[問題] CUDA 光學繞射 error

看板C_and_CPP (C/C++)作者aada (aada)時間16年前 (2009/11/19 05:27)推噓1(1推 0噓 12→)

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大家好, 遇到了些問題想請教各位大大, 我在使用paper所提供的程式碼, 後來在下載他的sample code後有error, 但不知道要從什麼地方改起這是網址,想執行上面所提供的sample code,但一直失敗 You can download the GWO library from http://sourceforge.net/projects/thegwolibrary/ sample code 來源 http://thegwolibrary.sourceforge.net/ The system requirements of the GWO library are as follows: (1) Operating system : Windows XP (2) NVIDIA CUDA version : 2.0 (please download here) (3) NVIDIA GPU (Geforce8800 higher) The installation of the GWO library is as follows: (1) Please place the GWO files (gwo.dll, gwo.h, gwo.lib) on your project directory. (2) Please register gwo.h and gwo.lib to your project. If you have any problem or want to add a new function to the library, please feel free to contact me. %%%%%%%%%%%%%%%%%% SAMPLE CODE %%%%%%%%%%%%%%%%%%%%%% Sample code using the GWO library (1) We show a sample code in order to calculate diffraction. #include "gwo.h" #define WIDTH 1024 #define HEIGHT 1024 #define WIDTH2 (WIDTH*2) #define HEIGHT2 (HEIGHT*2) float gwo_max=0.0, gwo_min=0.0; //gwoComplex is the complex number. //if you use to the real part of gwoComplex, please use GWO_RE(...). //if you use to the imaginary part of gwoComplex, please use GWO_IM(...). gwoComplex ape_small[WIDTH*WIDTH]; gwoComplex ape[WIDTH2*HEIGHT2]; gwoComplex result[WIDTH*HEIGHT]; unsigned char pix[WIDTH*WIDTH]; void main() { //Prepare an aperture with 20*20 pixel. for(int i=0;i<HEIGHT;i++) { for(int j=0;j<WIDTH;j++) { if(j>WIDTH/2-10 && j<WIDTH/2+10 && >HEIGHT/2-10 && i<HEIGHT/2+10) { GWO_RE(ape_small[(j)+(i)*WIDTH])=1.0; GWO_IM(ape_small[(j)+(i)*WIDTH])=0.0; } } } //Initialize the library. gwoInit(GWO_ANGULAR,WIDTH2,HEIGHT2); //if you calculate the Angular spectrum //gwoInit(GWO_FRESNEL_CONV,WIDTH2,HEIGHT2);//if you calculate the Fresnel difraction(convolution type) //gwoInit(GWO_SHIFTED_FRESNEL,WIDTH2,HEIGHT2);////if you calculate the Shifted-Fresnel difraction //Expands the original aperture (ape_small). //The expanded aperture (ape) has double size as compared with the original aperture. gwoHostExpandC2C( ape_small,WIDTH,HEIGHT, ape,WIDTH2,HEIGHT2); //Set the sampling spacing (4.65 um) on the aperture and the diffracted plane. gwoSetPitch(4.65e-6, 4.65e-6); //Set the wavelength (633nm). gwoSetWaveLength(633.0e-9); //Send the expanded aperture to the GPU. gwoSendData(ape); //Calculate the diffraction with the propagation distance of 0.2m. gwoCalc(0.2); //If you need the light intensity of the diffracted light, //please execute gwoIntensity(). //If you do not need the light intensity, //please comment out gwoIntensity(); gwoIntensity(); //The host computer receives the calculated result (the diffracted result). gwoReceiveResult(ape); //Reduce the expanded aperture (ape) to the buffer (result). gwoHostExpandC2C( ape,WIDTH2,HEIGHT2, result,WIDTH,HEIGHT); //Search the maximum and minimum value in the buffer (result). gwoHostSearchMaxMin(result,&gwo_max,&gwo_min,WIDTH,HEIGHT); //Convert the light intensity to 256 monochrome image. for(int i=0;i<HEIGHT;i++) { for(int j=0;j<WIDTH;j++) { float tmp=GWO_RE(result[j+i*WIDTH]); unsigned char c=(unsigned char)(255.0*(tmp-gwo_min)/gwo_max)); pix[j+i*WIDTH]=c; } } //Finalize the library. gwoFree(); } -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.122.193.103