How to add ARMA_USE_SUPERLU to C++ project

[morteza naji]

I added successfully Armadillo library to my c++ project in visual studio(I do not have any problem to use for example sparse matrix from Armadillo), but I have a problem regarding to solve spars matrix (spsolve).
Based on the instruction (http://arma.sourceforge.net/docs.html#spsolve), ARMA_USE_SUPERLU must be enabled in config.hpp, I did it. but when I enable ARMA_USE_SUPERLU in config.hpp I get the "unresolved externals" error.
What is the problem? How can I add SuperLU to my project? is there any one can tell me step by step to add SuperLU, please?

I saw lot of instruction to add the SuperLU, but I could not add it.

#include <iostream>
#include <Armadillo>

using namespace std;
using namespace arma;
int main(int argc, const char **argv) 
{


    sp_mat A = sprandu<sp_mat>(1000, 1000, 0.1);

    vec b = randu<vec>(1000);
    mat B = randu<mat>(1000, 5);
    vec x;
    x = spsolve(A, b);  


    return 0;

}

[ne555]

http://www.cplusplus.com/forum/articles/40071/#msg216270
http://www.cplusplus.com/forum/general/113904/

[morteza naji]

thanks for your reply. But I know what the "unresolved externals" error.
As I said my question is that how can I add SuperLU to my project?

Does any one have experience of using SuperLU?

[salem c]

http://arma.sourceforge.net/docs.html#example_prog

Notice this line
g++ example.cpp -o example -O2 -larmadillo

From what you describe, certain options only rely on the "header only" components of the library, and you can safely skip the -larmadillo bit of the command line.

But other parts need the library implementation to go with it.

This means you need to do 2 things:
1. Actually build the downloaded Armadillo library to generate said object library.
2. Configure your visual studio project to pick that library up when your project is being linked.

[morteza naji]

as I understand I should link the SuperLU library to my project in order to use this function in Armadillo. I downloaded the SuperLU from here (http://crd-legacy.lbl.gov/~xiaoye/SuperLU/) and link to my project in visual studio. but there is a problem in line 15 in my code.

I do not know what is the problem?

[ne555]

post the error message
post your build command

[morteza naji]

When I enable the ARMA_USE_SUPERLU in config.hpp, I got the below error:

1>------ Build started: Project: test, Configuration: Debug x64 ------
1> main.cpp
1>\\130.88.112.127\share\Morteza\porenetwork\test\SuperLU-master\lib\libsuperlu_4.3.a : fatal error LNK1136: invalid or corrupt file
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

#if !defined(ARMA_USE_SUPERLU)
#define ARMA_USE_SUPERLU
//// Uncomment the above line if you have SuperLU.
//// SuperLU is used for solving sparse linear systems via spsolve()
//// Caveat: only SuperLU version 5.2 can be used!
#endif 

[salem c]

> \\130.88.112.127\share\Morteza\porenetwork\test\SuperLU-master\lib\libsuperlu_4.3.a
That looks like a Unix/Linux library file, and you're compiling on Windows.

You need to make a Windows compatible library of SuperLU and link against that instead.