You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
74 lines
1.9 KiB
74 lines
1.9 KiB
#include <iostream>
|
|
#include <iomanip>
|
|
#include "Common.h"
|
|
#include "Tests.h"
|
|
#include <random>
|
|
#include <stdlib.h>
|
|
|
|
ReduceAdd::ReduceAdd(size_t max_size)
|
|
{
|
|
data_size = max_size;
|
|
cpuResult = 0.0f;
|
|
const float vmax = 1000.0f;
|
|
std::random_device rd;
|
|
std::mt19937 gen(rd());
|
|
std::uniform_real_distribution<float> distr(0.0f, vmax);
|
|
|
|
for (size_t index = 0; index < data_size; ++index)
|
|
{
|
|
float val = distr(gen);
|
|
gpuResult.push_back(val);
|
|
sourceData.push_back(val);
|
|
}
|
|
}
|
|
|
|
void ReduceAdd::gpu_compute(cl::Context* context, cl::CommandQueue* queue, cl::Program* program, cl::Event* Event)
|
|
{
|
|
cl_int err = CL_SUCCESS;
|
|
cl::Kernel kernel = cl::Kernel(*program, "reduce_global", &err);
|
|
CheckCLError(err);
|
|
|
|
clInputBuffer = cl::Buffer(*context, CL_MEM_READ_ONLY, sizeof(int) * data_size, NULL, &err);
|
|
CheckCLError(err);
|
|
queue->enqueueWriteBuffer(clInputBuffer, true, 0, sizeof(int) * data_size, gpuResult.data());
|
|
|
|
kernel.setArg(0, clInputBuffer);
|
|
|
|
queue->enqueueNDRangeKernel(kernel,
|
|
cl::NullRange, // Indexek nem eloffszetelve
|
|
cl::NDRange(data_size, 1), // Minden elemet egy szál
|
|
cl::NDRange(1024, 1), // Workgroup méret? - ez az auto, ha nem indul, 1024-re, onnan csökkent, amig elindul
|
|
NULL, //
|
|
Event);
|
|
}
|
|
|
|
void ReduceAdd::cpu_compute()
|
|
{
|
|
cpuResult = 0;
|
|
for (size_t index = 0; index < data_size; ++index) {
|
|
cpuResult += sourceData[index];
|
|
}
|
|
}
|
|
|
|
void ReduceAdd::collect_results(cl::CommandQueue* queue)
|
|
{
|
|
queue->enqueueReadBuffer(clInputBuffer, true, 0, sizeof(int) * data_size, gpuResult.data());
|
|
}
|
|
|
|
bool ReduceAdd::validate_results()
|
|
{
|
|
float diff = abs(cpuResult - gpuResult[0]);
|
|
if (diff < 0.3f) {
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
std::cout << "Wrong result: " << cpuResult << "!=" << gpuResult[0] << ", diff is " <<diff << std::endl;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
std::string ReduceAdd::description()
|
|
{
|
|
return std::string("ReduceAdd (data_size=" + std::to_string(data_size) + ")");
|
|
}
|
|
|