我对使用犰狳有疑问。
我正在使用Ubuntu 12.10，以及Code :: Blocks中的gcc编译器。 我使用synaptic包管理器安装了LAPACK和BLAS。我还使用突触包管理器安装了一次Armadillo，一次是用CMake手动安装的。 CMake在进行犰狳编译的配置时找到了LAPACK和BLAS库。此外，我在“构建选项”中的Code :: Blocks中链接了BLAS和LAPACK库 - ＆gt;“Linker”。
但是，每当我想构建我的项目时，都会收到错误消息：
In function `void arma::lapack::getrf<double>(int*, int*, double*, int*, int*, int*)':|
/usr/include/armadillo_bits/lapack_wrapper.hpp|41|undefined reference to `wrapper_dgetrf_'|
这显然意味着犰狳无法找到LAPACK，但我做错了什么？
我还取消了armadillo_bits / config.hpp文件中各自的行，因此看起来像这样：
#if !defined(ARMA_USE_LAPACK)
//#define ARMA_USE_LAPACK
//// Uncomment the above line if you have LAPACK or a high-speed replacement for LAPACK,
//// such as Intel MKL, AMD ACML, or the Accelerate framework.
//// LAPACK is required for matrix decompositions (eg. SVD) and matrix inverse.
#endif
#if !defined(ARMA_USE_BLAS)
//#define ARMA_USE_BLAS
//// Uncomment the above line if you have BLAS or a high-speed replacement for BLAS,
//// such as OpenBLAS, GotoBLAS, Intel MKL, AMD ACML, or the Accelerate framework.
//// BLAS is used for matrix multiplication.
//// Without BLAS, matrix multiplication will still work, but might be slower.
#endif
/* #undef ARMA_USE_WRAPPER */
//// Comment out the above line if you're getting linking errors when compiling your programs,
//// or if you prefer to directly link with LAPACK and/or BLAS.
//// You will then need to link your programs directly with -llapack -lblas instead of -larmadillo
当我尝试使用整数设置矩阵时，首先出现错误，所以
Mat<int> element_nodes;
我很感激有用的答案。我在互联网上搜索了几个小时。另外，如果您需要更多源代码，请与我们联系。
答案 0 :(得分：0)
看起来您安装了两个Armadillo副本，它们具有不同的配置。如有疑问，请将您的程序链接到：
g ++ prog.cpp -o prog -O2 -larmadillo -llapack -lblas
答案 1 :(得分：0)
我猜你还没有取消注释定义行！：
package password;
import java.io.BufferedWriter;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
public class password extends Thread {
String[] l1 = {"w","e","r","s","f","x","c","v"};
String[] l2 = {"u","o","j","k","l"};
String[] l3 = {"a","s","d","y","c"};
String[] l4 = {"i","o","p","k","é"};
String[] l5 = {"w","e","r"};
String[] l6 = {"q","w"};
String[] l7 = {"e","r","t"};
String[] l8 = {"e","t","d","f","g"};
String[] l9 = {"z","u","i","h","k","n","m"};
String[] l10 = {"q","e","a","s","d"};
String[] l11 = {"q","w"};
String[] l12 = {"r","t","z"};
String[] l13 = {"i","o","p"};
String[] l14 = {"h","j","k","n"};
String[] l15 = {"w","a","s"};
String[] l16 = {"o","è","l","é","a"};
String[] l17 = {"q","w","e"};
String[] l18 = {"t","z","u"};
String[] l19 = {"r","t","z"};
public password(int x, int y, int z) throws IOException{
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(
new FileOutputStream("Z:/key"+"z"+".txt"), "utf-8"));
new Thread(){
int counter = 0, counter2 = 0;
public void run() {}{
for(int a = x; a<y; a++){
for(int b = 0; b<5; b++){
for(int c = 0; c<5; c++){
for(int d = 0; d<5; d++){
for(int e = 0; e<3; e++){
for(int f = 0; f<2; f++){
for(int g = 0; g<3; g++){
for(int h = 0; h<5; h++){
for(int i = 0; i<7; i++){
for(int j = 0; j<5; j++){
for(int k = 0; k<2; k++){
for(int l = 0; l<3; l++){
for(int m = 0; m<3; m++){
for(int n = 0; n<4; n++){
for(int o = 0; o<3; o++){
for(int p = 0; p<5; p++){
for(int q = 0; q<3; q++){
for(int r = 0; r<3; r++){
for(int s = 0; s<3; s++){
writer.write(new String(l1[a]+l2[b]+l3[c]+l4[d]+l5[e]+l6[f]+l7[g]+l8[h]+l9[i]+l10[j]+l11[k]+l12[l]+l13[m]+l14[n]+l15[o]+l16[p]+l17[q]+l18[r]+l19[s]));
writer.newLine();
counter++;
if(((counter%1000000) == 0) && counter!=0){
counter2++;
System.out.println("r0" + counter2);
}
Thread.yield();
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
writer.close();
}
};
}
public static void main(String[] args) throws IOException {
password t0,t1,t2,t3;
t0 = new password(0,1,0);
t1 = new password(2,3,1);
t2 = new password(4,5,2);
t3 = new password(6,7,3);
System.out.println("asd");
long tiem = System.nanoTime();
t0.start();
t1.start();
t2.start();
t3.start();
long anodertiem = System.nanoTime();
System.out.println("Time taken: " + (anodertiem-tiem)/1000000);
}
}
下面
答案 2 :(得分：0)
如果您使用了下载的armadillo软件包中的blas和lapack库文件，可能它们不起作用，因为在自述文件中，它说它们来自第三方，所以我从其他来源下载然后编译细