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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.
//
#include "harness/compat.h"
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "procs.h"
const char *wg_any_kernel_code =
"__kernel void test_wg_any(global float *input, global int *output)\n"
"{\n"
" int tid = get_global_id(0);\n"
"\n"
" int result = work_group_any((input[tid] > input[tid+1]));\n"
" output[tid] = result;\n"
"}\n";
static int
verify_wg_any(float *inptr, int *outptr, size_t n, size_t wg_size)
{
size_t i, j;
for (i=0; i<n; i+=wg_size)
{
int predicate_any = 0x0;
for (j=0; j<((n-i) > wg_size ? wg_size : (n-i)); j++)
{
if (inptr[i+j] > inptr[i+j+1])
{
predicate_any = 0xFFFFFFFF;
break;
}
}
for (j=0; j<((n-i) > wg_size ? wg_size : (n-i)); j++)
{
if ( (predicate_any && (outptr[i+j] == 0)) ||
((predicate_any == 0) && outptr[i+j]) )
{
log_info("work_group_any: Error at %lu: expected = %d, got = %d\n", i+j, predicate_any, outptr[i+j]);
return -1;
}
}
}
return 0;
}
int
test_work_group_any(cl_device_id device, cl_context context, cl_command_queue queue, int n_elems)
{
cl_mem streams[2];
cl_float *input_ptr[1], *p;
cl_int *output_ptr;
cl_program program;
cl_kernel kernel;
size_t threads[1];
size_t wg_size[1];
size_t num_elements;
int err;
MTdata d;
err = create_single_kernel_helper(context, &program, &kernel, 1,
&wg_any_kernel_code, "test_wg_any");
if (err)
return -1;
// "wg_size" is limited to that of the first dimension as only a 1DRange is executed.
err = get_max_allowed_1d_work_group_size_on_device(device, kernel, wg_size);
test_error(err, "get_max_allowed_1d_work_group_size_on_device failed");
num_elements = n_elems;
input_ptr[0] = (cl_float*)malloc(sizeof(cl_float) * (num_elements+1));
output_ptr = (cl_int*)malloc(sizeof(cl_int) * (num_elements+1));
streams[0] =
clCreateBuffer(context, CL_MEM_READ_WRITE,
sizeof(cl_float) * (num_elements + 1), NULL, NULL);
if (!streams[0])
{
log_error("clCreateBuffer failed\n");
return -1;
}
streams[1] = clCreateBuffer(context, CL_MEM_READ_WRITE,
sizeof(cl_int) * num_elements, NULL, NULL);
if (!streams[1])
{
log_error("clCreateBuffer failed\n");
return -1;
}
p = input_ptr[0];
d = init_genrand( gRandomSeed );
for (size_t i = 0; i < (num_elements + 1); i++)
{
p[i] = get_random_float((float)(-100000.f * M_PI), (float)(100000.f * M_PI) ,d);
}
free_mtdata(d); d = NULL;
err = clEnqueueWriteBuffer( queue, streams[0], true, 0, sizeof(cl_float)*(num_elements+1), (void *)input_ptr[0], 0, NULL, NULL );
if (err != CL_SUCCESS)
{
log_error("clWriteArray failed\n");
return -1;
}
err = clSetKernelArg(kernel, 0, sizeof streams[0], &streams[0] );
err |= clSetKernelArg(kernel, 1, sizeof streams[1], &streams[1] );
if (err != CL_SUCCESS)
{
log_error("clSetKernelArgs failed\n");
return -1;
}
// Line below is troublesome...
threads[0] = (size_t)n_elems;
err = clEnqueueNDRangeKernel( queue, kernel, 1, NULL, threads, wg_size, 0, NULL, NULL );
if (err != CL_SUCCESS)
{
log_error("clEnqueueNDRangeKernel failed\n");
return -1;
}
cl_uint dead = 0xdeaddead;
memset_pattern4(output_ptr, &dead, sizeof(cl_float)*num_elements);
err = clEnqueueReadBuffer( queue, streams[1], true, 0, sizeof(cl_int)*num_elements, (void *)output_ptr, 0, NULL, NULL );
if (err != CL_SUCCESS)
{
log_error("clEnqueueReadBuffer failed\n");
return -1;
}
if (verify_wg_any(input_ptr[0], output_ptr, num_elements, wg_size[0]))
{
log_error("work_group_any test failed\n");
return -1;
}
log_info("work_group_any test passed\n");
clReleaseMemObject(streams[0]);
clReleaseMemObject(streams[1]);
clReleaseKernel(kernel);
clReleaseProgram(program);
free(input_ptr[0]);
free(output_ptr);
return err;
}
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