85 lines
2.8 KiB
Plaintext
85 lines
2.8 KiB
Plaintext
#include "consts.h"
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#include <cuda_runtime.h>
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#include "gui/MainWindow.h"
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#include "hurricanedata/datareader.h"
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#include <iostream>
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#include <vector>
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static float* d_volume = nullptr;
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void getTemperature(std::vector<float>& temperatureData, int idx = 0) {
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std::string path = "data/trimmed";
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// std::string path = "data";
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std::string variable = "T";
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DataReader dataReader(path, variable);
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size_t dataLength = dataReader.fileLength(idx);
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temperatureData.resize(dataLength);
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dataReader.loadFile(temperatureData.data(), idx);
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}
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void getSpeed(std::vector<float>& speedData, int idx = 0) {
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std::string path = "data/trimmed";
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// std::string path = "data";
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std::string varU = "U";
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std::string varV = "V";
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DataReader dataReaderU(path, varU);
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DataReader dataReaderV(path, varV);
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size_t dataLength = dataReaderU.fileLength(idx);
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speedData.resize(dataLength);
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std::vector<float> uData(dataLength);
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std::vector<float> vData(dataLength);
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dataReaderU.loadFile(uData.data(), idx);
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dataReaderV.loadFile(vData.data(), idx);
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for (int i = 0; i < dataLength; i++) {
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speedData[i] = sqrt(uData[i]*uData[i] + vData[i]*vData[i]);
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}
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}
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int main() {
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std::vector<float> data;
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getTemperature(data, 301); // 20121028
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// getSpeed(data, 254); // 20121028
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std::cout << "DATA size: " << data.size() << std::endl;
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// TODO: Eventually, we should not need to load the volume like this
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float* hostVolume = new float[VOLUME_WIDTH * VOLUME_HEIGHT * VOLUME_DEPTH];
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for (int i = 0; i < VOLUME_WIDTH * VOLUME_HEIGHT * VOLUME_DEPTH; i++) {
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hostVolume[i] = data[i + 0*VOLUME_DEPTH*VOLUME_HEIGHT*VOLUME_WIDTH];
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// Discard missing values
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if (data[i + 0*VOLUME_DEPTH*VOLUME_HEIGHT*VOLUME_WIDTH] + epsilon >= infty) hostVolume[i] = -infty;
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}
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// Reverse the order of hostVolume - why is it upside down anyway?
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for (int i = 0; i < VOLUME_WIDTH; i++) {
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for (int j = 0; j < VOLUME_HEIGHT; j++) {
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for (int k = 0; k < VOLUME_DEPTH/2; k++) {
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float temp = hostVolume[i + j*VOLUME_WIDTH + k*VOLUME_WIDTH*VOLUME_HEIGHT];
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hostVolume[i + j*VOLUME_WIDTH + k*VOLUME_WIDTH*VOLUME_HEIGHT] = hostVolume[i + j*VOLUME_WIDTH + (VOLUME_DEPTH - 1 - k)*VOLUME_WIDTH*VOLUME_HEIGHT];
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hostVolume[i + j*VOLUME_WIDTH + (VOLUME_DEPTH - 1 - k)*VOLUME_WIDTH*VOLUME_HEIGHT] = temp;
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}
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}
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}
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// Allocate + copy data to GPU
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size_t volumeSize = sizeof(float) * VOLUME_WIDTH * VOLUME_HEIGHT * VOLUME_DEPTH;
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cudaMalloc((void**)&d_volume, volumeSize);
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cudaMemcpy(d_volume, hostVolume, volumeSize, cudaMemcpyHostToDevice);
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copyConstantsToDevice();
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// Create the GUI
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Window window(INITIAL_WINDOW_WIDTH, INITIAL_WINDOW_HEIGHT);
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int out = window.init(d_volume);
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// memory management
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cudaFree(d_volume);
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delete[] hostVolume;
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return out;
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}
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