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#include "pocl_opencl.h"
#define CL_HPP_ENABLE_EXCEPTIONS
#include <CL/opencl.hpp>
#include <cassert>
#include <iostream>
using namespace std;
const char *SOURCE = R"RAW(
__kernel void test(global uint *output, global const uint* trialValue){
/* Variable declarations */
int lid = get_local_id(0);
int i, j, k;
uint result[Y][Z];
__local uint localResult[X][Y][Z];
for (i = 0; i < Y; ++i)
for (j = 0; j < Z; ++j) {
result[i][j] = 0;
localResult[lid][i][j] = 0;
}
for (i = 0; i < Y; ++i)
for (j = 0; j < Z; ++j) {
result[i][j] += trialValue[j] * 4;
localResult[lid][i][j] += result[i][j];
}
barrier (CLK_LOCAL_MEM_FENCE);
uint sum = 0;
for (k = 0; k < X; ++k)
for (i = 0; i < Y; ++i)
for (j = 0; j < Z; ++j) {
sum += localResult[k][i][j];
}
output[lid] = sum;
}
)RAW";
bool test_invocation(unsigned x, unsigned y, unsigned z,
const std::string &arg_x, const std::string &arg_y,
const std::string &arg_z, cl::CommandQueue &queue) {
unsigned expected_sum = x * y * z * 4;
unsigned local_size = x;
assert(local_size > 0);
assert(local_size <= 256);
cl::Program program(SOURCE);
std::string options = "-cl-std=CL1.2";
options += " -DX=" + arg_x + " -DY=" + arg_y + " -DZ=" + arg_z;
program.build(options.c_str());
cl_uint *in1 = new cl_uint[z];
cl_uint *out = new cl_uint[x];
for (size_t i = 0; i < x; ++i) {
out[i] = 0;
}
for (size_t i = 0; i < z; ++i) {
in1[i] = 1;
}
cl::Buffer inbuf((cl_mem_flags)(CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR),
(z * sizeof(cl_uint)), in1);
cl::Buffer outbuf((cl_mem_flags)(CL_MEM_WRITE_ONLY | CL_MEM_USE_HOST_PTR),
(x * sizeof(cl_uint)), out);
// This triggers compilation of dynamic WG binaries.
cl::Program::Binaries binaries{};
int err = program.getInfo<>(CL_PROGRAM_BINARIES, &binaries);
assert(err == CL_SUCCESS);
auto kernel = cl::KernelFunctor<cl::Buffer, cl::Buffer>(program, "test");
kernel(
cl::EnqueueArgs(queue, cl::NDRange(local_size), cl::NDRange(local_size)),
outbuf, inbuf);
queue.enqueueReadBuffer(outbuf, 1, 0, (x * sizeof(cl_uint)), out);
queue.finish();
bool correct = true;
for (size_t i = 0; i < x; ++i) {
if (out[i] != expected_sum) {
std::cout << "out[" << i << "] == " << out[i] << " is not "
<< expected_sum << std::endl;
correct = false;
}
}
std::cout << (correct ? "OK\n" : "FAIL\n");
delete[] in1;
delete[] out;
return correct;
}
int main(int argc, char *argv[]) {
if (argc < 4) {
std::cout << "USAGE: $0 X Y Z\n";
return EXIT_FAILURE;
}
cl::Platform platform = cl::Platform::getDefault();
cl::Device device = cl::Device::getDefault();
std::string arg_x(argv[1]);
std::string arg_y(argv[2]);
std::string arg_z(argv[3]);
unsigned x = std::stoi(argv[1]);
unsigned y = std::stoi(argv[2]);
unsigned z = std::stoi(argv[3]);
try {
cl::CommandQueue queue = cl::CommandQueue::getDefault();
if (!test_invocation(x, y, z, arg_x, arg_y, arg_z, queue))
return EXIT_FAILURE;
if (!test_invocation(y, z, x, arg_y, arg_z, arg_x, queue))
return EXIT_FAILURE;
if (!test_invocation(z, x, y, arg_z, arg_x, arg_y, queue))
return EXIT_FAILURE;
} catch (cl::Error &err) {
std::cerr << "ERROR: " << err.what() << "(" << err.err() << ")"
<< std::endl;
return EXIT_FAILURE;
}
platform.unloadCompiler();
return EXIT_SUCCESS;
}
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