
std::ceil(static_cast<double>(count) / wg_size)
);
flat_work_size = wg_number * wg_size;
work_size[0] = flat_work_size;
std::vector<cl_uint> input = generate_input_sg_broadcast(flat_work_size, wg_size);
std::vector<cl_uint> output = generate_output_sg_broadcast(flat_work_size, wg_size);
buffers[0] = clCreateBuffer(context, CL_MEM_READ_WRITE,
sizeof(cl_uint) * input.size(), NULL, &err);
RETURN_ON_CL_ERROR(err, "clCreateBuffer");
buffers[1] = clCreateBuffer(context, CL_MEM_READ_WRITE,
sizeof(cl_uint) * output.size(), NULL, &err);
RETURN_ON_CL_ERROR(err, "clCreateBuffer");
err = clEnqueueWriteBuffer(
queue, buffers[0], CL_TRUE, 0, sizeof(cl_uint) * input.size(),
static_cast<void *>(input.data()), 0, NULL, NULL
);
RETURN_ON_CL_ERROR(err, "clEnqueueWriteBuffer");
err = clSetKernelArg(kernel, 0, sizeof(buffers[0]), &buffers[0]);
err |= clSetKernelArg(kernel, 1, sizeof(buffers[1]), &buffers[1]);
RETURN_ON_CL_ERROR(err, "clSetKernelArg");
err = clEnqueueNDRangeKernel(queue, kernel, 1, NULL, work_size, &wg_size, 0, NULL, NULL);
RETURN_ON_CL_ERROR(err, "clEnqueueNDRangeKernel");
err = clEnqueueReadBuffer(
queue, buffers[1], CL_TRUE, 0, sizeof(cl_uint) * output.size(),
static_cast<void *>(output.data()), 0, NULL, NULL
);
RETURN_ON_CL_ERROR(err, "clEnqueueReadBuffer");
int result = verify_sg_broadcast( input, output, work_size[0], wg_size, sg_max_size);
RETURN_ON_ERROR_MSG(result, "sub_group_broadcast failed")
log_info("sub_group_broadcast passed\n");
clReleaseMemObject(buffers[0]);
clReleaseMemObject(buffers[1]);
clReleaseKernel(kernel);
clReleaseProgram(program);
return err;
}
AUTO_TEST_CASE(test_sub_group_broadcast)
(cl_device_id device, cl_context context, cl_command_queue queue, int n_elems)
{
int err = CL_SUCCESS;
err = sub_group_broadcast(device, context, queue, n_elems);
CHECK_ERROR(err)
return err;
}
#endif // TEST_CONFORMANCE_CLCPP_SUBGROUPS_TEST_SG_BROADCAST_HPP