如何使用OpenACC在C中实现结构的2D动态数组的手动深度复制

typedef struct {
    int rows;
    int cols;
    double** data;
} Array2D;

Array2D createArray2D(int rows, int cols) {
    Array2D array;
    array.rows = rows;
    array.cols = cols;
    
    // 分配内存给行指针数组
    array.data = (double**)malloc(rows * sizeof(double*));
    
    // 分配内存给每一行的列数据
    for (int i = 0; i < rows; i++) {
        array.data[i] = (double*)malloc(cols * sizeof(double));
    }
    
    return array;
}

void copyArray2D(Array2D src, Array2D* dest) {
    // 确保目标数组的大小与源数组相同
    dest->rows = src.rows;
    dest->cols = src.cols;
    
    // 分配内存给行指针数组
    dest->data = (double**)malloc(src.rows * sizeof(double*));
    
    // 分配内存给每一行的列数据，并复制源数组的数据
    for (int i = 0; i < src.rows; i++) {
        dest->data[i] = (double*)malloc(src.cols * sizeof(double));
        memcpy(dest->data[i], src.data[i], src.cols * sizeof(double));
    }
}

int main() {
    // 创建源数组
    Array2D srcArray = createArray2D(3, 3);
    
    // 初始化源数组的数据
    for (int i = 0; i < srcArray.rows; i++) {
        for (int j = 0; j < srcArray.cols; j++) {
            srcArray.data[i][j] = i * srcArray.cols + j;
        }
    }
    
    // 创建目标数组并进行深度复制
    Array2D destArray;
    copyArray2D(srcArray, &destArray);
    
    // 打印目标数组的数据
    for (int i = 0; i < destArray.rows; i++) {
        for (int j = 0; j < destArray.cols; j++) {
            printf("%f ", destArray.data[i][j]);
        }
        printf("\n");
    }
    
    // 释放内存
    for (int i = 0; i < srcArray.rows; i++) {
        free(srcArray.data[i]);
    }
    free(srcArray.data);
    
    for (int i = 0; i < destArray.rows; i++) {
        free(destArray.data[i]);
    }
    free(destArray.data);
    
    return 0;
}