C++ 代码实现高性能异构实时数据处理系统
数据采集模块
使用CPU从传感器或网络获取实时数据。
#include <iostream>
#include <vector>
#include <thread>
#include <chrono>
// 模拟实时数据采集
void dataAcquisition(std::vector<float>& data, bool& stopFlag) {
while (!stopFlag) {
// 模拟采集新数据
data.push_back(static_cast<float>(rand()) / RAND_MAX);
std::this_thread::sleep_for(std::chrono::milliseconds(100)); // 模拟100ms采样间隔
}
}
int main() {
std::vector<float> data;
bool stopFlag = false;
std::thread acquisitionThread(dataAcquisition, std::ref(data), std::ref(stopFlag));
// 模拟运行一段时间后停止采集
std::this_thread::sleep_for(std::chrono::seconds(10));
stopFlag = true;
acquisitionThread.join();
std::cout << "Data acquisition stopped. Total samples: " << data.size() << std::endl;
return 0;
}
数据预处理模块
使用CPU/GPU对数据进行预处理(如数据清洗、过滤等)。
#include <iostream>
#include <vector>
#include <algorithm>
// 数据预处理函数
void dataPreprocessing(std::vector<float>& data) {
// 简单预处理:去除低于0.2的值
data.erase(std::remove_if(data.begin(), data.end(), [](float value) { return value < 0.2f; }), data.end());
}
int main() {
std::vector<float> data = {0.1f, 0.5f, 0.3f, 0.2f, 0.8f};
std::cout << "Data before preprocessing: ";
for (const auto& val : data) {
std::cout << val << " ";
}
std::cout << std::endl;
dataPreprocessing(data);
std::cout << "Data after preprocessing: ";
for (const auto& val : data) {
std::cout << val << " ";
}
std::cout << std::endl;
return 0;
}
数据分析模块
使用GPU进行高性能计算分析(如实时统计、机器学习推理等)。
#include <iostream>
#include <vector>
#include <cuda_runtime.h>
__global__ void analyzeData(const float* data, float* results, int n) {
int idx = blockIdx.x * blockDim.x + threadIdx.x;
if (idx < n) {
results[idx] = data[idx] * data[idx]; // 简单分析:计算平方
}
}
int main() {
std::vector<float> data = {0.5f, 0.3f, 0.8f, 0.7f, 0.2f};
int n = data.size();
float* d_data;
float* d_results;
cudaMalloc((void**)&d_data, n * sizeof(float));
cudaMalloc((void**)&d_results, n * sizeof(float));
cudaMemcpy(d_data, data.data(), n * sizeof(float), cudaMemcpyHostToDevice);
int blockSize = 256;
int numBlocks = (n + blockSize - 1) / blockSize;
analyzeData<<<numBlocks, blockSize>>>(d_data, d_results, n);
std::vector<float> results(n);
cudaMemcpy(results.data(), d_results, n * sizeof(float), cudaMemcpyDeviceToHost);
cudaFree(d_data);
cudaFree(d_results);
std::cout << "Results after analysis: ";
for (const auto& val : results) {
std::cout << val << " ";
}
std::cout << std::endl;
return 0;
}
数据可视化模块
使用CPU/GPU进行数据可视化。
#include <iostream>
#include <vector>
#include <SFML/Graphics.hpp>
// 数据可视化函数
void dataVisualization(const std::vector<float>& data) {
sf::RenderWindow window(sf::VideoMode(800, 600), "Data Visualization");
while (window.isOpen()) {
sf::Event event;
while (window.pollEvent(event)) {
if (event.type == sf::Event::Closed)
window.close();
}
window.clear();
sf::VertexArray points(sf::Points, data.size());
for (size_t i = 0; i < data.size(); ++i) {
points[i].position = sf::Vector2f(static_cast<float>(i) * 10, 300 - data[i] * 100);
points[i].color = sf::Color::Green;
}
window.draw(points);
window.display();
}
}
int main() {
std::vector<float> data = {0.5f, 0.3f, 0.8f, 0.7f, 0.2f};
dataVisualization(data);
return 0;
}
总结
通过将系统划分为数据采集、数据预处理、数据分析和数据可视化四个模块,并分别利用CPU和GPU来实现不同模块的功能,可以构建一个高性能异构实时数据处理系统。这种系统架构能够充分利用CPU和GPU的优势,实现高效的数据处理和分析。
Python 代码实现高性能异构实时数据处理系统
数据采集模块
使用CPU从传感器或网络获取实时数据。
import threading
import time
import random
class DataAcquisition:
def __init__(self):
self.data = []
self.stop_flag = False
self.lock = threading.Lock()
def acquire_data(self):
while not self.stop_flag:
with self.lock:
self.data.append(random.random())
time.sleep(0.1) # 模拟100ms采样间隔
def start(self):
self.thread = threading.Thread(target=self.acquire_data)
self.thread.start()
def stop(self):
self.stop_flag = True
self.thread.join()
def get_data(self):
with self.lock:
return list(self.data)
if __name__ == "__main__":
acquisition = DataAcquisition()
acquisition.start()
time.sleep(10) # 模拟运行10秒
acquisition.stop()
data = acquisition.get_data()
print(f"Data acquisition stopped. Total samples: {len(data)}")
数据预处理模块
使用CPU/GPU对数据进行预处理(如数据清洗、过滤等)。
import numpy as np
class DataPreprocessing:
def preprocess(self, data):
data = np.array(data)
return data[data >= 0.2]
if __name__ == "__main__":
data = [0.1, 0.5, 0.3, 0.2, 0.8]
preprocessing = DataPreprocessing()
processed_data = preprocessing.preprocess(data)
print(f"Data after preprocessing: {processed_data}")
数据分析模块
使用GPU进行高性能计算分析(如实时统计、机器学习推理等)。
import numpy as np
class DataAnalysis:
def analyze(self, data):
data = np.array(data)
return data ** 2 # 简单分析:计算平方
if __name__ == "__main__":
data = [0.5, 0.3, 0.8, 0.7, 0.2]
analysis = DataAnalysis()
analyzed_data = analysis.analyze(data)
print(f"Results after analysis: {analyzed_data}")
数据可视化模块
使用CPU/GPU进行数据可视化。
import matplotlib.pyplot as plt
class DataVisualization:
def visualize(self, data):
plt.plot(data, 'g.-')
plt.xlabel('Sample Index')
plt.ylabel('Value')
plt.title('Data Visualization')
plt.show()
if __name__ == "__main__":
data = [0.5, 0.3, 0.8, 0.7, 0.2]
visualization = DataVisualization()
visualization.visualize(data)
集成系统
最后,将所有模块集成在一起,实现一个完整的高性能异构实时数据处理系统。
import threading
import time
import random
import numpy as np
import matplotlib.pyplot as plt
class DataAcquisition:
def __init__(self):
self.data = []
self.stop_flag = False
self.lock = threading.Lock()
def acquire_data(self):
while not self.stop_flag:
with self.lock:
self.data.append(random.random())
time.sleep(0.1) # 模拟100ms采样间隔
def start(self):
self.thread = threading.Thread(target=self.acquire_data)
self.thread.start()
def stop(self):
self.stop_flag = True
self.thread.join()
def get_data(self):
with self.lock:
return list(self.data)
class DataPreprocessing:
def preprocess(self, data):
data = np.array(data)
return data[data >= 0.2]
class DataAnalysis:
def analyze(self, data):
data = np.array(data)
return data ** 2 # 简单分析:计算平方
class DataVisualization:
def visualize(self, data):
plt.plot(data, 'g.-')
plt.xlabel('Sample Index')
plt.ylabel('Value')
plt.title('Data Visualization')
plt.show()
if __name__ == "__main__":
acquisition = DataAcquisition()
preprocessing = DataPreprocessing()
analysis = DataAnalysis()
visualization = DataVisualization()
acquisition.start()
time.sleep(10) # 模拟运行10秒
acquisition.stop()
raw_data = acquisition.get_data()
print(f"Data acquisition stopped. Total samples: {len(raw_data)}")
processed_data = preprocessing.preprocess(raw_data)
analyzed_data = analysis.analyze(processed_data)
visualization.visualize(analyzed_data)
这个Python示例展示了一个完整的高性能异构实时数据处理系统,包括数据采集、预处理、分析和可视化模块。各模块之间通过共享的数据列表进行通信和数据处理。